1
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Hu K, Shirakashi R. Molecular dynamics study of water rotational relaxation in saccharide solution for the development of bioprotective agent. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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2
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Lupi L, Bracco B, Sassi P, Corezzi S, Morresi A, Fioretto D, Comez L, Paolantoni M. Hydration Dynamics of Model Peptides with Different Hydrophobic Character. Life (Basel) 2022; 12:life12040572. [PMID: 35455063 PMCID: PMC9031890 DOI: 10.3390/life12040572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 11/16/2022] Open
Abstract
The multi-scale dynamics of aqueous solutions of the hydrophilic peptide N-acetyl-glycine-methylamide (NAGMA) have been investigated through extended frequency-range depolarized light scattering (EDLS), which enables the broad-band detection of collective polarizability anisotropy fluctuations. The results have been compared to those obtained for N-acetyl-leucinemethylamide (NALMA), an amphiphilic peptide which shares with NAGMA the same polar backbone, but also contains an apolar group. Our study indicates that the two model peptides induce similar effects on the fast translational dynamics of surrounding water. Both systems slow down the mobility of solvating water molecules by a factor 6–8, with respect to the bulk. Moreover, the two peptides cause a comparable far-reaching spatial perturbation extending to more than two hydration layers in diluted conditions. The observed concentration dependence of the hydration number is explained considering the random superposition of different hydration shells, while no indication of solute aggregation phenomena has been found. The results indicate that the effect on the dynamics of water solvating the amphiphilic peptide is dominated by the hydrophilic backbone. The minor impact of the hydrophobic moiety on hydration features is consistent with structural findings derived by Fourier transform infrared (FTIR) measurements, performed in attenuated total reflectance (ATR) configuration. Additionally, we give evidence that, for both systems, the relaxation mode in the GHz frequency range probed by EDLS is related to solute rotational dynamics. The rotation of NALMA occurs at higher timescales, with respect to the rotation of NAGMA; both processes are significantly slower than the structural dynamics of hydration water, suggesting that solute and solvent motions are uncoupled. Finally, our results do not indicate the presence of super-slow water (relaxation times in the order of tens of picoseconds) around the peptides investigated.
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Affiliation(s)
- Laura Lupi
- Dipartimento di Matematica e Fisica, Università Roma Tre, 00146 Rome, Italy;
| | - Brenda Bracco
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy; (B.B.); (P.S.); (A.M.)
| | - Paola Sassi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy; (B.B.); (P.S.); (A.M.)
| | - Silvia Corezzi
- Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, 06123 Perugia, Italy; (S.C.); (D.F.)
| | - Assunta Morresi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy; (B.B.); (P.S.); (A.M.)
| | - Daniele Fioretto
- Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, 06123 Perugia, Italy; (S.C.); (D.F.)
- IOM-CNR c/o Department of Physics and Geology, Università degli Studi di Perugia, 060123 Perugia, Italy
| | - Lucia Comez
- IOM-CNR c/o Department of Physics and Geology, Università degli Studi di Perugia, 060123 Perugia, Italy
- Correspondence: (L.C.); (M.P.)
| | - Marco Paolantoni
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy; (B.B.); (P.S.); (A.M.)
- Correspondence: (L.C.); (M.P.)
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3
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Hu J, Liao Z, Yano Y, Yamahara H, Tabata H. Broadband Dielectric Spectroscopic Analysis toward Characterization of the Hydration State and Bioprotective Superiority of Trehalose. J Phys Chem B 2022; 126:708-715. [PMID: 35040322 DOI: 10.1021/acs.jpcb.1c09941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alteration of the hydrogen-bond (H-bond) network by trehalose is acknowledged as a bioprotective agent. However, most studies exploring the hydration superiority of the trehalose structure are limited structure are limited by the computational cost or a narrow-range spectrum. In the present study, the structural and dynamical behaviors of the H-bond network of trehalose and maltose solutions were observed and compared with a broadband dielectric spectrum (100 MHz-18 THz) to investigate the influence of the trehalose structure on the bioprotective function. From the relaxation time, the reorientation cooperativity, resonant frequency, and damping constant of water-water vibration, the symmetric structure of trehalose allowed a more significant H-bond strengthening effect and homogeneous aqueous environment. In contrast, the difference in the hydration number between trehalose and maltose was negligible. Thus, the enhanced H-bond strengthening effect and homogeneous aqueous environment owing to the symmetric structure are the essential factors that contribute to the remarkable bioprotective effect of trehalose.
