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Furtado AI, Bonifácio VDB, Viveiros R, Casimiro T. Design of Molecularly Imprinted Polymers Using Supercritical Carbon Dioxide Technology. Molecules 2024; 29:926. [PMID: 38474438 DOI: 10.3390/molecules29050926] [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: 12/15/2023] [Revised: 02/09/2024] [Accepted: 02/11/2024] [Indexed: 03/14/2024] Open
Abstract
The design and development of affinity polymeric materials through the use of green technology, such as supercritical carbon dioxide (scCO2), is a rapidly evolving field of research with vast applications across diverse areas, including analytical chemistry, pharmaceuticals, biomedicine, energy, food, and environmental remediation. These affinity polymeric materials are specifically engineered to interact with target molecules, demonstrating high affinity and selectivity. The unique properties of scCO2, which present both liquid- and gas-like properties and an accessible critical point, offer an environmentally-friendly and highly efficient technology for the synthesis and processing of polymers. The design and the synthesis of affinity polymeric materials in scCO2 involve several strategies. Commonly, the incorporation of functional groups or ligands into the polymer matrix allows for selective interactions with target compounds. The choice of monomer type, ligands, and synthesis conditions are key parameters of material performance in terms of both affinity and selectivity. In addition, molecular imprinting allied with co-polymerization and surface modification are commonly used in these strategies, enhancing the materials' performance and versatility. This review aims to provide an overview of the key strategies and recent advancements in the design of affinity polymeric materials using scCO2.
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Affiliation(s)
- Ana I Furtado
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science & Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
- iBB-Institute for Bioengineering and Biosciences and i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisboa, Portugal
| | - Vasco D B Bonifácio
- iBB-Institute for Bioengineering and Biosciences and i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisboa, Portugal
- Bioengineering Department, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Raquel Viveiros
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science & Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
| | - Teresa Casimiro
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science & Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
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NP Ghoderao P, Lee CW, Byun HS. Binary Systems for the Trimethylolpropane Triacrylate and Trimethylolpropane Trimethacrylate in Supercritical Carbon Dioxide: Experiment and Modeling. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ghoderao PN, Dhamodharan D, Mubarak S, Byun HS. Phase behavioral study of binary systems for the vinyl Benzoate, vinyl pivalate and vinyl octanoate with carbon dioxide at high-pressure. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Donato L, Nasser II, Majdoub M, Drioli E. Green Chemistry and Molecularly Imprinted Membranes. MEMBRANES 2022; 12:472. [PMID: 35629798 PMCID: PMC9144692 DOI: 10.3390/membranes12050472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/22/2022] [Accepted: 04/24/2022] [Indexed: 11/16/2022]
Abstract
Technological progress has made chemistry assume a role of primary importance in our daily life. However, the worsening of the level of environmental pollution is increasingly leading to the realization of more eco-friendly chemical processes due to the advent of green chemistry. The challenge of green chemistry is to produce more and better while consuming and rejecting less. It represents a profitable approach to address environmental problems and the new demands of industrial competitiveness. The concept of green chemistry finds application in several material syntheses such as organic, inorganic, and coordination materials and nanomaterials. One of the different goals pursued in the field of materials science is the application of GC for producing sustainable green polymers and membranes. In this context, extremely relevant is the application of green chemistry in the production of imprinted materials by means of its combination with molecular imprinting technology. Referring to this issue, in the present review, the application of the concept of green chemistry in the production of polymeric materials is discussed. In addition, the principles of green molecular imprinting as well as their application in developing greenificated, imprinted polymers and membranes are presented. In particular, green actions (e.g., the use of harmless chemicals, natural polymers, ultrasound-assisted synthesis and extraction, supercritical CO2, etc.) characterizing the imprinting and the post-imprinting process for producing green molecularly imprinted membranes are highlighted.
