链、片和液滴：饱和磷脂酰胆碱脂质和角鲨烯包裹的疏水金纳米晶体组装体。
Chains, sheets, and droplets: assemblies of hydrophobic gold nanocrystals with saturated phosphatidylcholine lipid and squalene.
机构信息
Department of Chemical Engineering, Texas Materials Institute, Center for Nano- and Molecular Science and Technology, The University of Texas at Austin, Austin, Texas 78712-1062, United States.
出版信息
Langmuir. 2012 Oct 30;28(43):15160-7. doi: 10.1021/la302734r. Epub 2012 Oct 17.
Assemblies of saturated 1,2-diacylphosphatidylcholine lipid and hydrophobic dodecanethiol-capped 1.8 nm diameter gold nanocrystals were studied as a function of lipid chain length and the addition of the naturally occurring oil, squalene. The gold nanocrystals formed various lipid-stabilized agglomerates, sometimes fusing with lipid vesicle bilayers. The nanocrystal assembly structure depended on the hydrocarbon chain length of the lipid fatty acids. The lipid with the shortest fatty acid length studied, dilauroylphosphatidylcholine, created extended chains of gold nanocrystals. The lipid with slightly longer fatty acid chains created planar sheets of nanocrystals. Further increases of the fatty acid chain length led to spherical agglomerates. The inclusion of squalene led to lipid- and nanocrystal-coated oil droplets.
饱和 1,2-二酰基磷脂酰胆碱脂质和疏水十二硫醇封端的 1.8nm 直径金纳米晶体的组装体作为脂质链长的函数以及天然油角鲨烯的添加进行了研究。金纳米晶体形成了各种脂质稳定的聚集体，有时与脂质囊泡双层融合。纳米晶体组装结构取决于脂质脂肪酸的碳氢链长度。在所研究的最短脂肪酸长度的脂质二肉豆蔻酰磷脂酰胆碱中，形成了金纳米晶体的伸展链。具有稍长脂肪酸链的脂质则形成了纳米晶体的平面片。进一步增加脂肪酸链长度导致形成球形聚集体。角鲨烯的包含导致脂质和纳米晶体包被的油滴。
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