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. Author manuscript; available in PMC: 2012 Mar 15.
Published in final edited form as: Anal Chem. 2011 Feb 15;83(6):2119–2124. doi: 10.1021/ac102932d

Fig. 1.

Fig. 1

(A) SEM image of the central section of a GMA-SR454 monolith with physically-immobilized AgNP aggregates. (B) A trapped AgNP aggregate is shown in a magnified view of the circle area in (A). Aggregates generally comprise between around 5 and 200 individual ~50 nm diameter AgNPs, with the highest density of clusters appearing near the monolith head.