title: Molecular logic gates and luminescent sensors based on photoinduced electron transfer.
abstract: The competition between Photoinduced electron transfer (PET) and other de-excitation pathways such as fluorescence and phosphorescence can be controlled within designed molecular structures. Depending on the particular design, the resulting optical output is thus a function of various inputs such as ion concentration and excitation light dose. Once digitized into binary code, these input-output patterns can be interpreted according to Boolean logic. The single-input logic types of YES and NOT cover simple sensors and the double- (or higher-) input logic types represent other gates such as AND and OR. The logic-based arithmetic processors such as half-adders and half-subtractors are also featured. Naturally, a principal application of the more complex gates is in multi-sensing contexts.
authors.affiliation: School of Chemistry and Chemical Engineering, Queen's University, Belfast, BT9 5AG, Northern Ireland. a.desilva@qub.ac.uk
authors.forename: A Prasanna
authors.initials: AP
authors.lastname: de Silva
authors.forename: Seiichi
authors.initials: S
authors.lastname: Uchiyama
mesh_terms: D004579:Electron Transport; D008163:Luminescent Measurements / Q000379:methods*