Formation of Colloidal Molecules Induced by Alternating-Current
Electric Fields
Fuduo Ma
David T. Wu
Ning Wu
10.1021/ja403172p.s002
https://acs.figshare.com/articles/media/Formation_of_Colloidal_Molecules_Induced_by_Alternating_Current_Electric_Fields/2410975
We
report a versatile method for building colloidal molecules from
particles that are isotropic in geometry and interfacial properties.
When an external alternating-current electric field is applied, the
particles experience anisotropic interactions that lead to the formation
of colloidal oligomers via different assembly pathways that strikingly
resemble chemical reactions of real molecules. We propose a mechanism
for the formation of colloidal molecules that agrees well with the
experiments. Our method can be used to build colloidal analogues of
molecules using spherical particles with isotropic properties, which
offers considerable advantages over existing methods. Moreover, our
approach does not rely on material-specific properties and thus could
have potential applications to a broad range of particles with different
chemical properties.
2013-05-29 00:00:00
chemical properties
Colloidal Molecules Induced
method
particles experience anisotropic interactions
assembly pathways
molecule
formation
chemical reactions