Piezoelectric properties and Young's moduli of diphenylalanine microtubes-oxide nanoparticles composites

authors	Zelenovskiy, PS; Koryukova, TA; Yuzhakov, VV; Vasilev, SG; Nuraeva, AS; Gunina, EV; Chezganov, DS; Kholkin, AL; Shur, VY
nationality	International
journal	FERROELECTRICS
author keywords	Piezoelectric composites; peptide nanotubes; self-assembling; oxide nanoparticles
keywords	ASSEMBLED PEPTIDE NANOTUBES; POLYMER COMPOSITE; NANOSTRUCTURES; RECOGNITION; NANOWIRES; INSIGHTS; GROWTH
abstract	In this work, we investigated the influence of piezoelectric ZnO and nonpiezoelectric SiO2 and TiO2 nanoparticles on the structure and some physical properties of composite structures based on microtubes of diphenylalanine. We demonstrated that all types of used nanoparticles promoted formation of voids and cavities in diphenylalanine microtubes thus reducing the effective Young's modulus and lateral piezoelectric coefficient of the composite. At the same time, embedding of piezoelectric ZnO nanoparticles provides noticeable vertical piezoresponse normally absent in single-component diphenylalanine microtubes. The obtained results demonstrate the ability to control the properties of self-assembling composite biomaterials by nanoparticles.
publisher	TAYLOR & FRANCIS LTD
issn	0015-0193
year published	2018
volume	525
issue	1
beginning page	146
ending page	155
digital object identifier (doi)	10.1080/00150193.2018.1432826
web of science category	Materials Science, Multidisciplinary; Physics, Condensed Matter
subject category	Materials Science; Physics
unique article identifier	WOS:000427943200018