Provided are methods of controlling disassociation of cells from a carrier, compositions, and methods of collecting cells. The methods of controlling disassociation of cells from a carrier may include contacting a polymeric carrier with one or more digesting agents to disassociate at least a portion of a plurality of cells from the polymeric carrier. The polymeric carrier may be crosslinked with a crosslinker including at least one of a redox sensitive moiety, a UV light sensitive moiety, a pH sensitive moiety, and a temperature sensitive moiety.

The present disclosure relates to a substrate in which an antimicrobial coating agent including urushiol and an inorganic antimicrobial agent is fixed and coated onto the surface, and a method for antimicrobial coating on the surface of the substrate.

A vulcanized rubber composition according to one aspect of the present invention comprises a rubber component containing a diene-based rubber and a filler containing silica, and a total of an amount of monosulfide crosslinks and an amount of carbon-carbon crosslinks is 30% to 55% based on an amount of total crosslinks of the vulcanized rubber composition.

A vulcanized rubber composition according to one aspect of the present invention comprises a rubber component containing a diene-based rubber and a filler containing silica, and a total of an amount of monosulfide crosslinks and an amount of carbon-carbon crosslinks is 30% to 55% based on an amount of total crosslinks of the vulcanized rubber composition.

An α-aminoketone-containing polyfunctionalized macromolecular photoinitiator, which is prepared from a double-bond-containing α-aminoketone micromolecular photoinitiator A and a polythiol compound B through thiol-ene click reaction. A preparation of the α-aminoketone-containing polyfunctionalized macromolecular photoinitiator and an application of the α-aminoketone-containing polyfunctionalized macromolecular photoinitiator in the radiation curing are also provided.

An α-aminoketone-containing polyfunctionalized macromolecular photoinitiator, which is prepared from a double-bond-containing α-aminoketone micromolecular photoinitiator A and a polythiol compound B through thiol-ene click reaction. A preparation of the α-aminoketone-containing polyfunctionalized macromolecular photoinitiator and an application of the α-aminoketone-containing polyfunctionalized macromolecular photoinitiator in the radiation curing are also provided.

Embodiments in accordance with the present invention encompass compositions encompassing a latent organo-ruthenium compound, a photosensitizer and one or more monomers which undergo ring open metathesis polymerization (ROMP) when said composition is exposed to suitable actinic radiation to form a substantially transparent film or a three dimensional object. Surprisingly, the compositions are very stable at ambient conditions to temperatures up to 80° C. for several weeks and undergo mass polymerization only when subjected to actinic radiation under inert atmosphere such as for example a blanket of nitrogen. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as 3D printing materials, coatings, encapsulants, fillers, leveling agents, among others.

Embodiments in accordance with the present invention encompass compositions encompassing a latent organo-ruthenium compound, a photosensitizer and one or more monomers which undergo ring open metathesis polymerization (ROMP) when said composition is exposed to suitable actinic radiation to form a substantially transparent film or a three dimensional object. Surprisingly, the compositions are very stable at ambient conditions to temperatures up to 80° C. for several weeks and undergo mass polymerization only when subjected to actinic radiation under inert atmosphere such as for example a blanket of nitrogen. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as 3D printing materials, coatings, encapsulants, fillers, leveling agents, among others.

To provide a plastic lens which can absorb light with a wavelength of 400 to 420 nm with sufficiently high efficiency but is reduced in the absorption of light with a wavelength of around 420 nm or longer, is less affected by harmful light, suppresses yellow coloration and therefore has excellent appearance, suppresses yellowish discoloration over time, and has excellent heat resistance, light resistance, and also optical performance, particularly an excellent Abbe's number. The plastic lens is characterized by containing an ultraviolet absorbing agent represented by the following formula (I): ##STR00001##
(in the formula, R.sup.1 to R.sup.8 each independently represent a monovalent group such as a hydrogen atom, R.sup.9 represents a monovalent sulfur-containing group represented by the following formula (i): ##STR00002##
(in the formula, R.sup.10 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.11 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.12 represents a monovalent hydrocarbon group with 1 to 20 carbon atoms; the total number of carbon atoms in R.sup.10, n number of R.sup.11, and R.sup.12 is 30 or less; m represents an integer of 0 or 1; and n represents an integer of 0 to 3)), and a resin material.

To provide a plastic lens which can absorb light with a wavelength of 400 to 420 nm with sufficiently high efficiency but is reduced in the absorption of light with a wavelength of around 420 nm or longer, is less affected by harmful light, suppresses yellow coloration and therefore has excellent appearance, suppresses yellowish discoloration over time, and has excellent heat resistance, light resistance, and also optical performance, particularly an excellent Abbe's number. The plastic lens is characterized by containing an ultraviolet absorbing agent represented by the following formula (I): ##STR00001##
(in the formula, R.sup.1 to R.sup.8 each independently represent a monovalent group such as a hydrogen atom, R.sup.9 represents a monovalent sulfur-containing group represented by the following formula (i): ##STR00002##
(in the formula, R.sup.10 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.11 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.12 represents a monovalent hydrocarbon group with 1 to 20 carbon atoms; the total number of carbon atoms in R.sup.10, n number of R.sup.11, and R.sup.12 is 30 or less; m represents an integer of 0 or 1; and n represents an integer of 0 to 3)), and a resin material.