Title :
Structural change of interfacial water by adsorption of counterions on Langmuir monolayer
Author :
Seok, Sangjun ; Sung, Woongmo ; Kim, Doseok ; Miranda, Paulo B.
Author_Institution :
Dept. of Phys. & Interdiscipl. Program of Intergrated Biotechnol., Sogang Univ., Seoul, South Korea
Abstract :
Langmuir monolayer of lipid molecules on LaCl3 solutions was investigated by sum-frequency vibrational spectroscopy. Adsorption of La3+ cation on lipid headgroups increased with higher LaCl3 concentration, finally overcompensating negative charges of the lipid headgroups.
Keywords :
Langmuir-Blodgett films; lanthanum compounds; monolayers; vibrational states; LaCl3; Langmuir monolayer; counterions adsorption; interfacial water; lipid molecules; structural change; sum frequency vibrational spectroscopy; Biotechnology; Electrokinetics; Frequency; Infrared spectra; Laser beams; Lipidomics; Physics; Resonance; Surface emitting lasers; Tunable circuits and devices; Charge Inversion; Electrolyte; Langmuir monolayer; Lipid; Sum-frequency generation;
Conference_Titel :
Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009. CLEO/PACIFIC RIM '09. Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3829-7
Electronic_ISBN :
978-1-4244-3830-3
DOI :
10.1109/CLEOPR.2009.5292348