We show that a reactive polymer can be directly grafted from commercial Si3Nx SPM tips, without any intermediate layer. The conditions can be chosen to achieve either an isolated mushroom regime, with only one or a few chains accessible at the tip apex, or a brush regime.
Gabriel, S., Jerome, C., Jerome, R., Fustin, C.-A., Pallandre, A., Plain, J., Jonas, A., & Duwez, A.-S. (2007). One-step polymer grafting from silicon nitride SPM probes: From isolated chains to brush regime. Journal of the American chemical society, 129(27), 8410-+. https://doi.org/10.1021/ja071723m (Original work published 2007)