1
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Fu M, Moiseev RV, Hyder M, Hayes W, Amadesi S, Williams AC, Khutoryanskiy VV. Exploring Mucoadhesive and Toxicological Characteristics Following Modification of Linear Polyethylenimine with Various Anhydrides. Biomacromolecules 2024; 25:4831-4842. [PMID: 39074308 PMCID: PMC11323015 DOI: 10.1021/acs.biomac.4c00220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 07/15/2024] [Accepted: 07/19/2024] [Indexed: 07/31/2024]
Abstract
Linear polyethylenimine (L-PEI) has numerous applications, such as in pharmaceutical formulations, gene delivery, and water treatment. However, due to the presence of secondary amine groups, L-PEI shows a relatively high toxicity and low biocompatibility. Here, various organic anhydrides were used to modify L-PEI to reduce its toxicity and enhance its functionality. We selected methacrylic anhydride, crotonic anhydride, maleic anhydride, and succinic anhydride to modify L-PEI. The structure of the resulting derivatives was characterized using 1H NMR and FTIR spectroscopies, and their behavior in aqueous solutions was studied using turbidimetric and electrophoretic mobility measurements over a broad range of pHs. A fluorescence flow through method determined the mucoadhesive properties of the polymers to the bovine palpebral conjunctiva. Methacrylated L-PEI and crotonylated L-PEI showed strong mucoadhesive properties at pH 7.4, likely due to covalent bonding with mucin thiol groups. In contrast, maleylated and succinylated L-PEI were poorly mucoadhesive as the pH was above their isoelectric point, resulting in electrostatic repulsion between the polymers and mucin. The toxicity of these polymers was evaluated using in vivo assays with planaria and the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) cell viability assay in human alveolar epithelial cells. Moreover, the irritancy of polymers was assessed using a slug mucosa irritation assay. The results demonstrated that anhydride modification mitigated the adverse toxicity effects seen for parent L-PEI.
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Affiliation(s)
- Manfei Fu
- School
of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6DX, U.K.
| | - Roman V. Moiseev
- School
of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6DX, U.K.
- Physicochemical,
Ex Vivo and Invertebrate Tests and Analysis Centre (PEVITAC,www.pevitac.co.uk), University of Reading, Whiteknights, Reading RG6 6DX, U.K.
| | - Matthew Hyder
- Department
of Chemistry, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6DX, U.K.
| | - Wayne Hayes
- Department
of Chemistry, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6DX, U.K.
| | - Silvia Amadesi
- School
of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6DX, U.K.
| | - Adrian C. Williams
- School
of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6DX, U.K.
| | - Vitaliy V. Khutoryanskiy
- School
of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6DX, U.K.
- Physicochemical,
Ex Vivo and Invertebrate Tests and Analysis Centre (PEVITAC,www.pevitac.co.uk), University of Reading, Whiteknights, Reading RG6 6DX, U.K.
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2
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Lin CH, Wu JG, Lin HH, Luo SC. Electrified Interactions of Polyzwitterions with Charged Surfaces: Role of Dipole Orientation and Surface Potentials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:7653-7660. [PMID: 38532553 PMCID: PMC11008249 DOI: 10.1021/acs.langmuir.4c00343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/07/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024]
Abstract
The zwitterionic groups possess strong dipole moments, leading to inter- or intrachain interactions among zwitterionic polymers. This study aims to demonstrate the interaction of polyzwitterions poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC), and poly(carboxybetaine methacrylate) (PCBMA) with electrified surfaces, despite their electrically neutral nature. We studied the adsorption of polyzwitterions and their monomers on electrified surfaces by using an electrochemical quartz crystal microbalance with dissipation (EQCM-D). The interaction between zwitterionic molecules and charged surfaces is explored by adjusting the surface potentials. Interestingly, the adsorption of polyzwitterions can be influenced by external potential, primarily due to the formation of polyzwitterions restricting the mobility of zwitterionic groups, affecting the adsorption behavior of polyzwitterions based on the surface potential. The impact is determined by the arrangement of positive and negative ions within the zwitterionic groups, which are the dipole orientation. Additionally, surface potentials determine the adsorption rate, amount, and chain conformation of the adsorbed thin polyzwitterion layers. The effect of ionic strength was investigated by introducing electrolytes into the aqueous solutions to assess the range of influenced surface potentials.
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Affiliation(s)
- Chia-Hsuan Lin
- Department
of Materials Science and Engineering, National
Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Jhih-Guang Wu
- Department
of Materials Science and Engineering, National
Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Hsun-Hao Lin
- Department
of Materials Science and Engineering, National
Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Shyh-Chyang Luo
- Department
of Materials Science and Engineering, National
Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Institute
of Biomedical Engineering and Nanomedicine, National Health Research Institutes (NHRI), Miaoli County 35053, Taiwan
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3
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Fu M, Filippov SK, Williams AC, Khutoryanskiy VV. On the mucoadhesive properties of synthetic and natural polyampholytes. J Colloid Interface Sci 2024; 659:849-858. [PMID: 38218088 DOI: 10.1016/j.jcis.2023.12.176] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/06/2023] [Accepted: 12/29/2023] [Indexed: 01/15/2024]
Abstract
HYPOTHESIS The mucoadhesive characteristics of amphoteric polymers (also known as polyampholytes) can vary and are influenced by factors such as the solution's pH and its relative position against their isoelectric point (pHIEP). Whilst the literature contains numerous reports on mucoadhesive properties of either cationic or anionic polymers, very little is known about these characteristics for polyampholytes EXPERIMENTS: Here, two amphoteric polymers were synthesized by reaction of linear polyethylene imine (l-PEI) with succinic or phthalic anhydride and their mucoadhesive properties were compared to bovine serum albumin (BSA), selected as a natural polyampholyte. Interactions between these polymers and porcine gastric mucin were studied using turbidimetric titration and isothermal titration calorimetry across a wide range of pHs. Model tablets were designed, coated with these polymers and tested to evaluate their adhesion to porcine gastric mucosa at different pHs. Moreover, a retention study using fluorescein isothiocyanate (FITC)-labelled polyampholytes deposited onto mucosal surfaces was also conducted FINDINGS: All these studies indicated the importance of solution pH and its relative position against pHIEP in the mucoadhesive properties of polyampholytes. Both synthetic and natural polyampholytes exhibited strong interactions with mucin and good mucoadhesive properties at pH < pHIEP.
