Amino functionalized thin films prepared from Gabriel synthesis applied on electrografted diazonium salts

Hauquier, Fanny; Debou, Nabila; Jousselme, Bruno

doi:10.1016/j.jelechem.2012.05.016

Cited by 10 publications

(24 citation statements)

References 42 publications

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“…Both modes of multilayer formation can contribute to the build‐up of an amorphous, organic, insulating layer on the surface of the electrode . Methodologies to prevent or minimalize multilayer formation have been reported, such as the use and subsequent cleavage of bulky protecting groups, sterically hindering the 3,5‐positions of the aryl diazonium salt, and addition of the radical scavenger 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) to quench excess aryl radicals …”

Section: Common Electrode Functionalization Strategies To Promote Elementioning

confidence: 99%

“…To avoid such problems the covalent attachment of proteins to electrode surfaces is desirable, particularly in biotechnological device development. Such a covalent coupling approach often requires a complementary surface functionalization strategy, so either thiol self‐assembly or diazonium modification is often used to introduce surface groups that will react with protein moieties …”

Section: Covalent Coupling Of Electrodes To Native Proteinsmentioning

confidence: 99%

“…[144,[151][152][153] Both modes of multilayer formation can contribute to the build-up of an amorphous, organic, insulating layer on the surface of the electrode. [144,[151][152][153] Methodologies to prevent or minimalize multilayer formation have been reported, such as the use and subsequent cleavage of bulky protecting groups, [154] sterically hindering the 3,5-positionso f the aryl diazonium salt, [155] and addition of the radical scavenger 2,2-diphenyl-1-picrylhydrazyl (DPPH) to quenche xcess aryl radicals. [152,153] In the contexto fb ioelectrochemistry,d iazonium electrode modifications can be used to induce protein adsorption through non-covalent interactions in as imilar manner to that achieved using unmodified PGE or SAMs on gold.…”

Section: Aryl Diazonium Salt Reductionmentioning

confidence: 99%

“…Such ac ovalent coupling approach often requires ac omplementarys urface functionalization strategy,s oe ither thiol self-assembly or diazonium modification is often used to introduce surfaceg roups that will react with protein moieties. [154][155][156][161][162][163][164]…”

Section: Covalent Coupling Of Electrodeston Ative Proteinsmentioning

confidence: 99%

“…The most common covalentp rotein immobilization strategy is to mimic nature and generate peptide bonds,e ither through coupling carboxylic-acid-functionalized surfaces to protein-sur-face lysine residues, [68,[154][155][156][165][166][167][168][169][170] or crosslinking glutamate and aspartate residues that adorn protein surfaces to amine functionalized surfaces. [157,[170][171][172][173] The use of 1-ethyl-3-(3dimethylaminopropyl)carbodiimidea nd N-Hydroxysuccinimide (EDC/NHS) coupling is one way to form these peptideb onds (Figure 11).…”

Section: Peptide Bond Formationmentioning

confidence: 99%

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Methodologies for “Wiring” Redox Proteins/Enzymes to Electrode Surfaces

Yates

Fascione

Parkin

2018

Chemistry A European J

109

116

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The immobilization of redox proteins or enzymes onto conductive surfaces has application in the analysis of biological processes, the fabrication of biosensors, and in the development of green technologies and biochemical synthetic approaches. This review evaluates the methods through which redox proteins can be attached to electrode surfaces in a “wired” configuration, that is, one that facilitates direct electron transfer. The feasibility of simple electroactive adsorption onto a range of electrode surfaces is illustrated, with a highlight on the recent advances that have been achieved in biotechnological device construction using carbon materials and metal oxides. The covalent crosslinking strategies commonly used for the modification and biofunctionalization of electrode surfaces are also evaluated. Recent innovations in harnessing chemical biology methods for electrically wiring redox biology to surfaces are emphasized.

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Section: Common Electrode Functionalization Strategies To Promote Elementioning

confidence: 99%

Section: Covalent Coupling Of Electrodes To Native Proteinsmentioning

confidence: 99%

Section: Aryl Diazonium Salt Reductionmentioning

confidence: 99%

Section: Covalent Coupling Of Electrodeston Ative Proteinsmentioning

confidence: 99%

Section: Peptide Bond Formationmentioning

confidence: 99%

See 3 more Smart Citations

Methodologies for “Wiring” Redox Proteins/Enzymes to Electrode Surfaces

Yates

Fascione

Parkin

2018

Chemistry A European J

109

116

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Role of the Supporting Electrolyte Ions and Additives on the Electron Transport Properties of Electrografted Films Bearing Ferrocenyl Moieties

et al. 2021

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The electrochemical oxidation of 6‐ferrocenylheptanoate was used to modify the surface of glassy carbon electrodes with thin films bearing ferrocene molecules. These films grow layer by layer and behave as surface redox catalyst during the electrografting. The electrografted films have a structure with pinholes or channels, whose existence was deduced from the redox behavior of the film in acetonitrile solution containing different supporting electrolytes and organic additives. The electron transport through this film requires the presence of the electrolyte anions in the film channels. However, the voltametric feature of the grafted films is sensitive to the electrolyte cation size. The supporting electrolyte anions inside the film channels stabilize the ferrocenium species during the film oxidation. However, the presence of the cations is required to keep the inner charge balance. The inclusion of both anions and cations inside the grafted film determines the surface coverage obtained from the voltammetric experiments.

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