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Nanoparticle Oscillations and Fronts
Author(s) -
Lagzi István,
Kowalczyk Bartlomiej,
Wang Dawei,
Grzybowski Bartosz A.
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201004231
Subject(s) - nanoparticle , deprotonation , dispersion (optics) , protonation , particle (ecology) , nanotechnology , chemical physics , computer science , chemistry , materials science , physics , optics , biology , organic chemistry , ion , ecology
Rhythmic nanoparticles : Chemical oscillations can be coupled to the dynamic self‐assembly of nanoparticles. Periodic pH changes translate into protonation and deprotonation of the ligands that stabilize the nanoparticles, thus altering repulsive and attractive interparticle forces. In a continuous stirred‐tank reactor, rhythmic aggregation and dispersion is observed; in spatially distributed media, propagation of particle aggregation fronts is seen.