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Abstract:

Single-molecule (SM) fluorescence microscopy was used to investigate the photochromic fluorescent system spiropyran-merocyanine (SP ↔ MC) interacting with gold nanoparticles (AuNPs). We observe a significant increase in the brightness of the emissive MC form, in the duration of its ON time, and in the total number of emitted photons. The spatial distribution of SMs with improved photophysical performance was obtained with 40 nm precision relative to the nearest AuNP. We demonstrate that even photochromic systems with poor photochemical performance for SM can become suitable for long time monitoring and high performance microscopy by interaction with metallic NP. © 2014 American Chemical Society.

Registro:

Documento: Artículo
Título:Mapping the fluorescence performance of a photochromic-fluorescent system coupled with gold nanoparticles at the single-molecule-single-particle level
Autor:Simoncelli, S.; Roberti, M.J.; Araoz, B.; Bossi, M.L.; Aramendía, P.F.
Filiación:Centro de Investigaciones en Bionanociencias (CIBION-CONICET), Godoy Cruz 2390, 1425 Buenos Aires, Argentina
Instituto de Química Física de Materiales, Ambiente y Energía, Ciudad Universitaria, Pabellón 2, 1428 Buenos Aires, Argentina
Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón 2, 1428 Buenos Aires, Argentina
European Molecular Biology Laboratory, EMBL, Heidelberg, Germany
Palabras clave:Fluorescence; Fluorescence microscopy; Gold; Metal nanoparticles; Molecules; Emitted photons; Fluorescent systems; Gold nanoparticle; Gold Nanoparticles; Photochromic systems; Photophysical performance; Single-molecule; Time monitoring; Photochromism; gold nanoparticle; merocyanine; benzopyran derivative; fluorescent dye; gold; indole derivative; metal nanoparticle; nitro derivative; spiropyran; accuracy; article; bleaching; brightness; controlled study; fluorescence microscopy; molecular interaction; photochemistry; photon; thermostability; chemistry; fluorescence; fluorescence microscopy; Benzopyrans; Fluorescence; Fluorescent Dyes; Gold; Indoles; Metal Nanoparticles; Microscopy, Fluorescence; Nitro Compounds
Año:2014
Volumen:136
Número:19
Página de inicio:6878
Página de fin:6880
DOI: http://dx.doi.org/10.1021/ja5025657
Título revista:Journal of the American Chemical Society
Título revista abreviado:J. Am. Chem. Soc.
ISSN:00027863
CODEN:JACSA
CAS:merocyanine, 62796-23-0; gold, 7440-57-5; Benzopyrans; Fluorescent Dyes; Gold; Indoles; merocyanine; Nitro Compounds; spiropyran
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027863_v136_n19_p6878_Simoncelli

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Citas:

---------- APA ----------
Simoncelli, S., Roberti, M.J., Araoz, B., Bossi, M.L. & Aramendía, P.F. (2014) . Mapping the fluorescence performance of a photochromic-fluorescent system coupled with gold nanoparticles at the single-molecule-single-particle level. Journal of the American Chemical Society, 136(19), 6878-6880.
http://dx.doi.org/10.1021/ja5025657
---------- CHICAGO ----------
Simoncelli, S., Roberti, M.J., Araoz, B., Bossi, M.L., Aramendía, P.F. "Mapping the fluorescence performance of a photochromic-fluorescent system coupled with gold nanoparticles at the single-molecule-single-particle level" . Journal of the American Chemical Society 136, no. 19 (2014) : 6878-6880.
http://dx.doi.org/10.1021/ja5025657
---------- MLA ----------
Simoncelli, S., Roberti, M.J., Araoz, B., Bossi, M.L., Aramendía, P.F. "Mapping the fluorescence performance of a photochromic-fluorescent system coupled with gold nanoparticles at the single-molecule-single-particle level" . Journal of the American Chemical Society, vol. 136, no. 19, 2014, pp. 6878-6880.
http://dx.doi.org/10.1021/ja5025657
---------- VANCOUVER ----------
Simoncelli, S., Roberti, M.J., Araoz, B., Bossi, M.L., Aramendía, P.F. Mapping the fluorescence performance of a photochromic-fluorescent system coupled with gold nanoparticles at the single-molecule-single-particle level. J. Am. Chem. Soc. 2014;136(19):6878-6880.
http://dx.doi.org/10.1021/ja5025657