MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Cirillo G, Parisi OI, Curcio M, Puoci F, Iemma F, Spizzirri UG, Picci N
Article Title: Molecularly imprinted polymers as drug delivery systems for the sustained release of glycyrrhizic acid.
Publication date: 2010
Journal: Journal of Pharmacy and Pharmacology
Volume: 62
Issue: (5)
Page numbers: 577-582.
DOI: 10.1211/jpp.62.05.0003

Abstract: Objectives The aim was to synthesize molecularly imprinted polymers (MIPs) with high recognition properties towards glycyrrhizic acid and to evaluate the performance of these materials to act as base excipients in glycyrrhizic acid sustained release in gastrointestinal simulating fluids. Methods MIPs were synthesized using methacrylic acid (MAA) as acidic, 2-(dimethylamino)ethyl methacrylate (DMAEMA) as basic, and 2-hydroxyethylmethacrylate (HEMA) as neutral functional monomers, while ethylene glycol dimethacrylate (EGDMA) was chosen as a crosslinking agent. The imprinting effect was evaluated by binding experiments using glycyrrhizic acid and glycyrrhetic acid (analogue molecule) solutions and in-vitro release studies were performed in gastrointestinal simulating fluids. Key findings Good recognition and selectivity properties were found in all the synthesized materials in both ethanol and ethanol-water mixture. The release from non-imprinted polymers was indeed higher at acidic pH, while a slower release was observed in MIPs' case, because of the presence of imprinted cavities in the polymeric structure. The stronger capacity of MAA to interact by hydrogen bonds with the template makes MAA-containing MIPs the most effective materials in both rebinding and release experiments. Conclusions The release tests confirm the applicability of imprinted polymer for glycyrrhizic acid sustained release in gastrointestinal simulating fluids
Template and target information: glycyrrhizic acid
Author keywords: drug delivery, glycyrrhizic acid, Molecularly imprinted polymers

  Hat featuring the name Francesco spelled out in symbols of the chemical elements  SMI logo mug  Woman of proper-tea mug in red

Molecules Special Issue call      Appeal for information


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner