A simple approach to develop a paper-based biosensor for real-time uric acid detection

Abstract

The current work reports the development of an inexpensive real-time sensing module for uric acid detection on simple, disposable paper substrate. Detection is based on a capacitive measurement system using...

A Novel Approach to Fabricating a Screen-Printed Electrode Based on a Gold Nanorod–Graphene Oxide Composite for the Detection of Uric Acid

“…2 Polycaprolactone/polyethylene imine/uricase/quantum dot. 3 dipicolinic acid. 4 chitosan/glucose oxidase/Prussian blue-graphite.…”

“…The standard methods for the detection of uric acid in clinical laboratories, such as fluorescence and chemiluminescence, have several drawbacks; they are tedious, require expensive reagents and a trained person to operate the instruments, and are difficult to use in autonomous processes [2]. One alternative method that could be developed for the rapid, reliable, and potentially early detection of uric acid is the electrochemical method, which utilizes a screen-printed electrode (SPE) instead of a traditional electrode [3]. A SPE consists of a working electrode (WE), reference (RE), and counter electrode (RE), which can be fabricated by preparing conductive ink as electrode modifiers in advance [4].…”