1
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Ram Munnangi S, Narala N, Lakkala P, Kumar Vemula S, Repka M. Assessing Abuse-Deterrent formulations utilizing Ion-Exchange resin complexation processed via Twin-Screw granulation for improved safety and effectiveness. Eur J Pharm Biopharm 2024; 197:114230. [PMID: 38373555 DOI: 10.1016/j.ejpb.2024.114230] [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: 12/02/2023] [Revised: 02/02/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
Opioid misuse is a public health crisis in the United States. In response, the FDA has approved drug products with abuse-deterrent features to reduce the risk of prescription opioid abuse. Abuse-deterrent formulations (ADFs) typically employ physical or chemical barriers or incorporate agonist-antagonist combinations as mechanisms to deter misuse. This study aims to assess the impact of abuse-deterrent properties, specifically ion-exchange resin complexation as a chemical barrier, on a model drug, promethazine hydrochloride (PMZ) tablets. Various formulations were developed through twin-screw wet granulation (TSWG) followed by twin-screw melt granulation (TSMG). In the TSWG process, the drug interacts with the resin through an exchange reaction, forming a drug-resin complex. Additionally, the study explored factors influencing the complex formation between the drug and resin, using the drug loading status as an indicator. DSC and ATR studies were carried out to confirm the formation of the drug-resin complex. Subsequently, hot melt granulation was employed to create a matrix tablet incorporating Kollidon® SR and Kollicoat® MAE 100P, thereby enabling sustained release properties. The drug-resin complex embedded in the matrix effectively deters abuse through methods like smoking, snorting, or parenteral injection, unless the drug can be extracted. In order to assess this, solvent extraction studies were conducted using an FDA-recommended solvents, determining the potential for abuse. Further investigations involved dissolution tests in change-over media, confirming the extended-release properties of the formulation. Results from dissolution studies comparing the ground and intact tablets provided positive evidence of the formulation's effectiveness in deterring abuse. Finally, alcohol-induced dose-dumping studies were conducted in compliance with FDA guidelines, concluding that the formulation successfully mitigates dose dumping in the presence of alcohol.
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Affiliation(s)
- Siva Ram Munnangi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA
| | - Nagarjuna Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Preethi Lakkala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Sateesh Kumar Vemula
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Michael Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
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2
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Jiang W, Zhu K, Xie W, Wang Z, Ou Z, Yang W. Breaking the trade-off between capacity and stability in vanadium-based zinc-ion batteries. Chem Sci 2024; 15:2601-2611. [PMID: 38362413 PMCID: PMC10866371 DOI: 10.1039/d3sc05726g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/04/2024] [Indexed: 02/17/2024] Open
Abstract
Water in electrolytes is a double-edged sword in zinc-ion batteries (ZIBs). While it allows for proton insertion in the cathode, resulting in a significant increase in capacity compared to that of organic ZIBs, it also causes damage to electrodes, leading to performance degradation. To overcome the capacity-stability trade-off, organic solvents containing a small amount of water are proposed to mitigate the harmful effects of water while ensuring sufficient proton insertion. Remarkably, in a Zn(OTf)2 electrolyte using 8% H2O in acetonitrile as the solvent, Zn‖(NH4)0.5V2O5·0.5H2O exhibited a capacity as high as 490 mA h g-1 at a low current (0.3 A g-1), with a capacity retention of 80% even after 9000 cycles at high current (6 A g-1), simultaneously achieving the high capacity as in pure aqueous electrolytes and excellent stability as in organic electrolytes. We also found that the water content strongly impacts the kinetics and reversibility of ion insertion/extraction and zinc stripping/plating. Furthermore, compared to electrolytes with pure acetonitrile or H2O solvents, electrolytes with only 8% H2O in acetonitrile provide higher capacities at temperatures ranging from 0 to -50 °C. These discoveries enhance our understanding of the mechanisms involved in ZIBs and present a promising path toward enhancing electrolyte solutions for the creation of high-performance ZIBs.
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Affiliation(s)
- Weikang Jiang
- Department of Chemical Physics, University of Science and Technology of China Hefei Anhui 230026 China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Kaiyue Zhu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Weili Xie
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Zhengsen Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- School of Chemistry, Dalian University of Technology Dalian 116024 China
| | - Zuqiao Ou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Weishen Yang
- Department of Chemical Physics, University of Science and Technology of China Hefei Anhui 230026 China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
- School of Chemistry, Dalian University of Technology Dalian 116024 China
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3
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Tuermer-Lee JX, Lim A, Ah L, Blau R, Qie Y, Shipley W, Kayser LV, Russman SM, Tao AR, Dayeh SA, Lipomi DJ. Synthesis of PEDOT:PSS Brushes Grafted from Gold Using ATRP for Increased Electrochemical and Mechanical Stability. ACS Macro Lett 2023; 12:1718-1726. [PMID: 38052039 DOI: 10.1021/acsmacrolett.3c00514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
We report PEDOT:PSS brushes grafted from gold using surface-initiated atom-transfer radical polymerization (SI-ATRP) which demonstrate significantly enhanced mechanical stability against sonication and electrochemical cycling compared to spin-coated analogues as well as lower impedances than bare gold at frequencies from 0.1 to 105 Hz. These results suggest SI-ATRP PEDOT:PSS to be a promising candidate for use in microelectrodes for neural activity recording. Spin-coated, electrodeposited, and drop-cast PEDOT:PSS have already been shown to reduce impedance and improve biocompatibility of microelectrodes, but the lack of strong chemical bonds of the physisorbed polymer film to the metal leads to disintegration under required operational stresses including cyclic mechanical loads, abrasion, and electrochemical cycling. Rather than modifying the metal electrode or introducing cross-linkers or other additives to improve the stability of the polymer film, this work chemically tethers the polymer to the surface, offering a simple, scalable solution for functional bioelectronic interfaces.
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Affiliation(s)
- Jason X Tuermer-Lee
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Allison Lim
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Louis Ah
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Rachel Blau
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Yi Qie
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Wade Shipley
- Materials Science and Engineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0418, La Jolla, California 92093-0418, United States
| | - Laure V Kayser
- Department of Materials Science and Engineering, University of Delaware, 201 Dupont Hall, Newark, Delaware 19716-3106, United States
- Department of Chemistry and Biochemistry, University of Delaware, 102 Brown Laboratory, Newark, Delaware 19716-3106, United States
| | - Samantha M Russman
- Integrated Electronics and Biointerfaces Laboratory, Department of Electrical and Computer Engineering, University of California, San Diego, 9736 Engineers Ln, La Jolla, California 92093, United States
| | - Andrea R Tao
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0448, La Jolla, California 92093-0448, United States
- Materials Science and Engineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0418, La Jolla, California 92093-0418, United States
| | - Shadi A Dayeh
- Integrated Electronics and Biointerfaces Laboratory, Department of Electrical and Computer Engineering, University of California, San Diego, 9736 Engineers Ln, La Jolla, California 92093, United States
| | - Darren J Lipomi
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0448, La Jolla, California 92093-0448, United States
- Materials Science and Engineering, University of California, San Diego, 9500 Gilman Dr, Mail Code 0418, La Jolla, California 92093-0418, United States
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4
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Yang Y, Cao X, Ji Y, Zou R. Mechanistic Insights into a Novel Controllable Phase-Transition Polymer for Enhanced Oil Recovery in Mature Waterflooding Reservoirs. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:3101. [PMID: 38132998 PMCID: PMC10745705 DOI: 10.3390/nano13243101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/26/2023] [Accepted: 11/26/2023] [Indexed: 12/23/2023]
Abstract
Expanding swept volume technology via continuous-phase polymer solution and dispersed-phase particle gel is an important technique to increase oil production and control water production in mature waterflooding reservoirs. However, problems such as the low viscosity retention rate, deep migration, and weak mobility control of conventional polymers, and the contradiction between migration distance of particle gel and plugging strength, restrict the long-term effectiveness of oil displacement agents and the in-depth sweep efficiency expanding capability in reservoirs. Combined with the technical advantages of polymer and particle gel, a novel controllable phase-transition polymer was developed and systematically studied to gain mechanistic insights into enhanced oil recovery for mature waterflooding reservoirs. To reveal the phase-transition mechanism, the molecular structure, morphology, and rheological properties of the controllable phase-transition polymer were characterized before and after phase transition. The propagation behavior of the controllable phase-transition polymer in porous media was studied by conducting long core flow experiments. Two-dimensional micro visualization and parallel core flooding experiments were performed to investigate the EOR mechanism from porous media to pore level. Results show that the controllable phase-transition polymer could change phase from dispersed-phase particle gel to continuous-phase solution with the prolongation of ageing time. The controllable phase-transition polymer exhibited phase-transition behavior and good propagation capability in porous media. The results of micro visualization flooding experiments showed that the incremental oil recovery of the controllable phase-transition polymer was highest when a particle gel and polymer solution coexisted, followed by a pure continuous-phase polymer solution and pure dispersed-phase particle gel suspension. The recovery rate of the novel controllable phase-transition polymer was 27.2% after waterflooding, which was 8.9% higher than that of conventional polymer, providing a promising candidate for oilfield application.
