Methotrexate loaded alginate microparticles and effect of Ca2+ post-crosslinking: An in vitro physicochemical and biological evaluation

International Journal of Biological Macromolecules
Mukesh DhankaRohit Srivastava

Abstract

Methotrexate (MTX) loaded alginate microparticles were produced by simple water-in-oil (W/O) emulsion solvent diffusion method with homogenization and then subsequently cross-linked by Ca2+. The mean sizes of developed microparticles (bare non-crosslinked, crosslinked, drug-loaded non-crosslinked, and drug-loaded cross-linked) were found to be <11μm. The morphology of bare non-crosslinked and crosslinked microparticles were observed to be spherical with smooth surface morphology. However, MTX loaded non-crosslinked and crosslinked microparticles were found to have an irregular shape with rough surface morphology. The encapsulation efficiency (% EE) and loading capacity (% LC) of MTX loaded non-crosslinked microparticles were estimated to be 92.19±1.85 and 9.35±0.22, respectively. However, in case of cross-linked microparticles, the % EE and % LC values slightly decreased, i.e., 83.26±1.69% and 8.44±0.21%, respectively. Crosslinked microparticles were found to release MTX at a slower rate as compared to non-crosslinked microparticles. The physicochemical characterizations of microparticles by Fourier Transform Infrared Spectroscopy and High-Resolution X-Ray Diffraction have shown that drug encapsulated in the microparticles with...Continue Reading

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Citations

Oct 20, 2018·International Journal of Biological Macromolecules·Masoumeh ArabAmir Mohammad Mortazavian

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