ELECTROCHEMICAL MEASUREMENT MICROARRAY AND METHOD FOR PRODUCING ELECTROCHEMICAL MEASUREMENT MICROARRAY

• Main Authors: UCHIDA HIDEKAZU, IWABUCHI YASUO
• Format: Patent
• Language: English; Japanese
• Published: 26.09.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide a two-dimensional chemical measurement device having a higher sensitivity, by using a pn junction of which a large and high quantum efficiency can be expected from a Schottky junction.SOLUTION: An electrochemical measurement microarray 1 includes an electrochemical sensor 20, a well array plate 10 bonded thereon. The well array plate 10 is provided with a plurality of through-holes 12 corresponding to wells 11 in which liquid analysis targets D are individually inserted. The electrochemical sensor 20 includes a pn junction semiconductor layer electrically conducted with a bottom part of the well 11. The well array plate 10 is formed by joining with the electrochemical sensor 20 such that current flows through the course of the pn junction semiconductor layer, the analysis targets, and the inside of the well, and the outer side of the well when an oxidation reduction reaction of the analysis target D which exists in the well 11 occurs.SELECTED DRAWING: Figure 2 【課題】ショットキー接合より内蔵電位の大きく、高い量子効率を望めるｐｎ接合を用いることで、より感度の高い二次元化学測定デバイスを提供する。【解決手段】電気化学センサ２０と、その上に接合されてなるウェルアレイプレート１０とを備え、ウェルアレイプレート１０は液状の分析対象物Ｄを個別に入れるウェル１１に対応する複数の貫通孔１２を備え、電気化学センサ２０は、ウェル１１の底部と導通可能なｐｎ接合型半導体層を備え、ウェルアレイプレート１０はウェル１１内に存在する分析対象物Ｄの酸化還元反応の生じる際に、前記ｐｎ接合型半導体層、前記分析対象物、前記ウェルの内側および前記ウェルの外側の経路を電流が流れるように電気化学センサ２０と接合して成る電気化学計測型マイクロアレイ１。【選択図】図２