Chemosensing Test Paper Based on Aggregated Nanoparticles of a Barbituric Acid Derivative

Figure 4

(a) Photographs of colour and fluorescence of CB-CYH in original and ground under daylight and UV 365 nm. (b) XRD patterns of CB-CYH in original and ground. (c) Left: fluorescence spectrum of CB-CYH of solid powder in original and ground. Right: normalized fluorescence spectrum of CB-CYH of solid powder in original and ground.

(a)

(b)

(c)