scholarly journals Magnetite (Fe3O4) - Synthesis, Functionalization and its Application

2018 ◽  
Vol 3 (2) ◽  
pp. 64 ◽  
Author(s):  
Aneela Hameed ◽  
Hafiza Mehvish Mushtaq ◽  
Majid Hussain
Keyword(s):  
Magnetic Nanoparticles ◽  
Food Samples ◽  
Iron Oxide Nanoparticle ◽  
Synthesis Of Nanoparticles ◽  
Affinity Probe ◽  
Inorganic Substances ◽  
Magnetite Fe3o4 ◽  
Removal Of Heavy Metals ◽  
Oxide Nanoparticle ◽  
Paramagnetic Properties

<p>Nanoparticles are smaller than 100nm. Size of particle depends upon the method that is used for synthesis of nanoparticles. Magnetic nanoparticles consist of iron, cobalt and nickel and their chemical compounds. Their safety or toxicity is major concern for use in food. Magnetite, hematite and meghemite are types of magnetic nanoparticles. Magnetite (Fe3O4) common among the magnetic iron oxide nanoparticle that is used in food industry. Magnetite is getting popular due to its super paramagnetic properties and lack of toxicity to humans. Different methods are used to synthesize magnetic nanoparticles. Upon contact with air these particles loses magnetism and mono-dispersibility. To overcome this problem these nanoparticles are coated with natural or synthetic polymers, metals, organic and inorganic substances to create stable and hydrophilic nanostructures. Due to easy separation with magnet these magnetic nanoparticles are used as an affinity probe to remove bacteria from different food samples and have food related applications e.g, protein purification, enzyme immobilization and food analysis. These magnetic nanoparticles also used for removal of heavy metals and used in medical field.</p>

Magnetic nanoparticles adapted for specific biomedical applications

2015 ◽  
Vol 60 (5) ◽  
Author(s):  
Silvio Dutz ◽  
Robert Müller ◽  
Dietmar Eberbeck ◽  
Ingrid Hilger ◽  
Matthias Zeisberger
Keyword(s):  
Crystal Structure ◽  
Magnetic Nanoparticles ◽  
Biomedical Applications ◽  
Size Range ◽  
Nanoparticle Synthesis ◽  
Iron Oxide Nanoparticle ◽  
Particle Type ◽  
Particle Properties ◽  
Oxide Nanoparticle ◽  
Specific Particle

AbstractMagnetic nanoparticles (MNPs) are used in different biomedical applications, whereby each application requires specific particle properties. To fulfill these requirements, particle properties have to be optimized by means of variation of crystal structure, particle size, and size distribution. To this aim, improved aqueous precipitation procedures for magnetic iron oxide nanoparticle synthesis were developed. One procedure focused on the cyclic growth of MNPs without nucleation of new particle cores during precipitation. The second novel particle type are magnetic multicore nanoparticles, which consist of single cores of approximately 10 nm forming dense clusters in the size range from 40 to 80 nm. Their highest potential features these multicore particles in hyperthermia application. In our

scholarly journals Cocaine analogue conjugated magnetic nanoparticles for labeling and imaging dopaminergic neurons

2020 ◽  
Vol 8 (15) ◽  
pp. 4166-4175
Author(s):  
Mike Jeon ◽  
Guanyou Lin ◽  
Zachary R. Stephen ◽  
Josey E. Vechey ◽  
Manjot Singh ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Contrast Enhancement ◽  
Dopamine Transporter ◽  
Dopaminergic Neurons ◽  
Iron Oxide Nanoparticle ◽  
Term Stability ◽  
Long Term Stability ◽  
Oxide Nanoparticle

An iron oxide nanoparticle conjugated with a cocaine analogue exhibits small size and long-term stability with the ability to target dopamine transporter-expressing neurons and provides excellent contrast enhancement under MRI, demonstrating great potential for neuroimaging.

