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Catalytic Self‐Propulsion of Supramolecular Capsules Powered by Polyoxometalate Cargos
Author(s) -
del Mercato Loretta L.,
Carraro Mauro,
Zizzari Alessandra,
Bianco Monica,
Miglietta Ruggero,
Arima Valentina,
Viola Ilenia,
Nobile Concetta,
Sorarù Antonio,
Vilona Debora,
Gigli Giuseppe,
Bonchio Marcella,
Rinaldi Rosaria
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201403171
Subject(s) - polyoxometalate , ruthenium , propulsion , catalysis , polyelectrolyte , supramolecular chemistry , microfluidics , nanotechnology , materials science , layer (electronics) , chemistry , chemical engineering , molecule , polymer , engineering , organic chemistry , composite material , aerospace engineering
Multicompartment, spherical microcontainers were engineered through a layer‐by‐layer polyelectrolyte deposition around a fluorescent core while integrating a ruthenium polyoxometalate (Ru 4 POM), as molecular motor, vis‐à‐vis its oxygenic, propeller effect, fuelled upon H 2 O 2 decomposition. The resulting chemomechanical system, with average speeds of up to 25 μm s −1 , is amenable for integration into a microfluidic set‐up for mixing and displacement of liquids, whereby the propulsion force and the resulting velocity regime can be modulated upon H 2 O 2 ‐controlled addition.