Since glucose oxidase has an end product called hydrogen peroxide, which is a harmful substance to bacteria, it can be used to fight bacteria, or sterilize objects (can have various uses such as in hand sanitizers, toothpaste, soap, etc), not just biosensors.
Another key part in the reaction would be C6H12O6, or glucose. Glucose oxidase can be applied to diabetics as mentioned earlier, as biosensors work by "keeping track of the number of electrons that pass through the enzyme by connecting it to an electrode and measuring the resultant charge" (From Biosensors to Food Preservative). This would allow biosensors to monitor blood glucose levels, improving the lives of diabetics. (From Biosensor to Food Preservative)
In the world today, enzymes are used in a variety of industries. They can be used to preserve food, to fight bacteria and illnesses, or to manufacture products that will benefit those in need. An enzyme that is almost hailed as a valuable gold mine today would be glucose oxidase. In the world of diabetics, it is a health problem that affects millions of people. With careful food management, the optimum blood glucose levels can be maintained. One significant use of glucose oxidase is to estimate the amount of glucose in a certain part, and has been applied to biosensors, making life easier for diabetics. It can be applied to used in "chemical, pharmaceutical, food, beverage, clinical chemistry, biotechnology and other industries" (US National Library of Medicine, Glucose oxidase--an overview)
In the pharmaceutical industry, glucose oxidase was discovered to be an antibiotic during the 1920's to the 1940's from a study of anti-bacterial properties in Penicillium fungi. A purer state of Notatin, which was also derived from Penicillium fungi, it was shown to have a high specificity for glucose, which was oxidized to gluconic acid. Its reaction equation would be: C6H1206 + 02 +H20...