Patent ID: 9140714
Filing Date: 2015-09-22
Classification: B01L,G01N

Abstract:
1. A bio-sensing device comprising: a first platform configured to support a microplate, the microplate having a plurality of wells, each of the wells storing a reagent and a plurality of microbeads; a second platform movably placed below the first platform; at least one first magnetic element located on the second platform, the at least one first magnetic element moving along with the second platform to magnetically attract the microbeads in the wells; and at least one second magnetic element located on the second platform, the at least one second magnetic element moving along with the second platform to demagnetize the microbeads in the wells, wherein magnetism of the at least one first magnetic element is opposite to magnetism of the at least one second magnetic element, wherein the number of the at least one first magnetic element is plural, the first magnetic elements are arranged in arrays on the second platform, each of the first magnetic elements corresponds to at least one of the wells, and the second platform approaches the first platform, such that the first magnetic elements magnetically attract the microbeads in the at least one of the wells, wherein the number of the at least one second magnetic element is plural, the first magnetic elements are located on a first surface of the second platform, the second magnetic elements are located on a second surface of the second platform, the first surface faces against the second surface, and the second platform reverses relative to the first platform between a first position and a second position, such that the first surface of the second platform faces the first platform in the first position, and the second surface of the second platform faces the first platform in the second position.