Bioactive silicate glasses
AssigneeCorning Incorporated
InventorQiang Fu
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Abstract
An antibacterial composition, includes: a silicate-based glass material having a composition of: 55-70 wt. % SiO2, 0-10 wt % B2O3, 3-18 wt. % P2O5, 0-10 wt. % A1203, 0-5 wt. % Li2O, 12-30 wt. % Na2O, 0-15 wt. % K2O, 0-10 wt. % MgO, 1-15 wt. % CaO, 2-20 wt. % MO, and 15-35 wt. % R2O, such that MO is the sum of MgO, CaO, SrO, and BaO, such that R2O is the sum of Na2O, K2O, Li2O, and Rb2O, and such that the silicate-based glass material can achieve a 6-log kill rate of at least one of E. coli, P. gingivalis, or S. mutans bacteria.
Claims26
1-16. (canceled)
A glass composition comprising, wt %:
- 55-70 SiO2
- 0-10 B2O3
- 3-18 P2O5
- 0-10 A1203
- 0-5 Li2O
- 12-30 Na2O
- 0-15 K2O
- 0-10 MgO
- 1-15 CaO
- 2-20 MO, and
- 15-35 R2O,
- wherein MO is the sum of MgO, CaO, SrO, and BaO, and R2O is the sum of Na2O, K2O, Li2O, and Rb2O.
32-34. (canceled)
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Dependencies are inferred from the claim text.