Patents by Inventor Barbara R. Evans
Barbara R. Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9272045Abstract: A composite biocompatible hydrogel material includes a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa. A calcium comprising salt is disposed in at least some of the pores. The porous polymer matrix can comprise cellulose, including bacterial cellulose. The composite can be used as a bone graft material. A method of tissue repair within the body of animals includes the steps of providing a composite biocompatible hydrogel material including a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa, and inserting the hydrogel material into cartilage or bone tissue of an animal, wherein the hydrogel material supports cell colonization in vitro for autologous cell seeding.Type: GrantFiled: March 7, 2014Date of Patent: March 1, 2016Assignees: UT-BATTELLE, LLC, UNIVERSITY OF TENNESSEE RESEARCH FOUNDATIONInventors: Stacy A. Hutchens, Jonathan Woodward, Barbara R. Evans, Hugh M. O'Neill
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Patent number: 8898810Abstract: A method for functionalizing cantilevers is provided that includes providing a holder having a plurality of channels each having a width for accepting a cantilever probe and a plurality of probes. A plurality of cantilever probes are fastened to the plurality of channels of the holder by the spring clips. The wells of a well plate are filled with a functionalization solution, wherein adjacent wells in the well plate are separated by a dimension that is substantially equal to a dimension separating adjacent channels of the plurality of channels. Each cantilever probe that is fastened within the plurality of channels of the holder is applied to the functionalization solution that is contained in the wells of the well plate.Type: GrantFiled: December 23, 2013Date of Patent: November 25, 2014Assignees: UT-Battelle, LLC, University of Tennesse Research FoundationInventors: Barbara R. Evans, Ida Lee
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Publication number: 20140205676Abstract: A composite biocompatible hydrogel material includes a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa. A calcium comprising salt is disposed in at least some of the pores. The porous polymer matrix can comprise cellulose, including bacterial cellulose. The composite can be used as a bone graft material. A method of tissue repair within the body of animals includes the steps of providing a composite biocompatible hydrogel material including a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa, and inserting the hydrogel material into cartilage or bone tissue of an animal, wherein the hydrogel material supports cell colonization in vitro for autologous cell seeding.Type: ApplicationFiled: March 7, 2014Publication date: July 24, 2014Applicants: University of Tennessee Research Foundation, UT-Battelle, LLCInventors: Stacy A. Hutchens, Jonathan Woodward, Barbara R. Evans, Hugh M. O'Neill
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Publication number: 20140123348Abstract: A method for functionalizing cantilevers is provided that includes providing a holder having a plurality of channels each having a width for accepting a cantilever probe and a plurality of probes. A plurality of cantilever probes are fastened to the plurality of channels of the holder by the spring clips. The wells of a well plate are filled with a functionalization solution, wherein adjacent wells in the well plate are separated by a dimension that is substantially equal to a dimension separating adjacent channels of the plurality of channels. Each cantilever probe that is fastened within the plurality of channels of the holder is applied to the functionalization solution that is contained in the wells of the well plate.Type: ApplicationFiled: December 23, 2013Publication date: May 1, 2014Applicant: UT-BATTELLE, LLCInventors: Barbara R. Evans, Ida Lee
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Patent number: 8709122Abstract: The invention is directed to a method for producing an oxygenated biochar material possessing a cation-exchanging property, wherein a biochar source is reacted with one or more oxygenating compounds in such a manner that the biochar source homogeneously acquires oxygen-containing cation-exchanging groups in an incomplete combustion process. The invention is also directed to oxygenated biochar compositions and soil formulations containing the oxygenated biochar material.Type: GrantFiled: February 27, 2013Date of Patent: April 29, 2014Assignee: UT-Battelle, LLCInventors: James W. Lee, Archibald C. Buchanan, III, Barbara R. Evans, Michelle K. Kidder
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Patent number: 8673337Abstract: A composite biocompatible hydrogel material includes a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa. A calcium comprising salt is disposed in at least some of the pores. The porous polymer matrix can comprise cellulose, including bacterial cellulose. The composite can be used as a bone graft material. A method of tissue repair within the body of animals includes the steps of providing a composite biocompatible hydrogel material including a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa, and inserting the hydrogel material into cartilage or bone tissue of an animal, wherein the hydrogel material supports cell colonization in vitro for autologous cell seeding.Type: GrantFiled: December 29, 2011Date of Patent: March 18, 2014Assignees: UT-Battelle, LLC, University of Tennessee Research FoundationInventors: Stacy A. Hutchens, Jonathan Woodward, Barbara R. Evans, Hugh M. O'Neill
