1
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The Effect of Alkali Iodide Salts in the Inclusion Process of Phenolphthalein in β-Cyclodextrin: A Spectroscopic and Theoretical Study. Molecules 2023; 28:molecules28031147. [PMID: 36770813 PMCID: PMC9920586 DOI: 10.3390/molecules28031147] [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: 12/13/2022] [Revised: 01/13/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
The formation of the inclusion complex between β-cyclodextrin (CD) and phenolphthalein (PP) was investigated by means of UV-Vis and FT-IR spectroscopies. The thermodynamic parameters were calculated in the absence and presence of LiI, KI, NaI and CsI iodide salts. The enthalpy change during the formation was found to be negative for all solutions with iodide salts. The enthalpy change was found to decrease in the sequence no salt > NaI > KI> CsI > LiI. Moreover, it was observed that with increasing salt concentration enthalpy decreases monotonically. The interaction between the two molecules was mostly attributed to hydrogen bonding and Van der Waals interactions. Thermodynamic properties revealed that electrostatic forces also contribute when LiI is present in solutions. A molecular docking study was performed to elucidate the docking between phenolphthalein and cyclodextrin. The FT-IR spectra of CD, PP and the CD-PP complex were recorded to establish the formation of the inclusion complex. Semi-empirical and DFT methods were utilized to study theoretically the complexation process and calculate the IR vibrational spectra. The adequate agreement between theoretical and experimental results supports the proposed structural model for the CD-PP complexation.
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2
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Sharma K, Sadhanala HK, Mastai Y, Porat Z, Gedanken A. Sonochemically Prepared BSA Microspheres as Adsorbents for the Removal of Organic Pollutants from Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9927-9938. [PMID: 34351165 DOI: 10.1021/acs.langmuir.1c01716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This work investigates, for the first time, the application of sonochemically prepared bovine serum albumin (BSA) microspheres (BSAMS) as adsorbents of industrial organic pollutant dyes, such as rhodamine B (RhB), rhodamine 6G (Rh6G), and methylene blue (MB). These dyes also serve as model compounds for other organic pollutants such as bisphenol A and 2-nitrophenol. Adsorption kinetics of the dyes by the BSAMS was studied using pseudo-first-order (PFO) and pseudo-second-order (PSO) kinetic models. It was found that RhB follows PFO, with an adsorption capacity, qe,cal, of 7.9 mg/g, which was closer to the experimental adsorption capacity of qe,exp. of 7.6 mg/g. However, MB and Rh6G were controlled by PSO kinetics, with a qe,cal of 5.6 mg/g for MB and 6.6 mg/g for Rh6G, closer to the experimental adsorption capacity of 5.7 and 6.4 mg/g, respectively. The intraparticle diffusion (ID) model applied to the three dyes indicated multi-linearity with ID as the rate-limiting step in the adsorption process. Furthermore, the adsorption equilibria for each of the organic pollutants were studied through various isotherm models such as Langmuir, Freundlich, Temkin, and Halsey, which indicated physical interaction between the BSAMS and the dye pollutants, thus suggesting the applicability of the BSAMS as pollutant adsorbent materials. It was found that the BSAMS can effectively remove RhB, MB, and Rh6G from wastewater with efficiencies of 95.5, 83.3, and 97.9%, respectively.
