ArticleAnalytical methods : advancing methods and applications2021
Dry storage of multiple reagent types within a paper microfluidic device for phenylalanine monitoring.
Article in Analytical methods : advancing methods and applications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- A comprehensive review of lateral flow assays in rapid livestock and poultry disease diagnostics.Journal of advanced veterinary and animal research · 2026Article
- Ultra-Sensitive 3D Lateral Flow Assay Device for SARS-CoV-2 Detection Based on One-Step Dual-Signal Amplification.Analytical chemistry · 2025Article
- Field‑use device for the electrochemical quantification of carbamazepine levels in a background of human saliva.Journal of applied electrochemistry · 2023Article
- Multiplexed paper-based assay for personalized antimicrobial susceptibility profiling of Carbapenem-resistant Enterobacterales performed in a rechargeable coffee mug.Scientific reports · 2022Article
- Paper-Based Point-of-Care Testing of SARS-CoV-2.Frontiers in bioengineering and biotechnology · 2021Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The degradation of biochemical reagents on the timescale of weeks can severely limit the utility of microfluidic assays intended for field use, and is a challenging aspect of microfluidic device development in general. Our study focuses on the evaluation of the dry storage stability of three types of reagents: (i) the colorimetric reagents nitroblue tetrazolium and 1-methoxy-5-methylphenazinium methylsulfate, (ii) the enzyme phenylalanine dehydrogenase, and (iii) the coenzyme β-nicotinamide adenine dinucleotide hydrate, within the context of a phenylalanine monitoring device. We have demonstrated stable dry storage of each of the reagents, over the time span of approximately one month. Drying the colorimetric reagents under nitrogen was found to largely suppress reagent degradation and the appearance of nonspecific signal, while the enzyme and coenzyme retained activity when stored dry for a month without additional processing or chemical additives. Finally, phenylalanine monitoring devices with all three reagent types dried down and stored for 15 days showed comparable functionality to devices containing freshly-dried reagents - a key milestone to enable future clinical testing.
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Registered trials
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