## 3 Current Status of the Research
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Reference** & **Scope of the Study** & **Contributions** \\ \hline ([PERSON] et al., 2018) [4] & Challenges pertaining to IoNT & In this study, the authors examine the challenges and possibilities presented by the IoNT in a variety of application contexts. As security is regarded as one of the most important aspects of the IoNT, the authors present an in-depth analysis of its security objectives, attack vectors, and security challenges. \\ \hline ([PERSON] et al., 2016) [5] & IoNT in healthcare & Researchers highlighted the different IoNT network architectures and the architectural prerequisites for IoNT adoption in healthcare. In addition, they highlighted the key applications of the IoNT as well as the significant challenges associated with using this technology in healthcare. \\ \hline ([PERSON] and [PERSON], 2017) & IoNT applications & The authors provided a thorough understanding of the Industrial Internet of Things (IIoT) and the Internet of Nano-Things (IoNT) by presenting a range of fundamental concepts, architectures, communication classifications, communication issues, applications, benefits, and future research directions. \\ \hline ([PERSON] and [PERSON], 2016) [7] & IoNT communication & The researchers explore theoretical and experimental concepts to give a thorough architectural perspective of nano-communication, focusing on its core principles and design needs. They provided an outline of networking advantages presented by the intrinsic capabilities of fluorophores under the idea of the Internet of Molecular Things. \\ \hline ([PERSON] et al., 2022) [8] & IoNT communication & The researchers propose an energy-neutral event recognition framework using pulse position modulation in which the event information is transmitted by nanosensors that use the energy harvested from the event. In this framework, the authors use pulse position to identify transmitting nodes communicating with a single receiver. \\ \hline ([PERSON] and [PERSON], 2015) [9] & IoNT in healthcare & The authors investigated the difficulties and potential associated with linking Body Area Networks and other exterior gateways to in-body nanodevices. In this regard, a unique network architecture meeting the application needs was developed. \\ \hline ([PERSON] et al., 2021) [10] & IoNT architecture, applications, and challenges & The authors provided a systematic review of IoNT architecture, motives, applications, and challenges, reviewing work from 2015 to 2021. \\ \hline ([PERSON] et al., 2020) [11] & IoNT in healthcare & The researchers investigate the clinical and medical applications of various nanotechnology implementations and present an extensive review of nanotechnology, biosensors, nanobiosensors, and the IoNT. In addition, they provided multilayer taxonomies of nanotechnology, nanoparticles, biosensors, nanobiosensors, and nanozymes. Using several instances, the possible medicinal and clinical uses of these technologies are discussed in depth. \\ \hline ([PERSON] and [PERSON], 2017) [14] & IoNT architecture, applications, and challenges & The researchers present an in-depth analysis of the IoNT, its architecture, benefits, and limitations, as well as its application areas, to aid in the advancement of research and to provide insight into how we might overcome the challenges and make use of the IoNT in many fields. \\ \hline ([PERSON] et al., 2016) [15] & IoNT in healthcare & The paper presents the IoNT operating in telemedicine in healthcare. \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._