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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: J Mater Chem. 2012 Jun 7;22(35):18139–18144. doi: 10.1039/C2JM32299D

Table 1.

Hf-UiO and its modifications: weight %, zeta potential, and size.

Sample Weight %a Zeta potential (mV)b Average size (nm)c
Hf SiO2 PEG
Hf-UiO 57.3 - - −24.6 169
Hf-UiO@SiO2 50.4 13.2 - −32.8 175
Hf-UiO@SiO2@PEG 46.4 12.2 8.0 −17.3 246
a

Determined by TGA.

b

Measured in 1 mM aq. KCl.

c

Number-averaged sizes measured in 10 mM PBS.