1
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Dong L, Wu J, Zhu X. Preparation of amino acid chiral ionic liquid and visual chiral recognition of glutamine and phenylalanine enantiomers. Chirality 2024; 36:e23665. [PMID: 38570326 DOI: 10.1002/chir.23665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 03/08/2024] [Accepted: 03/08/2024] [Indexed: 04/05/2024]
Abstract
In this paper, the amino acid chiral ionic liquid (AACIL) was prepared with L-phenylalanine and imidazole. It was characterized by CD, FT-IR, 1H NMR, and 13C NMR spectrum. The chiral recognition sensor was constructed with AACIL and Cu(II), which exhibited different chiral visual responses (solubility or color difference) to the enantiomers of glutamine (Gln) and phenylalanine (Phe). The effects of solvent, pH, time, temperature, metal ions, and other amino acids on visual chiral recognition were optimized. The minimum concentrations of Gln and Phe for visual chiral recognition were 0.20 mg/ml and 0.28 mg/ml, respectively. The mechanism of chiral recognition was investigated by FT-IR, TEM, SEM, TG, XPS, and CD. The location of the host-guest inclusion or molecular placement has been conformationally searched based on Gaussian 09 software.
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Affiliation(s)
- Luzheng Dong
- College of Chemistry and Chemical Engineering, Guangling College, Yangzhou University, Yangzhou, China
| | - Jun Wu
- College of Chemistry and Chemical Engineering, Guangling College, Yangzhou University, Yangzhou, China
| | - Xiashi Zhu
- College of Chemistry and Chemical Engineering, Guangling College, Yangzhou University, Yangzhou, China
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2
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Pu X, Cai W, Chen H, Yang F, Mu X. Optimizing the method for removing MSNs templates using an ionic liquid ([C 4mim]Cl). NANOTECHNOLOGY 2024; 35:125601. [PMID: 38100836 DOI: 10.1088/1361-6528/ad1645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/15/2023] [Indexed: 12/17/2023]
Abstract
The key step in preparing mesoporous silica is to remove the organic template agent, and the most common method used to achieve this goal is high-temperature calcination. However, this method has many disadvantages, one of which is that it reduces the silanol density on the surface of mesoporous silica, which affects its subsequent modification. Ionic liquids (ILs) are often used as extractants. In this work, the 1-butyl-3-methylimidazolium chloride ([C4mim]Cl) IL is considered, and the effects of its concentration, reaction temperature, and reaction time as well as HCl concentration on the extraction rate and silanol density were investigated using an IL extraction template agent (cetyl trimethyl ammonium bromide (CTAB)). The results show that an IL concentration of 10%, a reaction temperature of 120 °C, a reaction time of 12 h, and an HCl concentration of 1% are the best reaction parameters; with these parameters, the extraction rate and the silanol density were found to be 93.19% and 2.23%, respectively. The silanol density of mesoporous silica treated by calcination is only 0.81%. A higher silanol density provides more reaction sites, so that the modified mesoporous silica treated with the IL can be loaded with more Zn ions.
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Affiliation(s)
- Xia Pu
- School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Wanling Cai
- School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Huayao Chen
- School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Fujie Yang
- School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Xiaomei Mu
- School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
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3
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Qalyoubi L, Zuburtikudis I, Abu Khalifeh H, Nashef E. Adsorptive Membranes Incorporating Ionic Liquids (ILs), Deep Eutectic Solvents (DESs) or Graphene Oxide (GO) for Metal Salts Extraction from Aqueous Feed. MEMBRANES 2023; 13:874. [PMID: 37999360 PMCID: PMC10673284 DOI: 10.3390/membranes13110874] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 11/25/2023]
Abstract
Water scarcity is a significant concern, particularly in arid regions, due to the rapid growth in population, industrialization, and climate change. Seawater desalination has emerged as a conventional and reliable solution for obtaining potable water. However, conventional membrane-based seawater desalination has drawbacks, such as high energy consumption resulting from a high-pressure requirement, as well as operational challenges like membrane fouling and high costs. To overcome these limitations, it is crucial to enhance the performance of membranes by increasing their efficiency, selectivity, and reducing energy consumption and footprint. Adsorptive membranes, which integrate adsorption and membrane technologies, offer a promising approach to address the drawbacks of standalone membranes. By incorporating specific materials into the membrane matrix, composite membranes have demonstrated improved permeability, selectivity, and reduced pressure requirements, all while maintaining effective pollutant rejection. Researchers have explored different adsorbents, including emerging materials such as ionic liquids (ILs), deep eutectic solvents (DESs), and graphene oxide (GO), for embedding into membranes and utilizing them in various applications. This paper aims to discuss the existing challenges in the desalination process and focus on how these materials can help overcome these challenges. It will also provide a comprehensive review of studies that have reported the successful incorporation of ILs, DESs, and GO into membranes to fabricate adsorptive membranes for desalination. Additionally, the paper will highlight both the current and anticipated challenges in this field, as well as present prospects, and provide recommendations for further advancements.
