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Updated: Jun 1, 2026

Portable Paper-Based Immunoassay Combined with Smartphone Application for Colorimetric and Quantitative Detection of Dengue NS1 Antigen

Portable Paper-Based Immunoassay Combined with Smartphone Application for Colorimetric and Quantitative Detection of Dengue NS1 Antigen

Published on: January 26, 2024

DNA detection using commercial mobile phones.

Dasheng Lee¹, Wen Pin Chou, Shiou Hwei Yeh

¹Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei, Taiwan, ROC.

Biosensors & Bioelectronics

|May 31, 2011

Summary

This summary is machine-generated.

Mobile phone cameras can detect DNA using convective polymerase chain reaction (cPCR). Information entropy analysis proved more effective than fluorescence increment for accurate DNA detection, achieving up to 100% accuracy in clinical evaluations.

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Area of Science:

Biotechnology
Molecular Diagnostics
Mobile Health (mHealth)

Background:

Conventional DNA detection methods can be complex and require specialized equipment.
There is a need for accessible and portable DNA detection technologies.

Purpose of the Study:

To evaluate the feasibility of using mobile phone cameras for DNA detection.
To compare the effectiveness of fluorescence increment and information entropy analyses for DNA detection using mobile phones.

Main Methods:

DNA amplification was performed using convective polymerase chain reaction (cPCR).
Two analysis methods were employed: fluorescence increment (ΔF) and information entropy (P(C/X)).
Ten mobile phones with varying camera resolutions were used to analyze amplified DNA samples.

Main Results:

Information entropy analysis (P(C/X)) was more effective than fluorescence increment (ΔF) for DNA detection.
Clinical evaluation using hepatitis B virus (HBV) plasmid samples (n=60) showed accuracy rates from 85% to 100% across different mobile phone models.
The information entropy method demonstrated robust performance across diverse mobile phone camera sensors.

Conclusions:

Mobile phone cameras are a feasible tool for DNA detection.
Information entropy analysis offers a reliable method for interpreting DNA amplification results captured by mobile phones.
This approach enables accessible and widespread DNA screening using ubiquitous electronic devices.