Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity
Unloaded microspheres were prepared from Polycaprolactone (PCL) using an oil-in water emulsion solvent evaporation method. The microspheres with the size distribution in a range of 150-200 µm were then treated by exposed the microspheres under ultra violet irradiation and simultaneously aerated with...
| Main Authors: | , , , , , , |
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| Format: | Proceeding Paper |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/48518/ http://irep.iium.edu.my/48518/1/icopar.pdf |
| _version_ | 1848783311591178240 |
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| author | Samsudin, Nurhusna Hashim, Yumi Zuhanis Has-Yun Jimat, Dzun Noraini Sopyan, Iis Arifin, Mohd Azmir Mel, Maizirwan Mohd. Salleh, Hamzah |
| author_facet | Samsudin, Nurhusna Hashim, Yumi Zuhanis Has-Yun Jimat, Dzun Noraini Sopyan, Iis Arifin, Mohd Azmir Mel, Maizirwan Mohd. Salleh, Hamzah |
| author_sort | Samsudin, Nurhusna |
| building | IIUM Repository |
| collection | Online Access |
| description | Unloaded microspheres were prepared from Polycaprolactone (PCL) using an oil-in water emulsion solvent evaporation method. The microspheres with the size distribution in a range of 150-200 µm were then treated by exposed the microspheres under ultra violet irradiation and simultaneously aerated with ozone (UV/O3) to modify the surface of the beads. The experimental results on surface modification of PCL revealed that the UV/Ozone treatment introduced hydroxyl and carbonyl group on the beads surface and that was confirmed by FTIR analysis and water contact angle. The existence of carboxyl groups grafted on PCL surface was verified quantitatively by absorbance spectroscopy where Toluidine Blue O was employed to react with carboxyl groups to generate an absorbance at 625nm show that the surface of the microspheres had became more hydrophilic |
| first_indexed | 2025-11-14T16:19:20Z |
| format | Proceeding Paper |
| id | iium-48518 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T16:19:20Z |
| publishDate | 2015 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-485182023-08-29T01:59:24Z http://irep.iium.edu.my/48518/ Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity Samsudin, Nurhusna Hashim, Yumi Zuhanis Has-Yun Jimat, Dzun Noraini Sopyan, Iis Arifin, Mohd Azmir Mel, Maizirwan Mohd. Salleh, Hamzah TP248.13 Biotechnology Unloaded microspheres were prepared from Polycaprolactone (PCL) using an oil-in water emulsion solvent evaporation method. The microspheres with the size distribution in a range of 150-200 µm were then treated by exposed the microspheres under ultra violet irradiation and simultaneously aerated with ozone (UV/O3) to modify the surface of the beads. The experimental results on surface modification of PCL revealed that the UV/Ozone treatment introduced hydroxyl and carbonyl group on the beads surface and that was confirmed by FTIR analysis and water contact angle. The existence of carboxyl groups grafted on PCL surface was verified quantitatively by absorbance spectroscopy where Toluidine Blue O was employed to react with carboxyl groups to generate an absorbance at 625nm show that the surface of the microspheres had became more hydrophilic 2015 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/48518/1/icopar.pdf Samsudin, Nurhusna and Hashim, Yumi Zuhanis Has-Yun and Jimat, Dzun Noraini and Sopyan, Iis and Arifin, Mohd Azmir and Mel, Maizirwan and Mohd. Salleh, Hamzah (2015) Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity. In: 1st UMM International Conference on Pure and Applied Research (UMM-ICoPAR), August 21-22, 2015, Universitas Muhammadiyah Malang (UMM), Jawa Timur, Indonesia.. (Unpublished) |
| spellingShingle | TP248.13 Biotechnology Samsudin, Nurhusna Hashim, Yumi Zuhanis Has-Yun Jimat, Dzun Noraini Sopyan, Iis Arifin, Mohd Azmir Mel, Maizirwan Mohd. Salleh, Hamzah Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity |
| title | Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity |
| title_full | Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity |
| title_fullStr | Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity |
| title_full_unstemmed | Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity |
| title_short | Modification of Polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity |
| title_sort | modification of polycaprolactone microspheres surface by ultra violet/ozone treatment to improve its hydrophilicity |
| topic | TP248.13 Biotechnology |
| url | http://irep.iium.edu.my/48518/ http://irep.iium.edu.my/48518/1/icopar.pdf |