Rutgers, The State University of New Jersey

Simi Gunaseelan

Patrick J Sinko

Stanley Stein

Xiaoping Zhang

Manjeet Deshmukh

Anupa R Menjoge

Yashveer Singh

Shahriar Pooyan

Matthew Sean Palombo

Siva Naga Sree Priay Anumolu

Raghavandra Navath

Li Wan

Hilliard Kutscher

Novel classes of multi-arm polyalkylene oxide-based materials including PEG nanocarriers, nanogel particles, and aggregated nanogel particles are disclosed. These classes of compositions may be associated with therapeutic agents and targeting moieties, or visibility enhancing agents, and may have a modified surface structure. In some embodiments the PEG-based materials can be made to provide relatively high drug loads with improved solubility and targeted delivery.

Nanocarrier and nanogel compositions

This invention provides multimeric nanocarrier for in vivo delivery of a bioactive agent, comprising at least two peptide monomers reversibly or irreversibly linked with one or more of said bioactive agents, wherein said two or more of said peptide monomers are covalently linked by a biodegradable difunctional moiety, as well as methods of using this nanocarrier.

Nanocarrier compositions and methods

This invention concerns an in situ biodegradable hydrogel drug delivery system in which the components are assembled in a manner that provides a mechanism for the timed cleavage of a particular amide bond in a covalently linked active agent or of the hydrogel structure.

Degradable hydrogel compositions and methods

Described is a spray-on hydrogel comprising water-soluble PEG polymers that cross-link in situ to form a hydrogel such that the cross-links are reversible. The hydrogel can be useful as a drug delivery composition, wound dressing or surgery adjuvant. Polyethylene glycol polymer and cross-linker solutions are sprayed simultaneously through a common orifice. Cross-linking via formation of thioether or disulfide bonds is initiated upon mixing, providing rapid gelation. The hydrogel components can be derivatized with RGD peptides or analogs thereof to promote retention in/on a body compartment such as the skin, surface of the eye, or a mucosa such as the vaginal mucosa. The cross-links are reversed using a reducing solution enabling easy removal of the hydrogel by dissolution. Processes for preparation of the cross-linker, RGD derivatized PEG and RGD-linked agents are also disclosed.

Dressing compositions and methods

Monodisperse macromolecular conjugate compositions of a peptidic carrier irreversibly or reversibly conjugated with one or more effectors and one or more therapeutic agents, wherein at least one effector or therapeutic agent is attached to a pendant reactive group on said peptidic carrier via a water-soluble polymer. Monodispersity is obtained through the use of orthogonal and separate conjugation reactions.

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North Brunswick, NJ, United States of America

Simi Gunaseelan