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. 2021 Jan 8;7(2):eabe3005. doi: 10.1126/sciadv.abe3005

Fig. 1. Colloidally stable SPIONs consisting of a PEGsilane/APS coating backfilled with additional PEG.

Fig. 1

(A) Intensity weighted distribution of backfilled PEG-coated SPIONs in 1× PBS over 28 days. a.u., arbitrary units. (B) Intensity weighted distribution of backfilled PEG-coated SPIONs in VS55 (no vitrification). (C) Intensity weighted distribution of backfilled PEG-coated SPIONs in VS55 after vitrification and nanowarming. (D) Arithmetic mean and SD of the DLS hydrodynamic diameter for backfilled SPIONs in 1× PBS and VS55 before and after vitrification and nanowarming over 28 days.