1
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Ertekin UE, Okur HI. Greasy Cations Bind to Neutral Macromolecules in Aqueous Solution. J Phys Chem Lett 2024; 15:6151-6157. [PMID: 38835205 PMCID: PMC11181456 DOI: 10.1021/acs.jpclett.4c00925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/07/2024] [Accepted: 05/22/2024] [Indexed: 06/06/2024]
Abstract
Ions influence the solution properties of macromolecules. Although much is known about anions, cationic effects are considered mostly in terms of weak interactions or exclusion from neutral interfaces. Herein, we have systematically studied the effect of quaternary tetraalkylammonium cations (NH4+, NMe4+, NEt4+, NPr4+, NBu4+) on the phase transition of poly(N-isopropylacrylamide) (PNIPAM) in aqueous solution. Solubility measurements were coupled to 1H NMR and ATR-FTIR spectroscopic measurements. The solubility and NMR measurements revealed a direct binding between the greasiest cations and the isopropyl group of the macromolecule, evidenced from the nonlinear, Langmuir-type chemical shift response only at the isopropyl NMR signals with increasing salt concentrations. The ATR-FTIR measurements focusing on the amide oxygen showed that it is not the main direct-binding site. Additionally, the salting-out effects of the greasier cations correlate with their hydration entropies. These results demonstrate that the most weakly hydrated cations can bind to macromolecules as strongly as the weakly hydrated Hofmeister anions.
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Affiliation(s)
- Umay Eren Ertekin
- Department
of Chemistry, Faculty of Science, Bilkent
University, 06800 Ankara, Turkey
| | - Halil Ibrahim Okur
- Department
of Chemistry, Faculty of Science, Bilkent
University, 06800 Ankara, Turkey
- National
Nanotechnology Research Center (UNAM), Bilkent
University, 06800 Ankara, Turkey
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2
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Liu C, Raza F, Qian H, Tian X. Recent advances in poly(ionic liquid)s for biomedical application. Biomater Sci 2022; 10:2524-2539. [PMID: 35411889 DOI: 10.1039/d2bm00046f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Poly(ionic liquid)s (PILs) are polymers containing ions in their side-chain or backbone, and the designability and outstanding physicochemical properties of PILs have attracted widespread attention from researchers. PILs have specific characteristics, including negligible vapor pressure, high thermal and chemical stability, non-flammability, and self-assembly capabilities. PILs can be well combined with advanced analytical instruments and technology and have made outstanding contributions to the development of biomedicine aiding in the continuous advancement of science and technology. Here we reviewed the advances of PILs in the biomedical field in the past five years with a focus on applications in proteomics, drug delivery, and development. This paper aims to engage pharmaceutical and biomedical scientists to full understand PILs and accelerate the progress from laboratory research to industrialization.
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Affiliation(s)
- Chunxia Liu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China. .,Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Faisal Raza
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan, Road, Shanghai, 200240, China
| | - Hai Qian
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China.
| | - Xin Tian
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China. .,Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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3
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Han Q, Brown SJ, Drummond CJ, Greaves TL. Protein aggregation and crystallization with ionic liquids: Insights into the influence of solvent properties. J Colloid Interface Sci 2022; 608:1173-1190. [PMID: 34735853 DOI: 10.1016/j.jcis.2021.10.087] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 12/13/2022]
Abstract
Ionic liquids (ILs) have been used in solvents for proteins in many applications, including biotechnology, pharmaceutics, and medicine due to their tunable physicochemical and biological properties. Protein aggregation is often undesirable, and predominantly occurs during bioprocesses, while the aggregation process can be reversible or irreversible and the aggregates formed can be native/non-native and soluble/insoluble. Recent studies have clearly identified key properties of ILs and IL-water mixtures related to protein performance, suggesting the use of the tailorable properties of ILs to inhibit protein aggregation, to promote protein crystallization, and to control protein aggregation pathways. This review discusses the critical properties of IL and IL-water mixtures and presents the latest understanding of the protein aggregation pathways and the development of IL systems that affect or control the protein aggregation process. Through this feature article, we hope to inspire further advances in understanding and new approaches to controlling protein behavior to optimize bioprocesses.
