Revolutionizing applications: the impact of controlled surface chemistry on marble powder.

A large amount of marble powder is abundantly available as a byproduct and waste in the marble industry, and its reinforcement has been attempted in several applications through surface modification. This article examines the use of MP in the production of rubber, paper, foam stabilizers, asphalt, paint, textiles, and adhesives. This article aims to provide a foundation for the surface modification of MP to enhance its properties and broaden its range of applications.

,-Dimethylaminoethyl methacrylate-based core/shell microgels loaded with silver nanoparticles for catalysis.

In this work, poly(styrene)@poly(-isopropylmethacrylamide--2-(,-dimethyl)aminoethyl methacrylate [p(sty)@p(NIPMAM-DMAEMA)] core/shell microgel particles were produced by a two-step free-radical precipitation polymerization process. Ag nanoparticles were successfully embedded inside the sieves of a crosslinked network by using silver nitrate as the precursor salt and NaBH as the reductant. The synthesized pure and hybrid microgels were analyzed by various characterization tools, including Fourier transform infrared (FTIR) and UV-visible (UV-vis) spectroscopies, transmission electron microscopy (TEM) and dynamic light scattering (DLS).

Accessing the synthesis of natural products and their analogues enabled by the Barbier reaction: a review.

The Barbier reaction is significantly referred to as one of the efficient carbon-carbon bond forming reactions which involves the treatment of haloalkanes and carbonyl compounds by utilizing the catalytic role of a diverse range of metals and metalloids. The Barbier reaction is tolerant to a variety of functional groups, allowing a broad substrate scope with the employment of lanthanides, transition metals, amphoteric elements or alkaline earth metals. This reaction is also water-resistant, thereby overcoming the challenges posed by moisture sensitive organometallic species involving C-C bond formation reactions.

Expression of concern: A well-defined S-g-CN/Cu-NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights.

Expression of concern for 'A well-defined S-g-CN/Cu-NiS heterojunction interface towards enhanced spatial charge separation with excellent photocatalytic ability: synergetic effect, kinetics, antibacterial activity, and mechanism insights' by Haya A. Abubshait , , 2022, , 3274-3286, https://doi.org/10.

Dye degradation and antimicrobial efficacy of cesium-doped YO nanostructures: docking study.

Developing multifunctional nanomaterials is crucial to rising global concerns over environmental contamination caused by dye effluents and antibiotic resistance. This work presents cesium (Cs)-doped YO nanostructures (NSs) as viable options for catalytic dye degradation and antibacterial action. This study prepared yttrium oxide (YO) and various (2, 4, and 6 wt%) concentrations of Cs-doped YO NSs co-precipitation technique.

Expression of concern: Engineering the optical properties of nickel sulphide thin films by zinc integration for photovoltaic applications.

Expression of concern for 'Engineering the optical properties of nickel sulphide thin films by zinc integration for photovoltaic applications' by Junaid Younus , , 2023, , 27415-27422, https://doi.org/10.1039/D3RA04011A.

Expression of concern: Designing a novel visible-light-driven heterostructure Ni-ZnO/S-g-CN photocatalyst for coloured pollutant degradation.

Expression of concern for 'Designing a novel visible-light-driven heterostructure Ni-ZnO/S-g-CN photocatalyst for coloured pollutant degradation' by Ali Bahadur , , 2021, , 36518-36527, https://doi.org/10.1039/d0ra09390d.

Molybdenum tungsten hydrogen oxide doped with phosphorus for enhanced oxygen/hydrogen evolution reactions.

The development of efficient electrocatalysts for hydrogen and oxygen evolution reactions (HER and OER) is pivotal for advancing cleaner and sustainable fuel production technologies. The conventional electrocatalysts have limited stability and higher overpotentials, and there is demand to explore advanced materials and synthesis methods. In this context, a novel bifunctional electrocatalyst has been devised through the phosphidation of tungsten molybdenum oxide (P-MoWHO) at relatively low temperatures.

Adsorption behavior of different cresols on bismuthene: a DFT study.

Phenolic compounds present in wastewater were utilized for first-principle calculations based on DFT to observe adsorption effects. Results indicate that bismuthene exhibits different adsorption characteristics for different compounds. Following the adsorption process, the aromatic ring remains in the same plane, while CH and OH groups move upward, causing slight changes in the molecules' overall position.

Surface-enhanced Raman spectroscopy for the study of interaction of an antibacterial agent ([bis(1,3-dipentyl-1-imidazol-2(3)-ylidene)silver(i)]bromide) with bacterial biofilms.

Bacterial resistance towards antibiotics is a significant challenge for public health, and surface-enhanced Raman spectroscopy (SERS) has great potential to be a promising technique to provide detailed information about the effect of antibiotics against biofilms. SERS is employed to check the antibacterial potential of a lab synthesized drug ([bis(1,3-dipentyl-1-imidazol-2(3)-ylidene)silver(i)] bromide) against and to analyze various SERS spectral features of unexposed and exposed strains by observing biochemical changes in DNA, protein, lipid and carbohydrate contents induced by the lab synthesized imidazole derivative. Further, PCA and PLS-DA are employed to differentiate the SERS features.

