. 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
Sample	Hf	SiO₂	PEG	Zeta potential (mV)^b	Average size (nm)^c
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

Determined by TGA.

Measured in 1 mM aq. KCl.

Number-averaged sizes measured in 10 mM PBS.