
JOURNAL INFORMATION
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NLM Title Abbreviation: Sci Rep
Journal ID: Sci Rep

Scientific Reports

EISSN: 2045-2322
Publisher: Nature Publishing Group

ARTICLE INFORMATION
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PMCID: PMC12181427
PMID: 40542057
DOI: 10.1038/s41598-025-05691-w
Article ID: 5691
Article version: 1
Subjects: Article

Tuning surface properties of thiophene-based thin films on glass substrates for cancer cell adhesion, drug release control, and computational analysis

Metwally Heba M. hebama@mans.edu.eg
1
El-Banna Omar M. 1
Abdel-Latif Ehab 1
Gabal Raghda Abo raghdaabogabal@gmail.com
2
1 https://ror.org/01k8vtd75 grid.10251.37 0000 0001 0342 6662 Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
2 https://ror.org/01k8vtd75 grid.10251.37 0000 0001 0342 6662 Center of Excellence for Genome and Cancer Research, Urology and Nephrology Center, Mansoura University, El Dakhlia, Egypt
Electronic publication date: 2025 Jun 20
Publication date: 2025
Volume: 15
Electronic Location ID: 20170
Received 2024 Dec 22; Accepted 2025 Jun 4
Copyright: © The Author(s) 2025
Copyright year: 2025
License: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
License URL: https://creativecommons.org/licenses/by/4.0/

Keywords: Thiophene, Thin film glass, Hepatocellular, Thin film, Cancer adhesion, Drug release, Docking, DFT
Keywords: Biophysics, Cancer, Computational biology and bioinformatics, Chemistry, Materials science, Nanoscience and technology, Physics

Funding: Mansoura University Open access funding provided by The Science, Technology & Innovation Funding Authority (STDF) in cooperation with The Egyptian Knowledge Bank (EKB).

issue-copyright-statement: © Springer Nature Limited 2025

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This study explores the potential of six novel thiophene derivative thin films (THIOs) for reducing cancer cell adhesion and enhancing controlled drug release on inert glass substrates. Thiophene derivatives 3a–c and 5a–c were synthesized and characterized using IR, 1H NMR, 13C NMR, and elemental analysis before being spin-coated onto glass to form thin films. SEM analysis and roughness measurements were used to assess their structural and functional properties. Biological evaluations demonstrated that the films significantly reduced HepG2 liver cancer cell adhesion (~ 78% decrease vs. control) and enabled controlled drug release, validated through the Korsmeyer-Peppas model (R2 > 0.99). Theoretical studies, including in-silico target prediction, molecular docking with JAK1 (PDB: 4E4L), and DFT calculations, provided insights into the electronic properties and chemical reactivity of these compounds. Notably, compound 5b exhibited the best binding energy (-7.59 kcal/mol) within the JAK1 pocket, aligning with its observed apoptotic behavior in cell culture. DFT calculations further revealed that 5b had the lowest calculated energy values; -4.89 eV (HOMO) and − 3.22 eV (LUMO), and the energy gap was found to be 1.66 eV, supporting its role in JAK1 inhibition and cancer cell adhesion reduction. These findings underscore the promise of thiophene derivatives in biomedical applications, potentially leading to safer surgical procedures and more effective localized drug delivery systems.

Supplementary Information

The online version contains supplementary material available at 10.1038/s41598-025-05691-w.

1. Introduction

Surgical tools used for tumor biopsy, resection, or ablation are susceptible to cancer cell adherence when they come into direct contact with tumor tissue, which can cause complications. These attached cancer cells may stay viable and spread to surrounding healthy tissues, potentially triggering the development of new tumors1,2. Cancer seeding along the needle tract has been notably observed in patients undergoing percutaneous needle biopsy (PNB) for breast and metastatic colorectal cancers3,4. Intriguingly, concerning data reveal that 26.7% of patients with primary or secondary liver tumor exhibit proliferative cancer cells on the ablation needles used during RFA procedures, explaining the 12.5% incidence of cancer seeding along the needle tract in RFA for primary liver cancer5. To address this challenge, researchers have explored various interventions6.

The tendency of surgical instruments to facilitate cancer cell adhesion highlights the importance of understanding and mitigating potential risks, particularly in liver cancer, bladder cancer, and renal cell carcinoma treatments. Although tumor seeding along the needle tract is uncommon, it has been documented in cancers such as breast, metastatic colorectal, and papillary renal cell carcinoma, with renal biopsies exhibiting an incidence of less than 1%. Risk factors, including multiple needle passes and the use of larger gauge needles, may contribute to this phenomenon. Similarly, while bladder cancer biopsies are rare due to the preference for transurethral resection, isolated cases of tumor seeding have been reported. Investigating the application of THIO coatings in these cancers could provide valuable insights into their potential to minimize cell adhesion and improve surgical safety across various tumor environments7. Expanding research to include bladder cancer, renal cell carcinoma, and other cancer types such as breast (MCF-7, MDA-MB-231)8, colorectal (HCT116, SW480)9, lung (A549, H1975)10, prostate (LNCaP, PC-3)11 and ovarian (SKOV3)12 cancer could help evaluate the broader efficacy of these coatings, predominantly in avoiding tumor cell adhesion during biopsy and surgical procedures.

Radiofrequency ablation (RFA) emerges as a crucial therapeutic approach for health care recipients with unresectable liver malignancies. However, alarming findings indicate that a substantial proportion of patients 26.7% of those with primary or secondary liver malignancies-harbor proliferative cancer cells exposed on the ablation needles used during RFA procedures13,14. This revelation raises a critical concern: the potential for cancer cell dissemination and seeding during RFA, leading to disease recurrence and complications15. Understanding the mechanisms underlying cancer cell adhesion to surgical instruments and their impact on patient outcomes is imperative. Cancer cell attachment is influenced by hydrophobicity, roughness, stiffness, topography, charge, and curvature16,17. The interplay of these factors shapes adhesion strength and specificity, impacting drug delivery, biomaterials, and targeted therapies18,19. By unraveling these mechanisms, researchers and clinicians can devise strategies to mitigate the risk of cancer cell dissemination and enhance the efficacy of liver cancer treatments such as RFA20,21. Chitosan films incorporating a 2-aminothiophene derivative exhibited antifungal effects against Candida species22. Alternative materials have been more extensively studied, such as a thermosensitive anti-adhesive agent based on a human-derived acellular dermal matrix23, which showed promise in preventing postoperative adhesions. Similarly, visible-light curable furfuryl gelatin derivatives loaded with ibuprofen have demonstrated effectiveness as biocompatible, drug-loaded anti-adhesion barriers24.

