Fig. 1From: An Efficient Cell-Targeting Drug Delivery System Based on Aptamer-Modified Mesoporous Silica NanoparticlesSchematic illustration of Sgc8 aptamer-modified mesoporous silica nanoparticles for an efficient cell-targeting drug delivery system. CEM cell, CCRF-CEM human acute T lymphocyte leukemia cells; Dox, doxorubicin; MSN, modified silica nanoparticle; PTK-7, protein tyrosine kinase-7Back to article page