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Biocompatible Magnetite Nanoparticles Trapped at the Air/Water Interface
Author(s) -
Stefaniu Cristina,
Chanana Munish,
Wang Dayang,
Novikov Dmitri V.,
Brezesinski Gerald,
Möhwald Helmuth
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000783
Subject(s) - biocompatible material , magnetite , nanoparticle , magnetite nanoparticles , interface (matter) , materials science , nanotechnology , chemical engineering , chemistry , magnetic nanoparticles , metallurgy , composite material , biomedical engineering , engineering , contact angle , sessile drop technique
Interfacial captured nanoparticles: Energetically and kinetically stable Fe 3 O 4 @MEO 2 MA 90 ‐co‐OEGMA 10 nanoparticle (NP) layers (see picture) are formed at the air/water interface. Due to the unique hydrophilic–hydrophobic properties of the copolymer, the surface‐active NPs are readily adsorbed at that interface, where they do not interchange with the bulk material but remain trapped. Above the critical surface coverage the NPs are dispersed in the aqueous subphase without precipitation.