Heterocyclic compounds shows unlimited significance in both medicinal and organic chemistry because of their extensive biological activities. Compounds containing sulfur, nitrogen, and oxygen in their structures consistently attract the interest of medicinal chemists and researchers due to their wide-ranging pharmacological properties25–31. One such heterocycle is thiophene, a five-membered ring with a sulfur heteroatom. Thiophene-containing compounds have been extensively studied for their potential as pharmaceutical agents, demonstrating a wide range of pharmacological activities32,33. For many years, thiophene derivatives, including mono-substituted, di-substituted, and tri-substituted forms, have been identified as effective anticancer drugs. Several anticancer drugs currently on the market incorporate a thiophene nucleus in their composition. Thiophene-based coatings generally exhibit stability under physiological conditions, including variations in pH and temperature. Quinoid-thiophene-based covalent organic polymers have demonstrated resilience even under conditions harsher than room temperature34. However studies have shown that thiophene-containing photosensitizers can react with singlet oxygen, leading to potential degradation35,36.

These activities include antimicrobial37,38, antifungal39, antiviral40, antitumor41, anti-inflammatory42, and antioxidant43 properties. Thiophene derivatives have attracted interest in cancer research because of their capacity to affect several cellular processes related to tumor growth. When conjugated with folate, thiophene-based compounds can specifically target these receptors44. In particular, some tetrahydrobenzo[b]thiophene derivatives function as destabilizers of tubulin polymerization, inhibitors of histone deacetylase (HDAC), and blockers of topoisomerases45. These varied mechanisms emphasize the adaptability of thiophene derivatives in cancer treatment, providing various pathways for targeted therapeutic approaches.

Many available thiophene based drugs exhibiting anticancer action through multiple pathways involved in cancer46–57. Raloxifene, thiophene analogue, is commonly used in reduction risk of invasive breast cancer in post-menopausal women58. Also, Tyrosine Kinase Inhibitor OSI-930 for both tumor cell proliferation and tumor angiogenesis in a variety of cancers59. Teniposide, is used in childhood acute lymphocytic leukemia treatment protocol60. Positron emission tomography, PET-imaging of inflammation biomarkers were used to track metabolic processes radiolabeled with thiophene61. Scientists and researchers aim to design and develop innovative, target-specific, and advanced thiophene derivatives. Thiophene derivatives can be engineered to enhance drug delivery systems, enabling targeted therapies for cancer by directing nanoparticles to specific cells45. Introducing polar groups (e.g., –COOH or –X) carboxy or halogeno derivatives could improve hydrophilicity and binding to cancer-specific receptors62.

The tumor microenvironment plays a critical role in drug resistance and chemotherapy success63,64. Partly by influencing signaling pathways such as JAK/STAT, which regulate cancer cell adhesion, proliferation, and migration. Inhibiting this pathway can alter adhesion dynamics65. Certain thiophene compounds have demonstrated the ability to inhibit vascular endothelial growth factor receptor 2 (VEGFR-2) and AKT, key proteins involved in cancer cell proliferation and survival66.

It was observed that apoptosis sensitivity increases by direct contact with specific extracellular matrix (ECM) components67. Previous research has underscored the critical role of surface topography, surface free energy, and chemical composition in determining cellular adhesion strength68. Therefore, our focus was on assessing the impact of thio-modified glass (THIOMG) surfaces specifically on cancer cell adhesion, as well as their potential for controlled drug release applications69,70. By selecting an inert glass substrate, we could isolate the effects of the THIOs and analyze their potential as biomedical coatings.

This research hypothesizes that thiophene-based (THIO) thin film coatings on glass substrates can effectively reduce cancer cell adhesion, enhance biocompatibility, and enable controlled drug release, making them promising candidates for biomedical applications, particularly in implantable medical devices and surgical instruments. Additionally, it is proposed that different THIO derivatives-methyl, methoxy, and chloride will exhibit distinct biological effects on cancer cells due to their varying electronic properties, influencing cell adhesion, viability, and proliferation71.

Six novel thiophene-based derivatives were chemically synthesized and characterized using spectroscopic methods. These compounds were spin-coated onto glass substrates, forming thin films, whose quality was assessed through scanning electron microscopy (SEM) and surface roughness analysis. Additionally, drug release kinetics were investigated to understand the controlled release behavior of these coatings. To evaluate the biomedical potential of these coatings, HepG2 liver cancer cells were seeded onto the THIO-coated glass substrates, allowing for the assessment of their cytotoxic effects on cancer cell adhesion, viability, and proliferation. Molecular docking studies were also conducted to determine the binding affinities and interactions of the synthesized THIO derivatives with key biomolecules associated with liver cancer, providing insights into their roles as potential inhibitors or modulators of cancer-related pathways.

Materials and methods

Chemistry experimental

All data related to the devices utilized in the chemistry section were included in the supplementary materials.

Synthesis of 3-hydroxythiophene compounds 3a–c

The 2-(arylhydrazono)-2-ethoxycarbonyl-thioacetanilide derivative 2a–c was prepared as reported72 and (0.002 mol) of each was dissolved in sodium ethoxide solution (which was prepared from 0.04 g Na and 20 mL absolute ethanol). The mixture was stirred for 10 min then 2-chloro-N-(4-sulfamoylphenyl)acetamide (1) (0.510 g, 0.002 mol) was added. Then, the mixture was refluxed for 2 h at 80 °C and the formed precipitate on hot was dried out and crystallized from ethanol to give the targeted 3-hydroxythiophenes 3a–c. These conditions were optimized based on prior studies77.

3-hydroxy-5-(phenylamino)-N-(4-sulfamoylphenyl)-4-(p-tolyldiazenyl)thiophene-2-carboxamide (3a)

Black solid, yield = 64.1%, m.p. = above 300 °C. IR (ν/cm− 1): 3529, 3189 (NH & NH2), 1621 (C=O), 1325 and 1157 (SO2). 1H NMR (δ/ppm): 2.29 (s, 3 H, CH3), 6.99 (d, J = 7.5 Hz, 1H, Ar-H), 7.05–7.22 (m, 6 H, Ar-H&2NH), 7.28–7.47 (m, 5 H, Ar-H), 7.64–7.68 (m, 4 H, Ar-H&OH), 11.68&12.47 (s, 1H, cis/trans conformers NH), 14.59&15.03 (s, 1H, cis/trans conformers NH). 13C NMR (δ/ppm): 20.51, 90.71, 91.14, 112.42, 113.77, 115.44, 116.97, 120.50, 121.32 (2 C), 125.01, 126.89, 129.02, 129.26 (2 C), 129.95, 133.05, 135.25, 141.72, 144.14, 147.83, 157.79, 162.95, 167.09. Anal. Calcd. %for C24H21N5O4S2 (507.10): C, 56.79; H, 4.17; N, 13.80% Found: C, 56.50; H, 4.32; N, 13.65%.

