Biomimetic synthesis of metal-hydroxyapatite (Au-HAp, Ag-HAp, Au-Ag-HAp): Structural analysis, spectroscopic characterization and biomedical application

被引:72
作者
Kim, Hyehyun [1 ]
Mondal, Sudip [1 ]
Jang, Bian [4 ]
Manivasagan, Panchanathan [1 ]
Moorthy, Madhappan Santha [1 ]
Oh, Junghwan [1 ,2 ,3 ,4 ]
机构
[1] Pukyong Natl Univ, Marine Integrated Bion Res Ctr, Busan 48513, South Korea
[2] Dept Biomed Engn, Busan 48513, South Korea
[3] Ctr Marine Integrated Biotechnol BK21 Plus, Busan 48513, South Korea
[4] Pukyong Natl Univ, Dept Interdisciplinary Program Biomed Mech & Elec, Busan 48513, South Korea
关键词
Metallic nanoparticles; Biomaterial; Biomedical applications; Hydroxyapatite; Biomimetic synthesis; Antimicrobial property; GREEN SYNTHESIS; BIMETALLIC NANOPARTICLES; ANTIBACTERIAL ACTIVITY; GOLD NANOPARTICLES; SILVER; EXTRACT; SHELL; PD;
D O I
10.1016/j.ceramint.2018.08.045
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
An innovative biomimetic approach has been employed for the synthesis of human and environmental friendly nanomaterials for biomedical application. The aim of this research is to study the structural analysis of biomimetic-synthesized gold (Au) and silver (Ag) nanoparticles loaded on pristine hydroxyapatite (HAp) and their potential advances in biomedical applications. The synthesized metal hydroxyapatite nanoparticles' structural and morphological characteristics were studied using X-ray diffraction (XRD), different spectroscopies (UV-vis, DRS, FTIR, zeta potential), BET surface area and pore size analyzer and electron microscopy (FE-TEM, FE-SEM). Biological activity was established using osteoblast-like MG-63 cell line and antibacterial tests with Escherichia coil (E. coli), which is one of the most common bacteria in the human body. Cell cytotoxicity test (MTT assay and fluorescence imaging with AO/PI staining) was conducted with MG-63 cells to study the toxicity of Au-HAp, Ag-HAp, and Au-Ag-HAp (bimetallic) nanoparticles. Antimicrobial studies have shown that all Ag-HAp nano particles have excellent in vitro antibacterial activity with E. coli. The present research investigates the structural stability and biocompatibility of Au-HAp, Ag-HAp, and Au-Ag-HAp nanoparticles, which may be the best materials to repair bone infection (osteomyelitis) and could be useful as a potential scaffold material to prevent postoperative infections.
引用
收藏
页码:20490 / 20500
页数:11
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