1
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Tortuosity of hierarchical porous materials: Diffusion experiments and random walk simulations. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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Nguyen KL, Wernert V, Denoyel R. Effect of the polydispersity on the dispersion of polymers through silicas having different morphologies (fully porous and core-shell particles and monoliths). J Chromatogr A 2021; 1641:461985. [PMID: 33611113 DOI: 10.1016/j.chroma.2021.461985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 11/26/2022]
Abstract
The effect of the polydispersity of polystyrenes on the dispersion through silicas having different morphologies (fully porous, core-shell particles and monoliths) was investigated. The heights equivalent to a theoretical plate (HETP) of those columns were measured for a small molecule (toluene) and a series of polystyrenes of different sizes in non-adsorbing conditions. The different contributions to the total HETP including polydispersity were determined experimentally. The longitudinal diffusion and the mass transfer resistance term were obtained from peak parking experiments. The eddy dispersion was obtained from models and experiments. The effect of polydispersity on the HETP values (Hpoly) can thus be calculated from the total HETP by substraction of the other contributions. The results were compared to the Knox model which surestimates the Hpoly values for porous and core-shell particles which is usually explained by an overestimation of the polydispersity index (PDI) given by the manufacturer. The PDI of two polymers (P02, Mw= 690 g.mol-1 and P03, Mw=1380 g.mol-1) was verified by liquid chromatography by separating each fraction of the polymer on the silica columns by using adsorbing conditions which are obtained with a mixture of heptane and THF. The PDI obtained are comparable to the PDI given by the manufacturer meaning that the assumptions made by Knox are not entirely valid. A direct method is proposed in this paper in order to determine Hpoly. In this method the excess of spreading as compared with a polymer with only one size corresponding to the average size is studied assuming the polymer size distribution is gaussian. The Hpoly values obtained by the direct method are comparable to the experimental values.
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Affiliation(s)
- Khac-Long Nguyen
- Aix-Marseille Université, CNRS, MADIREL, UMR 7246, Centre Saint-Jérôme, F-13397 Marseille cedex 20, France; Hanoi University of Mining and Geology, 18 Vien Street, Bac Tu Liem, Hanoi, Vietnam
| | - Véronique Wernert
- Aix-Marseille Université, CNRS, MADIREL, UMR 7246, Centre Saint-Jérôme, F-13397 Marseille cedex 20, France.
| | - Renaud Denoyel
- Aix-Marseille Université, CNRS, MADIREL, UMR 7246, Centre Saint-Jérôme, F-13397 Marseille cedex 20, France
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3
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Effective ion mobility in anion exchange ionomers: Relations with hydration, porosity, tortuosity, and percolation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118622] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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4
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Ji B, Yi G, Zhang K, Zhang Y, Gui Y, Gao D, Zeng J, Wang L, Xia Z, Fu Q. Nanoscale Hierarchically Micro- and Mesoporous Metal-Organic Frameworks for High-Resolution and High-Efficiency Capillary Electrochromatographic Separation. Anal Chem 2020; 92:15655-15662. [PMID: 33175499 DOI: 10.1021/acs.analchem.0c04074] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Metal-organic frameworks (MOFs) have been widely applied in a variety of fields. However, most of the developed MOFs are micrometer scale in crystal size and contain only micropores, which will limit the mass transport and diffusion of various analytes into their internal interaction sites, severely restricting the potential of MOFs in separation science. Herein, nanoscale hierarchically porous MOFs (NHP-MOFs) were first explored as a novel MOF-based stationary phase with excellent mass transfer performance and abundant accessible interaction sites for high-performance chromatographic separation. As a proof-of-concept demonstration, the nanoscale hierarchically micro- and mesoporous UiO-66 (NHP-UiO-66) was firmly immobilized on the capillary inner surface and utilized as the porous stationary phase for high-resolution and high-efficiency electrochromatographic separation. A wide range of low-, medium-, and high-molecular-weight analytes, including substituted benzenes, chlorobenzenes, polycyclic aromatic hydrocarbons, nucleosides, polypeptides, and proteins were all separated well on a NHP-UiO-66-coated column with excellent resolution and repeatability, exhibiting significantly improved column efficiency and separation ability compared to those of a microporous UiO-66-modified column. The maximum column efficiencies for all the six kinds of analytes reached up to 1.2 × 105 plates/m, and the relative standard deviations of the migration times of substituted benzenes for intraday, interday, and column-to-column were all lower than 5.8%. These results reveal that NHP-MOFs can effectively combine the advantages of the high specific surface area of microporous MOFs and the excellent mass transfer performance and abundant accessible interaction sites of NHP materials, possessing great prospect for high-performance chromatographic separation.
