**Original Processes**

By original process, we mean processes that are rarely studied from a process point of view and/or that recently emerged. Among these, the process synthesis of carbon dots studied by Pudza et al. [16] can be ranked. A part of the article deals with the chemical synthesis of these carbon dots and has little connection with process engineering. However, the latter is concerned when the authors apply a surface response methodology using design of experiments to optimize their process. This strategy is often used when researchers or engineers meet grea<sup>t</sup> di fficulties in modeling the process. From that angle, it could also mean that such a process presents interest for modeling based on first principles. Nevertheless, the authors are able to propose conditions for efficient and sustainable synthesis of carbon dots.
