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. Author manuscript; available in PMC: 2022 Mar 20.
Published in final edited form as: Macromol Biosci. 2018 Nov 22;19(1):e1800246. doi: 10.1002/mabi.201800246

Figure 4.

Figure 4.

FTIR spectra of (a) Pure rifampicin (RM), (b) CD polymer made without imprinting, then loaded with RM, then subjected to extensive non-polar solvent washing and drug release, (c) CD polymer made from RM imprinting, loaded with RM, and subjected to extensive non-polar solvent washing and drug release, (d) Pure CD polymer. The existence of 1701 and 1541cm−1(δ(N-H) peaks, indicates the CD polymer urethane bond. Unique RM peaks (e.g. aromatic region peaks of rifampin at around 700–800cm−1) demonstrate low background presence of RM.