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Utilizing the Krafft Phenomenon to Generate Ideal Micelle‐Free Surfactant‐Stabilized Nanoparticle Suspensions
Author(s) -
Dölle Sarah,
Lechner BobDan,
Park Ji Hyun,
Schymura Stefan,
Lagerwall Jan P. F.,
Scalia Giusy
Publication year - 2012
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.201106793
Subject(s) - krafft temperature , pulmonary surfactant , exfoliation joint , micelle , nanoparticle , carbon nanotube , materials science , chemistry , chemical engineering , critical micelle concentration , nanotechnology , organic chemistry , graphene , engineering , aqueous solution
Cool tubes : Micelle formation is inhibited at temperatures below the Krafft temperature T K , therefore the dispersion of carbon nanotubes (CNTs) below T K results in better exfoliation, higher particle loading, and a dramatically reduced final amount of surfactant (see AFM images). The concept is not restricted to CNTs but is also readily applicable to other nanoparticle types.