Locally pH controlled and directed growth of supramolecular gel microshapes using electrocatalytic nanoparticles
Vasudevan Lakshminarayanan (Student TU Delft)
Lukasz Poltorak (TU Delft - OLD ChemE/Organic Materials and Interfaces, Uniwersytet Lodzki)
Duco Bosma (TU Delft - ChemE/O&O groep)
Ernst J.R. Sudhölter (TU Delft - OLD ChemE/Organic Materials and Interfaces)
Jan H. Van Esch (TU Delft - ChemE/Advanced Soft Matter)
Eduardo Mendes (TU Delft - ChemE/Advanced Soft Matter)
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Abstract
Controlled localization of platinum nanoparticles (Pt NPs) at a solid support assisted by a polarized liquid-liquid interface is reported. Electrocatalytic water oxidation resulted in local pH modulation followed by the directed self-assembly of a dibenzoyl-l-cystine hydrogelator forming a structured hydrogel retaining the shape of the Pt NP deposit.