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Affiliation(s)
- Manfei Fu
- School of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6AD, United Kingdom
| | - Sergey K Filippov
- DWI-Leibniz Institute for Interactive Materials e. V., Forckenbeckstraße 50 52074, Aachen, Germany
| | - Adrian C Williams
- School of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6AD, United Kingdom
| | - Vitaliy V Khutoryanskiy
- School of Pharmacy, University of Reading, Whiteknights, Post Office Box 224, Reading RG6 6AD, United Kingdom.
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4
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Huang Z, Moiseev RV, Melides SS, Bae W, Jurewicz I, Khutoryanskiy VV, Keddie JL. Pickering emulsions stabilised with oligoglycine-functionalised nanodiamond as a model system for ocular drug delivery applications. SOFT MATTER 2023; 19:5513-5526. [PMID: 37434584 DOI: 10.1039/d3sm00495c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Oil-in-water emulsions, stabilised with conventional surfactants, are commonly used in eye drops for ocular drug delivery. However, the presence of surfactants can sometimes irritate tissues. Furthermore, conventional emulsions often have poor retention on ocular tissue. Pickering emulsions stabilised with nanoparticles have been gaining attention in recent years for a range of biomedical applications because of their biocompatibility. Here, Pickering emulsions were evaluated for the first time for the confinement of organic components for potential application in ocular drug delivery. For a model system, we used nanodiamond (ND) nanoparticles functionalised with covalently-bonded two-tail (2T) oligoglycine C10(NGly4)2 to make Pickering oil-in-water emulsions, which were stable over three months of storage under neutral pH. We proved the non-toxicity of ND-2T Pickering emulsions, comparable to buffer solution, via an ex vivo bovine corneal permeability and opacity test. The retention of the oil phase in the ND-2T stabilised emulsions on corneal tissue is significantly increased because of the mucoadhesive properties arising from the positively-charged terminal amino groups of 2T. Our formulated emulsions have a surface tension, pH and salt concentration comparable to that of tear fluid. The high retention of the ND-2T-stabilised emulsions on the corneal surface, in combination with their non-toxicity, gives them distinct advantages for ocular drug delivery. The principles of this model system could be applied in the future design of a range of formulations for drug delivery.
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Affiliation(s)
- Zhiwei Huang
- School of Mathematics and Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
| | - Roman V Moiseev
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6DX, UK
- Physicochemical, Ex Vivo and Invertebrates Tests and Analysis Centre (PEVITAC), University of Reading, Whiteknights, Reading, RG6 6DX, UK
| | - Solomon S Melides
- School of Mathematics and Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
| | - Wooli Bae
- School of Mathematics and Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
| | - Izabela Jurewicz
- School of Mathematics and Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
| | - Vitaliy V Khutoryanskiy
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6DX, UK
- Physicochemical, Ex Vivo and Invertebrates Tests and Analysis Centre (PEVITAC), University of Reading, Whiteknights, Reading, RG6 6DX, UK
| | - Joseph L Keddie
- School of Mathematics and Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
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5
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Zhang W, Ma Y, Posey ND, Lueckheide MJ, Prabhu VM, Douglas JF. Combined Simulation and Experimental Study of Polyampholyte Solution Properties: Effects of Charge Ratio, Hydrophobic Groups, and Polymer Concentration. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wengang Zhang
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
- Department of Physics, Wesleyan University, Middletown, Connecticut 06459, United States
| | - Yuanchi Ma
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Nicholas D. Posey
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Michael J. Lueckheide
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Vivek M. Prabhu
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Jack F. Douglas
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
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6
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Mkpuma VO, Moheimani NR, Fischer K, Schulze A, Ennaceri H. Membrane surface zwitterionization for an efficient microalgal harvesting: A review. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Drobota M, Vlad S, Gradinaru LM, Bargan A, Radu I, Butnaru M, Rîmbu CM, Ciobanu RC, Aflori M. Composite Materials Based on Gelatin and Iron Oxide Nanoparticles for MRI Accuracy. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3479. [PMID: 35629506 PMCID: PMC9147670 DOI: 10.3390/ma15103479] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 02/04/2023]
Abstract
The majority of recent studies have focused on obtaining MRI materials for internal use. However, this study focuses on a straightforward method for preparing gelatin-based materials with iron oxide nanoparticles (G-Fe2O3 and G-Fe3O4) for external use. The newly obtained materials must be precisely tuned to match the requirements and usage situation because they will be in close touch with human/animal skin. The biocompatible structures formed by gelatin, tannic acid, and iron oxide nanoparticles were investigated by using FTIR spectroscopy, SEM-EDAX analysis, and contact angle methods. The physico-chemical properties were obtained by using mechanical investigations, dynamic vapor sorption analysis, and bulk magnetic determination. The size and shape of iron oxide nanoparticles dictates the magnetic behavior of the gelatin-based samples. The magnetization curves revealed a typical S-shaped superparamagnetic behavior which is evidence of improved MRI image accuracy. In addition, the MTT assay was used to demonstrate the non-toxicity of the samples, and the antibacterial test confirmed satisfactory findings for all G-based materials.
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Affiliation(s)
- Mioara Drobota
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. GhicaVoda, 41A, 700487 Iasi, Romania; (S.V.); (L.M.G.); (A.B.); (M.B.)
| | - Stelian Vlad
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. GhicaVoda, 41A, 700487 Iasi, Romania; (S.V.); (L.M.G.); (A.B.); (M.B.)
| | - Luiza Madalina Gradinaru
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. GhicaVoda, 41A, 700487 Iasi, Romania; (S.V.); (L.M.G.); (A.B.); (M.B.)
| | - Alexandra Bargan
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. GhicaVoda, 41A, 700487 Iasi, Romania; (S.V.); (L.M.G.); (A.B.); (M.B.)
| | - Iulian Radu
- Department of Surgery, Regional Institute of Oncology, I-st Surgical Oncology, “Grigore T. Popa” University of Medicine and Pharmacy, 700483 Iasi, Romania;
| | - Maria Butnaru
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. GhicaVoda, 41A, 700487 Iasi, Romania; (S.V.); (L.M.G.); (A.B.); (M.B.)
- Department of Biomedical Sciences, “Grigore T. Popa” University of Medicine and Pharmacy, Kogalniceanu Street, 9-13, 700115 Iasi, Romania
| | - Cristina Mihaela Rîmbu
- Department of Public Health, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” University of Life Sciences, Mihail Sadoveanu Alley no. 8, 700490 Iasi, Romania;
| | - Romeo Cristian Ciobanu
- SC All Green SRL, I. Bacalu Street, 5, 700029 Iasi, Romania;
- Electrical Engineering Faculty, “Gheorghe Asachi” Technical University of Iasi, Dimitrie Mangeron Bd., 67, 700050 Iasi, Romania
| | - Magdalena Aflori
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. GhicaVoda, 41A, 700487 Iasi, Romania; (S.V.); (L.M.G.); (A.B.); (M.B.)
