Fig. 4From: Biomimetic retractable DNA nanocarrier with sensitive responsivity for efficient drug delivery and enhanced photothermal therapya Cell viability of MCF-7 cells treated with 10 min NIR light or different concentrations of AuNPs-DNS or AuNPs-DNS/Que in the absence of NIR light. Relative cell proliferation percentages of MCF-7 cells treated with b AuNPs-DNS/Que after NIR irradiation for different times and d different concentrations of quercetin, AuNPs-DNS or AuNPs-DNS/Que after 10 min NIR irradiation. c Relative expression levels of Hsp27 in MCF-7 cells after different treatments. (#P < 0.01) Error bars indicate means ± SD (n = 3)Back to article page