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Electrochemically Driven Release of Picomole Amounts of Calcium Ions with Temporal and Spatial Resolution
Author(s) -
Amatore Christian,
Genovese Damiano,
Maisonhaute Emmanuel,
Raouafi Noureddine,
Schöllhorn Bernd
Publication year - 2008
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.200705274
Subject(s) - monolayer , redox , millisecond , crown ether , ion , chemistry , electrode , combinatorial chemistry , computer science , chemical engineering , nanotechnology , materials science , inorganic chemistry , organic chemistry , physics , engineering , astronomy
Controlled delivery : Redox commutation of a paraphenylenediamine and aza‐crown ether assembly anchored as a self‐assembled monolayer to an electrode surface allows the time and spatially controlled release of picomole amounts of calcium ions. The release occurs on a sub‐millisecond time scale, and is irreversible provided that the two‐electron‐oxidized redox center is not returned electrochemically to its neutral initial state (see scheme).