A new layout for screen-printed electrodes: Front/back geometry

A front to back layout for screen printed electrodes has been developed to obtain L-electrodes that can eventually be housed in hypodermic needles for in vivo measurements. Laboratory scaling and testing used such electrodes, housed in PVC disposable micropipettes tips. Discussion about lay-out, chemical and physical treatments, reproducibility of the devices as chemical sensors or biosensors by using a model enzyme as glucose oxydase is reported.