An overview of biomedical applications and the toxicity properties of carbon nanomaterials aimed at helping to avoid detrimental health effects while laying the groundwork for further research in this highly relevant field. Summarizing recent research, the book starts with the synthesis and functionalization of carbon nanomaterials, as well as identification and detection in biosystems. It then moves on to the interaction between carbon nanoparticles and biocomponents, focusing on the toxicity and mechanisms to various organs and systems and potential biomedical applications as well. Each section highlights the challenges, outlines unanswered questions, and suggests directions for further research and development efforts.