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Novel “turn off-on” optosensors based on amphiphilic thiophene copolymers coated CdTe quantum dots (P1QDs and P2QDs) were developed for the dual detection of heparin and spermine. The emission of the P1QDs and P2QDs is found to be quenched in the presence of heparin by electron transfer mechanism through electrostatic and hydrogen bonding interactions. Upon the addition of spermine, heparin has been...
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