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Affiliation(s)
- Qi Han
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Stuart J Brown
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Tamar L Greaves
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
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4
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5
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Ciftcioglu GA, Frank CW. Effect of Increased Ionic Liquid Uptake via Thermal Annealing on Mechanical Properties of Polyimide-Poly(ethylene glycol) Segmented Block Copolymer Membranes. Molecules 2021; 26:2143. [PMID: 33917907 PMCID: PMC8068311 DOI: 10.3390/molecules26082143] [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: 03/17/2021] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 11/16/2022] Open
Abstract
Proton exchange membranes (PEMs) suffer performance degradation under certain conditions-temperatures greater than 80 °C, relative humidity less than 50%, and water retention less than 22%. Novel materials are needed that have improved water retention, stability at higher temperatures, flexibility, conductivity, and the ability to function at low humidity. This work focuses on polyimide-poly(ethylene glycol) (PI-PEG) segmented block copolymer (SBC) membranes with high conductivity and mechanical strength. Membranes were prepared with one of two ionic liquids (ILs), either ethylammonium nitrate (EAN) or propylammonium nitrate (PAN), incorporated within the membrane structure to enhance the proton exchange capability. Ionic liquid uptake capacities were compared for two different temperatures, 25 and 60 °C. Then, conductivities were measured for a series of combinations of undoped or doped unannealed and undoped or doped annealed membranes. Stress and strain tests were performed for unannealed and thermally annealed undoped membranes. Later, these experiments were repeated for doped unannealed and thermally annealed. Mechanical and conductivity data were interpreted in the context of prior small angle X-ray scattering (SAXS) studies on similar materials. We have shown that varying the compositions of polyimide-poly(ethylene glycol) (PI-PEG) SBCs allowed the morphology in the system to be tuned. Since polyimides (PI) are made from the condensation of dianhydrides and diamines, this was accomplished using components having different functional groups. Dianhydrides having either fluorinated or oxygenated functional groups and diamines having either fluorinated or oxygenated diamines were used as well as mixtures of these species. Changing the morphology by creating macrophase separation elevated the IL uptake capacities, and in turn, increased their conductivities by a factor of three or more compared to Nafion 115. The stiffness of the membranes synthesized in this work was comparable to Nafion 115 and, thus, sufficient for practical applications.
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Affiliation(s)
- Gokcen A. Ciftcioglu
- Department of Chemical Engineering, Marmara University, Istanbul 34722, Turkey
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA;
| | - Curtis W. Frank
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA;
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6
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Han Q, Wang X, Bynre N. Utilizing Water Activity as a Simple Measure to Understand Hydrophobicity in Ionic Liquids. Front Chem 2019; 7:112. [PMID: 30891443 PMCID: PMC6412151 DOI: 10.3389/fchem.2019.00112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 02/12/2019] [Indexed: 12/02/2022] Open
Abstract
Ionic liquids (ILs) are regarded as designable solvents finding use in a variety of applications. One of the challenges of the design and selection process is to understand the ionic liquid properties. In this work, we selected seven ILs containing three types of hydrophilic anions and examined several key properties, which are correlated to hydrophobicity. In particular, we measured the hydrogen bond basicity β and water activity aw of IL and IL-water mixtures, and suggested that these two properties are linearly correlated particularly in hydrated ILs. We then used NMR to evaluate the chemical shift of H2O in hydrated ILs. Correlating the outcomes of each of these techniques with respect to understanding the hydrophobicity of the ILs is discussed. It is shown that water activity aw is the most facile technique to represent and understand hydrophobicity of ILs.
