Patents by Inventor Xiao-Mei Zhao
Xiao-Mei Zhao 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: 8012382Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: GrantFiled: March 4, 2009Date of Patent: September 6, 2011Assignee: President and Fellows of Harvard CollegeInventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca J. Jackman, Xiao-Mei Zhao, Stephen P. Smith, Christian Marzolin, Mara G. Prentiss, George M. Whitesides
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Publication number: 20090266418Abstract: The present invention includes a template, an optoelectronic device and methods for making the same. The optoelectronic device includes a first substrate; a first electrode disposed on the first substrate; a first interdigitating, nano-structured charge-transfer molded material (e.g., a polymer) with a first electron affinity disposed on the first electrode; a second interdigitating, nano-structured charge-transfer material (e.g., single molecules, quantum dots, or particles) with a second electron affinity disposed on the first interdigitating, nano-structured charge-transfer material; a second electrode disposed in the second interdigitating, nano-structured charge-transfer material; and a second substrate disposed on the second electrode.Type: ApplicationFiled: February 18, 2009Publication date: October 29, 2009Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Wenchuang Hu, Mukti N. Aryal, Fatih Buyukserin, Jinming Gao, Xiao-Mei Zhao
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Publication number: 20090196826Abstract: The present invention includes compositions, methods and pharmaceutical compositions formed by template-directed polymer molding by contacting a porous template with one or more layers of polymeric material coated on a release layer coated on a substrate, applying pressure to the porous template, the substrates or both and separating the porous template from the polymer material to form one or more polymer nonspherical nanostructures with one or more layers on the substrate. The template includes one or more nonspherical nanostructure features. The size and shape of the one or more single- or multi-layer polymeric nonspherical nanostructures are controlled by the one or more nonspherical nanostructure features and the polymer material optionally including one or more active agents with or without retardants, dyes, etc.Type: ApplicationFiled: December 17, 2008Publication date: August 6, 2009Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Jinming Gao, Wenchuang Hu, Mukti N. Aryal, Fatih Buyukserin, Xiao-Mei Zhao
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Publication number: 20090166903Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: ApplicationFiled: March 4, 2009Publication date: July 2, 2009Applicant: President and Fellows of Harvard CollegeInventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca J. Jackman, Xiao-Mei Zhao, Stephen P. Smith, Mara G. Prentiss, George M. Whitesides, Christian Marzolin
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Publication number: 20080116608Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: ApplicationFiled: December 12, 2007Publication date: May 22, 2008Applicant: President and Fellows of Harvard CollegeInventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca Jackman, Xiao-Mei Zhao, Stephen Smith, Mara Prentiss, George Whitesides, Christian Marzolin
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Publication number: 20040178523Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: ApplicationFiled: October 1, 2003Publication date: September 16, 2004Applicant: President and Fellows of Harvard CollegeInventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca J. Jackman, Xiao-Mei Zhao, Stephen P. Smith, Mara G. Prentiss, George M. Whitesides, Christian Marzolin
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Method of forming articles including waveguides via capillary micromolding and microtransfer molding
Patent number: 6752942Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: GrantFiled: October 30, 2001Date of Patent: June 22, 2004Assignee: President and Fellows of Harvard CollegeInventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca J. Jackman, Xiao-Mei Zhao, Stephen P. Smith, Mara G. Prentiss, George M. Whitesides, Christian Marzolin -
Patent number: 6677175Abstract: The invention provides a method for producing an optical waveguide that includes the steps of: (a) forming a core structure, the core structure including an at least partially cured core composition, on a master defining a waveguide pattern; (b) applying over the top of the core structure and the master a cladding layer including a liquid cladding composition; (c) curing the cladding layer to form a core/cladding combination; and removing the core/cladding combination from the master so as to expose at least a portion of the core structure, wherein the refractive index of the core material is at least about 0.05 percent higher than the refractive index of the cladding material.Type: GrantFiled: July 27, 2001Date of Patent: January 13, 2004Assignees: Promerus, LLC, 3M Innovative Properties CompanyInventors: Xiao-Mei Zhao, Ramakrishna Ravikiran, Phillip S. Neal, Robert A. Shick, James E. Watson, Thomas M. Kafka, Davy Chum, Raymond P. Johnston
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Patent number: 6660192Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: GrantFiled: August 9, 2000Date of Patent: December 9, 2003Inventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca J. Jackman, Xiao-Mei Zhao, Stephen P. Smith, Mara G. Prentiss, George M. Whitesides, Christian Marzolin
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Patent number: 6538087Abstract: The present invention relates to polymer compositions and methods of polymerizing such compositions. Furthermore, the present invention relates to polymer compositions that are useful in forming waveguides and to methods for making waveguides using such polymer compositions.Type: GrantFiled: July 27, 2001Date of Patent: March 25, 2003Assignee: Promerus, LLCInventors: Xiao-Mei Zhao, Ramakrishna Ravikiran, Phillip S. Neal, Robert A. Shick, Larry F. Rhodes, Andrew Bell
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Publication number: 20020103317Abstract: The present invention relates to polymer compositions and methods of polymerizing such compositions. Furthermore, the present invention relates to polymer compositions that are useful in forming waveguides and to methods for making waveguides using such polymer compositions.Type: ApplicationFiled: July 27, 2001Publication date: August 1, 2002Inventors: Xiao-Mei Zhao, Ramakrishna Ravikiran, Phillip S. Neal, Robert A. Shick, Larry F. Rhodes, Andrew Bell
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Method of forming articles including waveguides via capillary micromolding and microtransfer molding
Publication number: 20020066978Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: ApplicationFiled: October 30, 2001Publication date: June 6, 2002Inventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca J. Jackman, Xiao-Mei Zhao, Stephen P. Smith, Mara G. Prentiss, George M. Whitesides, Christian Marzolin -
Publication number: 20020064896Abstract: The invention provides a method for producing an optical waveguide that includes the steps of: (a) forming a core structure, the core structure including an at least partially cured core composition, on a master defining a waveguide pattern; (b) applying over the top of the core structure and the master a cladding layer including a liquid cladding composition; (c) curing the cladding layer to form a core/cladding combination; and removing the core/cladding combination from the master so as to expose at least a portion of the core structure, wherein the refractive index of the core material is at least about 0.05 percent higher than the refractive index of the cladding material.Type: ApplicationFiled: July 27, 2001Publication date: May 30, 2002Inventors: Xiao-Mei Zhao, Ramakrishna Ravikiran, Phillip S. Neal, Robert A. Shick, James E. Watson, Thomas M. Kafka, Davy Chum, Raymond P. Johnston
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Method of forming articles including waveguides via capillary micromolding and microtransfer molding
Patent number: 6355198Abstract: Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or nonplanar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface.Type: GrantFiled: January 8, 1998Date of Patent: March 12, 2002Assignee: President and Fellows of Harvard CollegeInventors: Enoch Kim, Younan Xia, Milan Mrksich, Rebecca J. Jackman, Xiao-Mei Zhao, Stephen P. Smith, Mara G. Prentiss, George M. Whitesides, Christian Marzolin