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Self‐Assembly of Uniform Spherical Aggregates of Magnetic Nanoparticles through π–π Interactions
Author(s) -
Jin Jian,
Iyoda Tomokazu,
Cao Changsheng,
Song Yanlin,
Jiang Lei,
Li Tie Jin,
Zhu Dao Ben
Publication year - 2001
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 - 10.1002/1521-3773(20010601)40:11<2135::aid-anie2135>3.0.co;2-o
Subject(s) - magnetic nanoparticles , nanoparticle , materials science , nanotechnology , self assembly , chemical engineering , chemical physics , biophysics , chemistry , biology , engineering
Nanoparticles of Fe 3 O 4 coated with 2‐carboxyterthiophene (TTP‐COOH) self‐assemble through π–π interactions to form uniform transparent microspheres (see schematic representation). The interaction between individual particles is relatively weak and the spherical aggregates can be destroyed by sonication to leave the monodispersed nanoparticles.