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Pathway-directed recyclable chirality inversion of coordinated supramolecular polymers
2024 / Nature CommunicationsIt remains challenging to elucidate the fundamental mechanisms behind the dynamic chirality inversion of supramolecular assemblies with pathway complexity. Herein, metal coordination driven assembly systems based on pyridyl-conjugated cholesterol (PVPCC) and metal ions (Ag+ or Al3+) are established to demonstrate pathway-directed, recyclable chirality inversion a...
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Spatially selective actuation of liquid-crystalline polymer films through two-photon absorption processes
2024 / Nature CommunicationsSoft materials that respond to external stimuli are promising candidates for next-generation actuators with human-friendly nature1,2. Among various stimuli to induce strain, light offers spatial selectivity, which allows versatile motion of a continuous body. However, spatial selectivity of photoactuation has been limited in two dimension due to the predominant a...
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An Increase in the Rigidity of the Environment Favors MLCT over the MC State in [Ru(bpy)2(Nicotine)2](Cl)2: A Case Study of Photolabile Ligands
2024 / The Journal of Physical Chemistry ARu(II)-complexes with photolabile ligands find a wide range of applications, e.g., in drug release and in the design of light-responsive interfaces. While light-driven ligand loss has been studied mechanistically in detail for complexes in solution, comparably few studies are present that investigate the process in a material context, i.e., in a rigid environment a...
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Wide-range tunable circularly polarized luminescence in triphenylamine supramolecular polymers via charge-transfer complexation
2024 / Nature CommunicationsCircularly polarized luminescence materials with broad color tunability are highly valuable for applications in 3D display and photonic technologies. Here we show that incorporating intermolecular charge-transfer complexation into chiral supramolecular polymers is an efficient strategy to achieve this objective. Adjusting the charge-transfer strength between trip...
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Vitrimer-like elastomers with rapid stress-relaxation by high-speed carboxy exchange through conjugate substitution reaction
2024 / Nature CommunicationsWe report vitrimer-like elastomers that exhibit significantly fast stress relaxation using carboxy exchange via the conjugate substitution reaction of α-(acyloxymethyl) acrylate skeletons. This network design is inspired by a small-molecule model that shows the carboxy exchange reaction even at ambient temperature in the presence of 1,4-diazabicyclo[2.2.2]o...
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Z-Schematic Water Splitting on Photocatalyst Sheets Composed of Transition-Metal-Doped Metal Oxides with Long Wavelength Visible Light Responses and a Conductive Polymer
2024 / The Journal of Physical Chemistry CWe successfully developed Z-schematic photocatalyst sheets consisting of transition-metal-doped oxide materials responding to visible light with long wavelengths as O2-evolving photocatalysts and poly-3,4-ethylenedioxythiophene (PEDOT) of a conductive polymer as a solid-state hole transporter combined with Ru-loaded SrTiO3:Rh as a H2-evolving photocatalyst for wate...
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Stereospecific supramolecular polymerization of nanoclusters into ultra-long helical chains and enantiomer separation
2024 / Nature CommunicationsDuring the construction of supramolecular polymers of smaller nanoparticles/nanoclusters bearing hierarchy and homochirality, the mechanism understanding via intuitive visualization and precise cross-scale chirality modulation is still challenging. For this goal, a cooperative self-assembly strategy is here proposed by using ionic complexes with uniform chemical ...
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Sequence-encoded bioactive protein-multiblock polymer conjugates via quantitative one-pot iterative living polymerization
2024 / Nature CommunicationsProtein therapeutics are essential in treating various diseases, but their inherent biological instability and short circulatory half-lives in vivo pose challenges. Herein, a quantitative one-pot iterative living polymerization technique is reported towards precision control over the molecular structure and monomer sequence of protein-polymer conjugates, aiming t...
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Study of microstructure and corrosion behavior of nano-Al2O3 coating layers on TiO2 substrate via polymeric method and microwave combustion
2024 / Scientific ReportsThe study describes the successful development of a TiO2 ceramic substrate with a protective nano-Al2O3 coating using two different coating techniques: microwave combustion and polymeric methods. The coated ceramics demonstrate enhanced corrosion resistance compared to the uncoated substrate. The optimal TiO2 substrate was prepared by firing it at 1000 °C. Th...
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Unraveling the pathological biomineralization of monosodium urate crystals in gout patients
2024 / Communications BiologyCrystallization of monosodium urate monohydrate (MSU) leads to painful gouty arthritis. Despite extensive research it is still unknown how this pathological biomineralization occurs, which hampers its prevention. Here we show how inflammatory MSU crystals form after a non-inflammatory amorphous precursor (AMSU) that nucleates heterogeneously on collagen fibrils f...
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Ionic liquid based surfactant-free microemulsion as a new protocol for preparation of visible light active poly(methyl methacrylate)/TiO2 nanocomposite
2024 / Scientific ReportsThe practical application of sensitized TiO2 nanocomposites is very satisfying due to their high photon utilization in visible light, simple recovery without affecting the photocatalytic performance, high energy efficiency, low potential environmental risk, and low operational costs. The objective of this study is developing the ionic liquid (IL)-based surfactant...
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Chemically tailored block copolymers for highly reliable sub-10-nm patterns by directed self-assembly
2024 / Nature CommunicationsWhile block copolymer (BCP) lithography is theoretically capable of printing features smaller than 10 nm, developing practical BCPs for this purpose remains challenging. Herein, we report the creation of a chemically tailored, highly reliable, and practically applicable block copolymer and sub-10-nm line patterns by directed self-assembly. Polystyrene-block-...
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Synthesis of chitosan and gum arabic functionalized silver nanocomposite for efficient removal of methylene blue and antibacterial activity
2024 / Polymer Advanced TechnologiesThe discharge of industrial effluent has a harmful effect on the aquatic ecosystems and surrounding environment. The unprocessed discharge of organic dyes into the aquatic environment is a significant contributor to the aquatic pollution. Hence, it is imperative to ensure the proper disposal of organic colorants and their derivatives before their discharge into w...
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Biobased and biodegradable films exhibiting circularly polarized room temperature phosphorescence
2024 / Nature CommunicationsThere is interest in developing sustainable materials displaying circularly polarized room-temperature phosphorescence, which have been scarcely reported. Here, we introduce biobased thin films exhibiting circularly polarized luminescence with simultaneous room-temperature phosphorescence. For this purpose, phosphorescence-active lignosulfonate biomolecules are c...
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Elastomers mechanically reinforced and toughened with CO2 gas
2024 / Communications MaterialsGas-responsive polymers have recently attracted considerable interest as unconventional smart materials that provide a new path toward the utilization of specific gases including CO2. Herein, we report gas-responsive elastomers that enhance mechanical properties, such as modulus, strength, stretchability, and toughness with CO2 gas. Various types of amine groups ...
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