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. Author manuscript; available in PMC: 2015 Jan 16.
Published in final edited form as: Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2010 Jul-Aug;2(4):431–440. doi: 10.1002/wnan.87

Figure 1.

Figure 1

(A) Representative 19F spectrum of PFPE and PFOB nanoparticles shows the chemical shift of 19F signatures. The single PFPE peak and five discernible PFOB peaks are easily detected and individually resolved. (B) Chemical structure of PFPE shows its twenty 19F atoms. (C) Schematic of a PFPE nanoparticle functionalized with homing ligands in the outer phospholipid monolayer (shown in green). The PFPE nanoparticle provides 1H MR contrast by its surface payload of ~90,000 Gd3+ (shown in gold) and 19F MR contrast by ~100M 19F in its core. (From Morawski et al. [1] and Southworth et al. [2].)