1
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Airi A, Signorile M, Bonino F, Quagliotto P, Bordiga S, Martens JA, Crocellà V. Insights on a Hierarchical MFI Zeolite: A Combined Spectroscopic and Catalytic Approach for Exploring the Multilevel Porous System Down to the Active Sites. ACS Appl Mater Interfaces 2021; 13:49114-49127. [PMID: 34542275 PMCID: PMC8532120 DOI: 10.1021/acsami.1c11614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Indexed: 06/13/2023]
Abstract
The hierarchization of zeolites to overcome the major drawbacks related to molecular diffusion limitation in micropores is a popular concept in heterogeneous catalysis. Despite the constant increase of new synthesis strategies to produce such hierarchical systems, the deep knowledge of their structural arrangement and how the zeolitic lattice is organized in a multilevel porous system is often missing. This information is essential to design a structure, tuning the porosity and the distribution of easily accessible active sites, and successively controlling the catalytic properties. In the present work, the synthesis of one of the most sophisticated forms of the hierarchical ZSM-5 zeolite has been reproduced, obtaining two multilevel porous materials with different crystallinity degrees, with the final aim of investigating and clarifying the finest features of their active sites. For this purpose, an extended characterization step by means of a unique multitechnique approach has been performed, thus revealing the active site nature, abundance, and distribution. IR spectroscopy with different molecular probes and a targeted catalytic test based on the hydroconversion reaction of n-decane were the toolbox for disclosing how the MFI lattice takes part in the hierarchical structure and how it, working in synergy with the mesoporous system, confers to this material a totally new shape-size selectivity. Merging the information obtained for the synthesized hierarchical zeolite with the characterization results of two reference materials (a mesoporous aluminum-containing MCM-41 and a microporous commercial ZSM-5), it was possible to define an internal and external map of the pore network of this complex and unique molecular sieve, where strong Brønsted acidic sites are located at the mouth of the MFI micropores and, at the same time, exposed at the surface of the mesoporous channels. Hence, the possibility of easily releasing bulky products is ensured and the application possibilities of the MFI lattice are expanded beyond cracking reactions.
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Affiliation(s)
- Alessia Airi
- Department
of Chemistry, NIS and INSTM Reference Centre, University of Turin, Via G.Quarello 15/A 10135 and Via P.Giuria 7, 10125 Turin, Italy
| | - Matteo Signorile
- Department
of Chemistry, NIS and INSTM Reference Centre, University of Turin, Via G.Quarello 15/A 10135 and Via P.Giuria 7, 10125 Turin, Italy
| | - Francesca Bonino
- Department
of Chemistry, NIS and INSTM Reference Centre, University of Turin, Via G.Quarello 15/A 10135 and Via P.Giuria 7, 10125 Turin, Italy
| | - Pierluigi Quagliotto
- Department
of Chemistry, NIS and INSTM Reference Centre, University of Turin, Via G.Quarello 15/A 10135 and Via P.Giuria 7, 10125 Turin, Italy
| | - Silvia Bordiga
- Department
of Chemistry, NIS and INSTM Reference Centre, University of Turin, Via G.Quarello 15/A 10135 and Via P.Giuria 7, 10125 Turin, Italy
| | - Johan A. Martens
- Centre
for Surface Chemistry and Catalysis, KU
Leuven, Celestijnenlaan
200F, Box 2461, B-3001 Leuven, Belgium
| | - Valentina Crocellà
- Department
of Chemistry, NIS and INSTM Reference Centre, University of Turin, Via G.Quarello 15/A 10135 and Via P.Giuria 7, 10125 Turin, Italy
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2
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Giordano M, Renno G, Quagliotto P, Barolo C, Cravotto G, Fin A, Viscardi G. Solid-Phase Synthesis of Asymmetric Cyanine Dyes. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210628104642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cyanine Dyes (CD) are a functional class of organic molecules used in several applications
ranging from photography to bioimaging. Most well-known features of CDs reside
on high molar extinction coefficients up to 105 L mol-1cm-1 and on the absorption spectra,
ranging from 500 to 1000 nm, which can be fine-tuned both by extending the length of the
central methylene bridge or by modulating the terminal heterocycles. In the last decades, new
synthetic methodologies, namely microwave-assisted and the solid-phase procedure, have
been developed to overcome the limitation of the classical synthetic protocols. While the microwave
approach usually reduces the exposure time of the reagents and products to thermal
degradation, the solid-phase methodology allows easier synthetic protocols, which are translated
into higher yields and simpler products purification. In the present review, a comprehensive
analysis of the solid-phase methods for the synthesis of asymmetrical CDs is discussed,
with a critical evaluation of the difference among the currently available solid-state approaches.
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Affiliation(s)
- Marco Giordano
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7 - 10125, Torino, Italy
| | - Giacomo Renno
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7 - 10125, Torino, Italy
| | - Pierluigi Quagliotto
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7 - 10125, Torino, Italy
| | - Claudia Barolo
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7 - 10125, Torino, Italy
| | - Giancarlo Cravotto
- 2Department of Drug Science and Technology, University of Torino, Via Pietro Giuria 9 - 10125, Torino, Italy
| | - Andrea Fin
- 2Department of Drug Science and Technology, University of Torino, Via Pietro Giuria 9 - 10125, Torino, Italy
| | - Guido Viscardi
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7 - 10125, Torino, Italy
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3
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Desoky MMH, Bonomo M, Barbero N, Viscardi G, Barolo C, Quagliotto P. Polymeric Dopant-Free Hole Transporting Materials for Perovskite Solar Cells: Structures and Concepts towards Better Performances. Polymers (Basel) 2021; 13:1652. [PMID: 34069612 PMCID: PMC8160825 DOI: 10.3390/polym13101652] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/07/2021] [Accepted: 05/12/2021] [Indexed: 11/16/2022] Open
Abstract
Perovskite solar cells are a hot topic of photovoltaic research, reaching, in few years, an impressive efficiency (25.5%), but their long-term stability still needs to be addressed for industrial production. One of the most sizeable reasons for instability is the doping of the Hole Transporting Material (HTM), being the salt commonly employed as a vector bringing moisture in contact with perovskite film and destroying it. With this respect, the research focused on new and stable "dopant-free" HTMs, which are inherently conductive, being able to effectively work without any addition of dopants. Notwithstanding, they show impressive efficiency and stability results. The dopant-free polymers, often made of alternated donor and acceptor cores, have properties, namely the filming ability, the molecular weight tunability, the stacking and packing peculiarities, and high hole mobility in absence of any dopant, that make them very attractive and a real innovation in the field. In this review, we tried our best to collect all the dopant-free polymeric HTMs known so far in the perovskite solar cells field, providing a brief historical introduction, followed by the classification and analysis of the polymeric structures, based on their building blocks, trying to find structure-activity relationships whenever possible. The research is still increasing and a very simple polymer (PFDT-2F-COOH) approaches PCE = 22% while some more complex ones overcome 22%, up to 22.41% (PPY2).
