Patents by Inventor Yanke Che
Yanke Che 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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Publication number: 20180348129Abstract: A sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A? are independently chosen from N—R1, N—R2, and O such that both A and A? are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.Type: ApplicationFiled: November 21, 2017Publication date: December 6, 2018Inventors: Ling Zang, Yanke Che
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Patent number: 9823193Abstract: A sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A? are independently chosen from N—R1, N—R2, and O such that both A and A? are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.Type: GrantFiled: July 15, 2013Date of Patent: November 21, 2017Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Patent number: 9786848Abstract: The present disclosure provides methods and compositions for an organic nanofiber-based heterojunction material, comprising nano fibers of an acceptor molecule, the nano fibers coated with a donor molecule, where the acceptor molecule contains a group and the donor molecule contains a companion group, wherein the group and companion group enables strong binding between the acceptor molecule and donor molecule, the strong binding providing for efficient forward electron transfer between the acceptor molecule and donor molecule, and wherein the group and companion group minimize charge carrier recombination between the acceptor molecule and the donor molecule.Type: GrantFiled: October 14, 2011Date of Patent: October 10, 2017Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Publication number: 20150118760Abstract: A fluorescence-based sensor can comprise a nanofiber mass of nanofibers having tubular morphology and a fluorescence detector, where fluorescence of the nanofibers decreases upon contact with a nitro-containing compound. The nanofibers can comprise carbazole-cornered, arylene-ethynylene tetracyclic macromolecules of formula I: where R1-R4 are alkyl-containing groups. The tubular morphology allows for highly selective detection of trinitrotoluene over other nitro-based compounds and oxidizing organic compounds.Type: ApplicationFiled: August 8, 2012Publication date: April 30, 2015Inventors: Ling Zang, Yanke Che, Helin Huang
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Patent number: 8889420Abstract: A photoconductive sensor compound for detecting explosives can have a structure I: where R is a morphology control group, A is a linking group, B is a electron donor that is selective for transferring electrons to PTCDI backbone upon irradiation to make the resulting nanostructures conductive, and R1 through R8 are side groups.Type: GrantFiled: December 23, 2010Date of Patent: November 18, 2014Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Patent number: 8809063Abstract: A fluorescence based sensor (10) is disclosed and described. The sensor (10) can include nanofibril materials (12) fabricated from a linear carbazole oligomer and a fluorescence detector (14). The linear carbazole oligomer can have the formula (I) wherein n is 3 to 9, R are independently selected amine sidegroups, and at least one, but not all, R is a C1 to C14 alkyl. The carbazole-based fluorescence based sensors (10) can be particularly suitable for detection of explosives and volatile nitro compounds.Type: GrantFiled: June 21, 2011Date of Patent: August 19, 2014Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Publication number: 20140147670Abstract: The present disclosure provides methods and compositions for an organic nanofiber-based heterojunction material, comprising nano fibers of an acceptor molecule, the nano fibers coated with a donor molecule, where the acceptor molecule contains a group and the donor molecule contains a companion group, wherein the group and companion group enables strong binding between the acceptor molecule and donor molecule, the strong binding providing for efficient forward electron transfer between the acceptor molecule and donor molecule, and wherein the group and companion group minimize charge carrier recombination between the acceptor molecule and the donor molecule.Type: ApplicationFiled: October 14, 2011Publication date: May 29, 2014Inventors: Ling Zang, Yanke Che
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Patent number: 8723026Abstract: A coaxial molecular stack (10) for transferring photocurrent generation in a device such as a solar cell (14) is disclosed. The device comprises a plurality of macrocyclic ?-conjugated planar molecules stackable through columnar self assembly to form a stack (10) having an axial channel (26) with an outer p-channel (22) of the nano-composite coaxial molecular stack (10). A plurality of C60 molecules are positioned coaxially within the axial channel of the stack (10) to form an inner n-channel (24) that forms a bulk heterojunction with the p-channel (22) to provide charge transport of photocurrent through the nano-composite coaxial molecular stack (10). A plurality of the stacks (16) are oriented orthogonally between first (18) and second electrodes (20) to form the device (14).Type: GrantFiled: July 27, 2010Date of Patent: May 13, 2014Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Patent number: 8703500Abstract: A chemical sensor can include a nanofiber mass of p-type nanofibers having a HOMO level greater than ?5.0 eV. Additionally, the chemical sensor can include oxygen in contact with the p-type nanofibers. Further, the chemical sensor can include a pair of electrodes in electrical contact across the nanofiber mass, where the p-type nanofibers conduct an electric current that decreases upon contact with an amine compound.Type: GrantFiled: March 23, 2011Date of Patent: April 22, 2014Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Publication number: 20130302902Abstract: A sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A? are independently chosen from N—R1, N—R2, and O such that both A and A? are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.Type: ApplicationFiled: July 15, 2013Publication date: November 14, 2013Inventors: Ling Zang, Yanke Che
