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Nanoscale Research Letters
Figure 3 | Nanoscale Research Letters

Figure 3

From: Diatomite silica nanoparticles for drug delivery

Figure 3

Functionalization scheme of diatomite nanoparticles with rhodamine (TRITC). APTES treatment allows surfaces substitution of the hydroxyl groups with − NH2 reactive amino-groups. These chemical modifications allow binding between − NH2 and rhodamine isothiocyanate group.

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