Abstract: Disclosed are telechelic fluoropolymers and methods for forming the polymers. The fluoropolymers can be formed via step-growth polymerization of bis(trifluorovinyloxy)biphenyls with bisphenols. The formed telechelic polymers possess fluoroolefin functionality at the trifluorovinyl aromatic ether endgroups. Internal groups can include difluorodioxyvinylene groups and trifluoroethyl groups. Formation methods of the telechelic polymers can be controlled so as to control molecular weight and degree of unsaturation of the polymers. The end groups and the internal groups can be further reacted independently of each other, e.g., under different temperature conditions, to form a variety of polymers and/or crosslinked polymeric networks.
Abstract: The present invention discloses a relatively simple CVD method for forming specifically tailored carbon-based nanostructures. In general, the method is a chemical vapor deposition method in which at least a portion of the precursor materials are provided as a liquid at atmospheric conditions. The precursor materials include at least one carbon source and at least one catalyst source. Optionally, the precursor materials can also include one or more dopant sources. The carbon source and the optional dopant source can be injected as liquids into the system, and the liquid catalyst source can be either injected into the system or located on a substrate in the reactor prior to the process. Very high yield of nanostructures exhibiting particular characteristics can be attained by the process.
Type:
Grant
Filed:
May 20, 2005
Date of Patent:
July 13, 2010
Assignee:
Clemson University Research Foundation
Inventors:
Gayatri D. Keskar, Wei Wang, Apparao M. Rao
Abstract: The present invention is directed to an improved supercritical fluid processing technique that can be used to form particulate suspensions of biologically useful materials. The disclosed processes include variations of RESS processes. The disclosed processes do not form micelles of any stabilizing agents in the aqueous solution that receives the product materials following rapid expansion through a nozzle. In particular, stabilizing agents in the aqueous solution are either materials that will not form micelles in aqueous environments, or else they are materials that can form micelles, but are utilized at conditions that are insufficient for the formation of micelles or at least not suitable for any significant presence of micelles in the product. Through utilization of the disclosed process, particulate suspensions can be formed exclusively of very small particles, for example, particulate suspensions in which all of the particles formed are less than 100 nm in size.
Abstract: Disclosed is a process for producing lactide-based copolymers and copolymers produced by the process. The copolymers are formed by the copolymerization of a lactide monomer with a secondary material. In one embodiment, the secondary material can be derived from renewable resources, providing a product copolymer completely derived from renewable resources. The disclosed materials may display improved hydrolytic and thermal characteristics as compared to previously known lactide-based materials. Exemplary secondary materials that can be copolymerized with lactide can include polyhydroxy alkanoates, long chain primary alcohols, and depsipeptides.
Type:
Grant
Filed:
November 15, 2006
Date of Patent:
July 13, 2010
Assignee:
Clemson University
Inventors:
Dennis W. Smith, Jr., Dahlia Haynes, Nilmini Abayasinghe
Abstract: A process and apparatus of separating CO2 gas from industrial off-gas source is provided in which the CO2 containing off-gas is introduced deep within an injection well. The CO2 gases are dissolved in the liquid within the injection well while non-CO2 gases, typically being insoluble in water or brine, are returned to the surface. Once the CO2 saturated liquid is present within the injection well, the injection well may be used for long-term geologic storage of CO2 or the CO2 saturated liquid can be returned to the surface for capturing a purified CO2 gas.
Type:
Application
Filed:
January 7, 2010
Publication date:
July 8, 2010
Applicants:
Savannah River Nuclear Solutions, LLC, Clemson University Research Foundation
Inventors:
Gerald Blount, Alvin A. Siddal, Ronald W. Falta
Abstract: The disclosure provides compositions prepared by combining nanomaterials with a halide-containing polymer, thereby forming a combined polymer matrix having dispersed nanomaterials within the matrix. The nanomaterials may be carbon-based nanotubes, in some applications. A halide-containing monomer is combined with nanotubes, and then polymerized in some compositions. In other applications, a halide-containing polymer is solution processed with nanotubes to form useful compositions in the invention. Also disclosed are probes for near field detection of radiation.