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Affiliation(s)
- Junru Hu
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Zhiqiang Liao
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yasuo Yano
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroyasu Yamahara
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hitoshi Tabata
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.,Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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4
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Rosi BP, Tavagnacco L, Comez L, Sassi P, Ricci M, Buratti E, Bertoldo M, Petrillo C, Zaccarelli E, Chiessi E, Corezzi S. Thermoresponsivity of poly(N-isopropylacrylamide) microgels in water-trehalose solution and its relation to protein behavior. J Colloid Interface Sci 2021; 604:705-718. [PMID: 34280768 DOI: 10.1016/j.jcis.2021.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/21/2021] [Accepted: 07/01/2021] [Indexed: 11/18/2022]
Abstract
HYPOTHESES Additives are commonly used to tune macromolecular conformational transitions. Among additives, trehalose is an excellent bioprotectant and among responsive polymers, PNIPAM is the most studied material. Nevertheless, their interaction mechanism so far has only been hinted without direct investigation, and, crucially, never elucidated in comparison to proteins. Detailed insights would help understand to what extent PNIPAM microgels can effectively be used as synthetic biomimetic materials, to reproduce and study, at the colloidal scale, isolated protein behavior and its sensitivity to interactions with specific cosolvents or cosolutes. EXPERIMENTS The effect of trehalose on the swelling behavior of PNIPAM microgels was monitored by dynamic light scattering; Raman spectroscopy and molecular dynamics simulations were used to explore changes of solvation and dynamics across the swelling-deswelling transition at the molecular scale. FINDINGS Strongly hydrated trehalose molecules develop water-mediated interactions with PNIPAM microgels, thereby preserving polymer hydration below and above the transition while drastically inhibiting local motions of the polymer and of its hydration shell. Our study, for the first time, demonstrates that slowdown of dynamics and preferential exclusion are the principal mechanisms governing trehalose effect on PNIPAM microgels, at odds with preferential adsorption of alcohols, but in full analogy with the behavior observed in trehalose-protein systems.
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Affiliation(s)
- Benedetta Petra Rosi
- Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy
| | - Letizia Tavagnacco
- CNR-ISC, Sapienza Università di Roma, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Lucia Comez
- CNR-IOM, Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy
| | - Paola Sassi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, I-06123 Perugia, Italy
| | - Maria Ricci
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, I-06123 Perugia, Italy
| | - Elena Buratti
- CNR-ISC, Sapienza Università di Roma, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Monica Bertoldo
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università di Ferrara, I-44121 Ferrara, Italy; CNR-ISOF, Area della Ricerca, I-40129 Bologna, Italy
| | - Caterina Petrillo
- Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy
| | - Emanuela Zaccarelli
- CNR-ISC, Sapienza Università di Roma, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Ester Chiessi
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", I-00133 Roma, Italy.
| | - Silvia Corezzi
- Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy.
