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We report the successful deposition of mono- and multilayers of azopoly-L-lysine (APLL), a synthetic polypeptide to which an azobenzene moiety has been added as a side chain. Such a molecule in solution shows phototropism, due to light-induced trans-cis isomerization. The Langmuir-Blodgett (LB) deposition was difficult due to the very high viscosity of the Langmuir monolayer; we were able however...
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