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Affiliation(s)
- Kusha Sharma
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Hari Krishna Sadhanala
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Yitzhak Mastai
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Ze'ev Porat
- Department of Civil and Environmental Engineering, Ben-Gurion University of the Negev, Be'er-Sheva 84105, Israel
- Department of Chemistry, Nuclear Research Center-Negev, Be'er-Sheva 84190, Israel
| | - Aharon Gedanken
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
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3
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Neto WS, Dutra GVS, Valadares LF, Souza FG, Sousa MH, Machado F. Experimental Evaluation of the Miniemulsion Polymerization of Vinyl Pivalate: The role of the Main Process Variables. MACROMOL REACT ENG 2020. [DOI: 10.1002/mren.202000049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Weslany Silvério Neto
- Instituto de Química Universidade de Brasília Campus Universitário Darcy Ribeiro CEP: Brasília DF 70904–970 Brazil
| | - Gabriel Victor Simões Dutra
- Instituto de Química Universidade de Brasília Campus Universitário Darcy Ribeiro CEP: Brasília DF 70904–970 Brazil
| | | | - Fernando Gomes Souza
- Instituto de Macromoléculas Profa. Eloisa Mano Universidade Federal do Rio de Janeiro CP 68525, CEP Rio de Janeiro RJ 21941–598 Brazil
| | - Marcelo Henrique Sousa
- Faculdade de Ceilândia Universidade de Brasília Campus Universitário–Centro Metropolitano CEP: 72220–275, Ceilândia Sul Brasília DF Brazil
| | - Fabricio Machado
- Instituto de Química Universidade de Brasília Campus Universitário Darcy Ribeiro CEP: Brasília DF 70904–970 Brazil
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4
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Dogan YE, Satilmis B, Uyar T. Crosslinked PolyCyclodextrin/PolyBenzoxazine electrospun microfibers for selective removal of methylene blue from an aqueous system. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Azevedo GD, Pinto JCCDS. Particle size distributions of P(VAc-co-MMA) beads produced through nonconventional suspension copolymerizations. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.07.097] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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6
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Wang Z, Cui F, Pan Y, Hou L, Zhang B, Li Y, Zhu L. Hierarchically micro-mesoporous β-cyclodextrin polymers used for ultrafast removal of micropollutants from water. Carbohydr Polym 2019; 213:352-360. [DOI: 10.1016/j.carbpol.2019.03.021] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 01/26/2023]
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7
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Zhang Y, Cunningham MF, Smeets NMB, Dubé MA. Increasing Starch Nanoparticle Content in Emulsion Polymer Latexes. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00332] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yujie Zhang
- Department of Chemical and Biological Engineering, Centre for Catalysis Research and Innovation, University of Ottawa, 161 Louis Pasteur Private, Ottawa, Ontario K1N 6N5, Canada
| | - Michael F. Cunningham
- Department of Chemical Engineering, Queen’s University, 99 University Avenue, Kingston, Ontario K7L 3N6, Canada
| | | | - Marc A. Dubé
- Department of Chemical and Biological Engineering, Centre for Catalysis Research and Innovation, University of Ottawa, 161 Louis Pasteur Private, Ottawa, Ontario K1N 6N5, Canada
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8
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Abstract
The substitution of petroleum-based synthetic polymers in latex formulations with sustainable and/or bio-based sources has increasingly been a focus of both academic and industrial research. Emulsion polymerization already provides a more sustainable way to produce polymers for coatings and adhesives, because it is a water-based process. It can be made even more attractive as a green alternative with the addition of starch, a renewable material that has proven to be extremely useful as a filler, stabilizer, property modifier and macromer. This work provides a critical review of attempts to modify and incorporate various types of starch in emulsion polymerizations. This review focusses on the method of initiation, grafting mechanisms, starch feeding strategies and the characterization methods. It provides a needed guide for those looking to modify starch in an emulsion polymerization to achieve a target grafting performance or to incorporate starch in latex formulations for the replacement of synthetic polymers.
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Hilschmann J, Wenz G, Kali G. One-pot synthesis of block-copolyrotaxanes through controlled rotaxa-polymerization. Beilstein J Org Chem 2017; 13:1310-1315. [PMID: 28781696 PMCID: PMC5530718 DOI: 10.3762/bjoc.13.127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 06/14/2017] [Indexed: 11/23/2022] Open
Abstract
The aqueous reversible addition fragmentation chain-transfer (RAFT) copolymerization of isoprene and bulky comonomers, an acrylate and an acrylamide in the presence of methylated β-cyclodextrin was employed for the first time to synthesize block-copolyrotaxanes. RAFT polymerizations started from a symmetrical bifunctional trithiocarbonate and gave rise to triblock-copolymers where the outer polyacrylate/polyacrylamide blocks act as stoppers for the cyclodextrin rings threaded onto the inner polyisoprene block. Statistical copolyrotaxanes were synthesized by RAFT polymerization as well. RAFT polymerization conditions allow control of the composition as well as the sequence of the constituents of the polymer backbone which further effects the CD content and the aqueous solubility of the polyrotaxane.
