Fig. 3: Near-field imaging of the reversible photoswitching of a 500 nm diameter lipid vesicle. | Nature Communications

Fig. 3: Near-field imaging of the reversible photoswitching of a 500 nm diameter lipid vesicle.

From: Transient infrared nanoscopy resolves the millisecond photoswitching dynamics of single lipid vesicles in water

Fig. 3

a Monochromatic MIR amplitude (s2) and b phase images (φ2) at 1603 cm-1 of a lipid vesicle in D2O being reversibly photoswitched between the trans-state and the cis-state, scale bars 500 nm. c Illustrated extraction of a circularity value for a lipid vesicle defined as 4πA/p2, with circumference p and area A, where the boundary criterion was s2 = 7.8 arb.units, scale bar 300 nm. d Reversible change in circularity between the trans- (blue) and cis-state (violet) of the lipid vesicle over two switching cycles.

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