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Affiliation(s)
- Baian Ji
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Gaoyi Yi
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Kailian Zhang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yuanhua Zhang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yuanqi Gui
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Die Gao
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Jing Zeng
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Lujun Wang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Zhining Xia
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Qifeng Fu
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
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5
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Neil CW, Telfeyan K, Sauer KB, Ware SD, Reimus P, Boukhalfa H, Roback R, Brug WP. Iodine effective diffusion coefficients through volcanic rock: Influence of iodine speciation and rock geochemistry. JOURNAL OF CONTAMINANT HYDROLOGY 2020; 235:103714. [PMID: 32987236 DOI: 10.1016/j.jconhyd.2020.103714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 09/08/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Accurate prediction of the subsurface transport of iodine species is important for the assessment of long-term nuclear waste repository performance, as well as monitoring compliance with the Comprehensive Nuclear-Test-Ban Treaty, given that radioiodine decays into radioxenon. However, the transport of iodine through intact geologic media is not well understood, compromising our ability to assess risk associated with radioiodine migration. The current study's goal is to quantify the matrix diffusion of iodine species through saturated volcanic rock, with particular attention paid to the redox environment and potential speciation changes. Diffusion experiments were run for iodide through lithophysae-rich lava, lithophysae-poor lava, and welded tuff, whereas iodate diffusion was studied through welded tuff. Iodine transport was compared with a conservative tracer, HDO, and effective diffusion coefficients were calculated. Likely due to a combination of size and anion exclusion effects, iodine species diffused more slowly than the conservative tracer through all rock types tested. Furthermore, oxidation of iodide to iodate was observed in the lithophysae-poor lava, affecting transport. Results provide much needed data for subsurface transport models that predict radioiodine migration from underground sources, and indicate the pressing need for geochemical and redox interactions to be incorporated into these models.
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Affiliation(s)
- Chelsea W Neil
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
| | - Katherine Telfeyan
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Kirsten B Sauer
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - S Doug Ware
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Paul Reimus
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Hakim Boukhalfa
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Robert Roback
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - W Patrick Brug
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
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6
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Song H, Desmet G, Cabooter D. A Methodology for the Estimation and Modelling of the Obstruction Factor in the Expression for Mesopore Diffusion in Reversed-Phase Liquid Chromatography Particles. J Chromatogr A 2020; 1625:461285. [DOI: 10.1016/j.chroma.2020.461285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 01/19/2023]
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7
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Hochstrasser J, Svidrytski A, Höltzel A, Priamushko T, Kleitz F, Wang W, Kübel C, Tallarek U. Morphology-transport relationships for SBA-15 and KIT-6 ordered mesoporous silicas. Phys Chem Chem Phys 2020; 22:11314-11326. [PMID: 32406894 DOI: 10.1039/d0cp01861a] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Quantitative morphology-transport relationships are derived for ordered mesoporous silicas through direct numerical simulation of hindered diffusion in realistic geometrical models of the pore space obtained from physical reconstruction by electron tomography. We monitor accessible porosity and effective diffusion coefficients resulting from steric and hydrodynamic interactions between passive tracers and the pore space confinement as a function of λ = dtracer/dmeso (ratio of tracer diameter to mean mesopore diameter) in SBA-15 (dmeso = 9.1 nm) and KIT-6 (dmeso = 10.5 nm) silica samples. For λ = 0, the pointlike tracers reproduce the true diffusive tortuosities. For 0 ≤λ < 0.5, the derived hindrance factor quantifies the extent to which diffusion of finite-size tracers through the materials is hindered compared with free diffusion in the bulk liquid. The hindrance factor connects the transport properties of the ordered silicas to their mesopore space morphologies and enables quantitative comparison with random mesoporous silicas. Key feature of the ordered silicas is a narrow, symmetric mesopore size distribution (∼10% relative standard deviation), which engenders a sharper decline of the accessible-porosity window with increasing λ than observed for random silicas with their wide, asymmetric mesopore size distributions. As support structures, ordered mesoporous silicas should offer benefits for applications where spatial confinement effects and molecular size-selectivity are of prime importance. On the other hand, random mesoporous silicas enable higher diffusivities for λ > 0.3, because the larger pores carry most of the diffusive flux and keep pathways open when smaller pores have closed off.
