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Caption : edx analysis of the m3_30 sample: electron image with overlayed elemental maps (a), elemental map for ag (b), and energy spectra (c, d).

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Caption : tem images of (a) m3_24h and (b) s3_24h samples.

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Caption : agnps sizes distribution.

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Caption : sem images of (a) m3_30min, (b) m3_6h, and (c) m3_24h samples.

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Caption : tem image of initial bnnps.