Molecules That Make Decisions


  • The author thanks V. Balzani, A.P. de Silva, and M. Venturi for useful discussions. Financial support from Università di Bologna (Progetto Strategico CompReNDe) is gratefully acknowledged.


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It's logical! Molecular logic gates and circuits process chemical or physical inputs according to programmed Boolean logic functions. The integration of functions within individual molecules allows complex operations, as demonstrated by a recently reported molecular keypad access device (see picture).