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Papers by Salvatore Cannistraro

Research paper thumbnail of Cooperativity and hydrogen bond network lifetime in liquid water

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 1995

The lifetime of the H bond network has been calculated as a function of temperature by a statisti... more The lifetime of the H bond network has been calculated as a function of temperature by a statistical five-species model for water in which the H bond cooperativity has been explicitly taken into account. While, on one hand, the Arrhenius behavior of the depolarized Rayleigh scattering data existing in an intermediate temperature region is well reproduced, the model predicts that

Research paper thumbnail of Role of hydrogen-bond cooperativity and free-volume fluctuations in the non-Arrhenius behavior of water self-diffusion: A continuity-of-states model

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 1994

Some thermodynamic and transport properties of normal and supercooled water have been interpreted... more Some thermodynamic and transport properties of normal and supercooled water have been interpreted in the framework of a dynamic extension of the polychromatic percolation model in which both the recently reported evidence for a temperature-dependent H-bond cooperativity and free-volume fluctuations within the percolative patches are included. The proposed model, which allowed us to fit the experimental self-diffusion data as a

Research paper thumbnail of Solvent Stokes-Einstein violation in aqueous protein solutions

Physical Review E, 1994

The Stokes-Einstein equation is applied to the water self-diffusion coefficient D in human serum ... more The Stokes-Einstein equation is applied to the water self-diffusion coefficient D in human serum albumin protein solutions. A linear trend for D as a function of T/eta is found for all the protein concentrations investigated. However, the indication of a violation of the Stokes-Einstein equation is found in the protein concentration dependence of the effective hydrodynamic radius of water. The

Research paper thumbnail of Simple, low frequency, fast recovery crossed coil probe for pulsed NMR

Applied Magnetic Resonance, 1991

The realization of a crossed coil probe for pulsed NMR showing a recovery time of 5 p.s at 10 MHz... more The realization of a crossed coil probe for pulsed NMR showing a recovery time of 5 p.s at 10 MHz is discussed. The system, which is based on a transitory damping of the transmitter coil and on the simultaneous grounding of the receiver coil, does not need a particular isolation between the two sections.

Research paper thumbnail of 1 H NMR study of water relaxation and self-diffusion in human serum albumin aqueous solutions

Il Nuovo Cimento D, 1991

Summary Water proton spin-lattice relaxation and self-diffusion in aqueous solutions of human se... more Summary Water proton spin-lattice relaxation and self-diffusion in aqueous solutions of human serum albumin have been studied by1H NMR as a function of the protein concentration. Spin-lattice relaxation data, which display a nonlinear behaviour with the protein concentration, could be fitted with a two-phase model taking into account the experimentally determined hydration («bound») water values. Despite a similar trend is registered

Research paper thumbnail of A near-infrared study of hydrogen bonding in human albumin aqueous solutions

Chemical Physics Letters, 1990

The average percentage of H bonds formed in water, as determined by NIR spectroscopy, has been fo... more The average percentage of H bonds formed in water, as determined by NIR spectroscopy, has been found to increase with the amount of human albumin in solution. Such a behaviour could be taken into account by a distribution probability of forming H bonds, exponentially decreasing from the biomolecule-water interface, which was able to explain our previous water-proton NMR self-diffusion data on the same system.

Research paper thumbnail of Hydrogen-bond cooperativity and free-volume effects on normal and supercooled water self-diffusion

Physical Review A, 1992

The interpretation of the experimental self-diffusion data on normal and supercooled water has be... more The interpretation of the experimental self-diffusion data on normal and supercooled water has been revisited in the light of both the recently reported evidence for a temperature-dependent H-bond cooperativity and the free-volume fluctuations within the water percolative patches. The proposed model, which is consistent wth the presence of a continuity of states between liquid and solid phases, was found to

Research paper thumbnail of Observation of Terahertz Vibrations in the Nitrogenase FeMo Cofactor by Femtosecond Pump-Probe Spectroscopy

