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US 2017/0319506 A1Published application
Shear-thinning self-healing networks
AssigneeMassachusetts Institute of Technology
InventorsEric A. Appel, Mark W. Tibbitt, Robert S. Langer
Life of this patent
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Abstract
Network materials which exhibit both shear thinning and self-healing properties are disclosed. The networks contain particles and gel-forming compounds. The networks are useful for a variety of biomedical uses, including drug delivery.
Claims21
A polymer nanoparticle (PNP) gel comprising:
- one or more gel-forming polymer and a nanoparticle, wherein the loss modulus (G″) for a solution of the one or more gel-forming polymer and the loss modulus (G″) of a solution of the nanoparticle is greater than the respective storage moduli (G′) at a frequency of 10 rad/s as measured by oscillatory shear rheometry in the linear viscoelastic regime;
- and
- wherein the nanoparticle and the one or more gel-forming polymer form a PNP gel when combined wherein the storage modulus (G′) for the PNP gel is greater than the loss modulus (G″) at a frequency of 10 rad/s as measured by oscillatory shear rheometry in the linear viscoelastic regime when combined.
-66. (canceled)
Dependencies are inferred from the claim text.