A strategic atom swap solves a longstanding selectivity problem in the synthesis of complex pyrazoles and is something that has been on the wish list of medicinal chemists for some time. The formal sulfur–nitrogen exchange leveraged asymmetry…
Category: 6. Chemistry
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Synergistic effect of Ag(111) and transition metal promoters toward optimization of catalytic ethylene epoxidation selectivity
Structural optimization and surface models
Figure 1 presents the top and side views of optimized structures of promoted Ag catalysts. The Ag (111) surface was selected as the representative surface for the catalyst due to its superior…
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Design and evaluation of indacenothienothiophene based functional materials for second and third order nonlinear optics properties via DFT approach
The present research focuses on exploration of the NLO efficiency of newly designed derivatives (AO1-AO6). For this purpose, the A–π–A type configured parent molecule (AOIC) is modified into D–π–A from the reference compound (AOR) by…
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Cyclic voltammetry insights into Ni/Al-carbonate hydrotalcite catalysis for methanol oxidation
Structural and morphological analysis of Ni-LDH
The structural and morphological analysis of Ni-LDH was conducted using techniques such as XRD, SEM, FTIR, and Raman spectroscopy to determine its crystallographic structure, surface morphology, and…
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Development of PMMA composites with tungsten trioxide for improved gamma radiation shielding in microsatellites
Shield effectiveness
Figure 1 the linear attenuation coefficient (LAC) of PMMA/WO₃ composites demonstrates a clear enhancement with increasing WO3 concentration, particularly at photon energies below 1000 keV. This improvement is primarily due…
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Visible light active Cu(3−x)ZnxSnS4 for efficient photocatalytic degradation of brilliant green dye
CZTS photocatalyst powders with various Cu:Zn ratios were synthesized via a microwave-assisted method with an ethylene glycol solvent. The Cu:Zn molar ratio was either 1:2, 2:1, or 2.5: 0.5 with an excess of thiourea (as the source of sulfur) to…
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Synthesis of metal–organic framework functionalized macroscopic flow-through precipitate tubes
In this work our main goal was to design a reactor which enables the production and functionalization of flow-through precipitate tubes. During the synthesis of such precipitate tubes, one of the reactant solutions was filled into the reactor and…
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Design, spectroscopic analysis, DFT calculations, adsorption evaluation, molecular docking, comprehensive in silico and in vitro bioactivity studies of thiocarbohydrazide grafted dialdehyde cellulose nanobiosorbent
Materials’ design
Synthesis of dialdehyde cellulose (DAC)
The synthesis of DAC was accomplished by selective oxidation of the two adjacent secondary hydroxyl groups that are present on C2 and C3 in the glucopyranose units in cellulose chains,…
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Living fungus-based building material repairs itself for over a month
Engineers have developed a building material that uses the root-like mycelium of a fungus and bacteria cells. Their results, publishing April 16 in the Cell Press journal Cell Reports Physical Science, show that this material — which is…
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Scientists create a ‘brilliantly luminous’ nanoscale chemical tool
Imagine tiny building toy pieces that automatically snap together to form a strong, flat sheet. Then, scientists add special chemical “hooks” to these sheets to attach glowing molecules called fluorophores.
Associate Professor Gary Baker, Piyuni…
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