1
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Varghese S, Chaudhary JP, Thareja P, Ghoroi C. Newly developed nano-biocomposite embedded hydrogel to enhance drug loading and modulated release of anti-inflammatory drug. Pharm Dev Technol 2023; 28:299-308. [PMID: 36940227 DOI: 10.1080/10837450.2023.2193254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
A newly developed iron-based nano-biocomposite (nano Fe-CNB) impregnated alginate formulation (CA) is proposed to improve drug loading and exhibit pH-responsive behavior of model anti-inflammatory drug-ibuprofen for controlled release applications. The proposed formulation is investigated with conventional β-CD addition in CA. The nano Fe-CNB-based formulations with and without β-CD, (Fe-CNB β-CD CA and Fe-CNB CA) are compared with only CA and β-CD incorporated CA formulations. The results indicate the incorporation of nano-biocomposite or β-CD into CA enhances the drug loading (>40%). However, pH-responsive controlled release behavior is observed for nano Fe-CNB based formulations only. The release studies from Fe-CNB β-CD CA indicate ∼ 45% release in stomach pH (1.2) within 2 h. In contrast, Fe-CNB CA shows ∼20% release only in stomach pH and improved release (∼49%) at colon pH (7.4). The rheology and swelling studies indicate Fe-CNB CA remains intact in stomach pH with a minimal drug release, but it disintegrates at colon pH due to charge reversal behavior of nano-biocomposite and ionization of polymeric chains. Thus, Fe-CNB CA formulation is found to be a potential candidate for targeting colon delivery, inflammatory bowel disease, and post-operative conditions.
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Affiliation(s)
- Sophia Varghese
- Chemical Engineering, Indian Institute of Technology Gandhinagar, Gujarat, India
| | | | - Prachi Thareja
- Chemical Engineering, Indian Institute of Technology Gandhinagar, Gujarat, India
| | - Chinmay Ghoroi
- Chemical Engineering, Indian Institute of Technology Gandhinagar, Gujarat, India
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2
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Mei B, Lin TW, Sheridan GS, Evans CM, Sing CE, Schweizer KS. How Segmental Dynamics and Mesh Confinement Determine the Selective Diffusivity of Molecules in Cross-Linked Dense Polymer Networks. ACS CENTRAL SCIENCE 2023; 9:508-518. [PMID: 36968535 PMCID: PMC10037493 DOI: 10.1021/acscentsci.2c01373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Indexed: 06/18/2023]
Abstract
The diffusion of molecules ("penetrants") of variable size, shape, and chemistry through dense cross-linked polymer networks is a fundamental scientific problem broadly relevant in materials, polymer, physical, and biological chemistry. Relevant applications include separation membranes, barrier materials, drug delivery, and nanofiltration. A major open question is the relationship between transport, thermodynamic state, and penetrant and polymer chemical structure. Here we combine experiment, simulation, and theory to unravel these competing effects on penetrant transport in rubbery and supercooled polymer permanent networks over a wide range of cross-link densities, size ratios, and temperatures. The crucial importance of the coupling of local penetrant hopping to polymer structural relaxation and the secondary importance of mesh confinement effects are established. Network cross-links strongly slow down nm-scale polymer relaxation, which greatly retards the activated penetrant diffusion. The demonstrated good agreement between experiment, simulation, and theory provides strong support for the size ratio (penetrant diameter to the polymer Kuhn length) as a key variable and the usefulness of coarse-grained simulation and theoretical models that average over Angstrom scale structure. The developed theory provides an understanding of the physical processes underlying the behaviors observed in experiment and simulation and suggests new strategies for enhancing selective polymer membrane design.
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Affiliation(s)
- Baicheng Mei
- Department
of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Materials
Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
| | - Tsai-Wei Lin
- Department
of Chemical & Biomolecular Engineering, University of Illinois, Urbana, Illinois 61801, United States
- Materials
Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
| | - Grant S. Sheridan
- Department
of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Materials
Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
| | - Christopher M. Evans
- Department
of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Department
of Chemical & Biomolecular Engineering, University of Illinois, Urbana, Illinois 61801, United States
- Materials
Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
| | - Charles E. Sing
- Department
of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Department
of Chemical & Biomolecular Engineering, University of Illinois, Urbana, Illinois 61801, United States
- Materials
Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
| | - Kenneth S. Schweizer
- Department
of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Department
of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Department
of Chemical & Biomolecular Engineering, University of Illinois, Urbana, Illinois 61801, United States
- Materials
Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
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3
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Water Desalination Using Polyelectrolyte Hydrogel: Gibbs Ensemble Modeling. Gels 2022; 8:gels8100656. [PMID: 36286157 PMCID: PMC9601819 DOI: 10.3390/gels8100656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/16/2022] [Accepted: 10/10/2022] [Indexed: 11/04/2022] Open
Abstract
Polyelectrolyte hydrogels can absorb a large amount of water across an osmotic membrane as a result of their swelling pressure. On the other hand, the insoluble cross-linked hydrogel network enables dewatering under the influence of external (thermal and/or mechanical) stimuli. Moreover, from a thermodynamic perspective, a polyelectrolyte hydrogel is already an osmotic membrane. These properties designate hydrogels as excellent candidates for use in desalination, at the same time avoiding the use of expensive membranes. In this article, we present our recent theoretical study of polyelectrolyte hydrogel usage for water desalination. Employing a coarse-grained model and the Gibbs ensemble, we modeled the thermodynamic equilibrium between the coexisting gel phase and the supernate aqueous salt solution phase. We performed a sequence of step-by-step hydrogel swellings and compressions in open and closed systems, i.e., in equilibrium with a large and with a comparably small reservoir of aqueous solution. The swelling in an open system removes ions from the large reservoir, whereas the compression in a closed system decreases the salt concentration in the small reservoir. We modeled this stepwise process of continuous decrease of water salinity from seawater up to freshwater concentrations and estimated the energy cost of the process to be comparable to that of reverse osmosis.
