Fig. 1From: Deep eutectic solvent-based manganese dioxide nanosheets composites for determination of DNA by a colorimetric method(a) The TEM image of MnO2 nanosheets; (b) FT-IR spectra of MnO2 nanosheets, ChCl/HFIP DES and DES/MnO2; (c) TGA of the MnO2 nanosheets and DES/MnO2; (d) The XPS full scan spectrum of DES/MnO2; (e) The XPS spectrum of N 1s; (f) The XPS spectrum of Mn 2pBack to article page