Short peptide-regulated aggregation of porphyrins for photoelectric conversion

Wang, Shengjie; Zhang, Dongxiu; Zhang, Xiao; Yu, Daoyong; Jiang, Xiaofeng; Wang, Zhenyang; Cao, Meiwen; Xia, Yongqing; Liu, Heyuan

doi:10.1039/c8se00523k

Cited by 22 publications

(26 citation statements)

References 56 publications

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“…TPPS has also been exploited for assembling with a short cationic peptide, with the aim to explore its potential application in light harvesting devices [65]. The assembly was carried out in solution at pH = 2.5, where the zwitterionic form of TPPS is present.…”

Section: Effects Of Chemical External Stimulimentioning

confidence: 99%

The Assembly of Porphyrin Systems in Well-Defined Nanostructures: An Update

et al. 2019

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The interest in assembling porphyrin derivatives is widespread and is accounted by the impressive impact of these suprastructures of controlled size and shapes in many applications from nanomedicine and sensors to photocatalysis and optoelectronics. The massive use of porphyrin dyes as molecular building blocks of functional materials at different length scales relies on the interdependent pair properties, consisting of their chemical stability/synthetic versatility and their quite unique physicochemical properties. Remarkably, the driven spatial arrangement of these platforms in well-defined suprastructures can synergically amplify the already excellent properties of the individual monomers, improving conjugation and enlarging the intensity of the absorption range of visible light, or forming an internal electric field exploitable in light-harvesting and charge-and energy-transport processes. The countless potentialities offered by these systems means that self-assembly concepts and tools are constantly explored, as confirmed by the significant number of published articles related to porphyrin assemblies in the 2015–2019 period, which is the focus of this review.

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Section: Effects Of Chemical External Stimulimentioning

confidence: 99%

The Assembly of Porphyrin Systems in Well-Defined Nanostructures: An Update

et al. 2019

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“…The effect of porphyrin concentration was investigated at a constant Fmoc-ChaChaGK concentration of 1 mM. As shown in the UV–vis spectra (Figure A), the peak at 434 nm of the dianions blue shifted to 420 nm at lower TPPS concentrations (25, 50 μM), suggesting that the TPPS monomers were coated on the self-assembled peptide structures (surface coating) and resulted in the formation of the peptide–porphyrin adsorption complexes. − New absorption peaks at 490 and 706 nm representing the TPPS J-aggregate appeared when the concentration of TPPS was greater than 50 μM, where their intensity increased with the increased concentration until a maximum (500 μM) was reached. A split Cotton effect at ∼490 nm in the CD spectra originating from the chiral packing structure of the achiral TPPS molecules is another typical characteristic of J-aggregate formation, in which the peak intensity and width reflect the quantity and regularity of J-aggregates, respectively .…”

Section: Results and Discussionmentioning

confidence: 82%

Mechanistic Process Understanding of the Biomimetic Construction of Porphyrin-Based Light-Capturing Antennas from Self-Assembled Fmoc-Blocked Peptide Templates

Xiu

Zhang

et al. 2020

ACS Sustainable Chem. Eng.

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Natural photosynthesis provides a perfect example of solar energy utilization that converts CO2 to carbohydrates at high efficiency. Herein, an innovative approach was developed to construct light-harvesting antennas via the precise control of porphyrin aggregation and platinum organization on the surface of the self-assembled structures of Fmoc-blocked peptides (Fmoc-ChaChaGK-NH2 and Fmoc-FFGK-NH2). The photophysical properties and the photocatalytic activity of the antenna are dependent on the aggregating structure of porphyrin and arrangement of Pt nanoparticles, which are related closely to the molecular structure of peptides, as well as to the peptide/porphyrin molar ratio and their concentrations. The Fmoc-ChaChaGK/porphyrin complexes prepared at a peptide (Fmoc-ChaChaGK)/TPPS molar ratio of 2 and TPPS concentration of 500 μM possess the highest photo-to-electric conversion efficiency and photocatalytic ability in transforming light energy into chemical energy and storing in the energy-storage molecules (reduced nicotinamide adenine dinucleotide, NADH). The results demonstrate the correlation between the hierarchical structure and light-responsive properties of the antenna and highlight the mediating effect of noncovalent interactions in the construction and stabilization of the photoresponsive materials.

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“…A self-assembling amphiphilic peptide was exploited by Wang et al as a template for the co-assembly of system 32 [ 85 ]. The porphyrin-functionalized β-sheet nanofilaments obtained behaved as artificial photo-responsive synthetic cell-like structures and were explored for the development of artificial photosynthetic devices [ 86 ]. The self-assembly of the peptide was not affected by the presence of the porphyrin but the formation of the porphyrin J-aggregates was favored by the peptide assemblies in mildly acidic environment and by specific peptide–porphyrin molar ratio.…”

Section: Medium and Long Peptidesmentioning

confidence: 99%

Peptide-Tetrapyrrole Supramolecular Self-Assemblies: State of the Art

et al. 2021

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The covalent and noncovalent association of self-assembling peptides and tetrapyrroles was explored as a way to generate systems that mimic Nature’s functional supramolecular structures. Different types of peptides spontaneously assemble with porphyrins, phthalocyanines, or corroles to give long-range ordered architectures, whose structure is determined by the features of both components. The regular morphology and ordered molecular arrangement of these systems enhance the photochemical properties of embedded chromophores, allowing applications as photo-catalysts, antennas for dye-sensitized solar cells, biosensors, and agents for light-triggered therapies. Chemical modifications of peptide and tetrapyrrole structures and control over the assembly process can steer the organization and influence the properties of the resulting system. Here we provide a review of the field, focusing on the assemblies obtained from different classes of self-assembling peptides with tetrapyrroles, their morphologies and their applications as innovative functional materials.

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Short peptide-regulated aggregation of porphyrins for photoelectric conversion

Abstract: A facile method was developed to construct ordered porphyrin J-aggregates with high light-to-electron conversion efficiency through the regulation of cationic short-peptide assemblies.

Cited by 22 publications

References 56 publications

The Assembly of Porphyrin Systems in Well-Defined Nanostructures: An Update

The Assembly of Porphyrin Systems in Well-Defined Nanostructures: An Update

Mechanistic Process Understanding of the Biomimetic Construction of Porphyrin-Based Light-Capturing Antennas from Self-Assembled Fmoc-Blocked Peptide Templates

Peptide-Tetrapyrrole Supramolecular Self-Assemblies: State of the Art

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