Patent
US 9,620,727Title: GRAPHENE-CONTAINING PLATELETS AND ELECTRONIC DEVICES, AND METHOD OF EXFOLIATING
LAAKSONEN, Paivi, AHOPELTO, Jouni, LINDER, Markus
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,620,727Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 presents the structure of one protein that can be used according to an embodiment, namely a HFBI protein;
Figure 2 presents a schematic drawing of proteins adhered on the surface of a graphene layer according to one embodiment; 20
Figure 3 is a schematic drawing that depicts a cross-section of a platelet according to one embodiment;
Figure 4 is a schematic drawing that depicts a cross-section of a platelet according to another embodiment;
Figure 5 is a schematic drawing that depicts a cross-section of a platelet according to 25 third embodiment;
Figure 6 is a schematic drawing that depicts a cross-section of a platelet according to fourth embodiment;
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
Figure 8 shows a diffraction pattern measured from the graphene piece of
Figure 9 presents intensities of the diffraction peaks measured from the graphene piece of
Figure 10 shows protein exfoliated graphene flakes and HOPG pillars in one 5 experiment.
Figure 11 presents a schematic cross-section of an electronic device according to an embodiment.
Figure 12 presents a schematic cross-section of an electronic device according to another embodiment. 10
Figure 13 presents a schematic cross-section of an electronic device according to a further embodiment. Definitions Graphene refers generally to material that consists essentially of a one-atom-thick planar sheet of sp2-bonded carbon atoms. In graphene, the carbon atoms are densely 15 packed in a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 1, wherein the proteins include amphiphilic proteins.
The method of claim 1, wherein the proteins include hydrophobins.
The method of claim 1, wherein the proteins include fusion proteins comprising at least two functional parts such that at least one of the functional parts is formed by a hydrophobin.
The method of claim 1, wherein the proteins form a layer on the surface.
The method of claim 1, wherein said treatment comprises immersing the surface in a solution containing the proteins.
The method of claim 1, wherein said treatment comprises: 2 Art Umt 1783 Exam in er Da m el H. Miller SenalNo. 13/203,481 Docket No. 3424-00 1. PCT.US forming a layer of said proteins, touching the formed layer of proteins with the surface in order to adhere the layer of proteins on the surface, and pressing the layer of proteins on the surface against a substrate in order to stamp the graphene on the substrate.
The method of claim 1, comprising exposing the surface to ultrasonic waves in order to facilitate exfoliation.
The method of claim 1, wherein the surface is a surface of a highly oriented graphite body.
The method of claim 1, wherein the surface contains patterned features in order to produce platelets with predetermined shape.
The method of claim 1, wherein the proteins include a plurality of proteins each having a hydrophobic part that is capable of adhering to graphene.
The method of claim 1, wherein the proteins include a plurality of proteins capable of adhering to each other in order to form a network of proteins.
The method of claim 1, wherein the exfoliation occurs at a temperature less than 100 0C.
The method of claim 1, wherein the force is induced by acoustic energy, mechanical energy, or a combination thereof.
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A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface, said proteins including hydrophobins.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface of a highly oriented graphite body, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 36, wherein said proteins include hydrophobins.
The method of claim 36, wherein the proteins form a layer on the surface of the graphene layer.
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Materials described outside the worked examples.
graphene
proteins (generic)
Measurements and analyses referenced in the patent, with their drawing references.
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
Patent
Atlas literature
Patent
US 9,620,727Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 presents the structure of one protein that can be used according to an embodiment, namely a HFBI protein;
Figure 2 presents a schematic drawing of proteins adhered on the surface of a graphene layer according to one embodiment; 20
Figure 3 is a schematic drawing that depicts a cross-section of a platelet according to one embodiment;
Figure 4 is a schematic drawing that depicts a cross-section of a platelet according to another embodiment;
Figure 5 is a schematic drawing that depicts a cross-section of a platelet according to 25 third embodiment;
Figure 6 is a schematic drawing that depicts a cross-section of a platelet according to fourth embodiment;
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
Figure 8 shows a diffraction pattern measured from the graphene piece of
Figure 9 presents intensities of the diffraction peaks measured from the graphene piece of
Figure 10 shows protein exfoliated graphene flakes and HOPG pillars in one 5 experiment.
Figure 11 presents a schematic cross-section of an electronic device according to an embodiment.
Figure 12 presents a schematic cross-section of an electronic device according to another embodiment. 10
Figure 13 presents a schematic cross-section of an electronic device according to a further embodiment. Definitions Graphene refers generally to material that consists essentially of a one-atom-thick planar sheet of sp2-bonded carbon atoms. In graphene, the carbon atoms are densely 15 packed in a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 1, wherein the proteins include amphiphilic proteins.
