Title :
Nanometer-scale vibrational dynamics in biological membranes
Author :
Lee, J.W. ; Mendis, Rajind ; Mittleman, Daniel M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
We report on dynamic properties of supported phospholipid membranes, using a spectroscopy technique based on terahertz surface guided waves. The transmitted spectra clearly show not only signal decrease of about 10% due to water absorption, but also transmission dips caused by the vibrational motions of membrane molecules.
Keywords :
biomedical measurement; biomembranes; biomolecular effects of radiation; electromagnetic wave absorption; electromagnetic wave transmission; lipid bilayers; terahertz wave spectra; vibrational states; water; biological membranes; nanometer-scale vibrational dynamics; phospholipid membranes; spectroscopy technique; terahertz surface guided waves; transmission dips; transmitted spectra; water absorption; Absorption; Biomembranes; Electromagnetic waveguides; Lipidomics; Nanobioscience; Optical waveguides; Spectroscopy; Surface waves; Time domain analysis; Waveguide discontinuities;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324641
