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Writing Self‐Erasing Images using Metastable Nanoparticle “Inks”
Author(s) -
Klajn Rafal,
Wesson Paul J.,
Bishop Kyle J. M.,
Grzybowski Bartosz A.
Publication year - 2009
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.200901119
Subject(s) - metastability , erasure , inkwell , nanoparticle , nanotechnology , computer science , content (measure theory) , information retrieval , materials science , chemistry , organic chemistry , mathematics , speech recognition , programming language , mathematical analysis
Mission Impossible : Metal nanoparticles (NPs) coated with photoresponsive ligands are used as “inks” for self‐erasing “paper” whereby light‐induced self‐assembly of the NPs is transduced into local color changes (see picture). Depending on the degree of self‐assembly, multicolor images can be written using only one type of NP ink. Duration of image erasure is regulated by the surface concentration of photoactive groups and can range from seconds to days.