Finally, in Fig. (f) we have shown how an increase in the applied electric field strength changes the percentage of monomer in different regions of the nanochannel ("inside the brush" region and "brush-bulk interface" region). Here minside and minterface represent the percentage of monomers in "inside the brush" region and in "brush-bulk interface" region, respectively. An increase in the electric field strength increases minterface, but decreases minside. This result is commensurate with Fig. , where for larger electric fields, a greater number of the PE chains are observed in the interface due to the slanted configuration of the brush ends. Also, such an increase in the monomer percentage in the brush-bulk interface region for larger electric fields matches well with an equivalent increase in the percentage of counterions in brush-bulk interface for larger electric fields [see Fig. ]. It also explains why the screening efficiency remains close to 100% even at high electric fields: at such enhanced electric fields, there is a nearly equivalent increase in the percentage of monomers and percentage of counterions in the "brush-bulk interface" region. This increase in the number of counterions in the "brush-bulk interface" region, in response to the corresponding increase in the number of monomers in the brush-bulk interface owing to the chain ends becoming parallel to the surface, ultimately causes the enhanced EOS flow and EOS volume