In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys
Non-invasive inactivation of bacteria by photodynamic therapy (PDT) and photothermal therapy (PTT) has been recently concerned for biomaterials. A polymethyltrimethoxysilane (PMTMS)-crosslinked sodium copper chlorophyllin (SCC) coating was prepared on micro arc oxidation (MAO) coated magnesium alloy...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | Corrosion Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667266925000052 |
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| author | Lan-Yue Cui Wei Wang Zhen-Yu Zhang Xue-Wen Jiang Yu-Kun Du Bo Liu Shuo-Qi Li Cheng-Bao Liu Yong-Ming Xi Rong-Chang Zeng |
| author_facet | Lan-Yue Cui Wei Wang Zhen-Yu Zhang Xue-Wen Jiang Yu-Kun Du Bo Liu Shuo-Qi Li Cheng-Bao Liu Yong-Ming Xi Rong-Chang Zeng |
| author_sort | Lan-Yue Cui |
| collection | DOAJ |
| description | Non-invasive inactivation of bacteria by photodynamic therapy (PDT) and photothermal therapy (PTT) has been recently concerned for biomaterials. A polymethyltrimethoxysilane (PMTMS)-crosslinked sodium copper chlorophyllin (SCC) coating was prepared on micro arc oxidation (MAO) coated magnesium alloy AZ31 by one-step dipping method. Results showed that the MAO/PMTMS-SCC coating had high corrosion resistance with two magnitudes decrease in corrosion current density. Profound physical barrier and sealing effects of PMTMS-SCC coating in the initial stage of immersion prevented in-diffusion of Cu2+, thus, primeval renegaded Cu was released to corrosive solution, instead of triggering galvanic corrosion. Antibacterial ratios under irradiation of 808 nm near infrared light against E. coli and S. aureus were 99.6% and 99.1%, respectively, which is ascribed to a triple antibacterial mechanism. Such a composite coating also displays high biocompatibility, which will promote the application of magnesium alloys in biomedical fields. |
| format | Article |
| id | doaj-art-a014b2b3e9d240a6bcbd0daf3c2b6fbe |
| institution | DOAJ |
| issn | 2667-2669 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Corrosion Communications |
| spelling | doaj-art-a014b2b3e9d240a6bcbd0daf3c2b6fbe2025-08-20T03:24:00ZengElsevierCorrosion Communications2667-26692025-06-0118546510.1016/j.corcom.2024.07.003In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloysLan-Yue Cui0Wei Wang1Zhen-Yu Zhang2Xue-Wen Jiang3Yu-Kun Du4Bo Liu5Shuo-Qi Li6Cheng-Bao Liu7Yong-Ming Xi8Rong-Chang Zeng9College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China; Corresponding authors.College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaDepartment of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266590, ChinaShandong Ruikang Safety Evaluation Co., Ltd, Rizhao 276826, ChinaCollege of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaDepartment of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266590, China; Corresponding authors.College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaNon-invasive inactivation of bacteria by photodynamic therapy (PDT) and photothermal therapy (PTT) has been recently concerned for biomaterials. A polymethyltrimethoxysilane (PMTMS)-crosslinked sodium copper chlorophyllin (SCC) coating was prepared on micro arc oxidation (MAO) coated magnesium alloy AZ31 by one-step dipping method. Results showed that the MAO/PMTMS-SCC coating had high corrosion resistance with two magnitudes decrease in corrosion current density. Profound physical barrier and sealing effects of PMTMS-SCC coating in the initial stage of immersion prevented in-diffusion of Cu2+, thus, primeval renegaded Cu was released to corrosive solution, instead of triggering galvanic corrosion. Antibacterial ratios under irradiation of 808 nm near infrared light against E. coli and S. aureus were 99.6% and 99.1%, respectively, which is ascribed to a triple antibacterial mechanism. Such a composite coating also displays high biocompatibility, which will promote the application of magnesium alloys in biomedical fields.http://www.sciencedirect.com/science/article/pii/S2667266925000052Magnesium alloyDegradationCoatingAntibacterial abilityPhoto-responsive behavior |
| spellingShingle | Lan-Yue Cui Wei Wang Zhen-Yu Zhang Xue-Wen Jiang Yu-Kun Du Bo Liu Shuo-Qi Li Cheng-Bao Liu Yong-Ming Xi Rong-Chang Zeng In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys Corrosion Communications Magnesium alloy Degradation Coating Antibacterial ability Photo-responsive behavior |
| title | In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys |
| title_full | In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys |
| title_fullStr | In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys |
| title_full_unstemmed | In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys |
| title_short | In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys |
| title_sort | in vitro degradation photo activated antibacterial activity of sodium copper chlorophyllin crosslinked polysilane composite coating on magnesium alloys |
| topic | Magnesium alloy Degradation Coating Antibacterial ability Photo-responsive behavior |
| url | http://www.sciencedirect.com/science/article/pii/S2667266925000052 |
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