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Affiliation(s)
- Yong Yang
- Shengli Oilfield, SINOPEC, Dongying 257001, China; (Y.Y.); (X.C.); (Y.J.)
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Xiaopeng Cao
- Shengli Oilfield, SINOPEC, Dongying 257001, China; (Y.Y.); (X.C.); (Y.J.)
| | - Yanfeng Ji
- Shengli Oilfield, SINOPEC, Dongying 257001, China; (Y.Y.); (X.C.); (Y.J.)
| | - Ruqiang Zou
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
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5
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Keren S, Bukowski C, Barzilay M, Kim M, Stolov M, Crosby AJ, Cohen N, Segal-Peretz T. Mechanical Behavior of Hybrid Thin Films Fabricated by Sequential Infiltration Synthesis in Water-Rich Environment. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47487-47496. [PMID: 37772864 DOI: 10.1021/acsami.3c09609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Sequential infiltration synthesis (SIS) is an emerging technique for fabricating hybrid organic-inorganic materials with nanoscale precision and controlled properties. Central to SIS implementation in applications such as membranes, sensors, and functional coatings is the mechanical properties of hybrid materials in water-rich environments. This work studies the nanocomposite morphology and its effect on the mechanical behavior of SIS-based hybrid thin films of AlOx-PMMA under aqueous environments. Water-supported tensile measurements reveal an unfamiliar behavior dependent on the AlOx content, where the modulus decreases after a single SIS cycle and increases with additional cycles. In contrast, the yield stress constantly decreases as the AlOx content increases. A comparison between water uptake measurements indicates that AlOx induces water uptake from the aqueous environment, implying a "nanoeffect" stemming from AlOx-water interactions. We discuss the two mechanisms that govern the modulus of the hybrid films: softening due to increased water absorption and stiffening as the AlOx volume fraction increases. The decrease in the yield stress with SIS cycles is associated with the limited mobility and extensibility of polymer chains caused by the growth of AlOx clusters. Our study highlights the significance of developing hybrid materials to withstand aqueous or humid conditions which are crucial to their performance and durability.
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Affiliation(s)
- Shachar Keren
- The Wolfson Department of Chemical Engineering, Technion─Israel Institute of Technology, Haifa 32000, Israel
| | - Cynthia Bukowski
- Polymer Science and Engineering Department, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Maya Barzilay
- The Wolfson Department of Chemical Engineering, Technion─Israel Institute of Technology, Haifa 32000, Israel
| | - Myounguk Kim
- Polymer Science and Engineering Department, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Mikhail Stolov
- The Wolfson Department of Chemical Engineering, Technion─Israel Institute of Technology, Haifa 32000, Israel
| | - Alfred J Crosby
- Polymer Science and Engineering Department, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Noy Cohen
- Department of Materials Science and Engineering, Technion─Israel Institute of Technology, Haifa 32000, Israel
| | - Tamar Segal-Peretz
- The Wolfson Department of Chemical Engineering, Technion─Israel Institute of Technology, Haifa 32000, Israel
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6
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Peng S, Xie B, Wang Y, Wang M, Chen X, Ji X, Zhao C, Lu G, Wang D, Hao R, Wang M, Hu N, He H, Ding Y, Zheng S. Low-grade wind-driven directional flow in anchored droplets. Proc Natl Acad Sci U S A 2023; 120:e2303466120. [PMID: 37695920 PMCID: PMC10515142 DOI: 10.1073/pnas.2303466120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/22/2023] [Indexed: 09/13/2023] Open
Abstract
Low-grade wind with airspeed Vwind < 5 m/s, while distributed far more abundantly, is still challenging to extract because current turbine-based technologies require particular geography (e.g., wide-open land or off-shore regions) with year-round Vwind > 5 m/s to effectively rotate the blades. Here, we report that low-speed airflow can sensitively enable directional flow within nanowire-anchored ionic liquid (IL) drops. Specifically, wind-induced air/liquid friction continuously raises directional leeward fluid transport in the upper portion, whereas three-phase contact line (TCL) pinning blocks further movement of IL. To remove excessive accumulation of IL near TCL, fluid dives, and headwind flow forms in the lower portion, as confirmed by microscope observation. Such stratified circulating flow within single drop can generate voltage output up to ~0.84 V, which we further scale up to ~60 V using drop "wind farms". Our results demonstrate a technology to tap the widespread low-grade wind as a reliable energy resource.
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Affiliation(s)
- Shan Peng
- Department of Inorganic Chemistry, College of Chemistry and Materials Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, Baoding, Hebei071002, China
| | - Binglin Xie
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou510641, China
| | - Yanlei Wang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing100190, China
| | - Mi Wang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing100190, China
| | - Xiaoxin Chen
- Department of Inorganic Chemistry, College of Chemistry and Materials Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, Baoding, Hebei071002, China
| | - Xiaoyu Ji
- Department of Inorganic Chemistry, College of Chemistry and Materials Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, Baoding, Hebei071002, China
| | - Chenyang Zhao
- Department of Inorganic Chemistry, College of Chemistry and Materials Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, Baoding, Hebei071002, China
| | - Gang Lu
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Dianyu Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou450001, China
| | - Ruiran Hao
- School of Environmental Engineering, Yellow River Conservancy Technical Institute, Kaifeng475004, China
| | - Mingzhan Wang
- Pritzker School of Molecular Engineering, University of Chicago, ChicagoIL60637
| | - Nan Hu
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou510641, China
- Pazhou Lab., Guangzhou510005, China
| | - Hongyan He
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing100190, China
- Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Zhengzhou451150, China
| | - Yulong Ding
- School of Chemical Engineering, University of Birmingham, BirminghamB15 2TT, United Kingdom
| | - Shuang Zheng
- Department of Civil Engineering, The University of Hong Kong, Hong Kong, China
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7
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Ding G, He Y, Shi Y, Maimaitimin M, Zhang X, Huang H, Huang W, Yu R, Wang J. Sustained-Drug-Release, Strong, and Anti-Swelling Water-Lipid Biphasic Hydrogels Prepared via Digital Light Processing 3D Printing for Protection against Osteoarthritis: Demonstration in a Porcine Model. Adv Healthc Mater 2023; 12:e2203236. [PMID: 36943891 DOI: 10.1002/adhm.202203236] [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: 12/13/2022] [Revised: 02/28/2023] [Indexed: 03/23/2023]
Abstract
Osteoarthritis is a serious disease affecting joint cartilage. Owing to poor blood supply, the meniscus and acetabular labrum of joints heal poorly after injury. However, the development of artificial alternatives to these components that have similar mechanical properties and cartilage-protection ability is challenging. In this study, a strong hydrogel with a biomimetic microstructure is prepared with an emulsion-type photosensitive resin, where both hydrophilic and hydrophobic monomers, photo-initiator, and drugs can be adopted. In this system, the hydrophobic monomer forms uniformly dispersed aggregates after curing, improving the mechanical properties of the hydrogel significantly. Furthermore, the coordination bonds between nontoxic Zr4+ cations and sulfonic acid groups prevent hydrogel swelling. In addition, the water-oil biphasic hydrogel ink enables the loading of water- and lipid-soluble drugs, yielding hydrogel scaffolds with sustained dual-drug release ability. Crucially, hydrogel scaffolds having excellent mechanical properties, low swelling, and sustained biphasic drug release ability can be prepared using digital light processing 3D printing technology, owing to the high curing rate of the hydrophobic photo-initiator. These hydrogel scaffolds are applied as meniscal and labral replacements in a porcine model and show great promise for the prevention of secondary osteoarthritis, demonstrating the broad potential clinical applications of this material.
