PROBLEM TO BE SOLVED: To acquire data on a biological tissue, etc. electrically or electrochemically in consideration of biocompatibility of a quality of material, fragility against contact, electric conductivity, electrochemical stability, and low manufacturing cost.SOLUTION: A microneedle includes an insulator having a first surface that comes in close contact with an object and a second surface which is a rear surface of the first surface, a plurality of conductive projection parts provided to the insulator, whose tips are exposed from the first surface of the insulator, and a carbon continuous film with a thickness of 1 μm or more, which coats the projection parts. A microneedle sensor is applied on a surface of a living body or a substance originating from a living body, and data on a tissue of the living body or the substance originating from the living body can be electrically or electrochemically acquired with a high degree of reliability.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】生体組織等に関するデータを電気的または電気化学的に得るために、材質の生体適合性、接触に対する脆さ、電気導電性、電気化学的な安定性及び低コストで製造できること。【解決手段】対象物に密着する第1面及びその裏面である第2面を有する絶縁体と、この絶縁体に設けられ、先端部が当該絶縁体の前記第1面から露出し、導電性を有する複数の突起部と、この突起部に被覆された厚さ1μm以上の炭素の連続膜を備えているため、生体、または生体由来の物質の表面上に適用し、前記生体の組織、または生体由来の物質に関するデータを電気的または電気化学的に高信頼性で得ることが可能となる。【選択図】 図1
