Patents Assigned to UNIVERSITAET AUGSBURG
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Publication number: 20220212194Abstract: Various aspects of the present invention relate to the control and manipulation of fluidic species, for example, in microfluidic systems. In one set of embodiments, droplets may be sorted using surface acoustic waves. The droplets may contain cells or other species. In some cases, the surface acoustic waves may be created using a surface acoustic wave generator such as an interdigitated transducer, and/or a material such as a piezoelectric substrate. The piezoelectric substrate may be isolated front the microfluidic substrate except at or proximate the location where the droplets arc sorted, e.g., into first or second microfluidic channels. At such locations, the microfluidic substrate may be coupled to the piezoelectric substrate (or other material) by one or more coupling regions. In some cases, relatively high sorting rates may be achieved, e.g., at rates of at least about 1,000 Hz, at least about 10,000 Hz, or at least about 100,000 Hz, and in some embodiments, with high cell viability after sorting.Type: ApplicationFiled: December 14, 2021Publication date: July 7, 2022Applicants: President and Fellows of Harvard College, Universität AugsburgInventors: David A. Weitz, Thomas Franke, Achim Wixforth, Lothar Schmid, Jeremy Agresti, Adam R. Abate
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Patent number: 11229911Abstract: Various aspects of the present invention relate to the control and manipulation of fluidic species, for example, in microfluidic systems. In one set of embodiments, droplets may be sorted using surface acoustic waves. The droplets may contain cells or other species. In some cases, the surface acoustic waves may be created using a surface acoustic wave generator such as an interdigitated transducer, and/or a material such as a piezoelectric substrate. The piezoelectric substrate may be isolated from the microfluidic substrate except at or proximate the location where the droplets are sorted, e.g., into first or second microfluidic channels. At such locations, the microfluidic substrate may be coupled to the piezoelectric substrate (or other material) by one or more coupling regions. In some cases, relatively high sorting rates may be achieved, e.g., at rates of at least about 1,000 Hz, at least about 10,000 Hz, or at least about 100,000 Hz, and in some embodiments, with high cell viability after sorting.Type: GrantFiled: January 2, 2019Date of Patent: January 25, 2022Assignees: President and Fellows of Harvard College, Universität AugsburgInventors: David A. Weitz, Thomas Franke, Achim Wixforth, Lothar Schmid, Jeremy Agresti, Adam R. Abate
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Patent number: 10570361Abstract: Various aspects of the present invention relate to the control and manipulation of fluidic species, for example, in microfluidic systems. In one set of embodiments, droplets may be sorted using surface acoustic waves. The droplets may contain cells or other species. In some cases, the surface acoustic waves may be created using a surface acoustic wave generator such as an interdigitated transducer, and/or a material such as a piezoelectric substrate. The piezoelectric substrate may be isolated from the microfluidic substrate except at or proximate the location where the droplets are sorted, e.g., into first or second microfluidic channels. At such locations, the microfluidic substrate may be coupled to the piezoelectric substrate (or other material) by one or more coupling regions. In some cases, relatively high sorting rates may be achieved, e.g., at rates of at least about 1,000 Hz, at least about 10,000 Hz, or at least about 100,000 Hz, and in some embodiments, with high cell viability after sorting.Type: GrantFiled: May 24, 2017Date of Patent: February 25, 2020Assignees: President and Fellows of Harvard College, Universität AugsburgInventors: David A. Weitz, Thomas Franke, Achim Wixforth, Lothar Schmid, Jeremy Agresti, Adam R. Abate
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Publication number: 20190211293Abstract: Various aspects of the present invention relate to the control and manipulation of fluidic species, for example, in microfluidic systems. In one set of embodiments, droplets may be sorted using surface acoustic waves. The droplets may contain cells or other species. In some cases, the surface acoustic waves may be created using a surface acoustic wave generator such as an interdigitated transducer, and/or a material such as a piezoelectric substrate. The piezoelectric substrate may be isolated from the microfluidic substrate except at or proximate the location where the droplets are sorted, e.g., into first or second microfluidic channels. At such locations, the microfluidic substrate may be coupled to the piezoelectric substrate (or other material) by one or more coupling regions. In some cases, relatively high sorting rates may be achieved, e.g., at rates of at least about 1,000 Hz, at least about 10,000 Hz, or at least about 100,000 Hz, and in some embodiments, with high cell viability after sorting.Type: ApplicationFiled: January 2, 2019Publication date: July 11, 2019Applicants: President and Fellows of Harvard College, Universität AugsburgInventors: David A. Weitz, Thomas Franke, Achim Wixforth, Lothar Schmid, Jeremy Agresti, Adam R. Abate
