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Comez L, Lupi L, Morresi A, et al. More Is Different: Experimental Results on the Effect of Biomolecules on the Dynamics of Hydration Water. J Phys Chem Lett. 2013;4(7):1188-92doi: 10.1021/jz400360v.
Comez, L., Lupi, L., Morresi, A., Paolantoni, M., Sassi, P., & Fioretto, D. (2013). More Is Different: Experimental Results on the Effect of Biomolecules on the Dynamics of Hydration Water. The journal of physical chemistry letters, 4(7), 1188-92. https://doi.org/10.1021/jz400360v
Comez, Lucia, et al. "More Is Different: Experimental Results on the Effect of Biomolecules on the Dynamics of Hydration Water." The journal of physical chemistry letters vol. 4,7 (2013): 1188-92. doi: https://doi.org/10.1021/jz400360v
Comez L, Lupi L, Morresi A, Paolantoni M, Sassi P, Fioretto D. More Is Different: Experimental Results on the Effect of Biomolecules on the Dynamics of Hydration Water. J Phys Chem Lett. 2013 Apr 04;4(7):1188-92. doi: 10.1021/jz400360v. Epub 2013 Mar 25. PMID: 26282040.
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J Phys Chem Lett. 2013 Apr 04;4(7):1188-92. doi: 10.1021/jz400360v. Epub 2013 Mar 25.

More Is Different: Experimental Results on the Effect of Biomolecules on the Dynamics of Hydration Water.

The journal of physical chemistry letters

Lucia Comez, Laura Lupi, Assunta Morresi, Marco Paolantoni, Paola Sassi, Daniele Fioretto

Affiliations

  1. †Dipartimento di Fisica and ‡IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy.
  2. §Dipartimento di Chimica and ?Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy.

PMID: 26282040 DOI: 10.1021/jz400360v

Abstract

Biological interfaces characterized by a complex mixture of hydrophobic, hydrophilic, or charged moieties interfere with the cooperative rearrangement of the hydrogen-bond network of water. In the present study, this solute-induced dynamical perturbation is investigated by extended frequency range depolarized light scattering experiments on an aqueous solution of a variety of systems of different nature and complexity such as small hydrophobic and hydrophilic molecules, amino acids, dipeptides, and proteins. Our results suggest that a reductionist approach is not adequate to describe the rearrangement of hydration water because a significant increase of the dynamical retardation and extension of the perturbation occurs when increasing the chemical complexity of the solute.

Keywords: H-bond network; biological interfaces; biological water; depolarized light scattering; hydration water; water diffusion

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