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Affiliation(s)
- Liyan Qalyoubi
- Department of Chemical Engineering, Abu Dhabi University, Abu Dhabi P.O. Box 59911, United Arab Emirates; (L.Q.); (H.A.K.)
| | - Ioannis Zuburtikudis
- Department of Chemical Engineering, Abu Dhabi University, Abu Dhabi P.O. Box 59911, United Arab Emirates; (L.Q.); (H.A.K.)
| | - Hadil Abu Khalifeh
- Department of Chemical Engineering, Abu Dhabi University, Abu Dhabi P.O. Box 59911, United Arab Emirates; (L.Q.); (H.A.K.)
| | - Enas Nashef
- Department of Chemical Engineering, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates;
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4
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Conversion of cellulose into levulinic acid under the catalysis of Brønsted acidic ionic liquid and erbium chloride in water. Carbohydr Res 2022; 522:108675. [DOI: 10.1016/j.carres.2022.108675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 11/20/2022]
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5
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Abstract
Cellulose-based materials have attracted great attention due to the demand for eco-friendly materials and renewable energy alternatives. An increase in the use of these materials is expected in the coming years due to progressive decline in the supply of petrochemicals. Based on the limitations of cellulose in terms of dissolution/processing, and focused on green chemistry, new cellulose production techniques are emerging, such as dissolution and functionalization in ionic liquids which are known as green solvents. This review summarizes the recent ionic liquids used in processing cellulose, including pretreatment, hydrolysis, functionalization, and conversion into bio-based platform chemicals. The recent literatures investigating the progress that ILs have made in their transition from academia to commercial application of cellulosic biomass are also reviewed.
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Ma YL, Gao T, Sun Y, Zhu Y, Lin F, Zhong Y, Li Y, Ji W. Ni-based Multifunctional Catalysts derived from layered double hydroxides for Catalytic conversion of Cellulose to Polyols. NEW J CHEM 2022. [DOI: 10.1039/d2nj02104h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic conversion of biomass into high value-added products has attracted wide attention, especially the efficient and selective conversion of cellulose into valuable chemicals and fuels. In this paper, using...
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7
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High-Efficient Conversion of Cellulose to Levulinic Acid Catalyzed via Functional Brønsted–Lewis Acidic Ionic Liquids. Catal Letters 2021. [DOI: 10.1007/s10562-021-03701-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Chiappe C, Rodriguez-Douton MJ, Mozzati MC, Prete D, Griesi A, Guazzelli L, Gemmi M, Caporali S, Calisi N, Pomelli CS, Rossella F. Fe-functionalized paramagnetic sporopollenin from pollen grains: one-pot synthesis using ionic liquids. Sci Rep 2020; 10:12005. [PMID: 32686728 PMCID: PMC7371869 DOI: 10.1038/s41598-020-68875-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 04/15/2020] [Indexed: 11/15/2022] Open
Abstract
The preparation of Fe-decorated sporopollenins was achieved using pollen grains and an ionic liquid as solvent and functionalizing agent. The integrity of the organic capsules was ascertained through scanning electron microscopy studies. The presence of Fe in the capsule was investigated using FT-IR, X-ray photoemission spectroscopy and energy-dispersive X-ray spectroscopy. Electron paramagnetic resonance and magnetization measurements allowed us to demonstrate the paramagnetic behavior of our Fe-functionalized sporopollenin. A few potential applications of pollen-based systems functionalized with magnetic metal ions via ionic liquids are discussed.
