iron oxide nanoparticles cationic polymer

Superparamagnetic Iron Oxide Nanoparticle-Based …

2021-9-17 · The cationic liposomes composed of N,N-dioleylglutamide were complexed with siRNAs to form lipoplexes, which subsequently mixed with cationic iron oxide nanoparticles (CombiMAG) . In the presence of an external magnetic field, intracellular uptake of lipoplexes/iron oxide nanoparticles mostly occurs within 30 min, while intracellular delivery ...

Stabilization of Iron Oxide Nanoparticles in High Sodium ...

2021-3-11 · A series of sulfonated random and block copolymers were adsorbed on the surface of ∼100 nm iron oxide (IO) nanoparticles (NPs) to provide colloidal stability in extremely concentrated brine composed of 8% wt NaCl + 2% wt CaCl2 (API brine; 1.4 M NaCl + 0.2 M CaCl2) at 90 °C. A combinatorial materials chemistry approach, which employed Ca2+ …

Surfactant-free, lipo-polymersomes stabilized by iron ...

The LPPs are designed to conceal the cationic lipids and plasmid DNA inside the core along with iron oxide nanoparticles/polymer interlayer and a relatively neutral lipid shell to avoid the undesired interaction during circulation, leading to high accumulation in the tumors of mice. Furthermore, guided by an external magnetic field and the ...

Silica coating of iron oxide magnetic nanoparticles by ...

2021-2-20 · Iron oxide nanoparticles (IONPs) have previously been demonstrated as a platform for antibiotic drug carriers in biomedicine. In this work, a new approach has been envisioned to improve the colloidal stability of IONPs in aqueous media as well as drug-nanoparticle interactions through the surface modification with poly[N-isopropylacrylamide-co-(3-acrylamidopropyl) …

Polyisobutylene Oligomers as Tools for Iron Oxide ...

2021-3-12 · A series of terminally functionalized polyisobutylene (PIB) derivatives were synthesized and tested as agents for magnetic nanoparticle solubilization. PIB-bound catechol was found to be the best functionalized polyolefin at effecting such solubilization based on UV–vis spectroscopic absorbance measurements and thermogravimetric analysis. The PIB-modified magnetic nanoparticles …

Direct Control of the Magnetic Interaction between Iron ...

2019-5-25 · Cationic superparamagnetic iron oxide nanoparticles were assembled using a series of anionic polyamidoamine dendrimers. The resulting assemblies featured systematically increasing average interparticle spacing over a 2.4 nm range with increasing dendrimer generation. This increase in spacing modulated the collective magnetic behavior by effective …

Polycaprolactone-coated superparamagnetic iron oxide ...

2020-6-15 · 1. Introduction. Superparamagnetic iron oxide nanoparticles (SPIONs) have exhibited a propitious opportunity in biomedical applications from magnetic resonance imaging to drug delivery and magnetic hyperthermia therapy (MHT), owing to their promising therapeutic and diagnostic capabilities, particular, MHT is performed through infusion of SPION nanofluids …

POLYMER-COATED IRON OXIDE MAGNETIC …

2012-1-2 · 21. – 23. 9. 2011, Brno, Czech Republic, EU POLYMER-COATED IRON OXIDE MAGNETIC NANOPARTICLES – PREPARATION AND CHARACTERIZATION Petra BUSINOVA a, Jana CHOMOUCKA, Jan PRASEK, Radim HRDY a, Jana DRBOHLAVOVA ba, Petr SEDLACEK and Jaromir HUBALEK a a Brno University of Technology, Department of …

(PDF) In Vitro Antimicrobial Activity of Polyacrylamide ...

This paper addresses the antimicrobial activity of cationic polymer doped iron oxide nanoparticles at in vitro level. Magnetic iron oxide nanoparticles were prepared in simple procedure and then ...

Superparamagnetic Iron Oxide Nanoparticle-Based …

2  · The cationic liposomes composed of N,N-dioleylglutamide were complexed with siRNAs to form lipoplexes, which subsequently mixed with cationic iron oxide nanoparticles (CombiMAG) . In the presence of an external magnetic field, intracellular uptake of lipoplexes/iron oxide nanoparticles mostly occurs within 30 min, while intracellular delivery ...

Cationic Polymer-Coated Magnetic Nanoparticles with ...

Uniformly sized magnetite nanoparticles (Dn = 16 nm) were prepared by a thermal decomposition of Fe(III) oleate in octadec-1-ene and stabilized by oleic acid. The particles were coated with Sipomer PAM-200 containing both phosphate and methacrylic groups available for the attachment to the iron oxide and at the same time enabling (co)polymerization of 2-(dimethylamino)ethyl …

Bare Iron Oxide Nanoparticles as Drug Delivery Carrier …

2021-4-24 · avoiding toxicity [1,3–6] Z. Superparamagnetic iron oxide nanoparticles (IONs), also known as magnetite/maghemite or magnetic nanoparticles (MNP), are especially in the focus of this research field due to their non-remanent behavior, …

Functionalized polymer-iron oxide hybrid nanofibers ...

2017-6-15 · Further, interactions between cationic surfactants and iron oxide nanoparticles in electrospinning precursor solutions may improve nanoparticle dispersion (Gong et al., 2000, Gupta and Gupta, 2005) and, in turn, increase their available reactive surface area in …

Journal of Materials Chemistry B

This study evaluates the efficiency of novel non-viral vectors consisting of super paramagnetic iron oxide nanoparticles functionalized with the chemically tunable cationic polymer for in vitro ...