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Affiliation(s)
- Mohamed M. H. Desoky
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Matteo Bonomo
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Nadia Barbero
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Guido Viscardi
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Claudia Barolo
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
- ICxT Interdepartmental Centre, Università degli Studi di Torino, Via Lungo Dora Siena 100, 10153 Torino, Italy
| | - Pierluigi Quagliotto
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
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4
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Montoneri E, Fabbri G, Quagliotto P, Baglieri A, Padoan E, Boero V, Negre M. High Molecular Weight Biosurfactants from Mild Chemical Reactions of Fermented Municipal Biowastes. ChemistrySelect 2020. [DOI: 10.1002/slct.201904338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Enzo> Montoneri
- Università di Torino Dipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | - Gloria Fabbri
- Università di Torino Dipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | | | - Andrea Baglieri
- Università di Catania Dipartimento di Scienze delle Produzioni Agrarie e Alimentari Via S. Sofia 98 95123 Catania Italy
| | - Elio Padoan
- Università di Torino Dipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | - Valter Boero
- Università di Torino Dipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | - Michèle Negre
- Università di Torino Dipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
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5
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Rotundo L, Azzi E, Deagostino A, Garino C, Nencini L, Priola E, Quagliotto P, Rocca R, Gobetto R, Nervi C. Electronic Effects of Substituents on fac-M(bpy-R)(CO) 3 (M = Mn, Re) Complexes for Homogeneous CO 2 Electroreduction. Front Chem 2019; 7:417. [PMID: 31231639 PMCID: PMC6561311 DOI: 10.3389/fchem.2019.00417] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/21/2019] [Indexed: 12/21/2022] Open
Abstract
Synthesis and characterization of 14 new 2,2'-bipyridine metal complexes fac-M(bpy-R)(CO)3X (where M = Mn, X = Br or M = Re, X = Cl and R = -CF3, -CN, -Ph, -PhOH, -NMe2) are reported. The complexes have been characterized by NMR, IR spectroscopy and elemental analysis. Single crystal X-Ray diffraction structures have been solved for Re(dpbpy)(CO)3Cl (dpbpy = 4,6-diphenyl-2,2'-bipyridine) and Re(hpbpy)(CO)3Cl (hpbpy = 4-(2-hydroxy-phenyl)-6-phenyl-2,2'-bipyridine). Electrochemical behaviors of the complexes in acetonitrile under Ar and their catalytic performances for CO2 reduction with added water and MeOH have been investigated by cyclic voltammetry and controlled potential electrolysis. The role of the substituents on the electrochemical properties and the related over potentials required for CO2 transformation have been analyzed. The complexes carrying only electron withdrawing groups like -CF3, -CN totally lose their catalytic activities toward CO2 reduction, whereas the symmetric -NMe2 substituted and push-pull systems (containing both -NMe2 and -CF3) still display electrocatalytic current enhancement under CO2 atmosphere. The complexes carrying a phenyl or a phenol group in position 4 show catalytic behaviors similar to those of simple M-bpy systems. The only detected reduction product by GC analysis is CO: for example, fac-Re (bpy-4,4'-NMe2)(CO)3Cl gives CO with high faradic efficiency and a TON of 18 and 31, in absence of external proton source and with 5% MeOH, respectively. DFT calculations were carried out to highlight the electronic properties of the complexes; results are in agreement with experimental electrochemical data.