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Affiliation(s)
- Qi Han
- Institute for Frontier Materials, Deakin University, Geelong, VIC, Australia
| | - Xungai Wang
- Institute for Frontier Materials, Deakin University, Geelong, VIC, Australia
| | - Nolene Bynre
- Institute for Frontier Materials, Deakin University, Geelong, VIC, Australia
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7
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Masuda T, Ueki T, Tamate R, Matsukawa K, Yoshida R. Chemomechanical Motion of a Self‐Oscillating Gel in a Protic Ionic Liquid. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tsukuru Masuda
- Department of Materials EngineeringSchool of EngineeringThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Present address: Department of Life Science and TechnologyTokyo Institute of Technology 4259 B-57, Nagatsuta Yokohama 226-8501 Japan
| | - Takeshi Ueki
- WPI Research Center International Center for Materials Nanoarchitectonics (MANA)National Institute of Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Ryota Tamate
- Department of Materials EngineeringSchool of EngineeringThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Present address: Department of Chemistry and BiotechnologyYokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Ko Matsukawa
- Department of Materials EngineeringSchool of EngineeringThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Ryo Yoshida
- Department of Materials EngineeringSchool of EngineeringThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
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8
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Masuda T, Ueki T, Tamate R, Matsukawa K, Yoshida R. Chemomechanical Motion of a Self-Oscillating Gel in a Protic Ionic Liquid. Angew Chem Int Ed Engl 2018; 57:16693-16697. [PMID: 30378225 DOI: 10.1002/anie.201809413] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/11/2018] [Indexed: 01/01/2023]
Abstract
An autonomous swelling-deswelling oscillation of polymer gels in a hydrated protic ionic liquid (PIL) as a proton source for the Belousov-Zhabotinsky (BZ) reaction is presented. Methylammonium hydrogen sulfate ([maH+ ][HSO4 - ]) was employed as the PIL because it provides stable redox oscillation in the BZ reaction. Due to the significantly higher pKa for [maH+ ][HSO4 - ] than those for conventional proton sources for the BZ reaction, chemomechanical oscillation can be expected under weaker acidic conditions. The self-oscillating polymer was designed as a ternary random copolymer of N-isopropylacrylamide, N-(3-aminopropyl)methacrylamide, and the Ru(bpy)3 moiety as a catalyst for the BZ reaction. The copolymer exhibited spontaneous soluble-insoluble oscillation in hydrated [maH+ ][HSO4 - ] containing NaBrO3 and malonic acid. Macroscopic swelling-deswelling oscillation of the porous bulk gel prepared by covalently connecting microgel particles was also observed.
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Affiliation(s)
- Tsukuru Masuda
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Present address: Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama, 226-8501, Japan
| | - Takeshi Ueki
- WPI Research Center International Center for Materials Nanoarchitectonics (MANA), National Institute of Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Ryota Tamate
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Present address: Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Ko Matsukawa
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Ryo Yoshida
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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9
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Assessing the efficiency of imidazolium-based ionic liquids on the phase behavior of a synthetic biomedical thermoresponsive polymer. J Colloid Interface Sci 2018; 511:174-183. [DOI: 10.1016/j.jcis.2017.09.095] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 01/29/2023]
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10
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Umapathi R, Reddy PM, Rani A, Venkatesu P. Influence of additives on thermoresponsive polymers in aqueous media: a case study of poly(N-isopropylacrylamide). Phys Chem Chem Phys 2018; 20:9717-9744. [DOI: 10.1039/c7cp08172c] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Thermoresponsive polymers (TRPs) in different solvent media have been studied over a long period and are important from both scientific and technical points of view.
