1
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Zhou Z, Hilder EF, Eeltink S. A protocol for fabrication of polymer monolithic capillary columns and tuning the morphology targeting high-resolution bioanalysis in gradient-elution liquid chromatography. J Sep Sci 2023; 46:e2300439. [PMID: 37515368 DOI: 10.1002/jssc.202300439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Polymer monolithic stationary phases are designed as a continuous interconnected globular material perfused by macropores. Like packed column, where separation efficiency is related to particle diameter, the efficiency of monoliths can be enhanced by tuning the size of both the microglobules and macropores. This protocol described the synthesis of poly(styrene-co-divinylbenzene) monolithic stationary phases in capillary column formats. Moreover, guidelines are provided to tune the macropore structure targeting high-throughput and high-resolution monolith chromatography. The versatility of these columns is exemplified by their ability to separate tryptic digests, intact proteins, and oligonucleotides under a variety of chromatographic conditions. The repeatability of the presented column fabrication process is demonstrated by the successful creation of 12 columns in three different column batches, as evidenced by the consistency of retention times (coefficients of variance [c.v.] = 0.9%), peak widths (c.v. = 4.7%), and column pressures (c.v. = 3.1%) across the batches.
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Affiliation(s)
- Zhuoheng Zhou
- Department of Chemical Engineering, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Emily F Hilder
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | - Sebastiaan Eeltink
- Department of Chemical Engineering, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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2
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Mansour FR, Hilder EF, Algethami FK, Alomar T, Arrua RD. Effect of hydrophilic/lipophilic balance on the porogenic properties of non-ionic surfactants for monolith preparation and chromatographic separation. J Chromatogr A 2023; 1699:463991. [PMID: 37104946 DOI: 10.1016/j.chroma.2023.463991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023]
Abstract
The effect of hydrophilic/lipophilic balance (HLB) of polyoxyethylene ethers of different chain lengths on the microporogenic properties of the Brij surfactants has been studied. The objective of this work is to help better understand the role of each porogen and to set criteria for selecting the proper non-ionic surfactant, based on the HLB value. Seven recipes of different porogen compositions were first prepared and the highest efficiency was achieved using decane/decanol/dodecanol mixture with Brij® 30. Then, four other Brij surfactants covering the entire HLB scale were tested, and the prepared monoliths were characterized by SEM, BET, FT-IR and chromatography. The results showed that increasing the HLB from 9.72 to 18.84 was accompanied by an increase in monolith density and surface areas. The optimum HLB range was found to be 10 to 15. Surfactants of lower HLB formed either nonporous or less efficient columns, while those of higher HLB formed non-permeable columns. Adjusting the HLB was possible by mixing surfactants of different HLB. The prepared monoliths could be used in the isocratic mode with a mobile phase consisting of a mixture of ACN and water (20:80, v/v) at a flow rate of 1.5 μL min-1 to separate five sulfa drugs. The separation results showed that the elution order of the compounds correlated with their lipophilicity, with sulfamerazine (logp = 0.52) being the first to elute, and sulfaquinoxoline (logp=1.70) being the most retained. The asymmetry factors of the separated compounds ranged between 1.18 and 1.25, and the resolution was found to be in the range 2.92-7.80. The prepared monoliths could be also successfully separate a mixture of four different nonsteroidal anti-inflammatory drugs and a mixture of four benzoic acid derivatives. This work assists in optimizing the surfactant-based porogenic mixture to meet the desired porosity, surface area, morphology and chromatographic separation requirements.
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Affiliation(s)
- Fotouh R Mansour
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt; Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia.
| | - Emily F Hilder
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia; Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide SA 5095, Australia
| | - Faisal K Algethami
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90905, Riyadh, 11623, Kingdom of Saudi Arabia
| | - Taghrid Alomar
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - R Dario Arrua
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia; Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide SA 5095, Australia
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3
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Desire CT, Arrua RD, Strudwick XL, Kopecki Z, Cowin AJ, Hilder EF. The development of microfluidic-based western blotting: Technical advances and future perspectives. J Chromatogr A 2023; 1691:463813. [PMID: 36709548 DOI: 10.1016/j.chroma.2023.463813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/11/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023]
Abstract
Over the past two decades significant technical advancement in the field of western blotting has been made possible through the utilization of microfluidic technologies. In this review we provide a critical overview of these advancements, highlighting the advantages and disadvantages of each approach. Particular attention is paid to the development of now commercially available systems, including those for single cell analysis. This review also discusses more recent developments, including algorithms for automation and/or improved quantitation, the utilization of different materials/chemistries, use of projection electrophoresis, and the development of triBlots. Finally, the review includes commentary on future advances in the field based on current developments, and the potential of these systems for use as point-of-care devices in healthcare.
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Affiliation(s)
- Christopher T Desire
- Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - R Dario Arrua
- Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Xanthe L Strudwick
- Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Zlatko Kopecki
- Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Allison J Cowin
- Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Emily F Hilder
- Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
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4
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Skvortsov AT, Dagdug L, Hilder EF, Berezhkovskii AM, Bezrukov SM. Permeability and diffusion resistance of porous membranes: Analytical theory and its numerical test. J Chem Phys 2023; 158:054114. [PMID: 36754803 PMCID: PMC10162835 DOI: 10.1063/5.0138036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/11/2023] [Indexed: 02/08/2023] Open
Abstract
This study is devoted to the transport of neutral solutes through porous flat membranes, driven by the solute concentration difference in the reservoirs separated by the membrane. Transport occurs through membrane channels, which are assumed to be non-overlapping, identical, straight cylindrical pores connecting the reservoirs. The key quantities characterizing transport are membrane permeability and its diffusion resistance. Such transport problems arising in very different contexts, ranging from plant physiology and cell biology to chemical engineering, have been studied for more than a century. Nevertheless, an expression giving the permeability for a membrane of arbitrary thickness at arbitrary surface densities of the channel openings is still unknown. Here, we fill in the gap and derive such an expression. Since this expression is approximate, we compare its predictions with the permeability obtained from Brownian dynamics simulations and find good agreement between the two.
