Laser & Optoelectronics Progress, Volume. 54, Issue 4, 43001(2017)
Terahertz Spectroscopy of the Interfacial Water in Phospholipid Membranes
Interfacial water plays an important role in the function of biological membranes. However, due to the significant absorption of water on the terahertz wave, it is very difficult to obtain the terahertz transmission spectra of the membrane interfaces. Herein, we develop a system to study the membrane interfacial water by combining the preparation of water droplets in lipid and terahertz time domain spectroscopy. It only needs a few biological samples but has high sensitivity of water state in this method. Based on this system, we have successfully measured the terahertz dielectric spectra of kinds of lipid emulsions. The results revealed that the hydration state and water dynamics upon the membrane interface are dependent on the lipid headgroup components.
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Pan Yatao, Lü Junhong. Terahertz Spectroscopy of the Interfacial Water in Phospholipid Membranes[J]. Laser & Optoelectronics Progress, 2017, 54(4): 43001
Category: Spectroscopy
Received: Oct. 8, 2016
Accepted: --
Published Online: Apr. 19, 2017
The Author Email: Yatao Pan (1229241441@qq.com)