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(A) Representative cryosection images showing the transport of 100 nm sized PS beads into the retina, 24 h after applying the beads on the explants. Top row: no vitreous, bottom row: no ILM. ILM and blood vessels (red) are stained by anti-COLIV antibodies, nuclei (blue) with Hoechst, particles are shown in green. Scale bar: 20 µm. (B) Semi-quantitative analysis of 100 nm PS bead uptake in vitreoretinal explants compared to conventional explants without vitreous (n = 3).
