Patents by Inventor Gustaaf Borghs
Gustaaf Borghs 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: 20150335257Abstract: A kit of parts for electrical stimulation and/or recording of activity of excitable cells in a tissue is described. The kit of parts comprises on the one hand a probe guiding means comprising a plurality of accommodation channels, each channel being adapted for accommodating a probe device having a plurality of stimulation means and/or recording means located on a die. At least one of the plurality of accommodation channels has a curved shape. The kit of parts also comprises at least one probe device for electrical stimulation and/or recording of activity of excitable cells in a tissue, the probe device comprising a plurality of stimulation means and/or recording means located on a die having a thinned and etched surface for providing flexibility to the probe device.Type: ApplicationFiled: June 28, 2012Publication date: November 26, 2015Applicants: IMEC VZW, ATLAS NEUROENGINEERING BVBA, VIB, Katholieke Universiteit Leuven, KU LEUVEN R&DInventors: Bruce MCNAUGHTON, Gustaaf BORGHS, Arno AARTS, Peter PEUMANS
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Publication number: 20150197742Abstract: The present invention relates to a population of monodisperse magnetic nanoparticles with a diameter between 1 and 100 nm which are coated with a layer with hydrophilic end groups. Herein the layer with hydrophilic end groups comprises an inner layer of monosaturated and/or monounsaturated fatty acids bound to said nanoparticles and bound to said fatty acids, an outer layer of a phospholipid conjugated to a monomethoxy polyethyleneglycol (PEG) comprising a hydrophilic end group, or comprises a covalently bound hydrophilic layer bound to said nanoparticles.Type: ApplicationFiled: December 8, 2014Publication date: July 16, 2015Applicants: KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D, IMECInventors: Deepak Balaji Thimiri Govinda Raj, Liesbet Lagae, Wim Annaert, Gustaaf Borghs
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Patent number: 8936935Abstract: The present invention relates to a population of monodisperse magnetic nanoparticles with a diameter between 1 and 100 nm which are coated with a layer with hydrophilic end groups. Herein the layer with hydrophilic end groups comprises an inner layer of monosaturated and/or monounsaturated fatty acids bound to said nanoparticles and bound to said fatty acids, an outer layer of a phospholipid conjugated to a monomethoxy polyethyleneglycol (PEG) comprising a hydrophilic end group, or comprises a covalently bound hydrophilic layer bound to said nanoparticles.Type: GrantFiled: May 19, 2011Date of Patent: January 20, 2015Assignees: IMEC, Katholieke Universiteit Leuven, K.U. Leuven R&DInventors: Deepak Balaji Thimiri Govinda Raj, Liesbet Lagae, Wim Annaert, Gustaaf Borghs
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Patent number: 8810787Abstract: Methods and apparatus in the field of single molecule sensing are described, e.g. for molecular analysis of analytes such as molecular analytes, e.g. nucleic acids, proteins, polypeptides, peptides, lipids and polysaccharides. Molecular spectroscopy on a molecule translocating through a solid-state nanopore is described. Optical spectroscopic signals are enhanced by plasmonic field-confinement and antenna effects and probed in transmission by plasmon-enabled transmission of light through an optical channel that overlaps with the physical channel.Type: GrantFiled: December 9, 2009Date of Patent: August 19, 2014Assignees: IMEC, Katholieke Universiteit Leuven, K.U. Leuven R&DInventors: Pol Van Dorpe, Iwijn De Vlaminck, Liesbet Lagae, Gustaaf Borghs
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Patent number: 8758688Abstract: The present invention is related to the localized/patterned deposition and/or desorption of (bio)molecules using microelectronic structures. Often pre-existing structures needed for proper functioning of the device (e.g. sensors, . . . ) can be used as individually addressable control structures to achieve localized deposition through thermal and/or electrochemical spotting, thereby reducing the need for and simplifying additional processing steps to achieve localized/patterned deposition. If these multi-purpose structures are not available, additional control structures can be implemented, using microelectronic VLSI production technology.Type: GrantFiled: December 22, 2004Date of Patent: June 24, 2014Assignees: IMEC, Katholieke Universiteit LeuvenInventors: Koen De Keersmaecker, Gustaaf Borghs, Piet Herdewijn
