Copper complex of isatin Schiff base encapsulated in zeolite as active heterogeneous catalyst: an efficient protocol for the acetylation reaction

Copper (II) complex of 3-phenylimino-1,3-dihydro-indol-2-one encapsulated in the super cages of zeolite-Y has been synthesized by flexible ligand method and characterized by various physicochemical measurements. The catalytic activity of cationic exchanged zeolite, copper complex of ligand and complex encapsulated inside the zeolite was investigated for the decomposition of H2O2 and for the acetylation of p-cresol. All catalysts show good to excellent yield. The results showed that conversion of p-cresol varies in the order homogeneous complex \NaY-Zeolite\Cu-Y-Zeolite\heterogeneous comple

Hyaluronic Acid Nanomaterials in Targeted Drug Delivery for Cancer Therapy

Hyaluronic acid and the CD44 receptor have been the subject of 3D interaction and molecular analysis that has revealed crucial residues, binding specificity, stabilizing relationships, and structural insights within the complex. The analysis has focused on amino acid interactions. It is a crucial field of study with both fundamental and applied consequences because this understanding not only illuminates the molecular mechanisms directing their interaction but also shows promise for future therapeutic approaches. The new methods cover a variety of strategies, such as creating highly focused treatments, combining treatments with other well-known techniques like immunotherapy and chemotherapy, and moving toward customized medicine. Combining state-of-the-art nanotechnology with hyaluronan-based pharmaceuticals could improve lung cancer therapy's precision, bioavailability, and drug delivery. Clinical trials will be essential in proving these medicines' safety and effectiveness so that they may be incorporated into standard cancer treatment. Moreover, investigating immune regulation via hyaluronan may open up new avenues for bolstering the body's defenses against  cancer. With a calculated binding energy score of -6.70, the interaction between hyaluronan and the CD44 protein receptor was observed to be remarkably strong and favorable, suggesting a robust connection. This highlights the potential for utilizing hyaluronic nanomaterials to facilitate the targeted delivery of commercially available cancer drugs to specific cancer sites

Effects of slag content on the residual mechanical properties of ambient air-cured geopolymers exposed to elevated temperatures

This paper presents the effects of various slag contents on the residual compressive strength and physical properties of ambient air-cured fly ash-slag blended geopolymers after exposure to various elevated temperatures up to 800°C. The results showed an increasing trend in the compressive strength of ambient air-cured geopolymers with increase in the slag contents after exposure to 400 and 600°C temperatures. This trend deviated, however, at 800°C. Nevertheless, all the geopolymers showed reductions in control compressive strength at ambient temperature after exposure to elevated temperatures. The reductions were much higher at 600 and 800°C compared to 400°C. All the geopolymers exhibited significant damage in terms of cracking after exposure to a temperature of 800°C compared to 400 and 600°C and significant damage occurred at slag contents of 15–30%. Scanning electron microscopic (SEM) images of the above geopolymers also showed higher porosity at 800°C compared to 400 and 600°C. Traces of calcite/calcium silicate hydrate (CSH) peaks are observed in the X-ray diffraction (XRD) analysis of fly ash-slag geopolymers, and the intensity of those peaks increased with increases in slag contents. After exposure to elevated temperatures, the calcite/CSH peaks disappeared and new phases of nepheline and gehlenite were formed at 800°C in all the fly ash-slag geopolymers

One-pot fructose conversion into 5-ethoxymethylfurfural using a sulfonated hydrophobic mesoporous organic polymer as a highly active and stable heterogeneous catalyst

We report a sulfonated hydrophobic mesoporous organic polymer (MOP-SO3H) as a highly efficient heterogeneous catalyst for one-pot 5-ethoxymethylfurfural (EMF) production from fructose in ethanol solvent.</jats:p

Properties of Sol Gel Dip Coated ZnO Films

Abstract not Available.</jats:p