Citation: Dai Shu-Xi, Zhang Xing-Tang, Li Yun-Cai, Du Zu-Liang, Dang Hong-Xin. Surface Enhanced Raman Spectra of Lipid Langmuir Monolayers at the Air-Water Interface[J]. Acta Physico-Chimica Sinica, ;2003, 19(12): 1123-1126. doi: 10.3866/PKU.WHXB20031206
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Surface enhanced Raman spectroscopy(SERS) has been used to study the octadecylamine(ODA) Langmuir monolayers and egg phosphatidylcholine(PC)/ODA mixed monolayers on colloidal silver subphase. The SERS enhancement results from the strong interaction between headgroups of the ODA molecules and silver nanoparticles in subphase. The results of Raman test for PC/ODA mixed monolayers show that the vibrational information of phospholipid molecules can be acquired in situ with surfactant-aided SERS effect. Work based on such systems could expand the application of SERS technique in the study of Langmuir monolayers at the air-water interface.
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