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Transmission electron micrographs illustrating the effects of HA-o released from NPs loaded with 8% w/w HA-o over 21 days on elastic matrix deposition (B, C, D) by EaRASMCs, compared to NP-untreated control (A). E indicates cross sections of immature amorphous elastin deposits in the fibrillar network, and M indicates the microfibrillar scaffold structure surrounding the deposits.
