bistable molecules that can be switched by an external stimulus are absolutely not new. See for example how the eye senses light: http://scholar.google.co.uk/sc

bistable molecules that can be switched by an external stimulus are absolutely not new. See for example how the eye senses light: http://scholar.google.co.uk/scholar?q=retinal+photoisomerisation http://scholar.google.co.uk/scholar?q=retinal+photoisomerisa...