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Publication number: 20130217139Abstract: A fluorescence based sensor (10) is disclosed and described. The sensor (10) can include nanofibril materials (12) fabricated from a linear carbazole oligomer and a fluorescence detector (14). The linear carbazole oligomer can have the formula (I) where n is 3 to 9, Rn are independently selected amine sidegroups, and at least one Rn is a C1 to C14 alkyl. The carbazole-based fluorescence based sensors (10) can be particularly suitable for detection of explosives and volatile nitro compounds.Type: ApplicationFiled: June 21, 2011Publication date: August 22, 2013Inventors: Ling Zang, Yanke Che
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Publication number: 20130183766Abstract: A chemical sensor can comprise a nanofiber mass of p-type nanofibers having a HOMO level greater than ?5.0 eV. Additionally, the chemical sensor can comprise oxygen in contact with the p-type nanofibers. Further, the chemical sensor can comprise a pair of electrodes in electrical contact across the nanofiber mass, where the p-type nanofibers conduct an electric current that decreases upon contact with an amine compound.Type: ApplicationFiled: March 23, 2011Publication date: July 18, 2013Applicants: University of Utah Research Foundation, University of UtahInventors: Ling Zang, Yanke Che
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Patent number: 8486708Abstract: A fluorescence sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A? are independently chosen from N—R1, N—R2, and O such that both A and A? are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can optionally be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.Type: GrantFiled: January 29, 2010Date of Patent: July 16, 2013Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Publication number: 20130065319Abstract: A photoconductive sensor compound for detecting explosives can have a structure I: where R is a morphology control group, A is a linking group, B is a electron donor that is selective for transferring electrons to PTCDI backbone upon irradiation to make the resulting nanostructures conductive, and R1 through R8 are side groups.Type: ApplicationFiled: December 23, 2010Publication date: March 14, 2013Inventors: Ling Zang, Yanke Che
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Publication number: 20120186639Abstract: A coaxial molecular stack (10) for transferring photocurrent generation in a device such as a solar cell (14) is disclosed. The device comprises a plurality of macrocyclic ?-conjugated planar molecules stackable through columnar self assembly to form a stack (10) having an axial channel (26) with an outer p-channel (22) of the nano-composite coaxial molecular stack (10). A plurality of C60 molecules are positioned coaxially within the axial channel of the stack (10) to form an inner n-channel (24) that forms a bulk heterojunction with the p-channel (22) to provide charge transport of photocurrent through the nano-composite coaxial molecular stack (10). A plurality of the stacks (16) are oriented orthogonally between first (18) and second electrodes (20) to form the device (14).Type: ApplicationFiled: July 27, 2010Publication date: July 26, 2012Inventors: Ling Zang, Yanke Che
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Publication number: 20120186648Abstract: A photovoltaic device (10) having a coaxial molecular stack (12) for transferring photocurrent is disclosed. The device (10) comprises a plurality of coaxial molecular stacks (12) located between and oriented substantially perpendicular to first (14) and second (16) electrodes to provide charge transport of photocurrent through each coaxial molecular stack (12) in the photovoltaic device (10). Each coaxial molecular stack (12) comprises a plurality of ?-conjugated planar supramolecules (18) stackable through columnar self assembly to form the coaxial molecular stack (12). Each supramolecule (18) is comprised of a ?-conjugated hub (20) covalently appended to multiple copies of an electron acceptor spoke (22) to form an outer n-channel with a coaxial inner p-channel.Type: ApplicationFiled: August 9, 2010Publication date: July 26, 2012Inventors: Ling Zang, Yanke Che
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Patent number: 8058075Abstract: A fluorescent sensor compound based on a perylene core is described and disclosed. The fluorescent sensor compound for detecting mercury can have a structure I: where A and A? are linking groups, B and B? are binding ligands which are selective for binding with Hg2+, and R1 through R8 are side groups. These fluorescence sensor materials are robust against photobleaching, while still providing exceptional detection sensitivity and selectivity.Type: GrantFiled: December 9, 2009Date of Patent: November 15, 2011Assignee: University of Utah Research FoundationInventors: Ling Zang, Yanke Che
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Publication number: 20100197039Abstract: A fluorescence sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula where A and A? are independently chosen from N—R1, N—R2, and O such that both A and A? are not O, and R1 through R10 are amine binding moieties, solubility enhancing groups, or hydrogen such that at least one of R1 through R10 is an amine binding moiety. This perylene compound can optionally be formed into well-defined nanofibers. Upon deposition onto a substrate, the entangled nanofibers form a meshlike, highly porous film, which enables expedient diffusion of gaseous analyte molecules within the film matrix, leading to a milliseconds response for vapor sensing.Type: ApplicationFiled: January 29, 2010Publication date: August 5, 2010Inventors: Ling Zang, Yanke Che
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Publication number: 20100144043Abstract: A fluorescent sensor compound based on a perylene core is described and disclosed. The fluorescent sensor compound for detecting mercury can have a structure I: where A and A? are linking groups, B and B? are binding ligands which are selective for binding with Hg2+, and R1 through R8 are side groups. These fluorescence sensor materials are robust against photobleaching, while still providing exceptional detection sensitivity and selectivity.Type: ApplicationFiled: December 9, 2009Publication date: June 10, 2010Inventors: Ling Zang, Yanke Che