3-hydroxy-4-((4-methoxyphenyl)diazenyl)-5-(phenylamino)-N-(4-sulfamoylphenyl)thiophene-2-carboxamide (3b)

Black solid, yield = 61.1%, m.p. = above 300 °C. IR (ν/cm− 1): 3558, 3511, 3359 (OH& NH &NH2), 1634 (C=O), 1303 and 1154 (SO2). 1H NMR (δ/ppm): 3.77 (s, 3 H, OCH3), 6.93 (d, J = 9.5 Hz, 1H, Ar-H), 6.95–7.14 (m, 4 H, Ar-H&2NH), 7.18 (t, J = 7.25 Hz, 1H, Ar-H), 7.22–7.34 (m, 3 H, Ar-H), 7.41–7.48 (m, 3 H, Ar-H), 7.62–7.70 (m, 4 H, Ar-H&OH), 11.66&12.47 (s, 1H, cis/trans conformers NH), 14.38&15.05 (s, 1H, cis/trans conformers NH). Analysis calculated for C24H21N5O5S2 (523.10): C, 55.06; H, 4.04; N, 13.38% Found: C, 55.36; H, 4.19; N, 13.58%.

4-((4-chlorophenyl)diazenyl)-3-hydroxy-5-(phenylamino)-N-(4-sulfamoylphenyl)thiophene-2-carboxamide (3c)

Black solid, yield = 73.6%, m.p. = 295 °C. IR (ν/cm− 1): 3422(OH), 3309, 3201, 3240 (NH&NH2), 1646 (C =O), 1304 and 1162(SO2). 1H NMR (δ/ppm): 7.00 (d, J = 7.5 Hz, 1H, Ar-H), 7.10–7.18 (m, 2 H, Ar-H), 7.21 (t, J = 7.25 Hz, 1H, Ar-H), 7.29–7.46 (m, 8 H, Ar-H& 2NH), 7.60–7.70 (m, 4 H, Ar-H&OH), 11.67&12.43 (s, 1H, cis/trans conformers NH), 14.55&15.06 (s, 1H, cis/trans conformers NH). Anal. Calcd. for C23H18ClN5O4S2 (527.05): C, 52.32; H, 3.44; N, 13.26% Found: C, 52.08; H, 3.59; N, 13.44%.

Synthesis of 3-methylthiophene compounds 5a–c

The 2-acetyl-2-arylazo-thioacetanilide derivatives 4a-c was prepared as reported72,77 and (0.002 mol) of each was dissolved in sodium ethoxide solution (which was prepared from 0.04 g Na and 20 mL absolute ethanol). The mixture was stirred for 10 min then 2-chloro-N-(4-sulfamoylphenyl)acetamide (1) (0.510 g, 0.002 mol) was added. The mixture was refluxed for 2 h then the formed precipitate on hot was dried and crystallized from ethanol to give the targeted 3-methylthiophenes 5a–c. These conditions were optimized based on prior studies72,77.

3-methyl-5-(phenylamino)-N-(4-sulfamoylphenyl)-4-(p-tolyldiazenyl)thiophene-2-carboxamide (5a)

Orange solid, yield = 62.9%, m.p. = above 300 °C. IR (ν/cm− 1): 3380&3270 (NH&NH2), 1642 (C=O), 1311 and 1154 (SO2). 1H NMR (δ/ppm): 2.31 (s, 3 H, CH3), 2.49 (s, 3 H, CH3), 7.20–7.32 (m, 2 H, Ar-H), 7.38 (d, J = 7.5 Hz, 2 H, Ar-H), 7.45–7.53 (m, 6 H, Ar-H&NH2), 7.65–7.80 (m, 4 H, Ar-H), 12.30 &13.04 (s, 1H, cis/trans conformers NH), 15.08&16.65 (s, 1H, cis/trans conformers NH). 13C NMR (δ/ppm): 13.01, 20.67, 116.90 (2 C), 120.12 (2 C), 120.82 (3 C), 125.78, 126.49 (2 C), 129.68 (3 C), 130.06 (2 C), 135.27, 135.71, 136.53, 138.66, 142.65, 146.40, 155.14, 161.50.Anal. Calcd. for C25H23N5O3S2 (505.12): C, 59.39; H, 4.59; N, 13.85% Found: C, 59.62; H, 4.70; N, 13.75%.

4-((4-methoxyphenyl)diazenyl)-3-methyl-5-(phenylamino)-N-(4-sulfamoylphenyl)thiophene-2-carboxamide (5b)

Orange solid, yield = 45%, m.p. = 293–295 °C. IR (ν/cm− 1): 3364 and 3262 (NH&NH2), 1639 (C=O), 1311 and 1153 (SO2) .1H NMR (δ/ppm): 2.57 (s, 3 H, CH3), 3.81 (s, 3 H, OCH3), 7.05 (d, J = 9 Hz, 2 H, Ar-H), 7.24 (t, J = 7.25 Hz 1H, Ar-H), 7.41–7.55 (m, 5 H, Ar-H&2NH), 7.63–7.83 (m, 7 H, Ar-H), 10.15 (s, 1H, NH) 13.62 (s, 1H, NH). 13C NMR (δ/ppm): 13.32, 55.49, 114.75, 118.33, 120.04 (2 C), 120.20, 120.41 (3 C), 125.30, 126.54 (2 C), 129.75 (3 C), 134.24, 138.52, 138.64, 141.44, 142.10, 143.73, 151.21, 158.84, 161.46. Anal. Calcd. for C25H23N5O4S2 (521.61): C, 57.57; H, 4.44; N, 13.43% Found: C, 57.49; H, 4.59; N, 13.28%.

