Full Description
| Cataloguing Source | LibUI ind rda |
| Content Type | text (rdacontent) |
| Media Type | unmediated (rdamedia); computer (rdamedia) |
| Carrier Type | volume (rdacarrier); online resource (rdacarrier) |
| Physical Description | xvi, 119 pages : illustration ; 28 cm + appendix |
| Concise Text | |
| Holding Institution | Universitas Indonesia |
| Location | Perpustakaan UI, Lantai 3 |
- Availability
- Digital Files: 1
- Review
- Cover
- Abstract
| Call Number | Barcode Number | Availability |
|---|---|---|
| T44353 | 15-21-664160417 | TERSEDIA |
| No review available for this collection: 20415078 |
Abstract
Pada penelitian ini enkapsulasi obat ibuprofen menggunakan hidrogel interpenetrating polymer network (semi- dan full-IPN) berbasis kitosan dan poli(N-vinil-2-pirolidon) (PNVP) telah dipelajari. Enkapsulasi dilakukan dengan metode post loading dan in situ loading. Hidrogel IPN dipersiapkan dengan mengikat silang kitosan dan PNVP, masing-masing menggunakan asetaldehida dan N,N-metilena-bis-akrilamida (MBA). Komposisi hidrogel IPN yang digunakan terdiri dari kitosan:PNVP 70:30, 2% asetaldehida 0,1 M, 1% katalis amonium persulfat (APS), dan 1% MBA. Karakterisasi pembentukan jaringan IPN dan mikrokapsul dievaluasi menggunakan FTIR, SEM dan DSC. Hidrogel semi-IPN mampu menjerap obat lebih baik dibandingkan hidrogel full-IPN. Metode in situ loading memberikan efisiensi loading yang lebih besar dibandingkan metode post loading. Pelepasan ibuprofen selama 2 jam dalam pH 7,4 secara in situ loading adalah 52.13% (full-IPN) dan 30,41% (semi-IPN); untuk metode post loading pelepasannya adalah 79.77% (full-IPN) dan 97.10% (semi-IPN). Degradasi hidrogel full-IPN lebih sulit terjadi dibandingkan dengan hidrogel semi-IPN dalam 2 pH yang berbeda, yaitu pH 1,2 dan pH 7,4.
In this research, the encapsulation of ibuprofen using interpenetrating polymer network (semi- and full-IPN) hydrogel, based on chitosan and poly(N-vinyl-2-pyrrolidone) (PNVP) have been studied. The encapsulation was carried out by post loading and in situ loading method. IPN hydrogel was prepared by crosslinking chitosan and PNVP using acetaldehyde and N,N-metylene-bis-acrylamide (MBA), respectively. The hydrogel contain chitosan:PNVP 70:30 (w/w), 2% acetaldehyde 0.1 M, 1% ammonium persulphate (APS) catalyst and 1% MBA. Characterization of the formation of IPN network and microcapsules were evaluated by using FTIR, SEM and DSC. Semi-IPN hydrogel could entrapped drug molecules better than full-IPN hydrogel. In situ loading method provide loading efficiency higher than post loading method. The release of ibuprofen for 2 hours at pH 7.4 by in situ loading method were 52.13% (full-IPN) and 30.41% (semi-IPN); for post loading method 79.77% (full-IPN) dan 97.10% (semi-IPN). Degradation of full-IPN hydrogel was more difficult than semi-IPN hydrogel at 2 different pH, 1.2 and 7.4.
In this research, the encapsulation of ibuprofen using interpenetrating polymer network (semi- and full-IPN) hydrogel, based on chitosan and poly(N-vinyl-2-pyrrolidone) (PNVP) have been studied. The encapsulation was carried out by post loading and in situ loading method. IPN hydrogel was prepared by crosslinking chitosan and PNVP using acetaldehyde and N,N-metylene-bis-acrylamide (MBA), respectively. The hydrogel contain chitosan:PNVP 70:30 (w/w), 2% acetaldehyde 0.1 M, 1% ammonium persulphate (APS) catalyst and 1% MBA. Characterization of the formation of IPN network and microcapsules were evaluated by using FTIR, SEM and DSC. Semi-IPN hydrogel could entrapped drug molecules better than full-IPN hydrogel. In situ loading method provide loading efficiency higher than post loading method. The release of ibuprofen for 2 hours at pH 7.4 by in situ loading method were 52.13% (full-IPN) and 30.41% (semi-IPN); for post loading method 79.77% (full-IPN) dan 97.10% (semi-IPN). Degradation of full-IPN hydrogel was more difficult than semi-IPN hydrogel at 2 different pH, 1.2 and 7.4.