Type:
Grant
Filed:
June 11, 2007
Date of Patent:
July 6, 2010
Assignee:
Clemson University
Inventors:
David Carroll, John Ballato, Stephen Foulger, Richard Czerw, Dennis Smith, Hiren Shah, Earl Wagener
Abstract: Provided herein are compositions and methods for modulating winter dormancy in a perennial plant using the herein disclosed winter dormancy genes and variants and homologues thereof.
Type:
Application
Filed:
March 28, 2006
Publication date:
July 1, 2010
Applicant:
CLEMSON UNIVERSITY RESEARCH FOUNDATION
Inventors:
Douglas G. Bielenberg, Gregory L. Reighard, Albert G. Abbot
Abstract: Single, acentric, rhombohedral, fluoroberyllium borate crystals of a size sufficient for use in a variety of laser and non-optical applications are formed by a hydrothermal method.
Abstract: Disclosed are materials and systems useful in determining the existence of radionuclides in an aqueous sample. The materials provide the dual function of both extraction and scintillation to the systems. The systems can be both portable and simple to use, and as such can beneficially be utilized to determine presence and optionally concentration of radionuclide contamination in an aqueous sample at any desired location and according to a relatively simple process without the necessity of complicated sample handling techniques. The disclosed systems include a one-step process, providing simultaneous extraction and detection capability, and a two-step process, providing a first extraction step that can be carried out in a remote field location, followed by a second detection step that can be carried out in a different location.
Abstract: Disclosed is an apparatus and methodology for imaging objects, more particularly radiologically dense objects. The currently disclosed technology has particular applicability in the medical field as a tool and methodology for investigation of radiologically dense breast tissue of young patients by using microwave energy in concert with an ultrasonic initial investigation of the tissue. The use of an ultrasonic initial investigation operates as an initial evaluation point for the subsequent microwave investigation.
Abstract: A method and product are provided for the treatment of connective tissue weakened due to destruction of tissue architecture, and in particular due to elastin degradation. The treatment agents employ certain unique properties of phenolic compounds to develop a protocol for reducing elastin degradation, such as that occurring during aneurysm formation in vasculature. According to the invention, elastin can be stabilized in vivo and destruction of connective tissue, such as that leading to life-threatening aneurysms in vasculature, can be tempered or halted all together. The treatment agents can be delivered or administered acutely or chronically according to various delivery methods, including sustained release methods incorporating perivascular or endovascular patches, use of microsphere carriers, hydrogels, or osmotic pumps.
Type:
Grant
Filed:
July 10, 2007
Date of Patent:
May 11, 2010
Assignee:
Clemson University Research Foundation
Inventors:
Narendra R. Vyavahare, Jason C. Isenburg, Dan T. Simionescu
Abstract: A compound derived from an extract of vegetative tissue of plants of the Genus Shortia demonstrates antitcarcinogenic potential by inhibiting the growth and development formation of tumors in living tissue in response to an organism known to cause the initiation of tumors in living tissue and by reducing mutation rates in living tissues exposed to a known mutagen.
Abstract: The present invention is generally directed to compositions useful in preventing and/or treating disease due to infection by any of a variety of biologically active pathogenic microorganisms. The compositions include nanoparticles formed of a hydrophobic polymeric core, hydrophilic linking agents bound to the core, and biofunctional materials bound to the linking agents. The biofunctional materials are functionally identical to receptors on host cell surfaces that can be recognized and bound by adhesins on the surface of the targeted pathogenic adhesin-bearing microorganisms. In one embodiment, the binding action between the nanoparticles and the microorganisms can lead to the formation of large agglomerated complexes, which can then be easily removed from an area, including the digestive tract of an infected individual.
Type:
Grant
Filed:
October 1, 2003
Date of Patent:
March 23, 2010
Assignee:
Clemson University
Inventors:
Fred J. Stutzenberger, Robert A. Latour, Jr., Ya-Ping Sun, Tzuen R. Tzeng
Abstract: Novel hybrid monomers containing both the aryltrifluorovyinyloxyether-group (TFVE-group) and the cyanato-group, their synthesis, and the synthesis of polymers made from these new hybrid monomers are disclosed.
