Biological application of carbon nanotubes and graphene
Carbon nanotubes (CNTs) and graphene are low-dimensional nanomaterials that have attracted tremendous scientific and industrial interest in the last two decades. Besides the traditional electronic and optical applications, they also hold a great promise in the biological and medical fields. This chapter summarizes the recent progress of CNTs and graphene in biological applications and presents some of the most intriguing examples, including biosensors, diagnostic and imaging tools, therapeutic drug delivery systems, anti-cancer research, tissue engineering scaffolds and neuron prosthesis. It attempts to demonstrate the advantages and challenges in the current development of CNT- and graphene-based biomedical devices, as well as to shed light on better utilizing these materials by possibly controlling their structure and functionalities.