4-((4-chlorophenyl)diazenyl)-3-methyl-5-(phenylamino)-N-(4-sulfamoylphenyl)thiophene-2-carboxamide (5c)

Orange solid, yield = 71.4% %, m.p. = above 300 °C. IR (ν/cm− 1): 3374 and 3266 (NH&NH2), 1634 (C=O), 1312 and 1154 (SO2). 1H NMR (δ/ppm): 2.52 (s, 3 H, CH3), 7.26–7.90 (m, 15 H, Ar-H&2NH), 10.76 (s, 1H, NH) 14.15 (s, 1H, NH). Anal. Calcd. for C24H20ClN5O3S2 (525.07): C, 54.80; H, 3.83; N, 13.31% Found: C, 54.75; H, 3.98; N, 13.15%.

Fabrication of thiophene-glass thin film derivatives

The six novel thiophene powders (3a–c and 5a–c) were dissolved in DMSO at room temperature. Each thiophene derivative (55 mg) was individually dissolved in 5 mL of DMSO and filtered. Using the spin coating method, thiophene thin films were applied to cleaned optical glass substrates with a VTC100A Compact Spin Coater, set to 8000 rpm for 4-inch wafers. The speed of the spin coater was adjusted to 2500 rpm, and a drop of each solution was placed onto the rotating substrate to form the films. The films were allowed to dry for 48 h at room temperature in the dark.

Characterization of thiophene-glass thin film derivatives

Field emission scanning electron microscopy (FE-SEM)

Field emission scanning electron microscopy (FE-SEM) using a JEOL JSM-IT100 (Japan) provided comprehensive information about the size and morphology of the deposited materials. To improve conductivity, three samples were coated with a thin gold layer (1.5–3 nm) at 30 kV and 30 µA. The surface roughness was assessed to analyze the synthesized surface profile on the PCL scaffolds. For quantitative evaluation, J-Image software was utilized to measure the arithmetical mean roughness (Ra), the root mean square roughness (Rq), Skewness (Rsk), Kurtosis (Rku), Maximum peak height (Rp), the lowest valley(Rz)72,73.

In vitro release studies

In vitro release studies for all samples were conducted in PBS (pH 7.4) with 0.2% Tween 80. Each sample was dispersed in 2 mL of the release medium contained within a Falcon tube holding 50 mL of PBS. At set time intervals, 2 mL was withdrawn and replaced with fresh media. After generating a standard curve, the concentration of the drug released from each sample was quantified using UV-Vis spectroscopy at the relevant wavelengths. The release kinetics were analyzed using various models, including Zero-Order Kinetics, First-Order Kinetics, the Higuchi Model, and the Korsmeyer-Peppas Model. A cumulative release curve was then created, plotting the percentage of drug released over time, with data collected in triplicate, and presented as mean ± standard deviation (SD).

Sterilization of materials for cell culture studies

For cell culture experiments, materials were organized as thin films and located at the underside of tissue culture plastic dishes. These films were sterilized by soaking in 75% ethanol for 10 min, followed by rinsing with PBS to remove any remaining alcohol. Finally, the films were sterilized using UV light.

Setting up cell cultures on experimental films

The study investigated the cytotoxic effects of different materials on HepG2 human liver cancer cells. HepG2 cell lines were purchased from Nawah Scientific Company, Egypt. HepG2 cells were grown in DMEM high glucose medium supplemented with 10% fetal bovine serum (FBS) and antibiotics. The cells were seeded at a density of 2 × 104 cells/cm2 in 3 ml of serum-containing medium on either material films as a control. After the incubation period, the culture plates were removed, and the medium was discarded. The glass surfaces were washed three times with phosphate-buffered saline (PBS) to remove any unattached or loosely adhered cells. Cytotoxicity was assessed by measuring the reduction in cell growth using J-image analysis, which involved capturing images to evaluate cell viability and proliferation74. Cell area measurements were conducted to assess the morphological changes of HepG2 cells in response to various treatment conditions. The cells were cultured under standard conditions and divided into several groups: an untreated control group (HepG2) and six treatment groups labeled 3a, 3b, 3c, 5a, 5b, and 5c. The cell area was quantified through Python utilizing libraries skimage. A minimum of 100 cells per group were analyzed to ensure statistical reliability, and the experiment was repeated across independent replicates to validate the consistency of the observed trends. To optimize data accuracy, image preprocessing steps including grayscale conversion, background subtraction, and noise filtering were applied. These procedures allowed for a clear and reliable assessment of cell morphology, ensuring robust data for subsequent statistical analysis.

Theoretical calculations

In silico-target prediction

In Silico-Target Prediction was performed using https://www.swisstargetprediction.ch made by Swiss Institute of Bioinformatics. For determining the target-affinity prediction of our compounds to specific kinase enzyme, computational Tools for Analyzing PPI and Chemico-Protein Interactions was used. The primary sources of data incorporated into STRING include experimental interaction data, computationally annotated complexes and pathways from existing databases, automated text mining from scientific literature, genomic context predictions, and evidence transferred from other organisms, accessible at https://string-db.org/. The interaction scores provided by STRING range from 0 to 1, with 1 indicating the highest confidence level. Additionally, the PPI networks generated by STRING can be visualized using the Cytoscape plaThioorm (https://cytoscape.org/), facilitating a comprehensive understanding of the interaction landscape.

Molecular docking

To study the binding capabilities of the target compounds, Molecular Operating Environment (MOE, 2019.01) software was exploited for docking purpose. Refer to the Supporting Information for further details. The crystal structure of JAK1 Gene-Janus Kinase 1 was downloaded from Protein Data Bank (PDB: 4E4L). Docking simulation of the synthesized compounds at JAK1 kinase active site was carried out in comparison with Jak1 gene protein codes downloaded from protein data bank (PDB: 3EYG, 3EYH, 4E4N and 4E5W).

DFT-calculation

The compounds were subjected to DFT simulations to verify the intended geometries of the molecules under inquiry. The DFT calculations were carried out utilizing the DMol3/BIOVIA-MS platform75 via GGA/RPBE functionality and the DNP basis set. DFT parameters were obtained by employing HOMO and LUMO values of energy to represent the chemical reactivity of compounds76–79.

Statistical analysis

ImageJ 64-bit software was utilized to quantify roughness results. Data are presented as mean ± standard deviation (SD). For Microscopic images, Statistical analysis was conducted using Python (version 3.12.7). To compare the control group with all treated groups (3a, 3b, 3c, 5a, 5b, 5c), the Kruskal-Wallis test (non-parametric method) was applied. The results indicated a statistically significant difference among the groups (p < 0.05), suggesting that at least one treatment group exhibited a distinct cell area distribution compared to the others. To explore differences between the control group and each individual treated group, Mann–Whitney U tests were performed. These pairwise comparisons confirmed statistically significant reductions in cell area variability across all treated groups relative to the control (p < 0.05), in agreement with the patterns observed in the boxplot visualizations. Results were expressed as medians with interquartile ranges (IQR).

