POLYMERIC CELL CULTURING SURFACE HAVING HIGH CELL ADHESION

    公开(公告)号:US20220243021A1

    公开(公告)日:2022-08-04

    申请号:US17268884

    申请日:2018-12-07

    Abstract: A polymeric substrate has a plasma treated contact surface which is roughened, hydrophilic and has a higher oxygen atomic content than the interior portion. The treated contact surface has an enhanced cell adhesion, cell growth and cell recovery rate. During the treatment, the contact surface is contacted with a process gas introduced through a gas inlet near the treated surface and radio frequency electrical power is introduced in the process gas, forming a treated contact surface that has improved cell recovery compared to an untreated contact surface. The process gas optionally can be nitrogen gas, oxygen gas, or a gas that contains nitrogen atoms, oxygen atoms, or a combination of nitrogen and oxygen atoms. The process optionally improves cell recovery of a chicken embryo cell culture from the treated contact surface.

    POLYMERIC CELL CULTURE SURFACE HAVING HIGH CELL ADHESION

    公开(公告)号:US20200291342A1

    公开(公告)日:2020-09-17

    申请号:US16756525

    申请日:2018-10-19

    Abstract: A polymeric substrate is contacted with a process gas and radio frequency electrical power is introduced in the process gas, forming a treated contact surface that has improved cell recovery compared to an untreated contact surface. The process gas optionally can be nitrogen gas, oxygen gas, or a gas that contains nitrogen atoms, oxygen atoms, or a combination of nitrogen and oxygen atoms. The process optionally improves cell recovery of a chicken embryo cell culture from the treated contact surface.

    PHARMACEUTICAL AND OTHER PACKAGING WITH LOW OXYGEN TRANSMISSION RATE

    公开(公告)号:US20190015561A1

    公开(公告)日:2019-01-17

    申请号:US15753524

    申请日:2016-08-18

    Abstract: Processing an evacuated blood sample collection tube or other vessel by plasma enhanced chemical vapor deposition to apply a tie coating or layer (289), a barrier coating or layer (288), and optionally one or more additional coatings or layers. The tie coating or layer of SiOxCy is applied under partial vacuum and, while maintaining the partial vacuum unbroken in the lumen, the barrier coating or layer is applied. Then optionally, while maintaining the partial vacuum unbroken in the lumen, a pH protective coating or layer of SiOxCy can be applied. As a result of this processing, a coated vessel is produced having a lower gas permeation rate constant into the lumen than a corresponding vessel made by the same process except breaking the partial vacuum in the lumen between applying the tie coating or layer and applying the barrier coating or layer. Retention features are also described for keeping the vessels stoppered during exposure to reduced ambient pressure.

    Pharmaceutical and other packaging with low oxygen transmission rate

    公开(公告)号:US11077233B2

    公开(公告)日:2021-08-03

    申请号:US15753524

    申请日:2016-08-18

    Abstract: Processing an evacuated blood sample collection tube or other vessel by plasma enhanced chemical vapor deposition to apply a tie coating or layer (289), a barrier coating or layer (288), and optionally one or more additional coatings or layers. The tie coating or layer of SiOxCy is applied under partial vacuum and, while maintaining the partial vacuum unbroken in the lumen, the barrier coating or layer is applied. Then optionally, while maintaining the partial vacuum unbroken in the lumen, a pH protective coating or layer of SiOxCy can be applied. As a result of this processing, a coated vessel is produced having a lower gas permeation rate constant into the lumen than a corresponding vessel made by the same process except breaking the partial vacuum in the lumen between applying the tie coating or layer and applying the barrier coating or layer. Retention features are also described for keeping the vessels stoppered during exposure to reduced ambient pressure.

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