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5
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Corezzi S, Bracco B, Sassi P, Paolantoni M, Comez L. Protein Hydration in a Bioprotecting Mixture. Life (Basel) 2021; 11:life11100995. [PMID: 34685367 PMCID: PMC8537178 DOI: 10.3390/life11100995] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/10/2021] [Accepted: 09/18/2021] [Indexed: 11/16/2022] Open
Abstract
We combined broad-band depolarized light scattering and infrared spectroscopies to study the properties of hydration water in a lysozyme-trehalose aqueous solution, where trehalose is present above the concentration threshold (30% in weight) relevant for biopreservation. The joint use of the two different techniques, which were sensitive to inter-and intra-molecular degrees of freedom, shed new light on the molecular mechanism underlying the interaction between the three species in the mixture. Thanks to the comparison with the binary solution cases, we were able to show that, under the investigated conditions, the protein, through preferential hydration, remains strongly hydrated even in the ternary mixture. This supported the water entrapment scenario, for which a certain amount of water between protein and sugar protects the biomolecule from damage caused by external agents.
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Affiliation(s)
- Silvia Corezzi
- Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, 06123 Perugia, Italy;
| | - Brenda Bracco
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy; (B.B.); (P.S.)
| | - Paola Sassi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy; (B.B.); (P.S.)
| | - Marco Paolantoni
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy; (B.B.); (P.S.)
- Correspondence: (M.P.); (L.C.)
| | - Lucia Comez
- CNR-IOM at Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, 06123 Perugia, Italy
- Correspondence: (M.P.); (L.C.)
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6
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Sundar S, Sandilya AA, Priya MH. Unraveling the Influence of Osmolytes on Water Hydrogen-Bond Network: From Local Structure to Graph Theory Analysis. J Chem Inf Model 2021; 61:3927-3944. [PMID: 34379415 DOI: 10.1021/acs.jcim.1c00527] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Water structure in aqueous osmolyte solutions, deduced from the slight alteration in the water-water radial distribution function, the decrease in water-water hydrogen bonding, and tetrahedral ordering based only on the orientation of nearest water molecules derived from the molecular dynamics simulations, appears to have been perturbed. A careful analysis, however, reveals that the hydrogen bonding and the tetrahedral ordering around a water molecule in binary solutions remain intact as in neat water when the contribution of osmolyte-water interactions is appropriately incorporated. Furthermore, the distribution of the water binding energies and the water excess chemical potential of solvation in solutions are also pretty much the same as in neat water. Osmolytes are, therefore, well integrated into the hydrogen-bond network of water. Indeed, osmolytes tend to preferentially hydrogen bond with water molecules and their interaction energies are strongly correlated to their hydrogen-bonding capability. The graph network analysis, further, illustrates that osmolytes act as hubs in the percolated hydrogen-bond network of solutions. The degree of hydrogen bonding of osmolytes predominantly determines all of the network properties. Osmolytes like ethanol that form fewer hydrogen bonds than a water molecule disrupt the water hydrogen-bond network, while other osmolytes that form more hydrogen bonds effectively increase the connectivity among water molecules. Our observation of minimal variation in the local structure and the vitality of osmolyte-water hydrogen bonds on the solution network properties clearly imply that the direct interaction between protein and osmolytes is solely responsible for the protein stability. Further, the relevance of hydrogen bonds on solution properties suggests that the hydrogen-bonding interaction among protein, water, and osmolyte could be the key determinant of the protein conformation in solutions.
