Journal
SMALL
Volume 12, Issue 19, Pages 2575-2579Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201600230
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Funding
- National Natural Science Foundation of China [21522307, 21473208, 91434103]
- Talent Fund of the Recruitment Program of Global Youth Experts
- Chinese Academy of Sciences (CAS) [2015VTA033]
- Center for Mesoscience Institute of Process Engineering [COM2015A005]
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The formation of ultralong peptide crystalline nanobelts using a solvothermal approach from a di-phenylalanine gel within 10 min, where the self-assembly process is accelerated by several orders of magnitude compared with the month-long glutaraldehyde induction method previously reported, has been demonstrated. The solvothermal treatment can facilitate the phase separation of di-phenylalanine gels while speeding up the kinetics of the intramolecular cyclization reaction and concomitant crystallization. Moreover, the modulation effect of formaldehyde as an additive is revealed, and that a small amount of formaldehyde leads to thicker crystalline platelets capable of curved optical waveguiding that can potentially be applied in advanced bio-optical and optoelectronic devices, a rare feat with peptide-based crystals.
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