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Affiliation(s)
- Jessica Hilschmann
- Organic Macromolecular Chemistry, Saarland University, Campus C4.2, 66123 Saarbrücken, Germany
| | - Gerhard Wenz
- Organic Macromolecular Chemistry, Saarland University, Campus C4.2, 66123 Saarbrücken, Germany
| | - Gergely Kali
- Organic Macromolecular Chemistry, Saarland University, Campus C4.2, 66123 Saarbrücken, Germany
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Keleş T, Akyüz D, Biyiklioglu Z, Koca A. Electropolymerization of Metallophthalocyanines Carrying Redox Active Metal Centers and their Electrochemical Pesticide Sensing Application. ELECTROANAL 2017. [DOI: 10.1002/elan.201700249] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Turgut Keleş
- Department of Chemistry; Faculty of Science, Karadeniz Technical University; Trabzon Turkey
| | - Duygu Akyüz
- Department of Chemistry, Faculty of Science and Letters; Marmara University; Istanbul Turkey
| | - Zekeriya Biyiklioglu
- Department of Chemistry; Faculty of Science, Karadeniz Technical University; Trabzon Turkey
| | - Atıf Koca
- Department of Chemical Engineering, Faculty of Engineering; Marmara University; Istanbul Turkey
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11
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Li J, Lam ATL, Toh JPW, Reuveny S, Oh SKW, Birch WR. Tunable Volumetric Density and Porous Structure of Spherical Poly-ε-caprolactone Microcarriers, as Applied in Human Mesenchymal Stem Cell Expansion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3068-3079. [PMID: 28221044 DOI: 10.1021/acs.langmuir.7b00125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polymeric microspheres may serve as microcarrier (MC) matrices, for the expansion of anchorage-dependent stem cells. They require surface properties that promote both initial cell adhesion and the subsequent spreading of cells, which is a prerequisite for successful expansion. When implemented in a three-dimensional culture environment, under agitation, their suspension under low shear rates depends on the MCs having a modest negative buoyancy, with a density of 1.02-1.05 g/cm3. Bioresorbable poly-ε-caprolactone (PCL), with a density of 1.14 g/cm3, requires a reduction in volumetric density, for the microspheres to achieve high cell viability and yields. Uniform-sized droplets, from solutions of PCL dissolved in dichloromethane (DCM), were generated by coaxial microfluidic geometry. Subsequent exposure to ethanol rapidly extracted the DCM solvent, solidifying the droplets and yielding monodisperse microspheres with a porous structure, which was demonstrated to have tunable porosity and a hollow inner core. The variation in process parameters, including the molecular weight of PCL, its concentration in DCM, and the ethanol concentration, served to effectively alter the diffusion flux between ethanol and DCM, resulting in a broad spectrum of volumetric densities of 1.04-1.11 g/cm3. The solidified microspheres are generally covered by a smooth thin skin, which provides a uniform cell culture surface and masks their internal porous structure. When coated with a cationic polyelectrolyte and extracellular matrix protein, monodisperse microspheres with a diameter of approximately 150 μm and densities ranging from 1.05-1.11 g/cm3 are capable of supporting the expansion of human mesenchymal stem cells (hMSCs). Validation of hMSC expansion was carried out with a positive control of commercial Cytodex 3 MCs and a negative control of uncoated low-density PCL MCs. Static culture conditions generated more than 70% cell attachment and similar yields of sixfold cell expansion on all coated MCs, with poor cell attachment and growth on the negative control. Under agitation, coated porous microspheres, with a low density of 1.05 g/cm3, achieved robust cell attachment and resulted in high cell yields of ninefold cell expansion, comparable with those generated by commercial Cytodex 3 MCs.
