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Array fibre evanescent wave biosensor system

A biosensor, array fiber technology, applied in biological testing, fluorescence/phosphorescence, material inspection, etc., can solve the problems of high component positioning requirements, complex system, large space occupation, etc., and achieve less optical separation components and light transmission efficiency. High, miniaturization effect

Inactive Publication Date: 2010-03-10
北京金达清创环境科技有限公司 +1
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Problems solved by technology

[0004] Therefore, the disadvantages of the traditional optical fiber evanescent wave biosensor system are: complex system; large energy loss; high component positioning requirements; large space occupation, difficult to realize miniaturization of instruments; low flexibility of optical path layout, difficult adjustment, etc.

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  • Array fibre evanescent wave biosensor system

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Embodiment Construction

[0016] The specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] figure 1 is a block diagram of an arrayed fiber optic evanescent wave biosensor system according to an embodiment of the present invention. Such as figure 1 As shown, the arrayed optical fiber evanescent wave biosensor system according to the embodiment of the present invention includes: a laser emitting device 1; a laser transmission optical path 2, 601, 603; an optical fiber probe 9; a fluorescence receiving optical path 602, 603; a photodetector 4; and a processing unit 11 .

[0018] Among them, the input ends of the laser transmission optical circuits 2, 601, 603 are coupled to the laser emitting device 1, and the output ends are coupled to the optical fiber probe 9; the input ends of the fluorescence receiving optical circuits 602, 603 are coupled to the optical fiber probe 9, and the output ends are coupled to the p...

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Abstract

The invention discloses an array fibre evanescent wave biosensor system, which comprises a laser transmitting device (1), laser transmission optical paths (2, 601 and 603), an optical fibre probe (9),fluorescence receiving optical paths (602 and 603), a photoelectric detector (4) and a processing unit (11), wherein the input ends of the laser transmission optical paths (2, 601 and 603) are coupled with the laser transmitting device (1), while the output ends are coupled to the optical fibre probe (9); the input ends of the fluorescence receiving optical paths (602, 603) are coupled with the optical fibre probe (9), while the output ends are coupled to the photoelectric detector (4); the processing unit (11) is connected with the photoelectric detector (4) and the laser transmitting device(1); and the laser transmission optical paths (2, 601 and 603) and the fluorescence receiving optical paths (602 and 603) are at least partially formed by optical fibres. The array fibre evanescent wave biosensor system has the advantages of simple structure, high optical transmission efficiency, compact instruments and miniaturization.

Description

technical field [0001] The invention relates to an array optical fiber evanescent wave biosensor system, in particular to an array optical fiber evanescent wave biosensor system for detecting the concentration of environmental organic pollutants. Background technique [0002] The optical fiber evanescent wave biosensor system uses light waves to generate evanescent waves in the medium where the optical fiber probe is located when the light wave is transmitted in the form of total reflection in the optical fiber. Biological substances marked with fluorescent molecules on the surface, so as to achieve the purpose of detecting the concentration of the target substance to be measured. Usually the penetration depth of the evanescent wave field is only tens of nanometers to hundreds of nanometers, so the optical fiber evanescent wave biosensor system can only detect the fluorescence emitted by the fluorescent molecules combined in the evanescent wave field, while the free ones in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64G01N33/48
Inventor 龙峰施汉昌廖志民何苗
Owner 北京金达清创环境科技有限公司
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