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Confocal micrographs of freshly dissolved FITC PA mixed with diluent PA, containing (a) 0, (b) 26, and (c) 150 mM NaCl. Confocal micrographs of annealed FITC PA mixed with diluent PA, containing (d) 0, (e) 26, and (f) 150 mM NaCl. Fluorescence recovery after photobleaching (FRAP) experiments on (g) freshly dissolved and (h) annealed FITC PA mixed with diluent PA, at indicated NaCl concentrations (error bars represent the standard deviation).
