請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/36561
標題: Neutron and X-ray scattering on the monolayer structure of a lecithin fullerene-derivative
作者: Jeng, U.S.
施明智
Lin, T.L.
Shin, K.
Lee, H.Y.
Hsu, C.H.
Chi, Z.A.
Shih, M.C.
Torikai, N.
關鍵字: X-ray and neutron reflectivity
Langmuir and Langmuir-Blodgett films
lecithin C-60 derivative
GISAXS
air-water-interface
atomic-force microscopy
langmuir films
lipid-bilayer
polyhydroxylated fullerenes
dppc monolayers
c-60
reflection
behavior
surface
期刊/報告no:: Journal of Nanoscience and Nanotechnology, Volume 7, Issue 4-5, Page(s) 1406-1413.
摘要: eUsing neutron reflectivity with contrast variation, X-ray reflectivity, and grazing incident small-angle X-ray scattering (GISAXS), we have characterized the in-depth and in-plane structural characteristics of the Langmuir and Langmuir-Blodgett (LB) films formed by a novel lecithin C-60-derivative, FPTL, of three phospholipids jointly bonded on one single olefinic moiety of a C-60 cage. Based on the neutron reflectivity measured, we have proposed a monolayer structure, with the C-60 cages of FPTL lifted into the air and hydrophilic phospholipid heads immersed in water, for the FPTL Langmuir layer formed on water. On the other hand, the LB film of FPTL prepared on mica exhibits clear Kiessig fringes in the X-ray reflectivity profile, indicating a 27 angstrom monolayer film with less molecular orientation. With GISAXS, we have extracted an in-plane correlation length of about 210 angstrom for a possible in-plane aggregation Of C-60 of FPTL in the LB monolayer. We have also demonstrated the highly ordered monolayer structures of a lecithin lipid, in elucidating the positive effect of the attached functional group-phospholipids on the monolayer formation of the lecithin C-60-derivative.
URI: http://hdl.handle.net/11455/36561
ISSN: 1533-4880
文章連結: http://dx.doi.org/10.1166/jnn.2007.321
顯示於類別:物理學系所

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