Highlighted in Figure are the top individual substances associated with the different substance classes with an emphasis on the major contributors -organic/inorganic small molecules, elements, and polymers. It is important to note that the leading substances associated with nanosensor publications are representative of both materials potentially used to fabricate nanosensors as well as materials that are detected by nanosensors. The top substances associated across different classes show a high degree of overlap between journal and patent publications. A few exceptions include nickel, titanium, and palladium in the element subclass that show up in the top 10 for patent publications, but not for journal publications. Similarly, in the polymer subclass polytetrafluoroethylene (PTFE) occurs in the top 10 for patent publications only, while polypyrrole (PPy) and poly(3,4-ethylenedioxythiophene) (PEDOT) occur in the top 10 for journal publications only. While our emphasis for the sake of discussion has been on the top 10 substances, it is important to note that some of these substances occur beyond top 10 for either journal and patent publications and in that sense, there is a high degree of overlap. One potential reason for dissonance between leading substances in patent and journal publications could be because patent publications might be more focused on novelty in terms of sensor types and/or detection methods rather than material itself -for example, PTFE has been known since the late 1930s while PEDOT is much more recent (late 1980s).