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Affiliation(s)
- Laura Rotundo
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy.,NIS Interdepartmental Centre, Università degli Studi di Torino, Turin, Italy.,Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC), Bari, Italy
| | - Emanuele Azzi
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy
| | | | - Claudio Garino
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy.,NIS Interdepartmental Centre, Università degli Studi di Torino, Turin, Italy.,Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC), Bari, Italy
| | - Luca Nencini
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy
| | - Emanuele Priola
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy.,NIS Interdepartmental Centre, Università degli Studi di Torino, Turin, Italy
| | - Pierluigi Quagliotto
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy.,NIS Interdepartmental Centre, Università degli Studi di Torino, Turin, Italy
| | - Riccardo Rocca
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy.,NIS Interdepartmental Centre, Università degli Studi di Torino, Turin, Italy.,Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC), Bari, Italy
| | - Roberto Gobetto
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy.,NIS Interdepartmental Centre, Università degli Studi di Torino, Turin, Italy.,Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC), Bari, Italy
| | - Carlo Nervi
- Department of Chemistry, Università degli Studi di Torino, Turin, Italy.,NIS Interdepartmental Centre, Università degli Studi di Torino, Turin, Italy.,Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC), Bari, Italy
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6
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Montoneri E, Fabbri G, Grillo G, Tabasso S, Cravotto G, Quagliotto P, Baglieri A, Boero V, Negre M. Mild Hydrogenation of Urban Biowaste Hydrolysates to Biopolymers with Improved Properties. ChemistrySelect 2019. [DOI: 10.1002/slct.201900805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Enzo Montoneri
- Università di TorinoDipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | - Gloria Fabbri
- Università di TorinoDipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | - Giorgio Grillo
- Università di TorinoDipartimento di Scienza e Tecnologia del Farmaco Via P. Giuria 9 10125 Torino Italy
| | - Silvia Tabasso
- Università di TorinoDipartimento di Scienza e Tecnologia del Farmaco Via P. Giuria 9 10125 Torino Italy
| | - Giancarlo Cravotto
- Università di TorinoDipartimento di Scienza e Tecnologia del Farmaco Via P. Giuria 9 10125 Torino Italy
| | | | - Andrea Baglieri
- Università di CataniaDipartimento di Scienze delle Produzioni Agrarie e Alimentari Via S. Sofia 98 95123 Catania Italy
| | - Valter Boero
- Università di TorinoDipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | - Michèle Negre
- Università di TorinoDipartimento di Scienze Agrarie, Forestali e Alimentari Largo P. Braccini 2 10095 Grugliasco (TO) Italy
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7
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Affiliation(s)
- Pierluigi Quagliotto
- Dipartimento di Chimica and NIS - Interdepartmental Centre for Nanostructured Interfaces and Surfaces, Universita di Torino, Torino, Italy
| | - Andrea Fin
- Department of Chemistry and Biochemistry, University of California, La Jolla, San Diego, CA 92093-0358, Italy
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8
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Quagliotto P, Prosperini S, Viscardi G. Improved Synthesis of a Terthiophene-Based Monomeric Ligand That Forms a Highly Active Polymer for the Carbon Dioxide Reduction. LETT ORG CHEM 2017. [DOI: 10.2174/1570178614666170503122330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Pierluigi Quagliotto
- Dipartimento di Chimica, Università di Torino, via Pietro Giuria 7, 10125 Torino, Italy
| | | | - Guido Viscardi
- Dipartimento di Chimica, Università di Torino, Torino, Italy
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9
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Fisicaro E, Compari C, Bacciottini F, Contardi L, Pongiluppi E, Barbero N, Viscardi G, Quagliotto P, Donofrio G, Krafft MP. Nonviral gene-delivery by highly fluorinated gemini bispyridinium surfactant-based DNA nanoparticles. J Colloid Interface Sci 2016; 487:182-191. [PMID: 27769002 DOI: 10.1016/j.jcis.2016.10.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 11/19/2022]
Abstract
Biological and thermodynamic properties of a new homologous series of highly fluorinated bispyridinium cationic gemini surfactants, differing in the length of the spacer bridging the pyridinium polar heads in 1,1' position, are reported for the first time. Interestingly, gene delivery ability is closely associated with the spacer length due to a structural change of the molecule in solution. This conformation change is allowed when the spacer reaches the right length, and it is suggested by the trends of the apparent and partial molar enthalpies vs molality. To assess the compounds' biological activity, they were tested with an agarose gel electrophoresis mobility shift assay (EMSA), MTT proliferation assay and Transient Transfection assays on a human rhabdomyosarcoma cell line. Data from atomic force microscopy (AFM) allow for morphological characterization of DNA nanoparticles. Dilution enthalpies, measured at 298K, enabled the determination of apparent and partial molar enthalpies vs molality. All tested compounds (except that with the longest spacer), at different levels, can deliver the plasmid when co-formulated with 1,2-dioleyl-sn-glycero-3-phosphoethanolamine (DOPE). The compound with a spacer formed by eight carbon atoms gives rise to a gene delivery ability that is comparable to that of the commercial reagent. The compound with the longest spacer compacts DNA in loosely condensed structures by forming bows, which are not suitable for transfection. Regarding the compounds' hydrogenated counterparts, the tight relationship between the solution thermodynamics data and their biological performance is amazing, making "old" methods the foundation to deeply understanding "new" applications.
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Affiliation(s)
- Emilia Fisicaro
- University of Parma, Department of Pharmacy, Parco Area delle Scienze, 27/A, 43124 Parma, Italy.
| | - Carlotta Compari
- University of Parma, Department of Pharmacy, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
| | - Franco Bacciottini
- University of Parma, Department of Pharmacy, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
| | - Laura Contardi
- University of Parma, Department of Pharmacy, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
| | - Erika Pongiluppi
- University of Parma, Department of Pharmacy, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
| | - Nadia Barbero
