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Smartphone-Enabled Detection Strategies for Portable PCR-Based Diagnostics.

Aashish Priye1, Victor M Ugaz2,3

  • 1Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, 77843-3122, USA.

Methods in Molecular Biology (Clifton, N.J.)
|March 11, 2017
PubMed
Summary

This study presents smartphone-based methods for low-cost nucleic acid detection, enabling portable diagnostics. These advancements offer real-time DNA amplification data comparable to lab instruments for resource-limited settings.

Keywords:
Image analysisLabel free detectionMobile health carePCRPoint of careSmartphone

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Area of Science:

  • Biotechnology
  • Molecular Diagnostics
  • Medical Devices

Background:

  • Development of low-cost nucleic acid-based diagnostic solutions for resource-limited settings is advancing.
  • Detection components are crucial but challenging to adapt for portable systems.
  • Consumer smartphones offer a convenient platform for nucleic acid detection.

Purpose of the Study:

  • To leverage smartphone capabilities for detecting nucleic acid products from DNA amplification.
  • To develop portable, low-cost detection components for nucleic acid-based diagnostics.

Main Methods:

  • Incorporating fluorescence-based detection into a portable convective thermocycling system controlled by a smartphone app.
  • Utilizing smartphone camera imaging for real-time processing of raw fluorescence data.
  • Employing smartphone imaging for label-free detection of polymerase chain reaction (PCR) products via electrochemical reactivity changes.

Main Results:

  • Smartphone-controlled portable thermocycling system provides real-time amplification data comparable to benchtop instruments.
  • Label-free detection of PCR products achieved using smartphone imaging and electrochemical monitoring.
  • Advancements enable the construction of rugged, inexpensive nucleic acid detection components.

Conclusions:

  • Smartphone-based platforms can facilitate portable and cost-effective nucleic acid detection.
  • These technologies are suitable for deployment in resource-limited settings.
  • The developed detection components can be integrated into various portable bioanalysis instruments.