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Affiliation(s)
- C Chiappe
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126, Pisa, Italy
| | - M J Rodriguez-Douton
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126, Pisa, Italy
| | - M C Mozzati
- Dipartimento di Fisica, Università di Pavia, Via Bassi 6, 27100, Pavia, Italy
| | - D Prete
- NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Piazza San Silvestro 12, 56126, Pisa, Italy
| | - A Griesi
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro, 12, 56127, Pisa, Italy
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - L Guazzelli
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126, Pisa, Italy
| | - M Gemmi
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro, 12, 56127, Pisa, Italy
| | - S Caporali
- Dipartimento di Ingegneria Industriale, Università di Firenze, Via di S. Marta 3, 50129, Firenze, Italy
- INSTM, Via Giusti 9, 50123, Firenze, Italy
| | - N Calisi
- Dipartimento di Ingegneria Industriale, Università di Firenze, Via di S. Marta 3, 50129, Firenze, Italy
- INSTM, Via Giusti 9, 50123, Firenze, Italy
| | - C S Pomelli
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126, Pisa, Italy.
| | - F Rossella
- NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Piazza San Silvestro 12, 56126, Pisa, Italy
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9
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González-Rivera J, Husanu E, Mero A, Ferrari C, Duce C, Tinè MR, D'Andrea F, Pomelli CS, Guazzelli L. Insights into microwave heating response and thermal decomposition behavior of deep eutectic solvents. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112357] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Pomelli CS, D’Andrea F, Mezzetta A, Guazzelli L. Exploiting pollen and sporopollenin for the sustainable production of microstructures. NEW J CHEM 2020. [DOI: 10.1039/c9nj05082e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Pollen grains can be easily processed in order to obtain versatile and sustainable microcapsules.
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Affiliation(s)
| | | | - Andrea Mezzetta
- Dipartimento di Farmacia – Università di Pisa
- 56125 Pisa
- Italy
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11
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Evaluation of the effect of the dicationic ionic liquid structure on the cycloaddition of CO2 to epoxides. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.07.034] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Production of Levulinic Acid via Cellulose Conversion Over Metal Oxide-Loaded MOF Catalysts in Aqueous Medium. Catal Letters 2019. [DOI: 10.1007/s10562-019-03023-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Piras AM, Fabiano A, Sartini S, Zambito Y, Braccini S, Chiellini F, Cataldi AG, Bartoli F, de la Fuente A, Erba PA. pH-Responsive Carboxymethylcellulose Nanoparticles for 68Ga-WBC Labeling in PET Imaging. Polymers (Basel) 2019; 11:polym11101615. [PMID: 31590371 PMCID: PMC6835547 DOI: 10.3390/polym11101615] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 02/07/2023] Open
Abstract
Carboxymethylcellulose (CMC) is a well-known pharmaceutical polymer, recently gaining attention in the field of nanomedicine, especially as a polyelectrolyte agent for the formation of complexes with oppositely charged macromolecules. Here, we report on the application of pH-sensitive pharmaceutical grade CMC-based nanoparticles (NP) for white blood cells (WBC) PET imaging. In this context and as an alternative to 99mTc-HMPAO SPECT labeling, the use of 68Ga3+ as PET radionuclide was investigated since, at early time points, it could provide the greater spatial resolution and patient convenience of PET tomography over SPECT clinical practices. Two operator-friendly kit-type formulations were compared, with the intention of radiolabeling within a short time (10 min), under mild conditions (physiological pH, room temperature) and in agreement with the actual clinically applied guidelines. NP were labeled by directly using 68Ga3+ eluted in HCL 0.05 N, from hospital suited 68Ge/68Ga generator and in absence of chelator. The first kit type approach involved the application of 68Ga3+ as an ionotropic gelation agent for in-situ forming NP. The second kit type approach concerned the re-hydration of a proper freeze-dried injectable NP powder. pH-sensitive NP with 250 nm average diameter and 80% labeling efficacy were obtained. The NP dispersant medium, including a cryoprotective agent, was modulated in order to optimize the Zeta potential value (−18 mV), minimize the NP interaction with serum proteins and guarantee a physiological environment for WBC during NP incubation. Time-dependent WBC radiolabeling was correlated to NP uptake by using both confocal and FT-IR microscopies. The ready to use lyophilized NP formulation approach appears promising as a straightforward 68Ga-WBC labeling tool for PET imaging applications.