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Patent number: 8635711Abstract: A method for functionalizing cantilevers is provided that includes providing a holder having a plurality of channels each having a width for accepting a cantilever probe and a plurality of probes. A plurality of cantilever probes are fastened to the plurality of channels of the holder by the spring clips. The wells of a well plate are filled with a functionalization solution, wherein adjacent wells in the well plate are separated by a dimension that is substantially equal to a dimension separating adjacent channels of the plurality of channels. Each cantilever probe that is fastened within the plurality of channels of the holder is applied to the functionalization solution that is contained in the wells of the well plate.Type: GrantFiled: September 13, 2012Date of Patent: January 21, 2014Assignees: UT-Battelle, LLC, University of Tennessee Research FoundationInventors: Barbara R. Evans, Ida Lee
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Publication number: 20130233038Abstract: The invention is directed to a method for producing an oxygenated biochar material possessing a cation-exchanging property, wherein a biochar source is reacted with one or more oxygenating compounds in such a manner that the biochar source homogeneously acquires oxygen-containing cation-exchanging groups in an incomplete combustion process. The invention is also directed to oxygenated biochar compositions and soil formulations containing the oxygenated biochar material.Type: ApplicationFiled: February 27, 2013Publication date: September 12, 2013Applicant: UT-BATTELLE, LLCInventors: James W. Lee, Archibald C. Buchanan, III, Barbara R. Evans, Michelle K. Kidder
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Patent number: 8398738Abstract: The invention is directed to a method for producing an oxygenated biochar material possessing a cation-exchanging property, wherein a biochar source is reacted with one or more oxygenating compounds in such a manner that the biochar source homogeneously acquires oxygen-containing cation-exchanging groups in an incomplete combustion process. The invention is also directed to oxygenated biochar compositions and soil formulations containing the oxygenated biochar material.Type: GrantFiled: January 13, 2010Date of Patent: March 19, 2013Assignee: UT-Battelle, LLCInventors: James W. Lee, Archibald C. Buchanan, III, Barbara R. Evans, Michelle K. Kidder
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Publication number: 20120135086Abstract: A composite biocompatible hydrogel material includes a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa. A calcium comprising salt is disposed in at least some of the pores. The porous polymer matrix can comprise cellulose, including bacterial cellulose. The composite can be used as a bone graft material. A method of tissue repair within the body of animals includes the steps of providing a composite biocompatible hydrogel material including a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa, and inserting the hydrogel material into cartilage or bone tissue of an animal, wherein the hydrogel material supports cell colonization in vitro for autologous cell seeding.Type: ApplicationFiled: December 29, 2011Publication date: May 31, 2012Applicants: University of Tennessee Research Foundation, UT-BATTELLE, LLCInventors: Stacy A. Hutchens, Jonathan Woodward, Barbara R. Evans, Hugh M. O'Neill
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Publication number: 20120077250Abstract: This invention provides methods for growing and maintaining photosynthetic microorganisms such as algae and cyanobacteria. More specifically, the invention provides methods of cultivation of photosynthetic microorganisms on bacterial cellulose.Type: ApplicationFiled: September 23, 2010Publication date: March 29, 2012Applicant: UT-BATTELLE, LLCInventor: Barbara R. Evans
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Patent number: 8110222Abstract: A composite biocompatible hydrogel material includes a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa. A calcium comprising salt is disposed in at least some of the pores. The porous polymer matrix can comprise cellulose, including bacterial cellulose. The composite can be used as a bone graft material. A method of tissue repair within the body of animals includes the steps of providing a composite biocompatible hydrogel material including a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa, and inserting the hydrogel material into cartilage or bone tissue of an animal, wherein the hydrogel material supports cell colonization in vitro for autologous cell seeding.Type: GrantFiled: November 15, 2002Date of Patent: February 7, 2012Assignees: UT-Battelle, LLC., University of Tennessee Research FoundationInventors: Stacy A. Hutchens, Jonathan Woodward, Barbara R. Evans, Hugh M. O'Neill
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Patent number: 8062868Abstract: An electrically conductive cellulose composite includes a cellulose matrix and an electrically conductive carbonaceous material incorporated into the cellulose matrix. The electrical conductivity of the cellulose composite is at least 10 ?S/cm at 25° C. The composite can be made by incorporating the electrically conductive carbonaceous material into a culture medium with a cellulose-producing organism, such as Gluconoacetobacter hansenii. The composites can be used to form electrodes, such as for use in membrane electrode assemblies for fuel cells.Type: GrantFiled: March 22, 2010Date of Patent: November 22, 2011Assignee: UT-Battelle, LLCInventors: Barbara R. Evans, Hugh M. O'Neill, Jonathan Woodward
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Publication number: 20110172092Abstract: The invention is directed to a method for producing an oxygenated biochar material possessing a cation-exchanging property, wherein a biochar source is reacted with one or more oxygenating compounds in such a manner that the biochar source homogeneously acquires oxygen-containing cation-exchanging groups in an incomplete combustion process. The invention is also directed to oxygenated biochar compositions and soil formulations containing the oxygenated biochar material.Type: ApplicationFiled: January 13, 2010Publication date: July 14, 2011Applicant: UT-BATTELLE, LLCInventors: James W. Lee, Archibald C. Buchanan, III, Barbara R. Evans, Michelle K. Kidder
