The interesting blue emission from poly (amido amine) (PAMAM) dendrimers and dendritic polymers as well as small molecules containing amino group

in which case there is no traditional fluorophore unit in the structure

was reproted in recent years.The intensity of fluorescence was found to vary by changing experimental conditions such as pH value

aging time

temperature

and adding oxidant.Compared to organic materials bearing traditional fluorescent chromophore

this new kind of organic fluorophores can find applications in many fields

especially in the biomedical field

because this kind of materials possesses excellent biocompatibility and unique mimic properties of biological macromolecules.To summarize the important results of recent studies

this review shows the optimal conditions

application challenge

fluorescence merit and its attractive property.The trends of research and development of this new kind fluorescence are also described.