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Affiliation(s)
| | | | - Emily F. Hilder
- Defence Science and Technology Group, Melbourne, VIC 3207, Australia
| | - Alexander M. Berezhkovskii
- Section of Molecular Transport, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Sergey M. Bezrukov
- Section of Molecular Transport, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
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5
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Desire CT, Arrua RD, Mansour FR, Bon SAF, Hilder EF. Styrene-based polymerised high internal phase emulsions using monomers in the internal phase as co-surfactants for improved liquid chromatography. RSC Adv 2022; 12:9773-9785. [PMID: 35424961 PMCID: PMC8961205 DOI: 10.1039/d1ra07705h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/08/2022] [Indexed: 11/21/2022] Open
Abstract
Poly(styrene-co-divinylbenzene)-based monoliths were prepared from the polymerisation of water-in-monomer high internal phase emulsions, where the water-soluble monomers acrylamide (AAm) or poly(ethylene glycol) diacrylate (PEGDA) (Mw 258) were also included in the 90 vol% internal phase. Both AAm and PEGDA were found to act as co-surfactants, resulting in the obtainment of monoliths with greater homogeneity in some cases. As a result these materials demonstrated significantly improved chromatographic performance for the separation of a standard mixture of proteins using reversed-phase liquid chromatography, in comparison to monoliths prepared with no internal phase monomer. In particular, the columns grafted with PEGDA were capable of separating a more complex mixture consisting of seven components. The inclusion of monomers in the internal phase also allowed for the functionalisation of the monolith's surface where the degree of polymerisation that occurred in the internal phase, which was governed by the monomer content in the internal phase and initiation location, determined whether polymeric chains or a hydrogel were grafted to the surface. A monolith grafted with AAm was also found to be capable of retaining polar analytes as a result of the increase in surface hydrophilicity. Poly(styrene-co-divinylbenzene)-based monoliths prepared from the polymerisation of water-in-monomer high internal phase emulsions, where water-soluble monomers acrylamide or poly(ethylene glycol) diacrylate (Mw 258) were included in internal phase.![]()
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Affiliation(s)
- Christopher T Desire
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences, University of Tasmania Hobart Australia.,University of South Australia, STEM, Future Industries Institute SA 5000 Australia
| | - R Dario Arrua
- University of South Australia, STEM, Future Industries Institute SA 5000 Australia
| | - Fotouh R Mansour
- Department of Pharmaceutical Analytical Chemistry, Tanta University Tanta Egypt
| | - Stefan A F Bon
- Department of Chemistry, The University of Warwick Coventry CV4 7AL UK
| | - Emily F Hilder
- University of South Australia, STEM, Future Industries Institute SA 5000 Australia
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6
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Cheah E, Tran DP, Amen MT, Arrua RD, Hilder EF, Thierry B. Integrated Platform Addressing the Finger-Prick Blood Processing Challenges of Point-of-Care Electrical Biomarker Testing. Anal Chem 2022; 94:1256-1263. [DOI: 10.1021/acs.analchem.1c04470] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Edward Cheah
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
- ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Duy P. Tran
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
- ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Mohamed T. Amen
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
- ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - R. Dario Arrua
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Emily F. Hilder
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Benjamin Thierry
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
- ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes, South Australia 5095, Australia
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7
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Mansour FR, Desire CT, Hilder EF, Arrua RD. Effect of ethoxylated sorbitan ester surfactants on the chromatographic efficiency of poly(ethylene glycol)-based monoliths. J Chromatogr A 2021; 1654:462464. [PMID: 34438302 DOI: 10.1016/j.chroma.2021.462464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 01/04/2023]
Abstract
The effect of adding ethoxylated sorbitan ester surfactants (Tweens®) to poly(ethylene glycol) diacrylate-based monolithic recipes was investigated. Five different Tweens® have been evaluated to investigate the exact role of non-ionic surfactants in poly(ethylene glycol) diacrylate-based monolith preparations. These monoliths were characterized by scanning electron microscopy, infrared spectroscopy, and nitrogen physisorption analysis. Different morphological features, and surface areas were observed when different types of Tween® were included in the recipe; Tween® 20 and 85 showed small globules, while Tween® 40, 60 and 80 exhibited larger globular structures with different sizes and degrees of coalescence. The different Tween®-based monoliths were investigated for the chromatographic separation of mixtures consisting of hydroxybenzoic acids and alkylbenzenes. These columns were mechanically stable, except for Tween® 80. The highest methylene selectivity and the best overall performance were achieved by Tween® 60. The efficiency was increased by increasing the concentration of the Tween® 60 and the amount of poly(ethylene glycol) diacrylate Mn 700 in the recipes up to 30 wt%, each. Further increases in either Tween® 60 or poly(ethylene glycol) diacrylate Mn 700 led to formation of non-permeable columns. The optimized column was successfully used for separation of mixtures of nonsteroidal anti-inflammatory and sulfa drugs, with a maximum efficiency of 60,000 plates/m.
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Affiliation(s)
- Fotouh R Mansour
- Department of Pharmaceutical Analytical Chemistry, Tanta University, Tanta, Egypt; Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia
| | - Christopher T Desire
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia; Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide SA 5095, Australia
| | - Emily F Hilder
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia; Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide SA 5095, Australia
| | - R Dario Arrua
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia; Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide SA 5095, Australia.
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8
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Khodabandeh A, Arrua RD, Thickett SC, Hilder EF. Utilizing RAFT Polymerization for the Preparation of Well-Defined Bicontinuous Porous Polymeric Supports: Application to Liquid Chromatography Separation of Biomolecules. ACS Appl Mater Interfaces 2021; 13:32075-32083. [PMID: 34190530 DOI: 10.1021/acsami.1c03542] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Polymer-based monolithic high-performance liquid chromatography (HPLC) columns are normally obtained by conventional free-radical polymerization. Despite being straightforward, this approach has serious limitations with respect to controlling the structural homogeneity of the monolith. Herein, we explore a reversible addition-fragmentation chain transfer (RAFT) polymerization method for the fabrication of porous polymers with well-defined porous morphology and surface chemistry in a confined 200 μm internal diameter (ID) capillary format. This is achieved via the controlled polymerization-induced phase separation (controlled PIPS) synthesis of poly(styrene-co-divinylbenzene) in the presence of a RAFT agent dissolved in an organic solvent. The effects of the radical initiator/RAFT molar ratio as well as the nature and amount of the organic solvent were studied to target cross-linked porous polymers that were chemically bonded to the inner wall of a modified silica-fused capillary. The morphological and surface properties of the obtained polymers were thoroughly characterized by in situ nuclear magnetic resonance (NMR) experiments, nitrogen adsorption-desorption experiments, elemental analyses, field-emission scanning electron microscopy (FESEM), scanning electron microscopy-energy-dispersive X-ray (SEM-EDX) spectroscopy, and X-ray photoelectron spectroscopy (XPS) as well as time-of-flight secondary ion mass spectrometry (ToF-SIMS) revealing the physicochemical properties of these styrene-based materials. When compared with conventional synthetic methods, the controlled-PIPS approach affects the kinetics of polymerization by delaying the onset of phase separation, enabling the construction of materials with a smaller pore size. The results demonstrated the potential of the controlled-PIPS approach for the design of porous monolithic columns suitable for liquid separation of biomolecules such as peptides and proteins.
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Affiliation(s)
- Aminreza Khodabandeh
- UniSA STEM, Future Industries Institute, University of South Australia, Adelaide, SA 5000, Australia
| | - R Dario Arrua
- UniSA STEM, Future Industries Institute, University of South Australia, Adelaide, SA 5000, Australia
| | - Stuart C Thickett
- School of Natural Sciences (Chemistry), University of Tasmania, Hobart, TAS 7005, Australia
| | - Emily F Hilder
- UniSA STEM, Future Industries Institute, University of South Australia, Adelaide, SA 5000, Australia
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9
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Lubomirsky E, Khodabandeh A, Preis J, Susewind M, Hofe T, Hilder EF, Arrua RD. Polymeric stationary phases for size exclusion chromatography: A review. Anal Chim Acta 2021; 1151:338244. [PMID: 33608083 DOI: 10.1016/j.aca.2021.338244] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 11/17/2022]
Abstract
Synthetic and natural macromolecules are commonly used in a variety of fields such as plastics, nanomedicine, biotherapeutics, drug delivery and tissue engineering. Characterising macromolecules in terms of their structural parameters (size, molar mass and distribution, architecture) is key to have a better understanding of their structure-property relationships. Size exclusion chromatography (SEC) is a commonly used technique for polymer characterization since it offers access to the determination of the size of a macromolecule, its molar mass and the molar mass distribution. Moreover, detectors that allow the determination of true molar masses, macromolecule's architecture and the composition of copolymers can be coupled to the chromatographic system. Like other chromatographic techniques, the stationary phase is of paramount importance for efficient SEC separations. This review presents the basic principles for the design of stationary phases for SEC as well as synthetic methods currently used in the field. Current status of fully-porous polymeric stationary phases used in SEC is reviewed and their advantages and limitations are also discussed. Finally, the potential of polymer monoliths in SEC is also covered, highlighting the limitations this column technology could address. However, further development in the polymer structure is needed to consider this column technology in the field of macromolecule separation.
