Charge effect of superparamagnetic iron oxide nanoparticles on their surface functionalization by photo-initiated chemical vapour deposition

  title={Charge effect of superparamagnetic iron oxide nanoparticles on their surface functionalization by photo-initiated chemical vapour deposition},
  author={Taraneh Javanbakht and Sophie Laurent and Dimitri Stanicki and Wendell Raphael and Jason Robert Tavares},
  journal={Journal of Nanoparticle Research},
Diverse applications of superparamagnetic iron oxide nanoparticles (SPIONs) in the chemical and biomedical industry depend on their surface properties. In this paper, we investigate the effect of initial surface charge (bare, positively and negatively charged SPIONs) on the resulting physicochemical properties of the particles following treatment through photo-initiated chemical vapour deposition (PICVD). Transmission electron microscopy shows a nanometric polymer coating on the SPIONs and… 

Relating the Surface Properties of Superparamagnetic Iron Oxide Nanoparticles (SPIONs) to Their Bactericidal Effect towards a Biofilm of Streptococcus mutans

While the surface charge of SPIONS was important in determining their biological activity, the initial surface charge was not constant in the presence of the biofilm, leading eventually to SPIONS with fairly similar surface charges in situ.

Related physicochemical, rheological, and dielectric properties of nanocomposites of superparamagnetic iron oxide nanoparticles with polyethyleneglycol

In this study, we present the physicochemical, rheological, and dielectric properties of the superparamagnetic iron oxide nanoparticles (SPIONs) coated with polyethyleneglycol (PEG). It was observed

Chemical vapor deposition and its application in surface modification of nanoparticles

Nanomaterial has diverse applications in electronics, catalysis, energy, materials chemistry and even biology due to the special properties endowed by their high specific surface ratio. However,

Rheological and physical properties of a nanocomposite of graphene oxide nanoribbons with polyvinyl alcohol

In this work, the physicochemical and rheological properties of a nanocomposite of graphene oxide (GO) and thermoplastic polyvinyl alcohol (PVA) are reported. After adding deionized water to PVA, the

Polyethylene glycol and poly(vinyl alcohol) hydrogels treated with photo-initiated chemical vapor deposition

This study was designed to determine if surface modification via photo-initiated chemical vapor deposition (PICVD) affects the physicochemical properties of polyethylene glycol (PEG) and poly(vinyl

Kinetics, Chemistry, and Morphology of Syngas Photoinitiated Chemical Vapor Deposition.

The nature of the photoinitiated chemical vapor deposition of films made from syngas using high-wavelength ultraviolet light is discussed, including an exploration of the oligomeric films' structure, synthesis mechanism, and growth kinetics.

Correlation between physicochemical properties of superparamagnetic iron oxide nanoparticles and their reactivity with hydrogen peroxide

The present study focuses on the effects of the physicochemical properties of superparamagnetic PEG-modified, positively charged, and negatively charged iron oxide nanoparticles (SPIONs) on their r...

Gas-Phase Surface Engineering of Polystyrene Beads Used to Challenge Automated Particle Inspection Systems

Container challenge sets, used in the qualification and validation of automated visible particle inspection systems in the parenteral drug industry, are prepared by seeding a single standardized

Photo Initiated Chemical Vapour Deposition To Increase Polymer Hydrophobicity

This work treats HDPE and polyethylene terephthalate with a superhydrophobic coating using photo-initiated chemical vapour deposition (PICVD) and finds that water ingress was, surprisingly, higher than that for nets with a lower contact angle.



Silane Ligand Exchange to Make Hydrophobic Superparamagnetic Nanoparticles Water-Dispersible

Ferrite magnetic nanoparticles (MNPs) were functionalized with a variety of silanes bearing different functional endgroups to render them stable with respect to aggregation and keep them

Heterobifunctional PEG Ligands for Bioconjugation Reactions on Iron Oxide Nanoparticles

The synthesis of a novel polyethylene glycol-based ligand that combines multiple advantageous properties for biomedical applications and significantly improves the colloidal stability of the particle in complex environments is reported.

Synthesis and magnetic properties of a superparamagnetic nanocomposite pectin-magnetite nanocomposite

Magnetic nanocomposites composed of superparamagnetic magnetite nanoparticles in a pectin matrix were synthesized by an in situ coprecipitation method. The pectin matrix acted as a stabilizer and

Tumor selectivity of stealth multi-functionalized superparamagnetic iron oxide nanoparticles.

Synthesis of core-shell gold coated magnetic nanoparticles and their interaction with thiolated DNA.

The synthesis and characterization of bimetallic nanoparticles containing a magnetic core and a gold shell are discussed, and the functionalization of the magnetic nanoparticles is demonstrated through the conjugation of thiolated DNA to the gold shell.

Evaluation of iron oxide nanoparticle biocompatibility

In vivo exploration suggests that although γ-Fe2O3 nanoparticles are rapidly cleared through the urine, they can lead to toxicity in the liver, kidneys and lungs, while the brain and heart remain unaffected.

Bio-functionalization of magnetite nanoparticles using an aminophosphonic acid coupling agent: new, ultradispersed, iron-oxide folate nanoconjugates for cancer-specific targeting

Cell-uptake behaviors of nanoparticles, studied using magnetically activated cell sorting (MACS), clearly demonstrated that cells over-expressing the human folate receptor internalized a higher level of these nanoparticle–folate conjugates than negative control cells.

Clicking graphene oxide and Fe3O4 nanoparticles together: an efficient adsorbent to remove dyes from aqueous solutions

  • Mina NamvariH. Namazi
  • Chemistry, Materials Science
    International Journal of Environmental Science and Technology
  • 2014
Abstract Nanohybrid of graphene oxide (GO) and azide-modified Fe3O4 nanoparticles (NPs) were fabricated using click reaction. First, Fe3O4 NPs were modified by 3-azidopropionic acid. Then,

Controlling transport and chemical functionality of magnetic nanoparticles.

Common synthetic routes for making and functionalizing magnetic nanoparticles are described and initial applications in magnetic field induced separations are discussed and a range of reactive termini can be used to append arange of chemical groups.