Integration of hydrophobic magnetic nanoparticles with a quinone-functionalized Au electrode in a water-toluene two-phase assembly yields a "Write-Read-Erase" information processing system.
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Robust covalent pyrazine anchors forming highly conductive and polarity-tunable molecular junctions with carbon electrodes.
Phys Chem Chem Phys
September 2022
Key Laboratory for the Physics and Chemistry of Nanodevices, School of Electronics, Peking University, Beijing 100871, China.
In molecular electronics, electrode-molecule anchoring strategies play a crucial role in the design of stable and high-performance functional single-molecule devices. Herein, we employ aromatic pyrazine as anchors to connect a central anthracene molecule to carbon electrodes including graphene and armchair single-walled carbon nanotubes (SWCNTs), and theoretically investigate their atomic structures and electronic transport properties. These molecular junctions can be constructed condensation reactions of the central molecules terminated with -phenylenediamines with -quinone-functionalized nanogaps of graphene and SWCNT electrodes.
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Chem Commun (Camb)
October 2007
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel.
A benzoquinone monolayer-functionalized electrode reveals electrochemically or chemically controlled wettability; the hydrophobicity of the hydroquinone-modified surface is enhanced by the presence of a donor-acceptor complex with N,N'-dimethyl-4,4'-bipyridinium as the pi-electron acceptor.
View Article and Find Full Text PDFA quinone-functionalized electrode in conjunction with hydrophobic magnetic nanoparticles acts as a "Write-Read-Erase" information storage system.
Chem Commun (Camb)
December 2005
Institute of Chemistry, Hebrew University of Jerusalem, Jerusalem, 91904, Israel.
Integration of hydrophobic magnetic nanoparticles with a quinone-functionalized Au electrode in a water-toluene two-phase assembly yields a "Write-Read-Erase" information processing system.
View Article and Find Full Text PDFReconstitution of apo-glucose dehydrogenase on pyrroloquinoline quinone-functionalized au nanoparticles yields an electrically contacted biocatalyst.
J Am Chem Soc
September 2005
Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
An electrically contacted glucose dehydrogenase (GDH) enzyme electrode is fabricated by the reconstitution of the apo-GDH on pyrroloquinoline quinone (PQQ)-functionalized Au nanoparticles (Au-NPs), 1.4 nm, associated with a Au electrode. The Au-NPs functionalized with a single amine group were attached to the Au surface by 1,4-benzenedithiol bridges, and PQQ was covalently linked to the Au-NPs.
View Article and Find Full Text PDFElectrical contacting of glucose dehydrogenase by the reconstitution of a pyrroloquinoline quinone-functionalized polyaniline film associated with an Au-electrode: an in situ electrochemical SPR study.
Chem Commun (Camb)
September 2002
Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
A novel method to generate an integrated electrically contacted glucose dehydrogenase electrode by the surface reconstitution of the apo-enzyme on a pyrroloquinoline quinone (PQQ)-modified polyaniline is described. In situ electrochemical surface plasmon resonance (SPR) is used to characterize the bioelectrocatalytic functions of the system.
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