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Affiliation(s)
- Ester Lubomirsky
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, South Australia, 5095, Australia
| | - Aminreza Khodabandeh
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, South Australia, 5095, Australia
| | - Jasmin Preis
- Polymer Standards Service GmbH, In der Dalheimer Wiese 5, Mainz, 55120, Germany
| | - Moritz Susewind
- Polymer Standards Service GmbH, In der Dalheimer Wiese 5, Mainz, 55120, Germany
| | - Thorsten Hofe
- Polymer Standards Service GmbH, In der Dalheimer Wiese 5, Mainz, 55120, Germany
| | - Emily F Hilder
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, South Australia, 5095, Australia
| | - R Dario Arrua
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, South Australia, 5095, Australia.
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10
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Mansour FR, Arrua RD, Desire CT, Hilder EF. Non-ionic Surface Active Agents as Additives toward a Universal Porogen System for Porous Polymer Monoliths. Anal Chem 2021; 93:2802-2810. [PMID: 33496173 DOI: 10.1021/acs.analchem.0c03889] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The influence of the addition of various non-ionic surfactants to poly(ethylene glycol) diacrylate-based monolith formulations was studied. Eight non-ionic surfactants having different chemistries were chosen for this study. These surfactants were Brij L4, Span 80, IGEPAL CO-520, Tergitol 15S9, 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethoxylate, Tween 40, Triton X-405, and Tetronic 701. The chemical structures of these surfactants have a variety of functional groups and cover a wide range of molecular weights (360-3600 g/mol), viscosities (60-1500 cP), and hydrophilic-lipophilic balances (1.0-17.6). The formed polymers were characterized by scanning electron microscopy, surface area measurement by the Brunauer-Emmet-Teller method, elemental analysis, and Fourier transform infrared. Four formulations, involving the use of surfactants, resulted in permeable materials when prepared in 150 μm ID silica capillaries. The chromatographic performance of the resulting columns in reversed-phase mode was evaluated and compared using a mixture of alkyl benzenes as test analytes. The highest efficiency and methylene selectivity were observed when Tween 40 was included in the formulation, using decane/decanol/dodecanol as coporogens. This porogenic mixture was successfully used for preparation of monolithic columns from a selection of methacrylate- and styrene-based monomers, including butylmethacrylate, hydroxyethymethacrylate, laurylmethacrylate, glycidyl methacrylate, bisphenol diacrylate, benzylmethacrylate, and N,N-dimethylacrylamide, as well as for divinylbenzene. These results show the applicability of this porogenic mixture for a variety of monolithic formulations, providing an approach for developing a universal porogen system.
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Affiliation(s)
- Fotouh R Mansour
- Department of Pharmaceutical Analytical Chemistry, Tanta University, Tanta 31111, Egypt.,Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Hobart, Tasmania 7005, Australia
| | - R Dario Arrua
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Hobart, Tasmania 7005, Australia.,Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Christopher T Desire
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Hobart, Tasmania 7005, Australia.,Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Emily F Hilder
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Hobart, Tasmania 7005, Australia.,Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
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11
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Biswas B, Warr LN, Hilder EF, Goswami N, Rahman MM, Churchman JG, Vasilev K, Pan G, Naidu R. Biocompatible functionalisation of nanoclays for improved environmental remediation. Chem Soc Rev 2019; 48:3740-3770. [PMID: 31206104 DOI: 10.1039/c8cs01019f] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Among the wide range of materials used for remediating environmental contaminants, modified and functionalised nanoclays show particular promise as advanced sorbents, improved dispersants, or biodegradation enhancers. However, many chemically modified nanoclay materials are incompatible with living organisms when they are used in natural systems with detrimental implications for ecosystem recovery. Here we critically review the pros and cons of functionalised nanoclays and provide new perspectives on the synthesis of environmentally friendly varieties. Particular focus is given to finding alternatives to conventional surfactants used in modified nanoclay products, and to exploring strategies in synthesising nanoclay-supported metal and metal oxide nanoparticles. A large number of promising nanoclay-based sorbents are yet to satisfy environmental biocompatibility in situ but opportunities are there to tailor them to produce "biocompatible" or regenerative/reusable materials.
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Affiliation(s)
- Bhabananda Biswas
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia. and Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ACT building, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Laurence N Warr
- Institute for Geography and Geology, University of Greifswald, D-17487 Greifswald, Germany
| | - Emily F Hilder
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia.
| | - Nirmal Goswami
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Mohammad M Rahman
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ACT building, The University of Newcastle, Callaghan, NSW 2308, Australia. and Global Centre for Environmental Remediation, the University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Jock G Churchman
- School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Urrbrae, SA 5064, Australia
| | - Krasimir Vasilev
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Gang Pan
- Centre of Integrated Water-Energy-Food Studies, School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Southwell, NG25 0QF, UK
| | - Ravi Naidu
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ACT building, The University of Newcastle, Callaghan, NSW 2308, Australia. and Global Centre for Environmental Remediation, the University of Newcastle, Callaghan, NSW 2308, Australia.
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12
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Funari CS, Sutton AT, Carneiro RL, Fraige K, Cavalheiro AJ, da Silva Bolzani V, Hilder EF, Arrua RD. Natural deep eutectic solvents and aqueous solutions as an alternative extraction media for propolis. Food Res Int 2019; 125:108559. [PMID: 31554116 DOI: 10.1016/j.foodres.2019.108559] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/27/2019] [Accepted: 07/11/2019] [Indexed: 11/27/2022]
Abstract
Ethanolic extracts of propolis are consumed for their health benefits even though direct consumption of alcoholic extracts is not always ideal. Natural Deep Eutectic Solvents (NADES) can potentially extract similar compounds as alcoholic extracts while being better for direct consumption. Therefore, in this work alternative solvents for the extraction of green propolis including its biomarker artepillin C were examined. Sixteen NADES made from low toxicity chemicals, including the essential amino acid l-lysine, were explored along with twelve individual NADES components and honey, which showed similar physical-chemical properties to NADES. At 50 °C NADES made from choline chloride-propylene glycol or lactic acid proved to be equal or better than the benchmark EtOH:Water 7:3 (v/v). Alternatively, aqueous l-lysine appeared as a potential solvent for the preparation of aqueous propolis extracts. From these findings NADES, honey and aqueous l-lysine solutions all demonstrated the potential to replace ethanol or water for extracting green propolis.
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Affiliation(s)
- Cristiano Soleo Funari
- São Paulo State University (UNESP), Faculty of Agricultural Sciences, Botucatu, São Paulo, Brazil.
| | - Adam T Sutton
- University of South Australia (UniSA), Future Industries Institute, Adelaide, South Australia, Australia.
| | - Renato Lajarim Carneiro
- Federal University of São Carlos (UFSCar), Department of Chemistry, São Carlos, São Paulo, Brazil
| | - Karina Fraige
- São Paulo State University (UNESP), Institute of Chemistry, Araraquara, São Paulo, Brazil
| | | | | | - Emily F Hilder
- University of South Australia (UniSA), Future Industries Institute, Adelaide, South Australia, Australia.
| | - R Dario Arrua
- University of South Australia (UniSA), Future Industries Institute, Adelaide, South Australia, Australia.
