Reversible Photo-Control over Transmembrane Anion Transport Using Visible-Light Responsive Supramolecular Carriers
2020
Ion
transport across lipid bilayer membranes in biology is controlled by membrane
proteins, which in turn are regulated in response to chemical-, physical- and
photo-stimuli. The design of synthetic supramolecular ion transporters able to
be precisely controlled by external signals, in particular bio-compatible
wavelengths of visible light, is key for achieving spatio-temporal control over
function. Here we report two-colour responsive molecular photo-switches that
act as supramolecular transmembrane anion carriers. Reversible switching of the
photo-switch within the lipid bilayer membrane is achieved using biocompatible
visible wavelengths of light, such that temporal control over transmembrane
anion transport is achieved through alternating irradiation with red and blue
light.
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