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Affiliation(s)
- Janika Hochstrasser
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany.
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8
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Donath A, Kantzas A, Bryant S. Opportunities for Particles and Particle Suspensions to Experience Enhanced Transport in Porous Media: A Review. Transp Porous Media 2019. [DOI: 10.1007/s11242-019-01256-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Maier RS, Schure MR. Transport properties and size exclusion effects in wide-pore superficially porous particles. Chem Eng Sci 2018; 185:243-255. [PMID: 30613108 DOI: 10.1016/j.ces.2018.03.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The effects of hydrodynamic radius on the transport of solute molecules in packed beds of wide-pore superficially porous particles (SPP) are studied using pore-scale simulation. The free molecular diffusion rate varies with radius through the Stokes-Einstein relation. Lattice Boltzmann and Langevin methods are used to model fluid motion and the transport of an ensemble of solute molecules in the fluid, providing statistics on solute concentration, flux, molecule age and residence time, as a function of depth in the SPP. Intraparticle effective diffusion and bed dispersion coefficients are calculated and correlated with the hydrodynamic radius and accessible porosity. The relative importance of convection and diffusion are found to depend on the molecule (tracer) size through the diffusion rate, and convection effects are more significant for larger, slower-diffusing molecules. When larger molecules are utilized, the intraparticle concentration is reduced in proportion to the local particle porosity, leading to a natural definition of the accessible porosity used in size exclusion chromatography (SEC). Although the pore shape is complex, the SEC constant K can be calculated directly from simulation. Simulation demonstrates that the effective diffusion coefficient is elevated near the particle hull, which is largely open to interstitial flow, and decreases with depth into the particle. All molecules studied here have transport access to the entire particle depth, although the accessible volume at a given depth depends on their size. The first passage time into the particle is well predicted by the diffusion rate, but residence time is influenced by convection, shortening the average visit duration. These results are of interest in "perfusion" chromatography where convection is thought to increase separation efficiency for large biomolecules.