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Affiliation(s)
- Jian Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, 138634, Singapore
| | - Alan Tin-Lun Lam
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research) , 20 Biopolis Way, #06-01, 138668, Singapore
| | - Jessica Pei Wen Toh
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, 138634, Singapore
| | - Shaul Reuveny
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research) , 20 Biopolis Way, #06-01, 138668, Singapore
| | - Steve Kah-Weng Oh
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research) , 20 Biopolis Way, #06-01, 138668, Singapore
| | - William R Birch
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, 138634, Singapore
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12
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Affiliation(s)
- Jessica Hilschmann
- Organic Macromolecular Chemistry, Saarland University,
Campus Saarbrücken C 4.2, 66123 Saarbrücken, Germany
| | - Gergely Kali
- Organic Macromolecular Chemistry, Saarland University,
Campus Saarbrücken C 4.2, 66123 Saarbrücken, Germany
| | - Gerhard Wenz
- Organic Macromolecular Chemistry, Saarland University,
Campus Saarbrücken C 4.2, 66123 Saarbrücken, Germany
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13
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Cohen S, Kolitz-Domb M, Haham H, Gelber C, Margel S. Engineering of UV-absorbing polypropylene films containing poly(2-(2′-hydroxy-5′-methacryloxyethylphenyl)-2H-benzotriazole) nanoparticles. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.3994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sarit Cohen
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Michal Kolitz-Domb
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Hai Haham
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Chen Gelber
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Shlomo Margel
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
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14
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Fabrication of uniform-sized poly-ɛ-caprolactone microspheres and their applications in human embryonic stem cell culture. Biomed Microdevices 2016; 17:105. [PMID: 26458560 DOI: 10.1007/s10544-015-0010-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of liquefied poly-ɛ-caprolactone (PCL) droplets by means of a microfluidic device results in uniform-sized microspheres, which are validated as microcarriers for human embryonic stem cell culture. Formed droplet size and size distribution, as well as the resulting PCL microsphere size, are correlated with the viscosity and flow rate ratio of the dispersed (Q d) and continuous (Q c) phases. PCL in dichloromethane increases its viscosity with concentration and molecular weight. Higher viscosity and Q d/Q c lead to the formation of larger droplets, within two observed formation modes: dripping and jetting. At low viscosity of dispersed phase and Q d/Q c, the microfluidic device is operated in dripping mode, which generates droplets and microspheres with greater size uniformity. Solutions with lower molecular weight PCL have lower viscosity, resulting in a wider concentration range for the dripping mode. When coated with extracellular matrix (ECM) proteins, the fabricated PCL microspheres are demonstrated capable of supporting the expansion of human embryonic stem cells.
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15
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Encapsulation of paclitaxel in ultra-fine nanoparticles of acrylic/styrene terpolymer for controlled release. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3752-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Yu S, Guo Z. Superhydrophobic surfaces based on polypyrrole with corrosion resistance and the separation of oil/water mixture properties. RSC Adv 2015. [DOI: 10.1039/c5ra19632a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We demonstrated a novel and simple two-step design to utilize conductive polymer PPy to produce a superhydrophobic film on various substrates with superb corrosion resistance.
