Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfaces
Visibility is decreased when fog accumulates on the clear surface of optical devices. It is quite desirable to design the surface with antifogging properties. The current study used a dip coating process to prepare copper-incorporated polyvinyl alcohol (PVA) hydrophilic coating on the hydroxylated g...
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Elsevier
2024-11-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941824002964 |
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| author | Sivakumar Bose Jung Seonho Hyun Wook Kang |
| author_facet | Sivakumar Bose Jung Seonho Hyun Wook Kang |
| author_sort | Sivakumar Bose |
| collection | DOAJ |
| description | Visibility is decreased when fog accumulates on the clear surface of optical devices. It is quite desirable to design the surface with antifogging properties. The current study used a dip coating process to prepare copper-incorporated polyvinyl alcohol (PVA) hydrophilic coating on the hydroxylated glass substrate. The formation of the PVA-Cu complex by the hydroxyl group was determined by FTIR and XPS methods. The surface morphology, adhesion test, wettability behavior, and cytotoxicity were investigated by SEM, cross-cut tape, contact angle measurement, and MTT experiment. By varying the CuCl2 concentration (0.0125–0.0625 M), the durability and adhesion of the coating were improved, as evidenced by its minimal mass loss and water uptake. The optimum coating condition showed a thickness of about 24.0 ± 0.7 μm and a good optical transmittance of over 90 %. Below 0.0375 M, the coating stability and water resistance could not be achieved due to the weak complexation of Cu with the PVA coating. In contrast, the PVA-Cu3 coating (0.0375 M, Cu2+ ions) was identified as an optimized condition for improved antifogging performance due to the effective complexation of Cu with the PVA matrix while maintaining the hydrophilicity and wettability behavior. Furthermore, no cytotoxicity was observed by L929 cell lines in response to the prepared coating. The current study results revealed that the adhesive, hydrophilic PVA-Cux coating with a contact angle of less than 62° might demonstrate strong antifogging properties and find its usage for endoscopic applications. |
| format | Article |
| id | doaj-art-9d1ac9eee9234486be0fd71e6f720a4b |
| institution | Kabale University |
| issn | 1873-2348 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj-art-9d1ac9eee9234486be0fd71e6f720a4b2024-11-16T05:09:44ZengElsevierPolymer Testing1873-23482024-11-01140108619Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfacesSivakumar Bose0Jung Seonho1Hyun Wook Kang2Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, Republic of KoreaMajor of Biomedical Engineering, Division of Smart Healthcare, College of Information, Pukyong National University, Busan, Republic of KoreaMarine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, Republic of Korea; Major of Biomedical Engineering, Division of Smart Healthcare, College of Information, Pukyong National University, Busan, Republic of Korea; Corresponding author. Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, Republic of Korea.Visibility is decreased when fog accumulates on the clear surface of optical devices. It is quite desirable to design the surface with antifogging properties. The current study used a dip coating process to prepare copper-incorporated polyvinyl alcohol (PVA) hydrophilic coating on the hydroxylated glass substrate. The formation of the PVA-Cu complex by the hydroxyl group was determined by FTIR and XPS methods. The surface morphology, adhesion test, wettability behavior, and cytotoxicity were investigated by SEM, cross-cut tape, contact angle measurement, and MTT experiment. By varying the CuCl2 concentration (0.0125–0.0625 M), the durability and adhesion of the coating were improved, as evidenced by its minimal mass loss and water uptake. The optimum coating condition showed a thickness of about 24.0 ± 0.7 μm and a good optical transmittance of over 90 %. Below 0.0375 M, the coating stability and water resistance could not be achieved due to the weak complexation of Cu with the PVA coating. In contrast, the PVA-Cu3 coating (0.0375 M, Cu2+ ions) was identified as an optimized condition for improved antifogging performance due to the effective complexation of Cu with the PVA matrix while maintaining the hydrophilicity and wettability behavior. Furthermore, no cytotoxicity was observed by L929 cell lines in response to the prepared coating. The current study results revealed that the adhesive, hydrophilic PVA-Cux coating with a contact angle of less than 62° might demonstrate strong antifogging properties and find its usage for endoscopic applications.http://www.sciencedirect.com/science/article/pii/S0142941824002964Surface modificationPolyvinyl alcoholWettabilityAntifoggingEndoscope |
| spellingShingle | Sivakumar Bose Jung Seonho Hyun Wook Kang Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfaces Polymer Testing Surface modification Polyvinyl alcohol Wettability Antifogging Endoscope |
| title | Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfaces |
| title_full | Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfaces |
| title_fullStr | Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfaces |
| title_full_unstemmed | Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfaces |
| title_short | Biocompatible and hydrophilic copper-complexed polyvinyl alcohol coating for antifogging surfaces |
| title_sort | biocompatible and hydrophilic copper complexed polyvinyl alcohol coating for antifogging surfaces |
| topic | Surface modification Polyvinyl alcohol Wettability Antifogging Endoscope |
| url | http://www.sciencedirect.com/science/article/pii/S0142941824002964 |
| work_keys_str_mv | AT sivakumarbose biocompatibleandhydrophiliccoppercomplexedpolyvinylalcoholcoatingforantifoggingsurfaces AT jungseonho biocompatibleandhydrophiliccoppercomplexedpolyvinylalcoholcoatingforantifoggingsurfaces AT hyunwookkang biocompatibleandhydrophiliccoppercomplexedpolyvinylalcoholcoatingforantifoggingsurfaces |