Effect of silica-based mesoporous nanomaterials on human blood cells

Different mesoporous nanomaterials (MSNs) are constantly being developed for a range of therapeutic purposes, but they invariably interact with blood components and may cause hazardous side effects. Therefore, when designing and developing nanoparticles for biomedical applications, hemocompatibility should be one of the primary goals to assess their toxicity at the cellular level of all blood components. The aim of this study was to evaluate the compatibility of human blood cells (erythrocytes, platelets, and leukocytes) after exposure to silica-based mesoporous nanomaterials that had been manufactured using the solgel method, with Ca and Ce as doping elements. The viability of lymphocytes and monocytes was unaffected by the presence of MSNs at any concentration. However, it was found that all nanomaterials, at all concentrations, reduced the viability of granulocytes. Pselectin expression of all MSNs at all concentrations was statistically significantly higher in platelet incubation on the first day of storage (day 1) compared to the control. When incubated with MSNs, preserved platelets displayed higher levels of iROS at all MSNs types and concentrations examined. Ce-containing MSNs presented a slightly better hemocompatibility, although it was also dose dependent. Further research is required to determine how the unique characteristics of MSNs may affect various blood components in order to design safe and effective MSNs for various biomedical applications.

Automated summary

This study evaluated the compatibility of human blood cells with silica-based mesoporous nanomaterials (MSNs) manufactured using the solgel method, with Ca and Ce as doping elements. The results showed that these nanomaterials had no impact on the viability of lymphocytes and monocytes, but reduced the viability of granulocytes. Additionally, the expression of Pselectin in platelets and the level of internal reactive oxygen species increased when exposed to MSNs. The presence of Ce in the MSNs improved their hemocompatibility to some extent. Further research is needed to understand how MSNs may affect different blood components and design safe and effective MSNs for biomedical applications.