Local piezoresponse and polarization switching in nucleobase thymine microcrystals

Files in This Item:
File Description SizeFormat 
Bdikin_et_al_J_Appl_Phys_2015.pdf5.02 MBAdobe PDFDownload
Title: Local piezoresponse and polarization switching in nucleobase thymine microcrystals
Authors: Bdikin, Igor
Heredia, Alejandro
Neumayer, Sabine M.
Rodriguez, Brian J.
et al.
Permanent link: http://hdl.handle.net/10197/7195
Date: 2015
Online since: 2015-11-10T13:27:33Z
Abstract: Thymine (2-oxy-4-oxy-5 methyl pyrimidine) is one of the four nucleobases of deoxyribonucleic acid (DNA). In the DNA molecule, thymine binds to adenine via two hydrogen bonds, thus stabilizing the nucleic acid structure and is involved in pairing and replication. Here, we show that synthetic thymine microcrystals grown from the solution exhibit local piezoelectricity and apparent ferroelectricity, as evidenced by nanoscale electromechanical measurements via Piezoresponse Force Microscopy. Our experimental results demonstrate significant electromechanical activity and polarization switchability of thymine, thus opening a pathway for piezoelectric and ferroelectric-based applications of thymine and, perhaps, of other DNA nucleobase materials. The results are supported by molecular modeling of polarization switching under an external electric field.
Funding Details: European Commission - Seventh Framework Programme (FP7)
Type of material: Journal Article
Publisher: American Institute of Physics
Journal: Journal of Applied Physics
Volume: 118
Copyright (published version): 2015 AIP Publishing LLC
Keywords: PolarizationAtomic force microscopyPiezoelectric fieldsDNAPiezoelectric materials
DOI: 10.1063/1.4927806
Language: en
Status of Item: Peer reviewed
Appears in Collections:Conway Institute Research Collection
Physics Research Collection

Show full item record

Citations 50

Last Week
Last month
checked on Feb 19, 2019

Download(s) 20

checked on May 25, 2018

Google ScholarTM



This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.