Molecular recognition of cytosine- and guanine-functionalized nucleolipids in the mixed monolayers at the air-water interface and Langmuir-Blodgett films

The Journal of Physical Chemistry. B
Yuchun WangY Liang

Abstract

Molecular recognition of mixed nucleolipids of 1-(2-octadecyloxycarbonylethyl)cytosine and 7-(2-octadecyloxycarbonylethyl)guanine in the monolayers at the air-water interface and Langmuir-Blodgett (LB) films has been investigated in detail using surface pressure/potential-area isotherms, infrared reflection-absorption spectroscopy (IRRAS), and Fourier transform infrared (FTIR) transmission spectroscopy, respectively. Prior to molecular recognition, the cytosine moieties in the monolayer were hydrogen bonded with an almost flat-on orientation, the alkyl chains were uniaxially oriented with respect to the film normal, the guanine moieties in the monolayer were stacked probably through pi-pi interaction with an end-on orientation, and the C-C-C planes of the alkyl chains were preferentially oriented parallel to the water surface. In the monolayer of equimolar mixture, molecular recognition between the cytosine and guanine moieties occurred together with the ring planes of base pairing and the C-C-C planes of the alkyl chains favorably oriented parallel to the water surface. The guanine moieties underwent an orientation change from an end-on mode before molecular recognition to a flat-on one after molecular recognition. The base pa...Continue Reading

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Citations

Aug 30, 2012·Angewandte Chemie·Keita SakakibaraKatsuhiko Ariga
Nov 28, 2018·Journal of Colloid and Interface Science·Pablo G ArgudoLuis Camacho
May 14, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Garima Thakur, Roger M Leblanc
Jun 23, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Xuezhong DuRong Guo
Dec 31, 2010·The Journal of Physical Chemistry. B·Zhong-Xiu ChenShao-Ping Deng
Oct 14, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Ina Sigal-BatikoffAmir Berman
Apr 7, 2011·The Journal of Physical Chemistry. B·Douglas Santos MonteiroMaria Elisabete Darbello Zaniquelli
Apr 30, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·M LičenI Drevenšek-Olenik
Jan 4, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Julia Alvarez-MalmagroJacek Lipkowski
Jul 6, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Julia Alvarez-MalmagroJacek Lipkowski

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