Nanochannel-Confined TAMRA-Polypyrrole Stained DNA Stretching by Varying the Ionic Strength from Micromolar to Millimolar Concentrations oleh Seonghyun Lee, Yelin Lee, Yongkyun Kim, Cong Wang, Jungyul Park, Gun Young Jung, Yenglong Chen, Rakwoo Chang, Shuji Ikeda, Hiroshi Sugiyama, Kyubong Jo