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8
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Sharker K, Shigeta Y, Ozoe S, Damsongsang P, Hoven VP, Yusa SI. Upper Critical Solution Temperature Behavior of pH-Responsive Amphoteric Statistical Copolymers in Aqueous Solutions. ACS OMEGA 2021; 6:9153-9163. [PMID: 33842784 PMCID: PMC8028163 DOI: 10.1021/acsomega.1c00351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
Amphoteric statistical equivalent copolymers (P(2VP/NaSS) n ) composed of 2-vinylpyridine (2VP) and anionic sodium p-styrenesulfonate (NaSS) were prepared via reversible addition-fragmentation chain transfer polymerization. The degrees of polymerization (n) were 19 and 95. The monomer reactivity ratio, time conversion profile, and 1H nuclear magnetic resonance diffusion-ordered spectra suggested that the copolymerization of 2VP and NaSS provided statistical or near to random copolymers. P(2VP/NaSS) n exhibited an upper critical solution temperature (UCST) in acidic aqueous solutions on the basis of the charge interactions between the protonated cationic 2VP and anionic NaSS units. With an increase in pH value, the interaction was weakened because of the deprotonation of the 2VP units, thus reducing the UCST. At high [NaCl], the electrostatic interactions among the polymers were weakened because of the screening effect, and again, the UCST was reduced. With an increase in polymer concentration, the intra- and interpolymer interactions increased because of some entanglement, and the UCST consequently increased. Electrostatic interactions among the polymer chains with high molecular weight occurred easier than those among the low-molecular-weight polymer chains, which increased the UCST. The UCST also increased when deuterium oxide was used instead of hydrogen oxide, which was due to the isotopic effect. Hence, the UCST of P(2VP/NaSS) n can be adjusted according to the desired application.
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Affiliation(s)
- Komol
Kanta Sharker
- Department
of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Yusuke Shigeta
- Tosoh
Finechem Co., 4988 Kaisei-cho, Shunan, Yamaguchi 746-0006, Japan
| | - Shinji Ozoe
- Tosoh
Finechem Co., 4988 Kaisei-cho, Shunan, Yamaguchi 746-0006, Japan
| | - Panittha Damsongsang
- Department
of Chemistry, Faculty of Science, Chulalongkorn
University, Phayathai
Road, Pathumwan, Bangkok 10330, Thailand
| | - Voravee P. Hoven
- Department
of Chemistry, Faculty of Science, Chulalongkorn
University, Phayathai
Road, Pathumwan, Bangkok 10330, Thailand
| | - Shin-ichi Yusa
- Department
of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
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9
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Kudaibergenov SE. Synthetic and natural polyampholytes: Structural and behavioral similarity. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sarkyt E. Kudaibergenov
- Institute of Polymer Materials and Technology Atyrau Kazakhstan
- Laboratory of Engineering Profile Satbayev University Almaty Kazakhstan
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10
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Abstract
Abstract
The macromolecular complexes of random, regular, graft, block and dendritic polyampholytes with respect to transition metal ions, surfactants, dyes, polyelectrolytes, and proteins are discussed in this review. Application aspects of macromolecular complexes of polyampholytes in biotechnology, medicine, nanotechnology, catalysis are demonstrated.
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Affiliation(s)
- Sarkyt E. Kudaibergenov
- Institute of Polymer Materials and Technology , Almaty , Kazakhstan
- Laboratory of Engineering Profile, Satbayev University , Almaty , Kazakhstan
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11
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Highly stretchable and thermally healable polyampholyte hydrogels via hydrophobic modification. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04605-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Grinberg VY, Burova TV, Grinberg NV, Alvarez-Lorenzo C, Khokhlov AR. Protein-like energetics of conformational transitions in a polyampholyte hydrogel. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121617] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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13
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Bakhshandeh A, Dos Santos AP, Diehl A, Levin Y. Isothermal adsorption of polyampholytes on charged nanopatterned surfaces. J Chem Phys 2019; 151:084101. [PMID: 31470708 DOI: 10.1063/1.5115404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We investigate the adsorption of neutral polyampholytes on charged nanopatterned surfaces. The surfaces have charged domains but are overall neutral. To perform efficient simulations, we use an approach which combines the explicit form of the interaction potential between the polyampholyte monomers and the surface with a 3d Ewald summation method. We observe that the amount of adsorption and the structure of the adsorbed polyampholytes depend strongly on the surface pattern, the relative size of the surface domains, and the charge distribution along the polyampholyte backbone.
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Affiliation(s)
- Amin Bakhshandeh
- Programa de Pós-Graduação em Física, Instituto de Física e Matemática, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS, Brazil
| | - Alexandre P Dos Santos
- Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Alexandre Diehl
- Departamento de Física, Instituto de Física e Matemática, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS, Brazil
| | - Yan Levin
- Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, CEP 91501-970, Porto Alegre, RS, Brazil
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14
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Stimuli-responsive amphoteric ion exchange polymers bearing carboxylic and amine groups grafted to a cross-linkable silica network. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Blackman LD, Gunatillake PA, Cass P, Locock KES. An introduction to zwitterionic polymer behavior and applications in solution and at surfaces. Chem Soc Rev 2019; 48:757-770. [PMID: 30548039 DOI: 10.1039/c8cs00508g] [Citation(s) in RCA: 221] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Zwitterionic polymers, including polyampholytes and polybetaines, are polymers with both positive and negative charges incorporated into their structure. They are a unique class of smart materials with great potential in a broad range of applications in nanotechnology, biomaterials science, nanomedicine and healthcare, as additives for bulk construction materials and crude oil, and in water remediation. In this Tutorial Review, we aim to highlight their structural diversity and design criteria, and their preparation using modern techniques. Their behavior, both in solution and at surfaces, will be examined under a range of environmental conditions. Finally, we will exemplify how their unique behaviors give rise to specific properties tailored to a selection of their numerous applications.
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Affiliation(s)
- Lewis D Blackman
- Manufacturing Business Unit, Commonwealth Scientific and Industrial Research Organisation, Bayview Avenue, Clayton, VIC 3168, Australia.
