Rapid detecting sensor for microcystins

A technology of microcystin and detection sensor, which is applied in the direction of material absorption and weighing, can solve the problems of false positive reaction and inability to identify toxins well, and achieves enhanced specific recognition ability, low operator requirements, Enhance the effect of specific recognition

Active Publication Date: 2014-04-02
SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the toxin cannot be well identified, and false positive reactions will occur

Method used

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  • Rapid detecting sensor for microcystins
  • Rapid detecting sensor for microcystins
  • Rapid detecting sensor for microcystins

Examples

Experimental program
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Embodiment Construction

[0021] Such as figure 1 shown. A rapid detection sensor for microcystin, comprising a silicon substrate 3 and two layers of Lamb wave thin films 1 and 2 sequentially arranged on the silicon substrate 3, the bottom of the silicon substrate 3 is modified with Microcystis by photopolymerization and electrochemical polymerization The toxin molecularly imprinted film 4 consists of a silicon substrate 3, two layers of Lamb wave films 1 and 2, a microcystin molecularly imprinted film 4, and interdigitated electrodes 7 to form a microcystin detection sensor chip 8, and the microcystin detection sensor chip 8 is packaged Finally, a rapid detection sensor for microcystin was formed.

[0022] When the microcystin molecularly imprinted membrane 4 is modified on the silicon substrate 3 by photopolymerization, methacrylic acid is used as a functional monomer, ethylene glycol dimethacrylate is used as a crosslinking agent, and benzophenone is used as an initiator. Add the ethanol mixed sol...

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Abstract

The invention discloses a rapid detecting sensor for microcystins. The rapid detecting sensor utilizes a photochemistry polymerization method or an electrochemical polymerization method to synthesize a molecularly imprinted membrane, so that the combining capacity is improved, the delay time is reduced, and the specific adsorption capacity is strengthened; meanwhile, a Lamb wave piezoelectric membrane is utilized as an effector of the sensor, so that the sensitivity of the sensor is improved, the stability is increased, the cost is reduced, the performance of the sensor is strengthened, the trace detection of the microcystins is realized, and thus the rapid detecting method for the microcystins, with high sensitivity, rapidness, low cost and low operation requirements, is established.

Description

technical field [0001] The invention relates to the field of microcystin sensors, in particular to a rapid detection sensor for microcystins. Background technique [0002] The middle and lower reaches of the Yangtze River is one of the areas where freshwater lakes are concentrated in my country. In the past few decades, human activities have had a great impact on the lake ecosystem in this area. The most prominent is the increasing eutrophication of suburban lakes. Lakes, reservoirs and rivers receive excessive nutrients such as nitrogen and phosphorus, which changes the ecological structure and function of the water body, resulting in the abnormal growth of algae, especially cyanobacteria, and the phenomenon of cyanobacteria blooms. The frequent occurrence of harmful algae blooms caused by the aggravation of eutrophication in water bodies has become an environmental problem of general concern. When the cyanobacteria bloom is severe, it not only affects human senses and des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/02
Inventor 周连群何皓黎海文董文飞吴一辉王弼陡
Owner SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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