Abstract: Variable thermal resistors, systems, and methods suitable for modulating heat transport between a heat source and a heat sink based on a degree of compression of a reversibly-compressible, open-pore graphene foam within the variable thermal resistors. The variable thermal resistor is configured to controllably vary heat transport therethrough by controlling the degree of compression of the graphene foam.
Type:
Grant
Filed:
September 27, 2021
Date of Patent:
November 5, 2024
Assignee:
Purdue Research Foundation
Inventors:
Xiulin Ruan, Amy Marie Marconnet, Tingting Du, Luis Delgado
Abstract: A novel catalyst composition and its use in the dehydrogenation of alkanes to olefins. The catalyst comprises a Group VIII noble metal and a metal selected from the group consisting of manganese, vanadium, chromium, titanium, and combinations thereof, on a support. The Group VIII noble metal can be platinum, palladium, osmium, rhodium, rubidium, iridium, and combinations thereof. The support can be silicon dioxide, titanium dioxide, aluminum oxide, silica-alumina, cerium dioxide, zirconium dioxide, magnesium oxide, metal modified silica, silica-pillared clays, silica-pillared micas, metal oxide modified silica-pillared mica, silica-pillared tetrasilicic mica, silica-pillared taeniolite, zeolite, molecular sieve, and combinations thereof. The catalyst composition is an active and selective catalyst for the catalytic dehydrogenation of alkanes to olefins.
Type:
Grant
Filed:
December 20, 2021
Date of Patent:
November 5, 2024
Assignee:
PURDUE RESEARCH FOUNDATION
Inventors:
Jeffrey T. Miller, Zhenwei Wu, Evan C. Wegener, Stephen Purdy, Nicole J. Libretto
Abstract: Summary: The invention relates to a temperature sensor, full-A magnetic element (3) that has at least one magnetic Layer (1), its magnetic properties depend on the temperature characterized in that—The magnetic layer (1) has a vortex-shaped magnetization distribution with a magnetic vortex core (2) has, wherein the vortex-shaped magnetization distribution is formed in a layer plane and the vortex core (2) is formed perpendicular to the layer plane,—An excitation unit (15) which is used to excite the vortex-shaped Magnetization distribution to a gyrotropic magnetization motion is provided,—A detection unit (16) for detecting a resonance frequency the gyrotropic magnetization movement is provided and—An evaluation unit (19) for determining a temperature from the resonance frequency of the gyrotropic magnetization movement is provided.
Abstract: Systems and methods capable for use in the development of high-speed, shape-transitioning, inward-turning inlets for air-breathing hypersonic vehicles, and inlets formed thereby. The systems and methods preferably provide for designing high-speed inlets for air-breathing hypersonic vehicles, wherein unique solutions are defined in each osculating plane of the inlet. Such systems and methods optionally provide an optimization process for tuning the post throat-shock Mach number of the inlet, and/or designs a shock-capture surface using a parallel-streamlines methodology, and/or a double cowl-lip geometry to allow flow to spill overboard.
Type:
Grant
Filed:
August 31, 2023
Date of Patent:
November 5, 2024
Assignees:
Purdue Research Foundation, University of Notre Dame Du Lac
Inventors:
Mark Edward Noftz, Joseph Stephen Jewell, Andrew James Shuck, Jonathan Poggie, Andrew Nixon Bustard, Thomas James Juliano
Abstract: The present disclosure relates to compounds that are useful as near-infrared fluorescence probes, wherein the compounds include i) a ligand that binds to a target receptor protein, ii) a dye molecule, and iii) a linker molecule that comprises an amino acid or derivative thereof. The disclosure further describes methods and compositions for making and using the compounds, methods incorporating the compounds, and kits incorporating the compounds. The disclosure also relates to compositions for incorporating the compounds as used for the targeted imaging of tumors. Conjugation of the amino acid linking groups increase specificity and detection of the compound. Methods and compositions for use thereof in diagnostic imaging are contemplated.
Type:
Grant
Filed:
November 25, 2020
Date of Patent:
November 5, 2024
Assignee:
Purdue Research Foundation
Inventors:
Philip Stewart Low, Sumith A. Kularatne, Sakkarapalayam M. Mahalingam
Abstract: A method of measuring temperature of a battery having an internally disposed thermal protection arrangement is disclosed which includes providing at least one sensor holder having an electrode side and a housing side disposed within a housing, with at least one cavity provided on the electrode side, providing at least one temperature sensor placed in the at least one cavity of the at least one sensor holder, the outer surface of the at least one temperature sensor being flush with the remaining surface of the at least one sensor holder, attaching the at least one sensor holder to one of a first electrode or a second electrode of the battery, coupling the at least one temperature sensor to a header, and measuring the temperature of the battery.
