Patents by Inventor Mahmoud Almasri
Mahmoud Almasri 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: 20230258568Abstract: A plasmonic sensor achieving high sensitivities by using a metallized nanoantennae array patterned on the longitudinal side of a fiber optic cable is disclosed herein. The sensor is capable of single and multiplex detection of biomarkers, viruses, food and waterborne pathogens, proteins, and other chemical and biological specimens. Plasmonic sensor embodiments including SERS and RI sensing arrays are disclosed.Type: ApplicationFiled: February 17, 2023Publication date: August 17, 2023Inventors: Mahmoud ALMASRI, Jiayu Liu, Sura Muhsin
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Patent number: 11422134Abstract: Disclosed herein are example embodiments of a transformative sensor apparatus that is capable of detecting and quantifying the presence of a substance of interest such as a specified bacteria within a sample via changes in impedance exhibited by a detection electrode array. In an example embodiment, sensitivity is improved by including a focusing electrode array in a rampdown channel to focus a concentration of the substance of interest into a detection region. The focusing electrodes include an opposing pair of electrodes in a rampdown orientation. The focusing electrode may also include tilted thin film finger electrodes extending from the rampdown electrodes. In another example embodiment, trapping electrodes are positioned to trap a concentration of the substance of interest onto the detection electrode array.Type: GrantFiled: April 29, 2019Date of Patent: August 23, 2022Assignee: The Curators of the University of MissouriInventors: Mahmoud Almasri, Shibajyoti Ghosh Dastider, Shuping Zhang, Majed El Dweik, Nuh Sadi Yuksek, Ibrahem Jasim, Jiayu Liu
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Patent number: 11118981Abstract: A metasurface integrated microbolometer having a sensing layer (e.g., SixGeyO1-x-y). The presence of the metasurface provides selectivity with respect to wavelength, polarization and angle-of-incidence. The presence of the metasurface into the microbolometer affects conversion of electromagnetic to thermal energy, thermal response, electrical integration of the microbolometer, and the tradeoff between resistivity and temperature coefficient of resistance, thereby allowing the ability to obtain a sensing with high temperature coefficient of resistance with lower resistivity values than that of films without the metasurface. The presence of the metasurface removes the need for a Fabry-Perot cavity.Type: GrantFiled: April 17, 2019Date of Patent: September 14, 2021Assignee: The Curators of the University of MissouriInventors: Mahmoud Almasri, Edward Kinzel
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Patent number: 11005352Abstract: An energy harvesting device for generating electrical power from low-frequency oscillations includes a high-frequency cantilever, a plurality of low-frequency cantilevers each configured to contact the high-frequency cantilever in response to environmental vibrations having a frequency within a near-resonance frequency range associated with said low-frequency cantilever, an a generator that produces electrical power in response to contact between at least one of the plurality of low-frequency cantilevers and the high-frequency cantilever. The energy harvesting device may also include an impact mass coupled to a free end of each of the plurality of low-frequency cantilevers. Some aspects may include a common base to which the high-frequency cantilever and the plurality of low-frequency cantilevers are coupled. Other aspects may include the generator comprising one or more of an induction coil and magnet, a variable distance capacitor, or a piezo-electric material.Type: GrantFiled: July 16, 2019Date of Patent: May 11, 2021Inventors: Nuh Sadi Yuksek, Mahmoud Almasri
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Patent number: 10989867Abstract: A fiber-based sensor and a method of forming a fiber-based sensor using microsphere lithography techniques in which a microsphere array is applied to a surface of a tip of an optical fiber to provide for microsphere lithography fabrication of a desired pattern on the tip of the optical fiber. The characteristics of the pattern define sensing capabilities of the sensor to provide for chemical and/or biological sensing.Type: GrantFiled: April 15, 2020Date of Patent: April 27, 2021Assignee: The Curators of the University of MissouriInventors: Edward C. Kinzel, Mahmoud Almasri, Chuang Qu, Ibrahem Jasim, Jiayu Liu
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Publication number: 20200326475Abstract: A fiber-based sensor and a method of forming a fiber-based sensor using microsphere lithography techniques in which a microsphere array is applied to a surface of a tip of an optical fiber to provide for microsphere lithography fabrication of a desired pattern on the tip of the optical fiber. The characteristics of the pattern define sensing capabilities of the sensor to provide for chemical and/or biological sensing.Type: ApplicationFiled: April 15, 2020Publication date: October 15, 2020Inventors: Edward C. Kinzel, Mahmoud Almasri, Chuang Qu
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Publication number: 20200025619Abstract: A metasurface integrated microbolometer having a sensing layer (e.g., SixGeyO1-x-y). The presence of the metasurface provides selectivity with respect to wavelength, polarization and angle-of-incidence. The presence of the metasurface into the microbolometer affects conversion of electromagnetic to thermal energy, thermal response, electrical integration of the microbolometer, and the tradeoff between resistivity and temperature coefficient of resistance, thereby allowing the ability to obtain a sensing with high temperature coefficient of resistance with lower resistivity values than that of films without the metasurface. The presence of the metasurface removes the need for a Fabry-Perot cavity.Type: ApplicationFiled: April 17, 2019Publication date: January 23, 2020Inventors: Mahmoud Almasri, Edward Kinzel
