Aim: Investigated the self-assembly and characterization of novel antifouling polyethylene glycol (PEG)-coated iron oxide nanoparticles as nanoprobes for magnetic resonance imaging (MRI) contrast agent.
Method: Monodisperse oleic acid-coated superparamagnetic iron oxide cores are synthesized by thermal decomposition of iron oleate. The self-assembly behavior between iron oxide cores and PEG-lipid conjugates in water and their characteristics are confirmed by transmission electron microscope, X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, and vibrating sample magnetometer.
Result: Dynamic light scattering shows superparamagnetic iron oxide nanoparticles coated with PEG are stable in water for pH of 3-10 and ionic strengths up to 0.3 M NaCl, and are protein resistant in physiological conditions. Additionally, in vitro MRI study demonstrates the efficient magnetic resonance imaging contrast characteristics of the iron oxide nanoparticles.
Conclusion: The result indicates that the novel antifouling PEG-coated superparamagnetic iron oxide nanoparticles could potentially be used in a wide range of applications such as biotechnology, MRI, and magnetic fluid hyperthermia.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/03639041003710151 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Authentication of glass beads from Cultural Heritage: An interdisciplinary and multi-analytical approach.
Talanta
January 2025
Instituto de Historia (IH-CCHS), CSIC, C/ Albasanz 26-28, 28037, Madrid, Spain. Electronic address:
Analysis of glass-based artworks is important for authentication purposes. In recent years, there have been rapid advancements and improvements in the characterization of glass objects using different analytical approaches. The present study presents an interdisciplinary and multi-analytical authentication approach that provides useful tools and markers to unmask possible imitations, counterfeiting, and forgeries in Cultural Heritage glass beads by comparing the composition of historical and modern glass beads.
View Article and Find Full Text PDFComplete Aqueous Defluorination of GenX (Hexafluoropropylene Oxide Dimer Acid Anion) by Pulsed Electrolysis with Polarity Reversal.
ChemSusChem
January 2025
University of Rochester, Department of Chemical Engineering, ., 14627, Rochester, UNITED STATES OF AMERICA.
Article Synopsis
- PFAS are stable yet harmful chemicals, vital for modern technologies but persistent pollutants affecting health.
- The study focuses on completely breaking down GenX, a PFAS replacement, using electrocatalysis in LiOH solutions with specialized nanocatalysts.
- The approach is environmentally friendly, utilizing nonprecious materials and without the need for auxiliary chemicals, offering a potential solution to mitigate PFAS pollution.
Eco-friendly Synthesis of Iron Oxide Nanoparticles Using Parietaria alsinifolia Extracts and Evaluation of Biological Applications.
Appl Biochem Biotechnol
January 2025
Department of Plant Sciences, Faculty of Biological Sciences, Quaid-I-Azam University Islamabad, Islamabad, 45320, Pakistan.
The current research was conducted to synthesize Parietaria alsinifolia-mediated iron oxide nanoparticles (P.A@FeONPs) using the green and eco-friendly protocol. The biosynthesized P.
View Article and Find Full Text PDFSuperparamagnetic nanoparticles as potential systems for the treatment of Duchenne muscular dystrophy.
Nanoscale
January 2025
Department of Chemistry, Federal University of São Paulo (UNIFESP), Diadema, SP, Brazil.
This study aims to use superparamagnetic iron oxide nanoparticles (SPIONs), specifically magnetite (FeO), to deliver deflazacort (DFZ) and ibuprofen (IBU) to Duchenne muscular dystrophy-affected (DMD) mouse muscles using an external magnetic field. The SPIONs are synthesized by the co-precipitation method, and their surfaces are functionalized with L-cysteine to anchor the drugs, considering that the cysteine on the surface of the SPIONs in the solid state dimerizes to form the cystine molecule, creating the FeO-(Cys)-DFZ and FeO-(Cys)-IBU systems for tests. The FeO nanoparticles (NPs) were characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), and magnetic measurements.
View Article and Find Full Text PDFEnhanced Accumulation and Penetration of Magnetic Nanoclusters in Tumors Using an 8-Magnet Halbach Array Leads to Improved Cancer Treatment.
ACS Nano
January 2025
Department of Bioengineering, University of Pennsylvania, 210 S. 33rd Street, 435 Skirkanich Hall, Philadelphia, Pennsylvania 19104, United States.
Nanoparticles have gained attention as drug delivery vehicles for cancer treatment, but often struggle with poor tumor accumulation and penetration. Single external magnets can enhance magnetic nanoparticle delivery but are limited to superficial tumors due to the rapid decline in the magnetic field strength with distance. We previously showed that a 2-magnet device could extend targeting to greater tissue depths.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!