Related Experiment Videos
Bioactive polymers. LX. Kinetics of delayed release neomycin-xanthan complex
C Beldie1, S Dumitriu, N Aelenei
1Polytechnic Institute of Jassy, Romania.
Biomaterials
|November 1, 1989
Summary
Delayed release neomycin-xanthan complex exhibits zero-order kinetics for sustained drug delivery. This formulation demonstrates enhanced antimicrobial activity compared to free neomycin, offering a promising therapeutic option.
Area of Science:
- Pharmacokinetics and Drug Delivery
- Microbiology
- Ophthalmology
Background:
- Neomycin is a widely used antibiotic, but its conventional formulations can lead to rapid clearance.
- Developing sustained-release drug delivery systems is crucial for improving therapeutic efficacy and patient compliance.
- Xanthan gum is a biopolymer with potential applications in drug formulation due to its rheological properties.
Purpose of the Study:
- To investigate the release kinetics of a novel delayed-release neomycin-xanthan complex.
- To evaluate the antimicrobial activity of the neomycin-xanthan complex.
- To compare the performance of the complex with free neomycin.
Main Methods:
- Preparation and characterization of the neomycin-xanthan complex.
- In vitro drug release studies using artificial tear solution as eluent.
- Microbiological assays to determine antimicrobial potency (units/mg).
Main Results:
- The delayed-release neomycin-xanthan complex exhibited zero-order release kinetics, indicating a consistent drug release rate.
- The formulation contained 53.13% free neomycin.
- Microbiological tests showed an antimicrobial activity of 380 units/mg, which is 10% higher than that of free neomycin.
Conclusions:
- The neomycin-xanthan complex provides a zero-order drug release profile, suitable for sustained therapeutic action.
- The complex demonstrates superior antimicrobial efficacy compared to conventional neomycin formulations.
- This formulation holds potential for improved ophthalmic antibiotic treatments.