Publications by authors named "S J Royer"
Effector genes of type III secretion system and biofilm formation in virulent isolates carrying and genes in hospital environment.
J Med Microbiol
January 2025
In critically ill patients, the occurrence of multidrug-resistant infection is a significant concern, given its ability to acquire multidrug-resistant, form biofilms and secrete toxic effectors. In Brazil, limited data are available regarding the prevalence of dissemination, and the impact of the type III secretion system (T3SS) on toxin production and biofilm formation in clinical isolates of . This study investigates the dissemination of virulent harbouring the and genes, the presence of T3SS genes and their biofilm-forming capability.
View Article and Find Full Text PDFEvaporation-Induced Reticular Growth of UiO-66_NH in Chitosan Films: Adsorption of Iodine.
ACS Appl Mater Interfaces
January 2025
Metal-organic frameworks (MOFs) combined with polymers as hybrid materials offer numerous advantages such as enhanced performances through synergistic effects at their interface. The primary challenge in developing polymer/MOF hybrid matrix films is ensuring optimal dispersion and strong adhesion of crystalline MOFs to the polymer without aggregation, weak interaction, or phase separation. In this study, hierarchically porous UiO-66_NH/chitosan (ZrCSx-) films were designed by crystallizing UiO-66_NH within a chitosan (CS) skeleton.
View Article and Find Full Text PDFArticle Synopsis
- Researchers are tackling the challenge of creating functional materials that direct heat flow in specific ways to improve thermal management.
- They used a technique called spatiotemporally resolved thermoreflectance to study how heat moves in supercrystals made from anisotropic gold (Au) nanocrystals, finding that heat flows more easily along the long axis of these nanocrystals.
- By adjusting the shape of the nanocrystals, they demonstrated increased control over heat directionality, and they used simulations to understand this behavior, offering insights for future applications in thermal management technologies.
Article Synopsis
- Anthropogenic litter, specifically plastic, significantly impacts ecosystems, and scientists from various fields are working together to assess and reduce these pollutants.
- The research aimed to determine the best methods for monitoring macroplastic litter in rivers and oceans by surveying 46 researchers who evaluated different techniques such as visual census, drone surveys, satellite imagery, and GPS/GNSS trackers.
- Results indicated that traditional visual census and drone use were the most favored methods (scoring 3.5 and 2.0), while satellite imagery and GPS trackers were less effective due to validation challenges and range limitations, with scores below 1.2.
Introduction: Multi-drug-resistant (MDR) Pseudomonas aeruginosa is a dangerous pathogen causing nosocomial infection, particularly in low- and middle-income countries like Brazil. This retrospective study at a Brazilian university hospital examined the relationship between antimicrobial use and MDR-P. aeruginosa.
View Article and Find Full Text PDF