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13
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Fornells E, Hilder EF, Shellie RA, Breadmore MC. On-line solvent exchange system: Automation from extraction to analysis. Anal Chim Acta 2019; 1047:231-237. [PMID: 30567655 DOI: 10.1016/j.aca.2018.09.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/05/2018] [Accepted: 09/17/2018] [Indexed: 11/30/2022]
Abstract
Removal of organic solvent from sample extracts is required before analysis by reversed phase HPLC to preserve chromatographic performance and allow for bigger injection volumes, boosting sensitivity. Herein, an automated on-line extraction evaporation procedure is integrated with HPLC analysis. The evaporation occurs inside a 200 μm microfluidic channel confined by a vapor permeable membrane. A feedback control algorithm regulates evaporation rate keeping the output flow rate constant. The evaporation process across this membrane was firstly characterized with water/solvent mixtures showing organic solvent removal capabilities. This system allowed continuous methanol, ethanol and acetonitrile removal from samples containing up to 80% organic solvent. An evaporative injection procedure was developed demonstrating the use of the device for fully integrated extract reconstitution coupled to HPLC analysis, applied to analysis of the antibiotic chloramphenicol in milk samples. Sample reconstitution and collection was performed in less than 10 min and can be executed simultaneously to HPLC analysis of the previous sample in a routine workflow, thus having minimal impact on the total sample analysis time when run in a sequence.
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Affiliation(s)
- Elisenda Fornells
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), Australia; ACROSS (Australian Centre for Research on Separation Science), University of Tasmania, Hobart, Tasmania, Australia
| | - Emily F Hilder
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), Australia; Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia
| | - Robert A Shellie
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), Australia; Trajan Scientific and Medical, Ringwood, Victoria, Australia
| | - Michael C Breadmore
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), Australia; ACROSS (Australian Centre for Research on Separation Science), University of Tasmania, Hobart, Tasmania, Australia.
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14
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Fornells E, Hilder EF, Breadmore MC. Preconcentration by solvent removal: techniques and applications. Anal Bioanal Chem 2019; 411:1715-1727. [DOI: 10.1007/s00216-018-1530-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/07/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023]
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15
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Desire CT, Arrua RD, Mansour FR, Bon SAF, Hilder EF. Effect of shearing stress on the radial heterogeneity and chromatographic performance of styrene-based polymerised high internal phase emulsions prepared in capillary format. RSC Adv 2019; 9:7301-7313. [PMID: 35519965 PMCID: PMC9061218 DOI: 10.1039/c8ra06188b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 01/30/2019] [Indexed: 11/22/2022] Open
Abstract
Poly(styrene-co-divinylbenzene) monoliths were prepared from the polymerisation of water-in-monomer high internal phase emulsions consisting of a 90 vol% internal phase and stabilised by the non-ionic surfactant Span 80®. The materials were prepared in capillary housings of various internal diameters ranging from 150 μm to 540 μm by simply passing the emulsion through the capillaries. When low shear (300 rpm) was used for emulsification, the droplet and resulting void size distributions were observed to shift towards lower values when the emulsions were forced through capillaries of internal diameter less than 540 μm and all columns exhibited significant radial heterogeneity. When high shear was employed (14 000 rpm) the resulting emulsions preserved their structure when forced through these capillaries and possessed narrower void size distributions with no obvious radial heterogeneity observed upon curing. This resulted in significantly improved chromatographic performance for the separation of a standard mixture of proteins when compared to the materials prepared under low shear. The preparation of polymerised high internal phase emulsions with high shear in narrower capillary dimensions results in significant improvements in the chromatographic performance for the separation of proteins.![]()
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Affiliation(s)
- Christopher T. Desire
- Australian Centre for Research on Separation Science (ACROSS)
- School of Physical Sciences
- University of Tasmania
- Hobart
- Australia
| | - R. Dario Arrua
- Future Industries Institute
- University of South Australia
- Adelaide
- Australia
| | - Fotouh R. Mansour
- Department of Pharmaceutical Analytical Chemistry
- Tanta University
- Tanta
- Egypt
| | | | - Emily F. Hilder
- Future Industries Institute
- University of South Australia
- Adelaide
- Australia
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16
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Oksdath M, Perrin SL, Bardy C, Hilder EF, DeForest CA, Arrua RD, Gomez GA. Review: Synthetic scaffolds to control the biochemical, mechanical, and geometrical environment of stem cell-derived brain organoids. APL Bioeng 2018; 2:041501. [PMID: 31069322 PMCID: PMC6481728 DOI: 10.1063/1.5045124] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 10/31/2018] [Indexed: 01/16/2023] Open
Abstract
Stem cell-derived brain organoids provide a powerful platform for systematic studies of tissue functional architecture and the development of personalized therapies. Here, we review key advances at the interface of soft matter and stem cell biology on synthetic alternatives to extracellular matrices. We emphasize recent biomaterial-based strategies that have been proven advantageous towards optimizing organoid growth and controlling the geometrical, biomechanical, and biochemical properties of the organoid's three-dimensional environment. We highlight systems that have the potential to increase the translational value of region-specific brain organoid models suitable for different types of manipulations and high-throughput applications.
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Affiliation(s)
- Mariana Oksdath
- Centre for Cancer Biology, South Australia Pathology and University of South Australia, Adelaide 5001, Australia
| | - Sally L. Perrin
- Centre for Cancer Biology, South Australia Pathology and University of South Australia, Adelaide 5001, Australia
| | | | - Emily F. Hilder
- Future Industries Institute, University of South Australia, Mawson Lakes 5095, Australia
| | - Cole A. DeForest
- Department of Chemical Engineering and Department of Bioengineering, University of Washington, Seattle, Washington 98195-1750, USA
| | - R. Dario Arrua
- Future Industries Institute, University of South Australia, Mawson Lakes 5095, Australia
| | - Guillermo A. Gomez
- Centre for Cancer Biology, South Australia Pathology and University of South Australia, Adelaide 5001, Australia
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17
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Fraige K, Arrua RD, Sutton AT, Funari CS, Cavalheiro AJ, Hilder EF, Bolzani VDS. Using natural deep eutectic solvents for the extraction of metabolites in Byrsonima intermedia leaves. J Sep Sci 2018; 42:591-597. [PMID: 30427122 DOI: 10.1002/jssc.201800905] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 10/30/2018] [Accepted: 11/01/2018] [Indexed: 01/25/2023]
Abstract
Natural deep eutectic solvents have been used as an alternative to organic solvents for the extraction of plants metabolites, allowing for the extraction of compounds of different polarities, while being inexpensive, non-toxic, and easy to prepare. This work presents the comparison of the chromatographic profiles by high-performance liquid chromatography with diode-array detection obtained from Byrsonima intermedia (Malpighiaceae) using five choline chloride-based natural deep eutectic solvents, in addition to the most used traditional extraction solvents, methanol/water 7:3 and ethanol/water 7:3 v/v. A reference extract was used to tentatively identify compounds by high-performance liquid chromatography with tandem mass spectrometry. The water content appeared to be important for the extraction efficiency and the mixture choline chloride/glycerol was shown to be the best candidate for efficiently extracting this matrix when compared with the traditional extraction media in addition to being far greener as shown by the environmental analysis tool. Seven phenolic compounds (digalloyl quinic acid, proanthocyanidin dimer, galloylproanthocyanidin dimer, quercetin-O-hexoside, galloyl quercetin hexoside, quercetin-O-pentoside, and galloyl quercetin pentoside) were tentatively identified in all extracts. Moreover, the influence of these solvents on the antioxidant activity of the extracts was studied and the results for choline chloride/glycerol extracts were very similar to that of the traditional extraction solvents.
