Spectroscopic and fluorescence properties of silver-dye composite nanoparticles
No Thumbnail
Authors
Laban, Bojana B.Vodnik, Vesna
Vujačić, Ana V.
Sovilj, Sofija P.
Jokic, A. B.
Vasić, Vesna M.
Article
Metadata
Show full item recordAbstract
The aim of this work was to investigate the formation of J-aggregates of thiacyanine dye (TC, 5,5-disulfopropyl-3,3-dichlorothiacyanine sodium salt) in the presence of 6 nm spherical silver nanoparticles (Ag NPs) using spectrophotometric and fluorescence methods. The formation of J-aggregates was concentration dependent and characterized by the appearance of the new absorption band with the maximum at 481 nm. Spectrophotometric study of J-aggregate formation and time stability suggested that they were formed on the account of monomer form of TC. Moreover, the stability of J-aggregates increased with the lowering AgNPs concentration. The measurements of fluorescence of the NPs-dye assembly clearly indicated that the fluorescence of TC was quenched by Ag NPs on the concentration dependent manner. The spectrophotometric and fluorescence properties of NPs-dye assembly were found to be quantitatively related to the surface coverage of the dye on the Ag NPs.
Keywords:
silver nanoparticles / cyanine dye / J-aggregation / fluorescence / surface coverageSource:
Russian Journal of Physical Chemistry A, 2013, 87, 13, 2219-2224Funding / projects:
- Studies of enzyme interactions with toxic and pharmacologically active molecules (RS-MESTD-Basic Research (BR or ON)-172023)
DOI: 10.1134/S0036024413130141
ISSN: 0036-0244; 1531-863X
WoS: 000326718200018
Scopus: 2-s2.0-84888145262
Collections
Institution/Community
VinčaTY - JOUR AU - Laban, Bojana B. AU - Vodnik, Vesna AU - Vujačić, Ana V. AU - Sovilj, Sofija P. AU - Jokic, A. B. AU - Vasić, Vesna M. PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5751 AB - The aim of this work was to investigate the formation of J-aggregates of thiacyanine dye (TC, 5,5-disulfopropyl-3,3-dichlorothiacyanine sodium salt) in the presence of 6 nm spherical silver nanoparticles (Ag NPs) using spectrophotometric and fluorescence methods. The formation of J-aggregates was concentration dependent and characterized by the appearance of the new absorption band with the maximum at 481 nm. Spectrophotometric study of J-aggregate formation and time stability suggested that they were formed on the account of monomer form of TC. Moreover, the stability of J-aggregates increased with the lowering AgNPs concentration. The measurements of fluorescence of the NPs-dye assembly clearly indicated that the fluorescence of TC was quenched by Ag NPs on the concentration dependent manner. The spectrophotometric and fluorescence properties of NPs-dye assembly were found to be quantitatively related to the surface coverage of the dye on the Ag NPs. T2 - Russian Journal of Physical Chemistry A T1 - Spectroscopic and fluorescence properties of silver-dye composite nanoparticles VL - 87 IS - 13 SP - 2219 EP - 2224 DO - 10.1134/S0036024413130141 ER -
@article{ author = "Laban, Bojana B. and Vodnik, Vesna and Vujačić, Ana V. and Sovilj, Sofija P. and Jokic, A. B. and Vasić, Vesna M.", year = "2013", abstract = "The aim of this work was to investigate the formation of J-aggregates of thiacyanine dye (TC, 5,5-disulfopropyl-3,3-dichlorothiacyanine sodium salt) in the presence of 6 nm spherical silver nanoparticles (Ag NPs) using spectrophotometric and fluorescence methods. The formation of J-aggregates was concentration dependent and characterized by the appearance of the new absorption band with the maximum at 481 nm. Spectrophotometric study of J-aggregate formation and time stability suggested that they were formed on the account of monomer form of TC. Moreover, the stability of J-aggregates increased with the lowering AgNPs concentration. The measurements of fluorescence of the NPs-dye assembly clearly indicated that the fluorescence of TC was quenched by Ag NPs on the concentration dependent manner. The spectrophotometric and fluorescence properties of NPs-dye assembly were found to be quantitatively related to the surface coverage of the dye on the Ag NPs.", journal = "Russian Journal of Physical Chemistry A", title = "Spectroscopic and fluorescence properties of silver-dye composite nanoparticles", volume = "87", number = "13", pages = "2219-2224", doi = "10.1134/S0036024413130141" }
Laban, B. B., Vodnik, V., Vujačić, A. V., Sovilj, S. P., Jokic, A. B.,& Vasić, V. M.. (2013). Spectroscopic and fluorescence properties of silver-dye composite nanoparticles. in Russian Journal of Physical Chemistry A, 87(13), 2219-2224. https://doi.org/10.1134/S0036024413130141
Laban BB, Vodnik V, Vujačić AV, Sovilj SP, Jokic AB, Vasić VM. Spectroscopic and fluorescence properties of silver-dye composite nanoparticles. in Russian Journal of Physical Chemistry A. 2013;87(13):2219-2224. doi:10.1134/S0036024413130141 .
Laban, Bojana B., Vodnik, Vesna, Vujačić, Ana V., Sovilj, Sofija P., Jokic, A. B., Vasić, Vesna M., "Spectroscopic and fluorescence properties of silver-dye composite nanoparticles" in Russian Journal of Physical Chemistry A, 87, no. 13 (2013):2219-2224, https://doi.org/10.1134/S0036024413130141 . .