Publication: Pengembungan Hidrogel Selulosa Bakteria-asid Akrilik : Sensitiviti Terhadap Rangsangan Luar
| dc.contributor.author | Nadia Halib | en_US |
| dc.contributor.author | Mohd Cairul Iqbal Mohd Amin | en_US |
| dc.contributor.author | Ishak Ahmad | en_US |
| dc.contributor.author | Zulkifli Mohamed Hashim | en_US |
| dc.contributor.author | Noriah Jamal | en_US |
| dc.date.accessioned | 2024-05-27T14:35:35Z | |
| dc.date.available | 2024-05-27T14:35:35Z | |
| dc.date.issued | 2009 | |
| dc.date.submitted | -- | |
| dc.description | Volume: 38 Issue: 5 (page 785–791) | en_US |
| dc.description.abstract | This study evaluated various environmental factors affecting the swelling degree of bacterial cellulose-acrylic acid hydrogels. Aqueous bacterial cellulose-acrylic acid (4:1) mixtures were prepared and subjected to electron beam irradiation at 30 and 50 kGy. Swelling rate under influenced of pH, temperature and ionic strength was investigated from 1 to 24 hours. Swelling degree of hydrogels was dependent on irradiation dose: those synthesized at 50 kGy exhibited significant higher swelling degree (p<0.0001) in methanol (619%) compared to water (510%) at room temperature after 24 hours. External ionic strength affected swelling, i.e, elevation in sodium chloride concentration decreased swelling degree. Hydrogels were also sensitive to pH: swelling increased with increasing pH and was optimal at pH 7. Swelling also increased with increasing temperature from 25¡C to 50¡C. In conclusion, the ability of electron irradiated bacterial cellulose-acrylic acid hydrogels to respond to various external environment make it a material to be developed as an active delivery system for drugs, proteins and hormones. | en_US |
| dc.identifier.epage | 791 | |
| dc.identifier.issn | 0126-6039 | |
| dc.identifier.issue | 5 | |
| dc.identifier.spage | 785 | |
| dc.identifier.uri | http://www.ukm.my/jsm/malay_journals/jilid38bil5_2009/Jilid38Bil5_2009_ms785-791.html | |
| dc.identifier.uri | https://oarep.usim.edu.my/handle/123456789/3364 | |
| dc.identifier.volume | 38 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Penerbit UKM | en_US |
| dc.relation.ispartof | Sains Malaysiana | en_US |
| dc.subject | Bacterial cellulose; delivery systems; external stimuli; hydrogels | en_US |
| dc.title | Pengembungan Hidrogel Selulosa Bakteria-asid Akrilik : Sensitiviti Terhadap Rangsangan Luar | en_US |
| dc.title.alternative | Swelling of Bacterial Cellulose-Acrylic Acid Hydrogels: Sensitivity Towards External Stimuli | en_US |
| dc.type | Article | en_US |
| dspace.entity.type | Publication |