Abstract
In the present study, we generated a polyethylene surface coated with a gradient ofquantum dots for use in imaging experiments. The polyethylene surface was first treatedwith increasing coronal discharge along its length. Next, the surface was reactedwith branched polyethyleneimine followed by biotin to produce a polyethylenesurface with a gradient of biotin. Finally, the biotin-coated surface was reactedwith streptavidin-coated quantum dots. Fluorescent imaging showed that thefluorescence intensity from the quantum dots gradually increased along its length. Suchquantum-dot-modified gradient polyethylene surfaces may be useful in biomedical analyses.
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