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Affiliation(s)
- Anna Maria Piras
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126, Pisa, Italy.
| | - Angela Fabiano
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126, Pisa, Italy.
| | - Stefania Sartini
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126, Pisa, Italy.
| | - Ylenia Zambito
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126, Pisa, Italy.
| | - Simona Braccini
- Department of Chemistry and Industrial Chemistry, UdR INSTM - Pisa, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy.
| | - Federica Chiellini
- Department of Chemistry and Industrial Chemistry, UdR INSTM - Pisa, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy.
| | - Angela G Cataldi
- Nuclear Medicine, Department of Translational Research and Advanced Technologies in Medicine and Surgery, University of Pisa and Azienda Ospedaliero Universitaria Pisana, 56126 Pisa, Italy.
| | - Francesco Bartoli
- Nuclear Medicine, Department of Translational Research and Advanced Technologies in Medicine and Surgery, University of Pisa and Azienda Ospedaliero Universitaria Pisana, 56126 Pisa, Italy.
| | - Ana de la Fuente
- Nuclear Medicine, Department of Translational Research and Advanced Technologies in Medicine and Surgery, University of Pisa and Azienda Ospedaliero Universitaria Pisana, 56126 Pisa, Italy.
| | - Paola Anna Erba
- Nuclear Medicine, Department of Translational Research and Advanced Technologies in Medicine and Surgery, University of Pisa and Azienda Ospedaliero Universitaria Pisana, 56126 Pisa, Italy.
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14
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Mezzetta A, Poderelli L, D'Andrea F, Pomelli CS, Chiappe C, Guazzelli L. Unexpected Intrinsic Lability of Thiol-Functionalized Carboxylate Imidazolium Ionic Liquids. Molecules 2019; 24:E3571. [PMID: 31623295 PMCID: PMC6804084 DOI: 10.3390/molecules24193571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/26/2019] [Accepted: 09/30/2019] [Indexed: 11/16/2022] Open
Abstract
New thiol-functionalized carboxylate ionic liquids (ILs), varying both for the cation and for the anion structures, have been prepared as new potential redox switching systems by reacting either 3-mercapto propionic acid (3-MPA) or N-acetyl-cysteine (NAC) with commercially available methyl carbonate ILs. Different ratios of thiol/disulfide ILs were obtained depending both on the acid employed in the neutralization reaction and on the reaction conditions used. Surprisingly, the imidazolium ILs displayed limited thermal stability which resulted in the formation of an imidazole 2-thione and a new sulfide ionic liquid. Conversely, the formation of the imidazole 2-thione was not observed when phosphonium disulfide ILs were heated, thus confirming the involvement of the imidazolium ring in an unexpected side reaction. An insight into the mechanism of the decomposition has been provided by means of DFT calculations.
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Affiliation(s)
- Andrea Mezzetta
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy.
| | - Lorenzo Poderelli
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy.
| | - Felicia D'Andrea
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy.
| | | | - Cinzia Chiappe
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy.
| | - Lorenzo Guazzelli
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy.
