PMID- 15778054 OWN - NLM STAT- MEDLINE DCOM- 20050728 LR - 20131121 IS - 0378-5173 (Print) IS - 0378-5173 (Linking) VI - 293 IP - 1-2 DP - 2005 Apr 11 TI - Preparation of molecularly imprinted cyclodextrin microspheres. PG - 165-70 AB - Molecularly imprinted cyclodextrins (MI-CDs) are prepared by cross-linking CDs in the presence of a template molecule. The binding ability of MI-CDs to the template molecule is specific; therefore, MI-CDs will prove to be useful materials. In this study, we prepared microspheres of MI-CDs (MSs-MI-CD) in a dimethylsulfoxide/poly(dimethylsiloxane) (PDMS) emulsion, using cholesterol as the template molecule. MSs-MI-CD were prepared under various conditions and were evaluated with respect to their morphology, size, and binding ability. MSs-MI-CD prepared at 65 degrees C were in an aggregated form; however, we could prepare separated and uniform MSs-MI-CD at 95 degrees C. The viscosity of PDMS influenced the size of MSs-MI-CD. The mean particle diameters of MSs-MI-CD prepared with 50 and 1000 mm(2)/s PDMS were 146 and 43 microm, respectively. The binding ability of MSs-MI-CD to cholesterol was higher than that of non-imprinted microspheres. Cholesterol imprinting also promoted the binding ability to other steroids; however, the increase in binding ability was most remarkable in the case of cholesterol, suggesting that we successfully introduced the cholesterol-specific binding ability into MSs-MI-CD. The novel MSs-MI-CD preparation method is useful and simple, and it will provide opportunities for further studies on the specific binding ability of MI-CDs. FAU - Egawa, Y AU - Egawa Y AD - Pharmaceutical Research Laboratories, Nikken Chemicals Co. Ltd., 1-346 Kitabukuro-cho, Ohmiya-ku, Saitama-shi, Saitama, Japan. moguinukuma@yahoo.co.jp FAU - Shimura, Y AU - Shimura Y FAU - Nowatari, Y AU - Nowatari Y FAU - Aiba, D AU - Aiba D FAU - Juni, K AU - Juni K LA - eng PT - Journal Article PL - Netherlands TA - Int J Pharm JT - International journal of pharmaceutics JID - 7804127 RN - 0 (Cyclodextrins) RN - 97C5T2UQ7J (Cholesterol) SB - IM MH - Cholesterol/metabolism MH - Cyclodextrins/*chemical synthesis/metabolism MH - *Microspheres EDAT- 2005/03/22 09:00 MHDA- 2005/07/29 09:00 CRDT- 2005/03/22 09:00 PHST- 2004/11/21 00:00 [received] PHST- 2004/12/25 00:00 [revised] PHST- 2004/12/26 00:00 [accepted] PHST- 2005/03/22 09:00 [pubmed] PHST- 2005/07/29 09:00 [medline] PHST- 2005/03/22 09:00 [entrez] AID - S0378-5173(05)00055-4 [pii] AID - 10.1016/j.ijpharm.2004.12.020 [doi] PST - ppublish SO - Int J Pharm. 2005 Apr 11;293(1-2):165-70. doi: 10.1016/j.ijpharm.2004.12.020.