Type:
Grant
Filed:
August 16, 2022
Date of Patent:
November 5, 2024
Assignee:
Purdue Research Foundation
Inventors:
Vikas Tomar, Bing Li, Vilas G. Pol, Ryan Andrew Adams, Mihit Hitendra Parekh
Abstract: A runway incursion avoidance system includes a plurality of surveillance sub-systems that are configured to detect whether an approach and a surface of an aviation runway is currently occupied or will soon be occupied by an object, such as an aircraft, vehicle, pedestrian, wild animal, or other foreign object. The surveillance sub-systems each broadcast one or more occupancy states of the aviation runway. The runway incursion avoidance system further includes a plurality of runway status light sub-systems that control one or more runway status lights depending on the occupancy states broadcast by the surveillance sub-systems. The runway status lights may include Departure and Approach Warning Lights (DALs) to indicate runway status to aircraft taking off from the runway and landing on the runway, or Runway Entrance Lights (RELs) to indicate runway status to aircraft, vehicles, and pedestrians preparing to cross a runway.
Abstract: The invention generally relates to high-throughput label-free enzymatic bioassays using desorption electrospray ionization-mass spectrometry (DESI-MS).
Type:
Grant
Filed:
December 20, 2022
Date of Patent:
October 29, 2024
Assignee:
Purdue Research Foundation
Inventors:
Robert Graham Cooks, Nicolás M. Morato, Dylan T. Holden
Abstract: A field-effect transistor (FET) includes a fin, an insulator region, and at least one gate. The fin has a doped first region, a doped second region, and an interior region between the first region and the second region. The interior region is undoped or more lightly doped than the first and second regions. The interior region of the fin is formed as a superlattice of layers of first and second materials alternating vertically. The insulator layer extends around the interior region. The gate is formed on at least a portion of the insulator region. The insulator layer and the gate are configured to generate an inhomogeneous electrostatic potential within the interior region, the inhomogeneous electrostatic potential cooperating with physical properties of the superlattice to cause scattering of charge carriers sufficient to change a quantum property of such charge carriers to change the ability of the charge carriers to move between the first and second materials.
Abstract: An ultrafast system for detecting incidence of a single photon is disclosed which includes a single photon avalanche detector having an inherent bandgap, a source of probe light configured to apply an incident beam onto the single photon avalanche detector, wherein the probe light is configured to apply energy less than the bandgap, and a probe beam detector, configured to receive a reflected probe beam from the single photon avalanche detector, wherein the probe beam detector is adapted to generate a signal signifying: i) incidence of a single photon from a control beam onto the single photon avalanche detector.
Type:
Application
Filed:
April 24, 2024
Publication date:
October 24, 2024
Applicant:
Purdue Research Foundation
Inventors:
Demid V. Sychev, Vladimir M. Shalaev, Alexandra Boltasseva, Peigang Chen, Morris Menghuan Yang, Colton B. Fruhling, Alexei Lagutchev, Alexander V. Kildishev
Abstract: A mixing assembly includes a mixing basin, first and second pluralities of mixing paddles, and at least one motor. The mixing basin includes first and second parallel shafts extending therethrough. Each of the first and second pluralities of mixing paddles are positioned in an interior of the mixing basin. Each paddle of the first plurality of mixing paddles is coupled with the first shaft and configured to rotate about a first axis and each paddle of the second plurality of mixing paddles is coupled with the second shaft and configured to counter-rotate about a second axis. The counter-rotating mixing paddles are spaced apart to define a shear gap therebetween, and the motor is operable to drive the counter-rotation of the mixing paddles.
Type:
Application
Filed:
April 22, 2024
Publication date:
October 24, 2024
Applicant:
Purdue Research Foundation
Inventors:
Paul R. Mort, Nicole K. Balog, Simon Ray, Kayli L. Henry, Carl R. Wassgren, JR., Leonard Joseph Connors
Abstract: An example device is described for facilitating polygon localization. In various aspects, the device can comprise a processor. In various instances, the device can comprise a non-transitory machine-readable memory that can store machine-readable instructions. In various cases, the processor can execute the machine-readable instructions, which can cause the processor to localize a polygon depicted in an image, based on execution of a deep learning pipeline. In various aspects, the deep learning pipeline can comprise a circular-softmax block.
Type:
Grant
Filed:
August 23, 2022
Date of Patent:
October 22, 2024
Assignees:
Hewlett-Packard Development Company, L.P., Purdue Research Foundation
Inventors:
Yang Cheng, Qian Lin, Jan Philip Allebach
Abstract: The invention generally relates to systems and methods for sample analysis using swabs. In certain aspects, the invention provides systems that include a probe having a conductive proximal portion coupled to a porous material at a distal portion of the probe that is configured to retain a portion of a sample that has contacted the porous material, and a mass spectrometer having an inlet. The system is configured such that the porous material at a distal portion of the probe is aligned over the inlet of the mass spectrometer.
Type:
Grant
Filed:
June 9, 2023
Date of Patent:
October 22, 2024
Assignee:
Purdue Research Foundation
Inventors:
Robert Graham Cooks, Alan Keith Jarmusch, Valentina Pirro
Abstract: The described compounds are of the class of cyclic nucleotides, both mono- and di-nucleotides, which play diverse roles in the prokaryotes and eukaryotes having the general formula which inhibit phosphodiesterases that inhibit cyclic mononucleotide or dinucleotides and/or both mononucleotide and dinucleotide. These compounds have potential diverse applications as antiviral, antibacterial, anti-inflammatory and anticancer agents, including cancer immunotherapy. Pharmaceutical compositions and methods for treating those kinase related diseases are within the scope of this invention.
Type:
Grant
Filed:
December 16, 2021
Date of Patent:
October 22, 2024
Assignee:
Purdue Research Foundation
Inventors:
Herman O. Sintim, George Naclerio, Caroline Karanja
Abstract: A method of determining the contributions of multiple incident photons to an output of a sensor, including providing a photonic sensor having a sensor input and capable of generating an electrical signal proportional to a number of photons interacting with the photonic sensor input as a function of time, calibrating the photonic sensor such that a response of the photonic sensor to a single photon detected is in a waveform having an amplitude and a time, wherein the product of the amplitude and the time is statistically bounded, determining a probabilistic boundary between one or more of electrical, optical, and thermal sources of noise of the sensor, acquiring a response wave form from the photonic sensor through analog-to-digital conversion with a resolution in amplitude and time corresponding to accuracy required in quantifying the response wave form, storing each acquired response wave form, individually, in a format selected from the group consisting of real-time and buffered packets in digital form, and
Abstract: The invention related to single photon emission systems based on nano-diamonds. Single-photon sources have a broad range of applications in quantum communication, quantum computing and quantum metrology.
Type:
Application
Filed:
April 29, 2024
Publication date:
October 17, 2024
Applicant:
Purdue Research Foundation
Inventors:
Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexei S. Lagutchev, Andrey N. Smolyaninov
Abstract: A method of optimizing an Urban air mobility (UAM) network is disclosed which includes receiving a predetermined vertiport network, wherein each vertiport in the predetermined network is represented by a plurality of parameters, receiving a customer demand schedule representing customer demand for each said vertiport, using a model simulating the UAM network thus outputting a solution for the plurality of parameters, inputting the output of the simulation to a genetic algorithm (GA), optimizing the GA to thereby generate an optimized solution based on minimizing a mathematical function associated with the plurality of parameters until a predetermined termination criteria associated with network size is reached, and outputting the optimized solution.
Type:
Application
Filed:
April 16, 2024
Publication date:
October 17, 2024
Applicant:
Purdue Research Foundation
Inventors:
Seejay Romello Patel, Nicholas Ilham Gunady, Keshav Rajesha Iyengar, Austin LU
Abstract: An atmospheric water harvesting system may include a cellulose composite material. The composite material may include a cellulose scaffold comprising cellulose fiber bundles. Each of the bundles may include a plurality of fibers. Hygroscopic salt ions may be intercalated in the cellulose scaffold and bound to the cellulose fibers. Water may be extracted from the composite material.
Abstract: The present invention relates to a low-cost, thermally reversible valve for paper-fluidic diagnostic devices. In particular, this invention demonstrates a tunable valve mechanism fabricated by wax-ink printing and localized heating via thin-film resistors to sequentially release liquids through a cellulose or nitrocellulose membrane. The wax-ink valve can obstruct fluid flow for a sustained time and are thermally actuated to release a controlled amount of liquid past the valve. This integrated paper-fluidic diagnostic assay device requires minimal user involvement, can be easily manufactured and tuned to meet various fluid delivery timing and incubation needs.
Type:
Grant
Filed:
April 14, 2023
Date of Patent:
October 15, 2024
Assignee:
Purdue Research Foundation
Inventors:
Jacqueline C. Linnes, Megan Zaiyi Chiu, Rui Shen