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15
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Mezzetta A, Łuczak J, Woch J, Chiappe C, Nowicki J, Guazzelli L. Surface active fatty acid ILs: Influence of the hydrophobic tail and/or the imidazolium hydroxyl functionalization on aggregates formation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111155] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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16
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Di Pietro S, Bordoni V, Mezzetta A, Chiappe C, Signore G, Guazzelli L, Di Bussolo V. Remarkable Effect of [Li(G4)]TFSI Solvate Ionic Liquid (SIL) on the Regio- and Stereoselective Ring Opening of α-Gluco Carbasugar 1,2-Epoxides. Molecules 2019; 24:E2946. [PMID: 31416186 PMCID: PMC6720504 DOI: 10.3390/molecules24162946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/09/2019] [Accepted: 08/13/2019] [Indexed: 11/16/2022] Open
Abstract
Carba analogues of biologically relevant natural carbohydrates are promising structures for the development of future drugs endowed with enhanced hydrolytic stability. An open synthetic challenge in this field is the optimization of new methodologies for the stereo- and regioselective opening of α-gluco carbasugar 1,2-epoxides that allow for the preparation of pseudo mono- and disaccharides of great interest. Therefore, we investigated the effect of Lewis acids and solvate ionic liquids (SILs) on the epoxide ring opening of a model substrate. Of particular interest was the complete stereo- and regioselectivity, albeit limited to simple nucleophiles, toward the desired C(1) isomer that was observed using LiClO4. The results obtained with SILs were also remarkable. In particular, Li[NTf2]/tetraglyme ([Li(G4)]TFSI) was able to function as a Lewis acid and to direct the attack of the nucleophile preferentially at the pseudo anomeric position, even with a more complex and synthetically interesting nucleophile. The regioselectivity observed for LiClO4 and [Li(G4)]TFSI was tentatively ascribed to the formation of a bidentate chelating system, which changed the conformational equilibrium and ultimately permitted a trans-diaxial attack on C(1). To the best of our knowledge, we report here the first case in which SILs were successfully employed in a ring-opening process of epoxides.
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Affiliation(s)
| | - Vittorio Bordoni
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy
- Present address: Max Planck Institute of Colloids and Interfaces, Am Mühlen- berg 1, 14476 Potsdam, Germany
| | - Andrea Mezzetta
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Cinzia Chiappe
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Giovanni Signore
- Fondazione Pisana per la Scienza, via F. Giovannini 13, San Giuliano Terme (PI), 56017 Pisa, Italy
| | - Lorenzo Guazzelli
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy.
| | - Valeria Di Bussolo
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via G. Moruzzi 3, 56124 Pisa, Italy.
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17
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Florio W, Becherini S, D'Andrea F, Lupetti A, Chiappe C, Guazzelli L. Comparative evaluation of antimicrobial activity of different types of ionic liquids. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109907. [PMID: 31499958 DOI: 10.1016/j.msec.2019.109907] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 10/26/2022]
Abstract
In order to identify most suitable ionic liquids (ILs) for potential applications in infection prevention and control, in the present study we comparatively evaluated the antimicrobial potency and hemolytic activity of 15 ILs, including 11 previously described and four newly synthesized ILs, using standard microbiological procedures against Gram-positive and Gram-negative bacteria. ILs showing the lowest minimum inhibitory concentration (MIC) were tested for their hemolytic activity. Three ILs characterized by low MIC values and low hemolytic activity, namely 1-methyl-3-dodecylimidazolium bromide, 1-dodecyl-1-methylpyrrolidinium bromide, and 1-dodecyl-1-methylpiperidinium bromide were further investigated to determine their minimum bactericidal concentration (MBC), and their ability to inhibit biofilm formation by Staphylococcus aureus or Pseudomonas aeruginosa. Killing kinetics results revealed that both Gram-positive and Gram-negative bacteria are rapidly killed after exposure to MBC of the selected ILs. Furthermore, the selected ILs efficiently inhibited biofilm formation by S. aureus or P. aeruginosa. To our knowledge, this is the first systematic study investigating the antimicrobial potential of different types of ionic liquids using standard microbiological procedures. In the overall, the selected ILs showed low hemolytic and powerful antimicrobial activity, and efficient inhibition of biofilm formation, especially against S. aureus, suggesting their possible application as anti-biofilm agents.
