Bioactive glass compositions

1. A fiber filament comprising a silicate-based glass composition, the glass composition comprising:

50-70 wt. % SiO 2 ,

0.01-10 wt. % P 2 O 5 ,

10-30 wt. % Na 2 O,

0.01-10 wt. % CaO,

0.01-10 wt. % MO, and

15-30 wt. % R 2 O,

wherein MO is the sum of MgO, CaO, SrO, BeO, and BaO;

wherein R 2 O is the sum of Na 2 O, K 2 O, Li 2 O, Rb 2 O, and Cs 2 O, and

wherein the fiber filament comprises a biopolymer coating including at least one of: polylactic acid (PLA), polyglyolic acid (PGA), co-polymers thereof (PLGA), poly D,L-lactic acid (PDLLA), poly 3-hydroxybutyrate (P(3HB)), alginate, polycaprolactone (PCL), or polyvinyl-alcohol (PVA).

2. The fiber filament of claim 1 , wherein the glass composition further comprises:

0.01-10 wt. % K 2 O, and

0.01-5 wt. % MgO.

3. The fiber filament of claim 1 , wherein the glass composition further comprises:

0-10 wt. % Al 2 O 3 ,

0-10 wt. % ZnO,

0-10 wt. % B 2 O 3 , and

0-5 wt. % Li 2 O.

4. The fiber filament of claim 1 , wherein the glass composition comprises:

60-70 wt. % SiO 2 ,

5-10 wt. % P 2 O 5 ,

20-30 wt. % Na 2 O,

1-10 wt. % K 2 O,

1-4 wt. % MgO, and

0.01-5 wt. % CaO.

5. The fiber filament of claim 4 , wherein the glass composition further comprises:

1-6 wt. % K 2 O.

6. The fiber filament of claim 4 , wherein the glass composition is essentially free of B 2 O 3 , Al 2 O 3 , ZnO, and Li 2 O.

7. The fiber filament of claim 1 , wherein the glass composition is configured to have a viscosity of at least 100-poise (P) at temperatures in a range of 1000° C. to 1500° C., and a liquidus temperature in a range of 900° C. to 1200° C.

8. The fiber filament of claim 1 , wherein the glass composition is configured for hydroxyapatite formation within seven days of immersion in simulated body fluid (SBF).

9. The fiber filament of claim 8 , wherein the hydroxyapatite formation comprises: granular spherical crystals having at least one size dimension in a range of 0.1-10 μm.

10. The fiber filament of claim 1 , wherein a difference between a glass transition temperature (T g ) of the glass composition and an onset of crystallization temperature (T c,o ) is at least 200° C.

11. The fiber filament of claim 1 produced via a contact coating method by passing the fiber filament through a polymer-containing reservoir.

12. The fiber filament of claim 1 , having a diameter in a range of 5 μm to 25 μm.

13. A yarn comprising at least one fiber filament of claim 1 , where the yarn has at least 50 holes.

14. A textile comprising the fiber filament of claim 1 .

15. A matrix comprising the fiber filament of claim 1 , wherein:

the matrix includes at least one of: a toothpaste, mouthwash, rinse, spray, ointment, salve, cream, bandage, polymer film, oral formulation, pill, capsule, or transdermal formulation.

16. The matrix of claim 15 , wherein the fiber filament is attached to the matrix or mixed therein.