Peptide compositions for oral care systems
Oral care compositions, oral care systems, oral surface-binding peptides, and a method for applying particles to an oral surface are provided. The oral care system comprises at least one peptidic component comprising a first binding element having affinity for an oral surface and a second binding element having affinity for a ligand property of a particle.
1. An oral care system comprising:
(a) a polypeptide comprising:
(i) a first binding element having affinity for an oral surface with a MB 50 value of 10 −5 molar or less comprising the amino acid sequence of SEQ ID NO: 66; and
(ii) a second binding element; and
(b) a composition comprising particles, said particles comprising a benefit agent, wherein said particles have an average particle size in the range of 0.01 micron to 10 microns; and the second binding element associates non-covalently with the particles.
2. The oral care system of claim 1 wherein said composition comprising particles is a stable dispersion of said particles.
3. The oral care system of claim 1 , wherein the polypeptide comprises a plurality first binding elements.
4. The oral care system of claim 1 wherein the oral surface is a tooth surface.
5. The oral care system of claim 4 wherein the tooth surface is enamel.
6. The oral care system of claim 4 wherein the tooth surface is pellicle.
7. The oral care system of claim 1 wherein the first binding element has a greater binding affinity for the oral surface relative to an affinity for the particles.
8. The oral care system of claim 1 wherein the association between the second binding element and the particles is electrostatic-based.
9. The oral care system of claim 1 wherein the benefit agent comprises a colorant.
10. The oral care system of claim 9 , wherein the colorant is a pigment.
11. The oral care system of claim 10 , wherein the pigment comprises TiO 2 .
12. The oral care system of claim 2 , wherein the stable dispersion is charge stabilized.
13. The oral care system of claim 2 wherein the stable dispersion comprises a zeta potential having an absolute value of at least 25 mV.
14. The oral care system of claim 2 wherein the stable dispersion comprises a dispersant.
15. The oral care system of claim 14 wherein the dispersant is an ionic dispersant or a non-ionic dispersant.
16. The oral care system of claim 1 wherein the polypeptide comprises an amino acid sequence selected from the group consisting of SEQ ID NOs: 145, 146, 147, 148, 149, 150 and 151.
17. The oral care system of claim 1 wherein the polypeptide comprises amino acid sequence SEQ ID NO: 166.
18. The oral care system of claim 1 wherein the polypeptide comprises a second binding element comprising an amino acid sequence selected from the group consisting of SEQ ID NOs: 152, 153, 154, 155, 156, 157 and 168.
19. A method for applying an oral care benefit agent to an oral surface comprising:
(a) providing the oral care system of claim 1 ; and
(b) contacting an oral surface with the oral care system of (a) whereby the benefit agent is applied to said oral surface.
20. The method of claim 19 wherein the peptide composition of the oral care system is contacted with the oral surface prior to contacting the composition comprising particles.
21. The method of claim 19 wherein the peptide composition of the oral care system and the composition comprising particles are applied to the oral surface concomitantly.