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Affiliation(s)
- Shen Yu
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan
- P. R. China
- State Key Laboratory of Solid Lubrication
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan
- P. R. China
- State Key Laboratory of Solid Lubrication
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17
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Nagy ZM, Molnár M, Fekete-Kertész I, Molnár-Perl I, Fenyvesi É, Gruiz K. Removal of emerging micropollutants from water using cyclodextrin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 485-486:711-719. [PMID: 24775808 DOI: 10.1016/j.scitotenv.2014.04.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 04/01/2014] [Accepted: 04/01/2014] [Indexed: 04/15/2023]
Abstract
Small scale laboratory experiment series were performed to study the suitability of a cyclodextrin-based sorbent (ß-cyclodextrin bead polymer, BCDP) for modelling the removal of micropollutants from drinking water and purified waste water using simulated inflow test solutions containing target analytes (ibuprofen, naproxen, ketoprofen, bisphenol-A, diclofenac, β-estradiol, ethinylestradiol, estriol, cholesterol at 2-6 μg/L level). This work was focused on the preliminary evaluation of BCDP as a sorbent in two different model systems (filtration and fluidization) applied for risk reduction of emerging micropollutants. For comparison different filter systems combined with various sorbents (commercial filter and activated carbon) were applied and evaluated in the filtration experiment series. The spiked test solution (inflow) and the treated outflows were characterized by an integrated methodology including chemical analytical methods gas chromatography-tandem mass spectrometry (GC-MS/MS) and various environmental toxicity tests to determine the efficiency and selectivity of the applied sorbents. Under experimental conditions the cyclodextrin-based filters used for purification of drinking water in most cases were able to absorb more than 90% of the bisphenol-A and of the estrogenic compounds. Both the analytical chemistry and toxicity results showed efficient elimination of these pollutants. Especially the toxicity of the filtrate decreased considerably. Laboratory experiment modelling post-purification of waste water was also performed applying fluidization technology by ß-cyclodextrin bead polymer. The BCDP removed efficiently from the spiked test solution most of the micropollutants, especially the bisphenol-A (94%) and the hormones (87-99%) The results confirmed that the BCDP-containing sorbents provide a good solution to water quality problems and they are able to decrease the load and risk posed by micropollutants to the water systems.
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Affiliation(s)
- Zsuzsanna Magdolna Nagy
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary.
| | - Mónika Molnár
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary
| | - Ildikó Fekete-Kertész
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary
| | - Ibolya Molnár-Perl
- Cooperative Research Center for Environmental Sciences, Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Éva Fenyvesi
- CycloLab Cyclodextrin R&D Laboratory Ltd., Illatos út 7., H-1097 Budapest, Hungary
| | - Katalin Gruiz
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary
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18
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An J, Cui JF, Zhu ZQ, Liang WD, Pei CJ, Sun HX, Yang BP, Li A. Conductive polymer-coated mesh films with tunable surface wettability for separation of oils and organics from water. J Appl Polym Sci 2014. [DOI: 10.1002/app.40759] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jin An
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
| | - Jin-Feng Cui
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
| | - Zhao-Qi Zhu
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
| | - Wei-Dong Liang
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
| | - Chun-Juan Pei
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
| | - Han-Xue Sun
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
| | - Bao-Ping Yang
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
| | - An Li
- Department of Chemical Engineering; College of Petrochemical Engineering; Lanzhou University of Technology; Lanzhou People's Republic of China
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19
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Cyclodextrin containing biodegradable particles: From preparation to drug delivery applications. Int J Pharm 2014; 461:351-66. [DOI: 10.1016/j.ijpharm.2013.12.004] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 12/05/2013] [Accepted: 12/07/2013] [Indexed: 01/11/2023]
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20
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Wu L, Zhang J, Li B, Wang A. Mechanical- and oil-durable superhydrophobic polyester materials for selective oil absorption and oil/water separation. J Colloid Interface Sci 2014; 413:112-7. [DOI: 10.1016/j.jcis.2013.09.028] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/10/2013] [Accepted: 09/12/2013] [Indexed: 10/26/2022]
