Fabrication and Characterization of an Amperometric Glucose Sensor on a   Flexible Polyimide Substrate
  This study details the use of printing and other additive processes to fabricate a novel amperometric glucose sensor. The sensor was fabricated using a Au coated 12.7 micron polyimide film as a starting material, where micro-contact printing, electrochemical plating and chloridization, electrohydrodynamic jet (e-jet) printing, and spin coating were used to pattern, deposit, print, and coat functional materials, respectively. We have found that e-jet printing was effective for the deposition and patterning of glucose oxidase inks between ~5 to 1000 micron in width, and we have demonstrated that the enzyme was still active after printing. The thickness of the permselective layer was optimized to obtain a linear response to glucose concentration up to 32 mM. For these sensors no response to acetaminophen, a common interfering compound, was observed. 
Xiaosong Du, Christopher J. Durgan, David J. Matthews, Joshua R.   Motley, Xuebin Tan, Kovit Pholsena, L\'iney \'Arnad\'otti...
cond-mat.mtrl-sci