Preparation of TiO2 nanocapsules for loading and release of antimicrobial triclosan molecules

Preparation of TiO2 nanocapsules for loading and release of antimicrobial triclosan molecules

Well-defined nanosized hollow TiO2 capsules with the diameter of 80-100nm were prepared through aging dissolvation technique for the first time to remove the templates of core-shell composite spheres. The as-prepared TiO2 nanocapsules were characterized by TEM. Furthermore, the antimicrobial triclos...

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Veröffentlicht in:Materials letters 2007-05, Vol.61 (13), p.2757-2760
Hauptverfasser: Pei, Ai-Hua, Shen, Zheng-Wu, Yang, Gui-Sheng
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container_title Materials letters
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creator Pei, Ai-Hua
Shen, Zheng-Wu
Yang, Gui-Sheng
description Well-defined nanosized hollow TiO2 capsules with the diameter of 80-100nm were prepared through aging dissolvation technique for the first time to remove the templates of core-shell composite spheres. The as-prepared TiO2 nanocapsules were characterized by TEM. Furthermore, the antimicrobial triclosan was loaded into these nanocapsules. The loading of triclosan was determined by TGA-DTA, and the loading amount is about 29wt.%. The release behavior of the entrapped triclosan molecular was investigated by UV-visible absorption (UV-vis). There is a moiety of triclosan that was loaded inside the TiO2 shell. The results indicated that this drug release system has a sustained-release property. Such antimicrobial-loaded TiO2 nanocapsules can be used as additive in household and personal care chemical industry.
doi_str_mv 10.1016/j.matlet.2006.04.123
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title Preparation of TiO2 nanocapsules for loading and release of antimicrobial triclosan molecules
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