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Shivanand Nannuri (IntlAssoc)
Postdoctoral Research Associate
I received my Ph.D. in Nanoscience and Technology from the Manipal Academy of Higher Education India and am currently a Postdoctoral Research Associate at the National Institute of Standards and Technology (NIST), Gaithersburg. My research focuses on the scalable processing and separation of single-wall carbon nanotubes (SWCNTs), with an emphasis on aqueous two-phase extraction (ATPE) for isolating single-chirality, semiconducting, and metallic nanotube populations. By developing and optimizing NIST-established separation platforms, I work toward liter-scale production of well-defined SWCNT materials to support nanocarbon metrology, reference material (RM) and RGTM development, and standardized characterization protocols.
Building on my doctoral and industrial research experience, I have developed extensive expertise in nanomaterial synthesis and processing, polymer- and surfactant-mediated separations, spectroscopic characterization of SWCNTs (Raman, PL/PLE, UV–Vis–NIR), and quantitative assessment of chirality, purity, and morphological distributions. My work contributes to establishing reproducible, scalable workflows for carbon nanotube sorting and standards development.