Abstract: This paper presents the development of a simple, low cost, the new type of urea sensor, and suitable for water quality monitoring. Here, urease is immobilized on the electrodes using ...

† School of Chemistry and Chemical Engineering, Shihezi University, 221 North Fourth Road, Shihezi 832003, People’s Republic of China ‡ Agricultural Techniques Extension Center, Xinjiang Agricultural ...

The brain is made of nerve cells and gets oxygen and nutrients from blood vessels. Cerebrospinal fluid protects and nourishes the brain. The brainstem connects the brain to the spinal cord and ...