Results and discussion

Chemistry

The targeted novel thiophene derivatives 3a–c and 5a–c were synthesized using a one-step process. This involved condensing 2-chloro-N-(4-sulfamoylphenyl)acetamide (1) with different functionalized thiocarbamoyl compounds 2 and 4, respectively. The reported method has been used to prepare the multipurpose chloroacetamide compound, 2-chloro-N-(4-sulfamoylphenyl)acetamide (1)80. In an ethanolic hot sodium ethoxide solution, 2-chloro acetamide 1 was reacted with 2-(arylhydrazono)-2-ethoxycarbonyl-thioacetanilide (2a–c)43,81 (Scheme 1). Spectroscopic methods like IR, 1HNMR, 13CNMR and mass spectroscopy of the newly synthesized compounds were entirely in agreement with the designated molecular structures. Synthesis of our intended thiophene derivatives 5a–c was carried out using the aforesaid successful one step approach. Thus, the reaction of 2-chloro acetamide 1 with 2-acetyl-2-arylazo-thioacetanilide derivatives (4a–c)82,83 in ethanol containing sodium ethoxide gave the corresponding 3-methyl thiophene-2-carboxamide derivatives 5a–c (Scheme 1). The newly synthesized compound’s structures were confirmed using IR and 1H NMR data, which validated the assigned molecular structures.

Scheme 1 Synthesis of the novel 3-hydroxy thiophenes 3a–c and 3-methyl thiophenes 5a–c.

Characterization of thiophene-glass thin film derivatives

Field emission scanning electron microscopy (FE-SEM)

As shown in (Fig. 1), the SEM images demonstrate distinct differences in the surface morphology of thin films. In Image 3a, Fig. 1, the surface is irregular and uneven, with large aggregates and voids, indicating poor uniformity and inconsistent deposition. Image 3b, Fig. 1, shows a more uniform distribution of spherical particles, though there is a noticeable central cluster, possibly caused by localized defects or impurities during the spin-coating process. In Image 3c, Fig. 1, the surface is the most uniform and smooth, with evenly distributed spherical particles and minimal defects, suggesting better control over the deposition process. This image represents the best thin film formation, featuring a smooth and consistent surface.

Similarly, the SEM images (Fig. 1 and 5a, 5b, and 5c) highlight noticeable differences in the thin films surface morphology produced by spin coating. Figure 1 and 5a and 5b, exhibit fibrous, flaky structures with irregular shapes and random orientations, reflecting poor uniformity in the deposition process. Both images display elongated particles, but 5b has a denser and more interwoven fiber arrangement, indicating a slight improvement in uniformity compared to 5a. In contrast, Fig. 1 and 5c shows evenly distributed flower-like structures, indicating better control over the spin coating process and leading to higher-quality thin film formation.

Fig. 1 Scan electron microscope images for samples 3a–c, 5a–c (1000× magnification) showing surface morphology of thin films prepared via spin coating.

Fig. 2 Surface plot and surface roughness curves for samples 3a–c and 5a–c.

Table 1 Surface roughness parameters for samples 3a-c and 5a-c, showing root mean square roughness (Rq), average roughness (Ra), skewness (Rsk), kurtosis (Rku), maximum peak height (Rp), the lowest valley(Rz).The table reflects the differences in surface texture, sharpness, and peak distribution across the samples.

Sample	Rq	Ra	Rsk	Rku	Rp	Rz	
3a	25.5783	16.2791	3.9777	28.8427	255	0	
3b	42.2802	24.7138	3.0804	9.7554	255	0	
3c	38.01	27.29	1.60	4.61	255	0	
5a	40.97	28.14	2.44	6.82	255	0	
5b	43.61	31.07	1.20	4.88	255	0	
5c	21.36	11.32	5.12	39.59	255	0	

The roughness figures presented in the Fig. 2 reveal significant variation in surface topography across the samples with is corresponding surface profile curves, providing insight into the texture and features of each surface. The structural variations in the thiophene-2-carboxamide derivatives 3a–c and 5a–c play a crucial role in determining their behavior during thin-film formation on glass substrates. Compound 3a, with its hydroxyl group and p-tolyl diazenyl substitution, exhibits rough surface morphology with large aggregates, indicating poor uniformity, likely due to limited interaction with the glass substrate and irregular solvent evaporation. In contrast, 3b and 3c, also featuring hydroxyl groups, demonstrate stronger hydrogen bonding with the substrate, leading to better adhesion and more uniform films. This is particularly evident in 3c, where the presence of a chlorine atom adds a hydrophobic character but still allows for smoother deposition due to a balanced interaction between polar and non-polar regions. The 3-methyl-substituted compounds 5a–c show reduced adhesion due to the absence of the hydroxyl group, resulting in rougher surfaces and less uniform film coverage. Among these, 5c, with a chlorine substitution, displays improved uniformity compared to 5a, likely due to the electron-withdrawing nature of the chlorine atom. Overall, the presence of hydrophilic groups (as in 3b and 3c) enhances film smoothness, while hydrophobic substitutions (as in 5a and 5b) result in rougher, less uniform thin films. The balance between polarity, hydrophobicity, and functional groups defines the quality and morphology of the thin films formed via spin coating.

As shown in Table 1 the surface roughness analysis of samples 3a–c and 5a–c reveals distinct characteristics across the set. Sample 3a demonstrates moderate roughness, with an Rq of 25.58 and Ra of 16.28, and a strongly positive skewness (Rsk = 3.98) indicating a surface with more peaks, along with sharp features as reflected by its high kurtosis (Rku = 28.84). Sample 3b, with a higher Rq (42.28) and Ra (24.71), is rougher than 3a, but with less extreme skewness and kurtosis, though it maintains similar peak height. Sample 3c has similar roughness to 3b but with lower skewness (Rsk = 1.60) and kurtosis (Rku = 4.61), suggesting fewer sharp features. Sample 5a shows comparable roughness to 3b and 3c, though it has sharper features than 3b, as indicated by its kurtosis (Rku = 6.82). Sample 5b is the roughest of all (Rq = 43.61, Ra = 31.07), with a moderate skewness and kurtosis. In contrast, sample 5c has the lowest roughness values (Rq = 21.36, Ra = 11.32) but exhibits the most extreme skewness (Rsk = 5.12) and kurtosis (Rku = 39.59), indicating a surface with sharp, tall peaks. All samples exhibit high maximum peak heights (Rp = 255), suggesting significant variations in surface topography across the set.

