NCJ Number
303250
Journal
Analytical Biochemistry Volume: 595 Dated: April 2020
Date Published
2020
Annotation
This note describes a four-channel paper microfluidic device (μPAD) that uses gold nanoparticles (AuNPs) as colorimetric sensors and specifically tailored aptamers to capture a set of targeted drugs, including cocaine, codeine and methamphetamine.
Abstract
The design uses salt-induced aggregation of AuNPs to produce a color change that indicates the presence of target analytes. In the absence of the targets, the aptamers bind to AuNPs, preventing aggregation. This μPAD was developed by optimizing the concentrations of aggregating agents, AuNPs and aptamers. The resultant device is sensitive and specific, producing a positive result upon detection of the target analyte. (publisher abstract modified)
Date Published: January 1, 2020
Downloads
Similar Publications
- Drifting Into Dealing: Becoming a Cocaine Seller (From An Exploratory Study of Indirect Criminal Justice Pressures on Cocaine Sellers, 1989, 1-31, Dan Waldorf -- See NCJ-138615)
- Atwood Program, Lexington Federal Medical Center
- Evaluating the Robustness and Ruggedness of a Statistical Model for Comparison of Mass Spectral Data for Seized Drug Identification