Journal article
Direct observation of binding stress-induced crystalline orientation change in piezoelectric plate sensors
Journal of applied physics, v 119(12), p124512
28 Mar 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We have examined the mechanism of the detection resonance frequency shift, Delta f/f, of a 1370 mu m long and 537 mu m wide [Pb(Mg1/3Nb2/3)O-3](0.65)[PbTiO3](0.35) (PMN-PT) piezoelectric plate sensor (PEPS) made of a 8-mu m thick PMN-PT freestanding film. The Df/f of the PEPS was monitored in a three-step binding model detections of (1) binding of maleimide-activated biotin to the sulfhydryl on the PEPS surface followed by (2) binding of streptavidin to the bound biotin and (3) subsequent binding of biotinylated probe deoxyribonucleic acid to the bound streptavidin. We used a PMN-PT surrogate made of the same 8-mu m thick PMN-PT freestanding film that the PEPS was made of but was about 1 cm in length and width to carry out crystalline orientation study using X-ray diffraction (XRD) scan around the (002)/(200) peaks after each of the binding steps. The result of the XRD studies indicated that each binding step caused the crystalline orientation of the PMN-PT thin layer to switch from the vertical (002) orientation to the horizontal (200) orientation, and most of the PEPS detection Df/f was due to the change in the lateral Young's modulus of the PMN-PT thin layer as a result of the crystalline orientation change. (C) 2016 AIP Publishing LLC.
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Details
- Title
- Direct observation of binding stress-induced crystalline orientation change in piezoelectric plate sensors
- Creators
- Wei Wu - Drexel UniversityWei-Heng Shih - Drexel UniversityWan Y. Shih - Drexel University
- Publication Details
- Journal of applied physics, v 119(12), p124512
- Publisher
- American Institute of Physics
- Number of pages
- 7
- Grant note
- Nanotechnology Institute of Benjamin Franklin Partnership of Southeastern Pennsylvania 1R41AI112224; 1R41AI120445 / National Institutes of Health; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA Coulter-Drexel Translational Research Partnership grant
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems; Materials Science and Engineering
- Web of Science ID
- WOS:000373602000040
- Scopus ID
- 2-s2.0-84963631917
- Other Identifier
- 991019167540904721
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- Web of Science research areas
- Physics, Applied