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. Author manuscript; available in PMC: 2010 Aug 27.
Published in final edited form as: Chem Soc Rev. 2010 Jan 4;39(3):912–922. doi: 10.1039/b822556g

Figure 4.

Figure 4

Available techniques for fabricating perm-selective nanojunctions. (a) Planar nanochannel fabrication in Si/glass.13 (b) Vertical nanochannels in Si.14 (c) Surface-patterned Nafion junction.19 (d) Self-sealed Nafion junction.20