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| - Preparation of a Gradient Biotinylated Polyethylene Surface ToBind Streptavidin−FITC
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| - A novel biotinylated gradient surface was designed to bind a streptavidin−FITC. The gradientpolyethylene (PE) surface was prepared by a corona treatment with a power increase along the PElength, and successively, biotinylated gradient PE surface was prepared by the reaction of polyethylenimine (PEI) and biotin. Surface properties of the gradient PE surface changed according to PElength and chemical modification. The biotinylated gradient PE surface provided a continuous gradientof streptavidin−FITC through binding of avidin−biotin. The luminosity of fluorescence that correspondsto a streptavidin-bound FITC on the biotinylated gradient PE surface increased gradually on thesurface along the PE length.
- A novel biotinylated gradient polyethylene surface was designed to bind a streptavidin−FITC. The luminosity of fluorescence that corresponds to a streptavidin-bound FITC on the biotinylated gradient polyethylene surface increased gradually on the surface along the polyethylene length.
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