摘要:
The coating thickness and uniformity of spin-on deposition layers on semiconductor wafers is controlled through the in situ control of the viscosity and homogeneity of the mixture of precursor material and solvent material. The thickness of the deposited material is selected and the viscosity required at a given spin rate for the selected thickness is automatically mixed. Sensing and control apparatus are employed to ensure that the uniformity and viscosity required is maintained before dispensing onto said semiconductor wafer. Low-K dielectric materials of selected thickness are deposited in a uniform coating.
摘要:
N-hydroxysuccinimide acrylate ester monomers are described which provide N-hydroxysuccinimide derivatized monomers for the formation of polymeric cell culture surfaces suitable for culture of difficult to culture cells including undifferentiated embryonic stem cells. Methods of making the monomers and are also described.
摘要:
N-hydroxysuccinimide acrylate ester monomers are described which provide N-hydroxysuccinimide derivatized monomers for the formation of polymeric cell culture surfaces suitable for culture of difficult to culture cells including undifferentiated embryonic stem cells. Methods of making the monomers and are also described.
摘要:
A method for reducing the modulus of polymer silicone hydrogel compositions by employing monomeric polysiloxanes endcapped with trimethylsilyl to reduce the crosslinking density of the hydrogel. The synthesis consists of a single vessel acid catalyzed ring opening polymerization and may be employed to produce copolymers useful as hydrogel contact lens materials.
摘要:
A method for producing a cell culture article having a synthetic polymer layer for incubating with cells includes diluting one or more (meth)acrylate monomers in a solvent and dispersing the diluted monomers on a surface of the cell culture article. Some or substantially all of the solvent is removed and the monomers are then polymerized on the surface of the article to form the synthetic polymer layer attached to the surface of the article.
摘要:
A composition that includes at least one crosslinkable monomer; at least one hydrophobic monomer; and at least one dielectric constant enhancing agent selected from dielectric enhancing monomers, ferroelectric particulates, and electroactive polymers. Coatings including the polymer of compositions, and articles including electrically isolating layers are also disclosed.
摘要:
A synthetic cell culture surface, prepared from a mixture of at least three (meth)acrylate monomers where one of the monomers has an N-hydroxysuccinimide moiety is provided, which supports the growth of cells including undifferentiated human embryonic stem cells in defined media. Methods for preparing the cell culture surface is also provided.
摘要:
A composition that includes at least one crosslinkable monomer; at least one hydrophobic monomer; and at least one dielectric constant enhancing agent selected from dielectric enhancing monomers, ferroelectric particulates, and electroactive polymers. Coatings including the polymer of compositions, and articles including electrically isolating layers are also disclosed.
摘要:
A method for reducing the modulus of polymer silicone hydrogel compositions by employing monomeric polysiloxanes endcapped with trimethylsilyl to reduce the crosslinking density of the hydrogel. The synthesis consists of a single vessel acid catalyzed ring opening polymerization and may be employed to produce copolymers useful as hydrogel contact lens materials.
摘要:
A composition that includes at least one crosslinkable monomer; at least one hydrophobic monomer; and at least one dielectric constant enhancing agent selected from dielectric enhancing monomers, ferroelectric particulates, and electroactive polymers. Coatings including the polymer of compositions, and articles including electrically isolating layers are also disclosed.