**1. Introduction**

The major health problems currently afflicting the world population have spurred both research and the development of several medicines meant to treat historical diseases as well as more recent ones, such as the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). The range of systems and approaches that can be used to deliver therapies is therefore growing and advancing at an accelerated rate. However, the development of any drug involves a research phase, during which several iterative tests and trials provide important information on the characteristics of the therapeutic target, the biological context, and possible physiological implications [1, 2]. These types of studies provide information on the formulation, efficacy, dosage, and safety of drugs. Products obtained from nanobiotechnology require very rigorous studies due to the great chemical diversity and toxicity said products can produce. These studies must be designed to provide detailed information on the biocompatibility of the nanomaterial and reveal any functional effect on the main


## **Table 1.**

*Graphene quantum dots for cancer-targeted drug delivery.*
