Fig. 3From: Dual-drug loaded nanoneedles with targeting property for efficient cancer therapyThe drug release profiles of free drug and DDNDs under 37 °C and 100 rpm. A HCPT: (a) free HCPT (pH 7.4), (b) DDNDs (pH 7.4). B MTX: (a) free MTX (pH 7.4), (b) DDNDs (pH 7.4), (c) DDNDs (pH 5.5)Back to article page