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21
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Andersen E, Rácz I, Erös A, Bánhegyi G, Fenyvesi É, Takács E. Development of synthetic and natural mineral based adsorptive and filter media containing cyclodextrin moieties. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1757-899x/47/1/012038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Concheiro A, Alvarez-Lorenzo C. Chemically cross-linked and grafted cyclodextrin hydrogels: from nanostructures to drug-eluting medical devices. Adv Drug Deliv Rev 2013; 65:1188-203. [PMID: 23631979 DOI: 10.1016/j.addr.2013.04.015] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 04/15/2013] [Accepted: 04/22/2013] [Indexed: 12/13/2022]
Abstract
The unique ability of cyclodextrins (CDs) to form inclusion complexes can be transmitted to polymeric networks in which CDs are chemically grafted or cross-linked. Combination of CDs and hydrogels in a single material leads to synergic properties: the hydrophilic network enhances biocompatibility and prevents dilution in the physiological medium increasing the stability of the inclusion complexes, while CDs finely tune the mechanical features and the stimuli-responsiveness and provide affinity-based regulation of drug loading and release. Therefore, CD-functionalized materials are opening new perspectives in pharmacotherapy, emerging as advanced delivery systems (DDS) for hydrophobic and hydrophilic drugs to be administered via almost any route. Medical devices (catheters, prosthesis, vascular grafts, bone implants) can also benefit from surface grafting or thermofixation of CDs. The present review focuses on the approaches tested to synthesize nano- to macro-size covalently cross-linked CD networks: i) direct cross-linking through condensation with di- or multifunctional reagents, ii) copolymerization of CD derivatives with acrylic/vinyl monomers, and iii) grafting of CDs to preformed medical devices. Examples of the advantages of having the CDs chemically bound among themselves and to substrates are provided and their applicability in therapeutics discussed.
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Fourmentin S, Ciobanu A, Landy D, Wenz G. Space filling of β-cyclodextrin and β-cyclodextrin derivatives by volatile hydrophobic guests. Beilstein J Org Chem 2013; 9:1185-91. [PMID: 23843912 PMCID: PMC3701372 DOI: 10.3762/bjoc.9.133] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 05/31/2013] [Indexed: 11/23/2022] Open
Abstract
The inclusion of volatile derivatives of benzene and cyclohexane in β-cyclodextrin (β-CD), hydroxypropyl-β-CD, and hydrophilic β-CD-thioethers was investigated by static headspace gas chromatography (HS-GC) and molecular modelling. The obtained binding constants strongly increase with the amount of space filling of the CD cavity and the salt concentration. β-CD thioethers show a 3–10 times higher binding potential than native β-CD.
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Affiliation(s)
- Sophie Fourmentin
- University Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
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Effects of simultaneous chemical cross-linking and physical filling on separation performances of PU membranes. IRANIAN POLYMER JOURNAL 2013. [DOI: 10.1007/s13726-013-0161-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang Y, Zhao Y, Han B. Preparation of Tris(2-aminoethyl)amine-Cross-Linked Cyclodextrin-Based Porous Nanospheres and Their Application as Drug Delivery Systems. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201300296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Selective removal of phenol by spherical particles of α-, β- and γ-cyclodextrin polymers: kinetics and isothermal equilibrium. Front Chem Sci Eng 2013. [DOI: 10.1007/s11705-013-1318-5] [Citation(s) in RCA: 5] [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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Wen Q, Di J, Jiang L, Yu J, Xu R. Zeolite-coated mesh film for efficient oil–water separation. Chem Sci 2013. [DOI: 10.1039/c2sc21772d] [Citation(s) in RCA: 335] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Wenz G. Influence of intramolecular hydrogen bonds on the binding potential of methylated β-cyclodextrin derivatives. Beilstein J Org Chem 2012; 8:1890-5. [PMID: 23209527 PMCID: PMC3511027 DOI: 10.3762/bjoc.8.218] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 10/16/2012] [Indexed: 01/01/2023] Open
Abstract
Various heptasubstituted derivatives of β-cyclodextrin (β-CD) bearing 1, 2 and 3 methyl substituents per glucose unit were synthesized by regioselective methods. Binding free energies and binding enthalpies of these hosts towards 4-tert-butylbenzoate and adamantane-1-carboxylate were determined by isothermal titration microcalorimetry (ITC). It was found that methyl substituents at the secondary positions of β-CD lead to a tremendous reduction of the binding potential, while methylation at the primary positions significantly improved binding. Stabilizing intramolecular hydrogen bonds between the glucose units were made responsible for the high binding potentials of those β-CD derivatives that possess secondary hydroxy groups.
