confirmed the reactive edge of the Au NPs. We have schematically presented the TEM observation in Figures and. It is observed that a carbon layer of sugar milk is formed at low potency, and the Au NPs are embedded in the carbon layer. However, when diluted the solution, the carbon layer may disintegrate and form a carbon coating on every nanoparticle. Additionally, at very high potency, the surface of the particles is more active, and this active surface reacts with humans. We have taken the Raman spectra of different diluted samples to confirm our assumption, and obtained results are well-matched with the TEM results. As shown in Figure , the Raman vibrations are well-matched with previously reported data. It is found that several Raman peaks have appeared related to sucrose, lactose, and glucose, which strongly supports the TEM results.