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4
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Mei B, Sheridan GS, Evans CM, Schweizer KS. Elucidation of the physical factors that control activated transport of penetrants in chemically complex glass-forming liquids. Proc Natl Acad Sci U S A 2022; 119:e2210094119. [PMID: 36194629 PMCID: PMC9565165 DOI: 10.1073/pnas.2210094119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 09/13/2022] [Indexed: 11/18/2022] Open
Abstract
Understanding the activated transport of penetrant or tracer atoms and molecules in condensed phases is a challenging problem in chemistry, materials science, physics, and biophysics. Many angstrom- and nanometer-scale features enter due to the highly variable shape, size, interaction, and conformational flexibility of the penetrant and matrix species, leading to a dramatic diversity of penetrant dynamics. Based on a minimalist model of a spherical penetrant in equilibrated dense matrices of hard spheres, a recent microscopic theory that relates hopping transport to local structure has predicted a novel correlation between penetrant diffusivity and the matrix thermodynamic dimensionless compressibility, S0(T) (which also quantifies the amplitude of long wavelength density fluctuations), as a consequence of a fundamental statistical mechanical relationship between structure and thermodynamics. Moreover, the penetrant activation barrier is predicted to have a factorized/multiplicative form, scaling as the product of an inverse power law of S0(T) and a linear/logarithmic function of the penetrant-to-matrix size ratio. This implies an enormous reduction in chemical complexity that is verified based solely on experimental data for diverse classes of chemically complex penetrants dissolved in molecular and polymeric liquids over a wide range of temperatures down to the kinetic glass transition. The predicted corollary that the penetrant diffusion constant decreases exponentially with inverse temperature raised to an exponent determined solely by how S0(T) decreases with cooling is also verified experimentally. Our findings are relevant to fundamental questions in glassy dynamics, self-averaging of angstrom-scale chemical features, and applications such as membrane separations, barrier coatings, drug delivery, and self-healing.
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Affiliation(s)
- Baicheng Mei
- Department of Materials Science, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Grant S. Sheridan
- Department of Materials Science, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Christopher M. Evans
- Department of Materials Science, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Kenneth S. Schweizer
- Department of Materials Science, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801
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5
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Paulin JA, Lopez-Aguilar JE, Fouconnier B, Vargas RO, Lopez-Serrano F. Revisiting the Flory–Rehner equation: taking a closer look at the Flory–Huggins interaction parameter and its functionality with temperature and concentration with NIPA as a case example. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03836-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Jangizehi A, Seiffert S. Salt Partitioning in Cationic Thermo‐Responsive Hydrogels for Model‐Seawater Desalination. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amir Jangizehi
- Department of Chemistry Johannes Gutenberg University of Mainz D‐55128 Mainz Germany
| | - Sebastian Seiffert
- Department of Chemistry Johannes Gutenberg University of Mainz D‐55128 Mainz Germany
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7
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Xu X, Bizmark N, Christie KSS, Datta SS, Ren ZJ, Priestley RD. Thermoresponsive Polymers for Water Treatment and Collection. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c01502] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Xu Z, Wu K, Luo H, Wang Q, Zhang TC, Chen X, Rong H, Fang Q. Electro‐responsive
semi‐IPN
hydrogel with enhanced responsive property for forward osmosis desalination. J Appl Polym Sci 2022. [DOI: 10.1002/app.51650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Zirong Xu
- School of Civil Engineering Guangzhou University Guangzhou China
| | - Kelin Wu
- School of Civil Engineering Guangzhou University Guangzhou China
| | - Huayong Luo
- School of Civil Engineering Guangzhou University Guangzhou China
| | - Qin Wang
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan China
| | - Tian C. Zhang
- Civil Engineering Department University of Nebraska–Lincoln Omaha Nebraska USA
| | - Xiaobing Chen
- School of Civil Engineering Guangzhou University Guangzhou China
| | - Hongwei Rong
- School of Civil Engineering Guangzhou University Guangzhou China
| | - Qian Fang
- School of Civil Engineering Guangzhou University Guangzhou China
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9
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Mashile PP, Nomngongo PN. Magnetic Cellulose-Chitosan Nanocomposite for Simultaneous Removal of Emerging Contaminants: Adsorption Kinetics and Equilibrium Studies. Gels 2021; 7:gels7040190. [PMID: 34842666 PMCID: PMC8628732 DOI: 10.3390/gels7040190] [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: 09/26/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
The presence of pharmaceuticals in water systems threatens both terrestrial and aquatic life across the globe. Some of such contaminants are β-blockers and anticonvulsants, which have been constantly detected in different water systems. Various methodologies have been introduced for the removal of these emerging pollutants from different waters. Among them, adsorption using nanomaterials has proved to be an efficient and cost-effective process for the removal of pharmaceuticals from contaminated water. In this this study, a firsthand/time approach applying a recyclable magnetic cellulose-chitosan nanocomposite for effective simultaneous removal of two β-blockers (atenolol (ATN)) and propranolol (PRP) and an anticonvulsant (carbamazepine (CBZ)) is reported. A detailed characterization of the eco-friendly, biocompatible cellulose-chitosan nanocomposite with magnetic properties was performed at various rates of synthesis using X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and Fourier transform infrared (FTIR) spectroscopy. A N2c adsorption-desorption test showed that the prepared nanocomposite is mesoporous, with a BET area of 112 m2 g-1. The BET isotherms results showed that the magnetic cellulose-chitosan nanocomposite has a pore size of 24.1 nm. The adsorption equilibrium of PRP and CBZ fitted with the Langmuir isotherm was consistent with the highest coefficient of determination (R2 = 0.9945) and (R2 = 0.9942), respectively, while the Sips model provided a better fit for ATN, with a coefficient of determination R2 = 0.9956. The adsorption rate was accompanied by a pseudo-second-order kinetics. Moreover, the swelling test showed that up to 100 percent swelling of the magnetic cellulose-chitosan nanocomposite was achieved.
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Affiliation(s)
- Phodiso Prudence Mashile
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa;
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
| | - Philiswa Nosizo Nomngongo
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa;
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
- Correspondence:
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10
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Carmona P, Tasici AM, Sande SA, Knudsen KD, Nyström B. Glyceraldehyde as an Efficient Chemical Crosslinker Agent for the Formation of Chitosan Hydrogels. Gels 2021; 7:186. [PMID: 34842656 PMCID: PMC8628775 DOI: 10.3390/gels7040186] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/20/2021] [Accepted: 10/26/2021] [Indexed: 12/05/2022] Open
Abstract
The rheological changes that occur during the chemical gelation of semidilute solutions of chitosan in the presence of the low-toxicity agent glyceraldehyde (GCA) are presented and discussed in detail. The entanglement concentration for chitosan solutions was found to be approximately 0.2 wt.% and the rheological experiments were carried out on 1 wt.% chitosan solutions with various amounts of GCA at different temperatures (25 °C and 40 °C) and pH values (4.8 and 5.8). High crosslinker concentration, as well as elevated temperature and pH close to the pKa value (pH ≈ 6.3-7) of chitosan are three parameters that all accelerate the gelation process. These conditions also promote a faster solid-like response of the gel-network in the post-gel region after long curing times. The mesh size of the gel-network after a very long (18 h) curing time was found to contract with increasing level of crosslinker addition and elevated temperature. The gelation of chitosan in the presence of other chemical crosslinker agents (glutaraldehyde and genipin) is discussed and a comparison with GCA is made. Small angle neutron scattering (SANS) results reveal structural changes between chitosan solutions, incipient gels, and mature gels.
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Affiliation(s)
- Pierre Carmona
- Department of Chemistry, University of Oslo, N-0315 Oslo, Norway;
- Department of Physics, Division of Nano-and BioPhysics, Chalmers University of Technology, Fysikgränd 3, 412 96 Gothenburg, Sweden
| | - Anca M. Tasici
- Department of Pharmacy, Section for Pharmaceutics and Social Pharmacy, University of Oslo, N-0316 Oslo, Norway; (A.M.T.); (S.A.S.)
| | - Sverre A. Sande
- Department of Pharmacy, Section for Pharmaceutics and Social Pharmacy, University of Oslo, N-0316 Oslo, Norway; (A.M.T.); (S.A.S.)
| | | | - Bo Nyström
- Department of Chemistry, University of Oslo, N-0315 Oslo, Norway;
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11
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Zang L, Finnerty C, Zheng S, Conway K, Sun L, Ma J, Mi B. Interfacial solar vapor generation for desalination and brine treatment: Evaluating current strategies of solving scaling. WATER RESEARCH 2021; 198:117135. [PMID: 33895587 DOI: 10.1016/j.watres.2021.117135] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Interfacial solar vapor generation, an efficient, sustainable, and low-cost method for producing clean water, has attracted great interest for application in solar desalination and wastewater treatment. Although recent studies indicated significant enhancement of overall performance by developing photothermal materials and constructing different dimensional systems, stable evaporation performance and long-term operation of the evaporator are hindered by severe scaling issues. In this critical review, we present the latest strategies in reducing salt accumulation on the evaporator for solar desalination and brine treatment. We first demonstrate the consequences of salt accumulation, and then discuss various self-cleaning methods based on bio-inspired concepts and other strategies such as physical cleaning, ion rejection and exchange, fast ion diffusion, and controlled crystallization, etc. Importantly, we discuss and address the rational design of the evaporator via establishing a relationship model between its porosity, thickness, and thermal conductivity. Lastly, we evaluate salt-resistance strategies, evaporation performance, and possibilities of real application in different evaporation systems with scaling-resistant abilities.
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Affiliation(s)
- Linlin Zang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Casey Finnerty
- Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Sunxiang Zheng
- Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Kelly Conway
- Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Liguo Sun
- School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Baoxia Mi
- Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States.
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12
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Awasthi S, Gaur JK, Pandey SK, Bobji MS, Srivastava C. High-Strength, Strongly Bonded Nanocomposite Hydrogels for Cartilage Repair. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24505-24523. [PMID: 34027653 DOI: 10.1021/acsami.1c05394] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Polyacrylamide-based hydrogels are widely used as potential candidates for cartilage replacement. However, their bioapplicability is sternly hampered due to their limited mechanical strength and puncture resistance. In the present work, the strength of polyacrylamide (PAM) hydrogels was increased using titanium oxide (TiO2) and carbon nanotubes (CNTs) separately and a combination of TiO2 with CNTs in a PAM matrix, which was interlinked by the bonding between nanoparticles and polymers with the deployment of density functional theory (DFT) approach. The synergistic effect and strong interfacial bonding of TiO2 and CNT nanoparticles with PAM are attributed to high compressive strength, elastic modulus (>0.43 and 2.340 MPa, respectively), and puncture resistance (estimated using the needle insertion test) for the PAM-TiO2-CNT hydrogel. The PAM-TiO2-CNT composite hydrogel revealed a significant self-healing phenomenon along with a sign toward the bioactivity and cytocompatibility by forming the apatite crystals in simulated body fluid as well as showing a cell viability of ∼99%, respectively. Furthermore, for new insights on interfacial bonding and structural and electronic features involved in the hydrogels, DFT was used. The PAM-TiO2-CNT composite model, constructed by two interfaces (PAM-TiO2 and PAM-CNT), was stabilized by H-bonding and van der Waals-type interactions. Employing the NCI plot, HOMO-LUMO gap, and natural population analysis tools, the PAM-TiO2-CNT composite has been found to be most stable. Therefore, the prepared polyacrylamide hydrogels in combination with the TiO2 and CNT can be a remarkable nanocomposite hydrogel for cartilage repair applications.
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Affiliation(s)
- Shikha Awasthi
- Department of Materials Engineering, Indian Institute of Science Bangalore, Bangalore 560012, India
| | - Jeet Kumar Gaur
- Department of Mechanical Engineering, Indian Institute of Science Bangalore, Bangalore 560012, India
| | - Sarvesh Kumar Pandey
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore, Bangalore 560012, India
| | - Musuvathi S Bobji
- Department of Mechanical Engineering, Indian Institute of Science Bangalore, Bangalore 560012, India
| | - Chandan Srivastava
- Department of Materials Engineering, Indian Institute of Science Bangalore, Bangalore 560012, India
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13
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Jangizehi A, Seiffert S. Salt partitioning in ionized, thermo-responsive hydrogels: perspective to water desalination. J Chem Phys 2021; 154:144902. [PMID: 33858157 DOI: 10.1063/5.0044376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Charged hydrogels are capable of swelling in aqueous salt solutions, whereby part of the salt ions is repelled due to the presence of fixed charged groups inside the hydrogel. This effect creates a concentration gradient between the absorbed solution and the surrounding fluid known as salt partitioning, offering a potential for these materials to be employed to desalinate saltwater. If the charged hydrogels are thermo-sensitive as well, then the purer, absorbed solution can be recovered by shrinking the hydrogels upon temperature change. To tailor that potential in water-purification and desalination applications, the main parameters influencing the salt partitioning, the deswelling of the hydrogels, and the recovery of water must be understood. In this paper, we analyze these factors based on equations derived from the Donnan theory. In addition, hydrogels composed of N-isopropyl acrylamide and acrylic acid are synthesized, and their salt rejection efficiency in a model desalination experiment is studied. A comparison of the experimental and the theoretical results demonstrates that the charge density of the hydrogels at their equilibrium swelling and the degree of water recovery are two parameters controlling the salt rejection efficiency. These parameters are individually controlled by the content of the ionic groups and the degree of cross-linking of the gel polymer network. In addition, the prediction of the theory and the experimental results demonstrate that the salt rejection efficiency can be significantly improved if a second water recovery step is performed by a secondary increase in the temperature in the deswelling process.