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Affiliation(s)
- Guocheng Ding
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, 100191, P. R. China
| | - Yangyang He
- Key laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yuanyuan Shi
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, 100191, P. R. China
| | - Maihemuti Maimaitimin
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, 100191, P. R. China
| | - Xin Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, 100191, P. R. China
| | - Hongjie Huang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, 100191, P. R. China
| | - Wei Huang
- Key laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Ran Yu
- Key laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Jianquan Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, 100191, P. R. China
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8
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Kwame Bediako J, Lim CR, Repo E, Choi SH, Yun YS. Polyelectrolyte complex-derived adsorbents capable of selective recovery of precious metal from multiple mixtures. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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9
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Self-Healing and Reprocessable Oleic Acid-Based Elastomer with Dynamic S-S Bonds as Solvent-Free Reusable Adhesive on Copper Surface. Polymers (Basel) 2022; 14:polym14224919. [PMID: 36433046 PMCID: PMC9695700 DOI: 10.3390/polym14224919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
In the last decade, the application of dynamic covalent chemistry in the field of polymeric materials has become the subject of an increasing number of studies, gaining applicative relevance. This is due to the fact that polymers containing dynamic functions possess a structure that affords reprocessability, recyclability and peculiar self-healing properties inconceivable for "classic" polymer networks. Consequently, the synthesis of a dynamic covalent chemistry-based polymer and its chemical, thermal, and mechanical characterizations are reported in the present research. In particular, oleic acid has been used as starting material to follow the founding principles of the circular economy system and, thanks to the aromatic disulfide component, which is the foundation of the material dynamic characteristics, the obtained polymer resulted as being reprocessable and self-healable. Moreover, the polymer can strongly interact with copper surfaces through the formation of stable Cu-S bonds. Then, the application of the polymer as a solvent-free reusable adhesive for copper was investigated by lap joint shear tests and comparisons with the properties of an analogous material, devoid of the disulfide bonds, were conducted.
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10
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Zhai J, Zhang C, Zhao C, Yang W. Preparation of Slow-Release Coated Urea Based on C8-Maleic Anhydride Copolymer-Cured Epoxidized Soybean Oil. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiaxin Zhai
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, China
| | - Chen Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, China
| | - Changwen Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, China
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing100029, China
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education Beijing, Beijing University of Chemical Technology, Beijing100029, China
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, China
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing100029, China
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education Beijing, Beijing University of Chemical Technology, Beijing100029, China
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11
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Wang H, Dong H, Liu X, Zhang P. Preparation and Laboratory Testing of Polymeric Scale Inhibitor Colloidal Materials for Oilfield Mineral Scale Control. Polymers (Basel) 2022; 14:polym14194240. [PMID: 36236188 PMCID: PMC9572485 DOI: 10.3390/polym14194240] [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: 08/28/2022] [Revised: 09/28/2022] [Accepted: 10/01/2022] [Indexed: 11/16/2022] Open
Abstract
Mineral scale refers to the hard crystalline inorganic solid deposit from the water phase. Although scale formation is very common in the natural environment, deposited scale particles can seriously threaten the integrity and safety of various industries, particularly oilfield productions. Scale deposition is one of the three most serious water-related production chemistry threats in the petroleum industry. The most commonly adopted engineering approach to control the scale threat is chemical inhibition by applying scale inhibitor chemicals. Aminophosphonates and polymeric inhibitors are the two major groups of scale inhibitors. To address the drawbacks of conventional inhibitors, scale inhibitor colloidal materials have been prepared as an alternative delivery vehicle of inhibitors for scale control. Quite a few studies have reported on the laboratory synthesis and testing of scale inhibitor colloidal materials composed mainly of pre-precipitated metal-aminophosphonate solids. However, limited research has been conducted on the preparation of polymeric inhibitor-based colloidal materials. This study reports the synthesis approach and laboratory testing of novel polystyrene sulfonate (PSS) based inhibitor colloidal material. PSS was selected in this study due to its high thermal stability and calcium tolerance with no phosphorus in its molecule. Both precipitation and surfactant surface modification methods were employed to prepare a barium-PSS colloidal inhibitor (BaPCI) material with an average diameter of several hundred nanometers. Experimental results indicate that the prepared BaPCI material has a decent migration capacity in the formation medium, and this material is superior to the conventional PSS inhibitor in terms of inhibitor return performance. The prepared novel BaPCI material has a great potential to be adopted for field scale control where environmentally friendly, thermal stable, and/or calcium tolerating requirements should be satisfied. This study further expands and promotes our capacity to fabricate and utilize functional colloidal materials for mineral scale control.
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Affiliation(s)
- Hanji Wang
- School of Marine and Environmental Sciences, Tianjin University of Science and Technology (TUST), Tianjin 300457, China
- Key Laboratory of Marine Resource Chemistry and Food Technology, Tianjin University of Science and Technology (TUST), Tianjin 300457, China
| | - Huaxia Dong
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, China
| | - Xianbin Liu
- School of Marine and Environmental Sciences, Tianjin University of Science and Technology (TUST), Tianjin 300457, China
- Key Laboratory of Marine Resource Chemistry and Food Technology, Tianjin University of Science and Technology (TUST), Tianjin 300457, China
- Correspondence: (X.L.); (P.Z.); Tel.: +86-22-6060-2992 (X.L.); +853-8822-4917 (P.Z.)
| | - Ping Zhang
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, China
- Correspondence: (X.L.); (P.Z.); Tel.: +86-22-6060-2992 (X.L.); +853-8822-4917 (P.Z.)
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12
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Zhai S, Jia X, Lu Z, Ai Y, Liu X, Lin J, He S, Wang Q, Chen L. Highly ion selective composite proton exchange membranes for vanadium redox flow batteries by the incorporation of UiO-66-NH2 threaded with ion conducting polymers. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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13
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Grzeczkowicz A, Lipko A, Kwiatkowska A, Strawski M, Bącal P, Więckowska A, Granicka LH. Polyelectrolyte Membrane Nanocoatings Aimed at Personal Protective and Medical Equipment Surfaces to Reduce Coronavirus Spreading. MEMBRANES 2022; 12:membranes12100946. [PMID: 36295705 PMCID: PMC9611533 DOI: 10.3390/membranes12100946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/09/2022] [Accepted: 09/24/2022] [Indexed: 05/31/2023]
Abstract
The study of the surface of membrane coatings constructed with adsorbed coronavirus (COV) was described to test their suitability for the antiviral activity for application in personal protective and medical equipment. The nanocoating based on polyethyleneimine (PEI) or polystyrene sulfonate (PSS) with metallic nanoparticles incorporated was investigated using the AFM technique. Moreover, the functioning of human lung cells in a configuration with the prepared material with the adsorbed coronavirus was studied using microscopic techniques and flow cytometry. The mean values of the percentage share of viable cells compared with the control differed by a maximum of 22%. The results showed that PEI and PSS membrane layer coatings, modified with chosen metallic nanoparticles (AuNPs, AgNPs, CuNPs, FeNPs) that absorb COV, could support lung cells' function, despite the different distribution patterns of COV on designed surfaces as well as immobilized lung cells. Therefore, the developed membrane nanocoatings can be recommended as material for biomedical applications, e.g., medical equipment surfaces to reduce coronavirus spreading, as they adsorb COV and simultaneously maintain the functioning of the eukaryotic cells.
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Affiliation(s)
- Anna Grzeczkowicz
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4 st., 02-109 Warsaw, Poland
| | - Agata Lipko
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4 st., 02-109 Warsaw, Poland
| | - Angelika Kwiatkowska
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4 st., 02-109 Warsaw, Poland
| | - Marcin Strawski
- Laboratory of Electrochemistry, Faculty of Chemistry, University of Warsaw, Pasteura 1 st., 02-093 Warsaw, Poland
| | - Paweł Bącal
- Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55 st., 00-818 Warsaw, Poland
| | - Agnieszka Więckowska
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Warsaw, Pasteura 1 st., 02-093 Warsaw, Poland
| | - Ludomira H. Granicka
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4 st., 02-109 Warsaw, Poland
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14
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Soyekwo F, Wen H, Dan L, Liu C. Crumpled Globule-Heterotextured Polyamide Membrane Interlayered with Protein-Polyphenol Nanoaggregates for Enhanced Forward Osmosis Performance. ACS APPLIED MATERIALS & INTERFACES 2022; 14:24806-24819. [PMID: 35594151 DOI: 10.1021/acsami.2c05075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Surface modulation of polyamide structures and the development of nanochanneled membranes with excellent water transport properties are crucial for the separation performance enhancement of thin-film composite membranes. Here, we demonstrate the fabrication of a modular nanochannel-integrated polyamide network on a nanoporous interlayer membrane comprising Mxene-reinforced protein-polyphenol nanoaggregates. The research indicates that the confined growth of the polyamide matrix inside this hydrophilic sub-10 nm nanochannel nanoporous intermediate layer stiffened the interfacial channels, leading to the formation of a polyamide layer with a spatial distribution of a network of unique 3D crumpled globule-like nanostructures. The high specific surface area of such a morphology bestowed the membrane with increased filtration area while facilitating the nanofluidic transport of water molecules through the nanochanneled membrane structure, leading to enhanced water flux of up to 26.6 L m-2 h-1 (active layer facing the feed solution) and 41.0 L m-2 h-1 (active layer facing the draw solution) using 1.0 M NaCl as the draw solution. The membrane equally exhibited good treatment for organic solvent forward osmosis filtration and typical seawater desalination. Moreover, the hierarchical nanostructures induced antimicrobial activity by effectively reducing the biofilm formation of Gram-negative Escherichia coli bacteria. This work provides significant insights into the interfacial engineering and compatibility of the nanomaterials and the polymers in interlayer mixed-matrix membranes, which are environmentally sustainable and cost-effective for the fabrication of advanced forward osmosis membranes for water purification and osmotic energy applications.
