Photochromism-induced multi-mode optical modulations and fluorescent temperature sensing in Sr/Er-codoped (K0.5Na0.5)NbO3 ceramics
DOI: 10.1039/D4QI01804D, Research Article
Sr/Er was codoped in KNN ceramics to induce the coexistence of O and T phases, resulting in improving optical transparency, maintaining moderate ferroelectricity, inducing excellent PC behavior and fluorescence temperature sensing performance.
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Operando scanning electron microscopy platform for in situ imaging of fluid evolution in nanoporous shale
DOI: 10.1039/D3LC01066J, Paper
Fluid-solid interactions in nanoporous materials underlie processes fundamental to nature and the engineered environment, including the thermochemical transformation of argillaceous materials during high-level nuclear waste disposal. Operando fluid-solid resolution at...
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Two-temperature model of the non-thermal chemical dissociation of CO2
DOI: 10.1039/D4RE00300D, Paper
A two-temperature model with a vibrational temperature different from the gas temperature is presented for the decomposition of CO2.
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Temperature dependence of micelle shape transitions in copolymer solutions: the role of inter-block incompatibility
DOI: 10.1039/D4SM00331D, Paper
The incompatibility of the blocks in a copolymer strongly affects the temperature dependence of the micelle shape transitions in solution.
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Dynamics in polymers with phase separated dynamic bonds: the case of a peculiar temperature dependence
DOI: 10.1039/D4SM00115J, Paper
Relaxation processes in polymers with phase separated dynamic bonds include segmental (α) process, individual bond dissociation (α*) and rearrangement (intermediate), structural relaxation in clusters (α2) and terminal relaxation (c).
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A high-performance room-temperature NH3 gas sensor based on WO3/TiO2 nanocrystals decorated with Pt NPs
DOI: 10.1039/D4RA00881B, Paper
In this work, a high-performance room-temperature ammonia (NH3) gas sensor based on Pt-modified WO3–TiO2 nanocrystals was synthesized via a two-step hydrothermal.
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Kinetic and reactivity of gas-phase reaction of acyclic dienes with hydroxyl radical in the 273–318 K temperature range
DOI: 10.1039/D3RA08750F, Paper
The relative position of two CC on the acyclic dienes could determine its reactivity. The number and type of alkyl group and the number of addition sites on diene could also strongly affect its reactivity toward OH radical.
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Tuning in optoelectronic properties of In/Te bilayer heterostructure upon annealing at different temperatures: surface wettability and photo response study for photonic and solar cell applications
DOI: 10.1039/D4RA00807C, Paper
The In/Te bilayer thin film synthesized by thermal evaporation method with 350 nm thickness annealed at different temperatures and their opto-electronic properties change. The films showed a hydrophobic nature, with enhancement of photo current from nA to ∼mA.
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Augmentation of inductive effects through short range intramolecular hydrogen bonds for the improvement of cooperativity of trimeric rosettes
DOI: 10.1039/D4ME00008K, Paper
Three key design elements improve the binding strength of trimeric rosettes: the direction of hydrogen bonds, the addition of groups with inductive effects, and the presence of ambifunctional intramolecular hydrogen bonds between the substituents.
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High-temperature emulsification coupled with low-temperature gelation for fabrication of agarose microsphere implants with well-controlled size for skin tissue enhancement
DOI: 10.1039/D4TB01564A, Paper
Agarose offers self-gelation, biodegradability, and biocompatibility. We have developed a high-temperature emulsification followed by low-temperature gelation method to create agarose microsphere implants for skin tissue augmentation.
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Phase-separated structures of tunable thermoresponsive and matrix polymers for large-scale temperature monitoring coatings
DOI: 10.1039/D4TB01743A, Paper
Layered polydiacetylene (PDA) exhibits a thermoresponsive color change. The thermoresponsivity and large-scale coatability are controlled for medical applications by the intercalated guests and matrix polymer, respectively.
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Nanoparticles based image-guided thermal therapy and temperature feedback
DOI: 10.1039/D4TB01416B, Review Article
Nanoparticles have emerged as versatile tools in the realm of thermal therapy, offering precise control and feedback mechanisms for targeted treatments. This review explores the intersection of nanotechnology and thermal...
