Assuming a perfect hexagonal arrangement, these magnitudes are related through the following expression: (2) D p = D int · P · 2 · 3 Π · Comparing the D p obtained from this optical characterization method with the approximate estimation from SEM, it can be seen that both show an increasing trend but that pore size determinations are not very precise from image analysis of surface pictures.
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Engineering optical properties of gold-coated nanoporous anodic alumina for biosensing.
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