Bioactive borophosphate glasses
    35.
    发明授权

    公开(公告)号:US10676713B2

    公开(公告)日:2020-06-09

    申请号:US15602899

    申请日:2017-05-23

    Abstract: A borophosphate glass composition including B2O3, P2O5, and CaO, and optionally a source additive selected from: Li2O, Na2O, K2O, Al2O3, ZnO, MgO, Fe2O3/FeO, CuO/Cu2O, and mixtures thereof, as defined herein. Also disclosed are bioactive compositions or substrates including the disclosed borophosphate glass composition, and at least one live cell. Also disclosed are methods of inhibiting or increasing the relative amount of species containing boron, phosphorous, or both, being released into an aqueous solution from aborophosphate glass composition defined herein. Also disclosed is a method of proliferating cells on a bioactive substrate as defined herein. Also disclosed are related glass compositions that exclude one of B2O3, P2O5, and CaO.

    TRANSPARENT SILICATE GLASSES WITH HIGH FRACTURE TOUGHNESS

    公开(公告)号:US20180022635A1

    公开(公告)日:2018-01-25

    申请号:US15650152

    申请日:2017-07-14

    CPC classification number: C03C3/097 C03B1/00 C03C3/095 H05K5/03

    Abstract: Provided herein are glass based articles comprising SiO2, Al2O3, and two or more metal oxides selected from the group consisting of La2O3, BaO, Ta2O5, Y2O3, and HfO2. The glass based articles typically are characterized by a high fracture toughness (e.g., at least 0.86 MPa*m0.5), a high Young's modulus value (e.g., at least 85 GPa) and/or a stress optical coefficient (SOC) of not more than 3 Brewster (e.g., about 1.3 Brewster to about 2 Brewster). Also provided herein are glass based articles comprising SiO2 and two or more of MxOy, wherein M is Ba, La, Ta, Y, Al or Hf; wherein the total amount of SiO2 is the same or substantially the same as that of a reference glass based article comprising two or more binary compositions of MxOy—SiO2, wherein the reference glass based article has the same molar percentage of each MxOy, and the molar ratio of MxOy to SiO2 in each binary composition is 4/(c*x), wherein c is the number of charges of M.

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