Systematic Review of the Preparation Techniques of Iron Oxide Magnetic Nanoparticles

Abstract

Magnetism being one of the oldest scientific disciplines has been continuously studied since 6 th century BC, which still offers scientific innovations today in realm of nanomagnetism. Iron oxide nanomaterials have been growing excessive importance because of their magnetic characteristics and wide applications. Iron oxides magnetic nanoparticles with appropriate surface chemistry are prepared either by wet chemical method such as colloid chemical or sol-gel methods or by dry processes such as vapour deposition techniques. This review summarizes comparative and brief study of the methods for the preparation of iron oxide magnetic nanoparticles with a control over the size, morphology and the magnetic properties. Applications of microwave irradiation for magnetic particle synthesis are also addressed.

Synthesis of iron oxide nanoparticles in a continuous flow spiral microreactor and Corning® advanced flow™ reactor

“…In recent years, interest in the efficient synthesis of magnetic iron oxide NPs has increased significantly due to the wide range of applications in the field of magnetic storage devices, chemical processing industries, biotechnology, water purification, and biomedical applications like thermal therapy, chemotherapy, diagnostic magnetic resonance imaging, magnetofection, and drug delivery [12][13][14][15][16][17][18][19][20][21]. The common forms of iron oxide generally found are maghemite (γ-Fe 2 O 3 ), hematite (α-Fe 2 O 3 ), magnetite (Fe 3 O 4 ), and oxo-hydroxide (FeOOH) [22,23]. Yuvakkumar et al [24] prepared nano-scaled zero valent iron (50−100 nm) using the reduction method based on the use of ferric ions and sodium borohydride in ethanol under atmospheric conditions.…”

Greenersynthesisof magnetic nanoparticles in an aqueous deepeutectic solvent

“…Several methods for the synthesis of iron oxide colloids and nanoparticles have been elaborated in the literature, such as the sol-gel, microemulsion, sonochemical, ultrasonic spray pyrolysis, and microwave plasma [40][41][42][43]. Each preparation method has its advantages and disadvantages mainly related to morphology, particles size distribution, production scale, and cost and type of application.…”

Surface modification and cellular uptake evaluation of Au-coated Ni 80 Fe 20 nanodiscs for biomedical applications

“…Usually, the conventional methods to synthesize magnetic nanoparticles are via chemical routes [14,15]. Despite that they are low-cost methods allowing one to synthesize high volumes of nanoparticles, their major drawback is the difficulty to obtain monodispersed dimensions leading to different and not easily predictable magnetic behaviour.…”