Lung cancer remains one of the most widespread and difficult-to-treat malignancies, with current treatments approaches often lacking specificity and resulting in significant off-target toxicity. Nanoparticle-based drug delivery systems (DDS) have emerged as a promising strategy to overcome these limitations. Hexagonal boron nitrides (h-BN) nanoparticles (NPs) have gained attention due to their high photothermal (PT) conversion efficiency and versatile surface functionalization capabilities, making them attractive candidates for targeted cancer therapy.
View Article and Find Full Text PDFThe electrochemical nitrogen reduction reaction (NRR) offers a sustainable route to ammonia production under ambient conditions but remains limited by inert N ≡ N bond activation and competitive hydrogen evolution reaction (HER). Herein, we employ first-principles density functional theory (DFT) to systematically investigate the NRR activity of graphyne (GY) doped with single-atom transition metals (Fe, Mo, Ru, W). Structural analysis reveals strong binding and minimal distortion of the TM dopants on the porous, π-conjugated GY scaffold, with Fe-GY and W-GY exhibiting the highest stability.
View Article and Find Full Text PDF5, 10, 15, 20-tetrakis(4-methoxyphenyl)porphyrin (TMPP) was synthesized and subsequently metallized with cobalt(II) to form Co(II)TMPP. This complex was then immobilized onto a chitosan (CTS) support, resulting in the composite Co(II)TMPP@CTS, which was utilized for the degradation of methylene blue (MB) in aqueous solutions. Fourier-transform infrared spectroscopy (FT-IR) confirmed strong coordination between cobalt metal and nitrogen atoms within the chitosan matrix.
View Article and Find Full Text PDFIn this work, a novel isatin-Schiff base L2 had been synthesized through a simple reaction between isatin and 2-amino-5-methylthio-1,3,4-thiadiazole. The produced Schiff base L2 was then subjected to a hydrothermal reaction with cerium chloride to produce the cerium (III)-Schiff base complex C2. Several spectroscopic methods, including mass spectra, FT-IR, elemental analysis, UV-vis, C-NMR, H-NMR, Thermogravimetric Analysis, HR-TEM, and FE-SEM/EDX, were used to completely characterize the produced L2 and C2.
View Article and Find Full Text PDFSulfite is a very important species, affecting human health, plant and animal life, and environmental sustainability. In this study, for the first time, an ionophore-based ion-selective optode was constructed for hydrogen sulfite determination in beverages, such as Birell® and Sprite®, water, and soil samples; instead of normal pH-chromoionophores, polyaniline film was precipitated on a glass slide and used for the transduction of the sensation mechanism. The ionophore-modified polyaniline-based optode incorporated thiourea derivative as an ionophore and tridodecyl methyl ammonium chloride as an ion-exchanger.
View Article and Find Full Text PDFBackground: The status of heavy metals in children with lower urinary tract pathology that may harm the upper tract, e.g., neuropathic bladder and posterior urethral valve and its relationship with oxidative stress has not been adequately investigated.
View Article and Find Full Text PDFBio-matrix of rice husk and Mobil Composition of Matter No. 41 (MCM-41) was modified with alizarin red S for preconcentration of Pd prior flame atomic absorption spectrometric determination. The prepared bio-matrix (RH@MCM-41@ARS) was characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope, energy dispersive X-ray spectrometer (SEM/EDX) and surface area studies.
View Article and Find Full Text PDF