The method of claim 1, wherein the proteins include hydrophobins.
The method of claim 1, wherein the proteins include fusion proteins comprising at least two functional parts such that at least one of the functional parts is formed by a hydrophobin.
The method of claim 1, wherein the proteins form a layer on the surface.
The method of claim 1, wherein said treatment comprises immersing the surface in a solution containing the proteins.
The method of claim 1, wherein said treatment comprises: 2 Art Umt 1783 Exam in er Da m el H. Miller SenalNo. 13/203,481 Docket No. 3424-00 1. PCT.US forming a layer of said proteins, touching the formed layer of proteins with the surface in order to adhere the layer of proteins on the surface, and pressing the layer of proteins on the surface against a substrate in order to stamp the graphene on the substrate.
The method of claim 1, comprising exposing the surface to ultrasonic waves in order to facilitate exfoliation.
The method of claim 1, wherein the surface is a surface of a highly oriented graphite body.
The method of claim 1, wherein the surface contains patterned features in order to produce platelets with predetermined shape.
The method of claim 1, wherein the proteins include a plurality of proteins each having a hydrophobic part that is capable of adhering to graphene.
The method of claim 1, wherein the proteins include a plurality of proteins capable of adhering to each other in order to form a network of proteins.
The method of claim 1, wherein the exfoliation occurs at a temperature less than 100 0C.
The method of claim 1, wherein the force is induced by acoustic energy, mechanical energy, or a combination thereof.
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A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface, said proteins including hydrophobins.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface of a highly oriented graphite body, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 36, wherein said proteins include hydrophobins.
The method of claim 36, wherein the proteins form a layer on the surface of the graphene layer.
canceled
Materials described outside the worked examples.
graphene
proteins (generic)
Measurements and analyses referenced in the patent, with their drawing references.
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
Patent
Atlas literature
Patent
US 9,620,727Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 presents the structure of one protein that can be used according to an embodiment, namely a HFBI protein;
Figure 2 presents a schematic drawing of proteins adhered on the surface of a graphene layer according to one embodiment; 20
Figure 3 is a schematic drawing that depicts a cross-section of a platelet according to one embodiment;
Figure 4 is a schematic drawing that depicts a cross-section of a platelet according to another embodiment;
Figure 5 is a schematic drawing that depicts a cross-section of a platelet according to 25 third embodiment;
Figure 6 is a schematic drawing that depicts a cross-section of a platelet according to fourth embodiment;
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
Figure 8 shows a diffraction pattern measured from the graphene piece of
Figure 9 presents intensities of the diffraction peaks measured from the graphene piece of
Figure 10 shows protein exfoliated graphene flakes and HOPG pillars in one 5 experiment.
Figure 11 presents a schematic cross-section of an electronic device according to an embodiment.
Figure 12 presents a schematic cross-section of an electronic device according to another embodiment. 10
Figure 13 presents a schematic cross-section of an electronic device according to a further embodiment. Definitions Graphene refers generally to material that consists essentially of a one-atom-thick planar sheet of sp2-bonded carbon atoms. In graphene, the carbon atoms are densely 15 packed in a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 1, wherein the proteins include amphiphilic proteins.
The method of claim 1, wherein the proteins include hydrophobins.
The method of claim 1, wherein the proteins include fusion proteins comprising at least two functional parts such that at least one of the functional parts is formed by a hydrophobin.
The method of claim 1, wherein the proteins form a layer on the surface.
The method of claim 1, wherein said treatment comprises immersing the surface in a solution containing the proteins.
The method of claim 1, wherein said treatment comprises: 2 Art Umt 1783 Exam in er Da m el H. Miller SenalNo. 13/203,481 Docket No. 3424-00 1. PCT.US forming a layer of said proteins, touching the formed layer of proteins with the surface in order to adhere the layer of proteins on the surface, and pressing the layer of proteins on the surface against a substrate in order to stamp the graphene on the substrate.
The method of claim 1, comprising exposing the surface to ultrasonic waves in order to facilitate exfoliation.
The method of claim 1, wherein the surface is a surface of a highly oriented graphite body.
The method of claim 1, wherein the surface contains patterned features in order to produce platelets with predetermined shape.
The method of claim 1, wherein the proteins include a plurality of proteins each having a hydrophobic part that is capable of adhering to graphene.
The method of claim 1, wherein the proteins include a plurality of proteins capable of adhering to each other in order to form a network of proteins.
