1. 🧪 Clinical Diagnosis and Biochemical Analysis

This is one of the most classic and widespread applications of urease. By specifically hydrolyzing urea and detecting the products, the urea concentration in blood and urine can be accurately measured. This test is a key indicator for clinically evaluating kidney filtration function and diagnosing kidney-related diseases.

2. 🍷 Food Industry (Alcohol Safety)
In the brewing industry, urease is used to improve the safety of alcoholic beverages. Residual urea in fermented beverages such as wine and rice wine reacts with alcohol to form carcinogenic ethyl carbamate. Adding urease can effectively decompose urea precursors in the wine, significantly reducing the content of this harmful substance. Studies have shown that urease treated with immobilization technology can achieve a urea degradation rate of over 93% in rice wine within 24 hours.

3. 🏥 Medical and Biomedical Engineering
In this field, the application of urease is mainly based on its ability to remove or reduce urea/ammonia:

• Artificial Kidney (Dialysis):
Urease can be made into microcapsules and combined with adsorbents such as ion exchange resins to assemble an “artificial kidney” dialysis system, used to remove excess urea and non-protein nitrogen from the blood of patients with renal failure.

• Prevention and Treatment of Hepatic Coma:
Hepatic coma is associated with high blood ammonia levels. Using urease to stimulate the body to produce antibodies can inhibit the activity of bacterial urease in the gastrointestinal tract, thereby reducing the ammonia produced by urea hydrolysis and achieving the purpose of preventing and treating hepatic coma.

4. 🌍 Environmental Monitoring and Bioremediation
The detection function of urease has been extended to the environmental field, used to determine the urea content in natural water bodies and environmental wastewater. It is also being studied for use in bioremediation technology to treat urea-containing agricultural or industrial wastewater, converting pollutants into harmless substances.

5. 🏗️ Emerging Industries and Biotechnology
These are some cutting-edge applications that demonstrate the potential of urease:

• Self-Healing Concrete:
Based on microbial-induced carbonate precipitation technology, the carbonate ions produced by urease hydrolysis of urea combine with calcium ions to form calcium carbonate precipitates, which can automatically fill and heal microcracks in concrete.

• Other biotechnology applications:
These include controlling pH in bioreactors and wastewater recycling in space life support systems.