期刊
ACS NANO
卷 10, 期 1, 页码 421-428出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.5b05213
关键词
self-assembly; protein nanowires; light-harvesting; core-cross-linked micelles; electrostatic interactions
类别
资金
- National Natural Science Foundation of China [21234004, 21420102007, 21221063, 21574056]
- 111 Project [B06009]
- Chang Jiang Scholars Program of China
Organic nanoparticle induced self-assembly of proteins with periodic nanostructures is a promising and burgeoning strategy to develop functional biomimetic nanomaterials. Cricoid proteins afford monodispersed and well-defined hollow centers, and can be used to multi-valently interact with geometrically symmetric nanoparticles to form one-dimensional protein nanoarrays. Herein, we report that core-cross-linked micelles can direct cricoid stable protein one (SP1) to self-assembling nanowires through multiple electrostatic interactions. One micelle can act as an Organic nanoparticle to interact with two central concaves of SP1 in an opposite orientation to form a sandwich structure, further controlling the assembly direction to supramolecular protein nanowires. The reported versatile supramolecular scaffolds can be optionally manipulated to develop multifunctional integrated or synergistic biomimetic nanomaterials. Artificial light-harvesting nanowires are further developed to mimic the energy transfer process of photosynthetic bacteria for their structural similarity, by means of labeling donor and acceptor chromophores to SP1 rings and spherical micelles, respectively. The absorbing energy can be transferred within the adjacent donors around the ring and shuttling the collected energy to the nearby acceptor chromophore. The artificial light-harvesting nanowires are designed by mimicking the structural characteristic of natural LH-2 complex, which are meaningful in exploring the photosynthesis process in vitro.
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