Freshwater fish clonorchis sinensis metacercaria infection colloidal gold rapid detection strip and making method thereof

A technique for detecting Clonorchis sinensis and test strips is applied in the field of rapid detection test strips for Clonorchis sinensis cysticerci colloid gold and its preparation, which can solve the problems of easy contamination, false negatives, lethality of freshwater fish, etc. Sexual and specific, easy-to-use effects

Inactive Publication Date: 2017-05-31
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires high-end temperature control equipment, and has high requirements on the environment during operation, otherwise it is easy to pollute and cause false negatives
[0007] The above traditional methods for detecting metacercariae in freshwater fish have certain advantages but also have limitations, such as time-consuming and labor-intensive, detection is fatal to freshwater fish, and are not suitable for large-scale rapid detection in the field
[0010] At present, there is no similar research or product that uses colloidal gold immunochromatography to diagnose freshwater fluke infection-specific antibodies

Method used

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  • Freshwater fish clonorchis sinensis metacercaria infection colloidal gold rapid detection strip and making method thereof
  • Freshwater fish clonorchis sinensis metacercaria infection colloidal gold rapid detection strip and making method thereof
  • Freshwater fish clonorchis sinensis metacercaria infection colloidal gold rapid detection strip and making method thereof

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Embodiment 1

[0084] 1. The preparation method of colloidal gold rapid detection test strip for Clonorchis sinensis metacercariae comprises the following steps:

[0085] (1) The first step, the preparation of the diagnostic antigen, specifically includes the following steps:

[0086] Live Clonorchis sinensis adults were isolated from the liver of cats infected with Clonorchis sinensis under aseptic conditions, rinsed with 0.2M PBS containing double antibodies (final concentration of penicillin 100U / ml; final concentration of streptomycin 0.1mg / ml) for 2 - 3 times, pick the adult worms into a 2ml EP tube with a toothpick after high pressure treatment, and add 2ml sterile PBS solution. Clonorchis sinensis crude antigen was obtained by centrifuging at 12,000 rpm at 4°C for 20 minutes, and stored at -80°C after aliquoting for future use.

[0087] (2) In the second step, preparation of antiserum against common trematodes of grass carp (clonorches sinensis, heteromorphia, civet opisthorchis etc....

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Abstract

The invention belongs to the field of biological detection, and particularly relates to a freshwater fish clonorchis sinensis metacercaria infection colloidal gold rapid detection strip and a preparation method thereof. The strip comprises a support plate, and a sample pad, a gold label pad, a nitrocellulose membrane and an absorbent pad which are positioned on the surface of the support plate and arranged in sequence from a sample adding end, wherein the gold label pad comprises a colloidal gold labeled rabbit anti-freshwater fish polyclonal antibody; the nitrocellulose membrane is coated with a detection line T and a quality control line C. By adopting the detection strip, the problems of waste of time and labor, need of special instruments and equipment, high miss ratio, low efficiency, incapability of realizing non-invasive detection, incapability of realizing large-range popularization and the like in the conventional freshwater fish clonorchis sinensis metacercaria infection detection method are solved.

Description

technical field [0001] The invention belongs to the field of biological detection, in particular to a colloidal gold rapid detection test strip for clonorchis sinensis metacercariae and a preparation method thereof. Background technique [0002] Clonorchis sinensis, also known as liver fluke, is a zoonotic parasitic disease with a large number of infected people and a wide range of epidemics in my country. Humans and animals are mainly infected with liver flukes by ingesting freshwater fish and shrimps that contain infecting live metacercariae. Adult worms mainly live in the hepatic bile ducts. On the one hand, they damage the bile duct epithelium or subcutaneous blood vessels through mechanical stimulation; on the other hand, the excretion products secreted by the worms can cause inflammation and other damage through the epithelial cells, and eventually cause suppurative cholangitis and obstructive cholelithiasis. , cholecystitis, pancreatitis, and even cause serious hepat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/558
CPCG01N33/558
Inventor 余新炳孙恒昌姜红烨周心怡唐泽丽林志鹏黄艳陈庭金
Owner SUN YAT SEN UNIV
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