Patents Assigned to King Abdulaziz City of Science and Technology (KACST)
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Patent number: 12074314Abstract: Disclosed herein are rechargeable aluminum organic batteries and active materials used therein. The cathodic materials used herein comprise a macrocycle comprising a substituted or unsubstituted phenanthrenequinone unit and a graphite flake.Type: GrantFiled: July 19, 2019Date of Patent: August 27, 2024Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST), Seoul National University R&DB FoundationInventors: James Fraser Stoddart, Dong Jun Kim, Jang Wook Choi, Dong-Joo Yoo
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Patent number: 11977028Abstract: Disclosed herein are methods for live-cell imaging, compositions for performing the live cell imaging, and methods for making the composition. The method may comprise contacting a cell with an effective amount of a catenane, irradiating the cell, and detecting exciplex emission from the catenane within the cell. The catenane may comprise two mechanically interlocked macrocycles, each of the two macrocycles comprise an aromatic fluorophore subunit, and the aromatic fluorophores are arranged in a face-to-face [? . . . ?] stack allowing for the exciplex emission.Type: GrantFiled: April 15, 2021Date of Patent: May 7, 2024Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: James Fraser Stoddart, Amine Garci, Yassine Beldjoudi
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Patent number: 11912720Abstract: Provided herein are rigid macrocycles comprising a poly(peri-naphthalene) diimide (PPNDI) submit and a second diimide subunit having both high photoluminescent and electron accumulation activities. Also provided herein are methods of preparation of the rigid macrocycles and methods of using the same.Type: GrantFiled: January 21, 2019Date of Patent: February 27, 2024Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: Siva Krishna Mohan Nalluri, James Fraser Stoddart
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Patent number: 11904025Abstract: Described herein are cyclophanes, compositions, and methods for live cell imaging. The cyclophanes comprise an ordered, cyclic arrangement of a chromophore, a first linker unit, a molecular strut, and a second linker unit. The compositions are capable of being taking up by cells and resist photobleaching under live-cell imaging conditions.Type: GrantFiled: April 16, 2019Date of Patent: February 20, 2024Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: Indranil Roy, James Fraser Stoddart
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Patent number: 11890591Abstract: Disclosed herein are lithiated cyclodextrin metal organic frameworks and method of making and using the same. A metal organic framework comprising a coordinated network of repeating units extending in three dimensions, wherein the repeating unit comprises a cyclodextrin, a first coordinating metal cation, and a second coordinating metal cation.Type: GrantFiled: April 11, 2022Date of Patent: February 6, 2024Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: James Fraser Stoddart, Hasmukh A. Patel, Zhichang Liu, Siva Krishna Mohan Nalluri
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Patent number: 11566014Abstract: Cationic radial catenane comprising a central cationic ring and two or more radial cationic rings mechanically interlocked central cationic ring and methods for making the same are disclosed herein.Type: GrantFiled: April 5, 2019Date of Patent: January 31, 2023Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: Minh T. Nguyen, James Fraser Stoddart
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Patent number: 11560644Abstract: Disclosed herein are crystalline compositions comprising tessellated rigid triangular macrocycles in a two-dimensional plane and methods of making the same.Type: GrantFiled: August 28, 2020Date of Patent: January 24, 2023Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: James Fraser Stoddart, Yassine Beldjoudi
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Patent number: 11267939Abstract: Described herein are double-strand chain compositions suitable for use in the preparation of proton conductive membranes. The double-strand chains comprise a plurality of constitutional units joined to each other through two atoms on one side of the constitutional unit and two atoms on the other side of the constitutional unit. Constitutional units comprise a dibenzo-crown ether macrocycle fused with a bicyclic aliphatic linker. Polymers, membranes, and fuel cells comprising the double-strand chain are also described herein.Type: GrantFiled: November 2, 2018Date of Patent: March 8, 2022Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: James Fraser Stoddart, Hasmukh A. Patel
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Patent number: 11254678Abstract: Disclosed herein is a mixed-valence crystal superstructure assembled from a 2:1 host-guest inclusion complex. The complex comprises an aromatic guest encircled by two macrocycles, wherein the complex has an empirical charge greater than 0 and less than 1. Methods of preparing the compositions described herein are also disclosed.Type: GrantFiled: June 4, 2019Date of Patent: February 22, 2022Assignees: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: Zhichang Liu, James Fraser Stoddart