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Affiliation(s)
- Faizal Soyekwo
- College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Shenzhen 518055, People's Republic of China
| | - Hui Wen
- College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Shenzhen 518055, People's Republic of China
| | - Liao Dan
- College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Shenzhen 518055, People's Republic of China
| | - Changkun Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Shenzhen 518055, People's Republic of China
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15
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Falila NI. Application of Thiazole Yellow G Chromogenic Dye for Spectrophotometric Determination of Some Valuable Elements in Diversified Rock Types. RADIOCHEMISTRY 2022. [DOI: 10.1134/s106636222203016x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Kaya İ, Akyüz B, Kolcu F, Söyüt H. Facile one-pot synthesis of water-soluble conjugated polymers derived from 7-amino-4-hydroxy-2-naphthalenesulfonic acid: Synthesis and photoluminesence properties. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Parkhomenko RG, Knez M. Facile Fabrication of Gold Nanorods@Polystyrenesulfonate Yolk-Shell Nanoparticles for Spaser Applications. ACS APPLIED NANO MATERIALS 2022; 5:4629-4633. [PMID: 35492437 PMCID: PMC9039960 DOI: 10.1021/acsanm.2c00967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
We present a method for producing gold nanorods surrounded by a hollow polymeric shell of polystyrenesulfonate and show that the cavities of such particles can be filled with various organic dyes. The approach consists of covering gold nanorods with silica, followed by its slow hydrolysis in an aqueous medium in the presence of the polymer thin layer permeable for dye molecules. The proposed method enables the yolk-shell nanoparticles to be obtained and loaded with organic dyes without a need to use thermal treatment and/or chemical etching, which makes it suitable for use in the creation of spasers.
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Affiliation(s)
| | - Mato Knez
- CIC
NanoGUNE, Tolosa Hiribidea 76, E-20018 San Sebastian, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza Euskadi 5, E-48009 Bilbao, Spain
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18
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Chen W, Wu Z, Wang Z, Chen C, Zhang Z. Preparation of a reusable and pore size controllable porous polymer monolith and its catalysis of biodiesel synthesis. RSC Adv 2022; 12:12363-12370. [PMID: 35480381 PMCID: PMC9036607 DOI: 10.1039/d2ra01610a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/15/2022] [Indexed: 11/21/2022] Open
Abstract
A sulfonated porous polymer monolith (PPM-SO3H) has been prepared via the polymerisation of styrene (St) and divinyl benzene (DVB) with organic microspheres as pore-forming agents, followed by sulfonation with concentrated sulfuric acid. It was characterized by acid–base titration in order to determine its acid density, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, mercury intrusion porosimetry (MIP) and thermogravimetric analysis (TG). The PPM-SO3H showed an acid density of 1.89 mmol g−1 and pore cavities with an average diameter of 870 nm. The catalytic activity of PPM-SO3H in practical biodiesel synthesis from waste fatty acids was investigated and the main reaction parameters were optimized through orthogonal experiment. The best reaction conditions obtained for the optimization of methanol to oil ratio, catalyst concentration, reaction temperature and reaction time were 1 : 1, 20%, 80 °C and 8 h, respectively. PPM-SO3H showed excellent catalytic activity. In biodiesel synthesis, the esterification rate of PPM-SO3H is 96.9%, which is much higher than that of commercial poly(sodium-p-styrenesulfonate) (esterification rate 29.0%). The PPM-SO3H can be reused several times without significant loss of catalytic activity; the esterification rate was still 90.8% after 6 cycles. The pore size of this porous polymer monolith can be controlled. The dimension and shape of this porous polymer monolith were also adjustable by choosing a suitable polymerisation container. A novel pore size controllable sulfonated porous polymer monolith was fabricated using organic microspheres as pore-forming agents. The monolith exhibited excellent catalytic activity in the synthesis of biodiesel.![]()
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Affiliation(s)
- Weiqing Chen
- College of Chemical Engineering, Hebei Normal University of Science and Technology Qinhuangdao 066600 China
| | - Zhaoji Wu
- College of Chemical Engineering, Hebei Normal University of Science and Technology Qinhuangdao 066600 China
| | - Zhengge Wang
- College of Chemical Engineering, Hebei Normal University of Science and Technology Qinhuangdao 066600 China
| | - Changjiu Chen
- College of Chemical Engineering, Hebei Normal University of Science and Technology Qinhuangdao 066600 China
| | - Zhigang Zhang
- College of Chemical Engineering, Hebei Normal University of Science and Technology Qinhuangdao 066600 China
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19
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Nie X, Hu Z, Xiao T, Li L, Jin J, Liu K, Liu Z. Light-Powered Ion Pumping in a Cation-Selective Conducting Polymer Membrane. Angew Chem Int Ed Engl 2022; 61:e202201138. [PMID: 35133687 DOI: 10.1002/anie.202201138] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Indexed: 11/09/2022]
Abstract
The simulation of the ion pumping against a proton gradient energized by light in photosynthesis is of significant importance for the energy conversion in a non-biological environment. Herein, we report light-powered ion pumping in a polystyrene sulfonate anion (PSS) doped polypyrrole (PPy) conducting polymer membrane (PSS-PPy) with a symmetric geometry. This PSS-PPy conducting polymer membrane exhibits a cationic selectivity and a light-responsive surface-charge-governed ion transport attributed to the negatively charged PSS groups. An asymmetric visible irradiation on one side of the PSS-PPy membrane induces a built-in electric field across the membrane due to the intrinsic photoelectronic property of PPy, which drives the cationic transport against the concentration gradient, demonstrating an ion-pumping effect. This work is a prototype that uses a geometry-symmetric conducting polymer membrane as a light-powered artificial ion pump for active ion transport, which exhibits potential applications in nanofluidic energy conversion.
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Affiliation(s)
- Xiaoyan Nie
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Ziying Hu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Tianliang Xiao
- School of Energy and Power Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Li Li
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Jiao Jin
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Kesong Liu
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Zhaoyue Liu
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
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20
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Xing S, Yan M, Yang Y, Wang Y, Hu X, Ma B, Kang X. Diacerein Loaded Poly (Styrene Sulfonate) and Carbon Nanotubes Injectable Hydrogel: An Effective Therapy for Spinal Cord Injury Regeneration. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02240-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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21
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Balding P, Borrelli R, Volkovinsky R, Russo PS. Physical Properties of Sodium Poly(styrene sulfonate): Comparison to Incompletely Sulfonated Polystyrene. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c01065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul Balding
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Rachel Borrelli
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ron Volkovinsky
- Chattahoochee High School, Johns Creek, Georgia 30022, United States
- Open Polymer Active Learning Laboratory, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Paul S. Russo
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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22
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Nie X, Hu Z, Xiao T, Li L, Jin J, Liu K, Liu Z. Light‐Powered Ion Pumping in a Cation‐Selective Conducting Polymer Membrane. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201138] [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)
- Xiaoyan Nie
- School of Chemistry Beihang University Beijing 100191 P. R. China
| | - Ziying Hu
- Querrey Simpson Institute for Bioelectronics Northwestern University Evanston IL 60208 USA
| | - Tianliang Xiao
- School of Energy and Power Engineering Beihang University Beijing 100191 P. R. China
| | - Li Li
- School of Chemistry Beihang University Beijing 100191 P. R. China
| | - Jiao Jin
- School of Chemistry Beihang University Beijing 100191 P. R. China
| | - Kesong Liu
- School of Chemistry Beihang University Beijing 100191 P. R. China
| | - Zhaoyue Liu
- School of Chemistry Beihang University Beijing 100191 P. R. China
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23
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Shapoval O, Sulimenko V, Klebanovych A, Rabyk M, Shapoval P, Kaman O, Rydvalová E, Filipová M, Dráberová E, Dráber P, Horák D. Multimodal fluorescently labeled polymer-coated GdF 3 nanoparticles inhibit degranulation in mast cells. NANOSCALE 2021; 13:19023-19037. [PMID: 34755752 DOI: 10.1039/d1nr06127e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Multimodal gadolinium fluoride nanoparticles belong to potential contrast agents useful for bimodal optical fluorescence and magnetic resonance imaging. However, the metallic nature of the nanoparticles, similarly to some paramagnetic iron oxides, might induce allergic and anaphylactic reactions in patients after administration. A reduction of these adverse side effects is a priority for the safe application of the nanoparticles. Herein, we prepared paramagnetic poly(4-styrenesulfonic acid-co-maleic acid) (PSSMA)-stabilized GdF3 nanoparticles with surface modified by Atto 488-labeled poly(styrene-grad-2-dimethylaminoethyl acrylate)-block-poly(2-dimethylaminoethyl acrylate) (PSDA-A488) with reactive amino groups for introduction of an additional imaging (luminescence) modality and possible targeting of anticancer drugs. The saturation magnetization of GdF3@PSSMA particles according to SQUID magnetometry reached 157 Am2 kg-1 at 2 K and magnetic field of 7 T. GdF3@PSSMA-PSDA-A488 nanoparticles were well tolerated by human cervical adenocarcinoma (HeLa), mouse bone marrow-derived mast cells (BMMC), and rat basophilic mast cells (RBL-2H3); the particles also affected cell morphology and protein tyrosine phosphorylation in mast cells. Moreover, the nanoparticles interfered with the activation of mast cells by multivalent antigens and inhibited calcium mobilization and cell degranulation. These findings show that the new multimodal GdF3-based nanoparticles possess properties useful for various imaging methods and might minimize mast cell degranulation incurred after future nanoparticle diagnostic administration.
