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- Title
Bioinspired Unidirectional Silk Fibroin–Silver Compound Nanowire Composite Scaffold via Interface‐Mediated In Situ Synthesis.
- Authors
Xue, Jingzhe; Gao, Huai‐Ling; Wang, Xiang‐Ying; Qian, Kun‐Yu; Yang, Yuan; He, Tao; He, Chuanxin; Lu, Yang; Yu, Shu‐Hong
- Abstract
Bioinspired unidirectional porous materials have emerged as a unique class of scaffolds for the fabrication of macroscopic nanomaterial assemblies. However, these scaffolds usually serve simply as mechanical carriers to support various building blocks. Here, we report that the unidirectional silk fibroin scaffold can not only act as a carrier, but also serve as a controllable multiscale reactor to achieve the in situ synthesis of a Ag3PO4 nanowire network anchored to ordered channels. Both the silk fibroin matrix and the interface play important roles in the nucleation and growth of the Ag3PO4 nanowires. This unidirectional composite scaffold can be used for efficient water disinfection. Furthermore, the facile chemical transformation of Ag3PO4 in the composite scaffold into Ag2S provided an analogous unidirectional composite silk scaffold that displays both efficient solar water evaporation effect and antibacterial activity. It is expected that this method can be extended to fabricate a series of silk‐based unidirectional composite scaffolds with varying functionalities.
- Subjects
WATER disinfection; SEMICONDUCTOR nanowires; NANOWIRES; POROUS materials; DISCONTINUOUS precipitation; SILK fibroin
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 40, p14290
- ISSN
0044-8249
- Publication type
Academic Journal
- DOI
10.1002/ange.201907708