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Affiliation(s)
- Smrithi Sundar
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Avilasha A Sandilya
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - M Hamsa Priya
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
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7
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Shukla N, Goeks J, Taylor EA, Othon CM. Hydration Dynamics in Solutions of Cyclic Polyhydroxyl Osmolytes. J Phys Chem B 2019; 123:8472-8479. [PMID: 31508961 DOI: 10.1021/acs.jpcb.9b06861] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Simple sugars are remarkably effective at preserving protein and enzymatic structures against thermal and hydrostatic stress. Here, we investigate the hydrodynamic and biopreservative properties of three small cyclic molecules: glucose, myo-inositol, and methyl-α-d-glucopyranoside using circular dichroism spectroscopy and isothermal calorimetry. Using ultrafast fluorescence frequency upconversion spectroscopy, we measure the dynamical retardation of hydration dynamics in cosolute solutions. We find that all three molecules are effective modifiers of hydration dynamics in solution and all are also effective at protecting model protein systems against thermal denaturation. Methyl-α-d-glucopyranoside is found to be the most effective dynamic reducer displaying an approximately 30% increase in solvation relaxation time as compared to water in a cosolute free solution. myo-Inositol and glucose both exhibit a smaller reduction in dynamics with similar magnitudes of concentration dependence. Using these cosolute models, we demonstrate that the thermal enhancement of protein structure does not correlate strongly with either the dynamical reduction of the bulk solution nor with the number of hydrogen bonds a cosolute makes with the solvent. Furthermore, solutions of glucose at twice the concentration of trehalose are shown to have similar magnitudes of dynamical impact. This implies that regulation of hydration dynamics is not a distinguishing characteristic of successful osmolytes. This work highlights the need for further studies and computational analysis to understand the phenomena of preferential exclusion and the contribution of hydration dynamics to protein structural stability.
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Affiliation(s)
| | - Julia Goeks
- Department of Physics , Ripon College , Ripon , Wisconsin 54971 , United States
| | | | - Christina M Othon
- Department of Physics , Ripon College , Ripon , Wisconsin 54971 , United States
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8
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Corezzi S, Paolantoni M, Sassi P, Morresi A, Fioretto D, Comez L. Trehalose-induced slowdown of lysozyme hydration dynamics probed by EDLS spectroscopy. J Chem Phys 2019; 151:015101. [DOI: 10.1063/1.5099588] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Silvia Corezzi
- Dipartimento di Fisica e Geologia, Università di Perugia, 06123 Perugia, Italy
| | - Marco Paolantoni
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, 06123 Perugia, Italy
| | - Paola Sassi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, 06123 Perugia, Italy
| | - Assunta Morresi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, 06123 Perugia, Italy
| | - Daniele Fioretto
- Dipartimento di Fisica e Geologia, Università di Perugia, 06123 Perugia, Italy
| | - Lucia Comez
- IOM-CNR c/o Dipartimento di Fisica e Geologia, Università di Perugia, 06123 Perugia, Italy
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9
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Shiraga K, Adachi A, Nakamura M, Tajima T, Ajito K, Ogawa Y. Characterization of the hydrogen-bond network of water around sucrose and trehalose: Microwave and terahertz spectroscopic study. J Chem Phys 2018; 146:105102. [PMID: 28298096 DOI: 10.1063/1.4978232] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Modification of the water hydrogen bond network imposed by disaccharides is known to serve as a bioprotective agent in living organisms, though its comprehensive understanding is still yet to be reached. In this study, aiming to characterize the dynamical slowing down and destructuring effect of disaccharides, we performed broadband dielectric spectroscopy, ranging from 0.5 GHz to 12 THz, of sucrose and trehalose aqueous solutions. The destructuring effect was examined in two ways (the hydrogen bond fragmentation and disordering) and our result showed that both sucrose and trehalose exhibit an obvious destructuring effect with a similar strength, by fragmenting hydrogen bonds and distorting the tetrahedral-like structure of water. This observation strongly supports a chaotropic (structure-breaking) aspect of disaccharides on the water structure. At the same time, hydration water was found to exhibit slower dynamics and a greater reorientational cooperativity than bulk water because of the strengthened hydrogen bonds. These results lead to the conclusion that strong disaccharide-water hydrogen bonds structurally incompatible with native water-water bonds lead to the rigid but destructured hydrogen bond network around disaccharides. Another important finding in this study is that the greater dynamical slowing down of trehalose was found compared with that of sucrose, at variance with the destructuring effect where no solute dependent difference was observed. This discovery suggests that the exceptionally greater bioprotective impact especially of trehalose among disaccharides is mainly associated with the dynamical slowing down (rather than the destructuring effect).
