Linker-free deposition and adhesion of Photosystem I onto nanostructured TiO2 for biohybrid photoelectrochemical cells

Photosystem I (PSI) from oxygenic photosynthetic organisms is an attractive sensitizer for nano-biohybrid solar cells as it has a combined light-harvesting and reaction center in one protein complex and operates at a quantum yield close to one in biological systems. Using a linker-free deposition te...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 31(2015), 5 vom: 10. Feb., Seite 1675-82
1. Verfasser: Shah, Vivek B (VerfasserIn)
Weitere Verfasser: Henson, William R, Chadha, Tandeep S, Lakin, Gerard, Liu, Haijun, Blankenship, Robert E, Biswas, Pratim
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Photosystem I Protein Complex titanium dioxide 15FIX9V2JP Titanium D1JT611TNE
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520 |a Photosystem I (PSI) from oxygenic photosynthetic organisms is an attractive sensitizer for nano-biohybrid solar cells as it has a combined light-harvesting and reaction center in one protein complex and operates at a quantum yield close to one in biological systems. Using a linker-free deposition technique enabled by an electrospray system, PSI was coupled to 1-D nanostructured titanium dioxide thin films to fabricate an electrode for a photoelectrochemical cell. After deposition, the surfactant in the PSI aggregate was dissolved in the surfactant-free electrolyte, ensuring that partly hydrophobic PSI was not resuspended and stayed in contact with titanium dioxide. A maximum current density of 4.15 mA cm(-2) was measured after 10 min of electrospray deposition, and this is the highest current density reported so far for PSI-based photoelectrochemical cells. The high current is attributed to 1D nanostructure of titanium dioxide and orientation of the PSI onto the surface, which allows easy transfer of electrons 
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700 1 |a Chadha, Tandeep S  |e verfasserin  |4 aut 
700 1 |a Lakin, Gerard  |e verfasserin  |4 aut 
700 1 |a Liu, Haijun  |e verfasserin  |4 aut 
700 1 |a Blankenship, Robert E  |e verfasserin  |4 aut 
700 1 |a Biswas, Pratim  |e verfasserin  |4 aut 
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