한국진공학회:학술대회논문집 (Proceedings of the Korean Vacuum Society Conference)
- 한국진공학회 2016년도 제50회 동계 정기학술대회 초록집
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- Pages.380.1-380.1
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- 2016
Antioxidative Activity of Galic acid-functionalized ZnO Nanoparticles
- Choi, Kyong-Hoon (Plasma Bioscience Research Center and Department of Electrical & Biological Physics, Kwangwoon University) ;
- Kim, Ho-Joong (Department of Chemistry, Chosun University) ;
- Park, Bong Joo (Plasma Bioscience Research Center and Department of Electrical & Biological Physics, Kwangwoon University)
- 발행 : 2016.02.17
초록
In this study, we report a novel antioxidant ZnO nanoparticle that is newly designed and prepared by simple surface modification process. Antioxidative functionality is provided by the immobilization of antioxidant of 3,4,5-trihydroxybenzoic acid (galic acid, GA) onto the surface of ZnO nanoparticles. Microstructure and physical properties of the ZnO@GA nanoparticles were investigated by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), infrared spectroscopy (IR) and steady state spectroscopic methods. The antioxidative activity of ZnO@GA was also evaluated using ABTS (3-ethylbenzothiazoline-6-sulfonic acid) radical cation decolorization assay. Notably, ZnO@GA showed strong antioxidative activity in spite of the conjugation process of GA on the ZnO surface. These results provide that GA-coating onto ZnO nanoparticles may offer an intriguing potential for biomedical devices as well as nanomaterials.