Luo, Changhong and Zhu, Chuanfeng and Ruan, Like and Huang, Guizhen and Dai, Changchun and Cheng, Zhengbo and Bai, Chunli and Su, Yaxian and Xu, Sanduo and Lin, Kechun and Baldeschwieler, John D. (1990) Scanning tunneling microscopy of the phosphatidylcholine bilayers. Journal of Vacuum Science and Technology A, 8 (1). pp. 684-686. ISSN 0734-2101 http://resolver.caltech.edu/CaltechAUTHORS:LUOjvsta90
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The bare surface of the egg-PC bilayers after being dried at room temperature was observed by the STM and images with angstrom resolution were obtained. Results indicate that the lipid heads form islands of an average of 210 Å in diameter and 40 Å in separation on the bilayers and that each island contains about 170 lipid heads of 7.5 Å in diameter. The size of the lipid heads is correspondent with that calculated from the standard bond distances and the bond angles. The ordered distribution of the lipid heads in some areas may correspond to the ordered arrangement of the lipid heads on the egg-PC bilayers before being dried. The STM results also show that there exists the ripple phase in the egg-PC bilayers below its phase transition temperature.
|Additional Information:||© 1990 American Vacuum Society. Received 10 July 1989; accepted 23 August 1989.|
|Subject Keywords:||SCANNING TUNNELING MICROSCOPY, MEDIUM TEMPERATURE, BIOLOGICAL MATERIALS, SURFACE STRUCTURE, SPATIAL RESOLUTION, BILAYERS, LIPIDS, PHASE TRANSFORMATIONS, SAMPLE PREPARATION|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||21 Oct 2008 15:52|
|Last Modified:||26 Dec 2012 10:26|
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