A review: Development of magnetic nano vectors for biomedical applications

The study of magnetic nanoparticles (MNPs) is an emergent field of science in this era due to their widespread utilization in the various fields of biomedical science. Developing concerns of magnetic nanoparticles in the researcher’s field led to design a huge number of MNPs including individual or binary metallic particles, oxides, (ferrites), biopolymer coated composites, metallic carbides and graphene mediated nanoparticles. Numerous synthetic routes are defined in literature to attain the desired size, crystal structure, morphology and magnetic properties. To build up biocompatibility, MNPs subjected to surface treatments by coating with some suitable organic or inorganic biomaterials which not only improves its physical characteristics but also elevate its chemical stability. These biomaterials coat either isolatly or in a combined state to enhance the colloidal stability, magnetic properties as well as prevent it cytotoxicity and surface corrosion in the biological media. These properties are essential for the particles and empowering their effectiveness in various biomedical science i.e., drug delivery Magnetic resonance imaging (MRI), hyperthermia, biosensors and gene therapy etc. Current review recapitulates the verdicts of previous research on the subject of magnetic nanoparticles. It will also explain the recent advancements of biomaterials that execute a dynamic role in various medical treatments. Our main focus is to report the particle types, design and properties as well as discussing various synthetic routes including sol gel, co-precipitation, microemulsion, green synthesis, sonochemical method and polyol synthesis etc. These methods produced particles of excellent yield with unique magnetic properties, coercivity and crystallinity and enhanced biocompatibility as compared to traditional methods used to develop MNPs.

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A comparative study on the magnetic properties of Fe-doped CuO nanopowders prepared by sol–gel and co-precipitation method

Materials Letters ◽

10.1016/j.matlet.2009.10.043 ◽

2010 ◽

Vol 64 (2) ◽

pp. 192-194 ◽

Cited By ~ 17

Author(s):

K.L. Liu ◽

S.L. Yuan ◽

H.N. Duan ◽

S.Y. Yin ◽

Z.M. Tian ◽

...

Keyword(s):

Magnetic Properties ◽

Comparative Study ◽

Sol Gel ◽

Precipitation Method ◽

Co Precipitation ◽

Cuo Nanopowders

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Influence of preparation method on structural, optical and magnetic properties of nickel ferrite nanoparticles

Materials Science-Poland ◽

10.1515/msp-2017-0006 ◽

2017 ◽

Vol 35 (1) ◽

pp. 58-65 ◽

Cited By ~ 8

Author(s):

Ayaz Arif Khan ◽

M. Javed ◽

A. Rauf Khan ◽

Yousaf Iqbal ◽

Asif Majeed ◽

...

Keyword(s):

Magnetic Properties ◽

Nickel Ferrite ◽

Sol Gel ◽

Chemical Properties ◽

Magnetic Behavior ◽

Sem Images ◽

Vis Spectroscopy ◽

Nickel Ferrite Nanoparticles ◽

Optical And Magnetic Properties ◽

Co Precipitation

AbstractNanocrystalline NiFe2O4 particles were prepared by conventional sol-gel, citrate-nitrate sol-gel combustion and co-precipitation methods. The synthesized samples were annealed at 1000 °C for two hours and structural, chemical, morphological, optical and magnetic properties of nickel ferrite were investigated. The structural properties were investigated by X-ray diffraction (XRD) technique which confirmed the formation of single phase NiFe2O4 particles derived by the three methods. The chemical properties were analyzed by Fourier transform infrared (FT-IR) spectroscopy which confirmed the corresponding vibration modes in the samples. The optical properties were studied by UV-Vis spectroscopy. The morphological study of the as-synthesized samples was carried out by scanning electron microscopy (SEM). SEM images showed the agglomerated nanoparticles of NiFe2O4. The magnetic properties were investigated by vibrating sample magnetometer (VSM), which showed that the calcined samples exhibited typical magnetic behavior.