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Affiliation(s)
- Oleksandr Shapoval
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Vadym Sulimenko
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Anastasiya Klebanovych
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Mariia Rabyk
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Pavlo Shapoval
- Department of Physical, Analytical and General Chemistry, Lviv Polytechnic National University, Sv. Yura Sq. 9, 79013 Lviv, Ukraine
| | - Ondřej Kaman
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 112/10, 162 00 Prague 6, Czech Republic
| | - Eliška Rydvalová
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Marcela Filipová
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Eduarda Dráberová
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Pavel Dráber
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Daniel Horák
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
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24
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Webber JL, Bradshaw-Hajek BH, Krasowska M, Beattie DA. Polyelectrolyte multilayer formation on protein layer supports. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Abbett RL, Chen Y, Schlenoff JB. Self-Exchange of Polyelectrolyte in Multilayers: Diffusion as a Function of Salt Concentration and Temperature. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Rachel L. Abbett
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Yuhui Chen
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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26
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Deboli F, Van der Bruggen B, Donten ML. A novel concept of hierarchical cation exchange membrane fabricated from commodity precursors through an easily scalable process. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Delepierre G, Heise K, Malinen K, Koso T, Pitkänen L, Cranston ED, Kilpeläinen I, Kostiainen MA, Kontturi E, Weder C, Zoppe JO, King AWT. Challenges in Synthesis and Analysis of Asymmetrically Grafted Cellulose Nanocrystals via Atom Transfer Radical Polymerization. Biomacromolecules 2021; 22:2702-2717. [PMID: 34060815 PMCID: PMC8382247 DOI: 10.1021/acs.biomac.1c00392] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/17/2021] [Indexed: 11/28/2022]
Abstract
When cellulose nanocrystals (CNCs) are isolated from cellulose microfibrils, the parallel arrangement of the cellulose chains in the crystalline domains is retained so that all reducing end-groups (REGs) point to one crystallite end. This permits the selective chemical modification of one end of the CNCs. In this study, two reaction pathways are compared to selectively attach atom-transfer radical polymerization (ATRP) initiators to the REGs of CNCs, using reductive amination. This modification further enabled the site-specific grafting of the anionic polyelectrolyte poly(sodium 4-styrenesulfonate) (PSS) from the CNCs. Different analytical methods, including colorimetry and solution-state NMR analysis, were combined to confirm the REG-modification with ATRP-initiators and PSS. The achieved grafting yield was low due to either a limited conversion of the CNC REGs or side reactions on the polymerization initiator during the reductive amination. The end-tethered CNCs were easy to redisperse in water after freeze-drying, and the shear birefringence of colloidal suspensions is maintained after this process.
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Affiliation(s)
- Gwendoline Delepierre
- Adolphe
Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Katja Heise
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076, Aalto, Espoo Finland
| | - Kiia Malinen
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076, Aalto, Espoo Finland
| | - Tetyana Koso
- Materials
Chemistry Division, Chemistry Department, University of Helsinki, A.I. Virtasen aukio 1, FI-00560 Helsinki, Finland
| | - Leena Pitkänen
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076, Aalto, Espoo Finland
| | - Emily D. Cranston
- Department
of Wood Science, The University of British
Columbia, 2424 Main Mall, Vancouver, British Columbia V6 T 1Z4, Canada
- Department
of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6 T 1Z4, Canada
| | - Ilkka Kilpeläinen
- Materials
Chemistry Division, Chemistry Department, University of Helsinki, A.I. Virtasen aukio 1, FI-00560 Helsinki, Finland
| | - Mauri A. Kostiainen
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076, Aalto, Espoo Finland
| | - Eero Kontturi
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076, Aalto, Espoo Finland
| | - Christoph Weder
- Adolphe
Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Justin O. Zoppe
- Department
of Materials Science and Engineering, Universitat
Politècnica de Catalunya, Av. Eduard Maristany 16, 08019 Barcelona, Spain
| | - Alistair W. T. King
- Materials
Chemistry Division, Chemistry Department, University of Helsinki, A.I. Virtasen aukio 1, FI-00560 Helsinki, Finland
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28
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Yu HC, Zheng SY, Fang L, Ying Z, Du M, Wang J, Ren KF, Wu ZL, Zheng Q. Reversibly Transforming a Highly Swollen Polyelectrolyte Hydrogel to an Extremely Tough One and its Application as a Tubular Grasper. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2005171. [PMID: 33150633 DOI: 10.1002/adma.202005171] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) and its copolymer hydrogels are typical polyelectrolyte gels with extremely high swelling capacity that are widely used in industry. It's common to consider these hydrogels as weak materials that are difficult to toughen. Reported here is a facile strategy to transform swollen and weak poly(acrylamide-co-2-acrylamido-2-methyl-1-propanesulfonic acid) [P(AAm-co-AMPS)] hydrogels to tough ones by forming strong sulfonate-Zr4+ metal-coordination complexes. The resultant hydrogels with moderate water content possess high stiffness, strength, and fracture energy, which can be tuned over 3-4 orders of magnitude by controlling the composition and metal-to-ligand ratio. Owing to the dynamic nature of the coordination bonds, these hydrogels show rate- and temperature-dependent mechanical performances, as well as good self-recovery properties. This strategy is universal, as manifested by the drastically improved mechanical properties of hydrogels of various natural and synthetic sulfonate-containing polymers. The toughened hydrogels can be converted to the original swollen ones by breaking up the metal-coordination complexes in alkaline solutions. The reversible brittle-tough transition and concomitant dramatic volume change of polyelectrolyte hydrogels afford diverse applications, as demonstrated by the design of a tubular grasper with holding force a thousand times its own weight for objects with different geometries. It is envisioned that these hydrogels enable versatile applications in the biomedical and engineering fields.
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Affiliation(s)
- Hai Chao Yu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Si Yu Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Lingtao Fang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhimin Ying
- Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jing Wang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ke-Feng Ren
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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Noble KF, Troya D, Talley SJ, Ilavsky J, Moore RB. High-Resolution Comonomer Sequencing of Blocky Brominated Syndiotactic Polystyrene Copolymers Using 13C NMR Spectroscopy and Computer Simulations. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kristen F. Noble
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Diego Troya
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Samantha J. Talley
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jan Ilavsky
- X-ray Science Division, Advanced Photon Source Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Robert B. Moore
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
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Golubenko D, Yaroslavtsev A. Development of surface-sulfonated graft anion-exchange membranes with monovalent ion selectivity and antifouling properties for electromembrane processes. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118408] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Chen F, Yang J, Cai R, Qi M, Ma X. Novel, tadpole-shaped, polyhedral oligomeric silsesquioxane containing sulfonated block copolymer for humidity sensing. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Balding P, Li MC, Wu Q, Volkovinsky R, Russo P. Cellulose Nanocrystal-Polyelectrolyte Hybrids for Bentonite Water-Based Drilling Fluids. ACS APPLIED BIO MATERIALS 2020; 3:3015-3027. [PMID: 35025348 DOI: 10.1021/acsabm.0c00071] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cellulose nanocrystals (CNCs), with their rodlike shape and nanoscale dimensions, greatly improve the filtration performance of bentonite-containing, water-based drilling fluids (BT-WDFs) through interactions with the BT platelets. When these WDFs are exposed to high salt concentrations, though, their fluid retention properties are greatly diminished due to reduced CNC-BT interaction and BT aggregation/flocculation. Consequently, we reduce BT-BT interaction at high salt by grafting polyelectrolytes (PE) to CNC particles (CNC-PE) to enhance CNC-BT interactions when incorporating these hybrid particles with BT-WDFs. The particles sterically and electrostatically screen BT platelets from associating, thus improving fluid filtration performance at high salt. Three types of CNC modifications were carried out: grafting from direct surface initiation, modification with vinyl-terminated glycidyl methacrylate (GMA) before grafting, and physical mixing of CNC with a polymer. These modifications were performed using three polyelectrolyte materials: anionic polystyrene sulfonate (PSS), cationic polyacrylamide (PAM), and a random copolymer of PSS and PAM (PSS-co-PAM). Formulations containing CNC-PEs prepared by covalent grafting exhibited superior filtration properties compared to those in which CNCs and PEs were physically mixed. The higher graft loading achieved with the GMA method resulted in poorer filtration results compared to the direct grafting method due to CNC-PE interparticle cross-linking. PSS-modified CNC-PEs appeared to attach to BT edges, while PAM-modified CNC-PEs attached to the BT faces. These interactions disrupted BT aggregation, with the PSS-co-PAM CNC hybrid displaying the most desired filtration properties. The results highlight the importance of steric and charge stabilization of the BT particle edges and faces to achieve high-performance WDFs for well excavation.