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Affiliation(s)
- Karina Fraige
- UNESP-São Paulo State University, Institute of Chemistry, Araraquara, São Paulo, Brazil
| | - R Dario Arrua
- Future Industries Institute, University of South Australia (UniSA), Adelaide, South Australia, Australia
| | - Adam T Sutton
- Future Industries Institute, University of South Australia (UniSA), Adelaide, South Australia, Australia
| | - Cristiano Soleo Funari
- UNESP-São Paulo State University, Faculty of Agricultural Sciences, Botucatu, São Paulo, Brazil
| | | | - Emily F Hilder
- Future Industries Institute, University of South Australia (UniSA), Adelaide, South Australia, Australia
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18
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Sutton AT, Arrua RD, Gaborieau M, Castignolles P, Hilder EF. Characterization of oligo(acrylic acid)s and their block co-oligomers. Anal Chim Acta 2018; 1032:163-177. [PMID: 30143214 DOI: 10.1016/j.aca.2018.05.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 05/06/2018] [Accepted: 05/08/2018] [Indexed: 01/19/2023]
Abstract
Oligo(acrylic acid), oligoAA are important species currently used industrially in the stabilization of paints and also for the production of self-assembled polymer structures which have been shown to have useful applications in analytical separation methods and potentially in drug delivery systems. To properly tailor the synthesis of oligoAA, and its block co-oligomers synthesized by Reversible-Addition Fragmentation chain Transfer (RAFT) polymerization to applications, detailed knowledge about the chemical structure is needed. Commonly used techniques such as Size Exclusion Chromatography (SEC) and Electrospray Ionization-Mass Spectrometry (ESI-MS) suffer from poor resolution and non-quantitative distributions, respectively. In this work free solution Capillary Electrophoresis (CE) has been thoroughly investigated as an alternative, allowing for the separation of oligoAA by molar mass and the RAFT agent end group. The method was then extended to block co-oligomers of acrylic acid and styrene. Peak capacities up to 426 were observed for these 1D CE separations, 10 times greater than what has been achieved for Liquid Chromatography (LC) of oligostyrenes. To provide a comprehensive insight into the chemical structure of these materials 1H and 13C Nuclear Magnetic Resonance (NMR) spectroscopy was used to provide an accurate average chain length and reveal the presence of branching. The chain length at which branching is detected was investigated with the results showing a degree of branching of 1% of the monomer units in oligoAA with an average chain length of 9 monomer units, which was the shortest chain length at which branching could be detected. This branching is suspected to be a result of both intermolecular and intramolecular transfer reactions. The combination of free solution CE and NMR spectroscopy is shown to provide a near complete elucidation of the chemical structure of oligoAA including the average chain length and branching as well as the chain length and RAFT agent end group distribution. Furthermore, the purity in terms of the dead chains and unreacted RAFT agent was quantified. The use of free solution CE and 1H NMR spectroscopy demonstrated in this work can be routinely applied to oligoelectrolytes and their block co-oligomers to provide an accurate characterization which allows for better design of the materials produced from these oligomers.
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Affiliation(s)
- Adam T Sutton
- Future Industries Institute (FII), University of South Australia, Mawson Lakes, South Australia 5011, Australia; Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - R Dario Arrua
- Future Industries Institute (FII), University of South Australia, Mawson Lakes, South Australia 5011, Australia; Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Marianne Gaborieau
- Western Sydney University, ACROSS, School of Science and Health, Locked Bag 1797, Penrith NSW 2751, Australia; Western Sydney University, Medical Sciences Research Group, Locked Bag 1797, Penrith NSW 2751, Australia
| | - Patrice Castignolles
- Western Sydney University, ACROSS, School of Science and Health, Locked Bag 1797, Penrith NSW 2751, Australia.
| | - Emily F Hilder
- Future Industries Institute (FII), University of South Australia, Mawson Lakes, South Australia 5011, Australia; Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia.
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19
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Desire CT, Khodabandeh A, Schiller TL, Wilson R, Arrua RD, Bon SA, Hilder EF. Preparation of highly interconnected hydrophilic polymers from emulsion templates with improved mechanical properties. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.02.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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20
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Sutton AT, Fraige K, Leme GM, da Silva Bolzani V, Hilder EF, Cavalheiro AJ, Arrua RD, Funari CS. Natural deep eutectic solvents as the major mobile phase components in high-performance liquid chromatography—searching for alternatives to organic solvents. Anal Bioanal Chem 2018; 410:3705-3713. [DOI: 10.1007/s00216-018-1027-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/08/2018] [Accepted: 03/14/2018] [Indexed: 01/27/2023]
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21
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Fornells E, Barnett B, Bailey M, Hilder EF, Shellie RA, Breadmore MC. Evaporative membrane modulation for comprehensive two-dimensional liquid chromatography. Anal Chim Acta 2018; 1000:303-309. [DOI: 10.1016/j.aca.2017.11.053] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/18/2017] [Accepted: 11/20/2017] [Indexed: 02/01/2023]
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22
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23
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Khodabandeh A, Arrua RD, Mansour FR, Thickett SC, Hilder EF. PEO-based brush-type amphiphilic macro-RAFT agents and their assembled polyHIPE monolithic structures for applications in separation science. Sci Rep 2017; 7:7847. [PMID: 28798377 PMCID: PMC5552774 DOI: 10.1038/s41598-017-08423-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 07/10/2017] [Indexed: 11/08/2022] Open
Abstract
Polymerized High Internal Phase Emulsions (PolyHIPEs) were prepared using emulsion-templating, stabilized by an amphiphilic diblock copolymer prepared by reversible addition fragmentation chain transfer (RAFT) polymerization. The diblock copolymer consisted of a hydrophilic poly(ethylene glycol) methyl ether acrylate (PEO MA, average Mn 480) segment and a hydrophobic styrene segment, with a trithiocarbonate end-group. These diblock copolymers were the sole emulsifiers used in stabilizing "inverse" (oil-in-water) high internal phase emulsion templates, which upon polymerization resulted in a polyHIPE exhibiting a highly interconnected monolithic structure. The polyHIPEs were characterized by FTIR spectroscopy, BET surface area measurements, SEM, SEM-EDX, and TGA. These materials were subsequently investigated as stationary phase for high-performance liquid chromatography (HPLC) via in situ polymerization in a capillary format as a 'column housing'. Initial separation assessments in reversed-phase (RP) and hydrophilic interaction liquid chromatographic (HILIC) modes have shown that these polyHIPEs are decorated with different microenvironments amongst the voids or domains of the monolithic structure. Chromatographic results suggested the existence of RP/HILIC mixed mode with promising performance for the separation of small molecules.
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Affiliation(s)
- Aminreza Khodabandeh
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia
- Future Industries Institute, University of South Australia, Building X, Mawson Lakes Campus, GPO Box 2471, Adelaide, SA 5001, Australia
| | - R Dario Arrua
- Future Industries Institute, University of South Australia, Building X, Mawson Lakes Campus, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Fotouh R Mansour
- Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Tasmania, Australia
- Department of Pharmaceutical Analytical Chemistry, Tanta University, Tanta, Egypt
| | - Stuart C Thickett
- School of Physical Sciences, University of Tasmania, Private Bag 75, Hobart, 7001, Australia
| | - Emily F Hilder
- Future Industries Institute, University of South Australia, Building X, Mawson Lakes Campus, GPO Box 2471, Adelaide, SA 5001, Australia.
