CRYOPRESERVATION COMPOSITIONS AND METHODS INCLUDING GLYCEROL ESTER COMPONENTS

    公开(公告)号:US20220386591A1

    公开(公告)日:2022-12-08

    申请号:US17805100

    申请日:2022-06-02

    IPC分类号: A01N1/02 C12N5/00

    摘要: A cryopreservation process includes combining a cryopreservation composition with a biological sample. The cryopreservation composition includes at least one glycerol ester component. The cryopreservation process also includes then cooling the cryopreservation composition with the biological sample to a cryopreservation temperature. The cryopreservation composition aids in cryopreserving the biological sample at the cryopreservation temperature. A cryopreservation composition includes at least one glycerol ester component. A cryopreserved system includes a biological sample in a cryopreservation composition at a cryopreservation temperature. The cryopreservation composition includes at least one glycerol ester component.

    HEAT-ACTIVATED CRIMPING TEXTILE
    2.
    发明申请

    公开(公告)号:US20220112634A1

    公开(公告)日:2022-04-14

    申请号:US17496170

    申请日:2021-10-07

    摘要: A heat-activated crimping textile is disclosed including a plurality of a first yarn, a plurality of a second yarn interlaced with the plurality of the first yarn, and a plurality of a third yarn interlaced with the plurality of the first yarn, the plurality of the second yarn, or both. The third yarn includes a heat-activated shrinkage factor of greater than 30% when exposed to a predetermined temperature. When the heat-activated crimping textile is exposed to an elevated temperature of at least the predetermined temperature, a plurality of crimps propagates along the heat-activated crimping textile, forming a crimped textile.

    MODIFIED POLYMER FILM SURFACES FOR SINGLE-USE BIOREACTOR BAGS AND BIOCONTAINMENT AND METHODS OF FORMING SAME

    公开(公告)号:US20210317278A1

    公开(公告)日:2021-10-14

    申请号:US17226718

    申请日:2021-04-09

    摘要: In some embodiments, a polymer film includes a base composition of poly(ethylene-vinyl acetate) and a surface composition comprising hydroxy groups. In some embodiments, a polymer film includes a base layer of a first composition of poly(ethylene-vinyl acetate), a surface layer at a surface of the base layer, and a coating layer of a second composition of a copolymer of glycerol and sebacic acid. The surface layer includes surface hydroxy groups converted from acetate groups of the poly(ethylene-vinyl acetate). The second composition is attached to the surface layer by ester bonds between carboxyl groups of the copolymer and the hydroxy groups. A single-use bioreactor bag includes a polymer film including a base composition of poly(ethylene-vinyl acetate) and a surface composition comprising hydroxy groups. A method of modifying a poly(ethylene-vinyl acetate) film includes converting acetate groups at a first surface of the poly(ethylene-vinyl acetate) film to hydroxy groups.

    HYPERTHERMIA TARGETING COMPOSITIONS, DEVICES, AND METHODS FOR CANCER THERAPY

    公开(公告)号:US20200179513A1

    公开(公告)日:2020-06-11

    申请号:US16780177

    申请日:2020-02-03

    摘要: A method of cancer hyperthermia therapy includes placing a device including an exogenously-excitable polymeric material at a cancer hyperthermia therapy site of a patient. The method also includes supplying an exogenous energy to the device such that the exogenous energy excites the exogenously-excitable polymeric material at the cancer hyperthermia therapy site to heat the cancer hyperthermia therapy site to a hyperthermia temperature. A method of preparing a polymeric material includes combining an alcohol monomer, a seed of the polymeric material, and an aqueous liquid in a vessel. The method also includes adding an acid monomer to the vessel and supplying an exogenous energy to the vessel. The polymeric material is exogenously excited by the exogenous energy to heat the polymeric material. The method further includes removing water from the vessel and producing the polymeric material, which is a polyester, in the vessel.

    Doped biodegradable elastomer for downhole applications

    公开(公告)号:US10526863B2

    公开(公告)日:2020-01-07

    申请号:US15995777

    申请日:2018-06-01

    摘要: Compositions and methods are beneficial for use in downhole applications, especially oil and gas well bores. A composition includes an elastomer doped with a dopant. The presence of the dopant increases a rate of microbial degradation of the elastomer by a microbe. A method includes forming an article including a doped polymer. The doped polymer includes an elastomer doped with a dopant. The method also includes placing the article in a service environment. The presence of the dopant in the doped polymer increases a rate of microbial degradation of the elastomer by a microbe in the service environment.