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Affiliation(s)
- Paul Balding
- School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.,Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mei-Chun Li
- School of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, Louisiana 70803, United States
| | - Qinglin Wu
- School of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, Louisiana 70803, United States
| | - Ron Volkovinsky
- Chattahoochee High School, Johns Creek, Georgia 30022, United States.,Open Polymer Active Learning Laboratory, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Paul Russo
- School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.,Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.,School of Materials Science & Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Bartel M, Markowska K, Strawski M, Wolska K, Mazur M. Silver-decorated gel-shell nanobeads: physicochemical characterization and evaluation of antibacterial properties. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:620-630. [PMID: 32363129 PMCID: PMC7176999 DOI: 10.3762/bjnano.11.49] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
We report on the synthesis of composite nanobeads with antibacterial properties. The particles consist of polystyrene cores that are surrounded by sulfonic gel shells with embedded silver nanoparticles. The nanocomposite beads are prepared by sulfonation of polystyrene particles followed by accumulation of silver ions in the shell layer and subsequent reduction with sodium borohydride. The resulting material has been characterized by electron microscopy, vibrational and X-ray photoelectron spectroscopy and several other experimental techniques. It was shown that sodium borohydride reduces silver ions embedded in the gel layer producing silver nanoparticles but also transforms a fraction of sulfonic groups in the polymer to moieties with sulfur in a lower oxidation state, likely thiols. It is hypothesized that the generated thiol groups are anchoring the nanoparticles in the gel shell of the nanobeads stabilizing the whole structure. The silver-decorated nanobeads appear to be a promising material with considerable antimicrobial activity and were tested against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Staphylococcus epidermidis. The determined minimum inhibitory (MIC) and minimum biofilm inhibitory (MBIC) concentrations are comparable to those of non-incorporated silver nanoparticles.
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Affiliation(s)
- Marta Bartel
- University of Warsaw, Department of Chemistry, Pasteura 1, 02-093 Warsaw, Poland
| | - Katarzyna Markowska
- University of Warsaw, Department of Biology, Miecznikowa 1, 02-093 Warsaw, Poland
| | - Marcin Strawski
- University of Warsaw, Department of Chemistry, Pasteura 1, 02-093 Warsaw, Poland
| | - Krystyna Wolska
- University of Warsaw, Department of Biology, Miecznikowa 1, 02-093 Warsaw, Poland
| | - Maciej Mazur
- University of Warsaw, Department of Chemistry, Pasteura 1, 02-093 Warsaw, Poland
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Dalla Valle C, Zecca M, Rastrelli F, Tubaro C, Centomo P. Effect of the Sulfonation on the Swollen State Morphology of Styrenic Cross-Linked Polymers. Polymers (Basel) 2020; 12:polym12030600. [PMID: 32155744 PMCID: PMC7182915 DOI: 10.3390/polym12030600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/23/2020] [Accepted: 02/23/2020] [Indexed: 11/29/2022] Open
Abstract
The chemical structure and morphology of a set of sulfonic gel-type poly(styrene-divinylbenzene) resins (2 mol% DVB) prepared with different synthetic approaches were investigated by solid state NMR, Inverse Size Exclusion Chromatography (ISEC), FT-IR and elemental analysis to compare their swollen state structure. FT-IR and solid state NMR clearly show that the sulfonation mainly occurs in the para- position with respect the main polymer chain. Sensible proportions of sulfone bridges were found in the materials obtained with oleum and chlorosulfonic acid. With oleum, the presence of the sulfone bridges is clearly associated to a reduced ability to swell in the water medium relative to the proton exchange capacity. This highlights the cross-linking action of the sulfone bridges according to ISEC results, showing a high proportion of a dense polymer fraction in the swollen material. An even higher degree of sulfone-bridging, lower swelling ability, and a high proportion of a dense polymer fraction in the swollen material are found in the resin obtained with chlorosulfonic acid. As a matter of fact, Cross Polarization Magic Angle Spinning Nuclear Magnetic Resonance (CP-MAS 13C-NMR), elemental analysis, and ion exchange capacity, show that oleum and chlorosulfonic acid produced resins with remarkably smaller pores and lower swollen gel volume in polar solvents, with respect to concentrated sulfuric acid.
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Eneh CI, Bolen MJ, Suarez-Martinez PC, Bachmann AL, Zimudzi TJ, Hickner MA, Batys P, Sammalkorpi M, Lutkenhaus JL. Fourier transform infrared spectroscopy investigation of water microenvironments in polyelectrolyte multilayers at varying temperatures. SOFT MATTER 2020; 16:2291-2300. [PMID: 32043105 DOI: 10.1039/c9sm02478f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polyelectrolyte multilayers (PEMs) are thin films formed by the alternating deposition of oppositely charged polyelectrolytes. Water plays an important role in influencing the physical properties of PEMs, as it can act both as a plasticizer and swelling agent. However, the way in which water molecules distribute around and hydrate ion pairs has not been fully quantified with respect to both temperature and ionic strength. Here, we examine the effects of temperature and ionic strength on the hydration microenvironments of fully immersed poly(diallyldimethylammonium)/polystyrene sulfonate (PDADMA/PSS) PEMs. This is accomplished by tracking the OD stretch peak using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy at 0.25-1.5 M NaCl and 35-70 °C. The OD stretch peak is deconvoluted into three peaks: (1) high frequency water, which represents a tightly bound microenvironment, (2) low frequency water, which represents a loosely bound microenvironment, and (3) bulk water. In general, the majority of water absorbed into the PEM exists in a bound state, with little-to-no bulk water observed. Increasing temperature slightly reduces the amount of absorbed water, while addition of salt increases the amount of absorbed water. Finally, a van't Hoff analysis is applied to estimate the enthalpy (11-22 kJ mol-1) and entropy (48-79 kJ mol-1 K-1) of water exchanging from low to high frequency states.
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Affiliation(s)
- Chikaodinaka I Eneh
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Matthew J Bolen
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Pilar C Suarez-Martinez
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Adam L Bachmann
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - Tawanda J Zimudzi
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Michael A Hickner
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Piotr Batys
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland
| | - Maria Sammalkorpi
- Department of Chemistry and Materials Science, Aalto University, PO Box 16100, 00076 Aalto, Finland and Department of Bioproducts and Biosystems, Aalto University, PO Box 16100, 00076 Aalto, Finland
| | - Jodie L Lutkenhaus
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA. and Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77840, USA
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Shi W, Ma Z, Mu Y, Wang J, Liu X, Dong Z, Wang S, Bai M, Teng Z. Interfacial self-propagation of oleophilic vaterite in crude oil emulsion and its application for reinforcing polyethylene. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.01.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang S, Li F, Dai X, Wang C, Lv X, Waterhouse GIN, Fan H, Ai S. Highly flexible and stable carbon nitride/cellulose acetate porous films with enhanced photocatalytic activity for contaminants removal from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121417. [PMID: 31624002 DOI: 10.1016/j.jhazmat.2019.121417] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 10/06/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
This study describes the successful fabrication of flexible photocatalytic films to remove contaminants from wastewater, the film is comprising sulfuric acid treated graphitic carbon nitride (SA-g-C3N4) embedded within a porous cellulose network (denoted here as CN/CA films). The SA-g-C3N4 content in the films was varied from 0 to 50 wt.%. The sulfuric acid treatment introduced carboxyl and sulfonyl groups on the surface of g-C3N4, which resulted in strong hydrogen bonding with the hydroxyl groups of cellulose acetate (so strong the partial delimination of the SA-g-C3N4 occurred on CN/CA film formation via solvent casting). The obtained films were around 10 μm in thickness, extremely flexible and durable, with the SA-g-C3N4 uniformly distributed throughout the cellulose acetate network. The CN/CA films showed excellent activities for aqueous dye degradation under direct sunlight, as well as outstanding performance for photocatalytic reduction of Cr (VI). The photocatalytic activity of the CN/CA films at the optimum SA-g-C3N4 content of 50 wt.% was far higher than that of pristine SA-g-C3N4, highlighting a main advantage of the composite film fabrication strategy introduced here. Further, the CN/CA films showed excellent stability and reusability, with no loss in activity seen over 5 cycles of dye degradation.