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Patent number: 8724113Abstract: A method for forming a nanostructure penetrating a layer and the device made thereof is disclosed. In one aspect, the device has a substrate, a layer present thereon, and a nanostructure penetrating the layer. The nanostructure defines a nanoscale passageway through which a molecule to be analyzed can pass through. The nanostructure has, in cross-sectional view, a substantially triangular shape. This shape is particularly achieved by growth of an epitaxial layer having crystal facets defining tilted sidewalls of the nanostructure. It is highly suitably for use for optical characterization of molecular structure, particularly with surface plasmon enhanced transmission spectroscopy.Type: GrantFiled: May 2, 2013Date of Patent: May 13, 2014Assignees: IMEC, Katholieke Universiteit LeuvenInventors: Kai Cheng, Pol Van Dorpe, Liesbet Lagae, Gustaaf Borghs, Chang Chen
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Publication number: 20130237021Abstract: A method is disclosed for producing Group III-N field-effect devices, such as HEMT, MOSHFET, MISHFET or MESFET devices, comprising two active layers, e.g. a GaN/AlGaN layer. The method produces an enhancement mode device of this type, i.e. a normally-off device, by providing a passivation layer on the AlGaN layer, etching a hole in the passivation layer and not in the layers underlying the passivation layer, and depositing the gate contact in the hole, while the source and drain are deposited directly on the passivation layer. The characteristics of the active layers and/or of the gate are chosen such that no two-dimensional electron gas layer is present underneath the gate, when a zero voltage is applied to the gate. A device with this behavior is also disclosed.Type: ApplicationFiled: February 27, 2013Publication date: September 12, 2013Applicants: Katholieke Universiteit Leuven, IMECInventors: Joff Derluyn, Steven Boeykens, Marianne Germain, Gustaaf Borghs
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Patent number: 8437001Abstract: A method for forming a nanostructure penetrating a layer and the device made thereof is disclosed. In one aspect, the device has a substrate, a layer present thereon, and a nanostructure penetrating the layer. The nanostructure defines a nanoscale passageway through which a molecule to be analyzed can pass through. The nanostructure has, in cross-sectional view, a substantially triangular shape. This shape is particularly achieved by growth of an epitaxial layer having crystal facets defining tilted sidewalls of the nanostructure. It is highly suitably for use for optical characterization of molecular structure, particularly with surface plasmon enhanced transmission spectroscopy.Type: GrantFiled: June 9, 2011Date of Patent: May 7, 2013Assignees: IMEC, Katholieke Universiteit LeuvenInventors: Kai Cheng, Pol Van Dorpe, Liesbet Lagae, Gustaaf Borghs, Chang Chen
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Patent number: 8399911Abstract: A method is disclosed for producing Group III-N field-effect devices, such as HEMT, MOSHFET, MISHFET or MESFET devices, comprising two active layers, e.g. a GaN/AlGaN layer. The method produces an enhancement mode device of this type, i.e. a normally-off device, by providing a passivation layer on the AlGaN layer, etching a hole in the passivation layer and not in the layers underlying the passivation layer, and depositing the gate contact in the hole, while the source and drain are deposited directly on the passivation layer. The characteristics of the active layers and/or of the gate are chosen such that no two-dimensional electron gas layer is present underneath the gate, when a zero voltage is applied to the gate. A device with this behavior is also disclosed.Type: GrantFiled: June 6, 2007Date of Patent: March 19, 2013Assignee: IMECInventors: Joff Derluyn, Steven Boeykens, Marianne Germain, Gustaaf Borghs
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Patent number: 8198390Abstract: A water soluble functional polyethylene glycol-grafted polysiloxane polymer comprising a polysiloxane backbone and polyethylene glycol side chains is provided having the general formula: wherein A is selected from the group consisting of hydrogen, methyl, methoxy and functional polyethylene glycol based chains, B is a functional group for binding biologically-sensitive materials, D is a functional group for binding to a substrate, m is from 3 to 5, v is from 0 to 5, w is from 4 to 11, x is from 0 to 35 and z is from 1 to 33. In order to be water soluble, the polysiloxane polymer h the following properties: x+y+z is from 8 to 40, n is from 8 to 30, and y is from 7 to 35.Type: GrantFiled: April 19, 2010Date of Patent: June 12, 2012Assignee: IMECInventors: Cheng Zhou, Gustaaf Borghs, Wim Laureyn