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Affiliation(s)
- Laura Donato
- Institute on Membrane Technology, CNR-ITM, University of Calabria, Via P. Bucci, 17/C, 87030 Rende, CS, Italy;
| | - Imen Iben Nasser
- Faculté des Sciences de Monastir, Université de Monastir, Bd. de l’Environnement, Monastir 5019, Tunisia; (I.I.N.); (M.M.)
| | - Mustapha Majdoub
- Faculté des Sciences de Monastir, Université de Monastir, Bd. de l’Environnement, Monastir 5019, Tunisia; (I.I.N.); (M.M.)
| | - Enrico Drioli
- Institute on Membrane Technology, CNR-ITM, University of Calabria, Via P. Bucci, 17/C, 87030 Rende, CS, Italy;
- Department of Engineering and of the Environment, University of Calabria, 87030 Rende, CS, Italy
- College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
- Centre of Excellence in Desalination Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Dhamodharan D, Park CW, Ghoderao PN, Byun HS. Experimental and computational investigation of two-component mixtures for the alkyl (ethyl, propyl and butyl) oleate in supercritical carbon dioxide. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Arabi M, Ostovan A, Li J, Wang X, Zhang Z, Choo J, Chen L. Molecular Imprinting: Green Perspectives and Strategies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100543. [PMID: 34145950 DOI: 10.1002/adma.202100543] [Citation(s) in RCA: 289] [Impact Index Per Article: 96.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/25/2021] [Indexed: 05/04/2023]
Abstract
Advances in revolutionary technologies pose new challenges for human life; in response to them, global responsibility is pushing modern technologies toward greener pathways. Molecular imprinting technology (MIT) is a multidisciplinary mimic technology simulating the specific binding principle of enzymes to substrates or antigens to antibodies; along with its rapid progress and wide applications, MIT faces the challenge of complying with green sustainable development requirements. With the identification of environmental risks associated with unsustainable MIT, a new aspect of MIT, termed green MIT, has emerged and developed. However, so far, no clear definition has been provided to appraise green MIT. Herein, the implementation process of green chemistry in MIT is demonstrated and a mnemonic device in the form of an acronym, GREENIFICATION, is proposed to present the green MIT principles. The entire greenificated imprinting process is surveyed, including element choice, polymerization implementation, energy input, imprinting strategies, waste treatment, and recovery, as well as the impacts of these processes on operator health and the environment. Moreover, assistance of upgraded instrumentation in deploying greener goals is considered. Finally, future perspectives are presented to provide a more complete picture of the greenificated MIT road map and to pave the way for further development.
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Affiliation(s)
- Maryam Arabi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Abbas Ostovan
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Xiaoyan Wang
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China
| | - Zhiyang Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Jaebum Choo
- Department of Chemistry, Chung-Ang University, Seoul, 06974, South Korea
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
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Wang G, Cai G. Cooperative catalytic effects between Brønsted and Lewis acid sites and kinetics for production of methyl methacrylate on SO42−/TiO2-SiO2. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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MIP Synthesis and Processing Using Supercritical Fluids. Methods Mol Biol 2021; 2359:19-42. [PMID: 34410657 DOI: 10.1007/978-1-0716-1629-1_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Supercritical fluid technology provides a clean and straightforward way for the preparation of high affinity polymeric materials. Molecularly Imprinted Polymers (MIPs) as dry, free-flowing powders are obtained in a one-step synthetic route yielding molecular recognition materials for several applications. Herein, we describe the experimental procedures involved in the scCO2-assisted MIP development: synthesis, template desorption, impregnation, and membrane preparation. MIP applications are described putting in evidence the advantages of MIP development using supercritical fluid technology.
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Molecularly Imprinted Polymers Doped with Carbon Nanotube with Aid of Metal-Organic Gel for Drug Delivery Systems. Pharm Res 2020; 37:193. [PMID: 32914377 DOI: 10.1007/s11095-020-02902-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 08/05/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE The incidence of breast cancer worldwide has been on the rise since the late 1970s, and it has become a common tumor that threatens women's health. Aminoglutethimide (AG) is a common treatment of breast cancer. However, current treatments require frequent dosing that results in unstable plasma concentration and low bioavailability, risking serious adverse reactions. Our goal was to develop a molecularly imprinted polymer (MIP) based delivery system to control the release of AG and demonstrate the availability of this drug delivery system (DDS), which was doped with carbon nanotube with aid of metal-organic gel. METHODS Preparation of MIP was optimized by key factors including composition of formula, ratio of monomers and drug loading concentration. RESULTS By using multi-walled carbon nanotubes (MWCNT) and metal-organic gels (MOGs), MIP doubled the specific surface area, pore volume tripled and the IF was 1.6 times than the reference. Compared with commercial tablets, the relative bioavailability was 143.3% and a more stable release appeared. CONCLUSIONS The results highlight the influence of MWCNT and MOGs on MIP, which has great potential as a DDS.
