Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique
Metformin hydrochloric acid (HCl)-loaded alginate microspheres prepared using aerosolization method were subsequently evaluated for their physico-chemical characteristics in terms of particle size, morphology, drug loading, entrapment efficiency, yield and in vitro release. A two factorial Design of...
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id-langga.1039252021-09-28T08:18:23Z http://repository.unair.ac.id/103925/ Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique Dewi Melani Hariyadi Yashwant Pathak Esti Hendradi Tristiana Erawati Izzatul Hidayah Elizabeth Santos R Medicine RS Pharmacy and materia medica Metformin hydrochloric acid (HCl)-loaded alginate microspheres prepared using aerosolization method were subsequently evaluated for their physico-chemical characteristics in terms of particle size, morphology, drug loading, entrapment efficiency, yield and in vitro release. A two factorial Design of Experiment (DoE) was used to study the influence of polymer alginate and cross-linker calcium chloride (CaCl2) concentrations on microparticle characteristics. The results indicated that all microspheres were spherical in shape, while their particle size was less than 5 µm, although this increased with the intensification of alginate and CaCl2 concentrations. Encapsulation efficiency, loading, and yield were all enhanced by increasing alginate concentration and, conversely, decreasing CaCl2 concentration. The highest encapsulation efficiency, loading, and yield were 40, 31, and 73%, respectively, produced by a formula containing 1.75% alginate and 3% CaCl2. The drug release of Metformin-loaded microparticles in HCl pH 1.2 ranged from 22 to 28% during a two-hour period, while further drug release of PBS pH 7.4 increased from 67 to 95% over ten hours. The total amount of drug released during a 12-h period increased by reducing alginate concentration. Furthermore, a kinetic study of the dissolution data confirmed the prevalence of a diffusion-controlled mechanism or Higuchi pattern of drug release Universiti Kebangsaan Malaysia 2020-04-18 Article PeerReviewed text en http://repository.unair.ac.id/103925/1/C-02%20FULLTEXT.pdf text en http://repository.unair.ac.id/103925/2/Validasi%20C-02%20tambahan-DM.pdf text en http://repository.unair.ac.id/103925/3/C-02%20Result.pdf text en http://repository.unair.ac.id/103925/4/C-2.pdf text en http://repository.unair.ac.id/103925/9/C-04Tambahan%20Validasi%20baru%281%29-ES-tt.pdf text en http://repository.unair.ac.id/103925/10/C-4.pdf text en http://repository.unair.ac.id/103925/11/C-04%20Result.pdf text en http://repository.unair.ac.id/103925/15/C-01%20Fulltext.pdf text en http://repository.unair.ac.id/103925/16/C-01%20Peer%20Review.pdf text en http://repository.unair.ac.id/103925/17/C-01%20Similarity.pdf Dewi Melani Hariyadi and Yashwant Pathak and Esti Hendradi and Tristiana Erawati and Izzatul Hidayah and Elizabeth Santos (2020) Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique. Sains Malaysiana, 49 (10). pp. 2513-2525. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol49num10_2020/vol49num10_2020pg2513-2525.html http://www.ukm.my/jsm/pdf_files/SM-PDF-49-10-2020/17.pdf |
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R Medicine RS Pharmacy and materia medica Dewi Melani Hariyadi Yashwant Pathak Esti Hendradi Tristiana Erawati Izzatul Hidayah Elizabeth Santos Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique |
description |
Metformin hydrochloric acid (HCl)-loaded alginate microspheres prepared using aerosolization method were subsequently evaluated for their physico-chemical characteristics in terms of particle size, morphology, drug loading, entrapment efficiency, yield and in vitro release. A two factorial Design of Experiment (DoE) was used to study the influence of polymer alginate and cross-linker calcium chloride (CaCl2) concentrations on microparticle characteristics. The results indicated that all microspheres were spherical in shape, while their particle size was less than 5 µm, although this increased with the intensification of alginate and CaCl2 concentrations. Encapsulation efficiency, loading, and yield were all enhanced by increasing alginate concentration and, conversely, decreasing CaCl2 concentration. The highest encapsulation efficiency, loading, and yield were 40, 31, and 73%, respectively, produced by a formula containing 1.75% alginate and 3% CaCl2. The drug release of Metformin-loaded microparticles in HCl pH 1.2 ranged from 22 to 28% during a two-hour period, while further drug release of PBS pH 7.4 increased from 67 to 95% over ten hours. The total amount of drug released during a 12-h period increased by reducing alginate concentration. Furthermore, a kinetic study of the dissolution data confirmed the prevalence of a diffusion-controlled mechanism or Higuchi pattern of drug release |
format |
Article PeerReviewed |
author |
Dewi Melani Hariyadi Yashwant Pathak Esti Hendradi Tristiana Erawati Izzatul Hidayah Elizabeth Santos |
author_facet |
Dewi Melani Hariyadi Yashwant Pathak Esti Hendradi Tristiana Erawati Izzatul Hidayah Elizabeth Santos |
author_sort |
Dewi Melani Hariyadi |
title |
Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique |
title_short |
Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique |
title_full |
Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique |
title_fullStr |
Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique |
title_full_unstemmed |
Formulation of Metformin-Loaded Alginate Microspheres by Ionotropic Gelation-Aerosolization Technique |
title_sort |
formulation of metformin-loaded alginate microspheres by ionotropic gelation-aerosolization technique |
publisher |
Universiti Kebangsaan Malaysia |
publishDate |
2020 |
url |
http://repository.unair.ac.id/103925/1/C-02%20FULLTEXT.pdf http://repository.unair.ac.id/103925/2/Validasi%20C-02%20tambahan-DM.pdf http://repository.unair.ac.id/103925/3/C-02%20Result.pdf http://repository.unair.ac.id/103925/4/C-2.pdf http://repository.unair.ac.id/103925/9/C-04Tambahan%20Validasi%20baru%281%29-ES-tt.pdf http://repository.unair.ac.id/103925/10/C-4.pdf http://repository.unair.ac.id/103925/11/C-04%20Result.pdf http://repository.unair.ac.id/103925/15/C-01%20Fulltext.pdf http://repository.unair.ac.id/103925/16/C-01%20Peer%20Review.pdf http://repository.unair.ac.id/103925/17/C-01%20Similarity.pdf http://repository.unair.ac.id/103925/ http://www.ukm.my/jsm/english_journals/vol49num10_2020/vol49num10_2020pg2513-2525.html http://www.ukm.my/jsm/pdf_files/SM-PDF-49-10-2020/17.pdf |
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