Photodimerisation of a styrylpyrazine amphiphile suppresses the release ofglucose entrapped in its mixed vesicle with DPPC

Photolysis of a styrylpyrazine amphiphile in the bilayer of a vesicle made from its mixture with DPPC, with irradiation above 300 nm, effectively supp ressed the release of glucose entrapped in the vesicle, while the stilbene analogue induced a sudden perturbation to release the glucose under the sam e conditions.