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Quantum dots (Qdots or QD) transport at different times following N-9 pretreatment. Mice were treated using 1% N-9 in PBS, then after the stated interval, 30ul 1uM polyarg-Sav-QD were instilled. Lymph nodes were harvested 36h later and scored. Control mice were not treated with N-9 (5 animals per group). Scoring: 1=1-10 clusters per node; 2=10-50 clusters per node; 3=50-100 clusters per node; 4=>100 clusters per node [4].