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Affiliation(s)
- Siyu Wang
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Fei Li
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Xiaohui Dai
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Chuanjun Wang
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Xintao Lv
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Geoffrey I N Waterhouse
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China; School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Hai Fan
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China.
| | - Shiyun Ai
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China.
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Kim Y, Kim J, Lee H, Park C, Im S, Kim JH. Synthesis of Stretchable, Environmentally Stable, Conducting Polymer PEDOT Using a Modified Acid Template Random Copolymer. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900465] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Youngno Kim
- Department of Chemical and Biomolecular EngineeringYonsei University Seoul 03722 Republic of Korea
| | - Jooyoung Kim
- Department of Chemical and Biomolecular EngineeringYonsei University Seoul 03722 Republic of Korea
| | - Hongjoo Lee
- Department of Chemical and Biomolecular EngineeringYonsei University Seoul 03722 Republic of Korea
| | - Chanil Park
- Department of Chemical and Biomolecular EngineeringYonsei University Seoul 03722 Republic of Korea
| | - Soeun Im
- Department of Chemical and Biomolecular EngineeringYonsei University Seoul 03722 Republic of Korea
| | - Jung Hyun Kim
- Department of Chemical and Biomolecular EngineeringYonsei University Seoul 03722 Republic of Korea
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Mao X, Xu M, Wu H, He X, Shi B, Cao L, Yang P, Qiu M, Geng H, Jiang Z. Supramolecular Calix[ n]arenes-Intercalated Graphene Oxide Membranes for Efficient Proton Conduction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:42250-42260. [PMID: 31644869 DOI: 10.1021/acsami.9b15331] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Graphene oxide (GO) membranes with 2D interlaminar channels have triggered intensive interest as ion conductors. Incorporating abundant ion-conducting sites into GO interlayers is recognized as an effective strategy to facilitate ion conduction. Herein, we designed supramolecular compounds, para-sulphonato-calix[n]arenes (p-SC[n]As), as versatile intercalators to acquire highly conductive and robust GO membranes. The SC[n]A with ultrahigh ionic exchange capacity (IECw, 5.37 mmol g-1) imparts sufficient proton donors, and its rigid framework imparts strong support of adjacent nanosheets. We designed three kinds of SC[n]As with the same IECw but different sizes as intercalators, endowing the GO/SC[n]A membranes with increasing ion concentration and d-spacing in the order of GO/SC[4]A < GO/SC[6]A < GO/SC[8]A. Therefore, the interlayers of GO/SC[8]A membranes afforded higher density of proton donors and could accommodate more water molecules to construct more continuous H-bond networks for proton transfer. Accordingly, the proton conductivities exhibited the same increasing trend, up to 327.0 mS cm-1 of GO/SC[8]A-30% at 80 °C, 100% RH, which was 2.80 times higher than that of the GO membrane. Moreover, the GO/SC[n]A membranes remained stable in wet state, along with a 66% elevation in mechanical performance compared to the GO membrane.
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Affiliation(s)
- Xunli Mao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Mingzhao Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Hong Wu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology , Tianjin University , Tianjin 300072 , P. R. China
| | - Xueyi He
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Benbing Shi
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Li Cao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Pengfei Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Ming Qiu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Haobo Geng
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , P. R. China
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P C Caplan S, B G Silva T, D S Franscisco A, R Lachter E, S V Nascimento R. Sulfonated Polystyrene Nanoparticles as Oleic Acid Diethanolamide Surfactant Nanocarriers for Enhanced Oil Recovery Processes. Polymers (Basel) 2019; 11:polym11091513. [PMID: 31533300 PMCID: PMC6780598 DOI: 10.3390/polym11091513] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/07/2019] [Accepted: 09/09/2019] [Indexed: 11/16/2022] Open
Abstract
The aim of this study is the evaluation of partially sulfonated polystyrene nanoparticles (SPSNP) efficiency as nanocarriers for a non-ionic surfactant, oleic acid diethanolamide (OADA), in the reduction of the surfactant losses and the increase of oil recovery. The synthesized oleic acid diethanolamide was characterized by FTIR, 1H NMR, 13C NMR, surface tension (γ = 36.6 mN·m−1, CMC = 3.13 × 10−4 M) and interfacial tension of mineral oil/OADA aqueous solutions (IFTeq = 0.07 mN·m−1). The nanoparticles (SPSNP) were obtained by emulsion polymerization of styrene, DVB and sodium 4-styrenesulfonate (St-S) in the presence of OADA aqueous solution and were characterized by FTIR and PCS. The results show that the presence of ionic groups in the polymer structure promoted a better nanoparticles suspensions′ stability, smaller particles production and more pronounced IFT reduction. The SPSNP obtained with an OADA concentration twenty times its CMC and 0.012 mol % of St-S presented a particle size around 66 nm and can act as efficient nanocarriers decreasing the water/oil interfacial tension to low values (0.07 mN·m−1) along the time, when in contact with the oil. Transport and oil recovery tests of the nanocarriers systems in an unconsolidated sand porous medium test show that the SPSNP do inhibit surfactant adsorption onto sand particles surface and induced an increase of oil recovery of up to about 13% relative to the water flooding oil recovery, probably due to a synergistic effect between the nanoparticles and surfactant action at the water/oil interface.
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Affiliation(s)
- Shalimar P C Caplan
- Instituto de Química-Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brasil.
| | - Thaís B G Silva
- Instituto de Química-Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brasil.
| | - Agatha D S Franscisco
- Instituto de Química-Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brasil.
| | - Elizabeth R Lachter
- Instituto de Química-Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brasil.
| | - Regina S V Nascimento
- Instituto de Química-Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brasil.
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Self-Assembly Investigations of Sulfonated Poly(methyl methacrylate-block-styrene) Diblock Copolymer Thin Films. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/4375838] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Poly(methyl methacrylate-block-styrene) block copolymers (BCs) of low dispersity were selectively sulfonated on the styrenic segment. Several combinations of degree of polymerization and volume fraction of each block were investigated to access different self-assembled morphologies. Thin films of the sulfonated block copolymers were prepared by spin-coating and exposed to solvent vapor (SVA) or thermal annealing (TA) to reach equilibrium morphologies. Atomic force microscopy (AFM) was employed for characterizing the films, which exhibited a variety of nanometric equilibrium and nonequilibrium morphologies. Highly sulfonated samples revealed the formation of a honeycomb-like morphology obtained in solution rather than by the self-assembly of the BC in the solid state. The described morphologies may be employed in applications such as templates for nanomanufacturing and as cover and binder of catalytic particles in fuel cells.
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Specific oligomer recovery behavior from cured unsaturated polyester by superheated steam degradation. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2018.12.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Appraisal of Sulphonation Processes to Synthesize Palm Waste Biochar Catalysts for the Esterification of Palm Fatty Acid Distillate. Catalysts 2019. [DOI: 10.3390/catal9020184] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Palm waste biochar (PWB) catalysts were synthesized as bio-based catalysts using different sulphonation methods. (NH4)2SO4, ClSO3H, and H2SO4 were applied to functionalize PWB and appraise the discrepancies between the sulfonic agents, as they affect the esterification reaction in terms of fatty acid methyl ester (FAME) yield and conversion while using palm fatty acid distillate (PFAD) as feedstock. The PWB was first soaked in phosphoric acid (H3PO4) for 24 h and then pyrolized at 400 °C for 2 h in tube furnace. Afterwards, sulphonation was done with different sulfonic agents and characterized with thermo-gravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), Fourier transform infrared (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray (EDX), and temperature programmed desorption–ammonia (TPD-NH3). The three synthesized catalysts showed high free fatty acid (FFA) conversions of 90.1% for palm waste biochar-ammonium sulfate (PWB-(NH4)2SO4), 91.5% for palm waste biochar-chlorosulfonic acid (PWB-ClSO3H), and 97.4% for palm waste biochar - sulphuric acid (PWB-H2SO4), whereas FAME yields were 88.6% (PWB-(NH4)2SO4), 89.1% (PWB-ClSO3H), and 96.1% (PWB-H2SO4). It was observed that PWB-H2SO4 has the best catalytic activity, which was directly linked to its high acid density (11.35 mmol/g), improved pore diameter (6.25 nm), and increased specific surface area (372.01 m2 g−1). PWB-H2SO4 was used for the reusability study, where it underwent eight reaction runs and was stable until the seventh run. PWB-H2SO4 has shown huge promise for biodiesel synthesis, owing to its easy synthetic process, recyclability, and high catalytic activity for waste oils and fats.