- University of Torino, Department of Chemistry, Interdepartmental "Nanostructured Surfaces and Interfaces" NIS Centre, Via P. Giuria, 7, 10125 Torino, Italy
| | - Guido Viscardi
- University of Torino, Department of Chemistry, Interdepartmental "Nanostructured Surfaces and Interfaces" NIS Centre, Via P. Giuria, 7, 10125 Torino, Italy
| | - Pierluigi Quagliotto
- University of Torino, Department of Chemistry, Interdepartmental "Nanostructured Surfaces and Interfaces" NIS Centre, Via P. Giuria, 7, 10125 Torino, Italy
| | - Gaetano Donofrio
- University of Parma, Department of Veterinary Sciences, Via del Taglio, 10, 43126 Parma, Italy
| | - Marie Pierre Krafft
- Institut Charles Sadron (CNRS), University of Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex, France
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10
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Fisicaro E, Contardi L, Compari C, Bacciottini F, Pongiluppi E, Viscardi G, Barbero N, Quagliotto P, Różycka-Roszak B. Solution Thermodynamics of highly fluorinated gemini bispyridinium surfactants for biomedical applications. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.07.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Montoneri PE, Rosso D, Bucci G, Berto S, Baglieri A, Mendichi R, Quagliotto P, Francavilla M, Mainero D, Negre M. Ozonization to Upgrade Waste-Derived Soluble Lignin-Like Substances to Higher Value Products. ChemistrySelect 2016. [DOI: 10.1002/slct.201600339] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Daniele Rosso
- ACEA Pinerolese Industriale SpA; Via Vigone 42 10064 Pinerolo (TO) Italy
| | - Giuseppe Bucci
- Dipartimento di Scienze Agrarie; Forestali e Alimentari; Università di Torino; Largo P. Braccini 2 10095 Grugliasco (TO) Italy
| | - Silvia Berto
- Dipartimento di Chimica; Università di Torino; Via Giuria 7 10125 Torino Italy
| | - Andrea Baglieri
- Dipartimento di Scienze delle Produzioni Agrarie e Alimentari; Università di Catania; Via S. Sofia 98 95123 Catania Italy
| | - Raniero Mendichi
- Istituto per lo Studio delle Macromolecole; ISMAC-CNR; Via E. Bassini 15 20133 Milano Italy
| | | | - Matteo Francavilla
- STAR Integrated Research Unit; Università di Foggia; Via Gramsci, 89-91 71121 Foggia Italy
| | - Davide Mainero
- ACEA Pinerolese Industriale SpA; Via Vigone 42 10064 Pinerolo (TO) Italy
| | - Michèle Negre
- Dipartimento di Scienze Agrarie; Forestali e Alimentari; Università di Torino; Largo P. Braccini 2 10095 Grugliasco (TO) Italy
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12
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Saccone D, Galliano S, Barbero N, Quagliotto P, Viscardi G, Barolo C. Polymethine Dyes in Hybrid Photovoltaics: Structure-Properties Relationships. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501598] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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13
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Sun C, Prosperini S, Quagliotto P, Viscardi G, Yoon SS, Gobetto R, Nervi C. Electrocatalytic reduction of CO2 by thiophene-substituted rhenium(i) complexes and by their polymerized films. Dalton Trans 2016; 45:14678-88. [PMID: 26800520 DOI: 10.1039/c5dt04491j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Three novel thiophene substituted bipyridine ligands and their corresponding rhenium complexes were synthesized and tested for the electrocatalytic reduction of CO2. Two complexes underwent oxidative electropolymerization on a glassy carbon electrode (GCE) surface. The conductive polymers chemically deposited on the GCE allow electron transport from the surface to the polymer-attached rhenium catalytic center in contact with the solution. The chemically modified electrodes show significant catalytic activities for CO2 reduction, and moderate relative higher stabilities when compared with the homogeneous solution counterparts.
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Affiliation(s)
- Cunfa Sun
- Department of Chemistry, NIS and CIRCC (Bari), University of Torino via P. Giuria 7, 10125 Torino, Italy.
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14
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Barbero N, Magistris C, Park J, Saccone D, Quagliotto P, Buscaino R, Medana C, Barolo C, Viscardi G. Microwave-Assisted Synthesis of Near-Infrared Fluorescent Indole-Based Squaraines. Org Lett 2015; 17:3306-9. [DOI: 10.1021/acs.orglett.5b01453] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nadia Barbero
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Claudio Magistris
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Jinhyung Park
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Davide Saccone
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Pierluigi Quagliotto
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Roberto Buscaino
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Claudio Medana
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Claudia Barolo
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
| | - Guido Viscardi
- Department of Chemistry and NIS Interdepartmental
Centre and ‡Dipartimento di
Biotecnologie Molecolari e Scienze per la Salute, University of Torino, Via Giuria 7, I-10125 Torino, Italy
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15
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Barbero N, Magistris C, Quagliotto P, Bonandini L, Barolo C, Buscaino R, Compari C, Contardi L, Fisicaro E, Viscardi G. Synthesis, Physicochemical Characterization, and Interaction with DNA of Long-Alkyl-Chain Gemini Pyridinium Surfactants. Chempluschem 2015; 80:952-962. [PMID: 31973260 DOI: 10.1002/cplu.201500007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Indexed: 11/10/2022]
Abstract
Pyridinium gemini surfactants with hexadecyl chains linked to nitrogen atoms and a tuned aliphatic spacer that bridges the two pyridinium polar heads in 2,2'-positions have been synthesized and characterized. A multitechnique approach allowed us to study the aggregation behavior, using conductivity, surface tension, and fluorescence. Graphs of the specific conductivity (κ) versus the surfactant molar concentration (C), and graphs of the molar conductivity (Λ) versus C0.5 suggest pre-aggregation phenomena of these amphiphiles at very low concentration. The trends of Amin as a function of the spacer length confirm the hypothesis of a conformational change of the molecule with four methylene groups as spacer owing to stacking interactions between the two pyridinium rings mediated by the counterion. Moreover, the trends of Amin and counterion binding (β) suggest that the spacer must be longer than eight carbon atoms to fold efficiently toward the micellar core. The opportunity to tune the surfactant structure and aggregation properties make those surfactants-particularly the long-chain ones for which the DNA complexing ability was shown by means of atomic force microscopy (AFM) imaging-desirable candidates for gene-delivery experiments.
