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A Dual-Pathway Responsive Mechanophore for Intelligent Luminescent Polymer Materials.
J Am Chem Soc
January 2025
Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China.
Mechanoluminescent units, when integrated into polymer matrices, undergo structural transformations in response to mechanical force, resulting in changes in fluorescence. This phenomenon holds considerable promise for the development of stress-sensing materials. Despite the high demand for robust, tunable mechanoluminescent mechanophores for force assessment and smart force-responsive materials, strategies for their design and synthesis remain underdeveloped.
View Article and Find Full Text PDFSynthesis and biological evaluation of rationally designed pyrazoles as insecticidal agents.
Mol Divers
January 2025
Department of Pharmaceutics, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia.
The current research focused on the synthesis of two series of pyrazole derivatives and evaluation of their insecticidal effectiveness. In the first series, seven pyrazole Schiff bases 3a-g were successfully synthesized with yields (79-95%) by condensing phenylfuran-2-carbaldehyde with substituted pyrazole rings. In the second series, eleven amino acid-pyrazole conjugates 6a-k were synthesized utilizing acetic acid, sulfuric acid, morpholine, and EDC.
View Article and Find Full Text PDFAnalytical protocol for measuring micro-molar quantities of sulfur volatile species in experimental high pressure and temperature fluids.
Commun Chem
January 2025
Dipartimento di Scienze Della Terra, Università Degli Studi di Milano, via Mangiagalli 34, I-20133, Milano, Italy.
Validating thermodynamic models is essential in experimental geosciences for exploring increasingly complex systems and developing analytical protocols. However, investigating solid-fluid equilibria in mm-sized experimental capsules poses several challenges, particularly in sulfur-bearing chemical systems. These include maintaining bulk fluid composition and performing quantitative analysis with extremely low amounts of synthesized fluid.
View Article and Find Full Text PDFAn experimental study on the synergic damage of chemical solutions and stress to coal.
Sci Rep
January 2025
CSIRO Mineral Resources, Brisbane, QLD, 4069, Australia.
This paper investigates the impact of treatment with chemical solutions of varying pH values on the micro-macroscopic damage in coal samples under load, employing a combination of Small Angle X-ray Scattering (SAXS) experiments and uniaxial compression tests. The experimental results show that soaking coal samples in NaOH, HCl, and distilled water for 7 days leads to reductions in uniaxial compressive strength by 39.19%, 47.
View Article and Find Full Text PDFDroplets impact on sparse microgrooved non-wetting surfaces.
Sci Rep
January 2025
Department of Mechanics, School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, People's Republic of China.
Droplets impinging on sparse microgrooved polydimethylsiloxane (PDMS) surfaces with different solid fractions was experimentally investigated. First, wettability and stability of droplets on these surfaces was analyzed. The advancing and receding contact angles were found to have a large difference between in the longitudinal direction and in the transverse one, which could be attributed to the anisotropy of the micropatterned surfaces.
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