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Issue 1, 2011
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A simple and smart telemedicine device for developing regions: a pocket-sized colorimetric reader

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Abstract

We have proposed a novel mobile healthcare platform, combining a pocket-sized colorimetric reader (13.5 × 6.5 × 2.5 cm3) and commercially available 10-parameter urinalysis paper strips (glucose, protein, glucose, bilirubin, urobilinogen, ketones, nitrite, pH, specific gravity, erythrocytes, and leukocytes), capable of sending data with a smart phone. The reader includes a novel colorimetric multi-detection module, which consists of three-chromatic light-emitting diodes, silicon photodiodes and a novel poly(methylmethacrylate) (PMMA) optical splitter. We employed data reading methods using conversions of the signal data (red, blue, and green) to the hue (H) color map or the Y model data, and used a curve-fitting method for the quantification. The reader is battery-powered, inexpensive, light-weight, and very speedy in analysis. And, it was applied to detection of a thousand of human urine samples and demonstrated reliable quantification of urinary glucose and protein. The features can be used by unskilled people on-site to transfer the analyzed data to experts off-site.

Graphical abstract: A simple and smart telemedicine device for developing regions: a pocket-sized colorimetric reader

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Article information


Submitted
19 Jul 2010
Accepted
13 Oct 2010
First published
26 Nov 2010

Lab Chip, 2011,11, 120-126
Article type
Technical Note

A simple and smart telemedicine device for developing regions: a pocket-sized colorimetric reader

D. Lee, B. G. Jeon, C. Ihm, J. Park and M. Y. Jung, Lab Chip, 2011, 11, 120
DOI: 10.1039/C0LC00209G

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