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Publication number: 20190341836Abstract: An energy harvesting device for generating electrical power from low-frequency oscillations includes a high-frequency cantilever, a plurality of low-frequency cantilevers each configured to contact the high-frequency cantilever in response to environmental vibrations having a frequency within a near-resonance frequency range associated with said low-frequency cantilever, an a generator that produces electrical power in response to contact between at least one of the plurality of low-frequency cantilevers and the high-frequency cantilever. The energy harvesting device may also include an impact mass coupled to a free end of each of the plurality of low-frequency cantilevers. Some aspects may include a common base to which the high-frequency cantilever and the plurality of low-frequency cantilevers are coupled. Other aspects may include the generator comprising one or more of an induction coil and magnet, a variable distance capacitor, or a piezo-electric material.Type: ApplicationFiled: July 16, 2019Publication date: November 7, 2019Applicant: The Curators of the University of MissouriInventors: Nuh Sadi Yuksek, Mahmoud Almasri
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Patent number: 10447135Abstract: An energy harvesting device for generating electrical power from low-frequency oscillations includes a high-frequency cantilever, a plurality of low-frequency cantilevers each configured to contact the high-frequency cantilever in response to environmental vibrations having a frequency within a near-resonance frequency range associated with said low-frequency cantilever, an a generator that produces electrical power in response to contact between at least one of the plurality of low-frequency cantilevers and the high-frequency cantilever. The energy harvesting device may also include an impact mass coupled to a free end of each of the plurality of low-frequency cantilevers. Some aspects may include a common base to which the high-frequency cantilever and the plurality of low-frequency cantilevers are coupled. Other aspects may include the generator comprising one or more of an induction coil and magnet, a variable distance capacitor, or a piezo-electric material.Type: GrantFiled: September 28, 2016Date of Patent: October 15, 2019Assignee: The Curators of the University of MissouriInventors: Nuh Sadi Yuksek, Mahmoud Almasri
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Publication number: 20190250159Abstract: Disclosed herein are example embodiments of a transformative sensor apparatus that is capable of detecting and quantifying the presence of a substance of interest such as a specified bacteria within a sample via changes in impedance exhibited by a detection electrode array. In an example embodiment, sensitivity is improved by including a focusing electrode array in a rampdown channel to focus a concentration of the substance of interest into a detection region. The focusing electrodes include an opposing pair of electrodes in a rampdown orientation. The focusing electrode may also include tilted thin film finger electrodes extending from the rampdown electrodes. In another example embodiment, trapping electrodes are positioned to trap a concentration of the substance of interest onto the detection electrode array.Type: ApplicationFiled: April 29, 2019Publication date: August 15, 2019Inventors: Mahmoud Almasri, Shibajyoti Ghosh Dastider, Shuping Zhang, Majed El Dweik, Nuh Sadi Yuksek, Ibrahem Jasim, Jiayu Liu
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Patent number: 10274492Abstract: Disclosed herein are example embodiments of a transformative sensor apparatus that is capable of detecting and quantifying the presence of a substance of interest such as a specified bacteria within a sample via changes in impedance exhibited by a detection electrode array. In an example embodiment, sensitivity is improved by including a focusing electrode array in a rampdown channel to focus a concentration of the substance of interest into a detection region. The focusing electrodes include an opposing pair of electrodes in a rampdown orientation. The focusing electrode may also include tilted thin film finger electrodes extending from the rampdown electrodes. In another example embodiment, trapping electrodes are positioned to trap a concentration of the substance of interest onto the detection electrode array.Type: GrantFiled: April 8, 2016Date of Patent: April 30, 2019Assignee: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Mahmoud Almasri, Shibajyoti Ghosh Dastider, Shuping Zhang, Majed El Dweik, Nuh Sadi Yuksek, Ibrahem Jasim, Jiayu Liu
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Publication number: 20170093267Abstract: An energy harvesting device for generating electrical power from low-frequency oscillations includes a high-frequency cantilever, a plurality of low-frequency cantilevers each configured to contact the high-frequency cantilever in response to environmental vibrations having a frequency within a near-resonance frequency range associated with said low-frequency cantilever, an a generator that produces electrical power in response to contact between at least one of the plurality of low-frequency cantilevers and the high-frequency cantilever. The energy harvesting device may also include an impact mass coupled to a free end of each of the plurality of low-frequency cantilevers. Some aspects may include a common base to which the high-frequency cantilever and the plurality of low-frequency cantilevers are coupled. Other aspects may include the generator comprising one or more of an induction coil and magnet, a variable distance capacitor, or a piezo-electric material.Type: ApplicationFiled: September 28, 2016Publication date: March 30, 2017Applicant: The Curators of the University of MissouriInventors: NUH SADI YUKSEK, MAHMOUD ALMASRI
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Publication number: 20160299138Abstract: Disclosed herein are example embodiments of a transformative sensor apparatus that is capable of detecting and quantifying the presence of a substance of interest such as a specified bacteria within a sample via changes in impedance exhibited by a detection electrode array. In an example embodiment, sensitivity is improved by including a focusing electrode array in a rampdown channel to focus a concentration of the substance of interest into a detection region. The focusing electrodes include an opposing pair of electrodes in a rampdown orientation. The focusing electrode may also include tilted thin film finger electrodes extending from the rampdown electrodes. In another example embodiment, trapping electrodes are positioned to trap a concentration of the substance of interest onto the detection electrode array.Type: ApplicationFiled: April 8, 2016Publication date: October 13, 2016Inventors: Mahmoud Almasri, Shibajyoti Ghosh Dastider, Shuping Zhang, Majed El Dweik, Nuh Sadi Yuksek, Ibrahem Jasim