Sharp Kabushiki Kaisha Corporation

The University of Tokyo

Soo-Hyeon Kim

Kunihiko Iizuka

Teruo Fujii

Yoshihisa Fujimoto

Takeshi Mitsunaka

A size reduction in an optical system that detects a fluorescent photon is achieved. A photon detection operation of a photon detection unit () is controlled on the basis of timing of an irradiation operation of an excitation light source (), and after excitation light emitted to a microfluidic channel () is switched off, a fluorescent photon generated by a target flowing in the microfluidic channel () is detected.

In-liquid microparticle analysis system and in-liquid microparticle analysis method

An object trapping device enables efficiently trapping a plurality of objects in a specific combination. Each of a first electrode pair (), a second electrode pair (), and a third electrode pair () in an electrode pair group () is applied with an individual AC voltage and traps an object by dielectrophoresis generated in accordance with the AC voltage that is applied.

Object trapping device and object trapping device unit

Provided are a fluorescent testing system, a dielectrophoresis device, and a molecular testing method that measure only fluorescence emitted from a test object without separating excitation light and the fluorescence by an optical filter and that are able to prevent reduction of an application range of a type of the fluorescence. A fluorescent testing system () includes: an excitation light source () that radiates excitation light (L) to a test object (M) flowing in a microfluidic channel (); a silicon integrated circuit () provided with a photon detection unit () that detects light by a photodiode (); a dielectrophoresis electrode pair () that generates an electric field (EF) to draw the test object (M) onto the photodiode () by dielectrophoresis; and a control unit () that causes the excitation light source () to radiate the excitation light (L) to the test object (M) that is drawn and causes the photon detection unit (), after extinguishment of the excitation light (L), to detect fluorescence (L) emitted from the test object (M).

Fluorescent testing system, dielectrophoresis device, and molecular testing method

Provided are a fluorescent testing system, a molecular testing method, and a fluorescent testing method that can avoid enlargement and complication. A fluorescent testing system () includes: an excitation light source () that radiates excitation light (L) to protein to which a fluorescent probe is added; a silicon integrated circuit () including a photon detection unit () that detects light by a photodiode (); a holding layer () including a microwell () that is provided above the photodiode () and holds the protein to which the fluorescent probe is added; and a control unit () that causes the excitation light source () to radiate the excitation light (L) to the protein which. is held and to which the fluorescent probe is added and causes the photon detection unit (), after extinguishment of the excitation light (L), to detect fluorescence emitted from the protein to which the fluorescent probe is added.

Growing community of inventors

Tokyo, Japan

Soo-Hyeon Kim