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Polyethyleneimine Aggregates Regulated by Metal Cations Acting as Biomimetic Organic Reactors for Silica Architectures
Author(s) -
Zhu PeiXin,
Fukazawa Norimasa,
Jin RenHua
Publication year - 2007
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200600363
Subject(s) - metal , chemical engineering , divalent metal , divalent , biomineralization , materials science , chemistry , inorganic chemistry , organic chemistry , engineering
Imitating nature : Different morphologies of linear polyethyleneimine (LPEI) aggregates regulated by monovalent, divalent, and trivalent metal cations act as biomimetic organic reactors for directing the formation of complicated silica structures. LPEI associated with Cu 2+ resulted in turbinelike silica; when associated with Al 3+ it produced an urchinlike structure (see SEM image; scale bar=20 μm).