Figure 7From: Highly selective fluorescent chemosensor for Zn2+ derived from inorganic-organic hybrid magnetic core/shell Fe3O4@SiO2 nanoparticlesFluorescence response of DTH-Fe 3 O 4 @SiO 2 (A) and DTH (B) to various cations. Excitation wavelength was 397 nm. Spectra were recorded every 25 min after adding Zn2+.Back to article page