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Nanoparticle Supracrystals and Layered Supracrystals as Chemical Amplifiers
Author(s) -
Kowalczyk Bartlomiej,
Walker David A.,
Soh Siowling,
Grzybowski Bartosz A.
Publication year - 2010
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.201002295
Subject(s) - analyte , nanoparticle , colored , nanotechnology , chemistry , materials science , computer science , chromatography , composite material
Seeing is believing : Nanoparticle crystals and core–shell crystals detect and amplify the presence of chemical and enzymatic analytes. These crystals are made insoluble in water by cross‐linking their surface with dithiols incorporating analyte‐specific groups. Upon addition of an analyte, these groups are cut, and the “punctured” crystals liberate millions of individual, brightly colored NPs (see picture).