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.
keywords
ASSEMBLED PEPTIDE NANOTUBES; POLYMER COMPOSITE; NANOSTRUCTURES; RECOGNITION; NANOWIRES; INSIGHTS; GROWTH
subject category
Materials Science; Physics
authors
Zelenovskiy, PS; Koryukova, TA; Yuzhakov, VV; Vasilev, SG; Nuraeva, AS; Gunina, EV; Chezganov, DS; Kholkin, AL; Shur, VY
our authors
Andrei Kholkin
Retired Researcher
Pavel Zelenovskii
ResearcherGroups
G2 - Photonic, Electronic and Magnetic Materials
G3 - Electrochemical Materials, Interfaces and Coatings
acknowledgements
The research was carried out using equipment of UCSU "Modern Nanotechnologies" UrFU with the financial support by the grant of the President of the Russian Federation for young scientists (Contract 14.Y30.17.2294-MK) and the Government of the Russian Federation (Resolution 211, Contract 02.A03.21.0006). Part of this work was developed in the scope of project CICECO-Aveiro Institute of Materials (ref FCT UID/CTM/50011/2013), financed by national funds through the FCT/MEC and, when applicable, cofinanced by FEDER under the PT2020 Partnership.