Journal Pre-proof A Fluorimetric water-soluble polymeric pH chemosensor for extremely acidic conditions: live-cell and bacterial imaging application Ujjal Haldar (Writing - original draft) (Investigation), Sutapa Som Chaudhury (Investigation), Rini Sharma (Investigation), Bhuban Ruidas (Investigation), Shanti Gopal Patra (Investigation), Chitrangada Das Mukhopadhyay (Writing - review and editing), Hyung-il Lee (Conceptualization) (Supervision) PII: S0925-4005(20)30724-3 DOI: https://doi.org/10.1016/j.snb.2020.128379 Reference: SNB 128379 To appear in: Sensors and Actuators: B. Chemical Received Date: 3 April 2020 Revised Date: 13 May 2020 Accepted Date: 27 May 2020 Please cite this article as: Haldar U, Chaudhury SS, Sharma R, Ruidas B, Patra SG, Mukhopadhyay CD, Lee H-il, A Fluorimetric water-soluble polymeric pH chemosensor for extremely acidic conditions: live-cell and bacterial imaging application, Sensors and Actuators: B. Chemical (2020), doi: https://doi.org/10.1016/j.snb.2020.128379