Simultaneous in–situ measurement of electric charge and mass of single optically trapped droplets. - Azizbaig Mohajer, Mercede; Gleichweit, Michael J.; David, Grégory; Frecot, René; Theytaz, Luca; Wessner, Jonas; Wang, Yingnan; Basuri, Pallab; Signorell, Ruth (Aerosol Science & Technology, 2026)