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Publication number: 20220029049Abstract: A method for fabricating an (Al,Ga,In,B)N or III-nitride semiconductor device, including performing a growth of III-nitride or (Al,Ga,In,B)N material including a p-n junction with an active region and using metal-organic chemical vapor deposition (MOCVD) or chemical vapor deposition; and performing a subsequent regrowth of n-type (Al,Ga,In,B)N or III-nitride material using MOCVD or chemical vapor deposition while utilizing a pulsed delta n-type doping scheme to realize an abrupt, smoother surface of the n-type material and a higher carrier concentration in the n-type material. In another example, the method comprises forming a mesa having a top surface; and activating magnesium in the p-type GaN of the (Al,Ga,In,B)N material through openings in the top surface that expose the p-type GaN's surface. The openings are formed before or after the subsequent regrowth of the tunnel junction.Type: ApplicationFiled: October 7, 2021Publication date: January 27, 2022Applicants: The Regents of the University of California, King Abdulaziz City For Science And Technology (KACST)Inventors: Abdullah Ibrahim Alhassan, Ahmed Alyamani, Abdulrahman Albadri, James S. Speck, Steven P. DenBaars
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Patent number: 11155554Abstract: Provided herein are rigid macrocycles comprising a first redox-active subunit and a second redox-active subunit, wherein the first redox-active unit and the second redox-active unit are different subunits. Also provided herein are methods of preparation of the rigid macrocycles and use thereof, for example, in the first of energy generation and storage.Type: GrantFiled: March 16, 2017Date of Patent: October 26, 2021Assignees: Northwestern University, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventors: James Fraser Stoddart, Siva Krishna Mohan Nalluri, Zhichang Liu
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Patent number: 11158760Abstract: A method for fabricating an (Al,Ga,In,B)N or III-nitride semiconductor device, including performing a growth of III-nitride or (Al,Ga,In,B)N material including a p-n junction with an active region and using metal-organic chemical vapor deposition (MOCVD) or chemical vapor deposition; and performing a subsequent regrowth of n-type (Al,Ga,In,B)N or III-nitride material using MOCVD or chemical vapor deposition while utilizing a pulsed delta n-type doping scheme to realize an abrupt, smoother surface of the n-type material and a higher carrier concentration in the n-type material. In another example, the method comprises forming a mesa having a top surface; and activating magnesium in the p-type GaN of the (Al,Ga,In,B)N material through openings in the top surface that expose the p-type GaN's surface. The openings are formed before or after the subsequent regrowth of the tunnel junction.Type: GrantFiled: February 7, 2019Date of Patent: October 26, 2021Assignees: The Regents of the University of California, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventors: Abdullah Ibrahim Alhassan, James S. Speck, Steven P. DenBaars, Ahmed Alyamani, Abdulrahman Albadri
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Patent number: 11091443Abstract: Provided herein are substituted haloimidazole crystals, the substituted haloimidazole crystal comprising a substituted haloimidazole compound wherein the substituents are selected from the group consisting of hydrogen, an alkyl, and a halogen. The substituted haloimidazole crystals may further comprise second substituted haloimidazole. The substituted haloimidazole crystals may be piezoelectric, ferroelectric, flexible, or any combination thereof. Also provided herein are methods for preparing substituted haloimidazole crystals.Type: GrantFiled: April 12, 2017Date of Patent: August 17, 2021Assignees: NORTHWESTERN UNIVERSITY, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST), UCHICAGO ARGONNE, LLCInventors: Magdalena Owczarek, Karl A. Hujsak, Daniel P. Ferris, Aleksandrs Prokofjevs, Dravid P. Vinayak, James Fraser Stoddart, Daniel Seungbum Hong
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Patent number: 11023680Abstract: The invention provides a method and system for automatically detecting semantic errors in a text. In order to detect the semantic errors in the text, the method generates a first set of features and a second set of features corresponding to each word in the text. A first set of features corresponds to statistical features of a word and a second set of features for a word corresponds to the features generated for a plurality of words surrounding the word in the text using matrix factorization techniques. The method, then, combines a first set of features and a second set of features to generate a third set of features corresponding to each word in the text. Thereafter, the method utilizes an Artificial Neural Network (ANN) model to detect semantic validity of each word based on a corresponding third set of features.Type: GrantFiled: February 17, 2016Date of Patent: June 1, 2021Assignee: THE KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventors: Ibrahim A Almosallam, Manal N Almutery, Marwa M Khan, Lulwah M Al-Yahyan, Abdulrahman I Almuhareb, Mohamed I Alkanhal