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Affiliation(s)
- Robert S Maier
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455-0132, USA
| | - Mark R Schure
- Theoretical Separation Science Laboratory, Kroungold Analytical Inc., 1299 Butler Pike, Blue Bell, PA 19422, USA
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10
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Reich SJ, Svidrytski A, Hlushkou D, Stoeckel D, Kübel C, Höltzel A, Tallarek U. Hindrance Factor Expression for Diffusion in Random Mesoporous Adsorbents Obtained from Pore-Scale Simulations in Physical Reconstructions. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04840] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Stefan-Johannes Reich
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Artur Svidrytski
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Dzmitry Hlushkou
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Daniela Stoeckel
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
- Institute of Physical Chemistry, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 58, 35392 Gießen, Germany
| | - Christian Kübel
- Institute
of Nanotechnology and Karlsruhe Nano Micro Facility, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Alexandra Höltzel
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Ulrich Tallarek
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
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11
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Vanson JM, Coudert FX, Klotz M, Boutin A. Kinetic Accessibility of Porous Material Adsorption Sites Studied through the Lattice Boltzmann Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1405-1411. [PMID: 28121447 DOI: 10.1021/acs.langmuir.6b04472] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present here a computational model based on the lattice Boltzmann scheme to investigate the accessibility of active adsorption sites in hierarchical porous materials to adsorbates in a flowing liquid. By studying the transport and adsorption of tracers after they enter the pore space of the virtual sample, we characterize their kinetics as they pass through the pore space and adsorb on the solid-liquid interface. The model is validated on simple geometries with a known analytical solution. We then use it to investigate the influence of regular grooves or disordered roughness on the walls of a slit pore geometry, looking at the impact on adsorption and transport. In particular, we highlight the importance of adsorption site accessibility, which depends on the shape and connectivity of the pore space as well as the fluid flow profile and velocity.
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Affiliation(s)
- Jean-Mathieu Vanson
- École Normale Supérieure, PSL Research University, Département de Chimie, Sorbonne Universités - UPMC Univ Paris 06, CNRS UMR 8640 PASTEUR, 24 rue Lhomond, 75005 Paris, France
- Laboratoire de Synthèse et Fonctionnalisation des Céramiques, UMR 3080 Saint-Gobain CREE/CNRS, 550 Avenue Alphonse Jauffret, 84306 Cavaillon, France
| | - François-Xavier Coudert
- PSL Research University, Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Michaela Klotz
- Laboratoire de Synthèse et Fonctionnalisation des Céramiques, UMR 3080 Saint-Gobain CREE/CNRS, 550 Avenue Alphonse Jauffret, 84306 Cavaillon, France
| | - Anne Boutin
- École Normale Supérieure, PSL Research University, Département de Chimie, Sorbonne Universités - UPMC Univ Paris 06, CNRS UMR 8640 PASTEUR, 24 rue Lhomond, 75005 Paris, France
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12
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Vehus T, Roberg-Larsen H, Waaler J, Aslaksen S, Krauss S, Wilson SR, Lundanes E. Versatile, sensitive liquid chromatography mass spectrometry - Implementation of 10 μm OT columns suitable for small molecules, peptides and proteins. Sci Rep 2016; 6:37507. [PMID: 27897190 PMCID: PMC5126632 DOI: 10.1038/srep37507] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 10/28/2016] [Indexed: 12/14/2022] Open
Abstract
We have designed a versatile and sensitive liquid chromatographic (LC) system, featuring a monolithic trap column and a very narrow (10 μm ID) fused silica open tubular liquid chromatography (OTLC) separation column functionalized with C18-groups, for separating a wide range of molecules (from small metabolites to intact proteins). Compared to today's capillary/nanoLC approaches, our system provides significantly enhanced sensitivity (up to several orders) with matching or improved separation efficiency, and highly repeatable chromatographic performance. The chemical properties of the trap column and the analytical column were fine-tuned to obtain practical sample loading capacities (above 2 μg), an earlier bottleneck of OTLC. Using the OTLC system (combined with Orbitrap mass spectrometry), we could perform targeted metabolomics of sub-μg amounts of exosomes with 25 attogram detection limit of a breast cancer-related hydroxylated cholesterol. With the same set-up, sensitive bottom-up proteomics (targeted and untargeted) was possible, and high-resolving intact protein analysis. In contrast to state-of-the-art packed columns, our platform performs chromatography with very little dilution and is "fit-for-all", well suited for comprehensive analysis of limited samples, and has potential as a tool for challenges in diagnostics.
