Photophysical studies of the interactions of poly(amidoamine) generation zero (PAMAM G0) with copper and zinc ions

Z. E. López-Cabaña, O. Valdés, C. E. Vergara, M. B. Camarada, F. M. Nachtigall, F. D. González-Nilo, Leonardo S. Santos

Resultado de la investigación: Article

6 Citas (Scopus)

Resumen

This study reports the photophysical behavior of poly(amidoamine) generation zero (PAMAM G0) in the presence of Cu(II) and Zn(II) ions in aqueous solutions using absorption and fluorescence spectroscopy. Theoretical and experimental results confirmed the presence of a strong covalent metal-ligand interaction between PAMAM G0 and copper ion that favored the formation of a ligand-metal charge transfer band coordination complex. In the case of Zn(II), no complex formation with PAMAM G0 was registered. Structure analysis identified the presence of aggregate like PAMAM G0-Zn moieties that generated an enhancement in the fluorescence emission of PAMAM G0.

Idioma originalEnglish
Páginas (desde-hasta)23-30
Número de páginas8
PublicaciónJournal of Luminescence
Volumen164
DOI
EstadoPublished - 1 ago 2015

Huella dactilar

Zinc
Copper
zinc
Metals
Ions
Ligands
copper
fluorescence
ligands
Fluorescence Spectrometry
Coordination Complexes
Fluorescence spectroscopy
Absorption spectroscopy
metals
Charge transfer
absorption spectroscopy
ions
Fluorescence
charge transfer
interactions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Chemistry(all)
  • Biochemistry
  • Biophysics

Citar esto

López-Cabaña, Z. E. ; Valdés, O. ; Vergara, C. E. ; Camarada, M. B. ; Nachtigall, F. M. ; González-Nilo, F. D. ; Santos, Leonardo S. / Photophysical studies of the interactions of poly(amidoamine) generation zero (PAMAM G0) with copper and zinc ions. En: Journal of Luminescence. 2015 ; Vol. 164. pp. 23-30.
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abstract = "This study reports the photophysical behavior of poly(amidoamine) generation zero (PAMAM G0) in the presence of Cu(II) and Zn(II) ions in aqueous solutions using absorption and fluorescence spectroscopy. Theoretical and experimental results confirmed the presence of a strong covalent metal-ligand interaction between PAMAM G0 and copper ion that favored the formation of a ligand-metal charge transfer band coordination complex. In the case of Zn(II), no complex formation with PAMAM G0 was registered. Structure analysis identified the presence of aggregate like PAMAM G0-Zn moieties that generated an enhancement in the fluorescence emission of PAMAM G0.",
keywords = "Copper, PAMAM G0, Zinc",
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Photophysical studies of the interactions of poly(amidoamine) generation zero (PAMAM G0) with copper and zinc ions. / López-Cabaña, Z. E.; Valdés, O.; Vergara, C. E.; Camarada, M. B.; Nachtigall, F. M.; González-Nilo, F. D.; Santos, Leonardo S.

En: Journal of Luminescence, Vol. 164, 01.08.2015, p. 23-30.

Resultado de la investigación: Article

TY - JOUR

T1 - Photophysical studies of the interactions of poly(amidoamine) generation zero (PAMAM G0) with copper and zinc ions

AU - López-Cabaña, Z. E.

AU - Valdés, O.

AU - Vergara, C. E.

AU - Camarada, M. B.

AU - Nachtigall, F. M.

AU - González-Nilo, F. D.

AU - Santos, Leonardo S.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - This study reports the photophysical behavior of poly(amidoamine) generation zero (PAMAM G0) in the presence of Cu(II) and Zn(II) ions in aqueous solutions using absorption and fluorescence spectroscopy. Theoretical and experimental results confirmed the presence of a strong covalent metal-ligand interaction between PAMAM G0 and copper ion that favored the formation of a ligand-metal charge transfer band coordination complex. In the case of Zn(II), no complex formation with PAMAM G0 was registered. Structure analysis identified the presence of aggregate like PAMAM G0-Zn moieties that generated an enhancement in the fluorescence emission of PAMAM G0.

AB - This study reports the photophysical behavior of poly(amidoamine) generation zero (PAMAM G0) in the presence of Cu(II) and Zn(II) ions in aqueous solutions using absorption and fluorescence spectroscopy. Theoretical and experimental results confirmed the presence of a strong covalent metal-ligand interaction between PAMAM G0 and copper ion that favored the formation of a ligand-metal charge transfer band coordination complex. In the case of Zn(II), no complex formation with PAMAM G0 was registered. Structure analysis identified the presence of aggregate like PAMAM G0-Zn moieties that generated an enhancement in the fluorescence emission of PAMAM G0.

KW - Copper

KW - PAMAM G0

KW - Zinc

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U2 - 10.1016/j.jlumin.2015.03.019

DO - 10.1016/j.jlumin.2015.03.019

M3 - Article

AN - SCOPUS:84926212100

VL - 164

SP - 23

EP - 30

JO - Journal of Luminescence

JF - Journal of Luminescence

SN - 0022-2313

ER -