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Multicolour Fluorescent Memory Based on the Interaction of Hydroxy Terphenyls with Fluoride Anions
Author(s) -
Akamatsu Masaaki,
Mori Taizo,
Okamoto Ken,
Sakai Hideki,
Abe Masahiko,
Hill Jonathan P.,
Ariga Katsuhiko
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201404089
Subject(s) - reagent , miniaturization , fluorescence , phenol , encryption , chemistry , computer science , binary number , key (lock) , combinatorial chemistry , nanotechnology , materials science , organic chemistry , physics , computer security , quantum mechanics , arithmetic , mathematics , operating system
Memory operations based on variation of a molecule’s properties are important because they may lead to device miniaturization to the molecular scale or increasingly complex information processing protocols beyond the binary level. Molecular memory also introduces possibilities related to information‐storage security where chemical information (or reagents) might be used as an encryption key, in this case, acidic/basic reagents. Chemical memory that possesses both volatile and non‐volatile functionality requires reversible conversion between at least two chemically different stable or quasi‐stable states. Here we have developed the phenol–phenoxide equilibrium of phenol fluorophores as a data storage element, which can be used to write or modulate data using chemical reagents. The properties of this system allow data to be stored and erased either in non‐volatile or volatile modes. We also demonstrate non‐binary switching of states made possible by preparation of a composite containing the molecular memory elements.