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Vanhinsbergh C, Hook EC, Oxby N, Dickman MJ. Optimization of orthogonal separations for the analysis of oligonucleotides using 2D-LC. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1227:123812. [PMID: 37454408 DOI: 10.1016/j.jchromb.2023.123812] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023]
Abstract
Oligonucleotides are commonly analysed using one dimensional chromatography (1D-LC) to resolve and characterise manufacturing impurities, structural isomers and (in respect to emerging oligonucleotide therapeutics) drug substance and drug product. Due to low selectivity and co-elution of closely related oligonucleotides using 1D-LC, analyte resolution is challenged. This leads to the requirement for improved analytical methods. Multidimensional chromatography has demonstrated utility in a range of applications as it increases peak capacity using orthogonal separations, however there are limited studies demonstrating the 2D-LC analysis of closely related oligonucleotides. In this study we optimised OGN size and sequence based separations using a variety of 1D-LC methods and coupled these orthogonal modes of chromatography within a 2D-LC workflow. Theoretical 2D-LC workflows were evaluated for optimal orthogonality using the minimum convex hull metric. The most orthogonal workflow identified in this study was ion-pair reversed phase using tributylammonium acetate (IP-RP-TBuAA) coupled with strong anion exchange in conjunction with sodium perchlorate (SAX-NaClO4) at high mobile phase pH. We developed a heart-cut (IP-RP-TBuAA)-(SAX-NaClO4) 2D-LC method for analysis of closely related size and sequence variant OGNs and OGN manufacturing impurities. The 2D-LC method resulted in an increased orthogonality and a reduction in co-elution (or close elution). Application of a UV based reference mapping strategy in conjunction with the 2D-LC method demonstrated a reduction in analytical complexity by reducing the reliance on mass based detection methods.
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Affiliation(s)
- Christina Vanhinsbergh
- Department of Chemical and Biological Engineering, Mappin Street, University of Sheffield, S1 3JD, UK
| | - Elliot C Hook
- GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Herts SG1 2NY, UK
| | - Nicola Oxby
- GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Herts SG1 2NY, UK
| | - Mark J Dickman
- Department of Chemical and Biological Engineering, Mappin Street, University of Sheffield, S1 3JD, UK.
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2
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Zagst H, Elgert C, Behrends S, Wätzig H. Combination of strong anion exchange liquid chromatography with microchip capillary electrophoresis sodium dodecyl sulfate for rapid two-dimensional separations of complex protein mixtures. Anal Bioanal Chem 2022; 414:1699-1712. [PMID: 34870722 PMCID: PMC8761713 DOI: 10.1007/s00216-021-03797-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/13/2021] [Accepted: 11/19/2021] [Indexed: 11/03/2022]
Abstract
Two-dimensional separations provide a simple way to increase the resolution and peak capacity of complex protein separations. The feasibility of a recently developed instrumental approach for two-dimensional separations of proteins was evaluated. The approach is based on the general principle of two-dimensional gel electrophoresis. In the first dimension, semi-preparative strong anion exchange high-performance liquid chromatography is utilized and fractions are collected by means of a fraction collector. They are subsequently analyzed in the second dimension with microchip capillary electrophoresis sodium dodecyl sulfate. Microchip capillary electrophoresis provides the necessary speed (approximately 1 min/fraction) for short analysis. In this study, three different samples were investigated. Different constructs of soluble guanylyl cyclase were expressed in Sf9-cells using the baculovirus expression system. Cell lysates were analyzed and the resulting separations were compared. In our experimental setup, the soluble guanylyl cyclase was identified among hundreds of other proteins in these cell lysates, indicating its potential for screening, process control, or analysis. The results were validated by immunoblotting. Samples from Chinese hamster ovary cell culture before and after a purification step were investigated and approximately 9% less impurities could be observed. The separation patterns obtained for human plasma are closely similar to patterns obtained with two-dimensional gel electrophoresis and a total of 218 peaks could be observed. Overall, the approach was well applicable to all samples and, based on these results, further directions for improvements were identified. .
