Tuning cell surface charge in E. coli with conjugated oligoelectrolytes

Cationic conjugated oligoelectrolytes (COEs) varying in length and structural features are compared with respect to their association with E. coli and their effect on cell surface charge as determined by zeta potential measurements. Regardless of structural features, at high staining concentrations COEs with longer molecular dimensions associate less, but neutralize the negative surface charge of E. coli to a greater degree than shorter COEs. 

Catania, C., Thomas, A. W. and Bazan, G. C.
Chemical Science
Volume: 7
Pages: 2023-2029
Date: December, 2015
ICB Affiliated Authors: Guillermo C Bazan