Fluorescence Quenching of 5,5 -Disulfopropyl-3,3 -dichlorothiacyanine Dye Adsorbed on Gold Nanoparticles
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Аутори
Vujačić, Ana V.Vasić, Vesna M.
Dramićanin, Miroslav
Sovilj, Sofija P.
Bibić, Nataša M.
Milonjić, Slobodan K.
Vodnik, Vesna
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Приказ свих података о документуАпстракт
Nanoparticles (NPs) modified with fluorescent cyanine dyes can exhibit fluorescent quenching properties due to energy and/or electron transfer, and these systems have many applications in catalysis, drug delivery, nanoelectronics, medical diagnostics, and chemical sensing. The aim of this work was to investigate the adsorption of cyanine dye 5,5-disulfopropyl-3,3-dichlorothiacyanine (TC) on the surface of citrate capped gold nanoparticles (AuNPs) with the average core sizes of 9, 17, and 30 nm using various experimental techniques. The measurements of fluorescence corrected for inner filter effects (IFE) of the particle dye assembly clearly indicated that the fluorescence of TC was quenched by AuNPs on the concentration dependent 3 manner, and the equilibrium constants for the sorption of TC on the NP surface were calculated. Significant increase of fluorescence quenching was noticed when NP size increased, keeping the concentration of NPs of different size constant. By comparing exper...imental and calculated results for quenching of TC dye fluorescence, we assumed that the maximum quenching was restricted to full monolayer coverage of TC on the NP surface. The conclusion was drawn that the most probable orientation of TC dye molecules on the NP surface was slanted and that the dye approached NP surface with its positively charged thiazole ring.
Извор:
Journal of Physical Chemistry. C, 2013, 117, 13, 6567-6577Финансирање / пројекти:
- Истраживања интеракција ензима са токсичним и фармаколошки активним молекулима (RS-MESTD-Basic Research (BR or ON)-172023)
DOI: 10.1021/jp311015w
ISSN: 1932-7447
WoS: 000317317600010
Scopus: 2-s2.0-84875826969
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Институција/група
VinčaTY - JOUR AU - Vujačić, Ana V. AU - Vasić, Vesna M. AU - Dramićanin, Miroslav AU - Sovilj, Sofija P. AU - Bibić, Nataša M. AU - Milonjić, Slobodan K. AU - Vodnik, Vesna PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5408 AB - Nanoparticles (NPs) modified with fluorescent cyanine dyes can exhibit fluorescent quenching properties due to energy and/or electron transfer, and these systems have many applications in catalysis, drug delivery, nanoelectronics, medical diagnostics, and chemical sensing. The aim of this work was to investigate the adsorption of cyanine dye 5,5-disulfopropyl-3,3-dichlorothiacyanine (TC) on the surface of citrate capped gold nanoparticles (AuNPs) with the average core sizes of 9, 17, and 30 nm using various experimental techniques. The measurements of fluorescence corrected for inner filter effects (IFE) of the particle dye assembly clearly indicated that the fluorescence of TC was quenched by AuNPs on the concentration dependent 3 manner, and the equilibrium constants for the sorption of TC on the NP surface were calculated. Significant increase of fluorescence quenching was noticed when NP size increased, keeping the concentration of NPs of different size constant. By comparing experimental and calculated results for quenching of TC dye fluorescence, we assumed that the maximum quenching was restricted to full monolayer coverage of TC on the NP surface. The conclusion was drawn that the most probable orientation of TC dye molecules on the NP surface was slanted and that the dye approached NP surface with its positively charged thiazole ring. T2 - Journal of Physical Chemistry. C T1 - Fluorescence Quenching of 5,5 -Disulfopropyl-3,3 -dichlorothiacyanine Dye Adsorbed on Gold Nanoparticles VL - 117 IS - 13 SP - 6567 EP - 6577 DO - 10.1021/jp311015w ER -
@article{ author = "Vujačić, Ana V. and Vasić, Vesna M. and Dramićanin, Miroslav and Sovilj, Sofija P. and Bibić, Nataša M. and Milonjić, Slobodan K. and Vodnik, Vesna", year = "2013", abstract = "Nanoparticles (NPs) modified with fluorescent cyanine dyes can exhibit fluorescent quenching properties due to energy and/or electron transfer, and these systems have many applications in catalysis, drug delivery, nanoelectronics, medical diagnostics, and chemical sensing. The aim of this work was to investigate the adsorption of cyanine dye 5,5-disulfopropyl-3,3-dichlorothiacyanine (TC) on the surface of citrate capped gold nanoparticles (AuNPs) with the average core sizes of 9, 17, and 30 nm using various experimental techniques. The measurements of fluorescence corrected for inner filter effects (IFE) of the particle dye assembly clearly indicated that the fluorescence of TC was quenched by AuNPs on the concentration dependent 3 manner, and the equilibrium constants for the sorption of TC on the NP surface were calculated. Significant increase of fluorescence quenching was noticed when NP size increased, keeping the concentration of NPs of different size constant. By comparing experimental and calculated results for quenching of TC dye fluorescence, we assumed that the maximum quenching was restricted to full monolayer coverage of TC on the NP surface. The conclusion was drawn that the most probable orientation of TC dye molecules on the NP surface was slanted and that the dye approached NP surface with its positively charged thiazole ring.", journal = "Journal of Physical Chemistry. C", title = "Fluorescence Quenching of 5,5 -Disulfopropyl-3,3 -dichlorothiacyanine Dye Adsorbed on Gold Nanoparticles", volume = "117", number = "13", pages = "6567-6577", doi = "10.1021/jp311015w" }
Vujačić, A. V., Vasić, V. M., Dramićanin, M., Sovilj, S. P., Bibić, N. M., Milonjić, S. K.,& Vodnik, V.. (2013). Fluorescence Quenching of 5,5 -Disulfopropyl-3,3 -dichlorothiacyanine Dye Adsorbed on Gold Nanoparticles. in Journal of Physical Chemistry. C, 117(13), 6567-6577. https://doi.org/10.1021/jp311015w
Vujačić AV, Vasić VM, Dramićanin M, Sovilj SP, Bibić NM, Milonjić SK, Vodnik V. Fluorescence Quenching of 5,5 -Disulfopropyl-3,3 -dichlorothiacyanine Dye Adsorbed on Gold Nanoparticles. in Journal of Physical Chemistry. C. 2013;117(13):6567-6577. doi:10.1021/jp311015w .
Vujačić, Ana V., Vasić, Vesna M., Dramićanin, Miroslav, Sovilj, Sofija P., Bibić, Nataša M., Milonjić, Slobodan K., Vodnik, Vesna, "Fluorescence Quenching of 5,5 -Disulfopropyl-3,3 -dichlorothiacyanine Dye Adsorbed on Gold Nanoparticles" in Journal of Physical Chemistry. C, 117, no. 13 (2013):6567-6577, https://doi.org/10.1021/jp311015w . .