Sequential-release of anticancer drugs microcapsulated with ethylcellulose.

Objective: To approach the sequential release of antitumor drugs and promote the effect of chemotherapy.

Methods: Adriamycin (ADM) and carboplatin (CBP) were respectively microcapsulated with ethylcellulose by organic phase separation. The morphology and sizes of the microcapsules were observed and measured with light microscope and scanning electromicroscope.

Comparison of calcium alginate film with collagen membrane for guided bone regeneration in mandibular defects in rabbits.

Purpose: We sought to compare calcium alginate film (CAF) with collagen membrane (CM) regarding their effects on guided bone regeneration.

Materials And Methods: Circular bone defects with 5-mm diameter were created in the region anterior to both mandibular angles in 34 rabbits. The defects on one side were covered with a CAF, and the contralateral side with CM.