<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Deng, Y. T.</style></author><author><style face="normal" font="default" size="100%">McKinney, J.</style></author><author><style face="normal" font="default" size="100%">Markelz, A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Deuteration and Inhibitor Binding Dependence of Protein Collective Vibrations</style></title><secondary-title><style face="normal" font="default" size="100%">Biophysical Journal</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Biophys. J.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biophysics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Feb</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">116</style></volume><pages><style face="normal" font="default" size="100%">488A-488A</style></pages><isbn><style face="normal" font="default" size="100%">0006-3495</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><work-type><style face="normal" font="default" size="100%">Meeting Abstract</style></work-type><accession-num><style face="normal" font="default" size="100%">WOS:000460779802452</style></accession-num><notes><style face="normal" font="default" size="100%">ISI Document Delivery No.: HO2XG&lt;br/&gt;Times Cited: 0&lt;br/&gt;Cited Reference Count: 2&lt;br/&gt;Cited References: &lt;br/&gt;     Mahajan S, 2015, ARCH BIOCHEM BIOPHYS, V567, P59, DOI 10.1016/j.abb.2014.12.020&lt;br/&gt;     Niessen KA, 2017, BIOPHYS J, V112, P933, DOI 10.1016/j.bpj.2016.12.049&lt;br/&gt;Deng, Yanting Mckinney, Jeffrey Markelz, Andrea&lt;br/&gt;63rd Annual Meeting of the Biophysical-Society&lt;br/&gt;Mar 02-06, 2019&lt;br/&gt;Baltimore, MD&lt;br/&gt;Biophys Soc&lt;br/&gt;&lt;br/&gt;8&lt;br/&gt;Cell press&lt;br/&gt;Cambridge&lt;br/&gt;1542-0086&lt;br/&gt;1</style></notes><auth-address><style face="normal" font="default" size="100%">[Deng, Yanting|Mckinney, Jeffrey|Markelz, Andrea] SUNY Buffalo, Phys, Buffalo, NY USA.</style></auth-address></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Deng, Yanting</style></author><author><style face="normal" font="default" size="100%">Xu, Mengyang</style></author><author><style face="normal" font="default" size="100%">Niessen, Katherine A.</style></author><author><style face="normal" font="default" size="100%">Schmidt, Marius</style></author><author><style face="normal" font="default" size="100%">Markelz, Andrea G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Direct Measurements of the Long-Range Collective Vibrations of Photoactive Yellow Protein</style></title><secondary-title><style face="normal" font="default" size="100%">30th Anniversary Symposium of The Protein Society</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/10.1002/pro.3026</style></url></web-urls></urls><pub-location><style face="normal" font="default" size="100%">Baltimore MD</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;Long-range collective vibrations are thought to be crucial to protein functions. In the case of photoactive protein family, modeling suggests the intramolecular vibrations provide an efficient means of energy relaxation[1], feedback for enhancement of chromophore vibrations that promote structural transitions[2] and can assist in charge energy transfer[3]. As a paradigm of this family, photoactive yellow protein (PYP) is a cytoplasmic photocycling protein related to negative phototactic response to blue light in purple photosynthetic bacteria. PYP has a p-coumaric acid chromophore binding to the cysteine residue via a thioester bond, whose vibrations were found to overlap calculated vibrations of the protein scaffold. Using our unique technique of anisotropic terahertz microscopy(ATM)[4], we measure the intramolecular vibrations for PYP for the first time, including cycling between ground and blue shift (pB) states. Room temperature ATM measurements are performed in the dark and with continuous wave illumination at 488nm, resulting in a steady pB state with approximately 5% population conversion. In pB state, we find an overall decrease in the strength of resonant band in frequency range of 30-60 cm-1. Our calculated spectra using quasi-harmonic analysis indicate that our measurements are dominated by the protein vibrations, rather than the pCA chromophore, allowing us to characterize how the scaffold dynamics changes with functional states and mutations.&lt;/p&gt;

&lt;p&gt;1. Levantino, M., et al. Nat Commun, 2015. 6.&lt;/p&gt;

&lt;p&gt;2. Mataga, N., et al. Chem. Phys. Lett., 2002. 352(3-4): p. 220-225.&lt;/p&gt;

