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. Author manuscript; available in PMC: 2012 Apr 25.
Published in final edited form as: J Phys Chem B. 2008 Dec 11;112(49):15646–15650. doi: 10.1021/jp807556x

Figure 3.

Figure 3

A low-magnification (60×) cross-sectional optical image. The red areas indicate the depth of 1 accessed into PVG. The image shows 0.32 mm penetration depth on each face for 0.9 × 10−6 mol 1 adsorbed onto a 1.5 mm PVG sample. The horizontal line in the middle of the PVG sample corresponds to where two glass layers meet due to the commercial fabrication process.