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Affiliation(s)
| | - P. Madhusudhana Reddy
- Department of Chemistry
- University of Delhi
- Delhi-110 007
- India
- Department of Chemical Engineering
| | - Anjeeta Rani
- Department of Chemistry
- University of Delhi
- Delhi-110 007
- India
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11
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Ueki T, Matsukawa K, Masuda T, Yoshida R. Protic Ionic Liquids for the Belousov–Zhabotinsky Reaction: Aspects of the BZ Reaction in Protic Ionic Liquids and Its Use for the Autonomous Coil–Globule Oscillation of a Linear Polymer. J Phys Chem B 2017; 121:4592-4599. [DOI: 10.1021/acs.jpcb.7b01309] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takeshi Ueki
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Ko Matsukawa
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tsukuru Masuda
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryo Yoshida
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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12
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de Oliveira TE, Mukherji D, Kremer K, Netz PA. Effects of stereochemistry and copolymerization on the LCST of PNIPAm. J Chem Phys 2017; 146:034904. [DOI: 10.1063/1.4974165] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Tiago E. de Oliveira
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Max-Planck Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | - Debashish Mukherji
- Max-Planck Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | - Kurt Kremer
- Max-Planck Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | - Paulo A. Netz
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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13
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Umapathi R, Mkhize TY, Venkatesu P, Deenadayalu N. The influence of various alkylammonium-based ionic liquids on the hydration state of temperature-responsive polymer. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Zhang Y, Tang H, Wu P. Multiple interaction regulated phase transition behavior of thermo-responsive copolymers containing cationic poly(ionic liquid)s. Phys Chem Chem Phys 2017; 19:30804-30813. [DOI: 10.1039/c7cp05846b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Schematic illustration of the phase transition mechanism of the P(OEGMA-co-BVIm[SCN]) copolymer.
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Affiliation(s)
- Yingna Zhang
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science and Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
- China
| | - Hui Tang
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science and Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
- China
| | - Peiyi Wu
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science and Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
- China
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15
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Liu L, Kou R, Liu G. Ion specificities of artificial macromolecules. SOFT MATTER 2016; 13:68-80. [PMID: 27906410 DOI: 10.1039/c6sm01773h] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Artificial macromolecules are well-defined synthetic polymers, with a relatively simple structure as compared to naturally occurring macromolecules. This review focuses on the ion specificities of artifical macromolecules. Ion specificities are influenced by solvent-mediated indirect ion-macromolecule interactions and also by direct ion-macromolecule interactions. In aqueous solutions, the role of water-mediated indirect ion-macromolecule interactions will be discussed. The addition of organic solvents to aqueous solutions significantly changes the ion specificities due to the formation of water-organic solvent complexes. For direct ion-macromolecule interactions, we will discuss specific ion-pairing interactions for charged macromolecules and specific ion-neutral site interactions for uncharged macromolecules. When the medium conditions change from dilute solutions to crowded environments, the ion specificities can be modified by either the volume exclusion effect, the variation of dielectric constant, or the interactions between ions, macromolecules, and crowding agents.
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Affiliation(s)
- Lvdan Liu
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, P. R. China 230026.
| | - Ran Kou
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, P. R. China 230026.
| | - Guangming Liu
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, P. R. China 230026.
