Surface Modification of Magnetite with Carboxyl Arylated Gold Nanoparticles for Capture and Removal of Bacteria.

This study presents a novel synthesis method for fabricating magnetic-plasmonic FeO@CS-AuNPs nanocomposite utilizing aryldiazonium gold(III) salts. The low reduction potential of aryldiazonium gold salts enables their spontaneous reduction on the surface of FeO NPs stabilized with chitosan (CS), as CS facilitates the electron transfer process. The FeO@CS-AuNPs nanocomposite exhibited gold plasmon peaks at 525 nm in UV-vis spectra and demonstrated long shelf life in an aqueous solution, with a ζ-potential of -42.

Functional characterization and evolution of olfactory responses in coeloconic sensilla of the global fruit pest Drosophila suzukii.

Background: When a species changes its host preference, it often requires modifications in its sensory systems. Many of these changes remain largely uninvestigated in the global fruit pest Drosophila suzukii (also known as spotted wing Drosophila, SWD). This species, which shares a last common ancestor with the model organism D.

Ethnoracial disparities in gray matter atrophy are mediated by structural disconnectivity in multiple sclerosis.

Objective: To investigate ethnoracial disparities in gray matter (GM) atrophy, the contribution of white matter lesions and consequent structural disconnectivity among patients with multiple sclerosis (MS).

Methods: This retrospective study included 297 patients with MS (pwMS), 98 Hispanic/Latinx (H-MS), 82 non-Hispanic Black (B-MS), and 117 non-Hispanic White (W-MS). GM atrophy was assessed using univariate, voxel-based morphometry, and multivariate techniques, source-based morphometry.

Assessing the Risk of Antibiotic Resistance in Childhood Pneumonia: A Hospital-Based Study in Bangladesh.

Approximately two to three children die from pneumonia every hour, and pneumonia is the leading cause of hospitalization for children under five in Bangladesh. Bangladesh has adopted the Pocket Book guidelines by the World Health Organization (WHO) for hospital management of childhood pneumonia. These guidelines recommend the proper use of injectable antibiotic administration.