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24
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Creese ME, Creese MJ, Foley JP, Cortes HJ, Hilder EF, Shellie RA, Breadmore MC. Longitudinal On-Column Thermal Modulation for Comprehensive Two-Dimensional Liquid Chromatography. Anal Chem 2016; 89:1123-1130. [DOI: 10.1021/acs.analchem.6b03279] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mari E. Creese
- Australian
Centre for Research on Separation Science, School of Physical Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Mathew J. Creese
- Allison Laboratories Pty Ltd., Sandy Bay, Tasmania 7005, Australia
| | - Joe P. Foley
- Australian
Centre for Research on Separation Science, School of Physical Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
- Department
of Chemistry, Drexel University, 3141 Chestnut Street, Philadelphia 19104, United States
| | - Hernan J. Cortes
- HJ Cortes Consulting LLC, Midland, Michigan 48642, United States
| | - Emily F. Hilder
- Australian
Centre for Research on Separation Science, School of Physical Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
- Future
Industries Institute, University of South Australia, GPO Box 2471, Adelaide, South Australia 5001, Australia
| | - Robert A. Shellie
- Australian
Centre for Research on Separation Science, School of Physical Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
- Trajan Scientific and Medical, 7 Argent Place, Ringwood, Victoria 3134, Australia
| | - Michael C. Breadmore
- Australian
Centre for Research on Separation Science, School of Physical Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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25
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Karu N, McKercher C, Nichols DS, Davies N, Shellie RA, Hilder EF, Jose MD. Tryptophan metabolism, its relation to inflammation and stress markers and association with psychological and cognitive functioning: Tasmanian Chronic Kidney Disease pilot study. BMC Nephrol 2016; 17:171. [PMID: 27832762 PMCID: PMC5103367 DOI: 10.1186/s12882-016-0387-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 11/03/2016] [Indexed: 12/25/2022] Open
Abstract
Background Adults with chronic kidney disease (CKD) exhibit alterations in tryptophan metabolism, mainly via the kynurenine pathway, due to higher enzymatic activity induced mainly by inflammation. Indoles produced by gut-microflora are another group of tryptophan metabolites related to inflammation and conditions accompanying CKD. Disruptions in tryptophan metabolism have been associated with various neurological and psychological disorders. A high proportion of CKD patients self-report symptoms of depression and/or anxiety and decline in cognitive functioning. This pilot study examines tryptophan metabolism in CKD and explores associations with psychological and cognitive functioning. Methods Twenty-seven adults with CKD were part of 49 patients recruited to participate in a prospective pilot study, initially with an eGFR of 15–29 mL/min/1.73 m2. Only participants with viable blood samples and complete psychological/cognitive data at a 2-year follow-up were included in the reported cross-sectional study. Serum samples were analysed by Liquid Chromatography coupled to Mass Spectrometry, for tryptophan, ten of its metabolites, the inflammation marker neopterin and the hypothalamic–pituitary–adrenal (HPA) axis marker cortisol. Results The tryptophan breakdown index (kynurenine / tryptophan) correlated with neopterin (Pearson R = 0.51 P = 0.006) but not with cortisol. Neopterin levels also correlated with indoxyl sulfate (R = 0.68, P < 0.0001) and 5 metabolites of tryptophan (R range 0.5–0.7, all P ≤ 0.01), which were all negatively related to eGFR (P < 0.05). Higher levels of kynurenic acid were associated with lower cognitive functioning (Spearman R = −0.39, P < 0.05), while indole-3 acetic acid (IAA) was correlated with anxiety and depression (R = 0.52 and P = 0.005, R = 0.39 and P < 0.05, respectively). Conclusions The results of this preliminary study suggest the involvement of inflammation in tryptophan breakdown via the kynurenine pathway, yet without sparing tryptophan metabolism through the 5-HT (serotonin) pathway in CKD patients. The multiple moderate associations between indole-3 acetic acid and psychological measures were a novel finding. The presented pilot data necessitate further exploration of these associations within a large prospective cohort to assess the broader significance of these findings. Electronic supplementary material The online version of this article (doi:10.1186/s12882-016-0387-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Naama Karu
- ACROSS, School of Physical Sciences, University of Tasmania, Hobart, Tasmania, Australia. .,Present address: The Metabolomics Innovation Centre (TMIC), Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada.
| | - Charlotte McKercher
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - David S Nichols
- Central Science Laboratory, University of Tasmania, Hobart, Tasmania, Australia
| | - Noel Davies
- Central Science Laboratory, University of Tasmania, Hobart, Tasmania, Australia
| | - Robert A Shellie
- ACROSS, School of Physical Sciences, University of Tasmania, Hobart, Tasmania, Australia.,Present address: Trajan Scientific and Medical, 7 Argent Place, Ringwood, Victoria, 3134, Australia
| | - Emily F Hilder
- ACROSS, School of Physical Sciences, University of Tasmania, Hobart, Tasmania, Australia.,Present address: Future Industries Institute, University of South Australia, Mawson Lakes Campus, GPO Box 2471, Adelaide, South Australia, 5001, Australia
| | - Matthew D Jose
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia.,Renal unit, Royal Hobart Hospital, Hobart, Tasmania, Australia
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26
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Karu N, Wilson R, Hamede R, Jones M, Woods GM, Hilder EF, Shellie RA. Discovery of Biomarkers for Tasmanian Devil Cancer (DFTD) by Metabolic Profiling of Serum. J Proteome Res 2016; 15:3827-3840. [DOI: 10.1021/acs.jproteome.6b00629] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Naama Karu
- Australian
Centre for Research on Separation Science (ACROSS), School of Physical
Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Richard Wilson
- Central
Science Laboratory (CSL), University of Tasmania, Private Bag
74, Hobart, Tasmania 7001, Australia
| | - Rodrigo Hamede
- School
of Biological Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Menna Jones
- School
of Biological Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Gregory M. Woods
- Menzies
Institute for Medical Research, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Emily F. Hilder
- Australian
Centre for Research on Separation Science (ACROSS), School of Physical
Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Robert A. Shellie
- Australian
Centre for Research on Separation Science (ACROSS), School of Physical
Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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27
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Khodabandeh A, Dario Arrua R, Desire CT, Rodemann T, Bon SAF, Thickett SC, Hilder EF. Preparation of inverse polymerized high internal phase emulsions using an amphiphilic macro-RAFT agent as sole stabilizer. Polym Chem 2016. [DOI: 10.1039/c5py02012c] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oil-in-water (‘inverse’) High Internal Phase Emulsions (HIPEs) have been prepared using an amphiphilic macro-RAFT agent with toluene as the internal dispersed phase (∼80 vol%) and an aqueous monomer solution as the continuous phase.
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Affiliation(s)
- Aminreza Khodabandeh
- Australian Centre for Research on Separation Science (ACROSS)
- School of Physical Sciences
- University of Tasmania
- Tasmania
- Australia
| | - R. Dario Arrua
- Australian Centre for Research on Separation Science (ACROSS)
- School of Physical Sciences
- University of Tasmania
- Tasmania
- Australia
| | - Christopher T. Desire
- Australian Centre for Research on Separation Science (ACROSS)
- School of Physical Sciences
- University of Tasmania
- Tasmania
- Australia
| | - Thomas Rodemann
- Central Science Laboratory
- University of Tasmania
- Hobart 7001
- Australia
| | | | | | - Emily F. Hilder
- Australian Centre for Research on Separation Science (ACROSS)
- School of Physical Sciences
- University of Tasmania
- Tasmania
- Australia
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28
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Peristyy A, Nesterenko PN, Das A, D'Alessandro DM, Hilder EF, Arrua RD. Flow-dependent separation selectivity for organic molecules on metal–organic frameworks containing adsorbents. Chem Commun (Camb) 2016; 52:5301-4. [DOI: 10.1039/c6cc00111d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new effect was discovered which allows changes of selectivity by variation of the mobile phase flow rate.
