Abstract
Graphene possesses exceptional structural, mechanical, electrical, optical,
and thermal properties. These properties have provided researchers worldwide with a
vast horizon for their application in diverse fields including electronics, energy,
sensing, drug/gene delivery, photothermal therapy, and the biomedical field. Moreover,
in recent years, we have come across enormous research on graphene and its functional
analogs, especially in the biomedical imaging field. Therefore, the present chapter
provides impetus on bio-imaging modalities including optical imaging, magnetic
resonance imaging, positron emission tomography/single-photon emission computed
tomography, Raman imaging, and multimodal imaging. This chapter will provide its
readers with deep insights into the advances in bio-imaging using graphene-based
materials such as graphene, graphene oxide, and reduced graphene oxide. Finally, a
brief discussion on the challenges and prospects of using graphene materials in
bioimaging is provided.