一种快速检测耐甲氧西林金黄色葡萄球菌的试纸条及其应用

By combining immunochromatographic technology and tyrosine signal amplification reaction with test strips coated with MoS2 nanosheets on the detection pad, the problems of time-consuming and complex existing MRSA detection and background fluorescence interference are solved, and rapid and sensitive MRSA detection is achieved.

CN120085001BActive Publication Date: 2026-07-17CHONGQING NO 3 PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING NO 3 PEOPLES HOSPITAL
Filing Date
2025-03-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing MRSA detection methods are time-consuming and complex to operate, making it difficult to meet the needs of rapid on-site testing. Furthermore, paper-based sensors are prone to background fluorescence interference under excitation light, affecting the accuracy of the detection.

Method used

A rapid test strip for detecting methicillin-resistant Staphylococcus aureus was designed by using MoS2 nanosheets to quench background fluorescence on the detection pad and combining immunochromatography with tyrosine signal amplification. The MoS2 nanosheets quench background fluorescence to improve the signal-to-noise ratio, and the signal aggregation and amplification are achieved by using MoS2 nanosheets on the detection pad and horseradish peroxidase-labeled penicillin-binding protein 2a polyclonal antibody on the binding pad.

Benefits of technology

Rapid and sensitive detection of MRSA samples was achieved within 20 minutes, improving the sensitivity and accuracy of the detection and meeting the needs for portable and rapid on-site testing.

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Abstract

本发明提供了一种快速检测耐甲氧西林金黄色葡萄球菌的试纸条及其应用,属于生物化学检测技术领域。本发明试纸条,包括底板、样品垫、结合垫、检测垫以及吸水垫,所述检测垫的两端分别与结合垫、吸水垫搭接且检测垫位于下方,样品垫和结合垫搭接且结合垫位于下方;检测垫上设有检测线和质控线,靠近结合垫的一侧设有检测线,靠近吸水垫的一侧设有质控线;所述检测垫上包被MoS2纳米片,所述结合垫上包被辣根过氧化物酶标记的青霉素结合蛋白2a多抗,所述检测线上包被青霉素结合蛋白2a单抗;所述质控线上包被羊抗兔IgG。本发明灵敏度高,线性范围宽,具有良好的特异性、重复性以及稳定性,且在临床样本中能有效检出MRSA。
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Citation Information

Patent Citations

  • Antibody specific to methicillin resistant staphylococcus aureus, detection method and kit for methicillin resistant staphylococcus aureus using the same

    CN102482346A

  • Aptamer based methicillin-resistant staphylococcus aureus fluorescence detection method

    CN108982848A