Nanomagnetism: An Interdisciplinary Approach

This article provides an overview of magnetic nanoparticle synthesis techniques, their experimental methods, and their applications in high-density magnetic recording media, nanostructured permanent magnets, MRI imaging enhancement, and magnetically guided drug delivery.

Format: Hardback
Length: 418 pages
Publication date: 13 April 2022
Publisher: Taylor & Francis Inc

Magnetic nanoparticles are a fascinating class of materials with a wide range of applications, from magnetic storage devices to medical imaging. The synthesis of magnetic nanoparticles is a complex process that involves several physical, chemical, and nanotemplating techniques. In this article, we will discuss the various synthesis techniques for magnetic nanoparticles and their experimental methods for determining their macroscopic and microscopic magnetization.

Physical synthesis techniques for magnetic nanoparticles include thermal evaporation, chemical reduction, and sol-gel synthesis. Thermal evaporation involves the evaporation of a metal precursor in a vacuum, while chemical reduction involves the reduction of a metal oxide or nitrate by a reducing agent such as hydrogen or carbon monoxide. Sol-gel synthesis involves the reaction of a precursor solution with a cross-linking agent to form a gel-like material, which can then be heated to form nanoparticles.

Chemical synthesis techniques for magnetic nanoparticles include template-directed synthesis, coprecipitation, and hydrothermal synthesis. Template-directed synthesis involves the use of a template molecule to direct the growth of nanoparticles, while coprecipitation involves the simultaneous precipitation of two or more metal ions to form nanoparticles. Hydrothermal synthesis involves the reaction of a metal precursor in hot water or steam to form nanoparticles.

Nanotemplating techniques for magnetic nanoparticles include electrodeposition, chemical vapor deposition, and atomic layer deposition. Electrodeposition involves the deposition of a metal layer onto a substrate using an electric current, while chemical vapor deposition involves the deposition of a metal layer onto a substrate using a chemical vapor. Atomic layer deposition involves the deposition of a thin layer of metal onto a substrate using a self-limiting reaction.

Experimental techniques for determining the macroscopic and microscopic magnetization of nanoparticles include magnetization curves, vibrating sample magnetometry, and superconducting quantum interference device magnetometry. Magnetization curves involve measuring the magnetic moment of a nanoparticle as a function of its magnetic field strength, while vibrating sample magnetometry involves measuring the magnetic moment of a nanoparticle as a function of its frequency. Superconducting quantum interference device magnetometry involves measuring the magnetic moment of a nanoparticle as a function of its temperature.

Nanomagnetism plays a crucial role in high-density magnetic recording media, nanostructured permanent magnets, MRI imaging enhancement, and magnetically guided drug delivery. High-density magnetic recording media use magnetic nanoparticles to store data, while nanostructured permanent magnets use magnetic nanoparticles to enhance their magnetic properties. MRI imaging enhancement uses magnetic nanoparticles to improve the contrast and resolution of MRI images. Magnetically guided drug delivery uses magnetic nanoparticles to target and deliver drugs to specific cells or tissues.

In conclusion, magnetic nanoparticles are a fascinating class of materials with a wide range of applications. The synthesis of magnetic nanoparticles is a complex process that involves several physical, chemical, and nanotemplating techniques. Experimental techniques for determining the macroscopic and microscopic magnetization of nanoparticles include magnetization curves, vibrating sample magnetometry, and superconducting quantum interference device magnetometry. Nanomagnetism plays a crucial role in high-density magnetic recording media, nanostructured permanent magnets, MRI imaging enhancement, and magnetically guided drug delivery.

Weight: 960g
Dimension: 184 x 260 x 32 (mm)
ISBN-13: 9781439818466