Effect of glassy carbon pretreatment on background double-layer capacitance and adsorption of neutral organic molecules

Hance, Glen W.; Kuwana, Theodore

doi:10.1021/ac00128a027

Cited by 44 publications

(41 citation statements)

References 15 publications

(18 reference statements)

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“…The electrochemistry of higher-order CNMs largely depends on the electronic band structure—metallic, semiconductor, or insulator—of the CNM. The amorphous/glassy nanocarbons, 317, 318 CNTs, 319–323 and Bucky fullerenes 324 have been characterized in detail. In open-circuit aqueous systems such as biological media/serum, the O 2 /H 2 O redox couple dominates (e.g.…”

Section: Higher Order Carbon Nanomaterialsmentioning

confidence: 99%

Redox-active nanomaterials for nanomedicine applications

et al. 2017

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Nanomedicine utilizes the remarkable properties of nanomaterials for the diagnosis, treatment, and prevention of disease. Many of these nanomaterials have been shown to have robust antioxidative properties, potentially functioning as strong scavengers of reactive oxygen species. Conversely, several nanomaterials have also been shown to promote the generation of reactive oxygen species, which may precipitate the onset of oxidative stress, a state that is thought to contribute to the development of a variety of adverse conditions. As such, the impacts of NMs on biological entities are often associated with and influenced by their specific redox properties. In this review, we overview several classes of nanomaterials that have been or projected to be used across a wide range of biomedical applications, with discussion focusing on their unique redox properties. Amongst the nanomaterials examined include iron, cerium, and titanium metal oxide nanoparticles, gold, silver, and selenium nanoparticles, and various nanoscale carbon allotropes such as graphene, carbon nanotubes, fullerenes, and their derivatives/variations. Principal topics of discussion include the chemical mechanisms by which the nanomaterials directly interact with biological entities and the biological cascades that are thus indirectly impacted. Selected case studies highlighting the redox properties of nanomaterials and how they affect biological responses are used to exemplify the biologically-relevant redox mechanisms for each of the described nanomaterials.

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Section: Higher Order Carbon Nanomaterialsmentioning

confidence: 99%

Redox-active nanomaterials for nanomedicine applications

et al. 2017

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“…As the extent of interaction of analyte with an electrode surface condition is a key underlying feature influencing the stability of I p , the influence of diffusive and adsorptive controlled mass transport kinetics was assessed. Triol has been shown to exhibit either diffusive or adsorptive mass transport kinetics as a factor of concentration in aqueous media, where at 0.80 mM it is primarily diffusion controlled and at 0.05 mM it is primarily adsorption controlled 69.…”

Section: Resultsmentioning

confidence: 99%

Towards Normalising Variability in Current Responses at Glassy Carbon Electrodes Using Double Layer Capacitance; a Case Study of Citrinin

Niland¹,

Fogel²,

Flanagan³

et al. 2012

Electroanalysis

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Heterogeneity in surface condition is a widely reported factor of carbonaceous electrodes that leads to irreproducibility in faradaic current response(s) (Ip). As Ip and double layer capacitances (Cdl) are similarly influenced by surface associated parameters, we report on a method aimed at exploiting that interaction to normalise Ip variability of adsorptive analytes across inconsistent electrode surface preparations. A linear correlation was observed between Cdl and Ip to citrinin and 1,2,4‐benzenetriol. By rendering Ip a factor of Cdl, the coefficient of variation of Ip was reduced to a third of original responses on assessed surfaces permitting determination of analyte solution concentration.

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“…As auxiliary electrode a platinum coil was used, in a separated compartment from the working electrode. To avoid the gradual deactivation of GCE during its use, the procedure described by Kuwana et al [29,30] was followed to activate it again. The GCE was rinsed with abundant deionized water and then with anhydrous acetonitrile.…”

Section: Electrochemical Setupmentioning

confidence: 99%

A New Synthetic Thio-Chalcone Intended as a Ligand for Polymetallic Coordination Compounds: Structural, Electrochemical and Theoretical Study

Brovelli¹,

Baggio²,

Álvarez

et al. 2021

J. Chil. Chem. Soc.

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The new chalcone, 1-(PYRIDIN-2-YL)-3-(THIOPHEN-2-YL)PROPENONE, has been synthesized and its crystal and molecular structure determined. An electrochemical characterization of the molecule disclosed some reversible and irreversible processes in its cathodic/anodic reactions. A density functional study was carried out in order to calculate the frontier molecular orbitals and the diffusion coefficient, which showed very good agreement with the experimental data.

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Effect of glassy carbon pretreatment on background double-layer capacitance and adsorption of neutral organic molecules

Cited by 44 publications

References 15 publications

Redox-active nanomaterials for nanomedicine applications

Redox-active nanomaterials for nanomedicine applications

Towards Normalising Variability in Current Responses at Glassy Carbon Electrodes Using Double Layer Capacitance; a Case Study of Citrinin

A New Synthetic Thio-Chalcone Intended as a Ligand for Polymetallic Coordination Compounds: Structural, Electrochemical and Theoretical Study

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