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16
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Han Q, Wang X, Byrne N. Understanding the Influence of Key Ionic Liquid Properties on the Hydrolytic Activity of
Thermomyces lanuginosus
Lipase. ChemCatChem 2016. [DOI: 10.1002/cctc.201600014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qi Han
- Institute for Frontier Materials Deakin University Pigdons Road Waurn Ponds Victoria 3217 Australia
| | - Xungai Wang
- Institute for Frontier Materials Deakin University Pigdons Road Waurn Ponds Victoria 3217 Australia
| | - Nolene Byrne
- Institute for Frontier Materials Deakin University Pigdons Road Waurn Ponds Victoria 3217 Australia
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17
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Misono T, Okada K, Sakai K, Abe M, Sakai H. Surface Adsorption and Micelle Formation of Polyoxyethylene-type Nonionic Surfactants in Mixtures of Water and Hydrophilic Imidazolium-type Ionic Liquid. J Oleo Sci 2016; 65:499-506. [DOI: 10.5650/jos.ess15277] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Takeshi Misono
- Research Institute for Science and Technology, Tokyo University of Science
| | - Kohei Okada
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
| | - Kenichi Sakai
- Research Institute for Science and Technology, Tokyo University of Science
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
| | - Masahiko Abe
- Research Institute for Science and Technology, Tokyo University of Science
| | - Hideki Sakai
- Research Institute for Science and Technology, Tokyo University of Science
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
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18
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Wang LH, Wu T, Zhang Z, You YZ. Unconventional Transitions of Poly(N-isopropylacrylamide) upon Heating in the Presence of Multiple Noncovalent Interactions. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02106] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Long-Hai Wang
- Key Lab
of Soft Matter Chemistry,
Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Ting Wu
- Key Lab
of Soft Matter Chemistry,
Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Ze Zhang
- Key Lab
of Soft Matter Chemistry,
Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Ye-Zi You
- Key Lab
of Soft Matter Chemistry,
Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
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19
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Horigome K, Ueki T, Suzuki D. Direct visualization of swollen microgels by scanning electron microscopy using ionic liquids. Polym J 2015. [DOI: 10.1038/pj.2015.103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Greaves TL, Drummond CJ. Protic Ionic Liquids: Evolving Structure-Property Relationships and Expanding Applications. Chem Rev 2015; 115:11379-448. [PMID: 26426209 DOI: 10.1021/acs.chemrev.5b00158] [Citation(s) in RCA: 498] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tamar L Greaves
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Calum J Drummond
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
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21
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Affiliation(s)
- Robert Hayes
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
| | - Gregory G. Warr
- School
of Chemistry, The University of Sydney, NSW 2006, Sydney, Australia
| | - Rob Atkin
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
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22
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Chang CJ, Reddy PM, Hsieh SR, Huang HC. Influence of imidazolium based green solvents on volume phase transition temperature of crosslinked poly(N-isopropylacrylamide-co-acrylic acid) hydrogel. SOFT MATTER 2015; 11:785-792. [PMID: 25502756 DOI: 10.1039/c4sm01994f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The volume phase transition temperature (VPTT) of crosslinked poly(N-isopropylacrylamide-co-acrylic acid) (PNIPAM-co-AA) hydrogel in water in the presence of five imidazolium based ionic liquids (ILs) was studied. The VPTT of PNIPAM-co-AA hydrogel can be modulated to different extents by the addition of different amounts of ILs. The modulations in VPTT values can be attributed to the IL-induced alterations in hydrophobic, hydrophilic and hydrogen bonding interactions of PNIPAM-co-AA hydrogel with the neighboring solvent and molecular chains. The influence of ILs having a common cation, 1-butyl-3-methylimidazolium cation ([Bmim]) and different anions, such as iodide (I-), tetrafluoroborate (BF4-), chloride (Cl-), acetate (CH3COO-) and hydrogen sulfate (HSO4-), on the phase transition of PNIPAM-co-AA hydrogel was monitored by the aid of differential scanning calorimetry (DSC), dynamic light scattering (DLS) and Fourier transform infrared (FT-IR) spectroscopy. Furthermore, the interfacial properties between aqueous IL and polymer surface were scrutinized with the help of contact angle (CA) measurements. The overall specific ranking of ILs in preserving the hydration layer around the PNIPAM-co-AA hydrogel in water was [Bmim][I]>[Bmim][BF4]>[Bmim][Cl]>[Bmim][Ac]>[Bmim][HSO4]. The trend of these ILs followed the well-known Hofmeister series. Interestingly, the PNIPAM-co-AA hydrogel in water shows abnormal salting-out property in the presence of [Bmim][BF4] at higher concentration and this abnormal behavior can be explained based on the lack of sufficient binding sites on the macromolecule for higher number of [Bmim][BF4] at a higher concentration.