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Affiliation(s)
- T. Vehus
- Department of Chemistry, University of Oslo, Post Box 1033 Blindern, NO-0315 Oslo, Norway
- Department of Engineering Sciences, University of Agder, Jon Lilletunsvei 9, NO-4891 Grimstad, Norway
| | - H. Roberg-Larsen
- Department of Chemistry, University of Oslo, Post Box 1033 Blindern, NO-0315 Oslo, Norway
| | - J. Waaler
- Unit for Cell Signaling, SFI-CAST Biomedical Innovation Center, Oslo University Hospital, Rikshospitalet, NO-0027 Oslo, Norway
| | - S. Aslaksen
- Unit for Cell Signaling, SFI-CAST Biomedical Innovation Center, Oslo University Hospital, Rikshospitalet, NO-0027 Oslo, Norway
| | - S. Krauss
- Unit for Cell Signaling, SFI-CAST Biomedical Innovation Center, Oslo University Hospital, Rikshospitalet, NO-0027 Oslo, Norway
| | - S. R. Wilson
- Department of Chemistry, University of Oslo, Post Box 1033 Blindern, NO-0315 Oslo, Norway
| | - E. Lundanes
- Department of Chemistry, University of Oslo, Post Box 1033 Blindern, NO-0315 Oslo, Norway
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13
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14
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Abstract
This review presents the state-of-the-art of multiscale adsorption and transport in hierarchical porous materials.
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Affiliation(s)
- Benoit Coasne
- Université Grenoble Alpes
- LIPHY
- F-38000 Grenoble
- France
- CNRS
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15
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Galarneau A, Sachse A, Said B, Pelisson CH, Boscaro P, Brun N, Courtheoux L, Olivi-Tran N, Coasne B, Fajula F. Hierarchical porous silica monoliths: A novel class of microreactors for process intensification in catalysis and adsorption. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.05.017] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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WANG H, PIETRASANTA A, JEULIN D, WILLOT F, FAESSEL M, SORBIER L, MOREAUD M. Modelling mesoporous alumina microstructure with 3D random models of platelets. J Microsc 2015; 260:287-301. [DOI: 10.1111/jmi.12295] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 07/03/2015] [Indexed: 11/30/2022]
Affiliation(s)
- H. WANG
- MINES ParisTech, PSL - Research University; CMM - Centre for Mathematical Morphology; 35, rue St Honoré F-77300 Fontainebleau France
| | - A. PIETRASANTA
- MINES ParisTech, PSL - Research University; CMM - Centre for Mathematical Morphology; 35, rue St Honoré F-77300 Fontainebleau France
| | - D. JEULIN
- MINES ParisTech, PSL - Research University; CMM - Centre for Mathematical Morphology; 35, rue St Honoré F-77300 Fontainebleau France
| | - F. WILLOT
- MINES ParisTech, PSL - Research University; CMM - Centre for Mathematical Morphology; 35, rue St Honoré F-77300 Fontainebleau France
| | - M. FAESSEL
- MINES ParisTech, PSL - Research University; CMM - Centre for Mathematical Morphology; 35, rue St Honoré F-77300 Fontainebleau France
| | - L. SORBIER
- IFP Energies Nouvelles; Rond-point de l'échangeur de Solaize; BP 3 69360 Solaize France
| | - M. MOREAUD
- IFP Energies Nouvelles; Rond-point de l'échangeur de Solaize; BP 3 69360 Solaize France
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17
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Agrawal A, Choudhury S, Archer LA. A highly conductive, non-flammable polymer–nanoparticle hybrid electrolyte. RSC Adv 2015. [DOI: 10.1039/c5ra01031d] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bi-dispersed hybrid nanoparticle electrolytes exhibit high ionic conductivity and reduced activation energy, enabling electrolytes with high particle loading.
