Unsymmetrically Substituted Nickel Triazatetra-Benzcorrole and Phthalocynanine Complexes: Conjugation to Quantum Dots and Applications as Fluorescent “Turn ON” Sensors
- Adegoke, Oluwasesan, Nyokong, Tebello
- Authors: Adegoke, Oluwasesan , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7311 , http://hdl.handle.net/10962/d1020403
- Description: We report on the design and application of fluorescent nanoprobes based on the covalent linking of L-glutathione-capped CdSe@ZnS quantum dots (QDs) to newly synthesized unsymmetrically substituted nickel mercaptosuccinic acid triazatetra-benzcorrole (3) and phthalocyanine (4) complexes. Fluorescence quenching of the QDs occurred on conjugation to complexes 3 or 4. The nanoprobes were selectively screened in the presence of different cations and Hg2+ showed excellent affinity in “turning ON” the fluorescence of the nanoprobes. Experimental results showed that the sensitivity of QDs-4 towards Hg2+ was much higher than that of QDs-3 nanoprobe. The mechanism of reaction has been elucidated based on the ability of Hg2+ to coordinate with the sulphur atom of the Ni complex ring and apparently “turn ON” the fluorescence of the linked QDs. , Original publication is available at http://dx.doi.org/10.1007/s10895-013-1317-4
- Full Text: false
- Authors: Adegoke, Oluwasesan , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7311 , http://hdl.handle.net/10962/d1020403
- Description: We report on the design and application of fluorescent nanoprobes based on the covalent linking of L-glutathione-capped CdSe@ZnS quantum dots (QDs) to newly synthesized unsymmetrically substituted nickel mercaptosuccinic acid triazatetra-benzcorrole (3) and phthalocyanine (4) complexes. Fluorescence quenching of the QDs occurred on conjugation to complexes 3 or 4. The nanoprobes were selectively screened in the presence of different cations and Hg2+ showed excellent affinity in “turning ON” the fluorescence of the nanoprobes. Experimental results showed that the sensitivity of QDs-4 towards Hg2+ was much higher than that of QDs-3 nanoprobe. The mechanism of reaction has been elucidated based on the ability of Hg2+ to coordinate with the sulphur atom of the Ni complex ring and apparently “turn ON” the fluorescence of the linked QDs. , Original publication is available at http://dx.doi.org/10.1007/s10895-013-1317-4
- Full Text: false
Very Urgent
- Authors: Cooke, Jack
- Subjects: McGregor, Chris--1936-1990 , Pukwana, Dudu , Moholo, Louis T.--1940- , Blue Notes (Musical group : South Africa) , Jazz , Jazz musicians
- Language: English
- Type: Article
- Identifier: vital:13520 , http://hdl.handle.net/10962/d1006097 , McGregor, Chris--1936-1990 , Pukwana, Dudu , Moholo, Louis T.--1940- , Blue Notes (Musical group : South Africa) , Jazz , Jazz musicians
- Description: Photocopied article from the magazine Jazz Monthly about Chris McGregor's Blue Notes recording "Very Urgent" (Polydor).
- Full Text:
- Authors: Cooke, Jack
- Subjects: McGregor, Chris--1936-1990 , Pukwana, Dudu , Moholo, Louis T.--1940- , Blue Notes (Musical group : South Africa) , Jazz , Jazz musicians
- Language: English
- Type: Article
- Identifier: vital:13520 , http://hdl.handle.net/10962/d1006097 , McGregor, Chris--1936-1990 , Pukwana, Dudu , Moholo, Louis T.--1940- , Blue Notes (Musical group : South Africa) , Jazz , Jazz musicians
- Description: Photocopied article from the magazine Jazz Monthly about Chris McGregor's Blue Notes recording "Very Urgent" (Polydor).
- Full Text:
Vice-Chancellor's Annual Review 2004
- Language: English
- Type: Article
- Identifier: vital:7169 , http://hdl.handle.net/10962/d1006071
- Description: The highlight of 2004 was the award of both the Vice-Chancellor's Senior Research Award and the SABC2 Shoprite-Checkers Woman of the Year Award (Science and Technology) to Professor Tebello Nyokong, whose research on the development of photosensitisers for photodynamic cancer therapy has received considerable attention.
- Full Text:
- Language: English
- Type: Article
- Identifier: vital:7169 , http://hdl.handle.net/10962/d1006071
- Description: The highlight of 2004 was the award of both the Vice-Chancellor's Senior Research Award and the SABC2 Shoprite-Checkers Woman of the Year Award (Science and Technology) to Professor Tebello Nyokong, whose research on the development of photosensitisers for photodynamic cancer therapy has received considerable attention.
- Full Text:
Virgin Venture, one year on continued
- Unknown
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Brotherhood of Breath (Musical group) , Ellington, Duke, 1899-1974. , Country Cooking (Musical group)
- Language: English
- Type: Article
- Identifier: vital:13749 , http://hdl.handle.net/10962/d1012764
- Description: Photocopied article from the magazine Music and Musicians about "Country Cooking", the latest recording of Chris McGregor's Brotherhood of Breath which was influenced by Duke Ellington.
