International journal of Nanobiotechnology

Magnetic field guided diluted magnetic semiconductor ZnxFe2-xO3 Nanostructures for applications in biomedical and biosensors

  1. Gizachew Diga Milki

Abstract

The magnetic field guided nanoparticles are studied in the viewpoint of diluted magnetic semiconductor. Different structures and properties of Zn doped α-Fe 2 O 3 nanostructure is presented in theoretical point of view. In these regard, Weiss molecular filed theory, DFTB model, and DLVO theory are used to describe particle agglomeration, aggregation, electrostatic interactions, and magnetic interactions between Zn doped iron oxide nanocolloids. In addition, the nature of interactions between Zn doped iron oxide nanoparticles and body fluids typically of Hemoglobin & DNA is discussed. Taking this in consideration, more emphasis is given to the roles of nanotechnology in transforming Zn x Fe 2-x O 3 nanostructures for application in medical and Nanosensors by pinpointing the nature of interaction. The scientific method of synthesizing and Characterizing Zn x Fe 2-x O 3 nanoparticles is discussed. However, greater attention is invested on to Hydrothermal, Solvothermal, and Biological (Green) methods. In additions, the impact of nanotechnology, particularly the role of magnetic nanoparticles in ensuring biomedical applications such as therapeutic, hyperthermia, diagnosis, imaging, biosensing, and drug delivery system is discussed. For in vivo or in vitro applications, properties such as biocompatibility, reactivity, bio sensitivity, magnetic interactions, and electrostatic interactions are considered. It is investigated that MOSFETs & POSFETs integrated bio Nanosensors have high signal amplification, and image resolution which makes them preferred for diagnosis of cancers and cell imaging. This is done by determining the response of Zn x Fe 2-x O 3 nanoparticles to external Rheology such as temperature, pressure, electric fields, and magnetic fields.

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