Available on-demand - S.SM07.01.22
Photosynthetic Bacterial Reaction Center for Electrode Biointerfaces
Massimo Trotta2,Gianluca Farinola1,Roberta Ragni1,Francesco Milano2,Danilo Vona1,Gabriella Buscemi1,2
University degli Studi-Bari Aldo Moro1,National Research Council2
Photoenzymes are the specialized component in photosynthetic organisms able to perform light transduction into charge separated states. As natural photoconverters that harvest light by photoactive antennas, generating electron-hole pairs and tunnelling electrons in precise biochemical pathways, they can be exploited for biodevices scaffolds [1-2]. In this frame, the engineering of bioelectronic frameworks have the upmarket asset to be considerate as an eco-friendly and scalability technology, using one of the greenest energy source available to us, sunlight, to gain other forms of useful energy. Therefore, the possibility of taking advantage of this unmatched photoconversion efficiency to create functional nanomaterials and bio-hybrid devices is very attractive.
The implementation of these unique biological systems into nanostructures or anchoring on devices electrode surfaces require the development of suitable chemical manipulation, because an efficient interfacing with electrodes for electronic applications still represents an issue. To overcome this problem, which limits the performance and applicability of photoenzymes-based technology, several attempts have been undertaken, focusing on the deployment of soft organic materials that can boost the bio-electrode interface. With this aim photoenzymes have been embedded in liposomes , giant vescicles  and polymersomes . Moving forward, soft material with conductive and tunable features have been tested [7-8] to improve the energy extraction by photosynthetic proteins and the communication between the biological and electronic components in hybrid devices, that will be addressed in this presentation.
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