Despite the substantial body of theoretical work concerning MC, the lack of experimental validation testbeds at micro/nanoscale has led researchers to make overly simplifying assumptions about the implications of the channel conditions and the physical architectures of the practical transceivers in developing theoretical models and devising communication methods for MC. On the other hand, MC imposes unique challenges resulting from the highly complex, nonlinear, time-varying channel properties due to the discrete nature of information carriers (molecules), substantial channel memory and peculiarities of molecular interactions at nanoscale, that cannot be always tackled by conventional information and communication tools and technologies (ICT). As a result, the reliability of the existing MC methods, which are mostly adopted from electromagnetic communications and not validated with practical testbeds, is highly questionable. Therefore, there is an urgent need for practical micro/nanoscale MC testbeds, to close this gap between theory and practice in order to unleash the envisioned applications of MC and IoNT.