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Publication number: 20120057163Abstract: A method for forming a nanostructure penetrating a layer and the device made thereof is disclosed. In one aspect, the device has a substrate, a layer present thereon, and a nanostructure penetrating the layer. The nanostructure defines a nanoscale passageway through which a molecule to be analyzed can pass through. The nanostructure has, in cross-sectional view, a substantially triangular shape. This shape is particularly achieved by growth of an epitaxial layer having crystal facets defining tilted sidewalls of the nanostructure. It is highly suitably for use for optical characterization of molecular structure, particularly with surface plasmon enhanced transmission spectroscopy.Type: ApplicationFiled: June 9, 2011Publication date: March 8, 2012Applicants: Katholieke Universiteit Leuven, IMECInventors: Kai Cheng, Pol Van Dorpe, Liesbet Lagae, Gustaaf Borghs, Chang Chen
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Publication number: 20110312056Abstract: The present invention relates to a population of monodisperse magnetic nanoparticles with a diameter between 1 and 100 nm which are coated with a layer with hydrophilic end groups. Herein the layer with hydrophilic end groups comprises an inner layer of monosaturated and/or monounsaturated fatty acids bound to said nanoparticles and bound to said fatty acids, an outer layer of a phospholipid conjugated to a monomethoxy polyethyleneglycol (PEG) comprising a hydrophilic end group, or comprises a covalently bound hydrophilic layer bound to said nanoparticles.Type: ApplicationFiled: May 19, 2011Publication date: December 22, 2011Applicants: KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D, IMECInventors: Deepak Balaji Thimiri Govinda Raj, Liesbet Lagae, Wim Annaert, Gustaaf Borghs
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Publication number: 20110249259Abstract: Methods and apparatus in the field of single molecule sensing are described, e.g. for molecular analysis of analytes such as molecular analytes, e.g. nucleic acids, proteins, polypeptides, peptides, lipids and polysaccharides. Molecular spectroscopy on a molecule translocating through a solid-state nanopore is described. Optical spectroscopic signals are enhanced by plasmonic field-confinement and antenna effects and probed in transmission by plasmon-enabled transmission of light through an optical channel that overlaps with the physical channel.Type: ApplicationFiled: December 9, 2009Publication date: October 13, 2011Applicants: KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D, IMECInventors: Pol Van Dorpe, Iwijn De Vlaminck, Liesbet Lagae, Gustaaf Borghs
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Patent number: 8017509Abstract: The present invention relates a method for forming a monocrystalline GeN layer (4) on a substrate (1) comprising at least a Ge surface (3). The method comprises, while heating the substrate (1) to a temperature between 550° C. and 940° C., exposing the substrate (1) to a nitrogen gas flow. The present invention furthermore provides a structure comprising a monocrystalline GeN layer (4) on a substrate (1). The monocrystalline GeN formed by the method according to embodiments of the invention allows passivation of surface states present at the Ge surface (3).Type: GrantFiled: July 20, 2007Date of Patent: September 13, 2011Assignees: IMEC, Vrije Universiteit BrusselInventors: Ruben Lieten, Stefan Degroote, Gustaaf Borghs
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Publication number: 20110089520Abstract: The present invention relates a method for forming a monocrystalline GeN layer (4) on a substrate (1) comprising at least a Ge surface (3). The method comprises, while heating the substrate (1) to a temperature between 550° C. and 940° C., exposing the substrate (1) to a nitrogen gas flow. The present invention furthermore provides a structure comprising a monocrystalline GeN layer (4) on a substrate (1). The monocrystalline GeN formed by the method according to embodiments of the invention allows passivation of surface states present at the Ge surface (3).Type: ApplicationFiled: July 20, 2007Publication date: April 21, 2011Inventors: Ruben Lieten, Stefan Degroote, Gustaaf Borghs
