광열전환 및 촉매 특성을 가진 금-펩타이드 하이브리드 나노섬유의 합성 및 특성 분석

In this study, gold-peptide hybrid nanofibers were synthesized and their photothermal conversion and catalytic properties were investigated. A peptide sequence capable of binding and reducing gold ions was designed, and it was self-assembled into nanofibers in an aqueous solution. To analyze the self-assembly mechanism, experiments with non-covalent bond inhibitors were conducted, confirming the formation of β-sheet structures. The peptide nanofibers underwent a biomineralization process to synthesize gold nanoparticles on their surface, which were analyzed using UV-Vis spectroscopy, transmission electron microscopy, and X-ray diffraction. The gold-peptide hybrid nanofibers exhibited a reaction rate constant of 36.3 × 10^-3 s^-1 for organic dye degradation and a photothermal conversion efficiency of 11.2%.