The fabrication of magnetic nanochains with controlled aspect ratio, a uniform size, and a well-defined shape is the focus of many world-leading research groups and high-tech companies. The magnetic nanochains possess attractive properties which are significant added value for many potential uses including magneto-mechanical actuation-associated nanomedicines in low and super-low frequency alternating magnetic field. Such structures are used in a variety of applications, such as imaging and drug delivery. Other applications are shown below:
* Mechanical sensors for testing the elastic moduli of biomolecules and nanostructures.
* Microactuation
* MRI imaging
* Drug delivery 
* Responsive coatings