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Rebocho S, Cordas CM, Viveiros R, Casimiro T. Development of a ferrocenyl-based MIP in supercritical carbon dioxide: Towards an electrochemical sensor for bisphenol A. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2018.01.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Viveiros R, Rebocho S, Casimiro T. Green Strategies for Molecularly Imprinted Polymer Development. Polymers (Basel) 2018; 10:E306. [PMID: 30966341 PMCID: PMC6415187 DOI: 10.3390/polym10030306] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/01/2018] [Accepted: 03/06/2018] [Indexed: 11/24/2022] Open
Abstract
Molecular imprinting is a powerful technology to create artificial receptors within polymeric matrices. Although it was reported for the first time by Polyakov, eighty-four years ago, it remains, nowadays, a very challenging research area. Molecularly imprinted polymers (MIPs) have been successfully used in several applications where selective binding is a requirement, such as immunoassays, affinity separation, sensors, and catalysis. Conventional methods used on MIP production still use large amounts of organic solvents which, allied with stricter legislation on the use and release of chemicals to the environment and the presence of impurities on final materials, will boost, in our opinion, the use of new cleaner synthetic strategies, in particular, with the application of the principles of green chemistry and engineering. Supercritical carbon dioxide, microwave, ionic liquids, and ultrasound technology are some of the green strategies which have already been applied in MIP production. These strategies can improve MIP properties, such as controlled morphology, homogeneity of the binding sites, and the absence of organic solvents. This review intends to give examples reported in literature on green approaches to MIP development, from nano- to micron-scale applications.
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Affiliation(s)
- Raquel Viveiros
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - Sílvia Rebocho
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - Teresa Casimiro
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
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Marcelo G, Ferreira IC, Viveiros R, Casimiro T. Development of itaconic acid-based molecular imprinted polymers using supercritical fluid technology for pH-triggered drug delivery. Int J Pharm 2018. [PMID: 29526621 DOI: 10.1016/j.ijpharm.2018.03.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel pH-responsive molecularly imprinted polymer (MIP) based on Itaconic acid:Ethylene glycol dimethacrylate was developed as a potential body-friendly oral drug delivery system for metronidazole (MZ), a pH-independent drug. MIP performance was evaluated in a simulated oral administration situation, at pHs 2.2 and 7.4. Itaconic acid-based copolymers were synthesized using two different molar ratios of template:monomer:crosslinker (T:M:C), 1:5:25 and 1:5:50, in supercritical carbon dioxide (scCO2) in high yields. Further, impregnation of MZ was performed in scCO2 environment. Morphological and chemical properties of the copolymers produced were assessed by SEM, Morphologi G3 and FTIR analyses. Non-molecularly imprinted polymer (NIP) matrices presented swelling over time in opposition to the molecularly imprinted ones. In the scCO2-impregnation process, MIPs showed a significant molecular recognition towards MZ, presenting higher drug uptake ability with MZ loading of 18-61 wt% in MIPs, compared to 7-20 wt% in NIPs. In vitro drug release experiments presented different release profiles at the different pHs, where MZ-MIPs could release higher amounts of MZ at the lowest pH than at pH 7.4.