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17
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Sponchioni M, Capasso Palmiero U, Manfredini N, Moscatelli D. RAFT copolymerization of oppositely charged monomers and its use to tailor the composition of nonfouling polyampholytes with an UCST behaviour. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00221e] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The RAFT copolymerization of oppositely-charged monomers is studied to optimize the composition of polyampholytes with an UCST behaviour and nonfouling properties.
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Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- 20131 Milano
- Italy
| | - Umberto Capasso Palmiero
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zurich
- Switzerland
| | - Nicolò Manfredini
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zurich
- Switzerland
| | - Davide Moscatelli
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- 20131 Milano
- Italy
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18
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Kudaibergenov SE, Nuraje N. Intra- and Interpolyelectrolyte Complexes of Polyampholytes. Polymers (Basel) 2018; 10:E1146. [PMID: 30961071 PMCID: PMC6403860 DOI: 10.3390/polym10101146] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/08/2018] [Accepted: 10/09/2018] [Indexed: 12/12/2022] Open
Abstract
At present, a large amount of research from experimental and theoretical points of view has been done on interpolyelectrolyte complexes formed by electrostatic attractive forces and/or interpolymer complexes stabilized by hydrogen bonds. By contrast, relatively less attention has been given to polymer⁻polymer complex formation with synthetic polyampholytes (PA). In this review the complexation of polyampholytes with polyelectrolytes (PE) is considered from theoretical and application points of view. Formation of intra- and interpolyelectrolyte complexes of random, regular, block, dendritic polyampholytes are outlined. A separate subsection is devoted to amphoteric behavior of interpolyelectrolyte complexes. The realization of the so-called "isoelectric effect" for interpolyelectrolyte complexes of water-soluble polyampholytes, amphoteric hydrogels and cryogels with respect to surfactants, dye molecules, polyelectrolytes and proteins is demonstrated.
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Affiliation(s)
- Sarkyt E Kudaibergenov
- Laboratory of Functional Polymers, Institute of Polymer Materials and Technology, Almaty 050013, Kazakhstan.
| | - Nurxat Nuraje
- Department of Chemical Engineering, Texas Tech University, Lubbock TX 79409-3121, Box 43121, USA.
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19
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Calabrese V, da Silva MA, Schmitt J, Muñoz-Garcia JC, Gabrielli V, Scott JL, Angulo J, Khimyak YZ, Edler KJ. Surfactant controlled zwitterionic cellulose nanofibril dispersions. SOFT MATTER 2018; 14:7793-7800. [PMID: 30109338 DOI: 10.1039/c8sm00752g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Zwitterionic cellulose nanofibrils (ZCNFs) with an isoelectric point of 3.4 were obtained by grafting glycidyltrimethylammonium chloride onto TEMPO/NaBr/NaOCl-oxidised cellulose nanofibrils. The ZCNF aqueous dispersions were characterized via transmission electron microscopy, rheology and small angle neutron scattering, revealing a fibril-bundle structure with pronounced aggregation at pH 7. Surfactants were successfully employed to tune the stability of the ZCNF dispersions. Upon addition of the anionic surfactant, sodium dodecyl sulfate, the ZCNF dispersion shows individualized fibrils due to electrostatic stabilization. In contrast, upon addition of the cationic species dodecyltrimethylammonium bromide, the dispersion undergoes charge neutralization, leading to more pronounced flocculation.
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Affiliation(s)
- Vincenzo Calabrese
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
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20
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Tao Y, Wang S, Zhang X, Wang Z, Tao Y, Wang X. Synthesis and Properties of Alternating Polypeptoids and Polyampholytes as Protein-Resistant Polymers. Biomacromolecules 2018; 19:936-942. [PMID: 29438615 DOI: 10.1021/acs.biomac.7b01719] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Alternating polypeptoids are particularly appealing because alternating sequence may impart highly ordered structure and special functions, while their simple synthesis still remains a key challenge. We describe that natural amino acid monomers can be polymerized via Ugi reaction in a step-growth fashion as an AA' BB' system, which leads to alternating polypeptoids with molecular weight up to 15 kg/mol. These alternating polypeptoids are thermally responsive and exhibit cloud points ( Tcp) between 27 and 37 °C. Importantly, the marriage of high functionality of amino acids with Ugi reaction also enables the preparation of polypeptoids encoding both protected amino and carboxyl groups in the side chains with alternating arrangement. The cleavage of the protecting groups leads to alternating polyampholytes without any compositional drift. Such alternating polyampholytes not only exhibit high water solubility (>100 mg/mL) but also demonstrate the ability to resist aggregation with proteins. Moreover, the cell viability measurements reveal that these materials have minimal cytotoxicity to HeLa cells. Overall, this study offers us a simple way to prepare a variety of polypeptoids and polyampholytes as new protein-resistant materials for bioapplications.
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Affiliation(s)
- Yue Tao
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Shixue Wang
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China
| | - Xiaojie Zhang
- Department of Polymer Science and Engineering , Hebei University of Technology , Tianjin 300130 , P. R. China
| | | | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China
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21
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Ghosh R, Chatterjee DP, Das S, Mukhopadhyay TK, Datta A, Nandi AK. Influence of Hofmeister I - on Tuning Optoelectronic Properties of Ampholytic Polythiophene by Varying pH and Conjugating with RNA. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12739-12749. [PMID: 29028346 DOI: 10.1021/acs.langmuir.7b03147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A significant tuning of optoelectronic properties of polythiophene (PT) chains due to Hofmeister iodide (I-) ion is demonstrated in ampholytic polythiophene [polythiophene-g-poly{(N,N,N-trimethylamino iodide)ethyl methacrylate-co-methacrylic acid}, APT] at different pHs. In acidic medium, the absorption and emission signals of PT chromophore exhibit appreciable blue shift in the presence of I- as counteranion only. The cooperative effect of undissociated -COOH and quaternary ammonium groups immobilize I- near the apolar PT chain causing threading of grafted chains and hence twisting of the backbone attributing to the blue shift. As medium pH is increased, dethreading of the PT backbone occurs due to ionization of -COOH group, releasing quencher iodide ions from the vicinity of the PT chains resulting in a red shift in absorption and a sharp hike in fluorescence intensity (390 times) for an increase of excitons lifetime. With an increase of pH, morphology changes from a multivesicular aggregate with vacuoles to smaller size vesicles and finally to nanofibrillar network structure. Dethreading is also found when APT interacts with RNA showing a significant hike of fluorescence (22 times) for displacing iodide ions forming a nanofibrillar network morphology. Threading and dethreading also affect the resistance, capacitance, and Warburg impedance values of APT. Molecular dynamics simulation of a model APT chain in a water box supports the threading at lower pH where the iodide ions pose nearer to the PT chain than that at higher pH causing dethreading. So the influence of Hofmeister I- ion is established for tuning the optoelectronic properties of a novel PT based polyampholyte by changing pH or by conjugating with RNA.
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Affiliation(s)
- Radhakanta Ghosh
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Dhruba P Chatterjee
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Sujoy Das
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Titas K Mukhopadhyay
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Ayan Datta
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Arun K Nandi
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
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22
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Tsvetkov N, Lezov A, Vlasov P, Gubarev A, Lezova A, Lebedeva E, Polushina G, Domnina N. Macromolecules of polycarboxybetaine poly(4-N,N-diallyl-N-methylammonio) butanoate: Synthesis and molecular characteristics. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.06.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Resetco C, Frank D, Kaya NU, Badi N, Du Prez F. Precisely Alternating Functionalized Polyampholytes Prepared in a Single Pot from Sustainable Thiolactone Building Blocks. ACS Macro Lett 2017; 6:277-280. [PMID: 35650902 DOI: 10.1021/acsmacrolett.7b00079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polyampholytes with precisely alternating cationic and anionic functional groups were prepared using sustainable thiolactone building blocks in a simple one-pot procedure at room temperature and in water. Ring opening of the N-maleamic acid-functionalized homocysteine thiolactone monomer enabled the introduction of different functional groups into the polymer chain, which contributed to both ionic and hydrogen bonding interactions. The resulting polyampholytes exhibited various isoelectric points while maintaining high solubility in water under different pH and ionic strengths, which expands their potential applications. Finally, it is shown that the upper critical solution temperature (UCST) of these alternating polyampholytes in water/ethanol (30/70% vol) solutions can be tuned as a function of the content of ionic and hydroxyl groups.
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Affiliation(s)
- Cristina Resetco
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
| | - Daniel Frank
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
| | - N. Ugur Kaya
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
- Polymer Science & Technology Department, Graduate School of Science Engineering & Technology, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
| | - Nezha Badi
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
- Institut Charles Sadron (CNRS UPR 22) - University of Strasbourg-ECPM, 23 rue du Loess, 67000 Strasbourg, France
| | - Filip Du Prez
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
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24
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Biomimetic Principles to Develop Blood Compatible Surfaces. Int J Artif Organs 2017; 40:22-30. [DOI: 10.5301/ijao.5000559] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2017] [Indexed: 12/11/2022]
Abstract
Functionalized biomaterial surface patterns capable of resisting nonspecific adsorption while retaining their bioactivity are crucial in the advancement of biomedical technologies, but currently available biomaterials intended for use in whole blood frequently suffer from nonspecific adsorption of proteins and cells, leading to a loss of activity over time. In this review, we address two concepts for the design and modification of blood compatible biomaterial surfaces, zwitterionic modification and surface functionalization with glycans – both of which are inspired by the membrane structure of mammalian cells – and discuss their potential for biomedical applications.
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25
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Ghosh R, Das S, Chatterjee DP, Nandi AK. Surfactant-Triggered Fluorescence Turn "on/off" Behavior of a Polythiophene-graft-Polyampholyte. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8413-8423. [PMID: 27465928 DOI: 10.1021/acs.langmuir.6b01928] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polythiophene-graft-polyampholyte (PTP) is synthesized using N,N-dimethylaminoethyl methacrylate and tert-butyl methacrylate monomers by grafting from polythiophene backbone, followed by hydrolysis. The resulting polymer exhibits aqueous solubility via formation of small-sized miceller aggregates with hydrophobic polythiophene at the center and radiating polyionic side chains (cationic or anionic depending on the pH of the medium) at the outer periphery. The critical micelle concentration of PTP in acidic solution (0.025 mg/mL, pH = 2.7) is determined from fluorescence spectroscopy. PTP exhibits reversible fluorescence on and off response in both acidic and basic medium with the sequential addition of differently charged ionic surfactants, repeatedly. The fluorescence intensity of PTP at pH 2.7 increases with the addition of an anionic surfactant, sodium dodecyl benzenesulfonate (SDBS), due to the self-aggregation forming compound micelles. The fluorescence intensity of these solutions again decreases on addition of a cationic surfactant, cetyltrimethylammonium bromide (CTAB), because of assembling of SDBS with CTAB, thus deassembling the PTP-SDBS aggregates. At pH 9.2, these turn on and turn off responses are also shown by PTP with the sequential addition of cationic surfactant (CTAB) and anionic surfactant (SDBS), respectively. This result shows that PTP has potential for surfactant-induced reversible fluorescence turn on and off using ionic surfactant (SDBS and CTAB) through self-assembling and deassembling of the ionic aggregates. The reversible aggregation and disaggregation process of PTP with the surfactants at both acidic and basic pH is supported from dynamic light scattering and Fourier transform infrared spectroscopy. The morphology of the above systems studied by transmission and scanning electron microscopy also supports the above aggregation and disaggregation process.
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Affiliation(s)
- Radhakanta Ghosh
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Sandip Das
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | | | - Arun K Nandi
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
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26
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Constantinou AP, Elladiou M, Patrickios CS. Regular and Inverse Polyampholyte Hydrogels: A Detailed Comparison. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00538] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Marios Elladiou
- Department of Chemistry University of Cyprus P.O.
Box 20537 1678 Nicosia Cyprus
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27
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Abdilla A, Shi S, Burke NAD, Stöver HDH. Multistimuli responsive ternary polyampholytes: Formation and crosslinking of coacervates. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Allison Abdilla
- Department of Chemistry and Chemical Biology; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Shanna Shi
- Department of Chemistry and Chemical Biology; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Nicholas A. D. Burke
- Department of Chemistry and Chemical Biology; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Harald D. H. Stöver
- Department of Chemistry and Chemical Biology; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
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28
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Zhou G, Luo J, Liu C, Chu L, Ma J, Tang Y, Zeng Z, Luo S. A highly efficient polyampholyte hydrogel sorbent based fixed-bed process for heavy metal removal in actual industrial effluent. WATER RESEARCH 2016; 89:151-60. [PMID: 26650450 DOI: 10.1016/j.watres.2015.11.053] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 11/19/2015] [Accepted: 11/22/2015] [Indexed: 05/12/2023]
Abstract
High sorption capacity, high sorption rate, and fast separation and regeneration for qualified sorbents used in removing heavy metals from wastewater are urgently needed. In this study, a polyampholyte hydrogel was well designed and prepared via a simple radical polymerization procedure. Due to the remarkable mechanical strength, the three-dimensional polyampholyte hydrogel could be fast separated, easily regenerated and highly reused. The sorption capacities were as high as 216.1 mg/g for Pb(II) and 153.8 mg/g for Cd(II) owing to the existence of the large number of active groups. The adsorption could be conducted in a wide pH range of 3-6 and the equilibrium fast reached in 30 min due to its excellent water penetration for highly accessible to metal ions. The fixed-bed column sorption results indicated that the polyampholyte hydrogel was particularly effective in removing Pb(II) and Cd(II) from actual industrial effluent to meet the regulatory requirements. The treatment volumes of actual smelting effluent using one fixed bed column were as high as 684 bed volumes (BV) (7736 mL) for Pb(II) and 200 BV (2262 mL) for Cd(II). Furthermore, the treatment volumes of actual smelting effluent using tandem three columns reached 924 BV (31,351 mL) for Pb(II) and 250 BV (8483 mL) for Cd(II), producing only 4 BV (136 mL) eluent. Compared with the traditional high density slurry (HDS) process with large amount of sludge, the proposed process would be expected to produce only a small amount of sludge. When the treatment volume was controlled below 209.3 BV (7103 mL), all metal ions in the actual industrial effluent could be effectively removed (<0.01 mg/L). This wok develops a highly practical process based on polyampholyte hydrogel sorbents for the removal of heavy metal ions from practical wastewater.
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Affiliation(s)
- Guiyin Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
| | - Jinming Luo
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chengbin Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China.
| | - Lin Chu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
| | - Jianhong Ma
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China
| | - Yanhong Tang
- College of Materials Science and Engineering, Hunan University, Changsha 410082, PR China
| | - Zebing Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
| | - Shenglian Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China.
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29
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Fu J, Schlenoff JB. Driving Forces for Oppositely Charged Polyion Association in Aqueous Solutions: Enthalpic, Entropic, but Not Electrostatic. J Am Chem Soc 2016; 138:980-90. [DOI: 10.1021/jacs.5b11878] [Citation(s) in RCA: 262] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jingcheng Fu
- Department of Chemistry and
Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
| | - Joseph B. Schlenoff
- Department of Chemistry and
Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
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30
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Yang J, Zhang S. Synthesis, characterization and pH sensitivity of polyampholyte containing aromatic rings. RSC Adv 2016. [DOI: 10.1039/c6ra12833e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
pH sensitivity of these polyampholytes containing aromatic rings can be controlled at the fixed degree of substitution.
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Affiliation(s)
- Jingjing Yang
- Key Laboratory of Advanced Functional Materials of Nanjing
- Department of Chemistry
- Nanjing Xiaozhuang University
- Nanjing 211171
- China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- China
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31
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Zhao J, Burke NAD, Stöver HDH. Preparation and study of multi-responsive polyampholyte copolymers of N-(3-aminopropyl)methacrylamide hydrochloride and acrylic acid. RSC Adv 2016. [DOI: 10.1039/c6ra06516c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multi-responsive polyampholytes show LCST and UCST behaviour at different pH values, based on electrostatic and hydrogen bonding interactions.
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Affiliation(s)
- Jing Zhao
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada
| | | | - Harald D. H. Stöver
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada
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32
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Wan J, Tao T, Zhang Y, Liang X, Zhou A, Zhu C. Phosphate adsorption on novel hydrogel beads with interpenetrating network (IPN) structure in aqueous solutions: kinetics, isotherms and regeneration. RSC Adv 2016. [DOI: 10.1039/c5ra25485j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Adsorption has attracted much attention for its effectiveness, low cost and the possibility of regeneration among many phosphorus removal methods.
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Affiliation(s)
- Jun Wan
- School of Environmental Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Tao Tao
- School of Environmental Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Yong Zhang
- School of Civil Engineering & Mechanics
- Huazhong University of Science and Technology
- Wuhan 430074
- China
- Wuhan Urban Drainage Development Co., LTD
| | - Xiangmin Liang
- Armour College of Engineering
- Illinois Institute of Technology
- Chicago
- USA
| | - Aijiao Zhou
- School of Environmental Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Chang Zhu
- School of Environmental Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
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33
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Elschner T, Lüdecke C, Kalden D, Roth M, Löffler B, Jandt KD, Heinze T. Zwitterionic Cellulose Carbamate with Regioselective Substitution Pattern: A Coating Material Possessing Antimicrobial Activity. Macromol Biosci 2015; 16:522-34. [DOI: 10.1002/mabi.201500349] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 10/22/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Thomas Elschner
- Center of Excellence for Polysaccharide Research; Institute of Organic Chemistry and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstraße 10 07743 Jena Germany
| | - Claudia Lüdecke
- Materials Science; Otto Schott Institute of Materials Research; Friedrich Schiller University Jena; Löbdergraben 32 07743 Jena Germany
- Jena Center of Microbial Communication (JCMC); Neugasse 23 07743 Jena Germany
| | - Diana Kalden
- Center of Excellence for Polysaccharide Research; Institute of Organic Chemistry and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstraße 10 07743 Jena Germany
| | - Martin Roth
- Bio Pilot Plant; Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Adolf-Reichwein-Straße 23 07745 Jena Germany
| | - Bettina Löffler
- Institute of Medical Microbiology; Jena University Hospital; Erlanger Allee 101 07747 Jena Germany
| | - Klaus D. Jandt
- Materials Science; Otto Schott Institute of Materials Research; Friedrich Schiller University Jena; Löbdergraben 32 07743 Jena Germany
- Jena Center of Microbial Communication (JCMC); Neugasse 23 07743 Jena Germany
| | - Thomas Heinze
- Center of Excellence for Polysaccharide Research; Institute of Organic Chemistry and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstraße 10 07743 Jena Germany
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34
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Raffa P, Wever DAZ, Picchioni F, Broekhuis AA. Polymeric Surfactants: Synthesis, Properties, and Links to Applications. Chem Rev 2015; 115:8504-63. [PMID: 26182291 DOI: 10.1021/cr500129h] [Citation(s) in RCA: 184] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Patrizio Raffa
- Department of Chemical Engineering-Product Technology, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands.,Dutch Polymer Institute DPI , P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Diego Armando Zakarias Wever
- Department of Chemical Engineering-Product Technology, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands.,Dutch Polymer Institute DPI , P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Francesco Picchioni
- Department of Chemical Engineering-Product Technology, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Antonius A Broekhuis
- Department of Chemical Engineering-Product Technology, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands
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35
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Vasantha VA, Jana S, Lee SSC, Lim CS, Teo SLM, Parthiban A, Vancso JG. Dual hydrophilic and salt responsive schizophrenic block copolymers – synthesis and study of self-assembly behavior. Polym Chem 2015. [DOI: 10.1039/c4py01113a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Block copolymers undergoing conversion from “conventional” to “inverse” micelles upon changing the medium are described.
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Affiliation(s)
- Vivek Arjunan Vasantha
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science
- Technology and Research (A*STAR)
- Singapore 627833
| | - Satyasankar Jana
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science
- Technology and Research (A*STAR)
- Singapore 627833
| | - Serina Siew-Chen Lee
- Tropical Marine Science Institute
- National University of Singapore
- Singapore 119227
| | - Chin-Sing Lim
- Tropical Marine Science Institute
- National University of Singapore
- Singapore 119227
| | - Serena Lay-Ming Teo
- Tropical Marine Science Institute
- National University of Singapore
- Singapore 119227
| | - Anbanandam Parthiban
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science
- Technology and Research (A*STAR)
- Singapore 627833
| | - Julius G. Vancso
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science
- Technology and Research (A*STAR)
- Singapore 627833
- MESA+ Research Institute for Nanotechnology
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36
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Zhang Q, Hoogenboom R. UCST behavior of polyampholytes based on stoichiometric RAFT copolymerization of cationic and anionic monomers. Chem Commun (Camb) 2015; 51:70-3. [DOI: 10.1039/c4cc07930b] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Polyampholytes with controlled equimolar ratio of charges were synthesized by reversible addition–fragmentation chain transfer (RAFT) copolymerization of cationic and anionic monomers and their UCST behavior is reported.
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Affiliation(s)
- Qilu Zhang
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- Ghent University
- 9000 Ghent
- Belgium
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37
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Ekici S, Tetik A. Development of polyampholyte hydrogels based on laponite for electrically stimulated drug release. POLYM INT 2014. [DOI: 10.1002/pi.4816] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sema Ekici
- Canakkale Onsekiz Mart University; Faculty of Sciences and Arts, Chemistry Department, Hydrogel Research Laboratory; Terzioglu Campus 17100 Canakkale Turkey
| | - Ayca Tetik
- Canakkale Onsekiz Mart University; Faculty of Sciences and Arts, Chemistry Department, Hydrogel Research Laboratory; Terzioglu Campus 17100 Canakkale Turkey
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Dubey A, Burke NAD, Stöver HDH. Preparation and characterization of narrow compositional distribution polyampholytes as potential biomaterials: Copolymers ofN-(3-aminopropyl)methacrylamide hydrochloride (APM) and methacrylic acid (MAA). ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27377] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ankita Dubey
- Department of Chemistry and Chemical Biology; McMaster University; 1280 Main Street West Hamilton ON Canada L8S 4M1
| | - Nicholas A. D. Burke
- Department of Chemistry and Chemical Biology; McMaster University; 1280 Main Street West Hamilton ON Canada L8S 4M1
| | - Harald D. H. Stöver
- Department of Chemistry and Chemical Biology; McMaster University; 1280 Main Street West Hamilton ON Canada L8S 4M1
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39
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Elschner T, Heinze T. A promising cellulose-based polyzwitterion with pH-sensitive charges. Beilstein J Org Chem 2014; 10:1549-56. [PMID: 25161710 PMCID: PMC4142972 DOI: 10.3762/bjoc.10.159] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 06/12/2014] [Indexed: 11/23/2022] Open
Abstract
A novel polyzwitterion possessing weak ionic groups could be efficiently synthesized from cellulose phenyl carbonate. Polyanion, polycation, and polyzwitterion are accessible by orthogonal removal of protecting groups. The molecular structure was proofed by FTIR- and NMR spectroscopy. Characteristic properties of the cellulose derivatives, e.g., acid dissociation constants, isoelectric point and complexation, were investigated by potentiometric titration (pH), nephelometry, rheology and dynamic light-scattering. The formation of pH-responsive interpolyelectrolyte complexes applying polydiallyldimethylammonium chloride was preliminary studied.
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Affiliation(s)
- Thomas Elschner
- Center of Excellence for Polysaccharide Research, Institute for Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University of Jena, Humboldtstraße 10, D-07743 Jena, Germany
| | - Thomas Heinze
- Center of Excellence for Polysaccharide Research, Institute for Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University of Jena, Humboldtstraße 10, D-07743 Jena, Germany
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40
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Pafiti KS, Elladiou M, Patrickios CS. “Inverse Polyampholyte” Hydrogels from Double-Cationic Hydrogels: Synthesis by RAFT Polymerization and Characterization. Macromolecules 2014. [DOI: 10.1021/ma500084c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyriaki S. Pafiti
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
| | - Marios Elladiou
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
| | - Costas S. Patrickios
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
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41
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Vasantha VA, Jana S, Parthiban A, Vancso JG. Halophilic polysulfabetaines – synthesis and study of gelation and thermoresponsive behavior. RSC Adv 2014. [DOI: 10.1039/c4ra00928b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polysulfabetaines (PSBs) derived from zwitterionic sulfates (contrary to commonly used polysulfobetaines which are derived from zwitterionic sulfonates) were synthesized for the first time.
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Affiliation(s)
- Vivek Arjunan Vasantha
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island, Singapore 627833
| | - Satyasankar Jana
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island, Singapore 627833
| | - Anbanandam Parthiban
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island, Singapore 627833
| | - Julius G. Vancso
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island, Singapore 627833
- MESA+ Research Institute for Nanotechnology
- Faculty of Science and Technology
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42
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Chen L, Chen T, Fang W, Wen Y, Lin S, Lin J, Cai C. Synthesis and pH-Responsive “Schizophrenic” Aggregation of a Linear-Dendron-Like Polyampholyte Based on Oppositely Charged Polypeptides. Biomacromolecules 2013; 14:4320-30. [DOI: 10.1021/bm401215w] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lili Chen
- Shanghai Key Laboratory of
Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials
of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Tao Chen
- Shanghai Key Laboratory of
Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials
of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Wenxiang Fang
- Shanghai Key Laboratory of
Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials
of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Ying Wen
- Shanghai Key Laboratory of
Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials
of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Shaoliang Lin
- Shanghai Key Laboratory of
Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials
of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Jiaping Lin
- Shanghai Key Laboratory of
Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials
of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Chunhua Cai
- Shanghai Key Laboratory of
Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials
of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
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43
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Xiao H, Hu J, Jin S, Li RH. Synthesis and Solution Properties of Zwitterionic Copolymer of Acrylamide with 3-[(2-Acrylamido)dimethylammonio]propanesulfonate. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.9.2616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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44
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Lekniute E, Peciulyte L, Klimaviciute R, Bendoraitiene J, Zemaitaitis A. Structural characteristics and flocculation properties of amphoteric starch. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.02.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Jana S, Vasantha VA, Stubbs LP, Parthiban A, Vancso JG. Vinylimidazole-based asymmetric ion pair comonomers: Synthesis, polymerization studies and formation of ionically crosslinked PMMA. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26720] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Satyasankar Jana
- Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR); 1 Pesek Road Jurong Island Singapore 627833 Singapore
| | - Vivek Arjunan Vasantha
- Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR); 1 Pesek Road Jurong Island Singapore 627833 Singapore
| | - Ludger Paul Stubbs
- Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR); 1 Pesek Road Jurong Island Singapore 627833 Singapore
| | - Anbanandam Parthiban
- Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR); 1 Pesek Road Jurong Island Singapore 627833 Singapore
| | - Julius G. Vancso
- Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR); 1 Pesek Road Jurong Island Singapore 627833 Singapore
- MESA+ Research Institute for Nanotechnology, Faculty of Science and Technology, University of Twente; P.O. Box 217, 7500 AE Enschede The Netherlands
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Grigoras AG, Racovita S, Vasiliu S, Nistor MT, Dunca S, Barboiu V, Grigoras VC. Dilute solution properties of some polycarboxybetaines with antibacterial activity. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-0008-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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47
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Xiao H, Tao R, Cui W, Zhang S, Li RH. Solution properties of a novel ampholytic polyphenylene sulfide. J Appl Polym Sci 2012. [DOI: 10.1002/app.36809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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48
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Sun JT, Yu ZQ, Hong CY, Pan CY. Biocompatible Zwitterionic Sulfobetaine Copolymer-Coated Mesoporous Silica Nanoparticles for Temperature-Responsive Drug Release. Macromol Rapid Commun 2012; 33:811-8. [DOI: 10.1002/marc.201100876] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 02/02/2012] [Indexed: 11/11/2022]
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49
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Peng XW, Ren JL, Zhong LX, Sun RC. Synthesis and characterization of amphoteric xylan-type hemicelluloses by microwave irradiation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:1695-1702. [PMID: 22280071 DOI: 10.1021/jf204522k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this study, a novel amphoteric macromolecule was synthesized by sequential incorporation of carboxymethyl and quaternary ammonium groups into the backbone of xylan-type hemicelluloses under microwave irradiation. The reaction parameters such as the molar ratio of reagent (NaOH or 3-epoxypropyltrimethylammonium chloride)/anhydroxylose unit in hemicelluloses, the temperature, and the reaction time were investigated to optimize the reaction condition. The maximum degrees of substitution (DS) of carboxymethyl and quaternary ammonium groups under the optimum reaction condition were 0.90 and 0.52, respectively, exhibiting a higher efficiency as compared to the conventional heating method. Moreover, the thermal stability and weight-average molecular weight of amphoteric hemicellulosic derivatives decreased as compared to the native hemicelluloses. The viscosity, elastic modulus, and loss modulus of the amphoteric biomacromolecules increased with the increasing DS of quaternary ammonium groups in aqueous solution due to stronger electrostatic attraction. This study provides an efficient and rapid method to prepare amphoteric biomacromolecules.
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Affiliation(s)
- Xin-Wen Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology , Guangzhou, China
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50
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Zou J, Zhang S, Shrestha R, Seetho K, Donley CL, Wooley KL. pH-Triggered reversible morphological inversion of orthogonally-addressable poly(3-acrylamidophenylboronic acid)-block-poly(acrylamidoethylamine) micelles and their shell crosslinked nanoparticles. Polym Chem 2012; 3:3146-3156. [PMID: 23185105 PMCID: PMC3505036 DOI: 10.1039/c2py20324c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Functionally-responsive amphiphilic core-shell nanoscopic objects, capable of either complete or partial inversion processes, were produced by the supramolecular assembly of pH-responsive block copolymers, without or with covalent crosslinking of the shell layer, respectively. A new type of well-defined, dual-functionalized boronic acid- and amino-based diblock copolymer poly(3-acrylamidophenylboronic acid)(30)-block-poly(acrylamidoethylamine)(25) (PAPBA(30)-b-PAEA(25)) was synthesized by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization and then assembled into cationic micelles in aqueous solution at pH 5.5. The micelles were further cross-linked throughout the shell domain comprised of poly(acrylamidoethylamine) by reaction with a bis-activated ester of 4,15-dioxo-8,11-dioxa-5,14-diazaoctadecane-1,18-dioic acid, upon increase of the pH to 7, to different cross-linking densities (2%, 5% and 10%), forming well-defined shell cross-linked nanoparticles (SCKs) with hydrodynamic diameters of ca. 50 nm. These smart micelles and SCKs presented switchable cationic, zwitterionic and anionic properties, and existed as stable nanoparticles with high positive surface charge at low pH (pH = 2, zeta potential ~ +40 mV) and strong negative surface charge at high pH (pH = 12, zeta potential ~ -35 mV). (1)H NMR spectroscopy, X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS), transmission electron microscopy (TEM), atomic force microscopy (AFM), and zeta potential, were used to characterize the chemical compositions, particle sizes, morphologies and surface charges. Precipitation occurred near the isoelectric points (IEP) of the polymer/particle solutions, and the IEP values could be tuned by changing the shell cross-linking density. The block copolymer micelles were capable of full reversible morphological inversion as a function of pH, by orthogonal protonation of the PAEA and hydroxide association with the PAPBA units, whereas the SCKs underwent only reptation of the PAPBA chain segments through the crosslinked shell of PAEA as the pH was elevated. Further, these nanomaterials also showed D-glucose-responsive properties.
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Affiliation(s)
- Jiong Zou
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, (USA)
| | - Shiyi Zhang
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, (USA)
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, (USA)
| | - Ritu Shrestha
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, (USA)
| | - Kellie Seetho
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, (USA)
| | - Carrie L. Donley
- Chapel Hill Analytical and Nanofabrication Laboratory Institute for Advanced Materials, University of North Carolina 243 Chapman Hall, Chapel Hill, North Carolina, 27599, (USA)
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, (USA)
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