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Sliding and rotation of cyclodextrins (CDs) along the polymer main chain of polyrotaxanes significantly increases the binding ability for and molecular recognition of guest molecules by multifaceted inclusion complexation (see schematic diagram). The cyclodextrin-conjugated polyrotaxanes were obtained by attaching β-CDs to an α-CD/poly(ethylene glycol) polyrotaxane backbone via peptide bonds.
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Choi et al. (2006) studied this question.
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