Because their chemical and physical properties may be tailored over a wide range of
characteristics, the use of polymers is finding a permanent place in sophisticated electronic …

Potentiometric ion sensors or ion-selective electrodes (ISEs) are an important subgroup of
electrochemical sensors. 1-3 ISEs are characterized by small size, portability, low-energy …

Urea is the major end product of nitrogen metabolism in humans, which is eliminated from
the body mainly by the kidneys through urine but is also secreted in body fluids such as …

This paper reviews recent developments in urea biosensors, as reported in the literature.
The advantages and roles of various matrices, different strategies for biosensor construction …

A large variety of potentiometric biosensors is developed using biocatalytic and bioaffinity-
based biosensing schemes. However, only few of them could be applied for the biomedical …

Fluorescent covalent organic frameworks (COFs) are attracting more and more attentions.
However, it is very difficult to obtain COFs with strong fluorescence due to fluorescence …

Abstract Development of a conductometric biosensor for the urea detection has been
reported. It was created using a non-typical method of the recombinant urease …

A renewable potentiometric urease inhibition biosensor based on self-assembled gold
nanoparticles has been developed for the determination of mercury ions. Gold nanoparticles …

A urea biosensor has been prepared by covalent binding of urease directly to the surface of
an ammonium-sensitive field effect transistor (FET). The NH4+-sensitive membrane is based …

ABSTRACT A new amperometric urea biosensor based on gold nanoparticle embedded
poly (propylene-co-imidazole) was developed for the determination of urea. The urease …