In vitro and in vivo effects of mesoporous silica nanoparticles (MSN) on the functional activity of platelets were studied in experiments on white rats. MSN particles, neither uncoated nor coated with calcium alginate, induced spontaneous platelet aggregation when added to platelet-rich plasma, but significantly enhanced ADP-induced platelet aggregation. Subcutaneous administration of uncoated and calcium alginate-coated MSN resulted in increased maximum size and rate of platelet aggregate formation 1 day post-injection. In contrast, cellulose-coated MSN had no significant effect on platelet function in vitro or in vivo, suggesting their potential as carriers for targeted drug delivery.

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http://dx.doi.org/10.1007/s10517-025-06308-yDOI Listing

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