Photochemical Regulation of the Electrical Properties of the Novel Planar Bilayer Lipid Membrane Incorporating Spiropyran Derivatives
Photochemical Regulation of the Electrical Properties of the Novel Planar Bilayer Lipid Membrane Incorporating Spiropyran Derivatives
复制标题
掺有螺吡喃衍生物的新型平面双层脂质膜电性能的光化学调节
DOI：
10.1021/jp953340t
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Y. Yonezawa
中科院分区：
文献类型：
--
作者：
Motomu Tanaka;Y. Yonezawa
我们引入了烷基链取代的螺吡喃衍生物，1-甲基-3，3-二甲基-6 ′-硝基螺[二氢吲哚-2，2 ′-[2 H][1]苯并吡喃]（SP1）、1-十八烷基-3，3-二甲基-6 ′-硝基螺[二氢吲哚-2，2 ′-[2 H][1]苯并吡喃]（SP18）和1-十八烷基-3，3-二甲基-6 ′-硝基-8-[二十二烷酰氧基甲基]螺[二氢吲哚-2，2 ′-[2 H][1]苯并吡喃]（SP18），2 '-[2 H][1]苯并吡喃]（SP1822）与大豆磷脂的平面双层类脂膜（BLM）相互作用，并监测了BLM的光响应。当在BLM两端施加直流电压时，在紫外光和可见光交替照射下，跨膜电流发生变化。这样的光电响应的BLM似乎是由于螺吡喃的光异构化的膜电导率的变化引起的。
We incorporated the alkyl chain substituted spiropyran derivatives, 1-methyl-3,3-dimethyl-6‘-nitrospiro[indoline-2,2‘-[2H][1]benzopyran] (SP1), 1-octadecyl-3,3-dimethyl-6‘-nitrospiro[indoline-2,2‘-[2H][1]benzopyran] (SP18), and 1-octadecyl-3,3-dimethyl-6‘-nitro-8-[docosanoyloxymethyl]spiro[indoline-2,2‘-[2H][1]benzopyran] (SP1822) into the planar bilayer lipid membranes (BLM) of soybean lecithin for the first time, and the photoresponse of the BLM was monitored. When a dc voltage was applied across the BLM, the transmembrane current changed under alternate irradiation with ultraviolet light and visible light. Such a photoelectric response of the BLM seems to be caused by the change in the membrane conductivity due to photoisomerization of spiropyran.