DataVXACS Applied Materials & InterfacesPaper
journal article·2016-07-06

Antibacterial Activity of Silver Doped Titanate Nanowires on Ti Implants

Ziqiang Xu, Man Li, Xia Li, Xiangmei Liu, Fei Ma, Shuilin Wu, K. W. K. Yeung, Yong Han, Paul K. Chu

ACS Applied Materials & Interfaces· Volume 8· Issue 26
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Source abstract

Abstract

A nanostructured film composed of one-dimensional titanate nanowires (TNWs) was employed as a carrier of Ag nanoparticles and chitosan (CS) to improve the surface antibacterial activity and biocompatibility of titanium implants. A TNWs film was produced on a Ti substrate by an alkali hydrothermal reaction and subsequently doped by Ag nanoparticles through an ultraviolet light chemical reduction. The CS nanofilm was deposited on the Ag nanoparticles through a spin-assisted layer by layer assembly method. The results disclosed that Ag nanoparticles were successfully carried by TNWs and homogeneously distributed on the entire surface. Moreover, a CS nanofilm was also successfully deposited on the Ag nanoparticles. Antibacterial tests showed that the samples modified with a higher initial concentration of AgNO3 solution exhibited better antibacterial activity, and that a CS nanofilm could further improve the antibacterial activity of the TNWs. Cell viability and ALP tests revealed that the release of Ag(+) was detrimental for the growth, proliferation, and differentiation of MC3T3, and that CS could lower the negative effects of Ag gradually as the incubation time increased.
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Research context

NanomaterialsBiomaterials

OpenAlex topics: Bone Tissue Engineering Materials · Graphene and Nanomaterials Applications · Nanoparticles: synthesis and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China

State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi'an, Shaanxi, 710049, China

Division of Spine Surgery, Department of Orthopaedics & Traumatology, Li KaShing Faculty of Medicine, The University of Hong Kong, Hong Kong, 999077, China

Department of Physics & Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, China

Funding

Research Grants Council, University Grants Committee, Hong Kong · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Hubei Province · National Natural Science Foundation of China · State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University

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