10.1371/journal.pone.0098935.g007 Wei Xu Wei Xu Xin Zhu Xin Zhu Tingting Tan Tingting Tan Weizhong Li Weizhong Li Anshan Shan Anshan Shan The outer membrane permeability of the peptides. Public Library of Science 2014 Clinical medicine pharmacology Drug research and development drug discovery membrane permeability 2014-06-19 03:19:26 Figure https://plos.figshare.com/articles/figure/_The_outer_membrane_permeability_of_the_peptides_/1062605 <p>The uptake of NPN of <i>E. coli</i> UB1005 in the presence of different concentrations of the peptides was determined using the fluorescent dye (NPN) assay. The NPN uptake was monitored at an excitation wavelength of 350 nm and an emission wavelength of 420 nm.</p>