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Densification of sodium and magnesium aluminosilicate glasses at ambient temperature: structural investigations by solid-state nuclear magnetic resonance and molecular dynamics simulations
DOI: 10.1039/D4CP02431A, Paper
Superposition of 17O triple-quantum magic-angle spinning NMR spectra of 20MgO–20Al2O3–60SiO2 (MAS**) and 20Na2O–20Al2O3–60SiO2 (NAS**) glasses prepared at ambient pressure (AP) and pressurized and decompressed at 25 GPa at room temperature (HP(25)).
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Influence of symmetry breaking on the absorption spectrum of crystal violet: from isolated cations at 5 K to room temperature solutions
DOI: 10.1039/D4CP03825H, Paper
Theoretical and experimental spectroscopy of crystal violet resolves the influence of temperature and symmetry breaking on absorption properties in different environments.
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Prediction of high-temperature superconductors at ambient pressure with diamond-like structures: B2CX (X = N, P)
DOI: 10.1039/D4CP03755C, Paper
We predict B2CX (X = N, P) are standard phonon-mediated superconductors with Tc = 44.3–46.1 K, higher than most diamond-like superconductors. Coupling between metallic σ electrons and softened E phonons contributes greatly to their superconductivity.
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Unlocking the potential of metal ligand cooperation for enantioselective transformations
DOI: 10.1039/D3CS00998J, Viewpoint
Metal–ligand cooperation, (MLC) is a versatile catalysis concept. Herein, we discuss the historical context, mechanisms, and applications, suggesting exploring MLC for enantioselective transformations beyond (de)hydrogenative processes.
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Gel polymer electrolytes for rechargeable batteries toward wide-temperature applications
DOI: 10.1039/D3CS00551H, Review Article
Design principles, engineering strategies, challenges, and opportunities of gel polymer electrolytes for rechargeable batteries toward wide-temperature applications are thoroughly reviewed.
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Carlos Sainz — the smooth operator with a hard edge
The 29-year-old returned from emergency appendix surgery to win the Australian GP, remaining the only driver outside Red Bull to triumph since 2022. Out of contract at the end of the season, the Spaniard’s analytical approach and aggressive driving style are set to attract top suitors
What could be the low-temperature limit of atomic layer deposition of platinum using MeCpPtMe3 and oxygen?
DOI: 10.1039/D4CC04679J, Communication
Room-temperature atmospheric-pressure ALD enables the deposition of highly dispersed Pt sub-nanometer clusters on a gram-scale quantity of TiO2 nanopowder.
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Ceria-based supported metal catalysts for the low-temperature water-gas shift reaction
DOI: 10.1039/D4CC04072D, Feature Article
Water-gas shift (WGS) reaction is a crucial step for the industrial production of hydrogen or upgrading hydrogen generated from fossil or biomass sources by removing the residual CO. However, current...
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Circularly polarized Room-Temperature Phosphorescence enhanced by Dynamic Cross-linked Networks fixation
DOI: 10.1039/D4NJ00510D, Paper
Organic ultra-long room temperature phosphorescence (OURTP) has been widely used in applications including encryption and anti-counterfeiting. However, few research has focused on circularly polarised luminescence (CPL) with RTP materials. In...
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Temperature-dependent structural and optical properties of Sb-doped SnO2 nanoparticles and their electrochemical analysis for supercapacitor application
DOI: 10.1039/D4NJ00918E, Paper
Transparent conducting oxides (TCOs) play an important role in advanced energy harvesting and storage systems, as well as cutting-edge display technology.
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Ambient temperature-prepared BiOBr-supported zero-pretreatment coal gasification fine slag for organic pollutant removal
DOI: 10.1039/D3NJ05906E, Paper
The BiOBr/CGFS photocatalysts were synthesized at ambient temperature by a simple hydrolysis method with zero pre-treatment of CGFS. CGFS led to the improvement of the quantum efficiency of BiOBr and further promoted the photocatalytic performance.
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Construction of a nontoxic nano-pesticide and its co-application with natural predators for perfect cooperative pest management: an innovative strategy for pesticide reduction
DOI: 10.1039/D4EN00060A, Paper
The current study develops a nano-pesticide that is nontoxic toward the predatory stinkbug but with enhanced bioactivity toward the common cutworm, which proposes to co-apply the nano-pesticide with predator as an innovative pest control technique.
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Nanoscale control over water-film thickness using temperature modulation: tuning mineral carbonation reactivity
DOI: 10.1039/D3EN00884C, Communication
Temperature modulation was demonstrated as a novel way to control water partitioning during the reaction of silicate minerals with water-saturated supercritical carbon dioxide.
