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Cover Feature: Redox‐Induced Switching of the Viscoelasticity of DNA Layers Observed by using Electrochemical Quartz Crystal Microbalance on the Millisecond Timescale (ChemElectroChem 3/2018)
Author(s) -
Peter Jörg,
Galagedera Sarasi K.K.,
Flechsig GerdUwe
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201701351
Subject(s) - quartz crystal microbalance , cobalt , cover (algebra) , electrochemistry , redox , octahedron , materials science , hydrogen bond , crystal (programming language) , viscoelasticity , millisecond , quartz , crystallography , chemical engineering , chemistry , crystal structure , electrode , molecule , adsorption , computer science , physics , composite material , organic chemistry , mechanical engineering , astronomy , engineering , programming language , metallurgy
The Cover Feature illustrates how the octahedral hexammine cobalt complexes (blue and green) interconnect the surface‐confined single‐stranded DNA via hydrogen bonds, and how this network is influenced by the electrochemical potential jump, leading to a change in the oxidation state of cobalt (green to yellow) and a rearrangement of the interactions. This causes a rapid change in viscoelasticity of the DNA film and, thus, the quartz crystal resonance frequency. More information can be found in the Communication by J. Peter et al. on page 418 in Issue 3, 2018 (DOI: 10.1002/celc.201701253).