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Yamamoto, Y., Shervani, Z., Shimoaki, T., Yoshida, D., Yokoyama, T., Yoshida, T., Taga, K., Kamaya, H. and Ueda, I. (2011) Study of Physisorption of Volatile Anesthetics on Phospholipid Monolayers Using a Highly Sensitive Quartz Crystal Microbalace (HS-QCM). Journal of Biophysical Chemistry, 2, 68-74.
http://dx.doi.org/10.4236/jbpc.2011.22010

has been cited by the following article:

• TITLE: Interactions between Phospholipid Monolayers (DPPC and DMPC) and Anesthetic Isoflurane Observed by Quartz Crystal Oscillator

  AUTHORS: Yasushi Yamamoto, Takashi Yokoyama, Daisuke Yoshida, Hiroya Mori, Karina Sekiguchi, Takatsugu Shimoaki, Akihiro Yoshino, Keijiro Taga, Zameer Shervani, Masato Yamamoto

  KEYWORDS: Physisorption, DPPC Monolayer, DMPC Monolayer, Quartz Crystal Oscillator, Anesthetic Isoflurane-Monolayer Interaction

  JOURNAL NAME: Journal of Biophysical Chemistry, Vol.6 No.2, March 31, 2015

  ABSTRACT: The interactions of phospholipid monolayers (dipalmitoyl phosphatidyl choline; DPPC and dimyristoyl phosphatidyl choline; DMPC) with volatile anesthetic isoflurane were investigated using quartz crystal microbalance (QCM) and quartz crystal impedance (QCI) methods. The quartz crystal oscillator was attached horizontally on the surface of DPPC and DMPC monolayer formed on the water surface. Physisorption of isoflurane hydrate at the DPPC monolayer surface was monitored in terms of frequency and resistance change of quartz crystal on addition of anesthetics isoflurane. Both frequency and resistance change showed the elastic nature of DPPC monolayer. Measurement of DMPC monolayer-isoflurane hydrate revealed the expandable nature of DMPC monolayer. Variation of frequency and impedance of DPPC and DMPC monolayer on addition of isoflurane which proved a two-step change has occurred at monolayer surface at isoflurane concentration of ≤8 mM that has been attributed to isoflurane aggregation at monolayer/water interface. Isoflurane hydrates formed in the process have capability to affect the interfacial properties of monolayer such as existence of structured water.