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Updated: Jul 3, 2026

A Polyaniline-based Sensor of Nucleic Acids

A Polyaniline-based Sensor of Nucleic Acids

Published on: November 1, 2016

Polymer single-nanowire optical sensors.

Fuxing Gu¹, Lei Zhang, Xuefeng Yin

¹State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, and Institute of Microanalytical Systems, Zhejiang University, Hangzhou 310027, China.

|August 5, 2008

Summary

Highly versatile polymer single nanowire nanosensors offer rapid detection. These functionalized nanowires demonstrate high sensitivity for humidity, nitrogen dioxide (NO2), and ammonia (NH3) sensing at sub-parts-per-million levels.

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Area of Science:

Materials Science
Nanotechnology
Chemical Sensing

Background:

Polymer single nanowires exhibit unique optical properties.
Developing compact and sensitive detection systems is crucial for various applications.

Purpose of the Study:

To develop versatile nanosensors using polymer single nanowires.
To demonstrate the application of these nanosensors in humidity and gas detection.

Main Methods:

Utilizing the optical response of waveguiding polymer single nanowires.
Functionalizing polymer nanowires for specific analyte detection.

Main Results:

Achieved a response time of 30 ms for humidity sensing.
Detected nitrogen dioxide (NO2) and ammonia (NH3) down to sub-parts-per-million levels.

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Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

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A Polyaniline-based Sensor of Nucleic Acids

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Demonstrated high sensitivity and a small footprint.

Conclusions:

Functionalized polymer single nanowires provide a versatile platform for nanosensing.
The developed sensing scheme is suitable for fast, sensitive detection in physical, chemical, and biological applications.