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A photosynthesis-inspired supramolecular system: caging photosensitizer and photocatalyst in apoferritin
- Source :
- Photosynthesis Research. 142:169-180
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- Inspired by the bioinorganic structure of natural [FeFe]-hydrogenase ([FeFe]-H2ase) that possesses iron sulfur clusters to catalyze proton reduction to hydrogen (H2), we design a supramolecular photosystem by sequentially integrating hydrophobic ruthenium complex (as a photosensitizer) and diiron dithiolate complex (as a photocatalyst) into the inner surface or cavity of apoferritin via noncovalent interactions. This platform allows photosensitizer and catalyst to localize in a close proximity and short-distance electron transfer process to occur within a confined space. The resulted uniform core-shell nanocomposites were stable and well dispersed in water, and showed enhanced H2 generation activity in acidic solution as compared to the homogenous system without apoferritin participation.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Luminescence
Supramolecular chemistry
chemistry.chemical_element
Plant Science
Photochemistry
01 natural sciences
Biochemistry
Catalysis
Ruthenium
Nanocomposites
Artificial photosynthesis
Supramolecular assembly
Electron Transport
03 medical and health sciences
Electron transfer
Non-covalent interactions
Photosensitizer
Photosynthesis
chemistry.chemical_classification
Photosensitizing Agents
Cell Biology
General Medicine
Hydrogen-Ion Concentration
030104 developmental biology
chemistry
Apoferritins
Spectrophotometry, Ultraviolet
Hydrogen
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15735079 and 01668595
- Volume :
- 142
- Database :
- OpenAIRE
- Journal :
- Photosynthesis Research
- Accession number :
- edsair.doi.dedup.....637a2e70d1d7d761b18cf43ea75eeb1b