Patent application number | Description | Published |
20090208548 | COPOLYMER-STABILIZED EMULSIONS - An emulsion includes a substantially continuous liquid medium, and a plurality of droplet structures dispersed within the substantially continuous liquid medium. Each droplet structure of the plurality of droplet structures includes an outer droplet of a first liquid having an outer surface; an inner droplet of a second liquid having an inner surface contained within the outer surface of the outer droplet of the first liquid, the second liquid being immiscible in the first liquid, wherein the inner and outer droplets have a boundary surface region therebetween; an outer layer of block copolymers disposed on the outer surface of the outer droplet; and an inner layer of block copolymers disposed on the inner surface of the inner droplet. The block copolymers include a hydrophilic polymer block and a hydrophobic polymer block that act in combination to stabilize the droplet structure, and the first liquid is immiscible in the substantially continuous liquid medium. | 08-20-2009 |
20100003336 | VESICLES OF SELF-ASSEMBLING BLOCK COPOLYMERS AND METHODS FOR MAKING AND USING THE SAME - Vesicles of self-assembling block copolymers, e.g., diblock copolypeptides, as well as methods of making and using the same. Vesicles of the invention have a shell made up of block copolymers that include an intracellular transduction hydrophilic domain and a hydrophobic domain. In certain embodiments, the vesicles include an encapsulated active agent, e.g., a diagnostic or therapeutic agent. The vesicles find use in a variety of different application, including the intracellular delivery of active agents, e.g., diagnostic and therapeutic agents. | 01-07-2010 |
20130064759 | COPOLYMER-STABILIZED EMULSIONS - An emulsion includes a substantially continuous liquid medium, and a plurality of droplet structures dispersed within the substantially continuous liquid medium. Each droplet structure of the plurality of droplet structures includes an outer droplet of a first liquid having an outer surface; an inner droplet of a second liquid within the first droplet, the second liquid being immiscible in the first liquid, wherein the inner and outer droplets have a boundary surface region therebetween; an outer layer of block copolymers disposed on the outer surface of the outer droplet; and an inner layer of block copolymers disposed on the boundary surface region between the outer and the inner droplets. | 03-14-2013 |
20130267458 | COMPOSITIONS AND USES OF MATERIALS WITH HIGH ANTIMICROBIAL ACTIVITY AND LOW TOXICITY - Improved synthetic copolypeptide antimicrobials contain cationic amino acid residues and may be based on a blocky sequence. These antimicrobials show low mammalian toxicity and may undergo directed self-assembly. The inventive synthetic copolypeptides are useful in treatment of wounds and other infections. | 10-10-2013 |
20140286865 | SYNTHETIC DIBLOCK COPOLYPEPTIDE HYDROGELS FOR USE IN THE CENTRAL NERVOUS SYSTEM - This invention relates, e.g., to a composition suitable for administration to the central nervous system (CNS), comprising a block copolypeptide hydrogel, which comprises a biologically active material that is mixed with the hydrogel or that is attached to the polypeptide chain of the hydrogel, wherein the composition is suitable for administration to the CNS. Also disclosed are methods of making and using compositions of the invention as depots or as scaffolds for cell migration, and pharmaceutical compositions and kits for implementing methods of the invention. | 09-25-2014 |
20150057433 | PREPARATION OF FUNCTIONALIZED POLYPEPTIDES, PEPTIDES, AND PROTEINS BY ALKYLATION OF THIOETHER GROUPS - Reagents are disclosed for chemoselective tagging of methionine residues in peptides and polypeptides, subsequent bioorthogonal tag functionalization, and cleavage of the tags when desired to regenerate unmodified samples. This method compliments other peptide tagging strategies and adds capability for tag removal, which may be useful for release of therapeutic peptides from a carrier, or release of tagged protein digests from solid supports. | 02-26-2015 |
20150366193 | COMPOSITION WITH HIGH ANTIMICROBIAL ACTIVITY AND LOW TOXICITY - Improved synthetic copolypeptide antimicrobials contain cationic amino acid residues and may be based on a blocky sequence. These antimicrobials show low mammalian toxicity and may undergo directed self-assembly. The inventive synthetic copolypeptides are useful in treatment of wounds and other infections. | 12-24-2015 |
20160002405 | AMPHIPHILIC DERIVATIVES OF THIOETHER CONTAINING BLOCK COPOLYPEPTIDES - Methods for preparation of novel amphiphilic derivatives of thioether containing block copolypeptides with narrow chain length distributions are described. These block copolymers can be chemically modified by oxidation and alkylation of the thioether containing residues. These materials generate self-assembled micelles, vesicles and hydrogels, or emulsions with oil phases. These assemblies can be used to encapsulate and delivery therapeutic molecules. The assemblies can be taken up by cells to release molecules from the assemblies. | 01-07-2016 |