Publications by authors named "D Muraca"
Magnetic hyperthermia (MH) has emerged as a promising technology with diverse applications in medical and technological fields, leveraging the remote induction of temperature elevation through an alternating magnetic field. While FeO nanoparticles with an average size around 12-25 nm are commonly employed in MH systems, this study introduces a strategy to produce smaller particles (less than or equal to 10 nm) with enhanced heating efficiency, as measured by specific power absorption (SPA). We conducted an exhaustive and detailed investigation into the morphological and magnetic properties of CoFeO nanoparticles, aiming to optimize their MH response.
View Article and Find Full Text PDFAn essential part for crude oil extraction is flow assurance, being critical to maintain a financially sustainable flow while getting the petroleum to the surface. When not well managed, it can develop into a significant issue for the OG industry. By heating the fluids, problems with flow assurance, including paraffin deposition, asphaltene, and methane hydrate, can be reduced.
View Article and Find Full Text PDFTheoretical and micromagnetic simulation studies of magnetic nanospheres with vortex configurations suggest that such nanostructured materials have technological advantages over conventional nanosystems for applications based on high-power-rate absorption and subsequent emission. However, full experimental evidence of magnetic vortex configurations in spheres of submicrometer size is still lacking. Here, we report the microwave irradiation fabrication of FeO nanospheres and establish their magnetic vortex configuration based on experimental results, theoretical analysis, and micromagnetic simulations.
View Article and Find Full Text PDFArticle Synopsis
- Magnetic nanoparticles (MNps) have promising applications in biomedicine, such as drug delivery and MRI imaging, but their safety and potential toxicity remain under-researched due to varying surface modifications.
- The study focused on synthesizing citrate-coated magnetite nanoparticles (IONps) and assessed their toxic effects using both in vitro and in vivo models, finding that they did not significantly impact cell viability or cause adverse effects in animal testing.
- Despite a slight increase in iron levels in the liver, the nanoparticles demonstrated a simple and effective production method, showing potential as safe and effective drug delivery systems.
Purpose: This study aimed to evaluate the morphometric changes in the position of the mandibular condyles before and after orthognathic surgery.
Methods: A retrospective single-center cohort study was conducted and included patients with a presurgical (T1) and postsurgical (T2) Cone Beam computed tomography (CBCT). The primary predictor variable was the orthognathic surgical treatment.