The method of claim 1, wherein the exfoliation occurs at a temperature less than 100 0C.
The method of claim 1, wherein the force is induced by acoustic energy, mechanical energy, or a combination thereof.
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A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface, said proteins including hydrophobins.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface of a highly oriented graphite body, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 36, wherein said proteins include hydrophobins.
The method of claim 36, wherein the proteins form a layer on the surface of the graphene layer.
canceled
Materials described outside the worked examples.
graphene
proteins (generic)
Measurements and analyses referenced in the patent, with their drawing references.
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
Patent
Atlas literature
Patent
US 9,620,727Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 presents the structure of one protein that can be used according to an embodiment, namely a HFBI protein;
Figure 2 presents a schematic drawing of proteins adhered on the surface of a graphene layer according to one embodiment; 20
Figure 3 is a schematic drawing that depicts a cross-section of a platelet according to one embodiment;
Figure 4 is a schematic drawing that depicts a cross-section of a platelet according to another embodiment;
Figure 5 is a schematic drawing that depicts a cross-section of a platelet according to 25 third embodiment;
Figure 6 is a schematic drawing that depicts a cross-section of a platelet according to fourth embodiment;
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
Figure 8 shows a diffraction pattern measured from the graphene piece of
Figure 9 presents intensities of the diffraction peaks measured from the graphene piece of
Figure 10 shows protein exfoliated graphene flakes and HOPG pillars in one 5 experiment.
Figure 11 presents a schematic cross-section of an electronic device according to an embodiment.
Figure 12 presents a schematic cross-section of an electronic device according to another embodiment. 10
Figure 13 presents a schematic cross-section of an electronic device according to a further embodiment. Definitions Graphene refers generally to material that consists essentially of a one-atom-thick planar sheet of sp2-bonded carbon atoms. In graphene, the carbon atoms are densely 15 packed in a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 1, wherein the proteins include amphiphilic proteins.
The method of claim 1, wherein the proteins include hydrophobins.
The method of claim 1, wherein the proteins include fusion proteins comprising at least two functional parts such that at least one of the functional parts is formed by a hydrophobin.
The method of claim 1, wherein the proteins form a layer on the surface.
The method of claim 1, wherein said treatment comprises immersing the surface in a solution containing the proteins.
The method of claim 1, wherein said treatment comprises: 2 Art Umt 1783 Exam in er Da m el H. Miller SenalNo. 13/203,481 Docket No. 3424-00 1. PCT.US forming a layer of said proteins, touching the formed layer of proteins with the surface in order to adhere the layer of proteins on the surface, and pressing the layer of proteins on the surface against a substrate in order to stamp the graphene on the substrate.
The method of claim 1, comprising exposing the surface to ultrasonic waves in order to facilitate exfoliation.
The method of claim 1, wherein the surface is a surface of a highly oriented graphite body.
The method of claim 1, wherein the surface contains patterned features in order to produce platelets with predetermined shape.
The method of claim 1, wherein the proteins include a plurality of proteins each having a hydrophobic part that is capable of adhering to graphene.
The method of claim 1, wherein the proteins include a plurality of proteins capable of adhering to each other in order to form a network of proteins.
The method of claim 1, wherein the exfoliation occurs at a temperature less than 100 0C.
The method of claim 1, wherein the force is induced by acoustic energy, mechanical energy, or a combination thereof.
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A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface, said proteins including hydrophobins.
A method of producing graphene-containing platelets by exfoliating a graphene layer from a surface of a highly oriented graphite body, the method comprising facilitating exfoliation by adhering proteins to the surface and applying a force to the proteins such that the proteins deliver the force to the surface, thereby separating the graphene layer from the surface.
The method of claim 36, wherein said proteins include hydrophobins.
The method of claim 36, wherein the proteins form a layer on the surface of the graphene layer.
canceled
Materials described outside the worked examples.
graphene
proteins (generic)
Measurements and analyses referenced in the patent, with their drawing references.
Figure 7 shows a TEM image of a piece of graphene according to an embodiment;
hydrophobins
class II hydrophobins
HFBI
fusion protein NCys FBI
highly oriented graphite
amphiphilic proteins
hydrophobins
class II hydrophobins
HFBI
fusion protein NCys FBI
highly oriented graphite
amphiphilic proteins
hydrophobins
class II hydrophobins
HFBI
fusion protein NCys FBI
highly oriented graphite
amphiphilic proteins
hydrophobins
class II hydrophobins
HFBI
fusion protein NCys FBI
highly oriented graphite
amphiphilic proteins