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Affiliation(s)
- Amir Jangizehi
- Department of Chemistry, Johannes Gutenberg University Mainz, D-55128 Mainz, Germany
| | - Sebastian Seiffert
- Department of Chemistry, Johannes Gutenberg University Mainz, D-55128 Mainz, Germany
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14
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Kanduč M, Kim WK, Roa R, Dzubiella J. How the Shape and Chemistry of Molecular Penetrants Control Responsive Hydrogel Permeability. ACS NANO 2021; 15:614-624. [PMID: 33382598 PMCID: PMC7844830 DOI: 10.1021/acsnano.0c06319] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
The permeability of hydrogels for the selective transport of molecular penetrants (drugs, toxins, reactants, etc.) is a central property in the design of soft functional materials, for instance in biomedical, pharmaceutical, and nanocatalysis applications. However, the permeation of dense and hydrated polymer membranes is a complex multifaceted molecular-level phenomenon, and our understanding of the underlying physicochemical principles is still very limited. Here, we uncover the molecular principles of permeability and selectivity in hydrogel permeation. We combine the solution-diffusion model for permeability with comprehensive atomistic simulations of molecules of various shapes and polarities in a responsive hydrogel in different hydration states. We find in particular that dense collapsed states are extremely selective, owing to a delicate balance between the partitioning and diffusivity of the penetrants. These properties are sensitively tuned by the penetrant size, shape, and chemistry, leading to vast cancellation effects, which nontrivially contribute to the permeability. The gained insights enable us to formulate semiempirical rules to quantify and extrapolate the permeability categorized by classes of molecules. They can be used as approximate guiding ("rule-of-thumb") principles to optimize penetrant or membrane physicochemical properties for a desired permeability and membrane functionality.
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Affiliation(s)
- Matej Kanduč
- Jožef
Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Won Kyu Kim
- Korea
Institute for Advanced Study, 85 Hoegiro, Seoul 02455, Republic of Korea
| | - Rafael Roa
- Departamento
de Física Aplicada I, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Joachim Dzubiella
- Applied
Theoretical Physics−Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder Strasse 3, D-79104 Freiburg, Germany
- Research
Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
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15
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Chen Z, Lin Y, Zheng G, Yang Y, Zhang Y, Zheng S, Li J, Li J, Ren L, Jiang L. Programmable Transformation and Controllable Locomotion of Magnetoactive Soft Materials with 3D-Patterned Magnetization. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58179-58190. [PMID: 33320521 DOI: 10.1021/acsami.0c15406] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Magnetoactive soft material (MASM) is distinguished for multifunctional shape manipulations under magnetic actuation, thereby holding a great promise in soft robotics, actuators, electronics, and metamaterials. However, the current research of MASM with continuum hard-magnetic profiles focuses little on the transformation mechanism, high dimensional shape transformation, and multistable locomotion. Herein, we developed a systematic methodology for programmable transformation and controllable locomotion of MASM with 3D-patterned continuum magnetization. An iterative computational model based on the equilibrium between magnetic torque and deformation-induced elastic torque was developed for precise prediction of MASM transformation. Multidimensional and complex shape manipulation ability of MASM was demonstrated by magnetically actuated transformations, including 1D to 2D, 2D to 3D, and 3D to 4D transformations of solid MASM, 2D to 3D pattern transformation of MASM-based elastin-like mesh, and 3D to 4D transformation of MASM-based cuboidal lattice. Multistable and controllable locomotion of MASM was verified by multimodal locomotion behaviors of a scallop-inspired robot for wall climbing in a dry frame and drug delivery in wet stomach, including roll, open, and close under self-locked and unlocked states.
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Affiliation(s)
- Zhipeng Chen
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Yinyan Lin
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Guizhou Zheng
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Yawen Yang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Yuanxi Zhang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Siqi Zheng
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Jingwei Li
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Jiwei Li
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Lei Ren
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
| | - Lelun Jiang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275 PR China
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16
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Salehi AA, Ghannadi-Maragheh M, Torab-Mostaedi M, Torkaman R, Asadollahzadeh M. Hydrogel materials as an emerging platform for desalination and the production of purified water. SEPARATION & PURIFICATION REVIEWS 2020. [DOI: 10.1080/15422119.2020.1789659] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Ali Akbar Salehi
- Department of Energy Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad Ghannadi-Maragheh
- Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
| | - Meisam Torab-Mostaedi
- Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
| | - Rezvan Torkaman
- Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
| | - Mehdi Asadollahzadeh
- Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
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17
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Luo H, Wu K, Wang Q, Zhang TC, Lu H, Rong H, Fang Q. Forward osmosis with electro-responsive P(AMPS-co-AM) hydrogels as draw agents for desalination. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117406] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Arens L, Barther D, Landsgesell J, Holm C, Wilhelm M. Poly(sodium acrylate) hydrogels: synthesis of various network architectures, local molecular dynamics, salt partitioning, desalination and simulation. SOFT MATTER 2019; 15:9949-9964. [PMID: 31750503 DOI: 10.1039/c9sm01468c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Various poly(sodium acrylate) hydrogels with different architectures, such as single networks, interpenetrating double networks and surface crosslinked hydrogels, are synthesized with a systematic change in their degree of crosslinking. The influence of these 3D structures on the absorbency of aqueous NaCl solutions is investigated. The local polymer mobility in water is probed in the form of transverse (T2) 1H-relaxation at a low field, which allowed confirming the structural aspects of the studied network topologies. Salt partitioning between the gel and the surrounding solution phase in NaCl solutions with an initial salt concentration of c0 = 0.017-0.60 mol L-1 (≙1-35 g L-1) is investigated. The data are compared with an idealized mean-field Donnan model, which fit the experimental findings only under the assumption of a drastically reduced effective charge density of feff ≈ 25 mol% independent of the hydrogel used. The unequal salt distribution allows desalination of salt water by applying an external pressure to a swollen hydrogel to recover its water which has a lower salinity. The specific energy needed to desalinate 1 m3 was estimated to be 6-18 kW h m-3. This value decreases with a lower degree of swelling independent of the network topology. Besides the experiments, simulations based on a Poisson-Boltzmann mean-field model and MD simulations are performed to determine the degree of swelling and salt partitioning as a function of c0 for different hydrogels. Both simulations describe qualitatively the experimental data, where deviations can be ascribed to model simplifications and the imperfect structure of the hydrogels synthesized via free radical polymerization.