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Affiliation(s)
- Keiichiro Shiraga
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Aya Adachi
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Masahito Nakamura
- NTT Device Technology Labs, NTT Corporation, Morinosato Wakamiya, Atsugi-shi, Kanagawa 243-0198, Japan
| | - Takuro Tajima
- NTT Device Technology Labs, NTT Corporation, Morinosato Wakamiya, Atsugi-shi, Kanagawa 243-0198, Japan
| | - Katsuhiro Ajito
- NTT Device Technology Labs, NTT Corporation, Morinosato Wakamiya, Atsugi-shi, Kanagawa 243-0198, Japan
| | - Yuichi Ogawa
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
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10
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Perticaroli S, Comez L, Sassi P, Morresi A, Fioretto D, Paolantoni M. Water-like Behavior of Formamide: Jump Reorientation Probed by Extended Depolarized Light Scattering. J Phys Chem Lett 2018; 9:120-125. [PMID: 29243934 DOI: 10.1021/acs.jpclett.7b02943] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Water is a strong self-associated liquid with peculiar properties that crucially depend on H-bonding. As regards its molecular dynamics, only recently has water reorientation been successfully described based on a jump mechanism, which is responsible for the overall H-bonding exchange. Here, using high-resolution broad-band depolarized light scattering, we have investigated the reorientational dynamics of formamide (FA) as a function of concentration from the neat liquid to diluted aqueous solutions. Our main findings indicate that in the diluted regime the water rearrangement can trigger the motion of FA solute molecules, which are forced to reorient at the same rate as water. This highlights an exceptional behavior of FA, which perfectly substitutes water within its network. Besides other fundamental implications connected with the relevance of FA, its water-like behavior provides rare experimental evidence of a solute whose dynamics is completely slaved to the solvent.
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Affiliation(s)
- S Perticaroli
- Shull Wollan Center, a Joint Institute for Neutron Sciences, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
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11
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Shukla N, Pomarico E, Chen L, Chergui M, Othon CM. Retardation of Bulk Water Dynamics by Disaccharide Osmolytes. J Phys Chem B 2016; 120:9477-83. [DOI: 10.1021/acs.jpcb.6b07751] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nimesh Shukla
- Department
of Physics, Wesleyan University, Middletown, Connecticut 06457, United States
| | - Enrico Pomarico
- Laboratoire
de Spectroscopie Ultrarapide (LSU) and Lausanne Centre for Ultrafast
Science (LACUS), École Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Lee Chen
- Department
of Physics, Wesleyan University, Middletown, Connecticut 06457, United States
| | - Majed Chergui
- Laboratoire
de Spectroscopie Ultrarapide (LSU) and Lausanne Centre for Ultrafast
Science (LACUS), École Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Christina M. Othon
- Department
of Physics, Wesleyan University, Middletown, Connecticut 06457, United States
- Molecular
Biophysics Program, Wesleyan University, Middletown, Connecticut 06457, United States
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12
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Comez L, Paolantoni M, Corezzi S, Lupi L, Sassi P, Morresi A, Fioretto D. Aqueous solvation of amphiphilic molecules by extended depolarized light scattering: the case of trimethylamine-N-oxide. Phys Chem Chem Phys 2016; 18:8881-9. [PMID: 26958663 DOI: 10.1039/c5cp04357c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrophilic and hydrophobic interactions strongly affect the solvation dynamics of biomolecules. To understand their role, small model systems are generally employed to simplify the investigations. In this study the amphiphile trimethylamine N-oxide (TMAO) is chosen as an exemplar, and studied by means of extended frequency range depolarized light scattering (EDLS) experiments as a function of solute concentration. This technique proves to be a suitable tool for investigating different aspects of aqueous solvation, being able at the same time to provide information about relaxation processes and vibrational modes of solvent and solute. In the case study of TMAO, we find that the relaxation dynamics of hydration water is moderately retarded compared to the bulk, and the perturbation induced by the solute on surrounding water is confined to the first hydration shell. The results highlight the hydrophobic character of TMAO in its interaction with water. The number of molecules taking part in the solvation process decreases as the solute concentration increases, following a trend consistent with the hydration water-sharing model, and suggesting that aggregation between solute molecules is negligible. Finally, the analysis of the resonant modes in the THz region and the comparison with the corresponding results obtained for the isosteric molecule tert-butyl alcohol (TBA) allow us to provide new insights into the different solvating properties of these two biologically relevant molecules.