scholarly journals Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration

2021 ◽  
Author(s):  
Stephan Müssig ◽  
Björn Kuttich ◽  
Florian Fidler ◽  
Daniel Haddad ◽  
Susanne Wintzheimer ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Light Scattering ◽  
Superparamagnetic Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticles ◽  
X Ray ◽  
X Ray Scattering ◽  
Nanoparticle Dispersions ◽  
Oxide Nanoparticle

The controlled agglomeration of superparamagnetic iron oxide nanoparticles (SPIONs) was used to rapidly switch their magnetic properties. Small-angle X-ray scattering (SAXS) and dynamic light scattering showed that tailored iron oxide...

scholarly journals A critical review of synthesis parameters affecting the properties of zinc oxide nanoparticle and its application in wastewater treatment

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
E. Y. Shaba ◽  
J. O. Jacob ◽  
J. O. Tijani ◽  
M. A. T. Suleiman
Keyword(s):  
Zinc Oxide ◽  
Metal Oxides ◽  
Zinc Oxide Nanoparticles ◽  
Textural Properties ◽  
Oxide Nanoparticles ◽  
Zinc Oxide Nanoparticle ◽  
Synthesis Parameters ◽  
Metal Precursors ◽  
Removal Of Heavy Metals ◽  
Oxide Nanoparticle

AbstractIn this era, nanotechnology is gaining enormous popularity due to its ability to reduce metals, metalloids and metal oxides into their nanosize, which essentially alter their physical, chemical, and optical properties. Zinc oxide nanoparticle is one of the most important semiconductor metal oxides with diverse applications in the field of material science. However, several factors, such as pH of the reaction mixture, calcination temperature, reaction time, stirring speed, nature of capping agents, and concentration of metal precursors, greatly affect the properties of the zinc oxide nanoparticles and their applications. This review focuses on the influence of the synthesis parameters on the morphology, mineralogical phase, textural properties, microstructures, and size of the zinc oxide nanoparticles. In addition, the review also examined the application of zinc oxides as nanoadsorbent for the removal of heavy metals from wastewater.

Iron Oxide Nanoparticle Coatings Dictate Cell Outcomes Despite the Influence of Protein Coronas

2021 ◽  
Vol 13 (7) ◽  
pp. 7924-7944
Author(s):  
Yadileiny Portilla ◽  
Sara Mellid ◽  
Alberto Paradela ◽  
Antonio Ramos-Fernández ◽  
Neus Daviu ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticle ◽  
Nanoparticle Coatings

Succinylated heparin monolayer coating vastly increases superparamagnetic iron oxide nanoparticle T2 proton relaxivity

Nanoscale ◽  
2019 ◽  
Vol 11 (27) ◽  
pp. 12905-12914 ◽  
Author(s):  
Manman Xie ◽  
Shijia Liu ◽  
Christopher J. Butch ◽  
Shaowei Liu ◽  
Ziyang Wang ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Contrast Agents ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticles ◽  
Clinical Use ◽  
History Of ◽  
Oxide Nanoparticle ◽  
Superparamagnetic Iron Oxide Nanoparticle

Superparamagnetic iron oxide nanoparticles (SPIONs) have a history of clinical use as contrast agents in T2 weighted MRI, though relatively low T2 relaxivity has caused them to fall out of favor as new faster MRI techniques have gained prominence.

scholarly journals Dextran-coated iron oxide nanoparticle-induced nanotoxicity in neuron cultures

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ryan P. Badman ◽  
Shanna L. Moore ◽  
Jessica L. Killian ◽  
Tuancheng Feng ◽  
Thomas A. Cleland ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticle

scholarly journals Polymer/Iron Oxide Nanoparticle Composites—A Straight Forward and Scalable Synthesis Approach

2015 ◽  
Vol 16 (8) ◽  
pp. 19752-19768 ◽  
Author(s):  
Jens Sommertune ◽  
Abhilash Sugunan ◽  
Anwar Ahniyaz ◽  
Rebecca Bejhed ◽  
Anna Sarwe ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticle ◽  
Scalable Synthesis ◽  
Nanoparticle Composites ◽  
Synthesis Approach
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