Premium
Hydrodynamic Effects in Soft‐matter Self‐assembly: The Case of J‐Aggregates of Amphiphilic Porphyrins
Author(s) -
Ribo Josep M.,
ElHachemi Zoubir,
Arteaga Oriol,
Canillas Adolf,
Crusats Joaquim
Publication year - 2017
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.201600133
Subject(s) - amphiphile , soft matter , elasticity (physics) , covalent bond , chemical physics , self assembly , chemistry , polarimetry , nanoparticle , materials science , chemical engineering , polymer , nanotechnology , copolymer , optics , organic chemistry , composite material , colloid , physics , engineering , scattering
Chiral J‐aggregates of achiral amphiphilic porphyrins (4‐sulfonatophenyl and aryl meso ‐substituted porphyrins) show several effects under the hydrodynamic forces of common stirring. These effects can be classified as pure mechanic (e. g. elasticity, plasticity and breaking of the self‐assembly non‐covalent bonding) and chemically selective as detected in the formation/growth of the nanoparticles. Diastereoselective, enantioselective and, depending on the sign of chiral shear forces, even enantiospecific selections have been described. Some types of these effects have been reported in other type of J‐aggregates. Reversible and irreversible structural effects have been studied by atomic force imaging. The determination of the optical polarization properties (linear and circular) of their solutions is best done using Mueller matrix polarimetry methods.