Type:
Grant
Filed:
May 24, 2006
Date of Patent:
March 9, 2010
Assignees:
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Clemson University
Inventors:
Christian Dreyer, Monika Bauer, Suresh S. Iyer, Dennis W. Smith
Abstract: The present invention is directed to a memory device having very high storage density capability. In general, the memory device includes an array of individual memory cells which store information that is assigned a value based on the molecular contents of the memory cell. In a preferred embodiment, the molecules utilized for storing information in the memory cells may be single-strand polynucleotides, for instance single-strand oligonucleotides of between about 5 and about 20 monomer units. The present invention is also directed to methods and systems useful for writing and reading the molecular-based memory devices. In particular, the devices may be written and read via modified atomic force microscopy processes.
Abstract: The present invention is directed to a memory device having very high storage density capability. In general, the memory device includes an array of individual memory cells which store information that is assigned a value based on the molecular contents of the memory cell. In a preferred embodiment, the molecules utilized for storing information in the memory cells may be single-strand polynucleotides, for instance single-strand oligonucleotides of between about 5 and about 20 monomer units. The present invention is also directed to methods and systems useful for writing and reading the molecular-based memory devices. In particular, the devices may be written and read via modified atomic force microscopy processes.
Abstract: The present disclosure is generally directed to a process for decreasing waste material. The process includes loading organic material into a vessel, supplying ozone and water into the vessel, separating the organic material into solid material and liquid material, and reconditioning water from the liquid material for use again. The ozone oxidizes and breaks down at least a portion of the organic material.
Abstract: Disclosed are environmentally friendly polymeric composite materials and products that can be formed from the composites. The polymeric composites can include a lactide-based polymeric matrix reinforced with fibers derived from renewable resources and optionally including one or more beneficial agents such as, for instance, naturally occurring UV blockers or absorbents, anti-oxidants, anti-microbials, and the like. The composite materials can be formed into a desired structure according to low energy formation processes and can be designed for controlled degradation. In one particular embodiment, the composite materials can be formed to produce containers for storing and protecting environmentally sensitive materials such as pharmaceuticals or nutraceuticals. Beneficially, the disclosed materials can be formed entirely from renewable resources.
Type:
Application
Filed:
October 19, 2006
Publication date:
January 7, 2010
Applicant:
Clemson University
Inventors:
Danny H. Roberts, Joseph D. Gangemi, Dennis W. Smith
Abstract: A mixed culture of Dehalococcoides species is provided that has an ability to catalyze the complete dechlorination of polychlorinated ethenes such as PCE, TCE, cDCE, 1,1-DCE and vinyl chloride as well as halogenated ethanes such as 1,2-DCA and EDB. The mixed culture demonstrates the ability to achieve dechlorination even in the presence of high source concentrations of chlorinated ethenes.
Type:
Application
Filed:
May 7, 2008
Publication date:
November 12, 2009
Applicants:
Washington Savannah River Co, LLC, Clemson University Research Foundation
Inventors:
Christopher E. Bagwell, David L. Freedman, Robin Brigmon, William B. Bratt, Elizabeth A. Wood
Abstract: A mixed culture of Dehalococcoides species is provided that has an ability to catalyze the complete dechlorination of polychlorinated ethenes such as PCE, TCE, cDCE, 1,1-DCE and vinyl chloride as well as halogenated ethanes such as 1,2-DCA and EDB. The mixed culture demonstrates the ability to achieve dechlorination even in the presence of high source concentrations of chlorinated ethenes.
Type:
Grant
Filed:
May 7, 2008
Date of Patent:
November 10, 2009
Assignees:
Savannah River Nuclear Solutions, LLC, Clemson University
Inventors:
Christopher E. Bagwell, David L. Freedman, Robin L. Brigmon, William B. Bratt, Elizabeth A. Wood