BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light
This study demonstrates the fabrication of ambient light enabled antimicrobial functional fabrics by coating flower-like bismuth oxyhalide i.e. BiOCl₀.₈₇₅Br₀.₁₂₅, with the use of poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) as binders for improved coating robustness and durability. The uni...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2022
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| Online Access: | https://hdl.handle.net/10356/159648 |
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| author | Khin, Mya Mya Bao, Yueping Liang, Yen Nan Setyawati, Magdiel Inggrid Gnayem, Hani Ng, Kee Woei Sasson, Yoel Hu, Xiao |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Khin, Mya Mya Bao, Yueping Liang, Yen Nan Setyawati, Magdiel Inggrid Gnayem, Hani Ng, Kee Woei Sasson, Yoel Hu, Xiao |
| author_sort | Khin, Mya Mya |
| collection | NTU |
| description | This study demonstrates the fabrication of ambient light enabled antimicrobial functional fabrics by coating flower-like bismuth oxyhalide i.e. BiOCl₀.₈₇₅Br₀.₁₂₅, with the use of poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) as binders for improved coating robustness and durability. The uniformity of the microparticles was ensured with simultaneous probe sonication during the stages of crystal nucleation and growth. The polymeric binders not only strongly anchor the particle on the fabric, but also serve as an ultra-thin protective layer on the BiOClBr that mitigates bismuth leaching. The efficacy of inhibiting bacteria was investigated over the BiOClBr-coated fabrics i.e. cotton and polyester, and the results showed that the coated fabrics could effectively inhibit both Gram-positive and Gram-negative bacteria, i.e. S. aureus and E. coli. In comparison with fabrics coated with other photocatalytic materials including bismuth oxide (Bi₂O₃) and zinc oxide (ZnO), an exceptionally better antimicrobial efficacy was observed for BiOClBr-coated fabrics. The BiOClBr-coated cotton showed ∼5.0 and ∼6.8 times higher disinfection efficacy towards E. coli compared to that of ZnO and Bi₂O₃-coated cotton with the same particle weight percentage, respectively. Further elucidation of the probable mechanism by BiOClBr-coated fabrics is related to the excess amount of reactive oxygen species (ROS). Overall, BiOClBr has been shown to be a promising material to fabricate cost-effective antimicrobial functional surfaces for both environmental and biomedical applications e.g. protective laboratory and factory clothing. |
| first_indexed | 2024-10-01T05:18:42Z |
| format | Journal Article |
| id | ntu-10356/159648 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:18:42Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1596482022-06-28T08:51:14Z BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light Khin, Mya Mya Bao, Yueping Liang, Yen Nan Setyawati, Magdiel Inggrid Gnayem, Hani Ng, Kee Woei Sasson, Yoel Hu, Xiao School of Materials Science and Engineering Nanyang Environment and Water Research Institute Engineering::Materials Biofilm Resistant Antimicrobial This study demonstrates the fabrication of ambient light enabled antimicrobial functional fabrics by coating flower-like bismuth oxyhalide i.e. BiOCl₀.₈₇₅Br₀.₁₂₅, with the use of poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) as binders for improved coating robustness and durability. The uniformity of the microparticles was ensured with simultaneous probe sonication during the stages of crystal nucleation and growth. The polymeric binders not only strongly anchor the particle on the fabric, but also serve as an ultra-thin protective layer on the BiOClBr that mitigates bismuth leaching. The efficacy of inhibiting bacteria was investigated over the BiOClBr-coated fabrics i.e. cotton and polyester, and the results showed that the coated fabrics could effectively inhibit both Gram-positive and Gram-negative bacteria, i.e. S. aureus and E. coli. In comparison with fabrics coated with other photocatalytic materials including bismuth oxide (Bi₂O₃) and zinc oxide (ZnO), an exceptionally better antimicrobial efficacy was observed for BiOClBr-coated fabrics. The BiOClBr-coated cotton showed ∼5.0 and ∼6.8 times higher disinfection efficacy towards E. coli compared to that of ZnO and Bi₂O₃-coated cotton with the same particle weight percentage, respectively. Further elucidation of the probable mechanism by BiOClBr-coated fabrics is related to the excess amount of reactive oxygen species (ROS). Overall, BiOClBr has been shown to be a promising material to fabricate cost-effective antimicrobial functional surfaces for both environmental and biomedical applications e.g. protective laboratory and factory clothing. 2022-06-28T08:51:13Z 2022-06-28T08:51:13Z 2021 Journal Article Khin, M. M., Bao, Y., Liang, Y. N., Setyawati, M. I., Gnayem, H., Ng, K. W., Sasson, Y. & Hu, X. (2021). BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light. Journal of Materials Chemistry B, 9(13), 3079-3087. https://dx.doi.org/10.1039/D0TB02835E 2050-750X https://hdl.handle.net/10356/159648 10.1039/D0TB02835E 13 9 3079 3087 en Journal of Materials Chemistry B © 2021 The Royal Society of Chemistry. All rights reserved. |
| spellingShingle | Engineering::Materials Biofilm Resistant Antimicrobial Khin, Mya Mya Bao, Yueping Liang, Yen Nan Setyawati, Magdiel Inggrid Gnayem, Hani Ng, Kee Woei Sasson, Yoel Hu, Xiao BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light |
| title | BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light |
| title_full | BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light |
| title_fullStr | BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light |
| title_full_unstemmed | BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light |
| title_short | BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light |
| title_sort | bioclbr coated fabrics with enhanced antimicrobial properties under ambient light |
| topic | Engineering::Materials Biofilm Resistant Antimicrobial |
| url | https://hdl.handle.net/10356/159648 |
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