Spodoptera frugiperda cells (Sf9 and Sf21 cell lines) are commonly used in biomedical research for the purpose of recombinant protein expression using insect-specific viruses called baculoviruses.
Under his leadership secretory and non-secretory expression systems for the production of recombinant proteins in E. coli, Saccharomyces cerevisiae, Baculovirus and mammalian cells in cell culture were developed and recombinant virus technology was established.