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Frenzel F, Borchert P, Anton AM, Strehmel V, Kremer F. Charge transport and glassy dynamics in polymeric ionic liquids as reflected by their inter- and intramolecular interactions. SOFT MATTER 2019; 15:1605-1618. [PMID: 30672557 DOI: 10.1039/c8sm02135j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Polymeric ionic liquids (PILs) form a novel class of materials in which the extraordinary properties of ionic liquids (ILs) are combined with the mechanical stability of polymeric systems qualifying them for multifold applications. In the present study broadband dielectric spectroscopy (BDS), Fourier transform infrared spectroscopy (FTIR), AC-chip calorimetry (ACC) and differential scanning calorimetry (DSC) are combined in order to unravel the interplay between charge transport and glassy dynamics. Three low molecular weight ILs and their polymeric correspondents are studied with systematic variations of anions and cations. For all examined samples charge transport takes place by glassy dynamics assisted hopping conduction. In contrast to low molecular weight ILs the thermal activation of DC conductivity for the polymeric systems changes from a Vogel-Fulcher-Tammann- to an Arrhenius-dependence at a (sample specific) temperature Tσ0. This temperature has been widely discussed to coincide with the glass transition temperature Tg, a refined analysis, instead, reveals Tσ0 of all PILs under study at up to 80 K higher values. In effect, below the Tσ0 charge transport in PILs becomes more efficient - albeit on a much lower level compared to the low molecular weight pendants - indicating conduction paths along the polymer chain. This is corroborated by analysing the temperature dependence of specific IR-active vibrations showing at Tσ0 distinct changes in the spectral position and the oscillator strength, whereas other molecular units are not affected. This leads to the identification of charge transport responsive (CTR) as well as charge transport irresponsive (CTI) moieties and paves the way to a refined molecular understanding of electrical conduction in PILs.
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Affiliation(s)
- Falk Frenzel
- Leipzig University, Peter Debye Institute for Soft Matter Physics I, Linnéstrasse 5, 04103 Leipzig, Germany.
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Kim J, Park C, Im S, Lee H, Kim JH. Effect of molecular weight distribution of PSSA on electrical conductivity of PEDOT:PSS. RSC Adv 2019; 9:4028-4034. [PMID: 35518098 PMCID: PMC9060473 DOI: 10.1039/c8ra09919g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/13/2019] [Indexed: 12/03/2022] Open
Abstract
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most successful conductive polymer. In this study, we investigated the electrical properties of PEDOT:PSS prepared using poly(styrenesulfonic acid) (PSSA) having different molecular weight distributions. Herein PSSA with different molecular weight distributions were successfully polymerized by free radical polymerization and atom-transfer radical polymerization (ATRP). Polydispersity index values of PSSA obtained by the free radical process and ATRP process were 2.3–2.8 and 1.2–1.6 respectively. The electrical conductivity of PEDOT:PSS was enhanced from 376 S cm−1 (prepared using free radical PSSA) to 422 S cm−1 (prepared using ATRP PSSA) when PSSA of Mn 35 000 g mol−1 PSSA was used and was enhanced from 234 S cm−1 (prepared using free radical PSSA) to 325 S cm−1 (prepared using ATRP PSSA) when PSSA of Mn 55 000 g mol−1 was used, by a factor of 15–30%. The greater the regularity of PSSA, the greater the packing density of PEDOT:PSS and consequently, charge carrier density. The improvement of packing density of PEDOT:PSS was confirmed by improvement in crystallinity of PEDOT:PSS by X-ray diffraction (XRD) analysis. Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most successful conductive polymer.![]()
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Affiliation(s)
- Jooyoung Kim
- Department of Chemical Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Chanil Park
- Department of Chemical Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Soeun Im
- Department of Chemical Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Hongjoo Lee
- Department of Chemical Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Jung Hyun Kim
- Department of Chemical Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- South Korea
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48
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Benbow NL, Webber JL, Pawliszak P, Sebben DA, Ho TTM, Vongsvivut J, Tobin MJ, Krasowska M, Beattie DA. A Novel Soft Contact Piezo-Controlled Liquid Cell for Probing Polymer Films under Confinement using Synchrotron FTIR Microspectroscopy. Sci Rep 2018; 8:17804. [PMID: 30546121 PMCID: PMC6292912 DOI: 10.1038/s41598-018-34673-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/11/2018] [Indexed: 12/21/2022] Open
Abstract
Soft polymer films, such as polyelectrolyte multilayers (PEMs), are useful coatings in materials science. The properties of PEMs often rely on the degree of hydration, and therefore the study of these films in a hydrated state is critical to allow links to be drawn between their characteristics and performance in a particular application. In this work, we detail the development of a novel soft contact cell for studying hydrated PEMs (poly(sodium 4-styrenesulfonate)/poly(allylamine hydrochloride)) using FTIR microspectroscopy. FTIR spectroscopy can interrogate the nature of the polymer film and the hydration water contained therein. In addition to reporting spectra obtained for hydrated films confined at the solid-solid interface, we also report traditional ATR FTIR spectra of the multilayer. The spectra (microspectroscopy and ATR FTIR) reveal that the PEM film build-up proceeds as expected based on the layer-by-layer assembly methodology, with increasing signals from the polymer FTIR peaks with increasing bilayer number. In addition, the spectra obtained using the soft contact cell indicate that the PEM film hydration water has an environment/degree of hydrogen bonding that is affected by the chemistry of the multilayer polymers, based on differences in the spectra obtained for the hydration water within the film compared to that of bulk electrolyte.
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Affiliation(s)
- Natalie L Benbow
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia.,School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - Jessie L Webber
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia.,School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - Piotr Pawliszak
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia.,School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - Damien A Sebben
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - Tracey T M Ho
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - Jitraporn Vongsvivut
- Infrared Microspectroscopy (IRM) Beamline, Australian Synchrotron, Clayton, Victoria, 3168, Australia
| | - Mark J Tobin
- Infrared Microspectroscopy (IRM) Beamline, Australian Synchrotron, Clayton, Victoria, 3168, Australia
| | - Marta Krasowska
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia.,School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - David A Beattie
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia. .,School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, South Australia, 5095, Australia.
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49
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Schulze-Zachau F, Bachmann S, Braunschweig B. Effects of Ca 2+ Ion Condensation on the Molecular Structure of Polystyrene Sulfonate at Air-Water Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11714-11722. [PMID: 30188134 PMCID: PMC6170951 DOI: 10.1021/acs.langmuir.8b02631] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/05/2018] [Indexed: 06/02/2023]
Abstract
The structure of poly(sodium 4-styrenesulfonate) (NaPSS) polyelectrolytes at air-water interfaces was investigated with tensiometry, ellipsometry, and vibrational sum-frequency generation (SFG) in the presence of low and high CaCl2 concentrations. In addition, we have studied the foaming behavior of 20 mM NaPSS solutions to relate the PSS molecular structure at air-water interfaces to foam properties. PSS polyelectrolytes without additional salt exhibited significant surface activity, which can be tuned further by additions of CaCl2. The hydrophobicity of the backbone due to incomplete sulfonation during synthesis is one origin, whereas the effective charge of the polyelectrolyte chain is shown to play another major role. At low salt concentrations, we propose that the polyelectrolyte is forming a layered structure. The hydrophobic parts are likely to be located directly at the interface in loops, whereas the hydrophilic parts are at low concentrations stretched out into near-interface regions in tails. Increasing the Ca2+ concentration leads to ion condensation, a collapse of the tails, and likely to Ca2+ intra- and intermolecular bridges between polyelectrolytes at the interface. The increase in both surface excess and foam stability originates from changes in the polyelectrolyte's hydrophobicity due to Ca2+ condensation onto the PSS polyanions. Consequently, charge screening at the interface is enhanced and repulsive electrostatic interactions are reduced. Furthermore, SFG spectra of O-H stretching bands reveal a decrease in intensity of the low-frequency branch when c(Ca2+) is increased whereas the high-frequency branch of O-H stretching modes persists even for 1 M CaCl2. This originates from the remaining net charge of the PSS polyanions at the air-water interface that is not fully compensated by condensation of Ca2+ ions and leads to electric-field-induced contributions to the SFG spectra of interfacial H2O. A charge reversal of the PSS net charge at the air-water interface is not observed and is consistent with bulk electrophoretic mobility measurements.
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Affiliation(s)
- Felix Schulze-Zachau
- Institute
of Physical Chemistry and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Silvia Bachmann
- Institute
of Particle Technology (LFG), Friedrich-Alexander-Universität
Erlangen-Nürnberg (FAU), Cauerstraße 4, 91058 Erlangen, Germany
| | - Björn Braunschweig
- Institute
of Physical Chemistry and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
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50
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Liu Z, Mi Z, Jin S, Wang C, Wang D, Zhao X, Zhou H, Chen C. The influence of sulfonated hyperbranched polyethersulfone-modified halloysite nanotubes on the compatibility and water separation performance of polyethersulfone hybrid ultrafiltration membranes. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.04.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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