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
- The Cross-Reactivity of the Cannabinoid Analogs (delta-8-THC, delta-10-THC and CBD) and their metabolites in Urine of Six Commercially Available Homogeneous Immunoassays, Grant Report
- Memory Enhancement Techniques for Interviewing Victims and Witnesses of Crime
- Drug Use as a Predictor of Rearrest or Failure to Appear: A User's Guide to the Machine-Readable Files and Documentation, Original Instruments, and Codebook