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Related Experiment Video

Updated: May 16, 2026

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method

Published on: October 7, 2025

Simultaneously sensitive detection of multiple miRNAs based on a strand displacement amplification.

Tian Tian¹, Heng Xiao, Xiaolian Zhang

¹College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan, Hubei, 430072, P. R. China.

Chemical Communications (Cambridge, England)

|November 20, 2012

Summary

We developed a fast and sensitive method for detecting microRNAs (miRNAs) in serum using strand displacement amplification. This approach enables early disease diagnosis and prognosis through multiplexed miRNA analysis.

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Area of Science:

Biochemistry
Molecular Biology
Diagnostics

Background:

MicroRNAs (miRNAs) are crucial biomarkers for disease diagnosis and prognosis.
Sensitive and rapid detection of miRNAs in clinical samples is challenging.
Existing methods often lack multiplexing capabilities or require complex procedures.

Purpose of the Study:

To develop an efficient and sensitive strategy for serum miRNA detection.
To establish a multiplexed assay for simultaneous miRNA analysis.
To explore the potential of this method for early disease diagnosis and prognosis.

Main Methods:

Utilized strand displacement amplification (SDA) for signal amplification.
Employed fluorescence-labeled probes for detection.
Incorporated a common primer and polymerase for the amplification reaction.

Main Results:

Achieved efficient, sensitive, and rapid detection of miRNAs in serum.
Demonstrated multiplexed detection capabilities.
The system showed potential for clinical applications.

Conclusions:

The developed SDA-based strategy offers a promising tool for serum miRNA detection.
This method facilitates early disease diagnosis and prognosis.
The assay is suitable for multiplexed analysis, enhancing its clinical utility.