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Proceedings Paper

Measuring phonons in protein crystals
Author(s): Gheorghe Acbas; Katherine A. Niessen; Deepu K. George; Edward Snell; A. G. Markelz
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Paper Abstract

Using Terahertz near field microscopy we find orientation dependent narrow band absorption features for lysozyme crystals. Here we discuss identification of protein collective modes associated with the observed features. Using normal mode calculations we find good agreement with several of the measured features, suggesting that the modes arise from internal molecular motions and not crystal phonons. Such internal modes have been associated with protein function.

Paper Details

Date Published: 14 March 2013
PDF: 4 pages
Proc. SPIE 8623, Ultrafast Phenomena and Nanophotonics XVII, 862305 (14 March 2013); doi: 10.1117/12.2006275
Show Author Affiliations
Gheorghe Acbas, Univ. at Buffalo, SUNY (United States)
Katherine A. Niessen, Univ. at Buffalo, SUNY (United States)
Deepu K. George, Univ. at Buffalo, SUNY (United States)
Edward Snell, Univ. at Buffalo, SUNY (United States)
Hauptman Woodward Medical Research Institute (United States)
A. G. Markelz, Univ. at Buffalo, SUNY (United States)


Published in SPIE Proceedings Vol. 8623:
Ultrafast Phenomena and Nanophotonics XVII
Markus Betz; Abdulhakem Y. Elezzabi; Jin-Joo Song; Kong-Thon Tsen, Editor(s)

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