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Affiliation(s)
- Anton Peristyy
- Australian Centre for Research on Separation Science
- University of Tasmania
- Hobart
- Australia
| | - Pavel N. Nesterenko
- Australian Centre for Research on Separation Science
- University of Tasmania
- Hobart
- Australia
| | - Anita Das
- School of Chemistry F11
- University of Sydney
- Australia
| | | | - Emily F. Hilder
- Australian Centre for Research on Separation Science
- University of Tasmania
- Hobart
- Australia
| | - R. Dario Arrua
- Australian Centre for Research on Separation Science
- University of Tasmania
- Hobart
- Australia
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29
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Candish E, Wirth HJ, Gooley AA, Shellie RA, Hilder EF. Characterization of large surface area polymer monoliths and their utility for rapid, selective solid phase extraction for improved sample clean up. J Chromatogr A 2015; 1410:9-18. [DOI: 10.1016/j.chroma.2015.07.065] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 07/01/2015] [Accepted: 07/14/2015] [Indexed: 11/17/2022]
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30
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Johns C, Hutchinson JP, Guijt RM, Hilder EF, Haddad PR, Macka M, Nesterenko PN, Gaudry AJ, Dicinoski GW, Breadmore MC. Micellar electrokinetic chromatography of organic and peroxide-based explosives. Anal Chim Acta 2015; 876:91-7. [DOI: 10.1016/j.aca.2015.02.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 01/28/2015] [Accepted: 02/27/2015] [Indexed: 10/23/2022]
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31
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Funari CS, Carneiro RL, Khandagale MM, Cavalheiro AJ, Hilder EF. Acetone as a greener alternative to acetonitrile in liquid chromatographic fingerprinting. J Sep Sci 2015; 38:1458-65. [DOI: 10.1002/jssc.201401324] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 02/01/2015] [Accepted: 02/02/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Cristiano Soleo Funari
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences; University of Tasmania; Hobart Tasmania Australia
- Institute of Chemistry; São Paulo State University; Araraquara São Paulo Brazil
- Faculty of Agricultural Sciences; São Paulo State University; Botucatu São Paulo Brazil
| | | | - Manish M. Khandagale
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences; University of Tasmania; Hobart Tasmania Australia
| | | | - Emily F. Hilder
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences; University of Tasmania; Hobart Tasmania Australia
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32
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Dario Arrua R, Hilder EF. Highly ordered monolithic structures by directional freezing and UV-initiated cryopolymerisation. Evaluation as stationary phases in high performance liquid chromatography. RSC Adv 2015. [DOI: 10.1039/c5ra15114g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rigid aligned polymers were prepared by directional freezing and photo-initiated cryopolymerisation and tested as stationary phases in liquid chromatography.
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Affiliation(s)
- R. Dario Arrua
- Australian Centre for Research on Separation Science (ACROSS)
- School of Physical Sciences
- University of Tasmania
- Hobart 7001
- Australia
| | - Emily F. Hilder
- Australian Centre for Research on Separation Science (ACROSS)
- School of Physical Sciences
- University of Tasmania
- Hobart 7001
- Australia
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33
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Soliven A, Dennis GR, Hilder EF, Shalliker RA. The Retention Characteristics of a Novel Phenyl Analytical Scale First Generation Monolith. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.968665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Arianne Soliven
- Australian Centre for Research on Separation Science (ACROSS), School of Science and Health, University of Western Sydney, Parramatta, Australia
- Department of Natural Products and Pharmacognosy, Faculty of Chemistry, Universidad de la República, Montevideo, Uruguay
| | - Gary R. Dennis
- Australian Centre for Research on Separation Science (ACROSS), School of Science and Health, University of Western Sydney, Parramatta, Australia
| | - Emily F. Hilder
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Hobart, Australia
| | - R. Andrew Shalliker
- Australian Centre for Research on Separation Science (ACROSS), School of Science and Health, University of Western Sydney, Parramatta, Australia
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34
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Talebi M, Shellie RA, Hilder EF, Lacher NA, Haddad PR. Semiautomated pH Gradient Ion-Exchange Chromatography of Monoclonal Antibody Charge Variants. Anal Chem 2014; 86:9794-9. [DOI: 10.1021/ac502372r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mohammad Talebi
- Australian
Centre for Research on Separation Science (ACROSS), School of Physical
Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Robert A. Shellie
- Australian
Centre for Research on Separation Science (ACROSS), School of Physical
Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Emily F. Hilder
- Australian
Centre for Research on Separation Science (ACROSS), School of Physical
Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Nathan A. Lacher
- Analytical R&D, Pfizer BioTherapeutics Pharmaceutical Sciences, Chesterfield, Missouri 63017, United States
| | - Paul R. Haddad
- Australian
Centre for Research on Separation Science (ACROSS), School of Physical
Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
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35
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Oliver JD, Sutton AT, Karu N, Phillips M, Markham J, Peiris P, Hilder EF, Castignolles P. Simple and robust monitoring of ethanol fermentations by capillary electrophoresis. Biotechnol Appl Biochem 2014; 62:329-42. [PMID: 25040822 DOI: 10.1002/bab.1269] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 07/06/2014] [Indexed: 11/08/2022]
Abstract
Free-solution capillary electrophoresis (CE), or capillary zone electrophoresis, with direct UV detection was used for the first time for the determination of mono- and disaccharides, sugar alcohols, and ethanol in fermentation broths. Sample preparation proved to be minimal: no derivatization or specific sample purification was needed. The CE conditions can be adapted to the type of fermentation by simply altering the background electrolyte (BGE). KOH (130 mM) or NaOH (130 mM) as the BGE led to the fastest analysis time when monitoring simple fermentations. A mixture of 65 mM NaOH and 65 mM LiOH led to a 19% improvement in resolution for a complex mixture of carbohydrates. Quantification of a simple carbohydrate fermentation by CE showed values in close agreement with that of high-performance anion exchange chromatography and high-performance liquid chromatography (HPLC) on a cation exchange resin. For complex fermentations, quantification of carbohydrates by HPLC and CE led to similar results, whereas CE requires an injection volume of only 10-20 nL. Analysis of an ethanol fermentation of hydrolyzed plant fiber demonstrated the robustness of the separation and detection of carbohydrates, as well as ethanol. Ethanol determination is achieved by coupling the CE method to pressure mobilization, using the same instrument and the same sample.
