Selective detection of Mg²⁺ ions via enhanced fluorescence emission using Au–DNA nanocomposites

• Tanushree Basu,
• Khyati Rana,
• Niranjan Das and
• Bonamali Pal

Beilstein J. Nanotechnol. 2017, 8, 762–771, doi:10.3762/bjnano.8.79

• nanostructure. Keywords: Au–DNA nanocomposites; enhanced fluorescence emission; metal-ion detection; Mg2+ ion detection; Introduction The interactions between Au nanoparticles (AuNPs) and DNA are essential to classify and expand upon, given the potential applications for NP–DNA complexes such as gene therapy

• ) that the Au–DNA NC material used as sensor for Mg2+ ion detection was effective only upto 100 ppm. From Figure 11 it was observed that the fluorescence intensity of Gelusil was 900 a.u. From the calibration curve as shown in Figure 10b the fluorescence intensity was found to be 238 a.u. for 100 ppm