Jsr Life Sciences Corporation

Jsr Corporation

Jsr Micro N.v.

Shunsuke Onogi

Satoshi Nakamura

Takashi Ichii

Tomoaki Haga

Toshinari Honda

Takeaki Masuda

Tomoyuki Kamide

An affinity carrier may have improved alkali resistance. An immunoglobulin-binding protein containing a mutant polypeptide chain, as well as an affinity carrier containing a solid-phase carrier to which the immunoglobulin-binding protein is bound, may be a mutant polypeptide chain having an amino acid sequence having at least 85% identity to an amino acid sequence indicated by any of SEQ ID NO: 1-6 and 57-62, having a predetermined mutation, and having immunoglobulin-binding activity.

Immunoglobulin-binding protein, and affinity carrier using same

The present invention relates to composite particles, coated particles, a method of producing composite particles, a ligand-containing solid phase carrier, and a method of detecting or separating a target substance in a sample. The above described composite particles each contains an organic polymer and inorganic nanoparticles, wherein the content of the inorganic nanoparticles in the composite particles is more than 80% by mass, and wherein the composite particles have a volume average particle size of from 10 to 1,000 nm.

Composite particles, coated particles, method for producing composite particles, ligand-containing solid phase carrier and method for detecting or separating target substance in sample

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Minato-ku, Japan

Shunsuke Onogi