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Affiliation(s)
- Lukas Arens
- Karlsruhe Institute of Technology (KIT), Institute for Technical Chemistry and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany.
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19
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Kanduč M, Kim WK, Roa R, Dzubiella J. Aqueous Nanoclusters Govern Ion Partitioning in Dense Polymer Membranes. ACS NANO 2019; 13:11224-11234. [PMID: 31553560 PMCID: PMC6812065 DOI: 10.1021/acsnano.9b04279] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 09/25/2019] [Indexed: 05/28/2023]
Abstract
The uptake and sorption of charged molecules by responsive polymer membranes and hydrogels in aqueous solutions is of key importance for the development of soft functional materials. Here, we investigate the partitioning of simple monatomic (Na+, K+, Cs+, Cl-, I-) and one molecular ion (4-nitrophenolate; NP-) within a dense, electroneutral poly(N-isopropylacrylamide) membrane using explicit-water molecular dynamics simulations. Inside the predominantly hydrophobic environment, water distributes in a network of polydisperse water nanoclusters. The average cluster size determines the mean electrostatic self-energy of the simple ions, which preferably reside deeply inside them; we therefore find substantially larger partition ratios K ≃10-1 than expected from a simple Born picture using a uniform dielectric constant. Despite their irregular shapes, we observe that the water clusters possess a universal negative electrostatic potential with respect to their surroundings, as is known for aqueous liquid-vapor interfaces. This potential, which we find concealed in cases of symmetric monatomic salts, can dramatically impact the transfer free energies of larger charged molecules because of their weak hydration and increased affinity to interfaces. Consequently, and in stark contrast to the simple ions, the molecular ion NP- can have a partition ratio much larger than unity, K ≃10-30 (depending on the cation type) or even 103 in excess of monovalent salt, which explains recent observations of enhanced reaction kinetics of NP- reduction catalyzed within dense polymer networks. These results also suggest that ionizing a molecule can even enhance the partitioning in a collapsed, rather hydrophobic gel, which strongly challenges the traditional simplistic reasoning.
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Affiliation(s)
- Matej Kanduč
- Jožef
Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Won Kyu Kim
- Korea
Institute for Advanced Study, 85 Hoegiro, Seoul 02455, Republic of Korea
- Freie
Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
- Research
Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Rafael Roa
- Departamento
de Física Aplicada I, Facultad de
Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Joachim Dzubiella
- Research
Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Applied
Theoretical
Physics—Computational Physics, Physikalisches
Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder Strasse 3, 79104 Freiburg, Germany
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20
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Qi X, Liu R, Chen M, Li Z, Qin T, Qian Y, Zhao S, Liu M, Zeng Q, Shen J. Removal of copper ions from water using polysaccharide-constructed hydrogels. Carbohydr Polym 2019; 209:101-110. [DOI: 10.1016/j.carbpol.2019.01.015] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/03/2018] [Accepted: 01/04/2019] [Indexed: 02/06/2023]
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21
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Hsu CH, Ma C, Bui N, Song Z, Wilson AD, Kostecki R, Diederichsen KM, McCloskey BD, Urban JJ. Enhanced Forward Osmosis Desalination with a Hybrid Ionic Liquid/Hydrogel Thermoresponsive Draw Agent System. ACS OMEGA 2019; 4:4296-4303. [PMID: 31459634 PMCID: PMC6648795 DOI: 10.1021/acsomega.8b02827] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 01/04/2019] [Indexed: 06/10/2023]
Abstract
Forward osmosis (FO) has emerged as a new technology for desalination and exhibits potentials for applications where reverse osmosis is incapable or uneconomical for treating streams with high salinity or fouling propensity. However, most of current draw agents in FO are salts and difficult to be recycled cost- and energy-effectively. In this work, we demonstrate a new and facile approach to efficiently recover water from the FO process with enhanced water purity by using a binary ion liquid/hydrogel system. The hybrid ion liquid/hydrogel draw solution system demonstrated in this work synergistically leverages the thermoresponsive properties of both the ionic liquid (IL) and hydrogel to improve the overall FO performance. Our findings corroborate that the hydrogel mitigates the water flux decline of the IL as the draw agent and provide a ready route to contiguously and effectively regenerate water from the FO process. Such a route allows for an efficient recovery of water from the draw solute/water mixture with enhanced water purity, compared with conventional thermal treating of lower critical solution temperature IL draw solute/water. Furthermore, hydrogels can be used in a continuous and readily recyclable process to recover water without heating the entire draw solute/water mixture. Our design principles open the door to use low-grade/waste heat or solar energy to regenerate draw agents and potentially reduce energy in the FO process considerably.
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Affiliation(s)
- Chih-Hao Hsu
- The
Molecular Foundry and Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Canghai Ma
- The
Molecular Foundry and Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Ngoc Bui
- The
Molecular Foundry and Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Zhuonan Song
- The
Molecular Foundry and Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Aaron D. Wilson
- Idaho
National Laboratory, P.O. Box 1625
MS 2208, Idaho Falls, Idaho 83415, United States
| | - Robert Kostecki
- The
Molecular Foundry and Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Kyle M. Diederichsen
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Bryan D. McCloskey
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Jeffrey J. Urban
- The
Molecular Foundry and Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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22
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Polysaccharide-based cationic hydrogels for dye adsorption. Colloids Surf B Biointerfaces 2018; 170:364-372. [PMID: 29940503 DOI: 10.1016/j.colsurfb.2018.06.036] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/05/2018] [Accepted: 06/18/2018] [Indexed: 12/16/2022]
Abstract
With advances in soft material design and engineering, naturally resourced polysaccharides have frequently been used to construct hydrogels because of their unique properties such as renewability, biodegradability and biocompatibility. In this work, we use a water-soluble microbial polysaccharide, salecan as a trapped natural polymer, poly(acrylamide-co-diallyldimethylammonium chloride) (PAD) as a functional matrix to prepare salecan/PAD hydrogels through a facile one-pot method. We employed a variety of spectroscopic techniques to probe the physicochemical properties of the designed hydrogels. The results demonstrated that salecan not only tuned the polarity of the PAD hydrogels, but also endowed them with adjustable water content. Subsequently, the adsorption performance of these hydrogels to methyl orange (MO) dye was investigated in detail. It was found that the salecan/PAD had the ability to remove MO from the surrounding aqueous solutions. In addition, adsorption kinetic data were nicely described by pseudo-second-order model and the adsorption isotherm data fitted well with the Freundlich equation. Having tailorable physicochemical properties coupled with the ability to uptake dye, these salecan-incorporated hydrogels could be promising platform for wastewater treatment and removal of heavy metal ions.