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Affiliation(s)
- Akanksha Agrawal
- School of Chemical and Biomolecular Engineering
- Cornell University
- Ithaca
- USA
| | | | - Lynden A. Archer
- School of Chemical and Biomolecular Engineering
- Cornell University
- Ithaca
- USA
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18
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de Neuville BC, Lamprou A, Morbidelli M, Soos M. Perfusive ion-exchange chromatographic materials with high capacity. J Chromatogr A 2014; 1374:180-188. [DOI: 10.1016/j.chroma.2014.11.066] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 10/21/2014] [Accepted: 11/25/2014] [Indexed: 10/24/2022]
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19
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Pitkänen L, Striegel AM. AF4/MALS/QELS/DRI characterization of regular star polymers and their “span analogs”. Analyst 2014; 139:5843-51. [DOI: 10.1039/c4an01105h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Bouchet R, Phan TNT, Beaudoin E, Devaux D, Davidson P, Bertin D, Denoyel R. Charge Transport in Nanostructured PS–PEO–PS Triblock Copolymer Electrolytes. Macromolecules 2014. [DOI: 10.1021/ma500420w] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. Bouchet
- Laboratoire
d’Electrochimie et de Physico-chimie des Matériaux et
des Interfaces (LEPMI) UMR CNRS 5279, Grenoble Universités, 1130
rue de la piscine, 38402 St. Martin d’Hères, France
| | - T. N. T. Phan
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
| | - E. Beaudoin
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
- Laboratoire
de Physique des Solides, UMR 8502 CNRS, Université Paris-Sud, Bâtiment 510, 91405 Orsay, Cedex, France
| | - D. Devaux
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
- MADIREL
- UMR 7246, Matériaux divisés, interfaces, réactivité,
électrochimie, Aix-Marseille Université, Campus saint Jérôme,
Bât. MADIREL, 13397 Marseille, Cedex 20, France
| | - P. Davidson
- Laboratoire
de Physique des Solides, UMR 8502 CNRS, Université Paris-Sud, Bâtiment 510, 91405 Orsay, Cedex, France
| | - D. Bertin
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
| | - R. Denoyel
- MADIREL
- UMR 7246, Matériaux divisés, interfaces, réactivité,
électrochimie, Aix-Marseille Université, Campus saint Jérôme,
Bât. MADIREL, 13397 Marseille, Cedex 20, France
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Yan X, Li N. Nanopillar array with multi-scale inter-pillar spacing as chromatography stationary phase support: Theoretical performance evaluation. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2013.12.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Wernert V, Bouchet R, Denoyel R. Impact of the solute exclusion on the bed longitudinal diffusion coefficient and particle intra-tortuosity determined by ISEC. J Chromatogr A 2014; 1325:179-85. [DOI: 10.1016/j.chroma.2013.12.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 12/05/2013] [Accepted: 12/06/2013] [Indexed: 10/25/2022]
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23
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Role of tentacles and protein loading on pore accessibility and mass transfer in cation exchange materials for proteins. J Chromatogr A 2013; 1285:48-56. [DOI: 10.1016/j.chroma.2013.01.104] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 01/24/2013] [Accepted: 01/25/2013] [Indexed: 11/19/2022]
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24
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Lewandrowska A, Majcher A, Ochab-Marcinek A, Tabaka M, Hołyst R. Taylor Dispersion Analysis in Coiled Capillaries at High Flow Rates. Anal Chem 2013; 85:4051-6. [DOI: 10.1021/ac4007792] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anna Lewandrowska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Poland
| | - Aldona Majcher
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Poland
| | - Anna Ochab-Marcinek
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Poland
| | - Marcin Tabaka
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Poland
| | - Robert Hołyst
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Poland
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25
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Aziz MS, Jukgoljan B, Daud S, Tan TS, Ali J, Yupapin PP. Molecular filter on-chip design for drug targeting use. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2012; 41:178-83. [DOI: 10.3109/10731199.2012.715087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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The obstruction factor in size-exclusion chromatography. 2. The interparticle, intraparticle, and total obstruction factors. J Chromatogr A 2012; 1241:69-75. [PMID: 22560342 DOI: 10.1016/j.chroma.2012.04.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 04/05/2012] [Accepted: 04/08/2012] [Indexed: 11/22/2022]
