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    The detection and identification of body fluids at a crime scene shed light on the events which might have occurred and the people involved in the crime; the techniques used being lengthy, makes the on-scene detection a tough process to carry out and handle. This study aims to develop an on-spot detection method for serological testing using silica gel encapsulation technique and a modified microfluidic paper-based analytical device (μPADs). Kastle-Meyer reagent was incorporated into the μPAD and Silica Gel plate and was subsequently validated for the detection of blood. This study revealed that the μPAD was a better option. The emerging technique of μPADs allows a cost-effective and simple method of detection for body fluids. The fibrous network of the paper is manipulated to fabricate a guided channel for the fluid flow. The guided channels in the modified μPADs were fabricated by patterning a hydrophobic barrier out of wax. The analyte of interest for this study is blood but the principle can be modified to include other biological fluids. Copyright © 2020 Elsevier B.V. All rights reserved.


    Rohith Krishna, Esha Maria Anil. A comparative analytical study on reagent-fused silica gel plate and wax painted paper-based microfluidic device for serological testing. Forensic science international. 2020 Dec;317:110517

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    PMID: 32979844

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