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Patent number: 7955759Abstract: A method for the deposition of metals in bacterial cellulose and for the employment of the metallized bacterial cellulose in the construction of fuel cells and other electronic devices is disclosed. The method for impregnating bacterial cellulose with a metal comprises placing a bacterial cellulose matrix in a solution of a metal salt such that the metal salt is reduced to metallic form and the metal precipitates in or on the matrix. The method for the construction of a fuel cell comprises placing a hydrated bacterial cellulose support structure in a solution of a metal salt such that the metal precipitates in or on the support structure, inserting contact wires into two pieces of the metal impregnated support structure, placing the two pieces of metal impregnated support structure on opposite sides of a layer of hydrated bacterial cellulose, and dehydrating the three layer structure to create a fuel cell.Type: GrantFiled: September 23, 2010Date of Patent: June 7, 2011Assignee: UT-Battelle LLCInventors: Barbara R. Evans, Hugh M. O'Neill, Valerie Malyvanh Jansen, Jonathan Woodward
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Publication number: 20110014525Abstract: A method for the deposition of metals in bacterial cellulose and for the employment of the metallized bacterial cellulose in the construction of fuel cells and other electronic devices is disclosed. The method for impregnating bacterial cellulose with a metal comprises placing a bacterial cellulose matrix in a solution of a metal salt such that the metal salt is reduced to metallic form and the metal precipitates in or on the matrix. The method for the construction of a fuel cell comprises placing a hydrated bacterial cellulose support structure in a solution of a metal salt such that the metal precipitates in or on the support structure, inserting contact wires into two pieces of the metal impregnated support structure, placing the two pieces of metal impregnated support structure on opposite sides of a layer of hydrated bacterial cellulose, and dehydrating the three layer structure to create a fuel cell.Type: ApplicationFiled: September 23, 2010Publication date: January 20, 2011Inventors: Barbara R. Evans, Hugh M. O'Neill, Valerie Malyvanh Jansen, Jonathan Woodward
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Patent number: 7803477Abstract: A method for the deposition of metals in bacterial cellulose and for the employment of the metallized bacterial cellulose in the construction of fuel cells and other electronic devices is disclosed. The method for impregnating bacterial cellulose with a metal comprises placing a bacterial cellulose matrix in a solution of a metal salt such that the metal salt is reduced to metallic form and the metal precipitates in or on the matrix. The method for the construction of a fuel cell comprises placing a hydrated bacterial cellulose support structure in a solution of a metal salt such that the metal precipitates in or on the support structure, inserting contact wires into two pieces of the metal impregnated support structure, placing the two pieces of metal impregnated support structure on opposite sides of a layer of hydrated bacterial cellulose, and dehydrating the three layer structure to create a fuel cell.Type: GrantFiled: August 19, 2005Date of Patent: September 28, 2010Assignee: UT-Battelle LLCInventors: Barbara R. Evans, Hugh M. O'Neill, Valerie Malyvanh Jansen, Jonathan Woodward
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Publication number: 20100176350Abstract: An electrically conductive cellulose composite includes a cellulose matrix and an electrically conductive carbonaceous material incorporated into the cellulose matrix. The electrical conductivity of the cellulose composite is at least 10 ?S/cm at 25° C. The composite can be made by incorporating the electrically conductive carbonaceous material into a culture medium with a cellulose-producing organism, such as Gluconoacetobacter hansenii. The composites can be used to form electrodes, such as for use in membrane electrode assemblies for fuel cells.Type: ApplicationFiled: March 22, 2010Publication date: July 15, 2010Applicant: UT-Battelle, LLCInventors: BARBARA R. EVANS, Hugh M. O'Neill, Jonathan Woodward
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Patent number: 7709133Abstract: An electrically conductive cellulose composite includes a cellulose matrix and an electrically conductive carbonaceous material incorporated into the cellulose matrix. The electrical conductivity of the cellulose composite is at least 10 ?S/cm at 25° C. The composite can be made by incorporating the electrically conductive carbonaceous material into a culture medium with a cellulose-producing organism, such as Gluconoacetobacter hansenii. The composites can be used to form electrodes, such as for use in membrane electrode assemblies for fuel cells.Type: GrantFiled: June 15, 2005Date of Patent: May 4, 2010Assignee: UT-Battelle, LLCInventors: Barbara R. Evans, Hugh M. O'Neill, Jonathan Woodward
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Publication number: 20090209897Abstract: A photoactivated antimicrobial wound dressing comprising a photocatalytic membrane is provided. The photocatalytic membrane comprises a bacterial cellulose hydrogel membrane having photocatalytic particles are immobilized within the membrane and are activated when exposed to light, at which time they react with oxygen-based species forming reactive oxygen species. The reactive oxygen species further react with microbes to kill the microbes.Type: ApplicationFiled: February 20, 2008Publication date: August 20, 2009Applicants: LOTEC, INC. DBA VESTA SCIENCES, INC., UT-BATTELLE, LLCInventors: Santosh Y. Limaye, Shanthi Subramanian, Barbara R. Evans, Hugh M. O'Neill