Abstract
The study of the noble metal magnetic hybrid nanoparticles is a really promising topic from both the scientific and the technological points of views, with applications in several fields. Iron oxide materials which are hybridized with noble metal nanoparticles (NPs) have attracted increasing interest among researchers because of their cooperative effects on combined magnetic, electronic, photonic, and catalytic activities. This review article contains a summary of magnetic noble metal/iron oxide nanoparticle systems potentially useful in practical biomedical applications. Among the applications, engineered devices for both medical diagnosis and treatments were considered. The preparation to produce different structures, as blends or core-shell structures, of several nanometric systems was also considered. Several characterization techniques available to describe the structure, morphology and different kinds of properties of hybrid nanoparticles are also included in this review.
Highlights
Huge progress in the field of nanobiotechnology towards the development of different kinds of nanomaterials with a wide range of applications has been made [1,2]
By excluding the possibility that the identified magnetism is caused by impurities in the particles, the researchers have proven that intrinsic magnetism can be invoked in noble metals, some of which are even close to satisfying Stoner's criterion for ferromagnetism [25]
Once MO/noble metal hybrid nanoparticles are produced it is important to characterize them in order to understand their structure and properties
Summary
Huge progress in the field of nanobiotechnology towards the development of different kinds of nanomaterials with a wide range of applications has been made [1,2]. Owing to the small size, nanoparticles (NPs) can interact with biomolecules generating a nano-bio interface comprising the kinetics, dynamic interactions and thermodynamic exchanges between nanomaterial surfaces and the corresponding surfaces of the biological components (such as proteins, phospholipids and so on) [5]. In this sense, it is important to remark that the size and other characteristics/properties of the NPs can be conveniently engineered, making them relevant for application in both in vivo and in vitro biomedical fields [6,7,8]. By excluding the possibility that the identified magnetism is caused by impurities in the particles, the researchers have proven that intrinsic magnetism can be invoked in noble metals, some of which are even close to satisfying Stoner's criterion for ferromagnetism [25]
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