申请人:THE PENN STATE RESEARCH FOUNDATION
公开号:US10648917B2
公开(公告)日:2020-05-12
In one aspect, methods of sensing are described herein. In some embodiments, a method of sensing includes disposing a fluorophore in a biological environment, wherein the fluorophore includes a dioxo-pyridine ring (DPR) or a thiazolopyridine acid (TPA). The method further includes exposing the biological environment to electromagnetic radiation having a wavelength corresponding to an excitation wavelength of the fluorophore, detecting light emitted by the fluorophore, and correlating the light emitted by the fluorophore to a presence or absence of an analyte within the biological environment in an amount above a minimum detection threshold. The presence of the analyte can increase or decrease the amount of light emitted by the fluorophore. The presence of the analyte may also shift the peak emission wavelength or alter the fluorescence lifetime of the fluorophore. The analyte, in some embodiments, includes hydrogen ions, halide ions, and/or halogens.
在一个方面,本文描述了传感方法。在一些实施例中,传感方法包括在生物环境中放置荧光团,其中荧光团包括二氧吡啶环(DPR)或噻唑吡啶酸(TPA)。该方法还包括将生物环境暴露于电磁辐射中,电磁辐射的波长与荧光团的激发波长相对应,检测荧光团发出的光,并将荧光团发出的光与生物环境中分析物的存在或不存在相关联,分析物的量超过最小检测阈值。分析物的存在可增加或减少荧光团发出的光量。被分析物的存在还可能移动峰值发射波长或改变荧光团的荧光寿命。在某些实施方案中,分析物包括氢离子、卤化物离子和/或卤素。