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Issue 14, 2018
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Low-power, low-cost urinalysis system with integrated dipstick evaluation and microscopic analysis

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Abstract

We introduce a coupled dipstick and microscopy device for analyzing urine samples. The device is capable of accurately assessing urine dipstick results while simultaneously imaging the microscopic contents within the sample. We introduce a long working distance, cellphone-based microscope in combination with an oblique illumination scheme to accurately visualize and quantify particles within the urine sample. To facilitate accurate quantification, we couple the imaging set-up with a power-free filtration system. The proposed device is reusable, low-cost, and requires very little power. We show that results obtained with the proposed device and custom-built app are consistent with those obtained with the standard clinical protocol, suggesting the potential clinical utility of the device.

Graphical abstract: Low-power, low-cost urinalysis system with integrated dipstick evaluation and microscopic analysis

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Article information


Submitted
16 May 2018
Accepted
15 Jun 2018
First published
19 Jun 2018

Lab Chip, 2018,18, 2111-2123
Article type
Paper

Low-power, low-cost urinalysis system with integrated dipstick evaluation and microscopic analysis

G. T. Smith, L. Li, Y. Zhu and A. K. Bowden, Lab Chip, 2018, 18, 2111
DOI: 10.1039/C8LC00501J

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