In vitro release studies

Table 2 The fit parameters for different mathematical models (zero-order, first-order, higuchi, and Korsmeyer-Peppas models) used to analyze drug release from thin films.

Compounds	Zero order fit	First order fit	Higuchi fit		Korsmeyer-Peppas fit	
K0(µg.h−1)	Intercept	R 2	K1(h−1)	Intercept	R 2	KH(µg.h−1/2)	Intercept	R 2	n	Intercept	Kp	R 2	
3a	17.81	111.80	0.96	0.22	6.44	0.86	569.01	1247.70	0.93	0.59	1.38	23.99	0.99	
3b	51.37	39.72	0.94	0.19	8.00	0.92	1515.36	3414.65	0.92	0.54	1.37	23.44	0.99	
3c	0.44	20.97	0.74	0.15	2.77	0.92	49.15	87.73	0.97	0.85	1.37	23.44	0.99	
5a	8.3	422.54	0.88	0.19	6.09	0.95	969.64	1712.27	0.97	0.88	1.38	23.99	1	
5b	12.1	569.06	0.88	0.20	6.53	0.97	1331.62	2364.58	0.97	1.13	-1.57	0.027	0.99	
5c	10.26	17.48	0.94	0.19	6.35	0.94	258.86	612.63	0.91	2.39	-3.31	0.001	0.99	

Table 2 presents the fit parameters obtained from zero-order, first-order, Higuchi, and Korsmeyer-Peppas models for drug release profiles of various thin films labeled as 3a–c and 5a–c. The goodness-of-fit for each model is indicated by the R2 values. The intercept represents the initial burst release or initial conditions of the model. A more negative intercept suggests a higher initial burst or a deviation from the ideal linear model at early times. The highest R2 value for each model signifies the best fitting model for the respective thin film.

Fig. 3 Korsmeyer–Peppas drug release model for samples 3a–c, 5a–c: excellent fit with R2 values ranging from 0.99 to 1, indicating high correlation between experimental and theoretical data.

Figure S16A, B shows that for the First and Zero Order Fits, the R2 values for these fits are generally lower than those for Korsmeyer–Peppas and Higuchi, indicating that these models may not describe the release kinetics as accurately as the others. These findings suggest that the Korsmeyer–Peppas Fig. 3 and Higuchi Fig. S16C models are most suitable for describing the drug release profiles of these compounds, with Korsmeyer-Peppas providing the best fit overall. The Korsmeyer–Peppas model Fig. 3 appears to provide the best fit overall, suggesting that it captures the complexity of the drug release mechanisms more effectively than the other models. The zero-order and Higuchi models are also useful but may not fully describe the complex release behaviors seen in these compounds.

The Korsmeyer–Peppas data reveals distinct patterns in the release kinetics of the compounds, with variations in the release exponent n, intercept, and release rate constant Kn across the different structures. For compounds with n values between 0.54 and 0.88, such as 3a, 3b, and 3c, the release mechanism is governed by anomalous transport, where the release is a combination of diffusion and matrix effects. These compounds exhibit relatively high Kn around 23.99 and 23.44, suggesting faster release rates, which is typical for hydrophilic compounds that dissolve more readily in PBS. In contrast, for compounds 5b, and 5c, n values greater than 1 indicate a shift towards super case II transport. The lower Kn values for these compounds suggest slower, more controlled release profiles, which can be attributed to the presence of hydrophobic groups. These groups reduce the solubility of the compounds in PBS, resulting in a sustained release rather than rapid dissolution.

The surface morphology of thin films plays a pivotal role in dictating drug release kinetics. Enhanced surface roughness increases the surface area, facilitating greater interaction with the release medium and potentially accelerating drug diffusion. Studies have demonstrated that rougher surfaces can improve drug release rates due to this increased interaction84. Additionally, the porosity of a film influences its drug release behavior; higher porosity provides more pathways for drug diffusion, leading to faster release profiles85. Furthermore, the chemical composition and proportion of polymers used in film formation affect surface properties and dissolution rates. Variations in composition can alter surface energy and hydrophilicity, impacting drug release mechanisms.

Setting up cell cultures on experimental films

Figure 4 represents typical optical micrographs of living HepG2 cancer cells obtained using an inverted microscope. The cell lines displayed an epithelial morphology and adherent properties in cell culture on bare glass. As shown in Fig. 4, our results revealed a reduction in the number of cancer cells on the THIO-coated surfaces. The number of cells on the THIO-coated surfaces (3a–c) is even lower than on the bare glass surfaces. The cells on THIO-coated surfaces (5a–c) exhibited apoptotic and necrotic behavior compared with the control and THIO-coated surfaces (3a–c).

In control cells, the cells appear well-distributed with typical morphology seen in healthy HepG-2 cells. They are elongated and spindle-shaped, indicating that they are alive and attached to the substrate. The even distribution and healthy appearance suggest that the control cells are thriving under standard culture conditions. In 3a, the cells in this image appear more irregular in shape compared to the control. Some cells seem rounded and detached from the surface, which is often a sign of cell death or stress. In 3b, there is a mix of cell morphologies. Some cells retain a more elongated form, while others appear more rounded and darker, which may indicate that some cells are alive but stressed, while others are undergoing cell death. In 3c, the HepG2 cells cultured on this substrate exhibit typical epithelial morphology but may show slightly less attachment and proliferation compared to the control cells. In 5a The HepG2 cells on this substrate could display increased apoptosis or reduced proliferation. In 5b, HepG2 cells on this surface might exhibit pronounced apoptotic and necrotic. In 5c, HepG2 are likely more detached or dead, displaying features of both apoptosis and necrosis.

There is moderate impact on cell adhesion and proliferation due to the hydrophobic nature of the methyl group in methyl derivatives 3a, 5a, cells show apoptotic behavior. Cells may be rounded and exhibit early signs of apoptosis. While, methoxy derivatives 3b, 5b, show typical epithelial morphology, but potentially fewer in number compared to the control. Chloride Derivatives 3c, 5c, show the strongest impact on cell viability86. The chemical groups (methyl, methoxy, and chloride) modulate the surface’s polarity and hydrophobicity, which in turn influences how HepG2 cells adhere, proliferate, and survive. The films significantly reduced HepG2 liver cancer cell adhesion (~ 78% decrease vs. control).

