Strong fluorescence emission from PEGylated hyperbranched poly(amido amine)

• PEG chains were linked on hyperbranched poly(amido amine) via Michael addition reaction.
• The fluorescence of PEGylated hyperbranched poly(amido amine) was investigated.
• The fluorescent PEGylated hyperbranched poly(amido amine) was used cell imaging.

Hyperbranched poly(amido amine)s (HPAA) show weak photoluminescence, however, they have shown strong emission after short polyethylene glycol (PEG) chains have been linked onto HPAA macromolecule via Michael addition reaction. These PEGylated hyperbranched poly(amido amine)s show low cytotoxicity and potential application in cell imaging.

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