Microfluidic paper-based analytical devices with instrument-free detection and miniaturized portable detectors

Takashi Kaneta, Waleed Alahmad, Pakorn Varanusupakul

Research output: Contribution to journalReview article

4 Citations (Scopus)

Abstract

Microfluidic paper-based analytical devices (µPADs) have attracted much attention over the past decade because they offer clinicians the ability to deliver point-of-care testing and onsite analysis. Many of the advantages of µPADs, however, are limited to work in a laboratory setting due to the difficulties of processing data when using electronic devices in the field. This review focuses on the use of µPADs that have the potential to work without batteries or with only small and portable devices such as smartphones, timers, or miniaturized detectors. The µPADs that can be operated without batteries are, in general, those that allow the visual judgment of analyte concentrations via readouts that are measured in time, distance, count, or text. Conversely, a smartphone works as a camera to permit the capture and processing of an image that digitizes the color intensity produced by the reaction of an analyte with a colorimetric reagent. Miniaturized detectors for electrochemical, fluorometric, chemiluminescence, and electrochemiluminescence methods are also discussed, although some of them require the use of a laptop computer for operation and data processing.

Original languageEnglish
Pages (from-to)117-141
Number of pages25
JournalApplied Spectroscopy Reviews
Volume54
Issue number2
DOIs
Publication statusPublished - Feb 7 2019

Fingerprint

Smartphones
Microfluidics
Detectors
Laptop computers
Chemiluminescence
detectors
Cameras
Color
electric batteries
Testing
Processing
timing devices
chemiluminescence
reagents
readout
cameras
color
electronics

Keywords

  • Microfluidic paper-based analytical device
  • onsite analysis
  • paper-based analytical device
  • point-of-care testing

ASJC Scopus subject areas

  • Instrumentation
  • Spectroscopy

Cite this

Microfluidic paper-based analytical devices with instrument-free detection and miniaturized portable detectors. / Kaneta, Takashi; Alahmad, Waleed; Varanusupakul, Pakorn.

In: Applied Spectroscopy Reviews, Vol. 54, No. 2, 07.02.2019, p. 117-141.

Research output: Contribution to journalReview article

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