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Patent number: 9865789Abstract: A thermoelectronic energy converter device (100) comprises an electron emitter (11) being adapted for a temperature-dependent release of electrons (1), an electron collector (21) being adapted for collecting the electrons (1), wherein the electron collector (21) is spaced from the electron emitter (11) by an evacuated gap (2), a gate electrode (31) being arranged between the electron emitter (11) and the electron collector (21) for subjecting the electrons (1) in the gap (2) to an accelerating electric potential, wherein the gate electrode (31) has a plurality of electrode openings (34) being arranged for transmitting electrons (1) miming from the electron emitter (11) to the electron collector (21), and a magnetic field device (50) being arranged for creating a magnetic field with magnetic field lines extending between the electron emitter and the electron collector (11, 21), wherein the magnetic field device (50) is arranged such that at least a portion of the magnetic field lines pass through the electrodeType: GrantFiled: July 30, 2012Date of Patent: January 9, 2018Assignees: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e. V., Universitaet Augsburg, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Theodore Geballe, Stefan Meir, Cyril Stephanos, Andreas Schmehl, Jochen Mannhart
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Patent number: 9695390Abstract: Various aspects of the present invention relate to the control and manipulation of fluidic species, for example, in microfluidic systems. In one set of embodiments, droplets may be sorted using surface acoustic waves. The droplets may contain cells or other species. In some cases, the surface acoustic waves may be created using a surface acoustic wave generator such as an interdigitated transducer, and/or a material such as a piezoelectric substrate. The piezoelectric substrate may be isolated from the microfluidic substrate except at or proximate the location where the droplets are sorted, e.g., into first or second microfluidic channels. At such locations, the microfluidic substrate may be coupled to the piezoelectric substrate (or other material) by one or more coupling regions. In some cases, relatively high sorting rates may be achieved, e.g., at rates of at least about 1,000 Hz, at least about 10,000 Hz, or at least about 100,000 Hz, and in some embodiments, with high cell viability after sorting.Type: GrantFiled: August 23, 2011Date of Patent: July 4, 2017Assignees: President and Fellows of Harvard College, Universität AugsburgInventors: David A. Weitz, Thomas Franke, Achim Wixforth, Lothar Schmid, Jeremy Agresti, Adam R. Abate
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Patent number: 9496060Abstract: The invention refers to a nanodevice for generating electromagnetic radiation in the terahertz frequency range, the nanodevice comprising a substrate (3) made of a dielectric material, a first graphene layer (1) arranged on the substrate (3), having a first longitudinal end being electrically connected with a source contact (source 1) and having a second longitudinal end being connected with a drain contact (drain 1), an electrically conducting layer (2) having a periodic grating structure with grating stripes (6) extending substantially in transversal direction (y), and a dielectric layer (4) arranged between the first graphene layer (1) and the conducting layer (2).Type: GrantFiled: November 9, 2012Date of Patent: November 15, 2016Assignee: UNIVERSITAET AUGSBURGInventor: Sergey Mikhailov
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Publication number: 20150243867Abstract: A thermoelectronic energy converter device (100) comprises an electron emitter (11) being adapted for a temperature-dependent release of electrons (1), an electron collector (21) being adapted for collecting the electrons (1), wherein the electron collector (21) is spaced from the electron emitter (11) by an evacuated gap (2), a gate electrode (31) being arranged between the electron emitter (11) and the electron collector (21) for subjecting the electrons (1) in the gap (2) to an accelerating electric potential, wherein the gate electrode (31) has a plurality of electrode openings (34) being arranged for transmitting electrons (1) miming from the electron emitter (11) to the electron collector (21), and a magnetic field device (50) being arranged for creating a magnetic field with magnetic field lines extending between the electron emitter and the electron collector (11, 21), wherein the magnetic field device (50) is arranged such that at least a portion of the magnetic field lines pass through the electrodeType: ApplicationFiled: July 30, 2012Publication date: August 27, 2015Applicants: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Universitaet Augsburg, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Theodore Geballe, Stefan Meir, Cyril Stephanos, Andreas Schmehl, Jochen Mannhart
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Publication number: 20130143022Abstract: The present invention relates to a method for producing diamond layers, wherein firstly, in a first growing step, diamond is grown on a growing surface of a off axis or a off-axis heterosubstrate in such a way that a texture width, in particular a polar and/or azimuthal texture width, of a diamond layer produced during the growth decreases with increasing distance from the substrate and then, in a second growing step, diamond is grown in such a way that the texture width of the diamond layer remains substantially constant as the distance from the substrate further increases, and lattice planes of the substrate being inclined by an angle greater than zero with respect to the growing surface.Type: ApplicationFiled: June 16, 2011Publication date: June 6, 2013Applicant: UNIVERSITAET AUGSBURGInventors: Matthias Schreck, Stefan Gsell, Martin Fischer
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Patent number: 7396408Abstract: This invention relates to a method for the production of diamond films with low misorientation through the deposition of diamond on a film system, whereby the film system exhibits a substrate film made of monocrystalline silicon or silicon carbide, at least one buffer film arranged on that, and at least one metal film made of a refractory metal arranged on that, whereby the diamond is deposited on the at least one metal film.Type: GrantFiled: May 3, 2004Date of Patent: July 8, 2008Assignee: Universität AugsburgInventors: Matthias Schreck, Stefan Gsell, Bernd Stritzker