&lt;p&gt;3. Fokas, A.S., et al. Photosynth. Res., 2014. 122&lt;/p&gt;
</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Markelz, A. G.</style></author><author><style face="normal" font="default" size="100%">Chen, J.-Y.</style></author><author><style face="normal" font="default" size="100%">Knab, J. R.</style></author><author><style face="normal" font="default" size="100%">He, Y.</style></author><author><style face="normal" font="default" size="100%">Ye, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Development of Tagless Biosensors for Detecting the Presence of Pathogens</style></title><secondary-title><style face="normal" font="default" size="100%">Terahertz Frequency Detection and Identification of Materials and Objects</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><publisher><style face="normal" font="default" size="100%">Springer</style></publisher><pub-location><style face="normal" font="default" size="100%">Dordrecht, The Netherlands</style></pub-location><volume><style face="normal" font="default" size="100%">ed X.-C. Zhang, R. E. Miles, H. Eisele and A. Krotkus</style></volume><pages><style face="normal" font="default" size="100%">123-134</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><section><style face="normal" font="default" size="100%">9</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wolpert, D</style></author><author><style face="normal" font="default" size="100%">Korolev, K</style></author><author><style face="normal" font="default" size="100%">Sachs, S</style></author><author><style face="normal" font="default" size="100%">Knab, J</style></author><author><style face="normal" font="default" size="100%">Cox, W</style></author><author><style face="normal" font="default" size="100%">Cerne, J</style></author><author><style face="normal" font="default" size="100%">Markelz, A.G</style></author><author><style face="normal" font="default" size="100%">Zhao, T</style></author><author><style face="normal" font="default" size="100%">Ramesh, R</style></author><author><style face="normal" font="default" size="100%">Moeckly, B.H</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Direct measurements of optical phonons in SrTiO3 nanosystems</style></title><secondary-title><style face="normal" font="default" size="100%">Physica E: Low-dimensional Systems and Nanostructures</style></secondary-title><short-title><style face="normal" font="default" size="100%">Physica E: Low-dimensional Systems and Nanostructures</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ferroelectrics</style></keyword><keyword><style  face="normal" font="default" size="100%">Finite size</style></keyword><keyword><style  face="normal" font="default" size="100%">Mode softening</style></keyword><keyword><style  face="normal" font="default" size="100%">phonons</style></keyword><keyword><style  face="normal" font="default" size="100%">Strontium titanate</style></keyword><keyword><style  face="normal" font="default" size="100%">Terahertz</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2003</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2003/07/01/</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S1386947703003059</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">19</style></volume><pages><style face="normal" font="default" size="100%">236 - 239</style></pages><isbn><style face="normal" font="default" size="100%">1386-9477</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We use terahertz time domain spectroscopy to examine finite size effects on the optical phonon modes in SrTiO3 thin films. In temperature-dependent measurements we find a near absence of mode softening in the TO1 phonon frequency. Furthermore we see an increase in the soft mode frequency with reduced thickness. Both of these results correlate well with the reduced dielectric response observed for nanoscale ferroelectric systems.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Asmar, N. G.</style></author><author><style face="normal" font="default" size="100%">Markelz, A. G.</style></author><author><style face="normal" font="default" size="100%">Gwinn, E. G.</style></author><author><style face="normal" font="default" size="100%">Hopkins, P. F.</style></author><author><style face="normal" font="default" size="100%">Gossard, A. C.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DC TRANSPORT IN INTENSE, INPLANE TERAHERTZ ELECTRIC-FIELDS IN AL(X)GA(1-X)AS HETEROSTRUCTURES AT 300-K</style></title><secondary-title><style face="normal" font="default" size="100%">Solid-State Electronics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1994</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Apr-Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">4-6</style></number><volume><style face="normal" font="default" size="100%">37</style></volume><pages><style face="normal" font="default" size="100%">693-695</style></pages><isbn><style face="normal" font="default" size="100%">0038-1101</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We report 300 K studies of the dependence of the in-plane, d.c. conductivity, sigma(d.c.) (E(omega)), of a quasi 2D electron gas on the amplitude E(omega) and frequency of intense, far-infrared fields (omega/2pi = 0.24-3.5 THz). We measure sigma(d.c.) (E(omega) parallel-to E(d.c.)), where E(d.c.) is a small sensing field, and observe a monotonic decrease in sigma(d.c.) with increasing E(omega). Although a simple scaling ansatz collapses the measured sigma(d.c.) (E(omega)) data onto a single curve for frequencies from 0.25-3.45 THz (at low to moderate scaled fields), the decrease in conductivity is substantially more rapid than expected from comparison to similar data taken by Masselink et al. [Solid-St. Electron. 31, 337 (1988)] at 35 GHz. We tentatively attribute this difference to effects of a high-frequency modulation in the electron temperature.&lt;/p&gt;</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:A1994NE79600042</style></accession-num><notes><style face="normal" font="default" size="100%">Markelz, Andrea/0000-0003-0443-4319&lt;br/&gt;6th International Conference on Modulated Semiconductor Structures&lt;br/&gt;Aug 23-27, 1993&lt;br/&gt;Garmisch partenkir, germany&lt;br/&gt;Tech univ munchen, walter schottky inst&lt;br/&gt;1</style></notes></record></records></xml>