Water dispersible autofluorescent polymer dots comprising of non-conjugated polymers

This new type of photoluminescent nanoparticles uses inexpensive nonconjugated polymers as building blocks, and has the ability to display ultra-bright and multi-color ﬂuorescence upon excitations in both water and dry states. It also has excellent water dispersibility, low toxicity, high absorptivity, good photostability, and high quantum yield. This innovation has various potential applications, including serving as: bioimaging markers for in vitro cell imaging; autoﬂuorescent nano-carriers for image-guided therapy; nanoﬁllers in plastics for LED diﬀuser applications; ﬂuorescent ink in anti-counterfeiting applications; chemosensors for heavy metal detection and structural health monitoring.

Principal Investigator

Prof. LI Pei

Professor, Department of Applied Biology and Chemical Technology

Features

Ultra-bright photoluminescence with good photo-stability
Excellent water dispersibility and low cytotoxicity Simple and versatile synthetic strategy adopted
No aggregation-caused quenching eﬀect
All materials easily available at low cost

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