Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines
In this work tetrakis–[(thiopheneethoxy) phthalocyaninato] zinc(II) (1), tetrakis–[(thiopheneethoxy) phthalocyaninato] indium (II) chloride (2), tetrakis [(benzo [d]thiazol-2-yl phenoxy) phthalocyaninato] zinc(II) (3), and tetrakis [(benzo [d]thiazol-2-yl phenoxy)phthalocyaninato] indium (II) chlori...
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Journal of Molecular Structure
2020
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| Online Access: | https://www.sciencedirect.com/science/article/abs/pii/S0022286018315242 http://hdl.handle.net/11408/3848 |
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| author | Dube, Edith Nyokong, Tebello |
| author_facet | Dube, Edith Nyokong, Tebello |
| author_sort | Dube, Edith |
| collection | DSpace |
| description | In this work tetrakis–[(thiopheneethoxy) phthalocyaninato] zinc(II) (1), tetrakis–[(thiopheneethoxy) phthalocyaninato] indium (II) chloride (2), tetrakis [(benzo [d]thiazol-2-yl phenoxy) phthalocyaninato] zinc(II) (3), and tetrakis [(benzo [d]thiazol-2-yl phenoxy)phthalocyaninato] indium (II) chloride (4) were linked to both gold nanospheres (AuNSs) and gold nanotriangles (AuNTs) via Au-S and Au-N (the latter for complexes 3 and 4 only) self assembly. The photophysicochemical behaviour of complexes and their conjugates were studied. The conjugates yielded improved triplet and singlet quantum yields, with nanospheres displaying better properties than nanotriangles. The conjugates with a benzothiazole phenoxy substituent also yielded better properties than their thiophene ethoxy counterpart. These conjugates especially those with a benzothiazole phenoxy substituent have potential as photosensitisers for photodynamic therapy applications. |
| format | Article |
| id | ir-11408-3848 |
| institution | My University |
| language | English |
| publishDate | 2020 |
| publisher | Journal of Molecular Structure |
| record_format | dspace |
| spelling | ir-11408-38482022-06-27T13:49:06Z Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines Dube, Edith Nyokong, Tebello metallophthalocyanines thiophene ethoxy singlet oxygen quantum yield gold nanotriangles In this work tetrakis–[(thiopheneethoxy) phthalocyaninato] zinc(II) (1), tetrakis–[(thiopheneethoxy) phthalocyaninato] indium (II) chloride (2), tetrakis [(benzo [d]thiazol-2-yl phenoxy) phthalocyaninato] zinc(II) (3), and tetrakis [(benzo [d]thiazol-2-yl phenoxy)phthalocyaninato] indium (II) chloride (4) were linked to both gold nanospheres (AuNSs) and gold nanotriangles (AuNTs) via Au-S and Au-N (the latter for complexes 3 and 4 only) self assembly. The photophysicochemical behaviour of complexes and their conjugates were studied. The conjugates yielded improved triplet and singlet quantum yields, with nanospheres displaying better properties than nanotriangles. The conjugates with a benzothiazole phenoxy substituent also yielded better properties than their thiophene ethoxy counterpart. These conjugates especially those with a benzothiazole phenoxy substituent have potential as photosensitisers for photodynamic therapy applications. 2020-10-23T11:29:46Z 2020-10-23T11:29:46Z 2019-04-05 Article https://www.sciencedirect.com/science/article/abs/pii/S0022286018315242 http://hdl.handle.net/11408/3848 en Volume 1181, 312 - 320; open Journal of Molecular Structure |
| spellingShingle | metallophthalocyanines thiophene ethoxy singlet oxygen quantum yield gold nanotriangles Dube, Edith Nyokong, Tebello Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines |
| title | Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines |
| title_full | Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines |
| title_fullStr | Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines |
| title_full_unstemmed | Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines |
| title_short | Effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines |
| title_sort | effect of gold nanoparticle shape on the photophysicochemical properties of sulphur containing metallophthalocyanines |
| topic | metallophthalocyanines thiophene ethoxy singlet oxygen quantum yield gold nanotriangles |
| url | https://www.sciencedirect.com/science/article/abs/pii/S0022286018315242 http://hdl.handle.net/11408/3848 |
| work_keys_str_mv | AT dubeedith effectofgoldnanoparticleshapeonthephotophysicochemicalpropertiesofsulphurcontainingmetallophthalocyanines AT nyokongtebello effectofgoldnanoparticleshapeonthephotophysicochemicalpropertiesofsulphurcontainingmetallophthalocyanines |