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23
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Ali W, Gebert B, Altinpinar S, Mayer-Gall T, Ulbricht M, Gutmann JS, Graf K. On the Potential of Using Dual-Function Hydrogels for Brackish Water Desalination. Polymers (Basel) 2018; 10:polym10060567. [PMID: 30966601 PMCID: PMC6403859 DOI: 10.3390/polym10060567] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/18/2018] [Accepted: 05/19/2018] [Indexed: 11/16/2022] Open
Abstract
Although current desalination technologies are mature enough and advanced, the shortage of freshwater is still considered as one of the most pressing global issues. Therefore, there is a strong incentive to explore and investigate new potential methods with low energy consumption. We have previously reported that reversible thermally induced sorption/desorption process using polymeric hydrogels hold promise for water desalination with further development. In order to develop a more effective hydrogels architecture, polyelectrolyte moieties were introduced in this work as pendent chains and a thermally responsive polymer as network backbone using reversible addition-fragmentation chain transfer (RAFT) polymerisation. The ability of the comb-type polymeric hydrogels to desalinate water was evaluated. These hydrogels were proved to absorb water with low salinity from brine solution of 2 g L−1 NaCl and release the absorbed water at relatively low temperature conditions of 50 ∘C. The fraction of the grafted polyacrylic acid and the comb-chain length were varied to understand their influence on the swelling/deswelling behaviour for these hydrogels. The ionic fraction in the hydrogels and the resulting hydrophilic/hydrophobic balance are crucial for the proposed desalination process. In contrast, the comb-chain length impacted the swelling behaviour of hydrogels but showed relatively little influence on the dewatering process.
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Affiliation(s)
- Wael Ali
- Physikalische Chemie and CENIDE (Center for Nanointegration), Universität Duisburg-Essen, Universitätsstr. 2, 45141 Essen, Germany.
- Deutsches Textilforschungszentrum Nord-West gGmbH, Adlerstr. 1, 47798 Krefeld, Germany.
- Physikalische Chemie, Hochschule Niederrhein, Adlerstr. 32, 47798 Krefeld, Germany.
| | - Beate Gebert
- Deutsches Textilforschungszentrum Nord-West gGmbH, Adlerstr. 1, 47798 Krefeld, Germany.
| | - Sedakat Altinpinar
- Physikalische Chemie and CENIDE (Center for Nanointegration), Universität Duisburg-Essen, Universitätsstr. 2, 45141 Essen, Germany.
| | - Thomas Mayer-Gall
- Physikalische Chemie and CENIDE (Center for Nanointegration), Universität Duisburg-Essen, Universitätsstr. 2, 45141 Essen, Germany.
- Deutsches Textilforschungszentrum Nord-West gGmbH, Adlerstr. 1, 47798 Krefeld, Germany.
| | - Mathias Ulbricht
- Technische Chemie II and CENIDE (Center for Nanointegration), Universität Duisburg-Essen, Universitätsstr. 5, 45141 Essen, Germany.
| | - Jochen S Gutmann
- Physikalische Chemie and CENIDE (Center for Nanointegration), Universität Duisburg-Essen, Universitätsstr. 2, 45141 Essen, Germany.
- Deutsches Textilforschungszentrum Nord-West gGmbH, Adlerstr. 1, 47798 Krefeld, Germany.
| | - Karlheinz Graf
- Physikalische Chemie, Hochschule Niederrhein, Adlerstr. 32, 47798 Krefeld, Germany.
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24
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Li J, Yuan S, Wang J, Zhu J, Shen J, Van der Bruggen B. Mussel-inspired modification of ion exchange membrane for monovalent separation. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.02.046] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Büning D, Ennen-Roth F, Walter SV, Hennecke T, Ulbricht M. Potassium-sensitive poly(N-isopropylacrylamide)-based hydrogels for sensor applications. Polym Chem 2018. [DOI: 10.1039/c8py00490k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situcrosslinking polymerization of potassium sensitive hydrogels for advancedin vivosensor applications is studied in detail.
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Affiliation(s)
- Dominic Büning
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Franka Ennen-Roth
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Sarah Verena Walter
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Tobias Hennecke
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45141 Essen
- Germany
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26
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Tang S, Floy M, Bhandari R, Sunkara M, Morris AJ, Dziubla TD, Hilt JZ. Synthesis and Characterization of Thermoresponsive Hydrogels Based on N-Isopropylacrylamide Crosslinked with 4,4'-Dihydroxybiphenyl Diacrylate. ACS OMEGA 2017; 2:8723-8729. [PMID: 29302630 PMCID: PMC5748278 DOI: 10.1021/acsomega.7b01247] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/21/2017] [Indexed: 05/29/2023]
Abstract
A novel crosslinker [4,4'-dihydroxybiphenyl diacrylate (44BDA)] was developed, and a series of temperature-responsive hydrogels were synthesized through free radical polymerization of N-isopropylacrylamide (NIPAAm) with 44BDA. The temperature-responsive behavior of the resulting gels was characterized by swelling studies, and the lower critical solution temperature (LCST) of the hydrogels was characterized through differential scanning calorimetry. Increased content of 44BDA led to a decreased swelling ratio and shifted the LCST to lower temperatures. These novel hydrogels also displayed resiliency through multiple swelling-deswelling cycles, and their temperature responsiveness was reversible. The successful synthesis of NIPAAm-based hydrogels crosslinked with 44BDA has led to a new class of temperature-responsive hydrogel systems with a variety of potential applications.
