Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing
Marine fouling is an age-old problem which continues to plague the maritime industry. The fouling process progresses from an initial formation of bacterial biofilm on unprotected surfaces. Silver is a well-known antimicrobial agent which is well-tolerated by mammals, while titania nanotubes have enh...
| Main Authors: | , , , , , , |
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| Format: | Article |
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Elsevier
2017
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| _version_ | 1825721203071909888 |
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| author | Yee, M.S.L. Khiew, P.S. Lim, S.S. Chiu, W.S. Tan, Y.F. Kok, Y.Y. Leong, C.O. |
| author_facet | Yee, M.S.L. Khiew, P.S. Lim, S.S. Chiu, W.S. Tan, Y.F. Kok, Y.Y. Leong, C.O. |
| author_sort | Yee, M.S.L. |
| collection | UM |
| description | Marine fouling is an age-old problem which continues to plague the maritime industry. The fouling process progresses from an initial formation of bacterial biofilm on unprotected surfaces. Silver is a well-known antimicrobial agent which is well-tolerated by mammals, while titania nanotubes have enhanced properties due to a greater specific surface area on the inner and outer surfaces of the tubular structure. A novel 2-step hydrothermal synthesis of a silver-titania nanotube (Ag/TNT) composite material is presented. The morphology, particle size, chemical content, crystal structure, optical properties and surface area were systematically characterized. Determination of biofilm inhibitory properties revealed that Ag/TNT with the lowest silver content (0.95 wt% Ag) decorated with Ag nanoparticles of ca. 3 nm reduced biofilm formation of marine bacterium Halomonas pacifica by 98% compared to pure titania nanotubes and bulk silver alone. Growth inhibition of marine microalgae Dunaliella tertiolecta and Isochrysis sp. were also observed. |
| first_indexed | 2024-03-06T05:46:48Z |
| format | Article |
| id | um.eprints-18944 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:46:48Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-189442019-02-11T09:00:23Z http://eprints.um.edu.my/18944/ Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing Yee, M.S.L. Khiew, P.S. Lim, S.S. Chiu, W.S. Tan, Y.F. Kok, Y.Y. Leong, C.O. QC Physics R Medicine TA Engineering (General). Civil engineering (General) Marine fouling is an age-old problem which continues to plague the maritime industry. The fouling process progresses from an initial formation of bacterial biofilm on unprotected surfaces. Silver is a well-known antimicrobial agent which is well-tolerated by mammals, while titania nanotubes have enhanced properties due to a greater specific surface area on the inner and outer surfaces of the tubular structure. A novel 2-step hydrothermal synthesis of a silver-titania nanotube (Ag/TNT) composite material is presented. The morphology, particle size, chemical content, crystal structure, optical properties and surface area were systematically characterized. Determination of biofilm inhibitory properties revealed that Ag/TNT with the lowest silver content (0.95 wt% Ag) decorated with Ag nanoparticles of ca. 3 nm reduced biofilm formation of marine bacterium Halomonas pacifica by 98% compared to pure titania nanotubes and bulk silver alone. Growth inhibition of marine microalgae Dunaliella tertiolecta and Isochrysis sp. were also observed. Elsevier 2017 Article PeerReviewed Yee, M.S.L. and Khiew, P.S. and Lim, S.S. and Chiu, W.S. and Tan, Y.F. and Kok, Y.Y. and Leong, C.O. (2017) Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 520. pp. 701-711. ISSN 0927-7757, DOI https://doi.org/10.1016/j.colsurfa.2017.02.034 <https://doi.org/10.1016/j.colsurfa.2017.02.034>. http://dx.doi.org/10.1016/j.colsurfa.2017.02.034 doi:10.1016/j.colsurfa.2017.02.034 |
| spellingShingle | QC Physics R Medicine TA Engineering (General). Civil engineering (General) Yee, M.S.L. Khiew, P.S. Lim, S.S. Chiu, W.S. Tan, Y.F. Kok, Y.Y. Leong, C.O. Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing |
| title | Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing |
| title_full | Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing |
| title_fullStr | Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing |
| title_full_unstemmed | Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing |
| title_short | Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing |
| title_sort | enhanced marine antifouling performance of silver titania nanotube composites from hydrothermal processing |
| topic | QC Physics R Medicine TA Engineering (General). Civil engineering (General) |
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