Sekisui Chemical Co., Ltd.

Tokuyama Sekisui Co., Ltd.

Satoshi Haneda

Hiroki Iguchi

Ryoma Ishii

Hiroshi Yamauchi

Yuriko Manabe

Takeshi Wakiya

Yasuyuki Yamada

Saori Ueda

Masao Sasadaira

Takahiro Omura

Mai Yamagami

Yuuhei Arai

Nobuhiko Inui

Hiroyuki Morita

Yuuta Nakamura

Yuhei Arai

Yasuko Wada

Provided is a cell culture scaffold capable of allowing cell masses to be formed easily and efficiently. A cell culture scaffold according to the present invention includes a substrate; and a protrusion formed by patterning in a pattern of a dot or a line on the substrate, wherein the protrusion contains a synthetic resin, the synthetic resin contains at least a polyvinyl alcohol derivative or a poly(meth)acrylic resin, the protrusion has cell adhesion, and a portion of the protrusion located at the protrusion center position in plan view has an average height of 10 nm or more and 10 μm or less.

Scaffold material for cell culture and cell culture container

A scaffold material for cell culture having excellent cell colonization is provided. A scaffold material for cell culture according to the present invention includes a synthetic resin having a main chain and a graft chain, wherein the graft chain has a polydentate hydrogen-bonding group represented by the following formula (1) in a side chain: *—R-(A)(1) wherein R represents a group having 50 or less carbon atoms, Arepresents an amino group, a carboxyl group, a hydroxyl group, a sulfone group, an imino group, or a thiol group, i represents a natural number, n represents an integer of two or more and four or less, and * represents a bonding position with another atom constituting the graft chain; and Amay be identical or different from each other.

A scaffolding material for culturing a stem cell, which contains a synthetic resin, and has

Scaffolding material for stem cell cultures and stem cell culture method using same

Provided is a resin film having excellent cell extensibility in cell culture. The resin film formed of a scaffold material for cell culture containing a synthetic resin, the resin film having a compressive modulus of 5.5 GPa or more at a frequency of 1 Hz as measured using a nanoindenter device in ion-exchanged water in accordance with ISO14577-1 after being immersed in the ion-exchanged water at 37° C. for 24 hours.

Resin film formed by scaffold material for cell culture and container for cell culture

A scaffolding material for stem cell culture, which has a dispersion component γof the surface free energy of 24.5 or more and less than 45.0, and a dipole component γof the surface free energy of 1 or more and less than 20.0. According to the scaffolding material for stem cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of stem cells after seeding, and highly efficient cell proliferation.

A scaffolding material for culturing a cell, the scaffolding material for culturing a cell containing a synthetic resin, and having a nitrogen content of the synthetic resin of 0.1% by mass or more and 10% by mass or less. According to the scaffolding material for cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of cells after seeding, and highly efficient cell proliferation.

Scaffolding material for cell cultures and cell culture method using same

A scaffolding material for cell culture, which has a dispersion component γof the surface free energy of 24.5 mJ/mor more and less than 45.0 mJ/m, and a dipole component γof the surface free energy of 1.0 mJ/mor more and less than 20.0 mJ/m. According to the scaffolding material for cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of cells after seeding, and highly efficient cell proliferation.

A scaffolding material for culturing a stem cell, which contains a synthetic resin, and has a nitrogen content of the synthetic resin of 0.1% by mass or more and 10% by mass or less. According to the scaffolding material for stem cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of stem cells after seeding, and highly efficient cell proliferation.

Particles that can suppress the occurrence of cracking during a stress load in a connection part that connects two members to be connected are provided. The particles according to the present invention are particles used to obtain a connecting material for forming the connection part that connects two members to be connected, and the particles are used for forming the connection part such that thickness of the connection part after connection exceeds twice the average particle diameter of the particles before connection, or the particles have an average particle diameter of 0.1 &#x3bc;m or more and 15 &#x3bc;m or less, the particles have a 10% K value of exceeding 3000 N/mmand 20000 K/mmor less, and the particles have a particle diameter CV value of 50% or less.

Particles, connecting material and connection structure

A connecting material that can suppress the occurrence of cracking during a stress load in a connection part that connects two members to be connected, further can suppress the variation in thickness in the connection part to ensure the heat dissipation performance, and can increase the connection strength is provided. The connecting material according to the present invention is a connecting material used for forming the connection part that connects two members to be connected, the connecting material contains particles and metal atom-containing particles, the particles are used for forming the connection part such that thickness of the connection part after connection is twice or less the average particle diameter of the particles before connection, or the particles have an average particle diameter of 1 &#x3bc;m or more and 300 &#x3bc;m or less, the particles have a 10% K value of exceeding 3000 N/mmand 20000 N/mmor less, and the particles have a particle diameter CV value of 10% or less.

Connecting material and connection structure

Particles that can suppress the occurrence of cracking or peeling during a thermal cycle in a connection part that connects two members to be connected, further can suppress the variation in thickness in the connection part, and can increase the connection strength are provided. The particles according to the present invention are particles used to obtain a connecting material for forming a connection part that connects two members to be connected, and the particles are used for forming the connection part such that thickness of the connection part after connection is twice or less the average particle diameter of the particles before connection, or the particles have an average particle diameter of 1 &#x3bc;m or more and 300 &#x3bc;m or less, the particles have a 10% K value of 30 N/mmor more and 3000 N/mmor less, and the particles have a particle diameter CV value of 10% or less.

Particles that can suppress the occurrence of cracking or peeling during a thermal cycle in a connection part that connects two members to be connected are provided. The particles according to the present invention are particles used to obtain a connecting material for forming a connection part that connects two members to be connected, and the particles are used for forming the connection part such that thickness of the connection part after connection exceeds twice the average particle diameter of the particles before connection, or the particles have an average particle diameter of 0.1 &#x3bc;m or more and 15 &#x3bc;m or less, the particles have a 10% K value of 30 N/mmor more and 3000 N/mmor less, and the particles have a particle diameter CV value of 50% or less.

The present invention provides a thermally expandable microcapsule that has a high expansion ratio and durability at high temperatures, and is not likely to cause discoloration and odor when used for foam molding. The thermally expandable microcapsule of the present invention includes: a shell formed from a polymer; and a volatile expansion agent as a core agent encapsulated by the shell, the shell obtained by polymerizing a monomer composition that contains a nitrile monomer and a compound having a glycidyl group in a molecule, the shell exhibiting a value y of 50% or higher and a ratio y/x of 1.1 or higher, in which x represents a gel fraction at ordinary temperature, and y represents a gel fraction upon heating at 180&#xb0; C. for 30 minutes.

Growing community of inventors

Osaka, Japan

Satoshi Haneda