The application of a SERS fiber probe for the investigation of sensitive biological samples
The application of a SERS fiber probe for the investigation of sensitive biological samples
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作者：
Gessner, R;Rösch, P;Popp, J
蚀刻和银或金涂覆的Sers光纤探针与市售实验室微拉曼装置或自制移动的微拉曼装置组合以进行现场现场测量的适用性被评估并在不同的生物样品上成功地测试。Sers光纤探针允许人们以高空间分辨率进行测量。同时，与传统的拉曼实验相比，用于生物样品上的拉曼光谱的激光功率可以减少两个数量级以上。对该实验安排进行了测试，以研究敏感的生物样品，如薄荷植物（佛手柑薄荷，留兰香薄荷）和柑橘类水果（柑橘）。此外，葡萄酒叶上的杀菌剂的痕迹检测通过这样的Sers光纤探针设置。
The applicability of an etched and silver or gold coated SERS fiber probe in combination with a commercially available laboratory micro-Raman setup or a home built mobile micro-Raman setup to perform on-site field measurements was evaluated and successfully tested on different biological samples. The SERS fiber probe allows one to perform measurements with high spatial resolution. Simultaneously, the laser power used for Raman spectroscopy on biological samples as compared with conventional Raman experiments can be reduced by more than two orders of magnitude. This experimental arrangement was tested to investigate sensitive biological samples like mint plants (Bergamot mint, spear mint) and citrus fruits (kumquat). Furthermore, traces of fungicides on wine leaves were detected by means of such a SERS fiber probe setup.