| 胆红素有序分子膜的行为研究 |
| STUDY OF THE CHARACTERISTICS OF BILIRUBIN IN ORDERED MOLECULAR FILMS |
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| 摘要: 研究了不同亚相表面胆红素(BR)单分子膜和LB膜的性质，讨论了胆红素分子在有序分子膜中的堆积密度、分子伸展和金属离子配位。在气-水界面，BR与金属离子的配位导致BR单分子截面积、崩溃压和可见紫外光谱的变化。原子力显微镜表明BR-Cu单分子膜的厚渡为1.23 nm。 |
| 关键词: 单分子膜 LB膜 胆红素 酸度 配位 |
| 基金项目: |
| Abstract: Monolayer formation and LB films fabrication of bilirubin (BR) at an air-water interface on subphases with different pH values and subphases containing metal ions were investigated. Some information regarding the packing density, molecular orientation and metal ions complexation in monolayers has been obtained. At the air-water interface the formation of BR-metal complexes leads to changes in the area per BR molecule and the collapse pressure, as well as changes in UV-visible absorption spectra of the monolayer assemblies. Atomic force microscopy analysis indicates the thickness of BR-Cu monolayer was ca. 1.23 nm. |
| Keywords: monolayer Langmuir-Blodgett films bilirubin acidity complexation |
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| 欧阳健明,李串,林伟汉.胆红素有序分子膜的行为研究[J].无机化学学报,1999,15(4):487-492. |
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