Publication date: 8th October 2020
Photosynthetic organisms are fundamental for the life on planet Earth. They sustain their growth by means of solar radiation. Solar energy is converted in the reaction center (RC), a transmembrane photoenzyme that transduces light into a state charge separated states with near 100% of efficency. Photon absorption induces the formation of a long living electron-hole pair [1-2]. This photogenerated hole-electron pair is of great interest for many applications based on organic-biological hybrids.
Indeed, since RC retains its efficency in an isolated state, over the last few decades was thoroughly studied to be used as main active component for photoconversion in electronic and electrochemical hybrid devices. The bio-hybid scaffold become an upmarket asset for an eco-friendly and scalability technology, using one of the greenest energy source available to us, sunlight, to gain other forms of useful energy[3].
However, the implementationof RCscaffolds in vitro requiresfurtheroptimization. The most common encapsulation techniques involve systems such as liposomes [4], giant vescicles [5]and polymersomes [6]. Moving forward, the attention shifted towards more tunable soft material, easily tailored to fulfil specific goals. In this context biocompatible melanine-like polymers, such as polydopamine[7], are quite versatile. We present here the encapsulation of fully active RCs into semi-trasparent polydomanine nanoparticles.
Funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement No 800926 (HyPhOE, Hybrid Electronics Based on Photosynthetic Organisms)
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