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Affiliation(s)
- Chi-Jung Chang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan.
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23
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Zhou Y, Tang H, Wu P. Volume phase transition mechanism of poly[oligo(ethylene glycol)methacrylate] based thermo-responsive microgels with poly(ionic liquid) cross-linkers. Phys Chem Chem Phys 2015; 17:25525-35. [DOI: 10.1039/c5cp03676c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermodynamic volume phase transition mechanisms of poly[oligo(ethylene glycol)methacrylate] (POEGMA) microgels with poly(ionic liquid) (PIL) cross-linking moieties were investigated in detail on the basis of Fourier transform infrared (FTIR) spectroscopy.
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Affiliation(s)
- Yuanyuan Zhou
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science and Laboratory of Advanced Materials
- Fudan University
- Shanghai
| | - Hui Tang
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science and Laboratory of Advanced Materials
- Fudan University
- Shanghai
| | - Peiyi Wu
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science and Laboratory of Advanced Materials
- Fudan University
- Shanghai
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24
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Coletta E, Toney MF, Frank CW. Influences of liquid electrolyte and polyimide identity on the structure and conductivity of polyimide-poly(ethylene glycol) materials. J Appl Polym Sci 2014. [DOI: 10.1002/app.41675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Elyse Coletta
- Department of Chemical Engineering; Stanford University; Stanford California 94305
| | - Michael F. Toney
- Stanford Synchrotron Radiation Lightsource; Menlo Park California 94025
| | - Curtis W. Frank
- Department of Chemical Engineering; Stanford University; Stanford California 94305
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25
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Haladjova E, Toncheva-Moncheva N, Apostolova MD, Trzebicka B, Dworak A, Petrov P, Dimitrov I, Rangelov S, Tsvetanov CB. Polymeric Nanoparticle Engineering: From Temperature-Responsive Polymer Mesoglobules to Gene Delivery Systems. Biomacromolecules 2014; 15:4377-95. [DOI: 10.1021/bm501194g] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Emi Haladjova
- Institute
of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev”
St. 103A, 1113 Sofia, Bulgaria
| | - Natalia Toncheva-Moncheva
- Institute
of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev”
St. 103A, 1113 Sofia, Bulgaria
| | - Margarita D. Apostolova
- Institute
of Molecular Biology “Roumen Tsanev”, Bulgarian Academy of Sciences, “Akad. G. Bonchev” St. 21, 1113 Sofia, Bulgaria
| | - Barbara Trzebicka
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Andrzej Dworak
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Petar Petrov
- Institute
of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev”
St. 103A, 1113 Sofia, Bulgaria
| | - Ivaylo Dimitrov
- Institute
of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev”
St. 103A, 1113 Sofia, Bulgaria
| | - Stanislav Rangelov
- Institute
of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev”
St. 103A, 1113 Sofia, Bulgaria
| | - Christo B. Tsvetanov
- Institute
of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev”
St. 103A, 1113 Sofia, Bulgaria
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26
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Liu L, Wang T, Liu C, Lin K, Liu G, Zhang G. Specific Anion Effect in Water–Nonaqueous Solvent Mixtures: Interplay of the Interactions between Anion, Solvent, and Polymer. J Phys Chem B 2013; 117:10936-43. [DOI: 10.1021/jp406215c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lvdan Liu
- Department
of Chemical Physics, Hefei National Laboratory for Physical Sciences
at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Tao Wang
- Department
of Chemical Physics, Hefei National Laboratory for Physical Sciences
at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Chang Liu
- Department
of Chemical Physics, Hefei National Laboratory for Physical Sciences
at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Ke Lin
- Department
of Chemical Physics, Hefei National Laboratory for Physical Sciences
at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Guangming Liu
- Department
of Chemical Physics, Hefei National Laboratory for Physical Sciences
at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Guangzhao Zhang
- Faculty
of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
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