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Citation: Liu Ting-Ting, Yu An-Chi, Luo Guo-Bin, Zhao Xin-Sheng, Ying Li-Ming, Huang Yan-Yi, Huang Chun-Hui. Aggregates in Rhodamine-labeled Phospholipid Films Probed by Spectroscopy and Atomic Force Microscopy[J]. Acta Physico-Chimica Sinica, ;2000, 16(01): 49-54. doi: 10.3866/PKU.WHXB20000110 shu

Aggregates in Rhodamine-labeled Phospholipid Films Probed by Spectroscopy and Atomic Force Microscopy

1.
State Key Laboratory of Molecular Dynamic and Stable Structures,and Institute of Physical Chemistry,Peking University,Beijing 100871;State Key Laboratory of Rare Earth Materials Chemistry and Applications,Peking University,Beijing 100871

Received Date: 29 March 1999
Available Online: 15 January 2000

Molecular aggregates of rhodamine labeled phospholipid T1391 on LB films at different surface pressures have been investigated by optical spectroscopy and atomic force microscopy (AFM). Different types of molecular aggregates which show peak shifting and band broadening in the spectra were confirmed by the morphological AFM image. The rhodamine chromophores in the aggregates were suggested to orient at an angle of about 45 degree on the mica surface based on exciton theory and surface pleasure-area isotherm.
- Aggregate,
- Exciton,
- AFM,
- Phospholipid,
- LB film,
- Spectroscopy
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