Quantification of surface functional groups on polymer microspheres by supramolecular host-guest interactions |
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Authors: | Hennig Andreas Hoffmann Angelika Borcherding Heike Thiele Thomas Schedler Uwe Resch-Genger Ute |
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Institution: | BAM-Federal Institute for Materials Research and Testing, Richard-Willst?tter-Stra?e 11, D-12489 Berlin, Germany. andreas.hennig@bam.de |
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Abstract: | We introduce a method to determine the number of accessible functional groups on a polymer microsphere surface based on the interaction between the macrocyclic host cucurbit7]uril (CB7) and a guest reacted to the microsphere surface. After centrifugation, CB7 in the supernatant is quantified by addition of a fluorescent dye. The difference between added and detected CB7 affords the number of accessible surface functional groups. |
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