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Affiliation(s)
- Nadia Barbero
- Dipartimento di Chimica, Interdepartmental "Nanostructured Surfaces and Interfaces", NIS Centre-Università di Torino, Via Pietro Giuria 7, 10125 Torino (Italy)
| | - Claudio Magistris
- Dipartimento di Chimica, Interdepartmental "Nanostructured Surfaces and Interfaces", NIS Centre-Università di Torino, Via Pietro Giuria 7, 10125 Torino (Italy)
| | - Pierluigi Quagliotto
- Dipartimento di Chimica, Interdepartmental "Nanostructured Surfaces and Interfaces", NIS Centre-Università di Torino, Via Pietro Giuria 7, 10125 Torino (Italy)
| | - Luca Bonandini
- Dipartimento di Chimica, Interdepartmental "Nanostructured Surfaces and Interfaces", NIS Centre-Università di Torino, Via Pietro Giuria 7, 10125 Torino (Italy)
| | - Claudia Barolo
- Dipartimento di Chimica, Interdepartmental "Nanostructured Surfaces and Interfaces", NIS Centre-Università di Torino, Via Pietro Giuria 7, 10125 Torino (Italy)
| | - Roberto Buscaino
- Dipartimento di Chimica, Interdepartmental "Nanostructured Surfaces and Interfaces", NIS Centre-Università di Torino, Via Pietro Giuria 7, 10125 Torino (Italy)
| | - Carlotta Compari
- Dipartimento di Farmacia-Università di Parma, Parco Area delle Scienze 27A, 43124 Parma (Italy)
| | - Laura Contardi
- Dipartimento di Farmacia-Università di Parma, Parco Area delle Scienze 27A, 43124 Parma (Italy)
| | - Emilia Fisicaro
- Dipartimento di Farmacia-Università di Parma, Parco Area delle Scienze 27A, 43124 Parma (Italy)
| | - Guido Viscardi
- Dipartimento di Chimica, Interdepartmental "Nanostructured Surfaces and Interfaces", NIS Centre-Università di Torino, Via Pietro Giuria 7, 10125 Torino (Italy)
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Fisicaro E, Compari C, Bacciottini F, Contardi L, Barbero N, Viscardi G, Quagliotto P, Donofrio G, Różycka-Roszak B, Misiak P, Woźniak E, Sansone F. Nonviral Gene Delivery: Gemini Bispyridinium Surfactant-Based DNA Nanoparticles. J Phys Chem B 2014; 118:13183-91. [DOI: 10.1021/jp507999g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Emilia Fisicaro
- Department
of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Carlotta Compari
- Department
of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Franco Bacciottini
- Department
of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Laura Contardi
- Department
of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Nadia Barbero
- Department
of Chemistry, Interdepartmental “Nanostructured Surfaces and
Interfaces” NIS Centre, University of Torino, Via P. Giuria
7, 10125 Torino, Italy
| | - Guido Viscardi
- Department
of Chemistry, Interdepartmental “Nanostructured Surfaces and
Interfaces” NIS Centre, University of Torino, Via P. Giuria
7, 10125 Torino, Italy
| | - Pierluigi Quagliotto
- Department
of Chemistry, Interdepartmental “Nanostructured Surfaces and
Interfaces” NIS Centre, University of Torino, Via P. Giuria
7, 10125 Torino, Italy
| | - Gaetano Donofrio
- Department
of Veterinary Sciences, University of Parma, Via del Taglio 10, 43126 Parma, Italy
| | | | | | | | - Francesco Sansone
- Department
of Chemistry, University of Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
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17
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Kumar B, Tikariha D, Satnami ML, Barbero N, Quagliotto P, Ghosh KK. Catalytic hydrolysis of phosphodiesters by nucleophilic ions in gemini micellar media. J PHYS ORG CHEM 2014. [DOI: 10.1002/poc.3308] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Birendra Kumar
- Department of Chemistry; Govt. Rajmata Vijayaraje Sindhiya Girls College Kawardha; Distt-Kabirdham 491995 Chhattisgarh India
| | - Deepti Tikariha
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh India
| | - M. L. Satnami
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh India
| | - Nadia Barbero
- Department of Chemistry and Interdepartmental NIS Centre; Università di Torino; Via Pietro Giuria 7 10125 Turin Italy
| | - Pierluigi Quagliotto
- Department of Chemistry and Interdepartmental NIS Centre; Università di Torino; Via Pietro Giuria 7 10125 Turin Italy
| | - Kallol K. Ghosh
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh India
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Tikariha D, Kumar B, Ghosh S, Tiwari AK, Saha SK, Barbero N, Quagliotto P, Ghosh KK. Interaction Between Cationic Gemini and Monomeric Surfactants: Micellar and Surface Properties. J Nanofluids 2013. [DOI: 10.1166/jon.2013.1066] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Kumar B, Tikariha D, Ghosh KK, Barbero N, Quagliotto P. Kinetic study on effect of novel cationic dimeric surfactants for the cleavage of carboxylate ester. J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3141] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Birendra Kumar
- Department of Chemistry; Govt. Rajmata Vijyaraje Sindhiya Girls College; Kawardha, Distt.-Kabirdham (C.G.) 491995 India
| | - Deepti Tikariha
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur (C.G.) 492010 India
| | - Kallol K. Ghosh
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur (C.G.) 492010 India
| | - Nadia Barbero
- University of Torino; Department of Chemistry, NIS Centre of Excellence; Via P. Giuria 7 10125 Torino Italy
| | - Pierluigi Quagliotto
- University of Torino; Department of Chemistry, NIS Centre of Excellence; Via P. Giuria 7 10125 Torino Italy
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20
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Abstract
Abstract
The micellization behavior of three cationic gemini surfactants, C16H33N+(CH3)2(CH2)SN+(CH3)2C16H33, 2Br− (s = 4, 6, 10) have been studied in the presence of 1% (w/v) and 5% (w/v) polyethylene glycol-600 (PEG-600) by conductivity measurements at 300–320 K. From the conductivity data the critical micelle concentration, the degree of counterion ionization (α) and the thermodynamics of micellization ΔGo
m, ΔHo
m, ΔSo
m, of the gemini surfactants have been determined. The micellar parameters show a significant dependence on the spacer length and as well as amount of polymer.