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Affiliation(s)
- Gonçalo Marcelo
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Inês C Ferreira
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Raquel Viveiros
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Teresa Casimiro
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
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Viveiros R, Dias FM, Maia LB, Heggie W, Casimiro T. Green strategy to produce large core–shell affinity beads for gravity-driven API purification processes. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Araújo M, Viveiros R, Philippart A, Miola M, Doumett S, Baldi G, Perez J, Boccaccini A, Aguiar-Ricardo A, Verné E. Bioactivity, mechanical properties and drug delivery ability of bioactive glass-ceramic scaffolds coated with a natural-derived polymer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:342-351. [DOI: 10.1016/j.msec.2017.03.169] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 03/07/2017] [Accepted: 03/20/2017] [Indexed: 11/30/2022]
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Development and characterization of an electrochemical biosensor for creatinine detection in human urine based on functional molecularly imprinted polymer. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.068] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ibuprofen loaded PVA/chitosan membranes: A highly efficient strategy towards an improved skin wound healing. Carbohydr Polym 2016; 159:136-145. [PMID: 28038742 DOI: 10.1016/j.carbpol.2016.12.029] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 10/24/2016] [Accepted: 12/12/2016] [Indexed: 02/07/2023]
Abstract
During wound healing, an early inflammation can cause an increase of the wound size and the healing process can be considerably belated if a disproportionate inflammatory response occurs. (S)-ibuprofen (IBP), a non-steroidal anti-inflammatory agent, has been used for muscle healing and to treat venous leg ulcers, but its effect in skin wound healing has not been thoroughly studied thus far. Herein, IBP-β-cyclodextrins carriers were designed to customise the release profile of IBP from poly(vinyl alcohol)/chitosan (PVA/CS) dressings in order to promote a faster skin regeneration. The dressings were produced using supercritical carbon dioxide (scCO2)-assisted technique. In vitro IBP release studies showed that β-cyclodextrins allowed a controlled drug release from the hydrogels which is crucial for their application in wound management. Moreover, the in vivo assays revealed that the presence of PVA/CS membranes containing IBP-β-cyclodextrins carriers avoided scab formation and an excessive inflammation, enabling an earlier skin healing.
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Esteves T, Viveiros R, Bandarra J, Heggie W, Casimiro T, Ferreira FC. Molecularly imprinted polymer strategies for removal of a genotoxic impurity, 4-dimethylaminopyridine, from an active pharmaceutical ingredient post-reaction stream. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.01.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Water-compatible temperature and magnetic dual-responsive molecularly imprinted polymers for recognition and extraction of bisphenol A. J Chromatogr A 2016; 1435:30-8. [DOI: 10.1016/j.chroma.2016.01.040] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 01/13/2016] [Accepted: 01/14/2016] [Indexed: 11/19/2022]
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Campardelli R, Baldino L, Reverchon E. Supercritical fluids applications in nanomedicine. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2015.01.030] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Pircher N, Veigel S, Aigner N, Nedelec JM, Rosenau T, Liebner F. Reinforcement of bacterial cellulose aerogels with biocompatible polymers. Carbohydr Polym 2014; 111:505-13. [PMID: 25037381 PMCID: PMC4118683 DOI: 10.1016/j.carbpol.2014.04.029] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 03/30/2014] [Accepted: 04/10/2014] [Indexed: 12/01/2022]
Abstract
Reinforcement of cellulose aerogels with biopolymers PLA, PCL, CA and PMMA. Interpenetrating and open porous networks of cellulose and biocompatible polymers. scCO2 anti-solvent precipitation and extraction used as core techniques. Cellulose aerogels used as template for the preparation of porous PMMA scaffolds.
Bacterial cellulose (BC) aerogels, which are fragile, ultra-lightweight, open-porous and transversally isotropic materials, have been reinforced with the biocompatible polymers polylactic acid (PLA), polycaprolactone (PCL), cellulose acetate (CA), and poly(methyl methacrylate) (PMMA), respectively, at varying BC/polymer ratios. Supercritical carbon dioxide anti-solvent precipitation and simultaneous extraction of the anti-solvent using scCO2 have been used as core techniques for incorporating the secondary polymer into the BC matrix and to convert the formed composite organogels into aerogels. Uniaxial compression tests revealed a considerable enhancement of the mechanical properties as compared to BC aerogels. Nitrogen sorption experiments at 77 K and scanning electron micrographs confirmed the preservation (or even enhancement) of the surface-area-to-volume ratio for most of the samples. The formation of an open-porous, interpenetrating network of the second polymer has been demonstrated by treatment of BC/PMMA hybrid aerogels with EMIM acetate, which exclusively extracted cellulose, leaving behind self-supporting organogels.
