preparation of strongly fluorescent CdTe quantum dot -biopolymer in aqueous solution

WATERsoluble CdTe quantum dots QDS were modified using a novel biopolymer based on the graft copolymerization of poly acrylamide as a monomer onto collagen as a backbone at room temperature the obtained CdTe QDS were characterized by transmission electron microscopy optical properties of the prepared CdTe QDs were investigated by absorption and fluorescence spectra it was found that the resultant QDS incredibly exhibited high fluorescence intensity and quantum yields lastly the influence of the aging time on the fluorescence intensity of the modified CdTe QDS was studied by their fluorescence spectra due to the optical behaviour of these modified QDS it could be of potential interest in biological systems

Keywords:

poly acrylamide , quantum dots , collagen , optical properties