Nissan Chemical Industries Limited

Nissan Chemical Corporation

Natsuki Abe

Yoshiomi Hiroi

Taito Nishino

Kohei Suzuki

Masaki Kitahara

Ayako Otani

Ayako Aihara

Junko Katayama

The invention provides a method for producing a polymer used as a base film for cell culture which comprises (i) preparing a mixture containing (a) a monomer of formula (I): wherein Uand Ueach independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, Rrepresents a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, and Rrepresents a linear or branched alkylene group having 1 to 5 carbon atoms, (b) a radical polymerization initiator, and (c) an organic solvent, and (ii) preparing a polymer by raising a temperature of the mixture under stirring to polymerize the monomer. The invention also provides methods of producing a base film for cell culture and a cell culture container.

Method for producing polymer used as base film for cell culture, and cell culture container

The invention relates to a cell culture container that inhibits adhesion of cells, a method for manufacturing the same and a method for producing cell aggregates using the same. The cell culture container has a coating film containing a copolymer having a recurring unit which contains a group represented by formula (a) and a recurring unit which contains a group represented by formula (b): wherein U, U, U, Uand Ueach independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, and Anrepresents an anion selected from the group consisting of a halide ion, an inorganic acid ion, a hydroxide ion and an isothiocyanate ion, on at least a part of a surface of the container, and the volume of the container is 20 μL or less.

Cell culture container having minute volume

The invention provides a medium additive, medium composition and a culture method and the like, capable of efficiently culturing cells or tissues in a well dispersed state, and further, permitting cell image analysis of the cells or tissues. The medium additive or medium composition contains agar, which preferably is a low molecular weight agar having a weight average molecular weight of 10,000-60,000. Using same, cells or tissues can be cultured in a well-dispersed state in a medium, and a proliferation promoting effect for the cells or tissues can also be obtained. In addition, the cells can be cultured in any of a floating state and a precipitated state by adjusting the concentration of the aforementioned agar.

Culture medium additive, culture medium composition, and method for culturing cells or tissue using same

The invention provides a coating agent for a flow passage which comprises a copolymer containing a recurring unit which contains an organic group of the formula (a) wherein Uand Uare defined herein, and a recurring unit which contains an organic group of the formula (b) wherein U, U, U, and Anare defined herein. The invention also provides a flow passage device having the coating agent for a flow passage on at least part of an inner surface of a flow passage, a platelet-producing flow passage device and a method for manufacturing the same.

Coating agent for flow passage

The present invention provides a copolymer obtainable by polymerizing a monomer mixture which contains at least compounds of the following formulae (A), (B) and (C), wherein T, T, T, U, U, U, Uand U, Q, Qand Q, R, Rand R, Anand m are as defined in Specification and Claims, and so on. The copolymer of the present invention can be utilized as an ion complex material excellent in a function of inhibiting adhesion of a biological substance. 

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Shiraoka, Japan

Natsuki Abe