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Publication number: 20210122767Abstract: Provided herein are rigid macrocycles comprising a poly(peri-naphthalene) diimide (PPNDI) submit and a second diimide subunit having both high photoluminescent and electron accumulation activities. Also provided herein are methods of preparation of the rigid macrocycles and methods of using the same.Type: ApplicationFiled: January 21, 2019Publication date: April 29, 2021Applicants: Northwestern University, King Abdulaziz City for Science and Technology (KACST)Inventors: Siva Krishna Mohan Nalluri, James Fraser Sioddart
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Patent number: 10981792Abstract: A 3D structure of the graphite-titanium-nanocomposite complex and a method of preparing the graphite-titanium-nanocomposite complex are disclosed. The Graphite-titanium-nanocomposite complex includes a metal core associated with the two phases, amine functionalized graphite, and amine functionalized titanium. The method of preparation includes amine functionalizing of graphite and titanium with coupling agents to produce amine functionalized titanium and graphite, further mixing with a metal ion solution for synthesizing an ion complex. Trisodium citrate solution and sodium borohydride solution is added to the ion complex to prepare a 3D structure of the graphite-titanium-nanocomposite complex, employed as a catalyst.Type: GrantFiled: May 27, 2020Date of Patent: April 20, 2021Assignee: THE KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventors: Nezar Hassan M Khdary, Waleed Saad Ibrahim Alkhuraiji
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Publication number: 20210062365Abstract: Disclosed herein are crystalline compositions comprising tessellated rigid triangular macrocycles in a two-dimensional plane and methods of making the same.Type: ApplicationFiled: August 28, 2020Publication date: March 4, 2021Applicants: NORTHWESTERN UNIVERSITY, King Abdulaziz City for Science and Technology (KACST)Inventors: James Fraser Stoddart, Yassine Beldjoudi
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Patent number: 10870067Abstract: The invention provides a method and apparatus for purifying water. The apparatus includes a water still for receiving water and a hot air maintained in a heat-exchanging relationship to obtain a hot water and a cold air. The apparatus also includes one or more water purification units configured to receive the hot water from the water still in which the hot water is further heated using thermal energy received from one or more thermal energy sources to obtain steam and waste matter. A water purification unit of the one or more water purification units includes a waste matter remover for removing the waste matter from the water purification unit. The water still includes a heat-exchanging unit configured to receive the steam from the one or more water purification units. The steam received at the heat-exchanging unit is condensed to obtain purified water within the heat-exchanging unit using the cold air.Type: GrantFiled: October 19, 2015Date of Patent: December 22, 2020Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventor: Mazen A Ba-abbad
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Patent number: 10727796Abstract: The invention provides a Low-voltage Differential Signaling (LVDS) receiver circuit that comprises a folded-cascode operational transconductance amplifier (OTA) that includes a pair of input branches and a pair of output branches. The pair of input branches of the folded-cascode OTA includes a p-channel metal-oxide semiconductor (PMOS) input transistor pair connected to a first supply voltage domain. The pair of output branches includes an output circuit connected to a second supply voltage domain. The LVDS receiver circuit further includes a common-mode feedback circuit connected to the pair of output branches of the folded-cascode OTA that controls the second supply voltage domain. The LVDS receiver circuit further includes a regenerative buffer circuit connected to the pair of output branches of the folded-cascode OTA and an output generated from the pair of output branches of the folded-cascode OTA directly operates the regenerative buffer circuit to produce a distortion-free output signal.Type: GrantFiled: August 17, 2016Date of Patent: July 28, 2020Assignee: THE KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventors: Mohammed Sulaiman BenSaleh, Syed Arsalan Jawed, Yasir Mehmood Siddiqi, Waqas Siddiqi, Shahab Ahmed Najmi
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Patent number: 10685835Abstract: A III-nitride tunnel junction with a modified p-n interface, wherein the modified p-n interface includes a delta-doped layer to reduce tunneling resistance. The delta-doped layer may be doped using donor atoms comprised of Oxygen (O), Germanium (Ge) or Silicon (Si); acceptor atoms comprised of Magnesium (Mg) or Zinc (Zn); or impurities comprised of Iron (Fe) or Carbon (C).Type: GrantFiled: November 1, 2016Date of Patent: June 16, 2020Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventors: Benjamin P. Yonkee, Erin C. Young, John T. Leonard, Tal Margalith, James S. Speck, Steven P. DenBaars, Shuji Nakamura