Search Results - "Downard, Alison J"

Electrografting via Diazonium Chemistry: The Key Role of the Aryl Substituent in the Layer Growth Mechanism by Menanteau, Thibaud, Dias, Marylène, Levillain, Eric, Downard, Alison J, Breton, Tony

“…A series of diazonium salts bearing different para substituents was used to functionalize glassy carbon (GC) and pyrolyzed photoresist film (PPF) under…”
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Electrochemical and Atomic Force Microscopy Study of Carbon Surface Modification via Diazonium Reduction in Aqueous and Acetonitrile Solutions by Brooksby, Paula A, Downard, Alison J

“…Electrochemical reduction of the diazonium salts of 4-nitrobenzene and 4-nitroazobenzene-4‘- has been investigated in aqueous acid and acetonitrile media at…”
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Synchrotron X‑ray Photoelectron Spectroscopy Study of Electronic Changes at the ZnO Surface Following Aryldiazonium Ion Grafting: A Metal-to-Insulator Transition by McNeill, Alexandra R, Bell, Kalib J, Hyndman, Adam R, Gazoni, Rodrigo M, Reeves, Roger J, Downard, Alison J, Allen, Martin W

“…ZnO is a member of a small class of semiconductors that includes In2O3, SnO2, CdO, and InN, whose surfaces are highly unusual because their electronic bands…”
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Multifunctional and Stable Monolayers on Carbon: A Simple and Reliable Method for Backfilling Sparse Layers Grafted from Protected Aryldiazonium Ions by Lee, Lita, Gunby, Nathaniel R., Crittenden, Deborah L., Downard, Alison J.

“…A new strategy for preparation of robust multifunctional low nanometer thickness monolayers on carbon substrates is presented. Beginning with protected…”
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Tuning the Band Bending and Controlling the Surface Reactivity at Polar and Nonpolar Surfaces of ZnO through Phosphonic Acid Binding by McNeill, Alexandra R, Hyndman, Adam R, Reeves, Roger J, Downard, Alison J, Allen, Martin W

“…ZnO is a prime candidate for future use in transparent electronics; however, development of practical materials requires attention to factors including control…”
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An Electrochemical and XPS Study of Reduction of Nitrophenyl Films Covalently Grafted to Planar Carbon Surfaces by Yu, Samuel S. C, Tan, Emelyn S. Q, Jane, Reuben T, Downard, Alison J

“…Nitrophenyl (NP) films were grafted to glassy carbon and pyrolyzed photoresist films by electroreduction of the corresponding diazonium salt. The as-prepared,…”
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Mixed Monolayer Organic Films via Sequential Electrografting from Aryldiazonium Ion and Arylhydrazine Solutions by Lee, Lita, Brooksby, Paula A, Leroux, Yann R, Hapiot, Philippe, Downard, Alison J

“…Sequential electrografting at glassy carbon from aryldiazonium salt solutions, or an aryldiazonium salt followed by an arylhydrazine, leads to the formation of…”
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Design of Robust Binary Film onto Carbon Surface Using Diazonium Electrochemistry by Leroux, Yann R, Hui, Fei, Noël, Jean-Marc, Roux, Clément, Downard, Alison J, Hapiot, Philippe

“…The electroreduction of functionalized aryldiazonium salts combined with a protection–deprotection method was evaluated for the fabrication of organized mixed…”
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New Perspectives on Iron Uptake in Eukaryotes by Sherman, Harry G, Jovanovic, Carolyn, Stolnik, Snow, Baronian, Kim, Downard, Alison J, Rawson, Frankie J

“…All eukaryotic organisms require iron to function. Malfunctions within iron homeostasis have a range of physiological consequences, and can lead to the…”
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Scanning Tunneling and Atomic Force Microscopy Evidence for Covalent and Noncovalent Interactions between Aryl Films and Highly Ordered Pyrolytic Graphite by Ma, Haifeng, Lee, Lita, Brooksby, Paula A, Brown, Simon A, Fraser, Sara J, Gordon, Keith C, Leroux, Yann R, Hapiot, Philippe, Downard, Alison J

“…Electroreduction of 4-nitrobenzenediazonium ions at highly ordered pyrolytic graphite (HOPG) gives a nitrophenyl film that is shown by noncontact atomic force…”
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Electrochemical stability of citrate-capped gold nanoparticles electrostatically assembled on amine-modified glassy carbon by Cruickshank, Amy C., Downard, Alison J.

“…The stability of citrate-capped gold nanoparticles assembled on covalently attached ethylenediamine films on glassy carbon was probed using cyclic voltammetry…”
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Surface Patterning Using Two-Phase Laminar Flow and In Situ Formation of Aryldiazonium Salts by Gross, Andrew J., Nock, Volker, Polson, Matthew I. J., Alkaisi, Maan M., Downard, Alison J.

“…In the reaction zone: Reaction of an aryltriazene with acid generates the corresponding aryldiazonium ion. When this reaction takes place in the mixing zone,…”
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Microcontact Printing Using the Spontaneous Reduction of Aryldiazonium Salts by Garrett, David J, Lehr, Joshua, Miskelly, Gordon M, Downard, Alison J

“…Patterning of aryl derivatives on graphitic carbon surfaces by printing with poly(dimethylsiloxane) stamps is described. The printing ink contained…”
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A Simple Approach to Patterned Protein Immobilization on Silicon via Electrografting from Diazonium Salt Solutions by Flavel, Benjamin S, Gross, Andrew J, Garrett, David J, Nock, Volker, Downard, Alison J

“…A highly versatile method utilizing diazonium salt chemistry has been developed for the fabrication of protein arrays. Conventional ultraviolet mask…”
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Microscale Patterning of Organic Films on Carbon Surfaces Using Electrochemistry and Soft Lithography by Downard, Alison J, Garrett, David J, Tan, Emelyn S. Q

“…We have demonstrated three simple strategies employing poly(dimethylsiloxane) (PDMS) molds for patterning carbon surfaces with two different modifiers in an 18…”
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Reduction of Nitrophenyl Films in Aqueous Solutions: How Many Electrons? by Brooksby, Paula A., Shields, James D., Farquhar, Anna K., Downard, Alison J.

“…The surface concentration of nitrophenyl (NP) films is commonly calculated from the charge associated with its redox reactions in aqueous solution. Reduction…”
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Are redox probes a useful indicator of film stability? An electrochemical, AFM and XPS study of electrografted amine films on carbon by Cruickshank, Amy C., Tan, Emelyn S.Q., Brooksby, Paula A., Downard, Alison J.

“…The electrochemical response of solution-based redox probes is commonly used to detect and monitor the formation and stability of films grafted to conducting…”
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Potential-Dependence of Self-Limited Films Formed by Reduction of Aryldiazonium Salts at Glassy Carbon Electrodes by Downard, Alison J

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Two-Component Mixed and Patterned Films on Carbon Surfaces through the Photografting of Arylazides by Gross, Andrew J, Yu, Samuel S. C, Downard, Alison J

“…Organic films have been grafted to glassy carbon surfaces by the photolysis of arylazides. Atomic force microscopy and electrochemical measurements reveal that…”
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Single fibre electrode measurements – A versatile strategy for assessing the non-uniform kinetics at carbon felt electrodes by Landon-Lane, Leatham, Downard, Alison J., Marshall, Aaron T.

“…Redox flow batteries (RFBs) are a promising technology for the storage of intermittent renewable energy. Graphite and carbon felts electrodes are commonly used…”
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