Angewandte Chemie International Edition, 2010

Research paper thumbnail of Cooperativity and hydrogen bond network lifetime in liquid water

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 1995

The lifetime of the H bond network has been calculated as a function of temperature by a statisti... more The lifetime of the H bond network has been calculated as a function of temperature by a statistical five-species model for water in which the H bond cooperativity has been explicitly taken into account. While, on one hand, the Arrhenius behavior of the depolarized Rayleigh scattering data existing in an intermediate temperature region is well reproduced, the model predicts that

Research paper thumbnail of Role of hydrogen-bond cooperativity and free-volume fluctuations in the non-Arrhenius behavior of water self-diffusion: A continuity-of-states model

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 1994

Some thermodynamic and transport properties of normal and supercooled water have been interpreted... more Some thermodynamic and transport properties of normal and supercooled water have been interpreted in the framework of a dynamic extension of the polychromatic percolation model in which both the recently reported evidence for a temperature-dependent H-bond cooperativity and free-volume fluctuations within the percolative patches are included. The proposed model, which allowed us to fit the experimental self-diffusion data as a

Research paper thumbnail of Solvent Stokes-Einstein violation in aqueous protein solutions

Physical Review E, 1994

The Stokes-Einstein equation is applied to the water self-diffusion coefficient D in human serum ... more The Stokes-Einstein equation is applied to the water self-diffusion coefficient D in human serum albumin protein solutions. A linear trend for D as a function of T/eta is found for all the protein concentrations investigated. However, the indication of a violation of the Stokes-Einstein equation is found in the protein concentration dependence of the effective hydrodynamic radius of water. The

Research paper thumbnail of Simple, low frequency, fast recovery crossed coil probe for pulsed NMR

Applied Magnetic Resonance, 1991

The realization of a crossed coil probe for pulsed NMR showing a recovery time of 5 p.s at 10 MHz... more The realization of a crossed coil probe for pulsed NMR showing a recovery time of 5 p.s at 10 MHz is discussed. The system, which is based on a transitory damping of the transmitter coil and on the simultaneous grounding of the receiver coil, does not need a particular isolation between the two sections.

Research paper thumbnail of 1 H NMR study of water relaxation and self-diffusion in human serum albumin aqueous solutions

Il Nuovo Cimento D, 1991

Summary Water proton spin-lattice relaxation and self-diffusion in aqueous solutions of human se... more Summary Water proton spin-lattice relaxation and self-diffusion in aqueous solutions of human serum albumin have been studied by1H NMR as a function of the protein concentration. Spin-lattice relaxation data, which display a nonlinear behaviour with the protein concentration, could be fitted with a two-phase model taking into account the experimentally determined hydration («bound») water values. Despite a similar trend is registered

Research paper thumbnail of A near-infrared study of hydrogen bonding in human albumin aqueous solutions

Chemical Physics Letters, 1990

The average percentage of H bonds formed in water, as determined by NIR spectroscopy, has been fo... more The average percentage of H bonds formed in water, as determined by NIR spectroscopy, has been found to increase with the amount of human albumin in solution. Such a behaviour could be taken into account by a distribution probability of forming H bonds, exponentially decreasing from the biomolecule-water interface, which was able to explain our previous water-proton NMR self-diffusion data on the same system.

Research paper thumbnail of Hydrogen-bond cooperativity and free-volume effects on normal and supercooled water self-diffusion

Physical Review A, 1992

The interpretation of the experimental self-diffusion data on normal and supercooled water has be... more The interpretation of the experimental self-diffusion data on normal and supercooled water has been revisited in the light of both the recently reported evidence for a temperature-dependent H-bond cooperativity and the free-volume fluctuations within the water percolative patches. The proposed model, which is consistent wth the presence of a continuity of states between liquid and solid phases, was found to

Research paper thumbnail of Observation of Terahertz Vibrations in the Nitrogenase FeMo Cofactor by Femtosecond Pump-Probe Spectroscopy

Angewandte Chemie International Edition, 2010