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    Interfacial assembled Langmuir films of isomeric lipid derivative: Effect of hydrogen bond and chirality transfer

    Year: 2020

    Journal: Colloid Surf. A-Physicochem. Eng. Asp., Volume 586, FEB 5

    Authors: Wang, XF; Duan, PF; Liu, MH

    Organizations: National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21603276, 51673050, 91856115, 21890734]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [19CX02060A]; Qingdao applied basic research project [17-1-1-74-jch]

    Keywords: Isomeric effect; Langmuir-Blodgett film; Assemble; Supramolecular chirality

    The assembled behaviors of three isomeric L-glutamic lipid derivatives at the water/air interface are different via Langmuir-Blodgett method. Various nanostructures were formed by different mode of hydrogen bond. In the mode of intramolecular hydrogen bond interaction, relative long and thin nanowire appeared. If intermolecular hydrogen bond interaction plays an important role, short nanorod nanostructures were obtained. While both intra- and inter-molecular hydrogen bond interactions exist, the morphology exhibits the mixture of nanowire and nanosheet. In the case of tetrakis (4-sulfonatonphenyl)-porphine (TPPS) added to the subphase, the nanostructures of self-assembly change obviously and achiral TPPS can be induced to appear supramolecular chirality, which due to the interaction between TPPS and the chiral lipid. And the opposite supramolecular chirality ascribed to TPPS can be induced by the origin chirality of lipids.
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