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Czasopismo
2013 | 11 | 1 | 111-115
Tytuł artykułu

A close analysis of metal-enhanced fluorescence of tryptophan induced by silver nanoparticles: wavelength emission dependence

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In the last few years, silver nanoparticles have been proposed as a promising alternative for the label-free detection of proteins via metal-enhanced fluorescence. Generally, the aromatic amino acid tryptophan is most frequently used in this type of studies, because the intrinsic fluorescence of proteins is usually dominated by tryptophan emissions. In the present study, we evaluated the fluorescence behavior of tryptophan in the presence of a silver colloid with nanoparticles of 100 nm in diameter. The results showed that a nanoparticles concentration of 32 mg L−1 induced maximum fluorescence enhancement. However, the metal-enhanced fluorescence was dependent on the emission wavelength of tryptophan, and this phenomenon was closely related to the metal surface reabsorption process (inner filter effect), suggesting that the plasmon resonance reabsorption effect should be taken into account in analyses involving protein studies by metal-enhanced fluorescence.
Wydawca

Czasopismo
Rocznik
Tom
11
Numer
1
Strony
111-115
Opis fizyczny
Daty
wydano
2013-01-01
online
2012-10-24
Twórcy
  • Federal University of Grande Dourados — UFGD
  • Federal University of Grande Dourados — UFGD
Bibliografia
  • [1] H. Szmacinski, K. Ray, J.R. Lakowicz, Anal. Biochem. 385, 358 (2009) http://dx.doi.org/10.1016/j.ab.2008.11.025[Crossref]
  • [2] K. Ray, M.H. Chowdhury, H. Szmacinski, J.R. Lakowicz, J. Phys. Chem. C 112, 17957 (2008) http://dx.doi.org/10.1021/jp807025n[Crossref]
  • [3] J. García-Barrasa, J.M. López-de-Luzuriaga, M. Monge, Cent. Eur. J. Chem. 9, 7 (2011) http://dx.doi.org/10.2478/s11532-010-0124-x[Crossref]
  • [4] C.D. Geddes, J.R. Lakowicz, J. Fluoresc. 12, 121 (2002) http://dx.doi.org/10.1023/A:1016875709579[Crossref]
  • [5] J.R. Lakowicz et al., Proc. of SPIE 6099, 609909 (2006) http://dx.doi.org/10.1117/12.673106[Crossref]
  • [6] H. Nabika, S. Deki, J. Phys. Chem. B 107, 9161 (2003) http://dx.doi.org/10.1021/jp035741b[Crossref]
  • [7] Y. Zhang, A. Dragan, C.D. Geddes, J. Phys. Chem. C 113, 12095 (2009) http://dx.doi.org/10.1021/jp9005668[Crossref]
  • [8] K. Aslan, J.R. Lakowicz, C.D. Geddes, Anal. Bioanal. Chem. 382, 926 (2005) http://dx.doi.org/10.1007/s00216-005-3195-3[Crossref]
  • [9] T. Sen, K.K. Haldar, A. Patra, J. Phys. Chem. C 112, 17945 (2008) http://dx.doi.org/10.1021/jp806866r[Crossref]
  • [10] M. Mahato, P. Pal, T. Kamilya, R. Sarkar, A. Chauldhuri, G.B. Talapatra, J. Phys. Chem. B 114, 7062 (2010) http://dx.doi.org/10.1021/jp100188s[Crossref]
  • [11] A. Kandakkathara, I. Utkin, R. Fedosejevs, Appl. Spectrosc. 65, 507 (2011) http://dx.doi.org/10.1366/10-06150[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-012-0139-6
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