Cus Nanotubes For Ultrasensitive Nonenzymatic Glucose Sensors

摘要

CuS nanotubes made up of nanoparticles were successfully prepared in large quantities in an O/W microemulsion system under low temperature; the as-prepared CuS nanotube modified electrode was used as an enzyme-free glucose sensor.rnDiabetes mellitus is a group of metabolic diseases afflicting about 200 million people worldwide. For these patients, frequent testing of physiological glucose levels is critical to confirm that treatment is working effectively and to avoid a diabetic emergency. The rising demand for glucose sensors with high sensitivity, high reliability, fast response, and excellent selectivity has driven tremendous research efforts for decades. Amperometric glucose biosensors are one such promising methodology. Most previous studies on this subject involved the use of the enzyme glucose oxidase (GODx), which catalyzes the oxidation of glucose to gluconolactone. Owing to the nature of enzymes, the most common and serious problem with enzymatic glucose sensors lies in their lack of long-term stability.