The boxplot Fig. 5, illustrates a comparison of cell area between the control group HepG2 cell and THIO-coated surfaces (3a, 3b, 3c, 5a, 5b, 5c). The control group displays a significantly wider range of area values, with numerous high outliers extending up to approximately 4900 μm2, indicating substantial variability and the presence of enlarged cells under normal conditions. The median area in the control group is around 350 μm2, but the large spread and high number of outliers reflect natural heterogeneity. In contrast, all THIO-coated surfaces exhibit a notably narrower distribution of cell area, with median values clustered between approximately 250 and 350 μm2. These THIO-coated surfaces also show fewer and smaller outliers, suggesting a more consistent cell size following treatment. 3b shows a slightly wider spread than others, with some outliers reaching around 1000 μm2, whereas THIO-coated surface 3a presents a tighter distribution with a lower median. 5a, 5b, and 5c show relatively similar patterns, but 5c appears to have a slightly higher median and more upper-range outliers than 5a or 5b.

The potential application of THIO thin films in implantable medical devices lies in their ability to reduce cancer cell adhesion and enhance controlled drug release. To adapt these films for biomedical use, it is critical to optimize their biocompatibility, mechanical stability, and surface modification capabilities. By leveraging these characteristics, THIO thin films could be engineered to minimize biofouling, correct tissue compatibility, and increase the functional lifespan of implantable devices. Such innovations would contribute to the development of next-generation biomedical implants that maintain performance and biostability in physiological environments.

Fig. 4 Displays optical micrographs captured using an inverted microscope, showing HepG-2 cancer cells on various substrates: (a) 3a–c and 5a–c, rounded, detached cells are often indicative of dying cells, while those maintaining the typical elongated shape are likely still alive, control cells: (b) morphology and distribution of HepG-2 cells without substrate intervention.

Fig. 5 Boxplot comparison of cell area across the control and treated groups. Cell area (µm2), vs. experimental groups. The control group shows the highest variability and extreme outliers, while all treated groups exhibit reduced spread and fewer outliers, indicating more uniform cell sizes post-treatment.

Theoretical calculations

In silico-target prediction

The Swiss Target Prediction software was used to scan the novel compounds 3a–c and 5a–c, revealing their notable potential to bind with kinases, especially protein tyrosine kinase, as depicted in (Fig. 6). Compounds 5b and 5c exhibited the highest kinase affinities of 66.7% and 73.3%, respectively, whereas compound 3c showed a kinase affinity of 26.7%. Additionally, the kinase affinities for compounds 3a, 3b, and 5a were recorded at 20%, 13.3%, and 6.7%, respectively. PPI Network Analysis and Functional Enrichment was used to express the functional categories of significantly altered proteins in HEpg2 cells (Fig. S17). Janus kinase 1 (JAK1) is a critical component of the JAK-STAT signaling pathway, playing a key role in mediating the effects of various cytokines and growth factors. In the interleukin-2 (IL-2) pathway, JAK1, along with JAK3, is activated upon IL-2 binding to its receptor, leading to T cell proliferation and differentiation. Similarly, in the interferon-gamma (IFN-γ) pathway, JAK1 partners with JAK2 to phosphorylate STAT1, driving immune responses. JAK1 also collaborates with JAK2 in the interleukin-6 (IL-6) pathway, where it activates STAT3 to mediate inflammation and immune responses. Furthermore, JAK1 is essential in the type I interferon (IFN) signaling pathway, working with TYK2 to phosphorylate STAT1 and STAT2, forming the ISGF3 complex that induces antiviral gene expression. In the growth hormone receptor (GHR) pathway, JAK1 assists JAK2 in phosphorylating STAT proteins to regulate growth-related genes87.

Fig. 6 Swiss target prediction scanning for compounds 3a–c, 5a–c.

Molecular docking

The interesting target-affinity prediction of our compounds to protein tyrosine kinase enzyme was further investigated using molecular docking studies. Table 3, shows docking score, root mean square deviation RMSD and the ligand interactions with PDB 4E4L. The amino acids involved in the interaction were Arg 877, Arg1007, Glu 1033, Glu 883, Lys 876, Ile 878, Tyr 1059, Ser 1137, Asp 1021.

These interactions were either hydrogen bonding (donor or acceptor) or hydrophobic interactions (π –H interaction). The interaction through the amino acid Arg 877 was a common feature between the synthesized compounds and the active ligand site, as primarily depicted.in Table 3. Sorafenib as standard drug was sharing the same amino acid interaction. Compound 5b as 3-methyl thiophene showed the best binding energy to the pocket (7.59 kcal/mol) and it also showed a remarkable apoptosis behavior against HepG2 cells, Fig. 7, S18–S23. Also compounds 5a and 5c having the docking scores (6.48 and 6.59 kcal/mol) shares the uniqe apoptosis performance against HepG2 cells. Compound 5c expressed the lowest RMSD value, with 0.73 A. 3-hydroxy thioehene derivatives 3a–c exhibited docking scores 6.58, 6.55, 6.44 kcal/mol, respectively. They also share similar behaviour on HepG2 cells.

Table 3 Interaction between ligands and protein 4E4L, showing energy of binding, RMSD, 2D structure, interaction type and distance with specific receptor.

Fig. 7 The interaction between 3-methylthiophene 5b and (PDB ID: 4e4l).

DFT-calculation

To gain insight into electronic properties and chemical reactivity of investigated compounds, computational method is utilized to analyze frontier molecular orbitals (FMOs) and molecular electrostatic potential (MEP). The optimized structures and the numbering of atoms of 3a–c and 5a–c are shown in Fig. 8, S24–S28. Where calculated isodensities of LUMO (lowest unoccupied molecular orbital) and HOMO (highest occupied molecular orbital) of the investigated molecules are presented in Table 4. These parameters were indicative of their electron accepting and donating nature, respectively. The HOMO-LUMO energy gap, ΔEH−L = EH–EL, and MEP plots illustrates the molecule’s chemical stability, charge transfer and reactive sites88,89. Molecule bioactivity claims a decrease of HOMO-LUMO energy gap validating more ease charge transfer interactions within the molecule90. Also easier HOMO-LUMO electron transfer by absorbing light energy of a specific wavelength91 and recent studies offer valuable comparative frameworks92,93. The energy levels of HOMO and LUMO and ΔEH−L was theoretically estimated in Table 4.

