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. Author manuscript; available in PMC: 2020 Sep 7.
Published in final edited form as: Nanoscale. 2019 Aug 13;11(33):15647–15658. doi: 10.1039/c9nr04828f

Figure 1. Schematic, size, concentration, and structural property of NBs.

Figure 1.

(a) Schematic representation of the membrane of the ultrastable NB showing a bilayer architecture with elastic contrast. (b). Cryo-electron microscopy (cryo-EM) images of PG-Gly-PL showing the nanobubble membrane and the dense C3F8 gas core. Diameter (c) and concentration (d) measurement of NB via a resonant mass measurement capable of differentiating buoyant (NBs) and non-buoyant particles (micelles, liposomes, etc.). Mean ± SE (n = 5) (e) X-ray diffractogram of the membrane of the freeze-dried NBs. The NBs were isolated and freeze-dried overnight. Peak corresponding to d = 4.5 Å is observed for all NB but only PG-PL and PG-Gly-PL have a peak corresponding to d = 10.3 Å implying the incorporation of PG into the phospholipid membrane.