Methods for producing wet gel and xerogel

    公开(公告)号:US11498043B2

    公开(公告)日:2022-11-15

    申请号:US16738189

    申请日:2020-01-09

    申请人: AGC Inc.

    IPC分类号: B01J13/00 C08G77/04

    摘要: To provide methods for producing a wet gel and a xerogel, in which variation in gel thickness is little even without highly controlling the levelness of the mold and the gels are less likely to break at the time of gelation or demolding.
    The method for producing a wet gel comprises, in such a state that a second liquid layer 14 made of a second liquid containing a gel raw material, is present on a first liquid layer 12 made of a first liquid, letting the second liquid layer 14 be gelled. The method for producing a xerogel comprises drying the wet gel thereby produced or a solvent-substituted gel obtainable by subjecting said wet gel to solvent substitution.

    Method of preparing metal oxide-silica composite aerogel and metal oxide-silica composite aerogel prepared by the same

    公开(公告)号:US11478770B2

    公开(公告)日:2022-10-25

    申请号:US16492912

    申请日:2018-09-07

    申请人: LG CHEM, LTD.

    IPC分类号: B01J13/00 C01B33/158

    摘要: Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.

    MOISTURE SWING CO2 SORBENTS WITH ENHANCED CAPACITY AND KINETICS

    公开(公告)号:US20220323934A1

    公开(公告)日:2022-10-13

    申请号:US17688508

    申请日:2022-03-07

    摘要: A composition of matter having a porous cross-linked polymer network, quaternary ammonium ions in the cross-linked polymer network, and at least one counter ion in the cross-linked polymer network that is at least one of hydroxide or a counter ion capable of forming hydroxide upon reaction with water. A method to produce a porous material includes polymerizing a compound containing quaternary ammonium and a cross-linker using controlled polymerization and ion exchange in the presence of at least one of hydroxide or a counter ion capable of forming hydroxide upon reaction with water. A method to capture CO2, includes employing a sorbent comprising a quaternary ammonium ions in a porous cross-linked polymer network in an environment to adsorb CO2.

    METHOD FOR MANUFACTURING SURFACE ENHANCED RAMAN SPECTROSCOPY TAGS

    公开(公告)号:US20220268705A1

    公开(公告)日:2022-08-25

    申请号:US17627525

    申请日:2020-07-13

    申请人: SICPA HOLDING SA

    IPC分类号: G01N21/65 B01J13/00

    摘要: The present invention relates to the field of methods of manufacturing of surface enhanced Raman spectroscopy (SERS) tags. The manufacturing method according to the present invention is reproducible and versatile and enables the production in an expedient manner of high quantities of SERS tags characterized by a narrow size distribution and a high ratio of low-number aggregates. SERS tags manufactured by the inventive manufacturing method described herein provide increased ensemble SERS responses.

    Artificial cell constructs for cellular manipulation

    公开(公告)号:US11413245B2

    公开(公告)日:2022-08-16

    申请号:US16568036

    申请日:2019-09-11

    发明人: Steven R. Little

    摘要: The present invention contemplates induction of immunological tolerance thereby providing permanent allograft acceptance. This method obviates the need for a lifelong regimen of immunosuppressive agents which can increase the risk of infection, autoimmunity, and cancer. Immunological tolerance is thought to be mediated by regulatory T lymphocytes (Treg cells) with immunosuppressive capabilities. A therapeutically relevant platform comprising artificial constructs are contemplated comprising numerous soluble and surface bound Treg cell stimulating factors that may induce tolerance following allograft transplantation. Such artificial constructs, being the size of a cell, have surface bound monoclonal antibodies specific to regulatory T-cell surface moieties and encapsulated soluble regulatory T-cell modulating factors.