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Temperature Induced Formation of Goethite from Magnetite

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1109.191 ◽

2015 ◽

Vol 1109 ◽

pp. 191-194 ◽

Cited By ~ 1

Author(s):

Mohammad Ziaul Karim ◽

Md. Eaqub Ali ◽

Sharifah Bee Abd Hamid

Keyword(s):

Raman Spectroscopy ◽

Magnetic Properties ◽

Magnetic Nanoparticles ◽

Oxide Phase ◽

Precipitation Method ◽

Magnetite Nanoparticle ◽

Precipitation Temperature ◽

The Past ◽

Wide Range ◽

Co Precipitation

Over the past few decades, magnetite nanoparticle has been profusely because of their wide range of applications. The co-precipitation method is the simplest and suitable method for the preparation of this nanoparticle. It goes through several reaction steps for the formation of various phases of magnetic nanoparticles. Goethite (FeO(OH)), is one of the intermediates, and it drastically suppressed with the magnetic properties of the Fe oxide phase. In our study, it was shown that at 30°C temperature pure magnetic nanoparticles is formed. But when precipitation temperature is increase to 80°C, goethite is also present with the magnetite nanoparticle. Hence, it is deduced that precipitation temperature plays a significant role in accelerating goethite phase formation when synthesising magnetite nanoparticle by this precipitation method. Data obtained from Raman spectroscopy and XRD supported the above observation.

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Magnetic Properties of Nickel Ferrite Magnetic Nanoparticles Prepared via Glycine Assisted Sol-Gel Auto Combustion Route

Journal of Physics Conference Series ◽

10.1088/1742-6596/1644/1/012022 ◽

2020 ◽

Vol 1644 ◽

pp. 012022

Author(s):

S Bajaj ◽

P Patil ◽

G N Kakade ◽

S D Tapsale ◽

K M Jadhav ◽

...

Keyword(s):

Magnetic Properties ◽

Magnetic Nanoparticles ◽

Nickel Ferrite ◽

Sol Gel ◽

Auto Combustion ◽

Combustion Route

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Microstructure and Magnetic Properties of Highly Ordered SBA-15 Nanocomposites Modified withFe2O3andCo3O4Nanoparticles

Journal of Nanomaterials ◽

10.1155/2012/269861 ◽

2012 ◽

Vol 2012 ◽

pp. 1-7 ◽

Cited By ~ 5

Author(s):

P. F. Wang ◽

H. X. Jin ◽

M. Chen ◽

D. F. Jin ◽

B. Hong ◽

...

Keyword(s):

Magnetic Properties ◽

Magnetic Nanoparticles ◽

Exchange Coupling ◽

Sol Gel ◽

Coupling Interaction ◽

A Value ◽

Hydrothermal Processes ◽

Exchange Coupling Interaction ◽

Microstructure And Magnetic Properties

Owing to the unique order mesopores, mesoporous SBA-15 could be used as the carrier of the magnetic nanoparticles. The magnetic nanoparticles in the frame and the mesopores lead to the exchange-coupling interaction or other interactions, which could improve the magnetic properties of SBA-15 nanocomposites. Mesoporous Fe/SBA-15 had been prepared via in situ anchoring Fe2O3into the frame and the micropores of SBA-15 using the sol-gel and hydrothermal processes. Co3O4nanoparticles had been impregnated into the mesopores of Fe/SBA-15 to form mesoporous Fe/SBA-15-Co3O4nanocomposites. XRD, HRTEM, VSM, and N2physisorption isotherms were used to characterize the mesostructure and magnetic properties of the SBA-15 nanocomposites, and all results indicated that the Fe2O3nanoparticles presented into the frame and micropores, while the Co3O4nanoparticles existed inside the mesopores of Fe/SBA-15. Furthermore, the magnetic properties of SBA-15 could be conveniently adjusted by the Fe2O3and Co3O4magnetic nanoparticles. Fe/SBA-15 exhibited ferromagnetic properties, while the impregnation of Co3O4nanoparticles greatly improved the coercivity with a value of 1424.6 Oe, which was much higher than that of Fe/SBA-15.

