A mesoporous Mo and N Co-doped TiO nanocomposite with enhanced photocatalytic efficiency.

This study reports the synthesis of a mesoporous Mo and N codoped anatase TiO nanocomposite with many oxygen vacancies using a simple one-step hydrothermal method and subsequent calcination treatment. Both Mo and N were effectively co-incorporated into the anatase phase of TiO without MoO phase segregation. The codoped catalyst demonstrated a mesoporous architecture with a surface area of 107.

A database of computed Raman spectra of inorganic compounds with accurate hybrid functionals.

Raman spectroscopy is widely applied in identifying local structures in materials, but the interpretation of Raman spectra is non-trivial. An accurate computational database of reference spectra calculated with a consistent level of theory can significantly aid in interpreting measured Raman spectra. Here, we present a database of Raman spectra of inorganic compounds calculated with accurate hybrid functionals in density functional theory.

Therapeutic Management of Malignant Wounds: An Update.

Malignant fungating wounds (MFW) are severe skin conditions generating tremendous distress in oncological patients with advanced cancer stages because of pain, malodor, exudation, pruritus, inflammation, edema, and bleeding. The classical therapeutic approaches such as surgery, opioids, antimicrobials, and application of different wound dressings are failing in handling pain, odor, and infection control, thus urgently requiring the development of alternative strategies. The aim of this review was to provide an update on the current therapeutic strategies and the perspectives on developing novel alternatives for better malignant wound management.

A critical review on the recent trends of photocatalytic, antibacterial, antioxidant and nanohybrid applications of anatase and rutile TiO2 nanoparticles.

Titanium dioxide nanoparticles (TiO NPs) have become a focal point of research due to their widespread daily use and diverse synthesis methods, including physical, chemical, and environmentally sustainable approaches. These nanoparticles possess unique attributes such as size, shape, and surface functionality, making them particularly intriguing for applications in the biomedical field. The continuous exploration of TiO NPs is driven by the quest to enhance their multifunctionality, aiming to create next-generation products with superior performance.

The Influences of Nb Microalloying and Grain Refinement Thermal Cycling on Microstructure and Tribological Properties of Armox 500T.

This study aims to investigate the combined effect of niobium (Nb) microalloying and austenite grain refinement, using a specific heat treatment cycle, on the microstructure and tribological properties of Armox 500T steel. In this work, Nb addition and thermal cycling were utilized for grain refinement and enhancement of the mechanical properties of Armox 500T alloy, to provide improved protection via lightweight armor steel components with a high strength-to-weight ratio. The kinetics of transformation of the developed Armox alloys were studied using JMATPro version 13.

Expression of concern: Tin-zinc-oxide nanocomposites (SZO) as promising electron transport layers for efficient and stable perovskite solar cells.

Expression of concern for 'Tin-zinc-oxide nanocomposites (SZO) as promising electron transport layers for efficient and stable perovskite solar cells' by Ahmed E. Shalan , , 2019, , 2654-2662, DOI: https://doi.org/10.

Embedding of Laser Generated TiO in Poly(ethylene oxide) with Boosted Li Conduction for Solid-State Lithium Metal Batteries.

Poly(ethylene oxide) (PEO)-based solid polymer electrolytes are considered promising materials for realizing high-safety and high-energy-density lithium metal batteries. However, the high crystallinity of PEO at room temperature triggers low ionic conductivity and Li transference number, critically hindering practical applications in solid-state lithium metal batteries. Herein, we prepared nanosized TiO with enriched oxygen vacancies down to 13 nm as fillers by laser irradiation, which can be coated by in situ generated polyacetonitrile, ensuring good dispersibility in PEO.

Low-temperature CeCoMnO spinel-type catalysts prepared by oxalate co-precipitation for selective catalytic reduction of NO using NH: A structure-activity relationship study.

CeCoMnO spinel-type catalysts for the selective catalytic reduction of NO using NH (NH-SCR) are usually prepared by alkaline co-precipitation. In this paper, a series of CeCoMnO spinel-type catalysts with different calcination temperatures were prepared by acidic oxalate co-precipitation. The physicochemical structures and NH-SCR activities of the CeCoMnO spinel-type catalysts prepared by oxalate co-precipitation and conventional ammonia co-precipitation were systematically compared.

Expression of Concern: The controlled synthesis and DFT investigation of novel (0D)-(3D) ZnS/SiO heterostructures for photocatalytic applications.

Expression of Concern for 'The controlled synthesis and DFT investigation of novel (0D)-(3D) ZnS/SiO heterostructures for photocatalytic applications' by Mohamed F. Sanad , , 2021, , 22352-22364, https://doi.org/10.

Expression of Concern: Statistical optimization of photo-induced biofabrication of silver nanoparticles using the cell extract of : insight on characterization and antioxidant potentiality.

Expression of Concern for 'Statistical optimization of photo-induced biofabrication of silver nanoparticles using the cell extract of : insight on characterization and antioxidant potentiality' by Rasha A. Abo-Elmagd , ., 2020, , 44232-44246, DOI: https://doi.

Expression of concern: Synthesis and characterization of a new ZIF-67@MgAlO nanocomposite and its adsorption behaviour.

Expression of concern for 'Synthesis and characterization of a new ZIF-67@MgAlO nanocomposite and its adsorption behaviour' by Mehdi Davoodi , , 2021, , 13245-13255, https://doi.org/10.1039/D1RA01056E.

