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Poly (N-isopropylacrylamide) (PNIPAAm)-grafted silica beads with variable graft densities were prepared by atom transfer radical polymerization (ATRP). The ATRP initiator on the surface of silica was prepared through the aminopropyl silica and 2-bromoisobutyryl bromide. Acetyl chloride was used to control the graft density. The content of carbon, hydrogen, and nitrogen were measured by elemental analyzer...
Based on the successful graft of P(N-isopropylacrylamide-4-vinylphenylboronic acid) [P(NIPAAm-co-VPBA)] on glass substrates by surface-initiated atom transfer radical polymerization, a microfludic chip with the performance of thermoresponsive boronate affinity was fabricated and was used for capture–release of the cis-diol biomolecule adenosine. The copolymers modified successfully on the surface...
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