Converse piezoelectricity and ferroelectricity in crystals of lysozyme protein revealed by piezoresponse force microscopy
authors Stapleton, A; Ivanov, MS; Noor, MR; Silien, C; Gandhi, AA; Soulimane, T; Kholkin, AL; Tofail, SAM
nationality International
journal FERROELECTRICS
keywords EGG-WHITE LYSOZYME; NANOSCALE; FIBRILS; BONE
abstract This work investigates the converse piezoelectric effect in crystals of the protein lysozyme using Piezoresponse Force Microscopy (PFM) in contact and Hybrid modes. The mechanical properties of lysozyme crystals were mapped at the surface by means of Hybrid mode. In addition, ferroelectric loops were measured by the switching-spectroscopy PFM method (SS-PFM). We explore these findings using crystallographic principles and propose that the presence of defects within the crystal may lower the symmetry of lysozyme to a polar one. Our findings point towards the potential of exploiting lysozyme and other proteins in technical applications, especially those in which biocompatibility is critical.
publisher TAYLOR & FRANCIS LTD
issn 0015-0193
year published 2018
volume 525
issue 1
beginning page 135
ending page 145
digital object identifier (doi) 10.1080/00150193.2018.1432825
web of science category Materials Science, Multidisciplinary; Physics, Condensed Matter
subject category Materials Science; Physics
unique article identifier WOS:000427943200017
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  impact metrics
journal impact factor (jcr 2016): 0.551
5 year journal impact factor (jcr 2016): 0.534
category normalized journal impact factor percentile (jcr 2016): 10.014
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