Expression of Concern: Convenient conversion of hazardous nitrobenzene derivatives to aniline analogues by Ag nanoparticles, stabilized on a naturally magnetic pumice/chitosan substrate.

Expression of Concern for 'Convenient conversion of hazardous nitrobenzene derivatives to aniline analogues by Ag nanoparticles, stabilized on a naturally magnetic pumice/chitosan substrate' by Reza Taheri-Ledari , , 2020, , 43670-43681, DOI: https://doi.org/10.1039/D0RA08376C.

Expression of Concern: Solid-state dye-sensitized solar cells based on ZnSnO nanocomposite photoanodes.

Expression of Concern for 'Solid-state dye-sensitized solar cells based on ZnSnO nanocomposite photoanodes' by Ayat Nasr El-Shazly , , 2018,, 24059-24067, DOI: https://doi.org/10.1039/c8ra02852d.

Bio-functionalized nanocolloids of ZnS quantum dot/amine-rich polypeptides for bioimaging cancer cells with antibacterial activity: "".

Among almost 200 types of cancers, glioma is considered one of the most common forms of malignant tumors located in the central nervous system (CNS). Glioblastoma (GBM), one of the deadliest types of brain cancer, remains one of the challenges faced by oncologists. Thus, smartly designed nanomaterials biofunctionalized with polypeptides can offer disruptive strategies relying on the earliest possible diagnosis ("") combined with more efficient therapies for fighting cancer cells.

Manufacturing of Aluminum Nano-Composites Reinforced with Nano-Copper and High Graphene Ratios Using Hot Pressing Technique.

In this study, the nano-aluminum powder was reinforced with a hybrid of copper and graphene nanoplatelets (GNPs). The ratios of GNPs were 0 wt%, 0.4 wt%, 0.

Experimental Investigation on Machinability of α/β Titanium Alloys with Different Microstructures.

In the current study, Ti-6Al-4V (Ti64) and Ti-6Al-7Nb (Ti67) alloys were prepared by vacuum arc melting. The produced samples were then subjected to different heat treatment regimes. The evolved microstructures and their corresponding hardness were investigated.

Controlled plasmon-induced nonlinear absorption and optical limiting in Al/PVP composite nanofibers.

The effect of aluminum (Al) concentration on the surface plasmon resonance (SPR) band position of aluminum/polyvinylpyrrolidone (Al/PVP) composite nanofibers was investigated to strengthen nonlinear absorption (NLA) and widen its spectral range. With increasing Al content in PVP nanofibers, the SPR band was shifted towards excitation wavelength and an improved NLA response was achieved. The NLA response was examined both experimentally, by conducting -scan experiments, and theoretically, using two models.

Advancements and sustainable strategies for the treatment and management of wastewaters from metallurgical industries: an overview.

Metallurgy is pivotal for societal progress, yet it yields wastewater laden with hazardous compounds. Adhering to stringent environmental mandates, the scientific and industrial sectors are actively researching resilient treatment and disposal solutions for metallurgical effluents. The primary origins of organic pollutants within the metallurgical sector include processes such as coke quenching, steel rolling, solvent extraction, and electroplating.

Expression of Concern: Concordantly fabricated heterojunction ZnO-TiO nanocomposite electrodes a co-precipitation method for efficient stable quasi-solid-state dye-sensitized solar cells.

Expression of concern for 'Concordantly fabricated heterojunction ZnO-TiO nanocomposite electrodes a co-precipitation method for efficient stable quasi-solid-state dye-sensitized solar cells' by Ahmed Esmail Shalan , , 2015, , 103095-103104, DOI: 10.1039/C5RA21822E.

Expression of concern: Cobalt metal-organic framework-based ZIF-67 for the trace determination of herbicide molinate by ion mobility spectrometry: investigation of different morphologies.

Expression of concern for 'Cobalt metal-organic framework-based ZIF-67 for the trace determination of herbicide molinate by ion mobility spectrometry: investigation of different morphologies' by Mehdi Davoodi , , 2021, , 2643-2655, DOI: https://doi.org/10.1039/D0RA09298C.

Tree-rings analysis to reconstruct atmospheric mercury contamination at a historical mining site.

Mercury (Hg) is a global environmental concern due to its toxicity (especially high in methylated form) and the long-range distribution of its gaseous elemental form (GEM). Hg-contaminated areas, such as abandoned mining sites, pose intrinsic difficulties for their management and heavy monitoring costs. In these environments, plant-based solutions may play a key role in the ecosystem quality assessment and support remediation strategies, combining reliability and cost-effectiveness.

Evolutions of Cube ({001}<100>) and {115}<161> Orientations in Cold-Rolled Ultra-Thin Non-Oriented Silicon Steel.

In this study, the evolutions of Cube and {115}<161> orientations of a cold-rolled ultra-thin non-oriented silicon steel were investigated using a combination of experimental investigation and the crystal plasticity finite element method (CPFEM). The results show that Cube orientations remain relatively stable when their initial deviation angles from the ideal Cube orientation are less than 12°, even after a 60% cold rolling reduction. However, larger deviations occur due to higher strain near grain boundaries.

Lead, Cadmium, and Arsenic in Raw Cow's Milk in a Central Andean Area and Risks for the Peruvian Populations.

Milk and its derivatives are basic foods in Peru, especially for children. The Junín region, in the central Andes, is one of the leading dairy basins. However, the safety of milk is affected by mining-metallurgical activities, wastewater dumping, organic residues, and inappropriate use of organophosphate fertilizers in agriculture whose contaminants reach the food chain, putting human health at risk.