Characterization of the Strongly Coupled, Low-Frequency Vibrational Modes of the Special Pair of Photosynthetic Reaction Centers via Isotopic Labeling of the Cofactors

1997 ◽  
Vol 119 (2) ◽  
pp. 415-426 ◽  
Author(s):  
Kazimierz Czarnecki ◽  
James R. Diers ◽  
Veeradej Chynwat ◽  
Joy P. Erickson ◽  
Harry A. Frank ◽  
...  
Keyword(s):  
Low Frequency ◽  
Isotopic Labeling ◽  
Reaction Centers ◽  
Vibrational Modes ◽  
Photosynthetic Reaction Centers ◽  
Strongly Coupled ◽  
Special Pair

Near-Infrared Resonance Raman Spectroscopy of the Special Pair and the Accessory Bacteriochlorophylls in Photosynthetic Reaction Centers

1994 ◽  
Vol 98 (23) ◽  
pp. 6023-6029 ◽  
Author(s):  
Nerine J. Cherepy ◽  
Andrew P. Shreve ◽  
Laura J. Moore ◽  
Stefan Franzen ◽  
Steven G. Boxer ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Special Pair

Characterization of photosynthetic reaction centers by surface-enhanced resonance Raman scattering

1993 ◽  
Author(s):  
George D. Chumanov ◽  
Therese M. Cotton ◽  
Chengli Zhou ◽  
Dale Gaul ◽  
Rafael Picorel ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Resonance Raman ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Resonance Raman Scattering ◽  
Surface Enhanced

Low-Frequency Infrared Spectra of Aliphatic Monocarboxylic Acids

1968 ◽  
Vol 22 (4) ◽  
pp. 286-294 ◽  
Author(s):  
J. E. Saunders ◽  
F. F. Bentley ◽  
J. E. Katon
Keyword(s):  
Infrared Spectra ◽  
Low Frequency ◽  
Pure Liquid ◽  
Vibrational Modes ◽  
Monocarboxylic Acids ◽  
Strongly Coupled ◽  
Dimer Structure ◽  
Raman Intensities ◽  
Infrared And Raman Intensities

The infrared spectra of a number of aliphatic monocarboxylic acids in the 350–50 cm−1 range are reported and several consistencies in band frequencies noted. An attempt to assign the low frequency vibrational modes of some of the simpler acids has been made based on infrared and Raman intensities. It is concluded that these molecules consist of relatively strongly coupled dimer molecules in the pure liquid and that the spectra reflect this dimer structure.

Dynamic Response of Normal and Osteoporotic Trabecular Bone by Vibration Analysis

2005 ◽  
Author(s):  
Wafa Tawackoli ◽  
Gemunu Gunaratne ◽  
Fazle Hussain ◽  
Michael Liebschner
Keyword(s):  
Treatment Efficacy ◽  
Low Frequency ◽  
Osteoporotic Fractures ◽  
Vibrational Modes ◽  
Response Signal ◽  
Noninvasive Sensors ◽  
Low Frequency Vibration ◽  
The Us ◽  
Monitoring Treatment

Osteoporosis afflicts about 200 million people worldwide; and osteoporotic fractures are in the millions annually in the US alone and cost tens of billions of dollars [1]. Characterization of bone quality in osteoporotic patients is important with respect to monitoring treatment efficacy, though currently quite limited. While some technical hurdles in developing a noninvasive diagnostic tool using low frequency vibration have been overcome, changes in the frequency response signal of bone have not been investigated at the various bone organizational levels. Our principal hypothesis is that the vibrational modes of bone tissue change significantly with the deterioration of bone micro-architecture and that these modes can be captured by noninvasive sensors.

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