Compositions, systems and methods for delivery of an element in response to biological demand
AssigneeLucent Biosciences, Inc.
InventorsNeil Robin Branda, Farahnaz Nourmohammadian, Peter Gross
Life of this patent
Estimating the term…
Abstract
The invention provides compositions and systems comprising a carrier and an element. The carrier is a network of polymers insoluble in water comprising phenolic hydroxyl moieties, aliphatic hydroxyl moieties or a combination thereof. An association between the carrier and the element is labile in response to biological demand and the lability of the association in the presence of water is less than the lability of the association in response to biological demand. Also provided are methods of making such compositions and methods for delivering the element to an organism.
Claims15
A composition comprising:
- a carrier comprising phenolic hydroxyl moieties, aliphatic hydroxyl moieties or a combination thereof, wherein the carrier is a network of polymers and insoluble in water, and wherein the carrier comprises about 0.2% to about 40% (w/w) lignin and about 60% to about 98.8% (w/w) cellulose to total weight of the carrier;
- and
- an element, wherein a salt of the element is soluble in the presence of water,
- wherein an association between the carrier and the element is labile in response to biological demand and the lability of the association in the presence of water is less than the lability of the association in response to biological demand,
- wherein the association between the carrier and the element comprises element-hydroxide covalent bonding, and
- wherein the element forms an aggregate of elements, the aggregate comprising element-element covalent bonding.
Dependencies are inferred from the claim text.