Photoinitiated charge separation in a hybrid titanium dioxide metalloporphyrin peptide material

Fry, H. Christopher; Liu, Yuzi; Dimitrijević, Nada M.; Rajh, Tijana

doi:10.1038/ncomms5606

Cited by 25 publications

(30 citation statements)

References 53 publications

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“…[9] Self-assembling properties of peptides have been previously used to create multidentate ligands for transition metal catalysts, [10] hydrogels with esterase activities, [11] and light-capturing materials. [12] The ability to genetically encode large peptide libraries opens the path for discovery and optimization of peptide catalysts using high-throughput techniques. [13] In this paper we show that self-assembly of short de novo designed peptides results in formation of efficient supramolecular catalysts capable of oxygen activation.…”

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confidence: 99%

Short Self‐Assembling Peptides Are Able to Bind to Copper and Activate Oxygen

2016

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We have shown that de novo designed peptides self-assemble in the presence of copper to create supramolecular assemblies capable of oxidation of dimethoxyphenol in the presence of dioxygen. Formation of the supramolecular assembly, akin to a protein fold, is critical for productive catalysis as the peptides possessing the same functional groups, but lacking the ability to self-assemble do not catalyze substrate oxidation. The ease with which we have discovered robust and productive oxygen activation catalysts suggests that these prion-like assemblies might have served as intermediates in evolution of enzymatic function and opens the path for development of new catalyst nanomaterials.

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mentioning

confidence: 99%

Short Self‐Assembling Peptides Are Able to Bind to Copper and Activate Oxygen

2016

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“…Peptides containing lysine and arginine have been proven to be efficient in mineralization of TiO 2 from titania precursors. The mineralization of TiO 2 by the assembled fibers of the amphiphilic peptide, c16‐AHL 3 K 3 ‐CO 2 H, has recently been carried out . Together with the incorporated chromophores, zinc 5,15‐diphenylporphyrin, the fibers present a platform for light‐harvesting and charge separation.…”

Section: Application Of Artificial Peptide–chromophore Lhcsmentioning

confidence: 99%

Peptide‐Modulated Self‐Assembly of Chromophores toward Biomimetic Light‐Harvesting Nanoarchitectonics

et al. 2015

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Elegant self-assembling complexes by the combination of proteins/peptides with functional chromophores are decisively responsible for highly efficient light-harvesting and energy transfer in natural photosynthetic systems. Mimicking natural light-harvesting complexes through synthetic peptides is attractive due to their advantanges of programmable primary structure, tunable self-assembly architecture and easy availability in comparison to naturally occuring proteins. Here, an overview of recent progresses in the area of biomimetic light-harvesting nanoarchitectonics based on peptide-modulated self-assembly of chromophores is provided. Adjusting the organization of chromophores, either by creating peptide-chromophore conjugates or by the non-covalent assembly of peptides and chromophores are highlighted. The light-harvesting properties, especially the energy transfer of the biomimetic complexes are critically discussed. The applications of such complexes in the mineralization of inorganic nanoparticles, generation of molecular hydrogen and oxygen, and photosynthesis of bioactive molecules are also included.

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“…Amyloid-templated metal-oxide semiconductor nanowires were successfully applied for creating photovoltaic devices. 40 In other cases, amyloid-like peptides or proteins conjugated with appropriate organic molecules can serve as active components for energy-harvesting devices. 25 Organic semiconductor molecules could also be coupled with amyloids for building photoelectric devices.…”

Section: Amyloid-enabled Functional Devicesmentioning

confidence: 99%

Amyloid-directed assembly of nanostructures and functional devices for bionanoelectronics

Wang

Zhong

2015

J. Mater. Chem. B

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Amyloids have the potential to serve as useful building blocks for functional materials and bionanoelectronic devices because they possess precisely assembled fibrillar structures, tunable functionalities, excellent mechanical properties, and ultrastability over a wide range of harsh conditions. These attributes endow amyloids with the ability to direct one-dimensional (1D) and two-dimensional (2D) patterning of nanoparticles and to serve as templates for controlled growth of nanowires, nanotubes and hybrid architectures. When coupled with conductive objects or functionalized with particular molecules, peptides or protein domains, amyloids could become active components of biosensors and devices relevant to energy applications. Before the full potential of amyloids in future bionanoelectronics can be realized, however, key engineering breakthroughs will be required.

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Photoinitiated charge separation in a hybrid titanium dioxide metalloporphyrin peptide material

Cited by 25 publications

References 53 publications

Short Self‐Assembling Peptides Are Able to Bind to Copper and Activate Oxygen

Short Self‐Assembling Peptides Are Able to Bind to Copper and Activate Oxygen

Peptide‐Modulated Self‐Assembly of Chromophores toward Biomimetic Light‐Harvesting Nanoarchitectonics

Amyloid-directed assembly of nanostructures and functional devices for bionanoelectronics

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