Figure 2From: Copper Selenide Nanosnakes: Bovine Serum Albumin-Assisted Room Temperature Controllable Synthesis and Characterizationa UV–vis absorption spectrum of BSA, BSA–Cu2+, BSA–CuSe at 24 h, BSA–CuSe at 48 h, BSA–CuSe at 72 h, BSA–CuSe at 96 h; b The change of absorbance at 190 nmBack to article page