Development of novel transition metal-catalyzed synthetic approaches for the synthesis of a dihydrobenzofuran nucleus: a review.

The synthesis of dihydrobenzofuran scaffolds bears pivotal significance in the field of medicinal chemistry and organic synthesis. These heterocyclic scaffolds hold immense prospects owing to their significant pharmaceutical applications as they are extensively employed as essential precursors for constructing complex organic frameworks. Their versatility and importance make them an interesting subject of study for researchers in the scientific community.

Exploring the synthetic potential of epoxide ring opening reactions toward the synthesis of alkaloids and terpenoids: a review.

Epoxides are oxygen containing heterocycles which are significantly employed as crucial intermediates in various organic transformations. They are considered highly reactive three-membered heterocycles due to ring strain and they undergo epoxide ring opening reactions with diverse range of nucleophiles. Epoxide ring-opening reactions have gained prominence as flexible and effective means to obtain various functionalized molecules.

A novel investigation of pressure-induced semiconducting to metallic transition of lead free novel BaSbI perovskite with exceptional optoelectronic properties.

The structural, electronic, mechanical, and optical characteristics of barium-based halide perovskite BaSbI under the influence of pressures ranging from 0 to 10 GPa have been analyzed using first-principles calculations for the first time. The new perovskite BaSbI material was shown to be a direct band gap semiconductor at 0 GPa, but the band gap diminished when the applied pressure increased from 0 to 10 GPa. So the BaSbI material undergoes a transition from semiconductor to metallic due to high pressure at 10 GPa.

Hydrogenation of cyclohexene over single-atom Pt or Pd incorporated porous ceria nanoparticles under solvent-free conditions.

In order to maximize the utilization of noble metals in catalysis, single atom of palladium (Pd) and platinum (Pt) were incorporated individually in the framework of porous ceria (CeO) by using a one-step flash combustion method. Samples with different Pd and Pt loading (0.5, 1, 2.

Surface-enhanced Raman spectroscopy for characterization of filtrates of blood serum samples from patients with tuberculosis obtained by 50 kDa filtration devices.

The ability of surface-enhanced Raman spectroscopy (SERS) to generate spectroscopic fingerprints has made it an emerging tool for biomedical applications. The objective of this study is to confirm the potential use of Raman spectroscopy for early disease diagnosis based on blood serum. In this study, a total of sixty blood serum samples, consisting of forty from diseased patients and twenty (controls) from healthy individuals, was used.

Yolk-shell smart polymer microgels and their hybrids: fundamentals and applications.

Yolk-shell microgels and their hybrids have attained great importance in modern-day research owing to their captivating features and potential uses. This manuscript provides the strategies for preparation, classification, properties and current applications of yolk-shell microgels and their hybrids. Some of the yolk-shell microgels and their hybrids are identified as smart polymer yolk-shell microgels and smart hybrid microgels, respectively, as they react to changes in particular environmental stimuli such as pH, temperature and ionic strength of the medium.

A DFT investigation on structural, electronic, magnetic, optical, elastic and hydrogen storage properties of Ru-based hydride-perovskites XRuH (X = Cr, V, Ni).

The present investigation delves into various physical properties exhibited by CrRuH, VRuH and NiRuH. Notably adopting a stable cubic configuration, both compounds manifest a distinct metallic demeanor characterized by an absolute absence of band gap. In-depth analysis through Total Density of States (TDOS) and Partial Density of States (PDOS) justify this metallic conduct by distinctly showcasing peak conductivity at the Fermi level.

Recent developments, advances and strategies in heterogeneous photocatalysts for water splitting.

Photocatalytic water splitting (PWS) is an up-and-coming technology for generating sustainable fuel using light energy. Significant progress has been made in the developing of PWS innovations over recent years. In addition to various water-splitting (WS) systems, the focus has primarily been on one- and two-steps-excitation WS systems.

Surface-enhanced Raman spectroscopy for studying the interaction of organometallic compound bis(1,3-dihexylimidazole-2-yl) silver(i) hexafluorophosphate (v) with the biofilm of .

biofilms are a major cause of gastrointestinal tract diseases, such as esophageal, stomach and intestinal diseases. Nowadays, these are the most commonly occurring diseases caused by consuming contaminated food. In this study, we evaluated the efficacy of probiotics in controlling multidrug-resistant and reducing its ability to form biofilms.

Synthesis of anti-depressant molecules metal-catalyzed reactions: a review.

Depression is one of the most mutilating conditions in the world today. It has been difficult to make advancements toward better, more effective therapies since the introduction of antidepressant medicines in the late 1950s. One important field of medicinal chemistry is the synthesis of antidepressant molecules through metal-catalyzed procedures.