Two-dimensional biochemical imaging sensor for spatially resolved glutamate monitoring Original Research Article

A two-dimensional biochemical sensor has been developed for spatially resolved imaging and sensing with 0.2 μM glutamate sensitivity and fast response. The glutamate sensor was made by covalently immobilizing glutamate dehydrogenase onto flat silica plates. The two-dimensional sensor has the advantage of capturing simultaneous measurements at multiple points and may thus allow better understanding of many biological and chemical processes through spatially resolved sensing and imaging.