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Affiliation(s)
- D. Tikariha
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (C.G.), India
| | - K. K. Ghosh
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (C.G.), India
| | - P. Quagliotto
- Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS, Università degli Studi di Torino, Corso Massimo D'Azeglio 48, 10125, Torino, Italy
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Kumar B, Tikariha D, Ghosh KK, Quagliotto P. Effect of short chain length alcohols on micellization behavior of cationic gemini and monomeric surfactants. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2012.05.013] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Park J, Barolo C, Sauvage F, Barbero N, Benzi C, Quagliotto P, Coluccia S, Di Censo D, Grätzel M, Nazeeruddin MK, Viscardi G. Symmetric vs. asymmetric squaraines as photosensitisers in mesoscopic injection solar cells: a structure–property relationship study. Chem Commun (Camb) 2012; 48:2782-4. [DOI: 10.1039/c2cc17187b] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Etgar L, Park J, Barolo C, Lesnyak V, Panda SK, Quagliotto P, Hickey SG, Nazeeruddin MK, Eychmüller A, Viscardi G, Grätzel M. Enhancing the efficiency of a dye sensitized solar cell due to the energy transfer between CdSe quantum dots and a designed squaraine dye. RSC Adv 2012. [DOI: 10.1039/c2ra20192e] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Tikariha D, Kumar B, Singh N, Ghosh KK, Quagliotto P. Micellization Behavior of Cationic Gemini Surfactants in Aqueous-Ethylene Glycol Solution. J SURFACTANTS DETERG 2011. [DOI: 10.1007/s11743-011-1280-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tikariha D, Ghosh KK, Barbero N, Quagliotto P, Ghosh S. Micellization properties of mixed cationic gemini and cationic monomeric surfactants in aqueous-ethylene glycol mixture. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.03.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Quagliotto P, Barolo C, Barbero N, Barni E, Compari C, Fisicaro E, Viscardi G. Synthesis and Characterization of Highly Fluorinated Gemini Pyridinium Surfactants. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900063] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Fisicaro E, Compari C, Biemmi M, Duce E, Peroni M, Barbero N, Viscardi G, Quagliotto P. Unusual Behavior of the Aqueous Solutions of Gemini Bispyridinium Surfactants: Apparent and Partial Molar Enthalpies of the Dimethanesulfonates. J Phys Chem B 2008; 112:12312-7. [DOI: 10.1021/jp804271z] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emilia Fisicaro
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
| | - Carlotta Compari
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
| | - Mariano Biemmi
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
| | - Elenia Duce
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
| | - Monica Peroni
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
| | - Nadia Barbero
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
| | - Guido Viscardi
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
| | - Pierluigi Quagliotto
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A, 43100 Parma, Italy and Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS—Superfici ed Interfacce Nanostrutturate, Università di Torino, Corso M. D’Azeglio, 48, 10125 Torino, Italy
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28
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Fisicaro E, Compari C, Biemmi M, Duce E, Peroni M, Donofrio G, Sansone F, Różycka-Roszak B, Pruchnik H, Barbero N, Viscardi G, Quagliotto P. Thermodynamics and Biological Properties of the Aqueous Solutions of New Glucocationic Surfactants. J Phys Chem B 2008; 112:9360-70. [DOI: 10.1021/jp800470a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emilia Fisicaro
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Carlotta Compari
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Mariano Biemmi
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Elenia Duce
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Monica Peroni
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Gaetano Donofrio
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Francesco Sansone
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Bożenna Różycka-Roszak
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Hanna Pruchnik
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Nadia Barbero
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Guido Viscardi
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
| | - Pierluigi Quagliotto
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Viale G.P. Usberti, 27/A - 43100 Parma, Italy, Dipartimento di Salute Animale, sezione di Malattie Infettive degli Animali, Università di Parma, Via del Taglio, 8 - 43100 Parma, Italy, Dipartimento di Chimica Organica e Industriale, Università di Parma, Viale G.P. Usberti, 17/A - 43100 Parma, Italy, Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50 - 375
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Montoneri E, Savarino P, Quagliotto P, Adani F, Ricca G. Organosulphur Phosphorus Acid Compounds. Part 7. Preparation and Analytical Identification of Difluorobenzylphosphono-Sulfonic Acids. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426509808545455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- E. Montoneri
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - P. Savarino
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - P. Quagliotto
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - F. Adani
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - G. Ricca
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
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Ghosh KK, Kolay S, Bal S, Satnami ML, Quagliotto P, Dafonte PR. Effect of cationic gemini surfactants on the hydrolysis of carboxylate and phosphate esters using hydroxamate ions. Colloid Polym Sci 2007. [DOI: 10.1007/s00396-007-1769-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Barolo C, Nazeeruddin MK, Fantacci S, Di Censo D, Comte P, Liska P, Viscardi G, Quagliotto P, De Angelis F, Ito S, Grätzel M. Synthesis, Characterization, and DFT-TDDFT Computational Study of a Ruthenium Complex Containing a Functionalized Tetradentate Ligand. Inorg Chem 2006; 45:4642-53. [PMID: 16749827 DOI: 10.1021/ic051970w] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A ruthenium complex trans-[Ru(L)(NCS)2], L = 4,4' ''-di-tert-butyl-4',4' '-bis(carboxylic acid)-2,2':6',2' ':6' ',2' ''-quaterpyridine (N886), was synthesized and characterized by spectroscopic and electrochemical methods. The absorption spectrum of the N886 complex shows metal-to-ligand charge-transfer transitions in the entire visible region and quasi-reversible oxidation and reduction potentials at E(1/2) = +0.38 and -1.92 V vs ferrocene, respectively. The electronic spectra of the N886 complex were calculated by density functional theory (DFT)-time-dependent DFT, which qualitatively reproduces the experimental absorption spectra for both the protonated and deprotonated species. From the analysis of the computed optical transitions of N886, we assign its absorption bands as mixed Ru/SCN-to-quaterpyridine charge-transfer transitions, which extend from the near-IR to the UV regions. The panchromatic response of the N886 complex renders it as a suitable sensitizer for solar energy conversion applications based on titanium dioxide mesoporous electrodes. The preliminary results using the N886 complex as a sensitizer in a dye-sensitized solar cell, with an electrolyte containing 0.60 M butylmethylimidazolium iodide, 0.03 M I2, and 0.50 M tert-butylpyridine in a mixture of acetonitrile and valeronitrile (volume ratio 1:1), show 40% incident photon-to-current efficiencies, yielding under standard AM 1.5 sunlight a short-circuit photocurrent density of 11.8 +/- 0.2 mA/cm(2), an open-circuit voltage of 680 +/- 30 mV, and a fill factor of 0.73 +/- 0.03, corresponding to an overall conversion efficiency of 5.85%.