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Affiliation(s)
- N Pircher
- University of Natural Resources and Life Sciences Vienna, Division of Chemistry of Renewables, Konrad-Lorenz-Straße 24, A-3430 Tulln, Vienna, Austria
| | - S Veigel
- University of Natural Resources and Life Sciences Vienna, Department of Wood Science, Konrad-Lorenz-Straße 24, A-3430 Tulln, Vienna, Austria
| | - N Aigner
- University of Natural Resources and Life Sciences Vienna, Division of Chemistry of Renewables, Konrad-Lorenz-Straße 24, A-3430 Tulln, Vienna, Austria
| | - J M Nedelec
- Clermont Université, ENSCCF, Institute of Chemistry of Clermont-Ferrand, BP 10448, 63000, Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, 24 av. des Landais, 63171 Aubière, France
| | - T Rosenau
- University of Natural Resources and Life Sciences Vienna, Division of Chemistry of Renewables, Konrad-Lorenz-Straße 24, A-3430 Tulln, Vienna, Austria
| | - F Liebner
- University of Natural Resources and Life Sciences Vienna, Division of Chemistry of Renewables, Konrad-Lorenz-Straße 24, A-3430 Tulln, Vienna, Austria.
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Shi W, He G, Liu H, Ju J, Wang T, Li X, Nie F. Fabrication of polyetherimide microporous membrane using supercritical CO2 technology and its application for affinity membrane matrix. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2013.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ferreira JP, Viveiros R, Lourenço A, Soares da Silva M, Rosatella A, Casimiro T, Afonso CAM. Integrated desulfurization of diesel by combination of metal-free oxidation and product removal by molecularly imprinted polymers. RSC Adv 2014. [DOI: 10.1039/c4ra11666f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The desulfurization of diesel containing dibenzothiophene (DBT) is achieved based on the combination of Brønsted acid catalyzed oxidation of DBT by H2O2 and the selective removal of the oxidized products using a molecularly imprinted polymer (MIP) produced in supercritical carbon dioxide.
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Affiliation(s)
- Joana P. Ferreira
- Instituto de Investigação do Medicamento (iMed.ULisboa)
- Faculty of Pharmacy
- University of Lisbon
- Lisboa, Portugal
| | - Raquel Viveiros
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- 2829-516 Caparica, Portugal
| | - Anita Lourenço
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- 2829-516 Caparica, Portugal
| | - Mara Soares da Silva
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- 2829-516 Caparica, Portugal
| | - Andreia Rosatella
- Instituto de Investigação do Medicamento (iMed.ULisboa)
- Faculty of Pharmacy
- University of Lisbon
- Lisboa, Portugal
| | - Teresa Casimiro
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- 2829-516 Caparica, Portugal
| | - Carlos A. M. Afonso
- Instituto de Investigação do Medicamento (iMed.ULisboa)
- Faculty of Pharmacy
- University of Lisbon
- Lisboa, Portugal
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Shi W, He G, Zhao W, Zhang L, Du L, Wang Y, Qin X. Effects of solvent and nonsolvent diffusion velocities on the morphology of cellular polyetherimide membranes prepared using supercritical CO2 phase inversion. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2013.08.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Synthesis and characterization of high selective molecularly imprinted polymers for bisphenol A and 2,4-dichlorophenoxyacetic acid by using supercritical fluid technology. POLYMER 2013. [DOI: 10.1016/j.polymer.2012.11.079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Soares da Silva M, Viveiros R, Aguiar-Ricardo A, Bonifácio VDB, Casimiro T. Supercritical fluid technology as a new strategy for the development of semi-covalent molecularly imprinted materials. RSC Adv 2012. [DOI: 10.1039/c2ra20426f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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