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. Author manuscript; available in PMC: 2016 Mar 2.
Published in final edited form as: Chem Soc Rev. 2011 Mar 25;40(7):3677–3702. doi: 10.1039/c0cs00138d

Fig. 4.

Fig. 4

Schemes for nanoslit and nanochannel fabrication in PDMS. Fabrication of crack-induced (a) normally-open nanochannels; (b) normally-closed nanochannels. (c) Fabrication of nanochannels using wrinkles made by surface buckling. (d) Nanochannel fabrication using sacrificial electrospun nanofibers. (e) Fabrication of nanochannels by deformation of a thin layer of PDMS over nanotopography. (f) Nanochannel fabrication by collapse of micron-scale PDMS microchannels. (g) Nanochannel fabrication with PS Petri-dish cracking.