"Grafting-To" Covalent Binding of Plasmonic Nanoparticles onto Silica WGM Microresonators: Mechanically Robust Single-Molecule Sensors and Determination of Activation Energies from Single-Particle Events. - Mariana P. Serrano; Sivaraman Subramanian; Catalina von Bilderling; Matías Rafti; Frank Vollmer (Sensors, 2023)