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 biosensor is an analytical tool that comprises two essential components—an immobilized
biocomponent, in intimate contact with a transducer that converts a biological signal into a …

Excess nitrogen in the body is converted to urea in the liver, and urea is disposed as a waste
product in urine. Urea concentration can change in body fluids such as blood due to the …

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 …

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 …

A novel urea biosensor based on immobilised recombinant urease as sensitive element and
ion sensitive field effect transistor as transducer was developed. Recombinant urease from …

Present study is specially designed for the recent advances in biosensors to detect and
quantify urea concentration. Urea (carbamide) is an organic compound made up of the …

This review summarizes the studies carried on the development of amperometric uric acid
biosensors over the past twenty years. Sensing principles, enzyme immobilization …

A potentiometric urea-sensitive biosensor using a NH+ 4-sensitive disposable electrode in
double matrix membrane (DMM) technology as transducer is described. The ion-sensitive …

Potentiometric biosensors based on urease (EC 3.5. 1.5.) immobilized on chitosan
membranes coupled to all-solid-state nonactin ammonium ion selective electrodes are …