Survey on metamaterials in bio-medicine

Microwave antennas and sensors employed in bio-medical field can be used either for diagnosis like Magnetic Resonance Imaging (MRI), Microwave Computed Tomography (CT) or therapeutic purposes like Hyperthermia, Coagulation. Accurate diagnosis and treatment have always been a challenging task. This paper focuses on new material of the era, named Metamaterial which has a special feature of exhibiting a negative Refractive Index at desired frequency. This article gives a brief review over the features of metamaterials and their significance over prevention, detection or therapy of few disorders. The design concept of metamaterials in the desired ISM band is also reviewed. The advent of these materials has been discussed on diagnosis of breast tumors, MR Imaging, strain sensing, organic tissue analysis, Hyperthermia and Specific Absorption Rate (SAR) analysis. Implantable and Resorbable antennas are also presented.