title: Quantification of surface functional groups on polymer microspheres by supramolecular host-guest interactions.
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 cucurbit[7]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.
authors.affiliation: BAM-Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, D-12489 Berlin, Germany. andreas.hennig@bam.de
authors.forename: Andreas
authors.initials: A
authors.lastname: Hennig
authors.forename: Angelika
authors.initials: A
authors.lastname: Hoffmann
authors.forename: Heike
authors.initials: H
authors.lastname: Borcherding
authors.forename: Thomas
authors.initials: T
authors.lastname: Thiele
authors.forename: Uwe
authors.initials: U
authors.lastname: Schedler
authors.forename: Ute
authors.initials: U
authors.lastname: Resch-Genger
mesh_terms: D001952:Bridged-Ring Compounds / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D008863:Microspheres; D011108:Polymers / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D047028:Macrocyclic Compounds; D000099246:Cucurbit(n)urils
chemical_list: D001952:Bridged-Ring Compounds; D007093:Imidazoles; D011108:Polymers; C456276:cucurbit(7)uril; D047028:Macrocyclic Compounds; D000099246:Cucurbit(n)urils