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Cooperative catalytic behavior of CoS and Bi2S3 nanoparticles on Zr:BiVO4 photoanodes for enhanced photoelectrochemical sulfite oxidation coupled with pharmaceutical pollution degradation
DOI: 10.1039/D4EN00018H, Paper
Photoelectrocatalysis is a promising advancing technology that converts energy into electricity and purifies the environment. A photoelectrochemical reaction (PEC) that splits water and degrades pharmaceutical pollutants can be achieved using...
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A facile synthesis of a Ce-based MOF at room temperature for effective adsorption of methylene blue
DOI: 10.1039/D4CE00096J, Paper
Ce-UiO-66-NH2 was synthesized in water and ethanol at room temperature for effective removal of MB in aqueous solution.
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The structural evolution of CL-20-based energetic host–guest solvates at decomposition temperature according to the perceptions of THz spectroscopy
DOI: 10.1039/D3CE01310C, Paper
This work employed variable-temperature THz spectroscopy to analyze the structural evolution of host–guest energetic CL-20/H2O2 and CL-20/H2O solvates, as well as the mechanism of intermolecular interactions using DFT calculation and MD simulation.
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A novel one-dimensional Y2(Zr0.6Ti0.4)2O7:Eu tube-in-tube nanostructure fabricated by a single-nozzle electrospinning technique and its low color drift property at high temperature
DOI: 10.1039/D4CE00149D, Paper
1D Y2(Zr0.6Ti0.4)2O7:Eu tube-in-tube nanostructures were fabricated by a simple single-nozzle electrospinning method. These materials exhibit excellent luminescent stability and lower color drift performance at high temperatures.
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Operating profit margin of 625 listed companies hits multi-year low
Civil Aviation Ministry notifies operational guidelines for drone PLI scheme
The PLI scheme will be only for the companies that are involved in the manufacture of drone and drone components in India
Hawala operators, bullion traders face I-T heat
The I-T searches followed "specific and definitive information" against at least a dozen hawala operators and jewellers.
US Perspectives on Sino-Russian Cooperation in the Arctic and Roles for Partners
US Perspectives on Sino-Russian Cooperation in the Arctic and Roles for Partners US Perspectives on Sino-Russian Cooperation in the Arctic and Roles for Partners
PM Modi, Spanish President Sanchez hold productive discussions, review bilateral cooperation across various sectors
Telcos creating a false equivalence with satellite operators on spectrum pricing : Amazon, Starlink
Reliance Jio, which is pushing for auctioning spectrum, said that arguments that satellite frequencies are always assigned in a shared mode and on a non-exclusive basis are both factually and technically incorrect and should be ignored
Metal- and light-free decarboxylative direct C–H alkylation of heteroarenes at room temperature
DOI: 10.1039/D4OB00187G, Paper
This study reports a metal- and light-free decarboxylative C–H alkylation of heteroarenes at room temperature.
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Sustainable preparation of 2-acylbenzothiazoles under the cooperation of ionic liquids and microwave irradiation
DOI: 10.1039/D4OB00315B, Paper
A series of 2-acylbenzothiazole derivatives were sustainably synthesized for the first time under the cooperation of ionic liquids and microwave irradiation, metal- and extra-additives-free conditions.
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Deep tech is helping airlines sustain operations during Covid
Integrated biometric-enabled frameworks for real-time test results, travel details and vaccine status are key to making air travel safe
Insolvency of aircraft operator: default remedies.
Should men be allowed into operation theatres when their wives are having a baby? Doctors weigh in after YouTuber’s video sparks controversy
YouTuber Irfan recently posted a video on social media that showed him cutting the umbilical cord of his newborn, in the operation theatre of a private hospital in Chennai; consent of the medical personnel involved to being videoed was another aspect doctors say needs discussion
'Scale at which this scam operates is shocking'
'There is an eminently fertile ground that perpetrators must be finding in our society.'
Risk Management: Learning to tackle operational surprises
Cooperatives are the solution for hunger, farmers’ woes: Brazil Agriculture Minister
Minister Carlos Fávaro offers transfer of technology to India to boost cooperative production
PM Modi lauds role of cooperatives in farmers’ welfare
PM Modi made his comments while inaugurating the pilot project of “world’s largest grain storage plan”, which is being done across 11 States
Guaranteed MSP is an ethical imperative
Farmers hardly get 30% of the price paid by the consumers. This will increase if MSP is guaranteed