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Affiliation(s)
- Gerhard Wenz
- Organic Macromolecular Chemistry, Saarland University, Campus Saarbrücken C4.2, 66123 Saarbrücken, Germany
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Davarpanah L, Vahabzadeh F. Formation of oil-in-water (O/W) pickering emulsions via complexation between β-cyclodextrin and selected organic solvents. STARCH-STARKE 2012. [DOI: 10.1002/star.201200027] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Albelda MT, Frías JC, García-España E, Schneider HJ. Supramolecular complexation for environmental control. Chem Soc Rev 2012; 41:3859-77. [PMID: 22441360 DOI: 10.1039/c2cs35008d] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Supramolecular complexes offer a new and efficient way for the monitoring and removal of many substances emanating from technical processes, fertilization, plant and animal protection, or e.g. chemotherapy. Such pollutants range from toxic or radioactive metal ions and anions to chemical side products, herbicides, pesticides to drugs including steroids, and include degradation products from natural sources. The applications involve usually fast and reversible complex formation, due to prevailing non-covalent interactions. This is of importance for sensing as well as for separation techniques, where the often expensive host compounds can then be reused almost indefinitely. Immobilization of host compounds, e.g. on exchange resins or on membranes, and their implementation in smart new materials hold particular promise. The review illustrates how the design of suitable host compounds in combination with modern sensing and separation methods can contribute to solve some of the biggest problems facing chemistry, which arise from the everyday increasing pollution of the environment.
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Affiliation(s)
- M Teresa Albelda
- Departament de Química Inorgánica, ICMol, Universitat de València, C/Catedrático José Beltrán, 2. Paterna, Spain
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Moya-Ortega MD, Alvarez-Lorenzo C, Concheiro A, Loftsson T. Cyclodextrin-based nanogels for pharmaceutical and biomedical applications. Int J Pharm 2012; 428:152-63. [PMID: 22388054 DOI: 10.1016/j.ijpharm.2012.02.038] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 02/22/2012] [Accepted: 02/23/2012] [Indexed: 11/18/2022]
Abstract
Hydrophilic nanogels combine the advantages of hydrogels with certain advantages that are inherent in their nanoscale size. Similar to macrogels, nanogels can contain and protect drugs and regulate their release by incorporating high-affinity functional groups, stimuli-responsive conformations and biodegradable bonds into the polymer network. Similar to nanoparticles, nanogels can easily be administered in liquid form for parenteral drug delivery. The nanoscale size of nanogels gives them a high specific surface area that is available for further bioconjugation of active targeting agents. Biodistribution and drug release can be modulated through size adjustments. The incorporation of hydrophilic cyclodextrin (CD) moieties into the polymeric network of the nanogels provides them with a drug loading and release mechanism that is based on the formation of inclusion complexes without decreasing the hydrophilicity of the network. The covalent attachment of CD molecules to the chemically crosslinked networks may enable the CDs to display fully their ability to form complexes, while simultaneously preventing drug release upon media dilution. The preparation, characterization and advantages for pharmaceutical and biomedical applications of CD-based nanogels are reviewed in this article.
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Affiliation(s)
- Maria D Moya-Ortega
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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Cross-linked hydroxypropyl-β-cyclodextrin and γ-cyclodextrin nanogels for drug delivery: Physicochemical and loading/release properties. Carbohydr Polym 2012. [DOI: 10.1016/j.carbpol.2011.11.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Landy D, Mallard I, Ponchel A, Monflier E, Fourmentin S. Cyclodextrins for Remediation Technologies. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/978-94-007-2442-6_2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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