Electrofabrication of large volume di- and tripeptide hydrogels via hydroquinone oxidation

Soft Matter ◽  
2022 ◽  
Author(s):  
Courtenay Patterson ◽  
Bart Dietrich ◽  
Claire Wilson ◽  
Andrew R Mount ◽  
Dave Adams

The fabrication of protected peptide-based hydrogels on electrode surfaces can be achieved by employing the electrochemical oxidation of hydroquinone to benzoquinone, liberating protons at the electrode-solution interface. The localised reduction...

1989 ◽  
Vol 42 (9) ◽  
pp. 1527 ◽  
Author(s):  
TH Randle ◽  
AT Kuhn

Lead dioxide is a strong oxidizer in sulfuric acid, consequently electrochemical oxidation of solution species at a lead dioxide anode may occur by a two-step, C-E process (chemical oxidation of solution species by PbO2 followed by electrochemical regeneration of the reduced lead dioxide surface). The maximum rate of each step has been determined in sulfuric acid for specified lead dioxide surfaces and compared with the rates observed for the electrochemical oxidation of cerium(III) and manganese(II) on the same electrode surfaces. While the rate of electrochemical oxidation of a partially reduced PbO2 surface may be sufficient to support the observed rates of CeIII and MnII oxidation at the lead dioxide anode, the rate of chemical reaction between PbO2 and the reducing species is not. Hence it is concluded that the lead dioxide electrode functions as a simple, 'inert' electron-transfer agent during the electrochemical oxidation of CellI and MnII in sulfuric acid. In general, it will most probably be the rate of the chemical step which determines the feasibility or otherwise of the C-E mechanism.


2017 ◽  
Vol 5 (9) ◽  
pp. 4550-4559 ◽  
Author(s):  
Benjamin M. Gray ◽  
Andrew L. Hector ◽  
Marek Jura ◽  
John R. Owen ◽  
Joshua Whittam

The effects of surface oxidation on the capacitance of titanium nitride electrode surfaces are examined. Electrochemical oxidation was effective in increasing capacitance.


2020 ◽  
Vol 24 (11-12) ◽  
pp. 3245-3256 ◽  
Author(s):  
Izabelle Cristina da Costa Soares ◽  
Ámison Rick Lopes da Silva ◽  
Elaine Cristina Martins de Moura Santos ◽  
Elisama Vieira dos Santos ◽  
Djalma Ribeiro da Silva ◽  
...  

2017 ◽  
Vol 8 (3) ◽  
pp. 1841-1853 ◽  
Author(s):  
Jon Ustarroz ◽  
Minkyung Kang ◽  
Erin Bullions ◽  
Patrick R. Unwin

High bandwidth-low noise measurements of the electrochemical oxidation of individual silver nanoparticles (NPs) impacting on electrodes reveals the process to typically occur in a series of ‘bites’ (partial NP dissolution) rather than in a single shot, with the resulting current–time traces revealing considerable information on NP activity and transport near electrodes.


Author(s):  
Brigid R. Heywood ◽  
S. Champ

Recent work on the crystallisation of inorganic crystals under compressed monomolecular surfactant films has shown that two dimensional templates can be used to promote the oriented nucleation of solids. When a suitable long alkyl chain surfactant is cast on the crystallisation media a monodispersied population of crystals forms exclusively at the monolayer/solution interface. Each crystal is aligned with a specific crystallographic axis perpendicular to the plane of the monolayer suggesting that nucleation is facilitated by recognition events between the nascent inorganic solid and the organic template.For example, monolayers of the long alkyl chain surfactant, stearic acid will promote the oriented nucleation of the calcium carbonate polymorph, calcite, on the (100) face, whereas compressed monolayers of n-eicosyl sulphate will induce calcite nucleation on the (001) face, (Figure 1 & 2). An extensive program of research has confirmed the general principle that molecular recognition events at the interface (including electrostatic interactions, geometric homology, stereochemical complementarity) can be used to promote the crystal engineering process.


1999 ◽  
Vol 9 (1) ◽  
pp. 5-6
Author(s):  
Carrie Bain ◽  
Nan Bernstein Ratner

Due to the large volume of fluency-related publications since the last column, we have chosen to highlight those articles of highest potential clinical relevance.


2001 ◽  
Vol 120 (5) ◽  
pp. A482-A482
Author(s):  
R MONDRAGONSANCHEZ ◽  
A GARDUOLOPEZ ◽  
H MURRIETA ◽  
M FRIASMENDIVIL ◽  
R ESPEJO ◽  
...  

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