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Biosensing based on two-photon fluorescence measurements through optical fibers

机译:基于通过光纤的双光子荧光测量的生物传感

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摘要

We have performed two-photon fluorescence detection in a new scheme in which femtosecond laser pulses were delivered thorugh an optical fiber for nonlinear excitation and the emitted fluorescence was collected through the same fiber. Single-mode fibers were determined to give higher detection efficiency than multimode fibers, consistent with theoretical considerations. The utility of fiber-optic sensing based on two-photon fluorescence detection was proved by an experiment that measured the uptake of a targeted drug delivery agent into cultured cancer cells.
机译:我们已经在一种新的方案中执行了双光子荧光检测,其中飞秒激光脉冲通过光纤传输以进行非线性激发,并通过同一根光纤收​​集发射的荧光。确定的单模光纤比多模光纤具有更高的检测效率,这与理论上的考虑是一致的。通过测量目标药物递送剂对培养癌细胞的摄取的实验,证明了基于双光子荧光检测的光纤传感的实用性。

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