Phenothiazine Based Mechano-fluorochromic Gels and Solids: Superhydrophobic Surface Formation and Crystal-to-Crystal Phase Transition. Sivalingam Suganya, Kingshuk Debsharma, Ezhakudiyan Ravindran, Malay Krishna Mahato and Edamana Prasad; ACS Applied Polymer Materials. 2020, 2, 1222-1233