The composition and end-group functionality of sterically ...

Here we show the simple and robust generation of non-toxic, 10–15 nm superparamagnetic iron oxide nanoparticles (SPIONs) that have been sterically stabilized by either anionic or cationic or neutral end-functionalized steric stabilizers or by novel combinations of cationic and neutral end-functionalized polymer. When these ...

Comprehensive analysis of the in vitro and ex ovo ...

2017-4-4 · A set of biomedically relevant iron oxide nanoparticles with systematically modified polymer surfaces was investigated regarding their interaction with the first contact partners after systemic administration such as blood cells, blood proteins, and the endothelial blood vessels, to establish structure–activity relationships. All nanoparticles were intensively characterized …

In Vitro Antimicrobial Activity of Polyacrylamide Doped ...

2015-2-13 · The antimicrobial activity of cationic polymer doped iron oxide nanoparticles was evaluated. The prepared polyacrylamide doped magnetic iron oxide nanoparticles exhibited antimicrobial activity against Escherichia coli. The study suggests that cationic polymer doped magnetic iron oxide nanoparticles have excellent bactericidal property and are ...

Chemically tunable cationic polymer-bonded magnetic nano…

2021-9-6 · Cationic Polymer-Coated Magnetic Nanoparticles with ... antibacterial magnetic nanoparticles based on iron oxides could overcome pathogen''s multi-drug resistibility inhibiting bacterial growth [12,13]. ... Many materials and methods have been already described for iron oxide synthesis

The design and utility of polymer-stabilized iron-oxide ...

2010-1-21 · Iron-oxide nanoparticles (IONPs) represent a significant class of inorganic nanomaterial that is contributing to the current revolution in …

Superparamagnetic Iron Oxide Nanoparticles-Complexed ...

Superparamagnetic Iron Oxide Nanoparticles-Complexed Cationic Amylose for In Vivo Magnetic Resonance Imaging Tracking of Transplanted Stem Cells in Stroke Nanomaterials (Basel) . 2017 May 10;7(5):107. doi: 10.3390/nano7050107.

Surfactant‐Free, Lipo‐Polymersomes Stabilized by Iron ...

2013-7-18 · The LPPs are designed to conceal the cationic lipids and plasmid DNA inside the core along with iron oxide nanoparticles/polymer interlayer and a relatively neutral lipid shell to avoid the undesired interaction during circulation, leading to high accumulation in the tumors of mice. Furthermore, guided by an external magnetic field and the ...

A simple and efficient method for polymer coating of iron ...

2020-2-1 · 1. Introduction. Iron oxide nanoparticles (IONP) have been proposed for many biomedical uses including as MRI contrast agents, as a potential route to generate hyperthermia for cancer treatment, and for various drug and nucleic acid delivery systems [1,2].IONP have also been proposed as marking and tracking moieties for cells [3,4].For these different applications, a variety of nanoparticle ...

Cationic Polymer-Coated Magnetic Nanoparticles with ...

2021-9-6 · Cationic Polymer-Coated Magnetic Nanoparticles with ... antibacterial magnetic nanoparticles based on iron oxides could overcome pathogen''s multi-drug resistibility inhibiting bacterial growth [12,13]. ... Many materials and methods have been already described for iron oxide synthesis

Biodegradable polymer iron oxide nanocomposites: the ...

2015-11-26 · Biodegradable polymer iron oxide nanoparticles are promising for applications to many areas of medicine. Go to: ... biodegradable cationic polymers and anionic nucleic acids as an enabling technology to turn on and off genes in a spatially controlled and temporally controlled manner is highly attractive to combat many human diseases in new ways ...

Bare Iron Oxide Nanoparticles as Drug Delivery Carrier for ...

Iron oxide nanoparticles (IONs) can increase the drugs'' biological activity through high binding efficiency and magnetically targeted drug delivery. Understanding the adsorption and release process of a drug to the carrier material plays a significant role in research to generate an applicable and controlled drug delivery system.

Silica Coating of Iron Oxide Magnetic Nanoparticles by ...

2021-2-1 · Silica Coating of Iron Oxide Magnetic Nanoparticles by Reverse Microemulsion Method and their Functionalization with Cationic Polymer P(NIPAm-co-AMPTMA) for Antibacterial Vancomycin Immobilization Colloids and Surfaces A: Physicochemical and Engineering Aspects ( IF 4.539) Pub Date : 2021-02-01, DOI: 10.1016/j lsurfa.2020.125857

Chemically tunable cationic polymer-bonded magnetic ...

This study evaluates the efficiency of novel non-viral vectors consisting of super paramagnetic iron oxide nanoparticles functionalized with the chemically tunable cationic polymer for in vitro gene magnetofection.

Synthesis of cationic magnetic nanoparticles and ...

Well-defined cationic polymers were synthesized via the reversible addition fragmentation chain transfer polymerization and were subsequently used as stabilizer for the synthesis of cationic iron-oxide magnetic nanoparticles via the coprecipitation method. The surface-coated iron-oxide nanoparticles made stable suspension in water and were ...

Synthesis and Characterization of Polymer-Templated ...

2015-2-1 · The objective of this thesis is to design polymer coated magnetite nanoparticles with polymers that are biocompatible and can stabilize the iron oxide nanoparticle to help create mono-dispersed particles in solution. It is desirable to also have these nanoparticles possess high magnetic susceptibility in response to an applied magnetic field ...