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Updated: Apr 4, 2026

Generation of Alginate Microspheres for Biomedical Applications
Published on: August 12, 2012
Alginate beads as a carrier for omeprazole/SBA-15 inclusion compound: A step towards the development of personalized
Pasquale Del Gaudio1, Felicetta De Cicco1, Francesca Sansone1
1Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
Insights
New enteric alginate beads offer personalized omeprazole (OME) dosages for pediatric gastro-esophageal reflux disease (GERD). These beads provide controlled drug release, improving treatment compared to market products.
Area of Science:
- Pharmaceutical Technology
- Drug Delivery Systems
- Pediatric Medicine
Background:
- Gastro-esophageal reflux disease (GERD) treatment in children presents challenges with current dosage forms.
- Need for age- and weight-appropriate medication delivery in pediatric patients.
Purpose of the Study:
- To formulate enteric alginate beads loaded with omeprazole (OME) for personalized pediatric GERD treatment.
- To evaluate the drug loading, release kinetics, and in vitro performance of these novel beads.
Main Methods:
- Omeprazole (OME) was entrapped within SBA-15 mesoporous silica and subsequently loaded into alginate beads via prilling.
- Characterization of beads for size, morphology, drug loading, and distribution.
- In vitro release studies were conducted in simulated gastric fluid (SGF) and simulated intestinal fluid (SIF).
Main Results:
- Alginate beads exhibited homogeneous size, spherical morphology, and consistent drug loading and distribution.
- Limited swelling and drug release (<10%) were observed in SGF within 2 hours.
- Prolonged drug release occurred in SIF over 6 hours, indicating suitability for intestinal delivery.
- The novel beads demonstrated superior performance compared to a marketed product, particularly in SIF release.
Conclusions:
- The developed enteric alginate beads are a promising novel tool for personalized GERD treatment in children.
- Uniformity and controlled release properties support their potential for improved pediatric pharmacotherapy.
- This formulation addresses limitations of existing treatments for pediatric GERD.
Abstract:
The treatment of gastro-esophageal reflux disease (GERD) shows several issues among paediatric patients. This work aims to the formulation of enteric alginate beads loaded with omeprazole (OME) allowing age- and weight-related personalized dosages in children. OME was entrapped in SBA-15 mesoporous compound, characterized and loaded into alginate beads by prilling at different OME and alginate concentrations. The beads resulted of homogeneous size, spherical morphology and very consistent in drug loading and distribution. Formulations demonstrated limited swelling and release (about 10%) in simulated gastric fluid (SGF) after 2h and a prolonged release in simulated intestinal fluid (SIF), till 6h, due to a mixed diffusion-case II transport mechanism. The beads were superior to the market product, which showed lower release in SGF but immediate dissolution in SIF. The high alginate beads uniformity and release properties make them a potential novel tool for a personalized treatment of GERD in children.
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