Patents by Inventor Abdullah Mohamed Asiri
Abdullah Mohamed Asiri 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: 11721455Abstract: An organic resistor is provided. The organic resistor includes a rubber substrate and a conducting film disposed over the rubber substrate. The conducting film includes a composite of carbon nanotubes and a nickel phthalocyanine complex dispersed in one or more edible oil(s). The present disclosure also relates to a method of making the organic resistor using rubbing-in technology. The organic resistor of the present invention is environmentally friendly and ecologically clean.Type: GrantFiled: January 19, 2023Date of Patent: August 8, 2023Assignee: KING ABDULAZIZ UNIVERSITYInventors: Muhammad Tariq Saeed Chani, Abdullah Mohamed Asiri, Mohammed Muzibur Rahman, Tahseen Kamal, Khasan S. Karimov
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Publication number: 20230228700Abstract: A surface modified electrode is provided. The surface modified electrode includes a glassy carbon electrode (GCE) and a nanomaterial disposed on the glassy carbon electrode. The nanomaterial comprises carbon nanotubes (CNTs), and at least one of thallium oxide nanoparticles (Tl2O3·NPs), thallium oxide (Tl2O3) nanopowder, and thallium oxide carbon nanotube nanocomposites (Tl2O3·CNT NCs). A polymer matrix is configured to bind the glassy carbon electrode with the nanomaterial. A method of preparing the surface modified electrode is also disclosed. The surface modified electrode can be implemented in a biosensor for detecting a biological molecule, like choline.Type: ApplicationFiled: January 14, 2022Publication date: July 20, 2023Inventors: Abdullah Mohamed ASIRI, Mohammed Muzibur RAHMAN, Mohammad Musarraf HUSSAIN
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Patent number: 11578033Abstract: A surface modified electrode and a method of preparing the surface modified electrode are provided. The surface modified electrode includes a glassy carbon electrode and a coating of a compound of formula I disposed on the glassy carbon electrode. The present disclosure also relates to a method of preparing the surface modified electrode. The method includes depositing a slurry of the compound of Formula I on the glassy carbon electrode to form a film and coating a polymer matrix on the film to obtain the surface modified electrode. The present disclosure also relates to a method of preparing the compound of Formula I. The method includes condensing 4-bromobenzaldehyde (4-BBD) and 4-methyl-benzenesulphonylhydrazine (4-MBSH), to obtain a first mixture and precipitating the first mixture to obtain the compound of Formula I. The surface modified electrode is used in an electrochemical sensor for the detection of metal ions.Type: GrantFiled: December 1, 2021Date of Patent: February 14, 2023Assignee: King Abdulaziz UniversityInventors: Abdullah Mohamed Asiri, Mohammed Muzibur Rahman, Muhammad Nadeem Arshad, Mohammad Musarraf Hussain
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Patent number: 11561193Abstract: A surface modified electrode is provided. The surface modified electrode includes a glassy carbon electrode (GCE) and a nanomaterial disposed on the glassy carbon electrode. The nanomaterial comprises carbon nanotubes (CNTs), and at least one of thallium oxide nanoparticles (Tl2O3.NPs), thallium oxide (Tl2O3) nanopowder, and thallium oxide carbon nanotube nanocomposites (Tl2O3.CNT NCs). A polymer matrix is configured to bind the glassy carbon electrode with the nanomaterial. A method of preparing the surface modified electrode is also disclosed. The surface modified electrode can be implemented in a biosensor for detecting a biological molecule, like choline.Type: GrantFiled: May 27, 2022Date of Patent: January 24, 2023Assignee: King Abdulaziz UniversityInventors: Abdullah Mohamed Asiri, Mohammed Muzibur Rahman, Mohammad Musarraf Hussain
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Patent number: 11459427Abstract: Provided are synthesis methods of polymerizing aniline or derivatives thereof. The production of polyaniline or polyaniline derivatives is controlled by the type of oxidant added in the reaction medium. The methods include the step of using a safe and environmentally friendly carbomethyl cellulose (CMC) or modified CMC as an oxidant in the polymerization reaction to produce polyaniline or aniline derivatives. Synthesis methods of producing O-CMC and O-CMC-S oxidants are also provided herein.Type: GrantFiled: October 7, 2021Date of Patent: October 4, 2022Assignee: KING ABDULAZIZ UNIVERSITYInventors: Khalid A. Alamry, Ajahar Khan, Abdullah Mohamed Asiri
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Patent number: 11433381Abstract: Catalysts for hydrogen production from NaBH4 by hydrolysis or alcoholysis are provided. The catalysts comprise hydrogel beads formed from alginate and starch. The hydrogel beads optionally comprise metal nanoparticles on their surfaces, and the hydrogen generation reactions are optionally conducted in the presence of one or more surfactants.Type: GrantFiled: September 10, 2021Date of Patent: September 6, 2022Assignee: KING ABDULAZIZ UNIVERSITYInventors: Sher Bahadar Khan, Mohammad Sherjeel Jhaved Khan, Tahseen Kamal, Abdullah Mohamed Asiri
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Patent number: 11413795Abstract: A method of making a composite laminate includes dequilling chicken feathers to form chicken feather fibers (CFFs). The CFFs and Ceiba Pentandra bark fibers (CPFs) are milled to form milled CFFs and milled CPFs so that the milled CFFs have a length of smaller than 200 microns and the milled CPFs have a length of smaller than 600 microns. The CFFs are treated with an amine compatibilizer to esterify carboxy groups present on keratin in the CFFs. A mixture of an epoxy resin, the milled CFFs, and the milled CPFs is solution cast to form an epoxy composite. A first carbon fabric layer and a second carbon fabric layer are placed on a front side and a backside, respectively, of the epoxy composite to form an epoxy laminate precursor. The epoxy laminate precursor is compression molded to cure the epoxy laminate precursor to form the composite laminate.Type: GrantFiled: August 12, 2021Date of Patent: August 16, 2022Assignee: King Abdulaziz UniversityInventors: Anish Khan, Abdullah Mohamed Asiri, Sanjay Mavinkere Rangappa
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Patent number: 11340187Abstract: A surface modified electrode, and methods for preparing the surface modified electrode for use in an electrochemical sensor for detection of an analyte is described. The surface modified electrode includes a copper oxide (CuO) co-doped tin dioxide (SnO2) nano-spikes disposed over a gold-plated chip. The surface modified electrode further includes a polymer matrix (nafion) configured to bind the gold-plated chip with the copper oxide (CuO) co-doped tin dioxide (SnO2) nano-spikes. The present disclosure also relates to a process of preparing the surface modified electrode. The surface modified electrode of the present disclosure can be used in electrochemical sensors for detection of analytes, like 4-nitrophenol (4-NP).Type: GrantFiled: November 8, 2021Date of Patent: May 24, 2022Assignee: KING ABDULAZIZ UNIVERSITYInventors: Abdullah Mohamed Asiri, Mohammed Muzibur Rahman, Khalid A. Alamry, Jahir Ahmed
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Patent number: 11237127Abstract: An electrochemical sensor is provided wherein the sensor includes a nanocomposite comprising zinc oxide nanoparticles, graphene oxide, and PEDOT:PSS binder polymer, wherein the nanocomposite is deposited as a film on a glassy carbon electrode. The sensor may be included in an electrochemical cell useful for methods of detecting phenylhydrazine in a solution.Type: GrantFiled: June 28, 2021Date of Patent: February 1, 2022Assignee: KING ABDULAZIZ UNIVERSITYInventors: Mohammed Muzibur Rahman, Abdullah Mohamed Asiri, Muhammad Tariq Saeed Chani
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Patent number: 11221309Abstract: An electrochemical cell that includes a working electrode, which comprises of is made of gold, with gold-coated carbon nanotubes secured thereon via a conductive binder, wherein the electrochemical cell is utilized to detect the presence of bisphenol-A, or to determine a concentration of bisphenol-A in a solution. Various embodiments of the electrochemical cell, a method of producing the electrochemical cell, and a method of using the electrochemical cell for determining a concentration of bisphenol-A in a solution are also provided.Type: GrantFiled: July 31, 2020Date of Patent: January 11, 2022Assignee: King Abdulaziz UniversityInventors: Abdullah Mohamed Asiri, Mohammed Muzibur Rahman
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Patent number: 11215576Abstract: An electrochemical cell that includes a working electrode, which comprises of is made of gold, with gold-coated carbon nanotubes secured thereon via a conductive binder, wherein the electrochemical cell is utilized to detect the presence of bisphenol-A, or to determine a concentration of bisphenol-A in a solution. Various embodiments of the electrochemical cell, a method of producing the electrochemical cell, and a method of using the electrochemical cell for determining a concentration of bisphenol-A in a solution are also provided.Type: GrantFiled: July 31, 2020Date of Patent: January 4, 2022Assignee: King Abdulaziz UniversityInventors: Abdullah Mohamed Asiri, Mohammed Muzibur Rahman
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Patent number: 11204292Abstract: A deformable differential semiconductor sensor system of pressure and/or compressive displacement is provided. The pressure sensor system includes a deformable and elastic rubber substrate, first and second carbon nanotubes conductive layers, metal free phthalocyanine-carbon nanotubes composite semiconductive layers, first and second terminals on the carbon nanotubes conductive layers and a rubber cover for receiving inputs. The conductive and semiconductive layers of the sensor system are embedded in deformable substrates by using rubbing-in technology.Type: GrantFiled: June 17, 2021Date of Patent: December 21, 2021Assignee: KING ABDULAZIZ UNIVERSITYInventors: Abdullah Mohamed Asiri, Muhammad Tariq Saeed Chani
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Patent number: 11167391Abstract: Rubber composites with regions doped with conductive material, e.g., carbon nanotubes, and patterned regions doped with both conductive material and semiconductive material, e.g., carbon nanotubes and polycrystalline silicon are created with rubbing-in technology. The composites provide for a deformable and elastic composite which maintains semiconductor operations under stress, and can be used for filtering, determining compressive force, and a variety of other applications.Type: GrantFiled: March 5, 2021Date of Patent: November 9, 2021Assignee: King Abdulaziz UniversityInventors: Muhammad Tariq Saeed Chani, Abdullah Mohamed Asiri, Khasan Karimov