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Affiliation(s)
- C Barolo
- Dipartimento di Chimica Generale ed Organica Applicata, Universitá di Torino, Italy
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Quagliotto P, Montoneri E, Tambone F, Adani F, Gobetto R, Viscardi G. Chemicals from wastes: compost-derived humic acid-like matter as surfactant. Environ Sci Technol 2006; 40:1686-92. [PMID: 16568788 DOI: 10.1021/es051637r] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Compost humic acid-like (cHAL) polymeric matter (MW = 15610), isolated in 12% yield from food and green waste compost, exhibits very good surfactant properties in aqueous solution: i.e., critical micelle concentration (cmc) = 403 mg/L and surface tension at cmc = 36.1 mN/m. Values of cmc are confirmed also by conductivity and phenanthrene solubility measurements. These results, compared with those for other major commercial and research surfactants, propose cHAL as a competitive low-cost biosurfactant.
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Affiliation(s)
- Pierluigi Quagliotto
- Dipartimento di Chimica Generale ed Organica Applicata, Università di Torino, 10125 Torino, Italy
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Quagliotto P, Viscardi G, Barolo C, D'Angelo D, Barni E, Compari C, Duce E, Fisicaro E. Synthesis and Properties of New Glucocationic Surfactants: Model Structures for Marking Cationic Surfactants with Carbohydrates. J Org Chem 2005; 70:9857-66. [PMID: 16292816 DOI: 10.1021/jo051579s] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] In this work, we report the synthesis of a new series of glucocationic surfactants, a class of surfactants we introduced very recently. The preparation of the surfactants is based on the synthesis of the 2-bromoethyl-2,3,4,6-tetra-O-acetyl-beta-D-glucopyranoside, whose preparation was studied in order to improve yields and stereoselectivity of this key intermediate. These glucocationic amphiphiles were prepared and studied as a model of cationic surfactants marked with a carbohydrate moiety. The use of carbohydrates as markers on cationic lipids was recently introduced to induce recognition by specific receptors, present on the surface of cell membranes. The chemicophysical characterization of these model structures can give more insight on the aggregation behavior. Conductivity and surface tension measurements were performed in order to characterize the compounds from the amphiphilic point of view. The results showed a different effect of the glucosidic moiety on the cmc value with respect to the glucopyridinium cationic surfactants. The surfactants also showed the tendency to form premicellar aggregates in solution when the hydrophobicity is raised.
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Affiliation(s)
- Pierluigi Quagliotto
- Dipartimento di Chimica Generale ed Organica Applicata e Centro di Eccellenza NIS, Università di Torino, C.so Massimo d'Azeglio, 48, 10125 Torino, Italy.
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Fisicaro E, Compari C, Duce E, Contestabili C, Viscardi G, Quagliotto P. First Evaluation of the Thermodynamic Properties for Spheres to Elongated Micelles Transition of Some Propanediyl-α,ω-bis(dimethylalkylammonium bromide) Surfactants in Aqueous Solution. J Phys Chem B 2005; 109:1744-9. [PMID: 16851153 DOI: 10.1021/jp0458912] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The apparent and partial molar enthalpies, apparent molar volumes, and adiabatic compressibilities at 298 K of the aqueous solutions of the cationic gemini surfactants propanediyl-alpha,omega-bis(octyldimethylammonium bromide) (8-3-8) and propanediyl-alpha,omega-bis(dodecyldimethylammonium bromide) (12-3-12) have been measured as a function of concentration. The trends of the partial molar enthalpies versus concentration are the first well documented thermodynamic evidence of sphere to rod transition in the micellar phase, involving a detectable quantity of heat, and allow the determination of the change in enthalpy associated with this transition. The changes in enthalpies upon micellization and for the sphere to elongated micelles transition, DeltaH(s)(-->)(r), have been obtained from the experimental data by using a pseudo-phase transition approach: -1.5 kJ mol(-1) for 8-3-8 and -3.9 kJ mol(-1) for 12-3-12. No evidence of the above transition is found in the trends of volumetric properties versus m. The apparent adiabatic molar compressibilities for the compounds under investigation are also reported here for the first time: a negative group contribution for the methylene group is evaluated, when the surfactants are present in solution as a single molecule, reflecting its solvation structure. In the micellar phase, the -CH(2)- group contribution becomes positive. A value of 1.17 x 10(-3) cm(3) bar(-1) mol(-1) for the change in adiabatic molar compressibility upon micellization is obtained. The lower values of the methylene group contributions to the volumetric properties for the monomers support the hypothesis of partial association of the chains before the cmc.
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Affiliation(s)
- Emilia Fisicaro
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Parco Area delle Scienze, 27A, 43100 Parma, Italy.
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Quagliotto P, Viscardi G, Barolo C, Barni E, Bellinvia S, Fisicaro E, Compari C. Gemini pyridinium surfactants: synthesis and conductometric study of a novel class of amphiphiles1. J Org Chem 2004; 68:7651-60. [PMID: 14510538 DOI: 10.1021/jo034602n] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new series of pyridinium cationic gemini surfactants was prepared by quaternization of the 2,2'-(alpha,omega-alkanediyl)bispyridines with N-alkylating agents, whose reactivity is briefly discussed. Particularly useful was the use of long-chain alkyl triflates (trifluoromethanesulfonates) for both overcoming the sterical hindrance in the pyridines and obtaining higher synthetic yields. Well-known 4,4'-(alpha,omega-alkanediyl)bis(1-alkylpyridinium) structures showed narrow temperature ranges for practical applications, due to their high Krafft points, while the new 2,2'-(alpha,omega-alkanediyl)bis(1-alkylpyridinium) series, accounted for good surface active properties. Due to the Krafft points below 0 degrees C, they could be exploited as solutions in water at any temperature. The characterization of the behavior of the series was performed by conductivity measurements. Some of the proposed structures exhibited unusual surface active behavior, which was interpreted in terms of particular conformational arrangements.
