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. Author manuscript; available in PMC: 2014 Jun 17.
Published in final edited form as: ACS Nano. 2011 Jun 6;5(6):4329–4336. doi: 10.1021/nn201198f

Figure 3.

Figure 3

Characterization of the biofunctionalized IONPs. (A) FT-IR spectra and (B) gross views of IONP-6PEGs after biofunctionalization. (C) Long-term stability of biofunctionalized IONPs by absorbance measurements at 350 nm. (D) Magnetic properties of IONPs measured by VSM.