| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 | 21권 2호, p.1755 |
| 발표분야 | 생물화공 |
| 제목 | Gold Nanocrystals Stabilized with TRP Peptide for Highly Efficient Reducing Nanocatalysts |
| 초록 | The enzyme as biocatalyst shows high catalytic efficiency and substrate specificity. However, the enzyme has a lot influenced by environmental conditions, for example, pH, temperature, or kinds of solvents. These disadvantages of the enzyme have motivated researchers to develop an artificial enzyme like enzyme-mimetic nanoparticles using novel metal nanoparticles to promote the enzymatic reactions, including peroxidase, reductase, oxidase, etc.. Here, we report the gold nanocrystals stabilized with tyrosine-rich peptide (TRP) for highly efficient reducing nanocatalysts (PEPShell-Au) and optimized their nanocatalytic activity for the p-nitrophenol reduction. We changed the TRP peptide and gold ion concentrations to synthesize various shapes of nanocatalyst. The structure and optical properties of PEPShell-Au were characterized by TEM, UV/Vis, XRD, FT-IR, etc.. Finally, we evaluated nanocatalytic activity of PEPShell-Au for the effective reduction of the p-nitrophenol and calculated their reaction rate (k) and activation energy (Ea). We believe that gold nanocrystals stabilized with TRP peptide can be used for the various catalystic reactions as the unique enzyme-mimetic nanostructures. |
| 저자 | 이상명, 이남훈 |
| 소속 | 강원대 |
| 키워드 | peptide; biomimetic; gold nanoparticle; p-nitrophenol; self-assembly |
| 원문파일 | 초록 보기 |