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Patent number: 7902820Abstract: Certain inventive aspects provide local field imaging with high spatial, time and field resolution by using an array of Hall effect sensors that can be individually read out. The design combines semiconductor Hall sensors and switches that isolate the addressed Hall sensor from the rest of the array. The compact design allows for large and very dense Hall sensor arrays that can be read out in a straightforward way.Type: GrantFiled: April 26, 2006Date of Patent: March 8, 2011Assignees: IMEC, Katholieke Universiteit LeuvenInventors: Koen Vervaeke, Gustaaf Borghs, Victor V. Moshchalkov
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Publication number: 20100204415Abstract: A water soluble functional polyethylene glycol-grafted polysiloxane polymer comprising a polysiloxane backbone and polyethylene glycol side chains is provided having the general formula: wherein A is selected from the group consisting of hydrogen, methyl, methoxy and functional polyethylene glycol based chains, B is a functional group for binding biologically-sensitive materials, D is a functional group for binding to a substrate, m is from 3 to 5, v is from 0 to 5, w is from 4 to 11, x is from 0 to 35 and z is from 1 to 33. In order to be water soluble, the polysiloxane polymer h the following properties: x+y+z is from 8 to 40, n is from 8 to 30, and y is from 7 to 35.Type: ApplicationFiled: April 19, 2010Publication date: August 12, 2010Applicant: IMECInventors: Cheng Zhou, Gustaaf Borghs, Wim Laureyn
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Patent number: 7728094Abstract: A water soluble functional polyethylene glycol-grafted polysiloxane polymer comprising a polysiloxane backbone and polyethylene glycol side chains is provided having the general formula: wherein A is selected from the group consisting of hydrogen, methyl, methoxy and functional polyethylene glycol based chains, B is a functional group for binding biologically-sensitive materials, D is a functional group for binding to a substrate, m is from 3 to 5, v is from 0 to 5, w is from 4 to 11, x is from 0 to 35 and z is from 1 to 33. In order to be water soluble, the polysiloxane polymer h the following properties: x+y+z is from 8 to 40, n is from 8 to 30, and y is from 7 to 35.Type: GrantFiled: May 3, 2005Date of Patent: June 1, 2010Assignee: IMECInventors: Cheng Zhou, Gustaaf Borghs, Wim Laureyn
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Patent number: 7719280Abstract: A detection system having a receiver for detecting a material having a magnetic resonance response to illumination by pulses of ultra-wideband (UWB) electromagnetic radiation is disclosed. The receiver comprises a detector for detecting the pulses after they have interacted with the material, and a discriminator arranged to identify in the detected pulses the magnetic resonance response of the material. By scanning an item tagged with a tag having a material having a magnetic resonant response, by illuminating the item with UWB pulses and identifying in detected pulses the magnetic resonance response of the material, items can be located, imaged, or activated. The magnetic resonance response of the tag can cause activation of the tag. The tag can have a magnetic resonance response arranged to provide an identifiable magnetic resonance signature such that different tags can be identified and distinguished by their signatures.Type: GrantFiled: May 17, 2007Date of Patent: May 18, 2010Assignee: IMECInventors: Liesbet Lagae, Gustaaf Borghs
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Publication number: 20080252293Abstract: A detection system having a receiver for detecting a material having a magnetic resonance response to illumination by pulses of ultra-wideband (UWB) electromagnetic radiation is disclosed. The receiver comprises a detector for detecting the pulses after they have interacted with the material, and a discriminator arranged to identify in the detected pulses the magnetic resonance response of the material. By scanning an item tagged with a tag having a material having a magnetic resonant response, by illuminating the item with UWB pulses and identifying in detected pulses the magnetic resonance response of the material, items can be located, imaged, or activated. The magnetic resonance response of the tag can cause activation of the tag. The tag can have a magnetic resonance response arranged to provide an identifiable magnetic resonance signature such that different tags can be identified and distinguished by their signatures.Type: ApplicationFiled: May 17, 2007Publication date: October 16, 2008Applicant: Interuniversitair Microelektronica Centrum vzw (IMEC)Inventors: Liesbet Lagae, Gustaaf Borghs