Safer-by-design flame-sprayed silicon dioxide nanoparticles: the role of silanol content on ROS generation, surface activity and cytotoxicity oleh Laura Rubio, Georgios Pyrgiotakis, Juan Beltran-Huarac, Yipei Zhang, Joshi Gaurav, Glen Deloid, Anastasia Spyrogianni, Kristopher A. Sarosiek, Dhimiter Bello, Philip Demokritou