Study on Hydrophilicity/Hydrophobicity of Hydrogenated Diamond-Like Carbon Thin Film
| Authors | Amit Kumar Kundu1,2, Aniruddha Mondal1,3, Hari Shankar Biswas1, Dilip K. Maiti4, Sandeep Poddar5 |
| Affiliations |
1Department of Chemistry, Surendranath College, 700009 Kolkata, India 2Department of Chemistry, Sripat Singh College, Jiaganj, Murshidabad, 742123 Pin, India 3Harindanga High School, 743504 Falta, India 4Department of Chemistry, University of Calcutta, University College of Science, 700009 Kolkata, India 5Lincoln University College, Research & Innovation Division, 47301 Petaling Jaya, Malaysia |
| Е-mail | harishankarb7@gmail.com |
| Issue | Volume 16, Year 2024, Number 6 |
| Dates | Received 28 August 2024; revised manuscript received 16 December 2024; published online 23 December 2024 |
| Citation | Amit Kumar Kundu, Aniruddha Mondal, Hari Shankar Biswas, и др., J. Nano- Electron. Phys. 16 No 6, 06019 (2024) |
| DOI | https://doi.org/10.21272/jnep.16(6).06019 |
| PACS Number(s) | 68.35.Md, 78.30.Am, 82.70.Uv |
| Keywords | Hydrophilicity, Hydrophobicity, HDLC, Contact angle (2) , Raman spectra (6) , Surface energy. |
| Annotation |
Hydrogenated Diamond-Like Carbon (HDLC) thin films find extensive applications in diverse fields, such as industrial settings, including biomedical coatings with bactericidal properties, as well as in mechanical, electronic, and biomolecule immobilization contexts. To enhance the surface properties of HDLC thin films, various methods are employed, including hydrogen plasma treatment, electrochemical hydrogenation, annealing, and biomolecule immobilization. The synthesis of HDLC films involves biased enhanced nucleation (BEN) under varying H2 and CH4 flow rates in the reactive gas-plasma process (RGPP). In this study, we investigated the wettability of both pristine HDLC thin films and modified HDLC thin films using the sessile drop technique, measuring contact angles with liquids of distinct physicochemical natures, such as water and glycerin. sp3 and sp2 content of the HDLC and modified samples were measured by Raman spectrum. The surface energy of the samples exhibited a slight increase in correlation with the sp3 content of HDLC and modified HDLC samples. Notably, a strong correlation between hydrophilicity/hydrophobicity and the density of the sp2/sp3 ratio was observed across various HDLC surfaces, including as-prepared HDLC, electrochemically hydrogenated (ECHDLC), annealed HDLC surfaces, and surfaces modified through covalent immobilization of Bovine Serum Albumin (BSA) protein onto hydrogenated diamond-like carbon. |
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List of References |
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