Novel amperometric glucose biosensor based on covalent immobilization of glucose oxidase on poly(pyrrole propylic acid)/Au nanocomposite

► A glucose biosensor is fabricated with immobilization of glucose oxidase on poly(pyrrole propylic acid)/Au nanocomposite. ► The biosensor seems to be simple to prepare, fast to respond, inexpensive and sensitive. ► The results of the experiments show that this biosensor a promising candidate for portable glucose biosensor.