期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 33, 页码 30125-30136出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b07846
关键词
silk fibroin; wool keratin; molecular nanocage; nanobridge; sensor
资金
- NUS AcRF Tier 1 [R-144-000-416-114]
- 111 project [B16029]
- National Nature Science Foundation of China [U1405226]
- Ministry of Education [20130121110018]
- Science and Technology Project of Xiamen City [3502Z20183012]
- Science and Technology Planning Project of Guangdong Province [2018B030331001]
- 1000 Talents Program from the Xiamen University
- National Natural Science Foundation of China [51773171]
- Fujian Provincial Department of Science and Technology [2017J06019]
In this work, we demonstrate the principle of mesoscopic construction of silk fibroin (SF) hybrid materials, which endows the materials with new performance. In implementing this strategy, mediating molecules, wool keratin (WK) molecules, were adopted to in-line synthesize Au nanoparticles (WK@AuNPs), which further create the stable linkage of AuNPs with SF nanofibril networks via templated beta-crystallization. Fourier transform infrared spectroscopy, X-ray diffraction, and atomic force microscopy demonstrate that the mesoscopic hybrid network structure of the hybrid materials is different from neat SF materials, which gives rise to various new performances, that is, long-stable fluorescence emission. As the fluorescence emission can be characteristically annealed by Cu ions, therefore be adopted as the highly selective ion probes. Moreover, as WK@AuNPs are homogeneously connected to SF nanofibril networks, the carbonization of the materials leads to secondary hybrid materials of carbon-Au, where nano-sized Au particles are well distributed in carbonized mesoscopic conductive carbon networks. Such hybrid materials of carbon-Au can be further fabricated into electrochemical (i.e., dopamine) sensors, which are demonstrated to have excellent sensing performance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据