ASCORBIC acid has been found to have a marked inhibitory effect on urease activity. With some preparations of the enzyme, the formation of ammonia from urea is completely inhibited by a concentration ...

Carbonic anhydrases (CAs) are widespread enzymes in bacteria, archaea and eukaryotes, and catalyze a crucially important physiological reaction: the hydration of carbon dioxide to bicarbonate and ...

Abstract: A fiber-optic urea sensor based on surface plasmon resonance (SPR) and Mach-Zehnder interference (MZI) combined principle was designed and implemented. By plating gold film on the ...

Abstract: A potentiometric urea biosensor is prepared by the immobilization of urease directly onto the surface of a solid-state ammonium ion-selective electrode. The enzyme is immobilized by ...

The agricultural industry widely uses urea, a white crystalline solid containing 46 percent nitrogen, as an animal feed additive and fertilizer. Here, we’ll focus on its role as a nitrogen fertilizer.