This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Electrochemically Growing Hydrogels to Control Stiffness
Abstract: At high pH many low molecular weight gelators (LMWG) are dispersed in solution. When a trigger is applied to lower the pH the gelator molecules self-assemble into one dimensional fibres ~10 nm in length. These fibres then entangle to immobilise water to form a gel. We grow gels electrochemically by oxidising hydroquinone on a glassy carbon electrode. The resulting oxidation sets up a pH gradient from low at the electrode surface to high in the bulk solution. The area of low pH triggers the self-assembly of LMWG at the electrode surface. Unique to this method the localised gelation allows for gels to be formed on patterned surfaces to any size or thickness required. Furthermore, we can control the stiffness of the gels by altering the electrochemical properties applied. We require SANS to help us identify fibre length and thickness and how this relates to the applied current.
Public release date: 05 October 2022
Principal Investigator: Professor Dave Adams
Experimenter: Miss Ana Maria Fuentes Caparrós
Local Contact: Dr Leide Cavalcanti
Experimenter: Miss Emily Cross
DOI: 10.5286/ISIS.E.RB1920493-1
Parent DOI: 10.5286/ISIS.E.RB1920493
ISIS Experiment Number: RB1920493
Part Number: 1
Date of Experiment: 26 September 2019
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
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[author], [date], [title], [publisher],
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Professor Dave Adams et al; (2019): Electrochemically Growing Hydrogels to Control Stiffness , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920493-1
Data is released under the CC-BY-4.0 license.