Study of Photobleaching Mechanism in Methylene Blue Sensitized Gelatin Using a Single Beam UV-Vis. Fibre Optics Spectrophotometer
In the present study, we have investigated the photobleaching of the methylene blue (MB) doped in Gelatin matrix using uv-visible fibre optic spectrophotometer. Illumination of the sample by uv-visible radiation resulted in a decrease of the absorption peak with the increasing of irradiation time...
| Main Authors: | , |
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| Format: | Article |
| Language: | English English |
| Published: |
Universiti Putra Malaysia Press
2005
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| Online Access: | http://psasir.upm.edu.my/id/eprint/3817/1/Pages_from_JST_VOL_13_NO._1-2.pdf |
| _version_ | 1796966626627682304 |
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| author | Sheng, Chan Kok Mat Yunus, W. Mahmood |
| author_facet | Sheng, Chan Kok Mat Yunus, W. Mahmood |
| author_sort | Sheng, Chan Kok |
| collection | UPM |
| description | In the present study, we have investigated the photobleaching of the methylene
blue (MB) doped in Gelatin matrix using uv-visible fibre optic spectrophotometer.
Illumination of the sample by uv-visible radiation resulted in a decrease
of the absorption peak with the increasing of irradiation time. This indicates that
upon irradiation MB dye molecule is photoreduced to its leuco form (colorless)
of MB. The present experimental results indicate a slower photobleaching process
occurring at higher concentration of dye doped in gelatin matrix. This study
shows that the MB doped in gelatin solid matrix opens a new possibility in realtime
holography applications. |
| first_indexed | 2024-03-06T07:02:14Z |
| format | Article |
| id | upm.eprints-3817 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:02:14Z |
| publishDate | 2005 |
| publisher | Universiti Putra Malaysia Press |
| record_format | dspace |
| spelling | upm.eprints-38172013-05-27T07:11:29Z http://psasir.upm.edu.my/id/eprint/3817/ Study of Photobleaching Mechanism in Methylene Blue Sensitized Gelatin Using a Single Beam UV-Vis. Fibre Optics Spectrophotometer Sheng, Chan Kok Mat Yunus, W. Mahmood In the present study, we have investigated the photobleaching of the methylene blue (MB) doped in Gelatin matrix using uv-visible fibre optic spectrophotometer. Illumination of the sample by uv-visible radiation resulted in a decrease of the absorption peak with the increasing of irradiation time. This indicates that upon irradiation MB dye molecule is photoreduced to its leuco form (colorless) of MB. The present experimental results indicate a slower photobleaching process occurring at higher concentration of dye doped in gelatin matrix. This study shows that the MB doped in gelatin solid matrix opens a new possibility in realtime holography applications. Universiti Putra Malaysia Press 2005 Article NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/3817/1/Pages_from_JST_VOL_13_NO._1-2.pdf Sheng, Chan Kok and Mat Yunus, W. Mahmood (2005) Study of Photobleaching Mechanism in Methylene Blue Sensitized Gelatin Using a Single Beam UV-Vis. Fibre Optics Spectrophotometer. Pertanika Journal of Science & Technology, 13 (1). pp. 23-30. ISSN 0128-7680 English |
| spellingShingle | Sheng, Chan Kok Mat Yunus, W. Mahmood Study of Photobleaching Mechanism in Methylene Blue Sensitized Gelatin Using a Single Beam UV-Vis. Fibre Optics Spectrophotometer |
| title | Study of Photobleaching Mechanism in Methylene Blue
Sensitized Gelatin Using a Single Beam UV-Vis.
Fibre Optics Spectrophotometer |
| title_full | Study of Photobleaching Mechanism in Methylene Blue
Sensitized Gelatin Using a Single Beam UV-Vis.
Fibre Optics Spectrophotometer |
| title_fullStr | Study of Photobleaching Mechanism in Methylene Blue
Sensitized Gelatin Using a Single Beam UV-Vis.
Fibre Optics Spectrophotometer |
| title_full_unstemmed | Study of Photobleaching Mechanism in Methylene Blue
Sensitized Gelatin Using a Single Beam UV-Vis.
Fibre Optics Spectrophotometer |
| title_short | Study of Photobleaching Mechanism in Methylene Blue
Sensitized Gelatin Using a Single Beam UV-Vis.
Fibre Optics Spectrophotometer |
| title_sort | study of photobleaching mechanism in methylene blue sensitized gelatin using a single beam uv vis fibre optics spectrophotometer |
| url | http://psasir.upm.edu.my/id/eprint/3817/1/Pages_from_JST_VOL_13_NO._1-2.pdf |
| work_keys_str_mv | AT shengchankok studyofphotobleachingmechanisminmethylenebluesensitizedgelatinusingasinglebeamuvvisfibreopticsspectrophotometer AT matyunuswmahmood studyofphotobleachingmechanisminmethylenebluesensitizedgelatinusingasinglebeamuvvisfibreopticsspectrophotometer |