Cornell Research Foundation Inc.

Cornell University

Kent State University

Margaret W Frey

Alan G Taylor

John L West

Thomas B Green

Daehwan Cho

Lei Li

Antje J Baeumner

Michael P Hoffmann

Chae Un Kim

Ebru Aylin Buyuktanir

Prashant Kakad

SangGap Lee

Jeffrey Gardner

Nikolas Hoepker

Mark W Tate

Meryem Oznur Pehlivaner Kara

Chunhui Xiang

Dapeng Li

Polymeric materials are provided that are produced from a blend of hydrophilic and hydrophobic biodegradable polymers. The polymeric materials can form fibers, nonwoven fabrics, films, coatings, etc. A compound can be incorporated in the polymeric materials. The delivery of the compound can be controlled by diffusion of the compound from the polymeric material and during biodegradation of the polymeric material. The release rate is controlled by varying the composition of the polymeric material to control diffusion rates of the compound and/or biodegradation rate of the polymeric material. This technology provides methods for delivering and controlling release rates of pesticides and related compounds in agricultural and non-agricultural settings. When adhered to plants or plant parts, the polymeric materials can provide protection from insect and disease pests. In pellet or capsule form, pesticides can be delivered into seed furrows along with crop seeds, providing similar protection.

Biodegradable chemical delivery system

Provided are conducting polymer nanofibers, methods of making conducting polymer nanofibers, and uses thereof. The conducting polymer nanofibers can be formed by, for example, electrospinning, force spinning, and centrifugal spinning using a spinning dope. The conducting polymer nanofibers can be used in devices, such as a radiation detecting device.

Method of making conducting polymer nanofibers

A process for making a stimuli responsive liquid crystal-polymer composite fiber comprising mixing a liquid crystal, a polymer, and a solvent; processing the mixture in the presence of an electric potential across a collection distance; phase separating a polymer and said liquid crystal; and encapsulating said liquid crystal within said polymer. The fiber generally comprises a liquid crystal core and a polymer shell wherein the liquid crystal is responsive to chemical changes, thermal and mechanical effects, as well as electrical and magnetic fields. A liquid crystal containing fiber can be utilized as optical fibers, in textiles, and in optoelectronic devices.

Method of making stimuli responsive liquid crystal-polymer composite fibers

Composite of polyamide layer solvent bonded to cellulosic substrate is formed by solution electrospinning deposit of polyamide on cellulosic substrate with the solution subjected to electrospinning containing as solvent for polyamide one that swells cellulosic fibers on contact therewith and/or by depositing very long polyamide fibers of low average diameter.

Cellulosic/polyamide composite

Electrospun nanofiber incorporating a binder (e.g., biotin) is used in the form of a nonwoven or composite with a substrate. The nonwoven and composite can be joined to biosensor, e.g., by binding the biotin to streptavidin and binding streptavidin to biotinylated detector, and because of the high surface area to volume of electrospun nanofiber provides increased sensitivity.

Electrospun nanofiber-based biosensor assemblies

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Ithaca, NY, United States of America

Margaret W Frey