- Full Text:
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Brotherhood of Breath (Musical group) , Ellington, Duke, 1899-1974. , Country Cooking (Musical group)
- Language: English
- Type: Article
- Identifier: vital:13749 , http://hdl.handle.net/10962/d1012764
- Description: Photocopied article from the magazine Music and Musicians about "Country Cooking", the latest recording of Chris McGregor's Brotherhood of Breath which was influenced by Duke Ellington.
- Full Text:
Vivid on-the-spot sketches by young Rand student
- Unknown
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Burwitz, Nils , Jazz at the Playhouse
- Language: English
- Type: Article
- Identifier: vital:13750 , http://hdl.handle.net/10962/d1012765
- Description: Photocopied article from the South African newspaper The Star about a young student, Nils Burwitz, drawing music sketches. About twenty sketches will be on show at "Jazz at the Playhouse". One of the sketches is accompanying the article.
- Full Text:
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Burwitz, Nils , Jazz at the Playhouse
- Language: English
- Type: Article
- Identifier: vital:13750 , http://hdl.handle.net/10962/d1012765
- Description: Photocopied article from the South African newspaper The Star about a young student, Nils Burwitz, drawing music sketches. About twenty sketches will be on show at "Jazz at the Playhouse". One of the sketches is accompanying the article.
- Full Text:
Westbrook's massive
- Authors: Atkins, Ronald
- Subjects: McGregor, Chris -- 1936-1990 , Brotherhood of Breath (Musical group) , Jazz , Jazz musician , Westbrook, Mike , Wilkerson, Edward , Marsalis, Wynton , Corea, Chick
- Language: English
- Type: Article
- Identifier: vital:13479 , http://hdl.handle.net/10962/d1001401 , McGregor, Chris -- 1936-1990 , Brotherhood of Breath (Musical group) , Jazz , Jazz musician , Westbrook, Mike , Wilkerson, Edward , Marsalis, Wynton , Corea, Chick
- Description: Photocopied article about jazz recordings by Mike Westbrook, Chris McGregor's Brotherhood of Breath, Wynton Marsalis, Chick Corea and Edward Wilkerson.
- Full Text:
- Authors: Atkins, Ronald
- Subjects: McGregor, Chris -- 1936-1990 , Brotherhood of Breath (Musical group) , Jazz , Jazz musician , Westbrook, Mike , Wilkerson, Edward , Marsalis, Wynton , Corea, Chick
- Language: English
- Type: Article
- Identifier: vital:13479 , http://hdl.handle.net/10962/d1001401 , McGregor, Chris -- 1936-1990 , Brotherhood of Breath (Musical group) , Jazz , Jazz musician , Westbrook, Mike , Wilkerson, Edward , Marsalis, Wynton , Corea, Chick
- Description: Photocopied article about jazz recordings by Mike Westbrook, Chris McGregor's Brotherhood of Breath, Wynton Marsalis, Chick Corea and Edward Wilkerson.
- Full Text:
Western Alumna inspiring catalyst
- University of Western Ontario
- Authors: University of Western Ontario
- Subjects: Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7172 , http://hdl.handle.net/10962/d1006078 , Nyokong, Tebello
- Description: University of Western Ontario President's Report 2004
- Full Text:
- Authors: University of Western Ontario
- Subjects: Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7172 , http://hdl.handle.net/10962/d1006078 , Nyokong, Tebello
- Description: University of Western Ontario President's Report 2004
- Full Text:
White in top African jazz concert
- Unknown
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Blue Notes (Musical group : South Africa) , Matshikiza, Pat , Ngwenya, Velly
- Language: English
- Type: Article
- Identifier: vital:13751 , http://hdl.handle.net/10962/d1012766
- Description: Photocopied article about Chris McGregor being at the top of African musicians.
- Full Text:
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Blue Notes (Musical group : South Africa) , Matshikiza, Pat , Ngwenya, Velly
- Language: English
- Type: Article
- Identifier: vital:13751 , http://hdl.handle.net/10962/d1012766
- Description: Photocopied article about Chris McGregor being at the top of African musicians.
- Full Text:
Wild horns
- Unknown
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Pukwana, Dudu , Feza, Mongezi , Moholo, Louis T.--1940- , Dyani, Johnny Mbizo , Beer, Ronnie
- Language: English
- Type: Article
- Identifier: vital:13752 , http://hdl.handle.net/10962/d1012767
- Description: Photocopied article from Wyvern (Essex University Magazine) about a concert at the University of Essex, England.
- Full Text:
- Authors: Unknown
- Subjects: McGregor, Chris--1936-1990 , Pukwana, Dudu , Feza, Mongezi , Moholo, Louis T.--1940- , Dyani, Johnny Mbizo , Beer, Ronnie
- Language: English
- Type: Article
- Identifier: vital:13752 , http://hdl.handle.net/10962/d1012767
- Description: Photocopied article from Wyvern (Essex University Magazine) about a concert at the University of Essex, England.
- Full Text: