LIQUID DROPLET FORMING APPARATUS
    6.
    发明公开

    公开(公告)号:US20240326077A1

    公开(公告)日:2024-10-03

    申请号:US18605946

    申请日:2024-03-15

    IPC分类号: B05B15/25 B05B1/02

    CPC分类号: B05B15/25 B05B1/02

    摘要: What is provided is a liquid droplet forming apparatus capable of stably ejecting dispersion liquid, as liquid droplets, containing settling particles having constant concentration. A liquid droplet forming apparatus includes an ejection head that has a liquid chamber storing liquid containing settling particles and that ejects a liquid droplet of the liquid, stirrer for stirring the liquid held in the liquid chamber, posture controller for controlling a posture of the stirrer, and a control unit that controls operations of the ejection head, the stirrer, and the posture controller, in which the stirrer includes a tube-like member inserted into the liquid chamber, and a liquid feeding portion that sucks or discharges the liquid stored in the liquid chamber via the tube-like member, and the posture controller controls one or both of the position and the direction in which the stirrer sucks and discharges the liquid in the liquid chamber.

    LAYERED BODY
    10.
    发明申请

    公开(公告)号:US20210147795A1

    公开(公告)日:2021-05-20

    申请号:US17094935

    申请日:2020-11-11

    IPC分类号: C12N5/00 G01N33/50 G01N21/64

    摘要: An object of the present invention is to provide a layered body of cells that is used in a co-culture technique and that is capable of recognizing as paracrine effect of each cell and detecting the effect with high intensity. The layered body of the present invention is a layered body 1A having a layered structure in which a gel layer 20a containing a hydrogel is disposed between at least two cell layers 10a and 10b containing cells of different types from each other, wherein the hydrogel is a multi-branched polymer hydrogel formed by a reaction of: Liquid A containing a multi-branched polymer A, the polymer containing, as a backbone, a polyethylene glycol containing at least three branches, the branches containing one or more electrophilic functional groups in at least one of a side chain(s) and an end(s); and Liquid B containing a multi-branched polymer B, the polymer containing, as a backbone, a polyethylene glycol containing at least three branches, the branches containing one or more nucleophilic functional groups in at least one of a side chain(s) and an end(s), the concentration of components derived from the multi-branched polymers A and B in the hydrogel is from 0.6 to 8% by weight, and the thickness is from 0.02 mm to 2 mm.