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Affiliation(s)
- L Comez
- IOM-CNR c/o Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy. and Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
| | - M Paolantoni
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - S Corezzi
- Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
| | - L Lupi
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, USA
| | - P Sassi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - A Morresi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - D Fioretto
- Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
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13
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14
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Comez L, Perticaroli S, Paolantoni M, Sassi P, Corezzi S, Morresi A, Fioretto D. Concentration dependence of hydration water in a model peptide. Phys Chem Chem Phys 2015; 16:12433-40. [PMID: 24829171 DOI: 10.1039/c4cp00840e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The molecular dynamics of aqueous solutions of a model amphiphilic peptide is studied as a function of concentration by broad-band light scattering experiments. Similarly to protein aqueous solutions, a considerable retardation, of about a factor 6-8, of hydration water dynamics with respect to bulk water is found, showing a slight dependence on solute concentration. Conversely, the average number of water molecules perturbed by the presence of peptide, i.e. the hydration number, appears to be strongly modified by adding solute. Its behaviour, decreasing upon increasing concentration, can be interpreted considering the random close-to-contact condition experienced by solute particles. Overall, the present findings support the view of a "long range" effect of peptides on the surrounding water, extending beyond the first two hydration shells.
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Affiliation(s)
- Lucia Comez
- IOM-CNR c/o Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy.
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15
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Comez L, Paolantoni M, Lupi L, Sassi P, Corezzi S, Morresi A, Fioretto D. Hydrophobic Hydration in Water–tert-Butyl Alcohol Solutions by Extended Depolarized Light Scattering. J Phys Chem B 2014; 119:9236-43. [DOI: 10.1021/jp509854a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. Comez
- IOM-CNR
c/o Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- Dipartimento
di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
| | - M. Paolantoni
- Dipartimento
di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce
di Sotto 8, I-06123 Perugia, Italy
| | - L. Lupi
- Department
of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - P. Sassi
- Dipartimento
di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce
di Sotto 8, I-06123 Perugia, Italy
| | - S. Corezzi
- Dipartimento
di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
| | - A. Morresi
- Dipartimento
di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce
di Sotto 8, I-06123 Perugia, Italy
| | - D. Fioretto
- Dipartimento
di Fisica e Geologia, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- Centro
di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
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16
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Corezzi S, Sassi P, Paolantoni M, Comez L, Morresi A, Fioretto D. Hydration and rotational diffusion of levoglucosan in aqueous solutions. J Chem Phys 2014; 140:184505. [DOI: 10.1063/1.4873575] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Martin DR, Fioretto D, Matyushov DV. Depolarized light scattering and dielectric response of a peptide dissolved in water. J Chem Phys 2014; 140:035101. [DOI: 10.1063/1.4861965] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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18
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Palombo F, Sassi P, Paolantoni M, Barontini C, Morresi A, Giorgini MG. Complex Dynamical Aspects of Organic Electrolyte Solutions. J Phys Chem B 2013; 118:215-25. [DOI: 10.1021/jp4066604] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Francesca Palombo
- School of Physics, University of Exeter , EX4 4QF Exeter, United Kingdom
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19
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20
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Solvent Sharing Models for Non-Interacting Solute Molecules: The Case of Glucose and Trehalose Water Solutions. FOOD BIOPHYS 2013. [DOI: 10.1007/s11483-013-9306-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Perticaroli S, Nakanishi M, Pashkovski E, Sokolov AP. Dynamics of Hydration Water in Sugars and Peptides Solutions. J Phys Chem B 2013; 117:7729-36. [DOI: 10.1021/jp403665w] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stefania Perticaroli
- Chemical and Materials Sciences Division at Oak Ridge National Laboratory,
Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996,
United States
| | - Masahiro Nakanishi
- Chemical and Materials Sciences Division at Oak Ridge National Laboratory,
Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996,
United States
| | - Eugene Pashkovski
- Unilever R&D Trumbull, 40 Merritt Boulevard, Trumbull, Connecticut 06611, United States
| | - Alexei P. Sokolov
- Chemical and Materials Sciences Division at Oak Ridge National Laboratory,
Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996,
United States
- Joint Institute
for Neutron Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee
37831, United States
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22
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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; 4:1188-1192. [PMID: 26282040 DOI: 10.1021/jz400360v] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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.