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Synthesis, electrical and magnetic properties of polymer coated magnetic nanoparticles for application in MEMS/NEMS

Materials Science-Poland ◽

10.2478/msp-2020-0080 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Muhammad Arshad Javid ◽

Muhammad Sajjad ◽

Saeed Ahmad ◽

Muhammad Azhar Shahid Khan ◽

Khalid Nadeem ◽

...

Keyword(s):

Magnetic Properties ◽

Magnetic Nanoparticles ◽

Research Work ◽

Precipitation Method ◽

Cubic Phase ◽

Conductivity Measurements ◽

Xrd Pattern ◽

Electrical And Magnetic Properties ◽

Co Precipitation ◽

Average Size

Abstract In this research work, polymer coated magnetic nanoparticles were prepared by co-precipitation method. The samples were characterized by XRD, SEM, EDS, VSM and two probe DC conductivity measurements. XRD pattern indicated the existence of a sole cubic phase of Fe3O4 with Miller indices (2 2 0), (3 1 1), (5 1 1), (4 4 0). An average size of magnetic nanoparticles was about 22.9 nm and it was reduced to 21.3 nm and 19.4 nm after 1 wt. %. and 2 wt. % coating of PEG-6000, respectively. The morphology and size of the samples were investigated by scanning electron microscope (SEM). EDX spectra confirmed the coating of PEG on magnetic nanoparticles. Magnetic properties were examined by vibrating sample magnetometer (VSM). Saturation magnetization (M s ) decreased as the concentration of PEG increased in the magnetic material. Electrical properties of uncoated and polymer coated Fe3O4 nanoparticles were studied by two-probe conductivity meter. This study concluded that the thermal flow of charge in polymer coated magnetic nanoparticles can be evaluated at micro and nano level.

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Investigation of synthesis and magnetic properties of plate-shaped Zn2W ferrites prepared via chemical co-precipitation and sol–gel auto-combustion

Journal of Sol-Gel Science and Technology ◽

10.1007/s10971-017-4533-6 ◽

2017 ◽

Vol 85 (1) ◽

pp. 149-157 ◽

Cited By ~ 4

Author(s):

Xiaohui Cao ◽

Xiaoyu Guo ◽

Jinhong Meng

Keyword(s):

Magnetic Properties ◽

Sol Gel ◽

Auto Combustion ◽

Co Precipitation

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Magnetic Characterization of CoFe2O4 Nanoparticles

MRS Proceedings ◽

10.1557/proc-789-n9.8 ◽

2003 ◽

Vol 789 ◽

Author(s):

G. Lawes ◽

B. Naughton ◽

D. R. Clark ◽

A. P. Ramirez ◽

R. Seshadri

Keyword(s):

Magnetic Properties ◽

Magnetic Nanoparticles ◽

Ac Susceptibility ◽

Measurement Techniques ◽

Anomalous Behavior ◽

Magnetic Characteristics ◽

Magnetic Characterization ◽

Wide Range ◽

Co Precipitation

We have synthesized CoFe2O4 nanoparticles with length scales ranging from 3.5 nm to 14.2 nm. We have characterized the magnetic properties of these samples using both DC and AC magnetization, and find some slightly anomalous behavior in two of the samples. We tentatively attribute these features to interactions between the magnetic nanoparticles.There is a great deal of interest in understanding the physical basis for the magnetic properties of nanoparticles in order to facilitate their incorporation into a wide range of commercial applications. By studying the magnetic characteristics of CoFe2O4 nanoparticles using bulk measurement techniques, we are able to probe the properties of both the individual nanoparticles and interactions in these systems. In this report, we discuss our magnetic characterization of a series of CoFe2O4 nanoparticles grown using an aqueous co-precipitation technique. In addition to DC magnetization at fixed fields and temperatures, we also investigated the magnetic properties using AC susceptibility measurements. The long term goal of this research is to understand interparticle interactions in magnetic nanoparticles.

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