Electrophoretic deposition of chitosan/gelatin/hydroxyapatite nanocomposite coatings on 316 L stainless steel for biomedical applications.

In addition to the basic and main parts of hospital equipment, 316 L stainless steel is widely utilized in futures such as nails and screws, wires and medical bone clips, dental implants, heart springs (stents), needles, surgical scissors, etc. In the present study, the electrophoretic deposition of a composite based on chitosan (CS), gelatin, nano and microparticles of hydroxyapatite on a 316 L stainless steel substrate was investigated. Hydroxyapatite particles are added to it due to the ossification abilities of steel and due to an enhanced adhesion and bone production, CS and biocompatible gelatin polymer particles were also added to hydroxyapatite.

Pediatric asthma and COVID-19 vaccination: unveiling patterns of hesitancy and acceptance.

Background: The global COVID-19 pandemic, declared in January 2020, necessitated urgent preventive measures, with vaccination as a key strategy. Despite progress in vaccine development and distribution, widespread hesitancy persists, impeding global disease control efforts. This study specifically explores COVID-19 vaccine hesitancy and acceptance among Iranian children with asthma, aiming to understand factors unique to this subgroup.

Protein-Chlorogenic Acid Interactions: Mechanisms, Characteristics, and Potential Food Applications.

The interactions between proteins and chlorogenic acid (CGA) have gained significant attention in recent years, not only as a promising approach to modify the structural and techno-functional properties of proteins but also to enhance their bioactive potential in food systems. These interactions can be divided into covalent (chemical or irreversible) and non-covalent (physical or reversible) linkages. Mechanistically, CGA forms covalent bonds with nucleophilic amino acid residues of proteins by alkaline, free radical, and enzymatic approaches, leading to changes in protein structure and functionality, such as solubility, emulsification properties, and antioxidant activity.

Bimetal Cu/Ni-BTC@SiO metal-organic framework as high performance photocatalyst for degradation of azo dyes under visible light irradiation.

There has been significant attention on the efficient degradation of pollutants in wastewater using metal-organic frameworks (MOFs) photocatalytic methods over the past decade. Herein, we examined the elimination of two different types of water-contaminating dyes, specifically cationic dye methylene blue (MB) and anionic dye methyl orange (MO), through the application of bimetal Cu/Ni-BTC@SiO MOF as high performance photocatalyst. The bimetal Cu/Ni-BTC@SiO photocatalyst was synthesized and characterized by XRD, FTIR, SEM, TEM, TGA, BET, DRS, and VSM techniques.