Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study
<p>Suspensions of microcrystals were obtained from an organic fluorescent dye, 4-<mml:math alttext="$n$"> <mml:mi>n</mml:mi> </mml:math>-octylamino-7-nitrobenz-2-oxa-1,3-diazole, by reprecipitation in water in the presence of variou...
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| Format: | Article |
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| Language: | English |
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Wiley
2006-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://www.hindawi.com/GetArticle.aspx?doi=10.1155/IJP/2006/30937 |
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| collection | DOAJ |
| description | <p>Suspensions of microcrystals were obtained from an organic fluorescent dye, 4-<mml:math alttext="$n$"> <mml:mi>n</mml:mi> </mml:math>-octylamino-7-nitrobenz-2-oxa-1,3-diazole, by reprecipitation in water in the presence of various macromolecules: anionic or cationic PAMAM dendrimer, poly(acrylic acid, sodium salt), poly(acrylamide), and calf thymus DNA. The use of these additives allowed the size and shape of the microcrystals to be controlled. A study by UV/vis absorption and fluorescence spectroscopy revealed some common points, but also some interesting differences, in the optical behaviour of the five samples.</p> |
| format | Article |
| id | doaj-art-6deee3a19a374089be1d4dc73f1acd3a |
| institution | OA Journals |
| issn | 1110-662X |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-6deee3a19a374089be1d4dc73f1acd3a2025-08-20T02:06:44ZengWileyInternational Journal of Photoenergy1110-662X2006-01-012006Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study<p>Suspensions of microcrystals were obtained from an organic fluorescent dye, 4-<mml:math alttext="$n$"> <mml:mi>n</mml:mi> </mml:math>-octylamino-7-nitrobenz-2-oxa-1,3-diazole, by reprecipitation in water in the presence of various macromolecules: anionic or cationic PAMAM dendrimer, poly(acrylic acid, sodium salt), poly(acrylamide), and calf thymus DNA. The use of these additives allowed the size and shape of the microcrystals to be controlled. A study by UV/vis absorption and fluorescence spectroscopy revealed some common points, but also some interesting differences, in the optical behaviour of the five samples.</p>http://www.hindawi.com/GetArticle.aspx?doi=10.1155/IJP/2006/30937 |
| spellingShingle | Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study International Journal of Photoenergy |
| title | Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study |
| title_full | Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study |
| title_fullStr | Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study |
| title_full_unstemmed | Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study |
| title_short | Free-standing microcrystals of a fluorescent organic dye: preparation and spectroscopic study |
| title_sort | free standing microcrystals of a fluorescent organic dye preparation and spectroscopic study |
| url | http://www.hindawi.com/GetArticle.aspx?doi=10.1155/IJP/2006/30937 |