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Affiliation(s)
- James D Oliver
- University of Western Sydney, Australian Centre for Research on Separation Sciences (ACROSS), School of Science and Health, Parramatta Campus, Penrith NSW, Australia.,University of Western Sydney, School of Science and Health, Hawkesbury Campus, Penrith NSW, Australia
| | - Adam T Sutton
- University of Western Sydney, Australian Centre for Research on Separation Sciences (ACROSS), School of Science and Health, Parramatta Campus, Penrith NSW, Australia
| | - Naama Karu
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences, University of Tasmania, Hobart TAS, Australia
| | - Michael Phillips
- University of Western Sydney, School of Science and Health, Hawkesbury Campus, Penrith NSW, Australia
| | - Julie Markham
- University of Western Sydney, School of Science and Health, Hawkesbury Campus, Penrith NSW, Australia
| | - Paul Peiris
- University of Western Sydney, School of Science and Health, Hawkesbury Campus, Penrith NSW, Australia
| | - Emily F Hilder
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences, University of Tasmania, Hobart TAS, Australia
| | - Patrice Castignolles
- University of Western Sydney, Australian Centre for Research on Separation Sciences (ACROSS), School of Science and Health, Parramatta Campus, Penrith NSW, Australia
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36
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Khandagale MM, Hilder EF, Shellie RA, Haddad PR. Assessment of the complementarity of temperature and flow-rate for response normalisation of aerosol-based detectors. J Chromatogr A 2014; 1356:180-7. [DOI: 10.1016/j.chroma.2014.06.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 06/16/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
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37
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Arrua RD, Hitchcock AP, Hon WB, West M, Hilder EF. Characterization of Polymer Monoliths Containing Embedded Nanoparticles by Scanning Transmission X-ray Microscopy (STXM). Anal Chem 2014; 86:2876-81. [DOI: 10.1021/ac403166u] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R. Dario Arrua
- Australian Centre
for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Private Bag
75, Hobart 7001, Australia
| | - Adam P. Hitchcock
- Department
of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada
| | - Wei Boon Hon
- Australian Centre
for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Private Bag
75, Hobart 7001, Australia
| | - Marcia West
- Faculty of
Health
Sciences Electron Microscopy Facility, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Emily F. Hilder
- Australian Centre
for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Private Bag
75, Hobart 7001, Australia
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38
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Jacobs MR, Hilder EF, Shellie RA. Applications of resistive heating in gas chromatography: A review. Anal Chim Acta 2013; 803:2-14. [DOI: 10.1016/j.aca.2013.04.063] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 04/25/2013] [Accepted: 04/27/2013] [Indexed: 11/28/2022]
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39
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Talebi M, Nordborg A, Gaspar A, Lacher NA, Wang Q, He XZ, Haddad PR, Hilder EF. Charge heterogeneity profiling of monoclonal antibodies using low ionic strength ion-exchange chromatography and well-controlled pH gradients on monolithic columns. J Chromatogr A 2013; 1317:148-54. [DOI: 10.1016/j.chroma.2013.08.061] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 08/13/2013] [Accepted: 08/16/2013] [Indexed: 10/26/2022]
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40
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Arrua RD, Haddad PR, Hilder EF. Monolithic cryopolymers with embedded nanoparticles. II. Capillary liquid chromatography of proteins using charged embedded nanoparticles. J Chromatogr A 2013; 1311:121-6. [DOI: 10.1016/j.chroma.2013.08.077] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 08/20/2013] [Accepted: 08/21/2013] [Indexed: 01/01/2023]
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41
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Desire CT, Arrua RD, Talebi M, Lacher NA, Hilder EF. Poly(ethylene glycol)-based monolithic capillary columns for hydrophobic interaction chromatography of immunoglobulin G subclasses and variants. J Sep Sci 2013; 36:2782-92. [DOI: 10.1002/jssc.201300558] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 06/14/2013] [Accepted: 06/14/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Christopher T. Desire
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry, University of Tasmania; Tasmania Australia
| | - R. Dario Arrua
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry, University of Tasmania; Tasmania Australia
| | - Mohammad Talebi
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry, University of Tasmania; Tasmania Australia
| | - Nathan A. Lacher
- Analytical R&D; Pfizer Biotherapeutics Pharmaceutical Sciences; Chesterfield MO USA
| | - Emily F. Hilder
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry, University of Tasmania; Tasmania Australia
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42
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Oliver JD, Gaborieau M, Hilder EF, Castignolles P. Simple and robust determination of monosaccharides in plant fibers in complex mixtures by capillary electrophoresis and high performance liquid chromatography. J Chromatogr A 2013; 1291:179-86. [PMID: 23608404 DOI: 10.1016/j.chroma.2013.03.041] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 03/17/2013] [Accepted: 03/18/2013] [Indexed: 11/29/2022]
Abstract
Carbohydrates partially liberated by acid hydrolysis of plant fiber can be separated by hydrophilic interaction liquid chromatography (HILIC), ligand-exchange liquid chromatography or other forms of LC with ion-exchange columns. However, the robust hydrogen-exchange columns show co-elution of galactose, xylose and mannose. Free solution capillary electrophoresis (CE) can be used without derivatization at pH 12.6 and was found to provide a higher resolution of galactose and xylose than common LC with no sample pre-treatment required, other than dilution, within 26min. CE was able to provide resolution higher than 0.79 for all separated carbohydrates, and the RSDs of determined concentrations lower than 10% for concentrations above 1.3gL(-1). A quantitative comparison between CE and HPLC revealed that up to 22% more carbohydrates are quantified with CE. Direct UV detection in CE of mono- and disaccharides is unexpectedly possible at 270nm. NMR analysis shows that alkaline degradation is too slow to explain this detection. This CE detection sensitivity is increased by the electric field and our CE and NMR analyses are consistent with a photo-oxidation process.
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Affiliation(s)
- James D Oliver
- University of Western Sydney (UWS), Australian Centre for Research on Separation Science (ACROSS), School of Science and Health, Penrith, NSW 2751, Australia.
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43
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Causon TJ, Hilder EF, Nischang I. Impact of mobile phase composition on the performance of porous polymeric monoliths in the elution of small molecules. J Chromatogr A 2012; 1263:108-12. [DOI: 10.1016/j.chroma.2012.09.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 09/09/2012] [Accepted: 09/12/2012] [Indexed: 10/27/2022]
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44
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Affiliation(s)
- Esme Candish
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
- SGE Analytical Science; Ringwood Victoria Australia
| | - Andrew Gooley
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
- SGE Analytical Science; Ringwood Victoria Australia
| | | | | | - Robert A. Shellie
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
| | - Emily F. Hilder
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
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45
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Candish E, Gooley A, Wirth HJ, Dawes PA, Shellie RA, Hilder EF. A simplified approach to direct solid-phase extraction: mass spectrometry. J Sep Sci 2012. [DOI: 10.1002/jssc.201270141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Esme Candish
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
- SGE Analytical Science; Ringwood Victoria Australia
| | - Andrew Gooley
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
- SGE Analytical Science; Ringwood Victoria Australia
| | | | | | - Robert A. Shellie
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
| | - Emily F. Hilder
- Australian Centre for Research on Separation Science (ACROSS); School of Chemistry; Hobart Tasmania Australia
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46
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Arrua RD, Talebi M, Causon TJ, Hilder EF. Review of recent advances in the preparation of organic polymer monoliths for liquid chromatography of large molecules. Anal Chim Acta 2012; 738:1-12. [DOI: 10.1016/j.aca.2012.05.052] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 05/23/2012] [Accepted: 05/28/2012] [Indexed: 12/17/2022]
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47
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Causon TJ, Cortes HJ, Shellie RA, Hilder EF. Temperature Pulsing for Controlling Chromatographic Resolution in Capillary Liquid Chromatography. Anal Chem 2012; 84:3362-8. [DOI: 10.1021/ac300161b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tim J. Causon
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
| | - Hernan J. Cortes
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
- HJ Cortes Consulting LLC, Midland, Michigan 48642, United States
| | - Robert A. Shellie
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
| | - Emily F. Hilder
- Australian
Centre for Research
on Separation Science, School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia,
7001
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48
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Henderson RD, Guijt RM, Andrewartha L, Lewis TW, Rodemann T, Henderson A, Hilder EF, Haddad PR, Breadmore MC. Lab-on-a-Chip device with laser-patterned polymer electrodes for high voltage application and contactless conductivity detection. Chem Commun (Camb) 2012; 48:9287-9. [DOI: 10.1039/c2cc33693f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Arrua RD, Causon TJ, Hilder EF. Recent developments and future possibilities for polymer monoliths in separation science. Analyst 2012; 137:5179-89. [DOI: 10.1039/c2an35804b] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Blanco GA, Nai YH, Hilder EF, Shellie RA, Dicinoski GW, Haddad PR, Breadmore MC. Identification of Inorganic Improvised Explosive Devices Using Sequential Injection Capillary Electrophoresis and Contactless Conductivity Detection. Anal Chem 2011; 83:9068-75. [DOI: 10.1021/ac2020195] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gustavo A. Blanco
- Australian Centre for Research on Separation Science, School of Chemistry, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia
| | - Yi H. Nai
- Australian Centre for Research on Separation Science, School of Chemistry, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia
| | - Emily F. Hilder
- Australian Centre for Research on Separation Science, School of Chemistry, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia
| | - Robert A. Shellie
- Australian Centre for Research on Separation Science, School of Chemistry, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia
| | - Greg W. Dicinoski
- Australian Centre for Research on Separation Science, School of Chemistry, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia
| | - Paul R. Haddad
- Australian Centre for Research on Separation Science, School of Chemistry, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia
| | - Michael C. Breadmore
- Australian Centre for Research on Separation Science, School of Chemistry, Faculty of Science, Engineering and Technology, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia
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