Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 670, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2023.131592
Keywords
Drug delivery system; Asymmetric silica; Hyaluronic acid; Responsive drug release
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Current research on silica-based drug delivery systems (DDS) focuses on improving uptake efficiency using asymmetric silica carriers, such as the designed and prepared asymmetric mesoporous silica (AMS) nanocarriers in this study. These carriers displayed higher cell uptake efficiency compared to spherical carriers, and they also demonstrated pH/enzyme-triggered drug release when loaded with doxorubicin (DOX) and blocked with hyaluronic acid (HA) molecules.
Current research on silica-based drug delivery systems (DDS) mainly focuses on spherical silica nanocarriers, but asymmetric silica carriers display improving uptake efficiency. In this paper, asymmetric mesoporous silica (AMS) nanocarriers were designed and prepared by asymmetric modification. The AMS sample presents badminton-like structure with head of about 250 nm and tail length of 60-70 nm. Compared with spherical carriers, the AMS carriers displayed higher cell uptake efficiency. When doxorubicin (DOX) was loaded, hyal-uronic acid (HA) molecules were used to block the loaded-drug. HA layer was easily degraded by endogenous hyaluronidase (HAase) or acidic environment. The obtained DOX@AMS-HA displayed pH/enzyme-triggered drug release.
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