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Affiliation(s)
- Walter Florio
- Dipartimento di Ricerca Traslazionale e delle Nuove Tecnologie in Medicina e Chirurgia, Università di Pisa, Pisa, Italy
| | | | | | - Antonella Lupetti
- Dipartimento di Ricerca Traslazionale e delle Nuove Tecnologie in Medicina e Chirurgia, Università di Pisa, Pisa, Italy.
| | - Cinzia Chiappe
- Dipartimento di Farmacia, Università di Pisa, Pisa, Italy
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Boonyakarn T, Wataniyakul P, Boonnoun P, Quitain AT, Kida T, Sasaki M, Laosiripojana N, Jongsomjit B, Shotipruk A. Enhanced Levulinic Acid Production from Cellulose by Combined Brønsted Hydrothermal Carbon and Lewis Acid Catalysts. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05332] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tat Boonyakarn
- Chemical Engineering Research Unit for Value Adding of Bioresources, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Phayathai Road, Bangkok 10330, Thailand
| | - Piyaporn Wataniyakul
- Chemical Engineering Research Unit for Value Adding of Bioresources, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Phayathai Road, Bangkok 10330, Thailand
| | - Panatpong Boonnoun
- Department of Industrial Engineering, Faculty of Engineering, Naresuan University, Phitsanulok 65000, Thailand
| | - Armando T. Quitain
- Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Kumamoto University, Kumamoto 860-8555, Japan
| | - Tetsuya Kida
- Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Kumamoto University, Kumamoto 860-8555, Japan
| | - Mitsuru Sasaki
- Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Kumamoto University, Kumamoto 860-8555, Japan
| | - Navadol Laosiripojana
- The Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Prachauthit Road, Bangmod, Bangkok 10140, Thailand
| | - Bunjerd Jongsomjit
- Chemical Engineering Research Unit for Value Adding of Bioresources, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Phayathai Road, Bangkok 10330, Thailand
| | - Artiwan Shotipruk
- Chemical Engineering Research Unit for Value Adding of Bioresources, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Phayathai Road, Bangkok 10330, Thailand
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Mezzetta A, Becherini S, Pretti C, Monni G, Casu V, Chiappe C, Guazzelli L. Insights into the levulinate-based ionic liquid class: synthesis, cellulose dissolution evaluation and ecotoxicity assessment. NEW J CHEM 2019. [DOI: 10.1039/c9nj03239h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New levulinate ionic liquids (ILs) were able to dissolve cellulose in high amounts. The ecotoxicity profiles of these new ILs were also assessed.
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Affiliation(s)
| | | | - Carlo Pretti
- Department of Veterinary Sciences
- University of Pisa
- Via Livornese lato monte
- San Piero a Grado
- PI 56122
| | - Gianfranca Monni
- Interuniversity Consortium of Marine Biology and Applied Ecology “G. Bacci”
- Leghorn
- Italy
| | - Valentina Casu
- Interuniversity Consortium of Marine Biology and Applied Ecology “G. Bacci”
- Leghorn
- Italy
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Becherini S, Mezzetta A, Chiappe C, Guazzelli L. Levulinate amidinium protic ionic liquids (PILs) as suitable media for the dissolution and levulination of cellulose. NEW J CHEM 2019. [DOI: 10.1039/c9nj00191c] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Levulinate protic ionic liquids allow for the dissolution and the levulination of their parent polysaccharide.
