The Effect of Water Molecules on Elastic and Piezoelectric Properties of Diphenylalanine Microtubes


The variation of elastic and electromechanical properties of microtubes of diphenylalanine dipeptide as a function of the degree of filing of nanochannels by water molecules is reported in this paper. Quantum chemical calculations reveal different contributions of water layers in the microtubes to Young's modulus and the effective piezoelectric coefficient. The application of diphenylalanine microtubes in micro-electromechanical systems is also discussed.




Engineering; Physics


Zelenovskiy, P; Yuzhakov, V; Nuraeva, A; Kornev, M; Shur, VY; Kopyl, S; Kholkin, A; Vasilev, S; Tofail, SAM



Experimental part of this work was supported by Russian Science Foundation (Grant No. 18-72-00052). The equipment of Ural Centre for Shared Use Modern Nanotechnology Ural Federal University was used. Part of this work was developed within the scope of the project CICECO-Aveiro Institute of Materials, refs. UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the FCT/MEC. S.K., P.Z. and A.K. were partly supported by FCT - Fundacao para a Ciencia e a Tecnologia, I.P. through the projects BioPiezo - PTDC/CTM-CTM/31679/2017 (CENTRO-01-0145-FEDER-031679) and TUBITAK/0006/2014. Part of this work was funded by national funds (OE), through FCT, in the scope of the framework contract foreseen in the numbers 4, 5, and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19. S.V., A.K. and S.A.M.T. are grateful to European Commission Erasmus International Credit Mobility (ICM) Program between University of Limerick (Ireland) and Ural Federal University (Ekaterinburg, Russian Federation).

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