Search

Your search keyword '"Ngoy, Bokolombe Pitchou"' showing total 13 results
Start Over Author "Ngoy, Bokolombe Pitchou"
13 results on '"Ngoy, Bokolombe Pitchou"'

7. Orthogonal photocleavage of a monochromophoric linker

Author

Kammari, Laxminarayana, Solomek, Tom, Ngoy, Bokolombe Pitchou, Heger, Dominik, and Kln, Petr

Subjects
Benzene -- Structure, Benzene -- Chemical properties, Chromophores -- Structure, Chromophores -- Chemical properties, Nitrogen compounds -- Structure, Nitrogen compounds -- Chemical properties, Nitrogen compounds -- Optical properties, Photolysis -- Analysis, Chemistry
Abstract

The application of the 4-acetyl-2-nitrobenzyl moiety as a monochromophoric photocleavage linker is analyzed. The analyses reveal that irradtion process can be used for the selective disconnection of the attached groups from these compounds.

Published
2010

9. Photophysical properties and photodynamic therapy activity of a meso-tetra(4-carboxyphenyl)porphyrin tetramethyl ester–graphene quantum dot conjugate.

Author

Managa, Muthumuni, Ngoy, Bokolombe Pitchou, and Nyokong, Tebello

Subjects
*SILVER sulfide, *METALLOPORPHYRINS, *QUANTUM dots, *PHOTODYNAMIC therapy, *PORPHYRINS
Abstract

Novel meso-tetra(4-carboxyphenyl)porphyrin tetramethyl ester metal derivatives were synthesised and characterized. These derivatives were interacted with graphene quantum dots (GDQs). Spectroscopic evidence that was obtained showed that the resultant conjugates were stable due to the strong π–π stacking interaction between the GQDs and the porphyrins. The fluorescence and singlet oxygen generating behaviour of the porphyrins and the nanoconjugates were investigated following incorporation. The dark toxicity and photodynamic therapy activities of the porphyrins and the nanoconjugates were successfully studied using MCF-7 breast cancer cells. Cell viability for the dark toxicity was more than 90% for all complexes. The PDT activities at the highest concentration of 120 μg ml−1 showed a decrease in cell viability down to 15.2% for the GaClTMPP–GQDs. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

11. Photochemistry of S-Phenacyl Xanthates

Author

Tazhe Veetil, Aneesh, primary, Šolomek, Tomáš, additional, Ngoy, Bokolombe Pitchou, additional, Pavlíková, Nela, additional, Heger, Dominik, additional, and Klán, Petr, additional

Published
2011
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results