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Affiliation(s)
- Shuo Tang
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Martha Floy
- Department
of Chemical Engineering, Kansas State University, 1005 Durland Hall 1701A Platt Street, Manhattan, Kansas 66506, United States
| | - Rohit Bhandari
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Manjula Sunkara
- Division
of Cardiovascular Medicine, The Gill Heart Institute, University of Kentucky, 741 S. Limestone Street, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Andrew J. Morris
- Division
of Cardiovascular Medicine, The Gill Heart Institute, University of Kentucky, 741 S. Limestone Street, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Thomas D. Dziubla
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - J. Zach Hilt
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
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27
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Arens L, Albrecht JB, Höpfner J, Schlag K, Habicht A, Seiffert S, Wilhelm M. Energy Consumption for the Desalination of Salt Water Using Polyelectrolyte Hydrogels as the Separation Agent. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700237] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lukas Arens
- Institute for Technical Chemistry and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); Engesserstr. 18 76131 Karlsruhe Germany
| | - Julius B. Albrecht
- Institute for Technical Chemistry and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); Engesserstr. 18 76131 Karlsruhe Germany
| | - Johannes Höpfner
- Institute for Technical Chemistry and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); Engesserstr. 18 76131 Karlsruhe Germany
| | - Karin Schlag
- Institute for Technical Chemistry and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); Engesserstr. 18 76131 Karlsruhe Germany
| | - Axel Habicht
- Institute of Physical Chemistry; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Sebastian Seiffert
- Institute of Physical Chemistry; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Manfred Wilhelm
- Institute for Technical Chemistry and Polymer Chemistry (ITCP); Karlsruhe Institute of Technology (KIT); Engesserstr. 18 76131 Karlsruhe Germany
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28
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Development of Novel N-isopropylacrylamide (NIPAAm) Based Hydrogels with Varying Content of Chrysin Multiacrylate. Gels 2017; 3. [PMID: 29805968 PMCID: PMC5967267 DOI: 10.3390/gels3040040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A series of novel temperature responsive hydrogels were synthesized by free radical polymerization with varying content of chrysin multiacrylate (ChryMA). The goal was to study the impact of this novel polyphenolic-based multiacrylate on the properties of N-isopropylacrylamide (NIPAAm) hydrogels. The temperature responsive behavior of the copolymerized gels was characterized by swelling studies, and their lower critical solution temperature (LCST) was characterized through differential scanning calorimetry (DSC). It was shown that the incorporation of ChryMA decreased the swelling ratios of the hydrogels and shifted their LCSTs to a lower temperature. Gels with different ChryMA content showed different levels of response to temperature change. Higher content gels had a broader phase transition and smaller temperature response, which could be attributed to the increased hydrophobicity being introduced by the ChryMA.
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29
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Kim CL, Kim DE. Durability and Self-healing Effects of Hydrogel Coatings with respect to Contact Condition. Sci Rep 2017; 7:6896. [PMID: 28761116 PMCID: PMC5537306 DOI: 10.1038/s41598-017-07106-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 06/22/2017] [Indexed: 11/17/2022] Open
Abstract
The self-healing property of a hydrogel applied to a glass substrate as a thin polymer coating was assessed. The motivation was to develop a durable hydrogel coating that may be used to protect the surface of precision components from surface damage and scratches. The intrinsic swelling behavior of hydrogel fibers when they are exposed to moisture was exploited to attain the self-healing effect. The mechanical and self-healing properties of the dehydrated hydrogel coating by the freeze-drying process and the hydrated hydrogel coating that was reconstituted by the addition of water were analyzed. After conducting sliding tests with different loads and sliding distances, the wear area was hydrated with water to successfully induce self-healing of the hydrogel coating. It was also found that both the dehydrated hydrogel coating and the hydrated hydrogel coating had improved friction characteristics. In particular, the hydrated hydrogel coating had a much higher durability than the dehydrated coating.
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Affiliation(s)
- Chang-Lae Kim
- Center for Nano-Wear, School of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dae-Eun Kim
- Center for Nano-Wear, School of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
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30
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Ma Y, Sun Y, Fu Y, Fang G, Yan X, Guo Z. Swelling behaviors of porous lignin based poly (acrylic acid). CHEMOSPHERE 2016; 163:610-619. [PMID: 27587327 DOI: 10.1016/j.chemosphere.2016.08.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/26/2016] [Accepted: 08/07/2016] [Indexed: 05/27/2023]
Abstract
Supramolecular cross-linked porous lignin based poly (acrylic acid) [LBPAA] was lab-synthesized by copolymerizing lignin grafted N, N'-methylene-bisacrylamide (LM) and acrylic acid. LBPAA successfully acted as a water retention agent with salt resistance and biodegradation for agricultural applications. Lignin was found to improve its swelling behaviors with higher water retention, fast swelling and de-swelling rates. The salt tolerance was stronger in the case of LBPAA (60 PAA/40 LM) [60 wt% PAA/40 wt% LM], i.e., 145.79 g·g(-1) higher than PAA at 0.09 mM KCl solution. The effect of ion charges on the LBPAA swelling ratio was greater than that of ionic radius. The weight loss of LBPAA (60 PAA/40 LM) was 5.47%, 4.96%, and 4.56% in the soil of Tangshan, Harbin, and Sian, respectively. The soil moisture content and clay content were observed to decrease gradually with increasing the burial time. The biodegradation test of LBPAA (60 PAA/40 LM) composite exhibited different bacterial colony forming units (CFU), the soil of Tangshan was 2.0 × 10(3) CFU·g(-1) soil, 7.0 × 10(3) CFU·g(-1) soil for Harbin, and 6.10 × 10(4) CFU·g(-1) soil for Sian. However, the organic matter contents in the soils did not have significant changes (Tangshan 6.21 mg·g(-1), Harbin 0.61 mg·g(-1), and Sian 0.405 mg·g(-1)).
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Affiliation(s)
- Yanli Ma
- Material Science and Engineering College, Northeast Forestry University, No.26, Hexing Road Xiangfang District, Harbin 150040, China
| | - Yajie Sun
- Material Science and Engineering College, Northeast Forestry University, No.26, Hexing Road Xiangfang District, Harbin 150040, China
| | - Yujie Fu
- Postdoctoral Research Station of Biological Station, Northeast Forestry University, No.26, Hexing Road Xiangfang District, Harbin 150040, China.
| | - Guizhen Fang
- Material Science and Engineering College, Northeast Forestry University, No.26, Hexing Road Xiangfang District, Harbin 150040, China
| | - Xingru Yan
- Integrated Composites Laboratory, Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA
| | - Zhanhu Guo
- Integrated Composites Laboratory, Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA.
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Zhong C, Xie HY, Zhou L, Xu X, Zheng SS. Human hepatocytes loaded in 3D bioprinting generate mini-liver. Hepatobiliary Pancreat Dis Int 2016; 15:512-518. [PMID: 27733321 DOI: 10.1016/s1499-3872(16)60119-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Because of an increasing discrepancy between the number of potential liver graft recipients and the number of organs available, scientists are trying to create artificial liver to mimic normal liver function and therefore, to support the patient's liver when in dysfunction. 3D printing technique meets this purpose. The present study was to test the feasibility of 3D hydrogel scaffolds for liver engineering. METHODS We fabricated 3D hydrogel scaffolds with a bioprinter. The biocompatibility of 3D hydrogel scaffolds was tested. Sixty nude mice were randomly divided into four groups, with 15 mice in each group: control, hydrogel, hydrogel with L02 (cell line HL-7702), and hydrogel with hepatocyte growth factor (HGF). Cells were cultured and deposited in scaffolds which were subsequently engrafted into livers after partial hepatectomy and radiation-induced liver damage (RILD). The engrafted tissues were examined after two weeks. The levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), albumin, total bilirubin, CYP1A2, CYP2C9, glutathione S-transferase (a-GST), and UDP-glucuronosyl transferase (UGT-2) were compared among the groups. Hematoxylin-eosin (HE) staining and immunohistochemistry of cKit and cytokeratin 18 (CK18) of engrafted tissues were evaluated. The survival time of the mice was also compared among the four groups. RESULTS 3D hydrogel scaffolds did not impact the viability of cells. The levels of ALT, AST, albumin, total bilirubin, CYP1A2, CYP2C9, a-GST and UGT-2 were significantly improved in mice engrafted with 3D scaffold loaded with L02 compared with those in control and scaffold only (P<0.05). HE staining showed clear liver tissue and immunohistochemistry of cKit and CK18 were positive in the engrafted tissue. Mice treated with 3D scaffold+L02 cells had longer survival time compared with those in control and scaffold only (P<0.05). CONCLUSION 3D scaffold has the potential of recreating liver tissue and partial liver functions and can be used in the reconstruction of liver tissues.
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Affiliation(s)
- Cheng Zhong
- Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
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Zhao L, Zhao J, Liu Y, Guo Y, Zhang L, Chen Z, Zhang H, Zhang Z. Continuously Tunable Wettability by Using Surface Patterned Shape Memory Polymers with Giant Deformability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:3327-3333. [PMID: 27167599 DOI: 10.1002/smll.201600092] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/03/2016] [Indexed: 06/05/2023]
Abstract
Designing smart surfaces with tunable wettability has drawn much attention in recent years for academic research and practical applications. Most of the previous methods to achieve such surfaces demand some particular materials that inherently have special features or complicated structures which are usually not easy to obtain. A novel strategy to achieve such smart surfaces is proposed by using the surface patterned shape memory polymers of chemically crosslinked polycyclooctene which shows a giant deformability of up to ≈730% strain. The smart surfaces possess the ability to continuously tune the wettability by controlling the recovery temperature and/or time. Coating the modified titanium dioxide nanoparticles onto such surfaces renders the surface superhydrophobicity and expands the tunable range of contact angles (CAs). Theoretical calculations of the CAs at different strains via modified Cassie model well explain the tunable wettability behaviors of such smart surfaces.
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Affiliation(s)
- Lingyu Zhao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
- University of Chinese Academy of Science, Beijing, 100049, China
| | - Jun Zhao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Yayun Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Yufeng Guo
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Liangpei Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Zhuo Chen
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Hui Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Zhong Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
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Wei J, Low ZX, Ou R, Simon GP, Wang H. Hydrogel-polyurethane interpenetrating network material as an advanced draw agent for forward osmosis process. WATER RESEARCH 2016; 96:292-298. [PMID: 27061152 DOI: 10.1016/j.watres.2016.03.072] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
Water desalination and purification are critical to address the global issue of the shortage of clean water. Forward osmosis (FO) desalination is an emerging low-cost technology for clean water production from saline water. The lack of a suitable draw agent is one of hurdle for the commercialization of FO desalination technology. Recently, the thermoresponsive hydrogel has been demonstrated to be a potential draw agent for the FO process. However, the commonly used hydrogel powder shows a much lower flux than other kind of draw agent such as inorganic salts. In this work, a hydrogel-polyurethane interpenetrating network (HPIPN) with monolith form was prepared by controlling the radical polymerization of the monomers (N-isopropylacrylamide and sodium acrylate) in the macropores (∼400 μm) of commercial polyurethane foam (PUF). These HPIPN composites show a flux as high as 17.9 LMH, which is nearly 8 times than that of hydrogel powders (2.2 LMH). The high flux is attributed to the 3-D continuous hydrogel-polyurethane interpenetrating network, which can effectively enhance the water transport inside the monolith.
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Affiliation(s)
- Jing Wei
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Ze-Xian Low
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Ranwen Ou
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - George P Simon
- Department of Materials Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Huanting Wang
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia.
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Qi X, Wei W, Li J, Zuo G, Hu X, Zhang J, Dong W. Development of novel hydrogels based on Salecan and poly(N-isopropylacrylamide-co-methacrylic acid) for controlled doxorubicin release. RSC Adv 2016. [DOI: 10.1039/c6ra10716h] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
We designed a novel semi-interpenetrating polymer network hydrogel for the controlled delivery of doxorubicin.
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Affiliation(s)
- Xiaoliang Qi
- Center For Molecular Metabolism
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Wei Wei
- Center For Molecular Metabolism
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Junjian Li
- Center For Molecular Metabolism
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Gancheng Zuo
- Center For Molecular Metabolism
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Xinyu Hu
- Center For Molecular Metabolism
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Jianfa Zhang
- Center For Molecular Metabolism
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Wei Dong
- Center For Molecular Metabolism
- Nanjing University of Science & Technology
- Nanjing
- China
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35
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Cai Y, Wang R, Krantz WB, Fane AG, Hu X‘M. Exploration of using thermally responsive polyionic liquid hydrogels as draw agents in forward osmosis. RSC Adv 2015. [DOI: 10.1039/c5ra19018e] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Thermally responsive hydrogels based on ionic liquid monomers were prepared by bulk polymerization in the presence of a crosslinker, and explored as draw agents in forward osmosis for the first time.
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Affiliation(s)
- Yufeng Cai
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Nanyang Environmental & Water Research Institute
- Singapore
| | - Rong Wang
- Nanyang Environmental & Water Research Institute
- Singapore
- School of Civil & Environmental Engineering
- Nanyang Technological University
- Singapore 639798
| | - William B. Krantz
- Nanyang Environmental & Water Research Institute
- Singapore
- Department of Chemical and Biological Engineering
- University of Colorado
- USA
| | - Anthony G. Fane
- Nanyang Environmental & Water Research Institute
- Singapore
- School of Civil & Environmental Engineering
- Nanyang Technological University
- Singapore 639798
| | - Xiao ‘Matthew’ Hu
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Nanyang Environmental & Water Research Institute
- Singapore
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