The HOMO plots of 3a, 5a consists of the non-bonding lone pair of heteroatoms π-orbitals of N-C-O carboxamide group, N-phenyl moiety except two carbons, thiophene carbons except C-OH or C-Me, azophenyl moiety except two carbons and 4-methyl substituent. The HOMO plots of 3b, 5b consists of the non-bonding lone pair of heteroatoms π-orbitals N-C-O carboxamide group, N-phenyl moiety except two carbons, thiophene carbons except C-OH or C-Me, azophenyl moiety except 4-methyl substituent. The HOMO plots of 3c, 5c consists of the non-bonding lone pair of heteroatoms π-orbitals N-C-O carboxamide group, N-phenyl moiety except two carbons, thiophene carbons except C-OH, azophenyl moiety except two carbons. While, the LUMO plots of 3a-c consists of the non-bonding lone pairs of N-aniline, π-orbitals of thiophene carbons except C-carboxamide group, azophenyl moiety except two carbons and (4-methyl substituent or Cl gp). The LUMO plots of 5a-c consists of the non-bonding lone pairs of N-aniline, π-orbitals of thiophene ring except C-Azo, C-O carboxamide group, azophenyl moiety except two carbons and (4-methyl substituent or Cl gp).

The observed interactions were reflected on the EH and EL values as the EH of all compounds, ranging closely between − 4.89 and − 5.24 eV, while EL values between − 3.22 and − 3.46 eV. Among these, the methyl derivative 5b exhibited the lowest EH value compared to its counterparts, suggesting a ranking of the hydroxy and methyl derivatives from highest to lowest as b > a > c based on their EH and EL values. Furthermore, the HOMO-LUMO energy gap data, ΔEH−L, ranging from 1.66 to 1.78 eV, indicated that the hydroxy derivative 3c had the highest gap value among both the hydroxy and methyl groups, 3a–c and 5a–c respectively, with the hydroxyl derivatives generally exhibiting higher values than the corresponding methyl derivatives. The values of ΔEH−L, for the hydroxy and methyl derivatives ordered b > a > c. Finally, the hydroxy derivatives, 3c, showed higher EHOMO and ΔEH−L while lower ELUMO than other derivatives, while methyl derivative 5b, showed the lowest EHOMO, ELUMO and ΔEH−L, which is clearly has shown curiously as apoptotic behavior against HepG2 cells. Recent studies93–95highlighted the role ΔEH−L influencing chemical reactivity and docking behavior, which aligns with our findings for compound 5b. The MEP surface map Fig. 8b, provides a comprehensive visualization of the compound 5b electrostatic potential as follow; the red region (e.g., near N and O) indicate electron-rich regions, conductive for electrophilic interactions. While blue region indicate electron-poor sites, which are suitable for nucleophilic reactions or hydrogen bonding.

Table 4 The HOMO energy (EHOMO), LUMO energy (ELUMO), HOMO–LUMO energy gap (ΔEH−L) in eV.

Compound	HOMO eV	LUMO eV	ΔEH−L	
3a	− 5.09	− 3.32	1.77	
3b	− 4.99	− 3.22	1.77	
3c	− 5.24	− 3.46	1.78	
5a	− 4.97	− 3.30	1.68	
5b	− 4.89	− 3.22	1.66	
5c	− 5.15	− 3.45	1.69	

Fig. 8 (a) Optimized structures, (b) electron density, (c) HOMO and LUMO for compound 5b.

Conclusion

This study successfully modifies glass substrate surfaces using six novel thiophene-based (THIO) coatings to minimize cancer cell adhesion and enable controlled drug release. The results highlight the potential of THIO coatings in improving the biocompatibility and functionality of medical implants by reducing biofouling and lowering post-surgical risks. Cytotoxicity analysis demonstrated that different THIO derivatives exhibit distinct biological effects: methyl derivatives moderately affect HepG2 cell adhesion and proliferation, methoxy derivatives significantly induce apoptosis due to their electron-donating properties and hydrophilicity, while chloride derivatives exert the strongest cytotoxic effects by disrupting cellular ionic balance and triggering apoptosis and necrosis.

The ability of THIO coatings to regulate drug release and selectively impact cancer cell viability suggests their suitability for targeted biomedical applications, particularly in oncology. Further investigations using transmission electron microscopy (TEM) could provide deeper insights into how THIOs interact with various cancer cell types, aiding in the development of customized thiophene-based therapies. Expanding research to bladder cancer and renal cell carcinoma could help assess the broader effectiveness of these coatings, especially in relation to preventing tumor cell adhesion in biopsy and surgical procedures.

To translate THIO coatings into clinical applications, several critical aspects must be addressed, including biocompatibility, durability, functional performance, large-scale production, and regulatory approval. Before THIO-based coatings can be used in clinical applications, several critical challenges must be addressed. These include ensuring their biocompatibility, long-term stability, and effectiveness in vivo, which would require extensive preclinical testing. Regulatory approval processes, such as those from the FDA or EMA, would need to be navigated, requiring rigorous clinical trials to demonstrate safety and efficacy. Additionally, challenges related to manufacturing scalability, reproducibility, and cost-effectiveness must be addressed to ensure widespread commercialization. Collaborations with industry partners will be essential to overcome these obstacles and bring THIO coatings to market for real-world medical use. Beyond liver cancer applications, the research assesses the potential of THIO coatings in biomedical fields, particularly in implantable medical devices and surgical instruments, by analyzing their cytotoxicity, biocompatibility, and stability. Future investigations will explore their effectiveness in preventing tumor seeding during biopsies and their role in treating bladder cancer and renal cell carcinoma, expanding their applicability in diverse oncological environments. Future research should focus on conducting further in vitro and in vivo studies to validate the selective targeting of cancer cells and explore the long-term safety and efficacy of the approach. Additionally, clinical trials will be essential to determine its potential for translating into a viable treatment option for cancer patients.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary Material 1

Acknowledgements

The project is funded by The Science, Technology & Innovation Funding Authority STDF project number 48741.

Author contributions

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. H.M.M. conceptualization, modelling and docking studies, writing original draft, data analysis, proofreading, manuscript handling, OMB synthesis, methodology, characterization of compounds, E.A.-L. supervision, initial corrections, RAG biological evaluation, data curation writing original draft, data analysis, proofreading. All the authors read and approved the final manuscript.

Funding

Open access funding provided by The Science, Technology & Innovation Funding Authority (STDF) in cooperation with The Egyptian Knowledge Bank (EKB).

Data availability

The datasets used and/or analyzed during the current study available from the corresponding author on reasonable request.

Declarations

Competing interests

The authors declare no competing interests.

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.


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