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中文摘要：
在微波法制备的纳米银上获得了大肠杆菌的表面增强拉曼光谱，大肠杆菌在650、952、1125、1242、1320、1372、1459cm。有明显的拉曼振动峰。其中650cm-1处的振动峰最强，1124、1320、1372和1459cm^-1处的四个振动峰较弱，952、1242cm^-1处的二个振动峰强度居中。位于650cm^-1附近的拉曼峰源自于酪氨酸、鸟嘌呤的振动，952cm^-l属于缩氨酸基团C=C的伸缩振动，1124cm^-1是蛋白质的C—N和C—C伸缩振动引起的，1242cm^-1则归属于是酰胺III蛋白的振动，1320cm^-1是蛋白质的CH变形振动，1372cm^-1是由酪氨酸振动引起的，1459cm^-1则是蛋白质的CH2变形振动。
英文摘要：
The SERS spectra of Escherichia coli was obtained on colloidal Ag nanoparticles prepared by the microwave method. E. coli have obvious Raman vibrating peaks in 650, 952,1125,1242,1320,1372,1459 cm-1. Among theSERS spectrum of E. coli, the vibra- ting peaks at 650 cm-1 is strongest, four vibrating peaks of 1124, 1320, 1372 and 1459 cm-1 are weak, the 952, and 1242 cm-1 in middle, tyrosine, guanine at 650 cm-1. C=C deformation at 952 cm-1 , C-- N and C--C Stetching vibration of protein at 1125 cm-1, amide III at 1242 cm-1,and CH deformation at 1320 cm-1. Tyrosine at 1372 cm-1, CH2 deformation at 1459 cm-1.
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