Sumitomo Electric Industries, Limited

National University Corporation Tokai National Higher Education and Research System

Cyfuse Biomedical K.k.

Yoko Sugiyama

Asako Motomura

Hiroshi Suganuma

Akinori Kimura

Ryuji Kato

Ryohei Yamamoto

Mayu Shibuta

Yudai Miyazaki

Shizuka Akieda

A method for quality evaluation includes emitting measurement light having a wavelength of 300 nm or more and 2,000 nm or less to a cell mass and acquiring a plurality of light intensity information corresponding to each of a plurality of measuring positions in the cell mass, generating a feature amount from a variation of the acquired plurality of light intensity information, and evaluating quality of the cell mass using the generated feature amount as an index.

Quality evaluation method

A fine particle measurement device includes a support stand () that has a groove (F) extending in a predetermined direction and is configured to support in the groove an observation container (), which has an elongate shape and accommodates a liquid sample containing a fine particle therein such that an extending direction of the groove (F) coincides with a longitudinal direction of the observation container (); and an imaging unit () that is configured to capture an image of the fine particle in the observation container () at a position where the support stand is out of a field of view, the observation container () being supported by the support stand ().

Fine particle measurement device

An observation container () includes: a bottom portion that includes a bottom wall (A) (first plate part) and a bottom wall (B) (second plate part) which intersect each other and that is configured to accommodate a liquid sample O as a sample containing microparticles to be imaged by imaging units (A) and (B) serving as an imaging device; and a region that has transparency with respect to a wavelength of light used for observation of the microparticles.

Observation container and microparticle measurement device

A quality evaluation method includes, acquiring light intensity distribution information related to a distribution of absorbance with respect to the measurement light in the cell mass by irradiating a cell mass with measurement light including near-infrared light; and evaluating a quality of the cell mass based on the information. A quality evaluation device includes a light source that irradiates a cell mass with measurement light including near-infrared light; a light receiving unit that, by receiving transmitted light or diffusely reflected light from the cell mass, acquires light intensity distribution information related to a distribution of absorbance with respect to the measurement light in the cell mass, the transmitted light or the diffusely reflected light being emitted from the cell mass by irradiating the cell mass with the measurement light; and an analyzing unit that evaluates a quality of the cell mass based on the information.

Quality evaluation method and quality evaluation device

Sample holder

Growing community of inventors

Osaka, Japan

Yoko Sugiyama