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 ...

The most common method of measuring urease activity is to add a colorimetric assay agent for ammonia (e.g., Nessler’s reagent) to a solution of hydrolyzed urea. The absorbance of the solution at a ...

Young turkeys respond to protein, especially levels of the essential amino acids methionine and lysine. Ten amino acids are essential and must be provided in the diet to avoid restricting growth ...

Quantifying urease activity is an important task for Microbial Induced Calcite Precipitation research. A new urease activity microplate assay using a fluorescent pH indicator is presented. The method ...

Calcium carbonate precipitation and crystallization induced by urease enzyme to solidify soil is known as biocement technology. The uses of waste and cheap materials can make this technology more cost ...

The literature is inconsistent regarding evidence for boosted molecular mobility during enzyme catalysis, a phenomenon that challenges the common tenet that enzyme mobility is governed solely by ...

Agriculture contributes 25% to the greenhouse gas (GHG) emission. To mitigate the emissions of these GHGs (nitrous oxide (N2O), methane (CH4), and carbon dioxide (CO2) from agriculture under different ...

University of Cape Town researcher Suzanne Lambert has created a zero-waste building material made with human urine, which hardens at room temperature, as an alternative to environmentally taxing kiln ...

Our work provides insights into how cells solve the problem of delivering nickel, a toxic metal, to the active site of a metalloenzyme such as urease. Urease, a nickel-containing enzyme, is a ...