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Patent number: 11103529Abstract: Provided herein are methods of killing cancer cells, comprising contacting the human liver cancer cells with a solution comprising zero-valent spherical Auo nanoparticles. Methods of treating liver cancer are also provided.Type: GrantFiled: January 5, 2021Date of Patent: August 31, 2021Assignee: King Abdulaziz UniversityInventors: Mohammed Muzibur Rahman, Abdullah Mohamed Asiri, Firoz A. D. M. Opo
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Patent number: 10994387Abstract: Rubber composites with regions doped with conductive material, e.g., carbon nanotubes, and patterned regions doped with both conductive material and semiconductive material, e.g., carbon nanotubes and polcrystalline silicon are created with rubbing-in technology. The composites provide for a deformable and elastic composite which maintains semiconductor operations under stress, and can be used for filtering, determining compressive force, and a variety of other applications.Type: GrantFiled: September 9, 2020Date of Patent: May 4, 2021Assignee: King Abdulaziz UniversityInventors: Muhammad Tariq Saeed Chani, Abdullah Mohamed Asiri, Hasan Karimov
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Patent number: 10989575Abstract: A multifunctional pressure, displacement, and temperature gradient sensor employs powders of one or more of carbon nanotubes (CNTs) or graphene. These powders are placed in a hollow body which has a fixed electrode on one end and moveable electrode on the other. The powders are compressible, and movements of the moveable electrode sliding within the sensor can be accurately detected. Thermocouples on each electrode permit measuring the gradient of temperature for the calibration of the multifunctional sensor and also for the measurement of resistance, thermoelectric voltage and thermoelectric current of the sensor.Type: GrantFiled: September 8, 2020Date of Patent: April 27, 2021Assignee: King Abdulaziz UniversityInventors: Muhammad Tariq Saeed Chani, Abdullah Mohamed Asiri, Khasan Karimov
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Patent number: 10888845Abstract: A composite photocatalyst, a method of producing said composite photocatalyst, a method of degrading an organic pollutant using the composite photocatalyst, and a method of producing hydrogen using the composite photocatalyst. The composite photocatalyst includes graphene, tungsten oxide, a metal boride, and a metal hydroxide. The photocatalyst is capable of degrading an organic pollutant when exposed to light. The photocatalyst is also capable of producing hydrogen from water when exposed to light under suitable conditions.Type: GrantFiled: July 31, 2020Date of Patent: January 12, 2021Assignee: King Abdulaziz UniversityInventors: Abdullah Mohamed Asiri, Muhammad Bilal Tahir
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Publication number: 20200386706Abstract: An electrochemical cell that includes a working electrode, which comprises of is made of gold, with gold-coated carbon nanotubes secured thereon via a conductive binder, wherein the electrochemical cell is utilized to detect the presence of bisphenol-A, or to determine a concentration of bisphenol-A in a solution. Various embodiments of the electrochemical cell, a method of producing the electrochemical cell, and a method of using the electrochemical cell for determining a concentration of bisphenol-A in a solution are also provided.Type: ApplicationFiled: July 31, 2020Publication date: December 10, 2020Applicant: King Abdulaziz UniversityInventors: Abdullah Mohamed ASIRI, Mohammed Muzibur RAHMAN
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Publication number: 20200363365Abstract: An electrochemical cell that includes a working electrode, which comprises of is made of gold, with gold-coated carbon nanotubes secured thereon via a conductive binder, wherein the electrochemical cell is utilized to detect the presence of bisphenol-A, or to determine a concentration of bisphenol-A in a solution. Various embodiments of the electrochemical cell, a method of producing the electrochemical cell, and a method of using the electrochemical cell for determining a concentration of bisphenol-A in a solution are also provided.Type: ApplicationFiled: July 31, 2020Publication date: November 19, 2020Applicant: King Abdulaziz UniversityInventors: Abdullah Mohamed ASIRI, Mohammed Muzibur RAHMAN
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Patent number: 10746686Abstract: An electrochemical cell that includes a working electrode, which comprises of is made of gold, with gold-coated carbon nanotubes secured thereon via a conductive binder, wherein the electrochemical cell is utilized to detect the presence of bisphenol-A, or to determine a concentration of bisphenol-A in a solution. Various embodiments of the electrochemical cell, a method of producing the electrochemical cell, and a method of using the electrochemical cell for determining a concentration of bisphenol-A in a solution are also provided.Type: GrantFiled: November 3, 2016Date of Patent: August 18, 2020Assignee: King Abdulaziz UniversityInventors: Abdullah Mohamed Asiri, Mohammed Muzibur Rahman