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Affiliation(s)
- Pierluigi Quagliotto
- Dipartimento di Chimica Generale ed Organica Applicata, Università di Torino, C.so Massimo d'Azeglio 48, 10125 Torino, Italy.
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Turco Liveri ML, Lombardo R, Sbriziolo C, Viscardi G, Quagliotto P. Kinetic evidence for the solubilization of pyridine-2-azo-p-dimethylaniline in alkanediyl-α,ω-bis(dimethylcetylammonium nitrate) surfactants. Role of the spacer chain length. NEW J CHEM 2004. [DOI: 10.1039/b315422j] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Barni E, Barolo C, Quagliotto P, Savarino P, Viscardi G, Marabello D. 2-(4-methylpyridin-2-yl)-1H-benzimidazole derivatives. Part II,lH nmr characterization. J Heterocycl Chem 2003. [DOI: 10.1002/jhet.5570400414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gervasio G, Marabello D, Barolo C, Quagliotto P, Viscardi G. 2-(4-methylpyridin-2-yl)-1H-benzimidazole derivatives. Part I. X-Ray structural analysis. J Heterocycl Chem 2003. [DOI: 10.1002/jhet.5570400117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Fisicaro E, Compari C, Viscardi G, Quagliotto P. Thermodynamic properties of the aqueous solution of potassium salts of some 4-((alkylcarbonyl)amino)-2-hydroxybenzoic acids at 298 and 313 K. J Colloid Interface Sci 2002; 255:410-6. [PMID: 12505090 DOI: 10.1006/jcis.2002.8671] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To understand the aggregation behavior of surface-active ligands with a salycilic polar head, we undertook a systematic study of some classes of anionic surfactants where the presence and the position of the -OH and the carboxylic group differ. This paper reports the dilution heats at 298 and 313 K of aqueous solutions of potassium 4-((alkylcarbonyl)amino)-2-hydroxybenzoate (KPAS-C(n) where n stands for the number of carbon atoms in the chain) in KOH at 0.1 m, measured as a function of concentration. From the experimental data, apparent and partial molar enthalpies vs concentration were obtained. By using a pseudo-phase-transition approach, the enthalpy changes upon micelle formation (DeltaH(m)) and assuming that in the restricted range of temperature examined heat capacities are constant, the heat capacity changes have been obtained. Micelle formation enthalpies are seen to be additive with a group contribution for the methylene group of -1.5+/-0.1 kJ mol(-1) per group at 298 K and -2.3+/-0.1 kJ mol(-1) per group at 313 K, comparable with that obtained for similar anionic compounds in the same experimental conditions and for N-alkylnicotinamide chlorides (cationic surfactants). The -CH(2)- group contribution to the micelle formation heat capacities is -53+/-1 J K(-1) mol(-1).
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Affiliation(s)
- Emilia Fisicaro
- Dipartimento di Scienze Farmacologiche, Biologiche e Chimiche Applicate, Università di Parma, Parco Area delle Scienze 27A, 43100 Parma, Italy
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Ardizzone S, Bianchi CL, Quagliotto P, Viscardi G. Adsorption of cationic ?gemini? surfactants at the TiO2/solution interface. SURF INTERFACE ANAL 2002. [DOI: 10.1002/sia.1380] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Viscardi G, Quagliotto P, Barolo C, Savarino P, Barni E, Fisicaro E. Synthesis and surface and antimicrobial properties of novel cationic surfactants. J Org Chem 2000; 65:8197-203. [PMID: 11101373 DOI: 10.1021/jo0006425] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of surfactants with tuned polarity were prepared, including a new class of compounds: gluco-pyridinium surfactants. Pure anomers were obtained by chromatographic separation. The conductivity and surface tension of surfactant solutions in water were measured, and provided interesting information regarding their aggregation behavior. Peculiarities were observed in the premicellar range. Tensidic parameters correlated with antimicrobial activity. A few parameters, mainly the hydrophobicity of the headgroup, may play a role in finding more efficient antimicrobial structures.
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Affiliation(s)
- G Viscardi
- Dipartimento di Chimica Generale ed Organica Applicata, Università di Torino, C.so Massimo d'Azeglio 48, 10125 Torino, Italy
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Savarino P, Viscardi G, Quagliotto P, Perracino P, Barni E. Voltammetric behaviour of heterocyclic systems. Pyridyl-substituted benzimidazoles, benzoxazoles and benzothiazoles. J Heterocycl Chem 1997. [DOI: 10.1002/jhet.5570340517] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ardizzone S, Bianchi C, Drago P, Mozzanica D, Quagliotto P, Savarino P, Viscardi G. Adsorption of 1-alkyl-4-methylpyridinium salts at solid-liquid and water-air interfaces. Colloids Surf A Physicochem Eng Asp 1996. [DOI: 10.1016/0927-7757(96)03632-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Savarino P, Viscardi G, Quagliotto P, Montoneri E, Barni E. DEVELOPMENTS IN DYEING TECHNOLOGY BASED ON MICROEMULSION SYSTEMS. J DISPER SCI TECHNOL 1995. [DOI: 10.1080/01932699508943658] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Savarino P, Viscardi G, Quagliotto P, Barni E, Friberg SE. THE ROLE OF COSURFACTANT AND OIL IN THE DYEING OF CELLULOSE - ACETATE. J DISPER SCI TECHNOL 1993. [DOI: 10.1080/01932699308943385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Viscardi G, Savarino P, Barni E, Carpignano R, Montoneri E, Quagliotto P. Heterocyclic intermediates for the synthesis of disperse and cationic dyes. J Heterocycl Chem 1992. [DOI: 10.1002/jhet.5570290428] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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48
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Savarino P, Viscardi G, Barni E, Di Modica G, Montoneri E, Quagliotto P. Assembled systems [X-azolopyridine][quinoline]. Bases and salts. J Heterocycl Chem 1992. [DOI: 10.1002/jhet.5570290134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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