期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 27, 页码 7772-7776出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201509953
关键词
2D materials; amyloid nanostructures; liquid exfoliation; molybdenum; supramolecular chemistry
资金
- DST, India through INSPIRE Grant [IFA12-CH-64]
Herein, we report the efficient exfoliation of MoS2 in aqueous medium by short cationic peptide nanotubes featuring the nucleating core (17)LVFFA(21) of beta-amyloid (A beta 1-42), a sequence associated with Alzheimer's disease. The role of morphology, length, and nature of the amyloid surface on exfoliation/dispersions of MoS2 were investigated through specific mutations of the amyloid sequences. Notably, owing to the properties of both the constituents, self-assembled soft nanostructures and MoS2, the hybrid dispersions responded reversibly to various stimuli, including temperature, pH, and light. Addition of a protease resulted in loss of the dispersions, which are otherwise stable for months at ambient conditions. The design flexibility of the peptide sequences, along with the stimuli-responsiveness and biodegradability, can complement the applications of MoS2 in diverse fields.
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