Molecular 2:1 Digital Multiplexer (pages 958–961)
Joakim Andréasson, Stephen D. Straight, Subhajit Bandyopadhyay, Reginald H. Mitchell, Thomas A. Moore, Ana L. Moore and Devens Gust
Version of Record online: 20 DEC 2006 | DOI: 10.1002/anie.200603856
Two into one: A porphyrin linked to two photochromic moieties performs as a 2:1 digital multiplexer (MUX). It takes heat and red light as the two inputs (in 1 and in 2), and a third switchable input (green light, sel) selects whether the output (porphyrin fluorescence) reports the state of in 1 or in 2. Each photochromic moiety may be independently photoisomerized to isomers that quench the porphyrin fluorescence.