Endogenous NO-release multi-responsive hollow mesoporous silica nanoparticles for drug encapsulation and delivery
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Updated: Sep 21, 2026

Porous Silicon Microparticles for Delivery of siRNA Therapeutics
Published on: January 15, 2015
Shu Wu1, Jinjing Shi1, Xia Chen1
1Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials (Liaoning University), College of Chemistry, Liaoning University, Shenyang 110036, China.
Abstract:
Novel multi-responsive drug delivery vehicles (CDs/PNVCL@HMSNs) were prepared by grafting amino-terminated poly (N-vinyl caprolactam) (PNVCL-NH2) and amino-rich carbon dots (CDs) on the surface of aldehyde-functionalized HMSNs (HMSNs-CHO) via Schiff base reaction. The CDs were prepared from L-arginine and their surfaces were rich in guanidine. Doxorubicin (DOX) was loaded into the nanoparticles to form drug loaded vehicles (CDs/PNVCL@HMSNs-DOX) and the drug loading efficiency was 58.38%. The drug release behaviors of CDs/PNVCL@HMSNs-DOX showed temperature and pH responsiveness due to the poly (N-vinyl caprolactam) (PNVCL) and Schiff base bond. The high concentration of NO released in high concentration H2O2 of tumor site could induce tumor cells apoptosis. The multi-responsive CDs/PNVCL@HMSNs are intriguing drug carriers, which combine drug delivery and NO release in one.
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