Ammonia emissions from the agricultural sector give rise to numerous environmental and
societal concerns and represent an economic challenge in crop farming, causing a loss of …

This review is an attempt to retrace the chronicle that starts from the discovery of the role of
nickel as the essential metal ion in urease for the enzymatic catalysis of urea, a key step in …

In this paper, the electrocatalytic behavior of urea oxidation on a nickel electrode in alkaline
medium was investigated using various electrochemical techniques: cyclic voltammetry …

The abundance of urea in the natural environment is dictated by the fact that it is one of the
major products of mammalian protein metabolism. Due to the extensive use of urea in many …

Urea is the key nitrogenous waste product generated in the urea cycle in ureotelic animals.
Apart from that, urea and its derivatives are manufactured on a large scale for various …

The importance of nickel enzymes, where nickel serves as an essential cofactor, in Archaea,
bacteria, plants, and primitive eukaryotes, is well documented. 1 Despite the fact that no …

Single molecule reactions have been studied between nickel oxyhydroxide, urea, and the
hydroxide ion to understand the process of urea dissociation into ammonia, isocyanic acid …

Transition metals are both essential to enzymatic catalysis and limited in environmental
availability. These two biological facts have together driven organisms to evolve …

Urease, the first enzyme to be crystallized, contains a dinuclear nickel metallocenter that
catalyzes the decomposition of urea to produce ammonia, a reaction of great agricultural …

The broad distribution of ureases in leguminous seeds, as well as the accumulation pattern
of the protein during seed maturation, are suggestive of an important physiological role for …