Patent ID: 7608417
Filing Date: 2009-10-27
Classification: G01N

Abstract:
1. A cell electro-physiological sensor comprising: a sensor chip including a partition board having a first surface and a second surface opposite to the first surface of the partition board, the partition board having a through-hole provided therein, the through-hole having a first opening, a second opening, and a wall, the first opening of the through-hole opening to the first surface of the partition board, the second opening of the through-hole opening at the second surface of the partition board, the through-hole having substantially the same diameter as the through-hole extends from the first opening to the second opening; a first region provided on the first surface of the partition board, the first region contacting the first opening of the through-hole, the first region being arranged to hold cell suspension; and a second region provided on the second surface of the partition board, the second region contacting the second opening of the through-hole, wherein an atomic ratio of carbon at the first surface of the partition board is 9 atomic percent or greater and is not greater than 15 atomic percent of a composition of the first surface of the partition board.