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21
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Guglielmero L, Guazzelli L, Toncelli A, Chiappe C, Tredicucci A, Pomelli CS. An insight into the intermolecular vibrational modes of dicationic ionic liquids through far-infrared spectroscopy and DFT calculations. RSC Adv 2019; 9:30269-30276. [PMID: 35530250 PMCID: PMC9072084 DOI: 10.1039/c9ra05735h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 09/18/2019] [Indexed: 12/03/2022] Open
Abstract
Dicationic ionic liquids (DILs) are a subclass of the ionic liquid (IL) family and are characterized by two cationic head groups linked by means of a spacer. While DILs are increasingly attracting interest due to their peculiar physico-chemical properties, there is still a lack of understanding of their intermolecular interactions. Herein, we report our investigations on the intermolecular vibrational modes of two bromide DILs and of a bistriflimide DIL. The minimal possible neutral cluster of ions was studied as a simplified model of these systems and was optimized at the DFT level. Normal modes of two sandwich-like conformers were then calculated using the harmonic approximation with analytical computation of the second derivatives of molecular energy with respect to the atomic coordinates. The calculated spectra were compared to far-infrared experimental spectra and two groups of peaks over three, for the two bromide DILs, and three over five, for the Tf2N− DIL, were described by the proposed neutral cluster model. Therefore, this model represents a reliable and computationally affordable model for the exploration of the intermolecular interactions of this kind of system. The minimal cluster of ions represents a reliable and computationally affordable model for the exploration of the intermolecular interactions of dicationic ionic liquids.![]()
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Affiliation(s)
| | | | - Alessandra Toncelli
- Dipartimento di Fisica “E. Fermi” and Istituto Nanoscienze CNR
- Università di Pisa
- 56127 Pisa
- Italy
| | | | - Alessandro Tredicucci
- Dipartimento di Fisica “E. Fermi” and Istituto Nanoscienze CNR
- Università di Pisa
- 56127 Pisa
- Italy
- Laboratorio NEST
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Chakraborti T, Desouza A, Adhikari J. Prediction of Thermodynamic Properties of Levulinic Acid via Molecular Simulation Techniques. ACS OMEGA 2018; 3:18877-18884. [PMID: 31458449 PMCID: PMC6644150 DOI: 10.1021/acsomega.8b02793] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 12/14/2018] [Indexed: 06/10/2023]
Abstract
Second-generation biofuels are a complex mixture of organic compounds that can be further processed to hydrocarbon fuels and other valuable chemicals. One such chemical is levulinic acid (IUPAC name: 4-oxo pentanoic acid), which is a highly versatile ketoacid obtained from cellulose present in agricultural byproducts. For oxygen-containing compounds that decompose at elevated temperatures and pressures, determining the vapor-liquid equilibria data at high temperatures via the experimental route may be challenging. The molecular simulation approach is a cost-effective tool to obtain the necessary data while also allowing us to understand the microscopic origins of macroscopic observable properties. We have employed the transferable potential for phase equilibria-united atom force field to describe the interactions in this system with the parameters for a torsional interaction that are not reported in the literature (levulinic acid is a ketoacid) being determined from density functional theory calculations. We have verified our parameterization via density computations in the isothermal-isobaric ensemble and by comparing our simulation results with the corresponding data from experiments reported in the literature. We have performed grand-canonical transition-matrix Monte Carlo simulations in the temperature range from 580 to 690 K to estimate the vapor-liquid coexistence curves in the temperature-density plane and the Clapeyron plots. From this data, the critical point (T C = 755 K, ρC = 285.4 kg/m3, and P C = 30.57 bar) has been estimated, and this may be used as input to the equations of state employed in process simulation software for design of industrial separation processes including those for "biorefining". As levulinic acid is a "ketoacid", hydrogen bonding occurs, and the liquid phase structure has also been studied using radial distribution functions.
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Affiliation(s)
| | - Anish Desouza
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Jhumpa Adhikari
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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23
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Abstract
Chemocatalytic transformation of lignocellulosic biomass to value-added chemicals has attracted global interest in order to build up sustainable societies. Cellulose, the first most abundant constituent of lignocellulosic biomass, has received extensive attention for its comprehensive utilization of resource, such as its catalytic conversion into high value-added chemicals and fuels (e.g., HMF, DMF, and isosorbide). However, the low reactivity of cellulose has prevented its use in chemical industry due to stable chemical structure and poor solubility in common solvents over the cellulose. Recently, homogeneous or heterogeneous catalysis for the conversion of cellulose has been expected to overcome this issue, because various types of pretreatment and homogeneous or heterogeneous catalysts can be designed and applied in a wide range of reaction conditions. In this review, we show the present situation and perspective of homogeneous or heterogeneous catalysis for the direct conversion of cellulose into useful platform chemicals.
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