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Issue 8, 2021
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Recent advances in lab-on-paper diagnostic devices using blood samples

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Abstract

Lab-on-paper, or microfluidic paper-based analytical devices (μPADs), use paper as a substrate material, and are patterned with a system of microchannels, reaction zones and sensing elements to perform analysis and detection. The sample transfer in such devices is performed by capillary action. As a result, external driving forces are not required, and hence the size and cost of the device are significantly reduced. Lab-on-paper devices have thus attracted significant attention for point-of-care medical diagnostic purposes in recent years, particularly in less-developed regions of the world lacking medical resources and infrastructures. This review discusses the major advances in lab-on-paper technology for blood analysis and diagnosis in the past five years. The review focuses particularly on the many clinical applications of lab-on-paper devices, including diabetes diagnosis, acute myocardial infarction (AMI) detection, kidney function diagnosis, liver function diagnosis, cholesterol and triglyceride (TG) analysis, sickle-cell disease (SCD) and phenylketonuria (PKU) analysis, virus analysis, C-reactive protein (CRP) analysis, blood ion analysis, cancer factor analysis, and drug analysis. The review commences by introducing the basic transmission principles, fabrication methods, structural characteristics, detection techniques, and sample pretreatment process of modern lab-on-paper devices. A comprehensive review of the most recent applications of lab-on-paper devices to the diagnosis of common human diseases using blood samples is then presented. The review concludes with a brief summary of the main challenges and opportunities facing the lab-on-paper technology field in the coming years.

Graphical abstract: Recent advances in lab-on-paper diagnostic devices using blood samples

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Article information


Submitted
22 Dec 2020
Accepted
26 Mar 2021
First published
29 Mar 2021

Lab Chip, 2021,21, 1433-1453
Article type
Critical Review

Recent advances in lab-on-paper diagnostic devices using blood samples

W. Lee, H. Ng, C. Hou, C. Lee and L. Fu, Lab Chip, 2021, 21, 1433 DOI: 10.1039/D0LC01304H

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