• 专利标题:   Producing graphene nanomesh based charge sensor, by generating holes in graphene to create graphene nanomesh, passivating edge of each hole of mesh, functionalizing passivated edge of each of holes of nanomesh with chemical compound.
  • 专利号:   US2013143769-A1, WO2013081854-A2, WO2013081854-A3, US9102540-B2
  • 发明人:   AFZALIARDAKANI A, HAN S, KASRY A, MAAROUF A, MARTYNA G J, NISTOR R, TSAI H
  • 专利权人:   INT BUSINESS MACHINES CORP, EGYPT NANOTECHNOLOGY CENT EGNC, INT BUSINESS MACHINES CORP, EGYPT NANOTECHNOLOGY CENT EGNC, EGYPT NANOTECHNOLOGY CENT EGNC
  • 国际专利分类:   B82Y099/00, C40B040/00, C40B040/04, C40B050/14, G01R023/00, B82Y030/00, B82Y040/00, C01B031/04, G01N033/543
  • 专利详细信息:   US2013143769-A1 06 Jun 2013 C40B-040/04 201340 Pages: 11 English
  • 申请详细信息:   US2013143769-A1 US310194 02 Dec 2011
  • 优先权号:   US310194

▎ 摘  要

NOVELTY - The method comprises: generating (1002) holes in graphene in a periodic way to create a graphene nanomesh with a patterned array of holes in terms of size and lattice constant; (1004) passivating an edge of each of the holes of the graphene nanomesh to allow functionalization of the graphene nanomesh; and functionalizing (1006) the passivated edge of each of the holes with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of the holes to increase a conductance of the graphene nanomesh and allowing the target molecule to bind to the receptor. USE - The method is useful for producing a graphene nanomesh based charge sensor (claimed) such as a biosensor, a chemical sensor, a gas sensor, an explosive sensor and a glucose sensor. ADVANTAGE - The method is capable of efficiently producing the graphene nanomesh based charge sensor with high sensitivity and stability. DETAILED DESCRIPTION - The method comprises: generating (1002) holes in graphene in a periodic way to create a graphene nanomesh with a patterned array of holes in terms of size and lattice constant; (1004) passivating an edge of each of the holes of the graphene nanomesh to allow functionalization of the graphene nanomesh; and functionalizing (1006) the passivated edge of each of the holes with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of the holes to increase a conductance of the graphene nanomesh, allowing the target molecule to bind to the receptor and causing a charge to be transferred to the graphene nanomesh to produce a graphene nanomesh based charge sensor for the target molecule. Each hole has a size of 5-20 nm. The patterned array of holes has a pitch of 3x to 6x. The size of each hole binds with the receptor of the target molecule. The receptor is a molecule that: reacts with the graphene nanomesh yielding functionalized graphene nanomesh; and chemically binds to the target molecule, irrespective of the size of the target molecule. The method further comprises controlling a density of receptor sites by controlling a characteristic of the patterned array of holes of the graphene nanomesh. A reaction is between the target molecule and the receptor leads to a net charge transfer to the graphene nanomesh for n-doping the graphene nanomesh. An INDEPENDENT CLAIM is included for a graphene nanomesh based charge sensor. DESCRIPTION OF DRAWING(S) - The diagram shows a flowchart of a method for producing a graphene nanomesh based charge sensor. Generating holes in graphene to create a graphene nanomesh (1002) Passivating an edge of each hole of the graphene nanomesh (1004) Functionalizing the passivated edge of each hole with a chemical compound. (1006)