During the past .. years, non-invasive .rain stimulation has .ecome an emerging .eld in clinical neuroscience due to its capability to transiently modulate corticospinal excitability, motor and cognitive functions. .hereas transcranial magnetic stimulation has .een used e.tensively since more than t.o decades ago as a potential .neuromodulator., transcranial current stimulation .tCS. has more r...

Chromatic orthogonality is defined as the possibility of independently addressing different photosensitive sites using light beams colors. After its initial study in synthetic chemistry, this property has been applied many other fields, such lithography, chemical biology and catalysis. This short account gives an overview some significant work field last two decades.