Modularized upconversion fluorescent tomography test paper exciting device

Abstract

The invention discloses a modularized upconversion fluorescent tomography test paper exciting device. The modularized upconversion fluorescent tomography test paper exciting device comprises an uppercasing and a lower casing which are detachably connected, wherein a laser device, an optical detection box and a circuit unit are integrated into the lower casing; the circuit unit is used for providing a power source for the laser device; the infrared light transmitted by the laser device is filtered to remove clutter by a dichroism light filter in the optical detection box, and then reaches a to-be-tested upconversion fluorescent test paper strip; upconversion fluorescent particles on the tomography upconversion fluorescent test paper strip are excited to produce visible light; when the visible light passes through the dichroism light filter, the visible light is vertically reflected, then passes through an infrared light filter, and finally enters a focusing lens; the infrared light filter is used for reducing the influence to the shooting results by the exciting light; a user can directly observe and obtain the color developing result of the test paper via an observing hole. The modularized upconversion fluorescent tomography test paper exciting device has the advantages that the whole structure is compact, the external power source is not needed, hundreds of samples can be continuously detected, and the user can conveniently perform quantitative detection on the upconversion fluorescent tomography test paper at any time and any place.

Description

technical field [0001] The invention belongs to the technical field of biomedical devices, and in particular relates to a modular up-conversion fluorescence chromatography test paper excitation device. Background technique [0002] Up-conversion fluorescence is a kind of anti-Stokes luminescence, which can be excited by near-infrared light with a wavelength of 980nm to emit visible light, that is, it absorbs low-energy long-wavelength photons and emits high-energy short-wavelength photons. Therefore, compared with the traditional fluorescence detection technology, the up-conversion fluorescence detection technology has the advantages of high sensitivity, good optical stability, no quenching, no autofluorescence, no background light interference, and no tissue damage. At present, up-conversion fluorescent materials have been widely used in biomedical fields such as biological imaging and drug sustained release. Simultaneously, the chromatography test paper that converts the ...

AI Technical Summary

Problems solved by technology

Researchers usually build an up-conversion fluorescence chromatography test paper detection platform by themselves, but the built detection platform occupies a large space, and needs to manually adjust the excitation light and detection components. repeatability and stability

Images