Abstract
"Obstruction factor" is a generic rubric under which are usually gathered the interparticle, intraparticle, stationary phase, and total obstruction factors, γ(e), γ(p), γ(s), and γ(t), respectively. These, in turn, affect longitudinal diffusion and stationary, mobile phase, and stagnant mobile phase mass transfer. We conclude here our investigation into the various obstruction factors operative in size-exclusion chromatography (SEC). Stop-flow experiments were employed to determine either the interparticle (for analytes with K(SEC)=0) or the total (for analytes with K(SEC)>0) obstruction factor, and these results were combined with those from variable-flow-rate experiments which provided the intraparticle obstruction factor. Because of minimal enthalpic interactions between the analytes and stationary phase, in SEC γ(s)≈0, which allows for isolation of the other obstruction factors. A relationship between γ(t), γ(e), and γ(p) was proposed for SEC, based on previous independent work and dependent upon the various column porosities. This relationship was extended to hydrodynamic chromatography, a technique in which, ideally, both γ(s) and γ(p) are equal to zero.
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27
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Ye F, Jensen H, Larsen SW, Yaghmur A, Larsen C, Østergaard J. Measurement of drug diffusivities in pharmaceutical solvents using Taylor dispersion analysis. J Pharm Biomed Anal 2012; 61:176-83. [DOI: 10.1016/j.jpba.2011.11.030] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 11/25/2011] [Accepted: 11/27/2011] [Indexed: 11/30/2022]
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28
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Taylor dispersion analysis compared to dynamic light scattering for the size analysis of therapeutic peptides and proteins and their aggregates. Pharm Res 2011; 28:2302-10. [PMID: 21560019 PMCID: PMC3151397 DOI: 10.1007/s11095-011-0460-3] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Accepted: 04/26/2011] [Indexed: 11/02/2022]
Abstract
PURPOSE To evaluate Taylor dispersion analysis (TDA) as a novel method for determination of hydrodynamic radius of therapeutic peptides and proteins in non-stressed and stressed formulations and to compare it with dynamic light scattering (DLS). METHODS The hydrodynamic radius of oxytocin, bovine serum albumin, various monoclonal antibodies (type IgG) and etanercept at concentrations between 0.05 and 50 mg/ml was determined by TDA and DLS. IgGs and etanercept were stressed (elevated temperatures) and analyzed by TDA, DLS and HP-SEC. RESULTS TDA and DLS were comparable in sizing non-stressed peptides and proteins in a concentration range of about 0.5 to 50 mg/ml. TDA performed well even at lower concentrations, where DLS tends to provide theoretically high values of the Z-average radius. However, because of differences in the detection physics, DLS was more weighted towards the detection of aggregates in stressed formulations than TDA. Advantageously, TDA was also able to size the small peptide oxytocin, which was not feasible by DLS. CONCLUSION TDA allows the accurate determination of the hydrodynamic radius of peptides and proteins over a wide concentration range, with little interference from excipients present in the sample. It is marginally less sensitive than DLS in detecting size increase for stressed protein samples.
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29
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Uliyanchenko E, Schoenmakers PJ, van der Wal S. Fast and efficient size-based separations of polymers using ultra-high-pressure liquid chromatography. J Chromatogr A 2011; 1218:1509-18. [DOI: 10.1016/j.chroma.2011.01.053] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 01/13/2011] [Accepted: 01/17/2011] [Indexed: 11/29/2022]
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30
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Richard DJ, Striegel AM. The obstruction factor in size-exclusion chromatography. 1. The intraparticle obstruction factor. J Chromatogr A 2010; 1217:7131-7. [DOI: 10.1016/j.chroma.2010.09.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 08/27/2010] [Accepted: 09/08/2010] [Indexed: 11/30/2022]
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