Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7231180 | Biosensors and Bioelectronics | 2016 | 29 Pages |
Abstract
The proposed sensor is based on a novel white, uncharged, and non-luminescent functional nonwoven nanofibre mat (Tiss®-Link) formed by hydrophilic nanofibres of 300 nm of diameter functionalized with a high concentration of active vinyl groups (330 µmol gâ1). It is used to carry out a kinetically controlled covalent immobilisation of tryptamine via Michael type-reaction. The transduction of the sensor is phosphorescence; the covalently immobilized tryptamine is quantified by SS-RTP, obtaining a detection limit of 6 ng mLâ1 with short response times (15 min). The applicability of the sensor was demonstrated by analysing tryptamine in 10 different varieties of beers, obtaining recovery percentages close to 100%.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Teresa Ramon-Marquez, Antonio L. Medina-Castillo, Alberto Fernandez-Gutierrez, Jorge F. Fernandez-Sanchez,