▎ 摘　　要

NOVELTY - The region has a nano- composite thin film layer formed on a detecting electrode body, where nano-composite film layer is made of platinum black graphene or nano gold graphene material and thickness of the nano-composite film layer is determined for about 0.05-0.2 micrometer. The detecting electrode main body is provided with a round micro-electrode. A set of arc-shaped micro-electrodes are arranged with the round micro-electrode. The nano-composite film layer is formed on the round micro-electrode and the set of the arc-shaped micro-electrodes. USE - Neurotransmitter active site detection electrode. ADVANTAGE - The electrode improves neurotransmitter catalytic ability and reduces electrode impedance and thermal noise. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a planar micro-electrode array (2) a micro-electrode array manufacturing method. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a neurotransmitter active site detection electrode. '(Drawing includes non-English language text)'