Hydrogen bonding interactions affect the hierarchical self-assembly and secondary structures of comb-like polypeptide supramolecular complexes displaying photoresponsive behavior

Mohamed, Mohamed Gamal; Tu, Jia-Huei; Huang, Shih-Jen; Chiang, Yi Ju; Kuo, Shiao‐Wei

doi:10.1039/c6ra07907e

Cited by 9 publications

(4 citation statements)

References 79 publications

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“…Because of their ability to undergo trans-to-cis photoisomerization, azobenzene chromophores have been used widely as building blocks in various stimuli (photo)-responsive supramolecular compounds. − Hartley et al discovered the photoisomerization of the azo chromophore, which experiences photoinduced trans-to-cis isomerization under irradiation with a UV lamp and cis-to-trans isomerization upon being left in the dark or heating . The photoresponsive nature of azobenzene chromophores can result in remarkable changes in visual color, dipole moment, and molecular orientation .…”

Section: Introductionmentioning

confidence: 99%

Photoresponsive Azobenzene Materials Based on Pyridine-Functionalized Benzoxazines as Surface Relief Gratings

EL‐Mahdy

Lin

et al. 2019

ACS Appl. Polym. Mater.

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We describe the one-pot syntheses of an azobenzene- and pyridine-functionalized benzoxazine monomer (PAPBZ) and a main chain-type polybenzoxazine (BAPBZ) through Mannich condensations of a diamino- and azobenzene-containing pyridine derivative (azo-pyridine-2NH2), paraformaldehyde, and either phenol or bisphenol in a mixture of toluene and EtOH. Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopy confirmed the chemical structures of the benzoxazine monomer and polymer. The thermal curing behavior and stability of these benzoxazines were monitored using differential scanning calorimetry, FTIR spectroscopy, and thermogravimetric analysis; the PAPBZ monomer underwent complete ring-opening polymerization to form its polybenzoxazine, while the BAPBZ polymer also underwent thermal curing to give a high-density cross-linked polybenzoxazine. Because of the photoresponsive azobenzene units in the benzoxazine monomer and in the main chain of the polybenzoxazine, these materials exhibited photoresponsivity through reversible photoinduced trans-to-cis isomerization under UV irradiation. The degrees of isomerization of PAPBZ and BAPBZ were 19.3 and 13.9%, respectively. In addition, we used these materials to fabricate surface relief gratings exhibiting interference patterns with tunable long-range order. Accordingly, such azobenzene- and pyridine-functionalized benzoxazines appear to have applicability within optical devices and optical storage media.

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Section: Introductionmentioning

confidence: 99%

Photoresponsive Azobenzene Materials Based on Pyridine-Functionalized Benzoxazines as Surface Relief Gratings

EL‐Mahdy

Lin

et al. 2019

ACS Appl. Polym. Mater.

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“…The modulation of polypeptide secondary structures through hydrogen bonding with additives has been reported. [43][44][45] For example, a phenolic resin with hydrogen bonding sites was blended with poly(glutamate)s to control the secondary structure. 43 In this blend, the stabilization of a-helical conformations was dependent on the rigidity of the protecting or side chain groups and the content of phenolic resin, which impacted the hydrogen bonding interactions between the polypeptide and phenolic resin.…”

Section: Resultsmentioning

confidence: 99%

Leveraging peptide–cellulose interactions to tailor the hierarchy and mechanics of peptide–polymer hybrids

et al. 2023

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“…then there will be six equations and only six unknowns. Thus, equation (13) in this case can be solved as the number of unknowns matches that of the equations.…”

Section: Equilibrium Equationsmentioning

confidence: 99%

“…Through the development of science and technology, it has been gradually found that chiral morphologies are ubiquitous in nature, and they can span multiple orders of magnitude in scale. Furthermore, there exist not only macro chiral morphologies, such as plants, winding vines, and rotating snail shells [7][8][9], but also micro chiral morphologies, such as DNA, polypeptide, actin filaments, and bacterial flagella [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical chirality of biofilament induced by its chiral microstructure

Zhao¹,

Bian²,

Zhang³

et al. 2022

Phys. Scr.

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Biological filaments with chirality are ubiquitous in biology, but the mechanism behind the chiral growth of these filaments is still unclear. To understand the formation mechanism of these chiral filaments, a hierarchical chiral model for plant tendrils is established in this work based on the Cosserat beam theory and the constitutive equation of chiral materials, which can be used to describe the deformation of chiral biological filaments. Based on this model, the bend–twist coupling chirality is considered, the chirality transfer of plant tendrils from the micro to the macro scale is derived, and the variation in the chirality coefficients with the axial strain is obtained. By introducing a pre-strain and a pre-twist deformation, a theoretical explanation for the swelling and deswelling of plant tendrils is provided as an example. Finally, based on the shooting method, the spatial configuration of plant tendrils under the action of an external force at the end load is obtained. It is found that plant tendrils can achieve regular chiral morphologies or even hierarchical chiral morphologies by adjusting their internal stresses and elastic properties. During this process, the bend–twist coupling is more critical than the stretch–twist coupling. In the presence of external loads, the chiral perversion of plant tendrils can be realized by adjusting the bend–twist coupling coefficient; however, it cannot be realized by adjusting the stretch–twist coupling coefficient. This work is of universal significance and can provide a theoretical guidance for the artificial design and performance optimization of chiral filament materials.

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Hydrogen bonding interactions affect the hierarchical self-assembly and secondary structures of comb-like polypeptide supramolecular complexes displaying photoresponsive behavior

Abstract: Hierarchical lamellae-within-lamellae structure for the PTyr/AzoPy-C16 supramolecular complex, featuring long-range-ordered lamellae arising from the PTyr within lamellae arising from AzoPy-C16 units oriented in a perpendicular manner.

Cited by 9 publications

References 79 publications

Photoresponsive Azobenzene Materials Based on Pyridine-Functionalized Benzoxazines as Surface Relief Gratings

Photoresponsive Azobenzene Materials Based on Pyridine-Functionalized Benzoxazines as Surface Relief Gratings

Leveraging peptide–cellulose interactions to tailor the hierarchy and mechanics of peptide–polymer hybrids

Hierarchical chirality of biofilament induced by its chiral microstructure

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