PH-dependent nano-capturing of tartaric acid using dendrimers

Oana G. Schramm, Xaviera López-Cortés, Leonardo S. Santos, V. Felipe Laurie, Fernando Danilo González Nilo, Michal Krolik, Rainer Fischer, Stefano Di Fiore

Resultado de la investigación: Article

4 Citas (Scopus)

Resumen

The ability of dendrimers to bind to various target molecules through non-covalent interactions was used to capture water soluble organic reagents, such as tartaric acid (TA), from different matrices, i.e. aqueous solutions and wine samples. The influence of the pH, dendrimer type, generation and feeding concentration on the host-guest complexation of TA was investigated. The maximum binding capacity of TA in aqueous solutions was achieved by amine end-capped dendrimers at pH 5. At extreme pH values of 2 and 11, the binding of TA dropped strikingly, demonstrating the pH-dependency underlying the host-guest interactions. The linear correlation between the maximum binding capacity of TA at pH 5 and the number of primary amine groups on the surface of PAMAM and PPI dendrimers strongly indicated that host-guest complex formation between TA and dendrimers is largely dependent on electrostatic interactions. Molecular simulations confirmed the predominant electrostatic nature of the interactions between TA and the amine end-capped dendrimers and also provided important information on the spatial distribution of TA within the PAMAM G5 dendrimer. All these results designate dendrimers as potential nano-capturing systems for the removal/recovery of TA from complex matrices such as wine, industrial waste or fruit juices.

Idioma originalEnglish
Páginas (desde-hasta)600-608
Número de páginas9
PublicaciónSoft Matter
Volumen10
N.º4
DOI
EstadoPublished - 28 ene 2014

Huella dactilar

Dendrimers
dendrimers
acids
Amines
wines
amines
Wine
Static Electricity
plan position indicators
Fruit juices
interactions
electrostatics
industrial wastes
aqueous solutions
juices
Industrial Waste
tartaric acid
fruits
matrices
Coulomb interactions

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Medicine(all)

Citar esto

Schramm, O. G., López-Cortés, X., Santos, L. S., Laurie, V. F., González Nilo, F. D., Krolik, M., ... Di Fiore, S. (2014). PH-dependent nano-capturing of tartaric acid using dendrimers. Soft Matter, 10(4), 600-608. https://doi.org/10.1039/c3sm52255e
Schramm, Oana G. ; López-Cortés, Xaviera ; Santos, Leonardo S. ; Laurie, V. Felipe ; González Nilo, Fernando Danilo ; Krolik, Michal ; Fischer, Rainer ; Di Fiore, Stefano. / PH-dependent nano-capturing of tartaric acid using dendrimers. En: Soft Matter. 2014 ; Vol. 10, N.º 4. pp. 600-608.
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Schramm, OG, López-Cortés, X, Santos, LS, Laurie, VF, González Nilo, FD, Krolik, M, Fischer, R & Di Fiore, S 2014, 'PH-dependent nano-capturing of tartaric acid using dendrimers', Soft Matter, vol. 10, n.º 4, pp. 600-608. https://doi.org/10.1039/c3sm52255e

PH-dependent nano-capturing of tartaric acid using dendrimers. / Schramm, Oana G.; López-Cortés, Xaviera; Santos, Leonardo S.; Laurie, V. Felipe; González Nilo, Fernando Danilo; Krolik, Michal; Fischer, Rainer; Di Fiore, Stefano.

En: Soft Matter, Vol. 10, N.º 4, 28.01.2014, p. 600-608.

Resultado de la investigación: Article

TY - JOUR

T1 - PH-dependent nano-capturing of tartaric acid using dendrimers

AU - Schramm, Oana G.

AU - López-Cortés, Xaviera

AU - Santos, Leonardo S.

AU - Laurie, V. Felipe

AU - González Nilo, Fernando Danilo

AU - Krolik, Michal

AU - Fischer, Rainer

AU - Di Fiore, Stefano

PY - 2014/1/28

Y1 - 2014/1/28

N2 - The ability of dendrimers to bind to various target molecules through non-covalent interactions was used to capture water soluble organic reagents, such as tartaric acid (TA), from different matrices, i.e. aqueous solutions and wine samples. The influence of the pH, dendrimer type, generation and feeding concentration on the host-guest complexation of TA was investigated. The maximum binding capacity of TA in aqueous solutions was achieved by amine end-capped dendrimers at pH 5. At extreme pH values of 2 and 11, the binding of TA dropped strikingly, demonstrating the pH-dependency underlying the host-guest interactions. The linear correlation between the maximum binding capacity of TA at pH 5 and the number of primary amine groups on the surface of PAMAM and PPI dendrimers strongly indicated that host-guest complex formation between TA and dendrimers is largely dependent on electrostatic interactions. Molecular simulations confirmed the predominant electrostatic nature of the interactions between TA and the amine end-capped dendrimers and also provided important information on the spatial distribution of TA within the PAMAM G5 dendrimer. All these results designate dendrimers as potential nano-capturing systems for the removal/recovery of TA from complex matrices such as wine, industrial waste or fruit juices.

AB - The ability of dendrimers to bind to various target molecules through non-covalent interactions was used to capture water soluble organic reagents, such as tartaric acid (TA), from different matrices, i.e. aqueous solutions and wine samples. The influence of the pH, dendrimer type, generation and feeding concentration on the host-guest complexation of TA was investigated. The maximum binding capacity of TA in aqueous solutions was achieved by amine end-capped dendrimers at pH 5. At extreme pH values of 2 and 11, the binding of TA dropped strikingly, demonstrating the pH-dependency underlying the host-guest interactions. The linear correlation between the maximum binding capacity of TA at pH 5 and the number of primary amine groups on the surface of PAMAM and PPI dendrimers strongly indicated that host-guest complex formation between TA and dendrimers is largely dependent on electrostatic interactions. Molecular simulations confirmed the predominant electrostatic nature of the interactions between TA and the amine end-capped dendrimers and also provided important information on the spatial distribution of TA within the PAMAM G5 dendrimer. All these results designate dendrimers as potential nano-capturing systems for the removal/recovery of TA from complex matrices such as wine, industrial waste or fruit juices.

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VL - 10

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JO - Soft Matter

JF - Soft Matter

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Schramm OG, López-Cortés X, Santos LS, Laurie VF, González Nilo FD, Krolik M y otros. PH-dependent nano-capturing of tartaric acid using dendrimers. Soft Matter. 2014 ene 28;10(4):600-608. https://doi.org/10.1039/c3sm52255e