Natural-based salicylic acid poly(anhydride ester) hydrogels for agricultural applications
AssigneeThe Regents of the University of California
InventorsKathryn Uhrich, Mariana Reis Nogueira de Lima
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Abstract
The present invention provides novel bioactive and biocompatible polymers derived from salicylic acid and itaconic acid. The present invention also provides hydrogels formed from these bioactive and biocompatible polymers, and methods of using such hydrogels to promote plant growth and/or to increase drought and stress tolerance.
Claims66
A homopolymer having a backbone, wherein the backbone comprises one or more units of Formula (I):
- wherein:
- n is 1 to 1500.
A copolymer having a backbone, wherein the backbone comprises:
- (a) one or more units of Formula (I):
- (b) one or more units of Formula (II):
- wherein:
- n is 1 to 1500;
- m is 1 to 1500;
- and
- each R is independently a linker.
A copolymer having a backbone, wherein the backbone comprises:
- (a) one or more units of Formula (III):
- (b) one or more units of Formula (IV):
- wherein:
- n is 1 to 1500:
- m is 1 to 1500;
- and
- each R is independently a linker.
A hydrogel comprising a plurality of homopolymers having a backbone, wherein the backbone comprises one or more units of Formula (I):
- wherein n is 2 to 1500;
- and
- wherein the homopolymers are cross-linked.
A hydrogel comprising a plurality of copolymers having a backbone, wherein the backbone comprises:
- (a) one or more units of Formula (I):
- (b) one or more units of Formula (II):
- wherein:
- n is 1 to 1500;
- m is 1 to 1500;
- and
- each R is independently a linker;
- and
- wherein the copolymers are cross-linked.
A hydrogel comprising a plurality of copolymers having a backbone, wherein the backbone comprises:
- (a) one or more units of Formula (III):
- (b) one or more units of Formula (IV):
- wherein:
- n is 1 to 1500;
- m is 1 to 1500;
- and
- each R is independently a linker;
- and
- wherein the copolymers are cross-linked.
A method of treating a plant, seed, or crop comprising, the method comprising administering a homopolymer comprising one or more units of Formula (III) to a plant, crop, or seed:
- wherein:
- n is 1 to 1500;
- m is 1 to 1500;
- and each R is independently a linker.
Dependencies are inferred from the claim text.