“Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide
Zn octacarboxy phthalocyanine-reduced graphene oxide or graphene oxide conjugates were characterized by absorption spectroscopy, transmission electron microscopy, fluorescence spectroscopy, X-ray diffraction, thermo gravimetric analysis and X-ray photon spectroscopy. The presence of reduced graphene...
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Elsevier
2018
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| Online Access: | https://www.infona.pl/resource/bwmeta1.element.elsevier-3bd70787-4885-342e-8b4a-40b93149db70 http://hdl.handle.net/11408/3296 |
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| author | Shumba, Munyaradzi Mashazi, Philani Nyokong, Tebello |
| author_facet | Shumba, Munyaradzi Mashazi, Philani Nyokong, Tebello |
| author_sort | Shumba, Munyaradzi |
| collection | DSpace |
| description | Zn octacarboxy phthalocyanine-reduced graphene oxide or graphene oxide conjugates were characterized by absorption spectroscopy, transmission electron microscopy, fluorescence spectroscopy, X-ray diffraction, thermo gravimetric analysis and X-ray photon spectroscopy. The presence of reduced graphene oxide or graphene oxide resulted in the quenching (turn on) of Zn octacarboxy phthalocyanine fluorescence which can be explained by photoinduced electron transfer. Zn octacarboxy phthalocyanine-reduced graphene oxide or graphene oxide conjugates “turned on” fluorescence showed a linear response to hydrogen peroxide hence their potential to be used as sensors. The nanoprobe developed showed high selectivity towards hydrogen peroxide in the presence of physiological interferences. |
| format | Article |
| id | ir-11408-3296 |
| institution | My University |
| language | English |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | ir-11408-32962022-06-27T13:49:06Z “Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide Shumba, Munyaradzi Mashazi, Philani Nyokong, Tebello Reduced graphene oxide nanosheets Photoinduced electron transfer Fluorescence enhancement Zn octacarboxy phthalocyanine-reduced graphene oxide or graphene oxide conjugates were characterized by absorption spectroscopy, transmission electron microscopy, fluorescence spectroscopy, X-ray diffraction, thermo gravimetric analysis and X-ray photon spectroscopy. The presence of reduced graphene oxide or graphene oxide resulted in the quenching (turn on) of Zn octacarboxy phthalocyanine fluorescence which can be explained by photoinduced electron transfer. Zn octacarboxy phthalocyanine-reduced graphene oxide or graphene oxide conjugates “turned on” fluorescence showed a linear response to hydrogen peroxide hence their potential to be used as sensors. The nanoprobe developed showed high selectivity towards hydrogen peroxide in the presence of physiological interferences. 2018-11-02T08:39:14Z 2018-11-02T08:39:14Z 2016 Article 0022-2313 https://www.infona.pl/resource/bwmeta1.element.elsevier-3bd70787-4885-342e-8b4a-40b93149db70 http://hdl.handle.net/11408/3296 en Journal of Luminescence;Vol. 170: p. 317-324 open Elsevier |
| spellingShingle | Reduced graphene oxide nanosheets Photoinduced electron transfer Fluorescence enhancement Shumba, Munyaradzi Mashazi, Philani Nyokong, Tebello “Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide |
| title | “Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide |
| title_full | “Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide |
| title_fullStr | “Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide |
| title_full_unstemmed | “Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide |
| title_short | “Turn on” fluorescence enhancement of Zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide |
| title_sort | “turn on” fluorescence enhancement of zn octacarboxyphthaloyanine-graphene oxide conjugates by hydrogen peroxide |
| topic | Reduced graphene oxide nanosheets Photoinduced electron transfer Fluorescence enhancement |
| url | https://www.infona.pl/resource/bwmeta1.element.elsevier-3bd70787-4885-342e-8b4a-40b93149db70 http://hdl.handle.net/11408/3296 |
| work_keys_str_mv | AT shumbamunyaradzi turnonfluorescenceenhancementofznoctacarboxyphthaloyaninegrapheneoxideconjugatesbyhydrogenperoxide AT mashaziphilani turnonfluorescenceenhancementofznoctacarboxyphthaloyaninegrapheneoxideconjugatesbyhydrogenperoxide AT nyokongtebello turnonfluorescenceenhancementofznoctacarboxyphthaloyaninegrapheneoxideconjugatesbyhydrogenperoxide |