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Affiliation(s)
- Lucia Comez
- †Dipartimento di Fisica and ‡IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- §Dipartimento di Chimica and ⊥Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Laura Lupi
- †Dipartimento di Fisica and ‡IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- §Dipartimento di Chimica and ⊥Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Assunta Morresi
- †Dipartimento di Fisica and ‡IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- §Dipartimento di Chimica and ⊥Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Marco Paolantoni
- †Dipartimento di Fisica and ‡IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- §Dipartimento di Chimica and ⊥Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Paola Sassi
- †Dipartimento di Fisica and ‡IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- §Dipartimento di Chimica and ⊥Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Daniele Fioretto
- †Dipartimento di Fisica and ‡IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- §Dipartimento di Chimica and ⊥Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
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23
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Corradini D, Strekalova EG, Stanley HE, Gallo P. Microscopic mechanism of protein cryopreservation in an aqueous solution with trehalose. Sci Rep 2013; 3:1218. [PMID: 23390573 PMCID: PMC3565168 DOI: 10.1038/srep01218] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 01/22/2013] [Indexed: 01/15/2023] Open
Abstract
In order to investigate the cryoprotective mechanism of trehalose on proteins, we use molecular dynamics computer simulations to study the microscopic dynamics of water upon cooling in an aqueous solution of lysozyme and trehalose. We find that the presence of trehalose causes global retardation of the dynamics of water. Comparing aqueous solutions of lysozyme with/without trehalose, we observe that the dynamics of water in the hydration layers close to the protein is dramatically slower when trehalose is present in the system. We also analyze the structure of water and trehalose around the lysozyme and find that the trehalose molecules form a cage surrounding the protein that contains very slow water molecules. We conclude that the transient cage of trehalose molecules that entraps and slows the water molecules prevents the crystallisation of protein hydration water upon cooling.
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Affiliation(s)
- Dario Corradini
- Center for Polymer Studies and Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA.
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24
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Lupi L, Comez L, Paolantoni M, Perticaroli S, Sassi P, Morresi A, Ladanyi BM, Fioretto D. Hydration and Aggregation in Mono- and Disaccharide Aqueous Solutions by Gigahertz-to-Terahertz Light Scattering and Molecular Dynamics Simulations. J Phys Chem B 2012. [DOI: 10.1021/jp3079869] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. Lupi
- Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
| | - L. Comez
- Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123,
Perugia, Italy
| | - M. Paolantoni
- Dipartimento
di Chimica, Università di Perugia, Via Elce di Sotto, 8, I-06123 Perugia, Italy
| | - S. Perticaroli
- Dipartimento
di Chimica, Università di Perugia, Via Elce di Sotto, 8, I-06123 Perugia, Italy
| | - P. Sassi
- Dipartimento
di Chimica, Università di Perugia, Via Elce di Sotto, 8, I-06123 Perugia, Italy
| | - A. Morresi
- Dipartimento
di Chimica, Università di Perugia, Via Elce di Sotto, 8, I-06123 Perugia, Italy
| | - B. M. Ladanyi
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872,
United States
| | - D. Fioretto
- Dipartimento di Fisica, Università di Perugia, Via Pascoli, I-06123 Perugia, Italy
- Centro di
Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università of Perugia, via Elce di Sotto 8,
06123 Perugia, Italy
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25
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Winther LR, Qvist J, Halle B. Hydration and Mobility of Trehalose in Aqueous Solution. J Phys Chem B 2012; 116:9196-207. [DOI: 10.1021/jp304982c] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Louise Revsbech Winther
- Department of Biophysical Chemistry, Center for Molecular Protein Science, Lund University, SE-22100 Lund, Sweden
| | - Johan Qvist
- Department of Biophysical Chemistry, Center for Molecular Protein Science, Lund University, SE-22100 Lund, Sweden
| | - Bertil Halle
- Department of Biophysical Chemistry, Center for Molecular Protein Science, Lund University, SE-22100 Lund, Sweden
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26
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Lupi L, Comez L, Paolantoni M, Fioretto D, Ladanyi BM. Dynamics of Biological Water: Insights from Molecular Modeling of Light Scattering in Aqueous Trehalose Solutions. J Phys Chem B 2012; 116:7499-508. [DOI: 10.1021/jp301988f] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Laura Lupi
- Dipartimento di
Fisica, Università degli Studi di Perugia, Via Pascoli, I-06123 Perugia, Italy
| | - Lucia Comez
- Dipartimento di
Fisica, Università degli Studi di Perugia, Via Pascoli, I-06123 Perugia, Italy
- IOM-CNR c/o Dipartimento di Fisica, Università di Perugia, Via Pascoli,
I-06123, Perugia, Italy
| | - Marco Paolantoni
- Dipartimento di Chimica, Università di Perugia, via Elce di Sotto, I-06123
Perugia, Italy
| | - Daniele Fioretto
- Dipartimento di
Fisica, Università degli Studi di Perugia, Via Pascoli, I-06123 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Università of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Branka M. Ladanyi
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872,
United States
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27
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28
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Perticaroli S, Comez L, Paolantoni M, Sassi P, Morresi A, Fioretto D. Extended Frequency Range Depolarized Light Scattering Study of N-Acetyl-leucine-methylamide–Water Solutions. J Am Chem Soc 2011; 133:12063-8. [DOI: 10.1021/ja202272k] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stefania Perticaroli
- Dipartimento di Chimica, Universitá di Perugia, via Elce di Sotto, I-06123 Perugia, Italy
| | - Lucia Comez
- Dipartimento di Fisica, Universitá degli Studi di Perugia, Via Pascoli, I-06123 Perugia, Italy
- IOM-CNR c/o Dipartimento di Fisica, Universitá di Perugia, Via Pascoli, I-06123, Perugia, Italy
| | - Marco Paolantoni
- Dipartimento di Chimica, Universitá di Perugia, via Elce di Sotto, I-06123 Perugia, Italy
| | - Paola Sassi
- Dipartimento di Chimica, Universitá di Perugia, via Elce di Sotto, I-06123 Perugia, Italy
| | - Assunta Morresi
- Dipartimento di Chimica, Universitá di Perugia, via Elce di Sotto, I-06123 Perugia, Italy
| | - Daniele Fioretto
- Dipartimento di Fisica, Universitá degli Studi di Perugia, Via Pascoli, I-06123 Perugia, Italy
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29
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Lupi L, Comez L, Masciovecchio C, Morresi A, Paolantoni M, Sassi P, Scarponi F, Fioretto D. Hydrophobic hydration of tert-butyl alcohol studied by Brillouin light and inelastic ultraviolet scattering. J Chem Phys 2011; 134:055104. [DOI: 10.1063/1.3529014] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Vibrational Properties of Cyclodextrin–Water Solutions Investigated by Low-Frequency Raman Scattering: Temperature and Concentration Effects. FOOD BIOPHYS 2010. [DOI: 10.1007/s11483-010-9196-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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