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Affiliation(s)
- Holger Zagst
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, 38106, Braunschweig, Germany
| | - Christin Elgert
- Technische Universität Braunschweig, Institute of Pharmacology, Toxicology and Clinical Pharmacy, Mendelssohnstraße 1, 38106, Braunschweig, Germany
| | - Sönke Behrends
- Technische Universität Braunschweig, Institute of Pharmacology, Toxicology and Clinical Pharmacy, Mendelssohnstraße 1, 38106, Braunschweig, Germany
| | - Hermann Wätzig
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, 38106, Braunschweig, Germany.
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3
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Badiye A, Kapoor N, Shukla RK. Detection and separation of proteins using micro/nanofluidics devices. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2022; 186:59-84. [PMID: 35033290 DOI: 10.1016/bs.pmbts.2021.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Microfluidics is the technology or system wherein the behavior of fluids' is studied onto a miniaturized device composed of chambers and tunnels. In biological and biomedical sciences, microfluidic technology/system or device serves as an ultra-high-output approach capable of detecting and separating the biomolecules present even in trace quantities. Given the essential role of protein, the identification and quantification of proteins help understand the various living systems' biological function regulation. Microfluidics has enormous potential to enable biological investigation at the cellular and molecular level and maybe a fair substitution of the sophisticated instruments/equipment used for proteomics, genomics, and metabolomics analysis. The current advancement in microfluidic systems' development is achieving momentum and opening new avenues in developing innovative and hybrid methodologies/technologies. This chapter attempts to expound the micro/nanofluidic systems/devices for their wide-ranging application to detect and separate protein. It covers microfluidic chip electrophoresis, microchip gel electrophoresis, and nanofluidic systems as protein separation systems, while methods such as spectrophotometric, mass spectrometry, electrochemical detection, magneto-resistive sensors and dynamic light scattering (DLS) are discussed as proteins' detection system.
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Affiliation(s)
- Ashish Badiye
- Department of Forensic Science, Government Institute of Forensic Sciences, Nagpur, Maharashtra, India
| | - Neeti Kapoor
- Department of Forensic Science, Government Institute of Forensic Sciences, Nagpur, Maharashtra, India
| | - Ritesh K Shukla
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Ahmedabad, Gujarat, India.
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4
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Goyon A, Yehl P, Zhang K. Characterization of therapeutic oligonucleotides by liquid chromatography. J Pharm Biomed Anal 2020; 182:113105. [PMID: 32004766 DOI: 10.1016/j.jpba.2020.113105] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/21/2019] [Accepted: 01/08/2020] [Indexed: 12/27/2022]
Abstract
Marketed therapies in the pharmaceutical landscape are rapidly evolving and getting more diverse. Small molecule medicines have dominated in the past while antibodies have grown dramatically in recent years. However, the failure of traditional small and large molecules in accessing certain targets has led to increased R&D efforts to develop alternative modalities. Therapeutic oligonucleotides (ONs) can accurately be directed against their ribonucleic acid (RNA) target and represent a promising approach in previously untreated diseases. Established automated synthesis of ONs coupled with chemical improvements and the advance of new drug delivery technologies has recently brought ONs to a heightened level of interest. The first part of the present review describes the different classes of oligonucleotides, namely antisense oligonucleotide (ASO), small interfering RNA (siRNA), microRNA (miRNA), aptamer and immunostimulatory ON, with a focus on their delivery systems relevant for future analytical characterization. The second part reviews the typical impurities in therapeutic ON products. The third part discusses the use of historical methods anion exchange chromatography (AEX), ion-pair reversed phase liquid chromatography (IP-RP), mixed-mode chromatography (MMC) and recent analytical methodologies of hydrophilic interaction liquid chromatography (HILIC), two-dimensional liquid chromatography (2D-LC) mass spectrometry for the characterization of ASO and siRNA modalities. The effects of physicochemical properties of RPLC columns and ion-pair agents on ON separation are specifically addressed with possible future directions for method development provided. Finally, some innovative analytical developments for the analysis of siRNAs and their delivery materials to pave the way toward the use of multi-attribute methods in the near future are discussed.
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Affiliation(s)
- Alexandre Goyon
- Small Molecules Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Peter Yehl
- Small Molecules Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Kelly Zhang
- Small Molecules Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
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5
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Thakur P, Estevez M, Lobue PA, Limbach PA, Addepalli B. Improved RNA modification mapping of cellular non-coding RNAs using C- and U-specific RNases. Analyst 2020; 145:816-827. [PMID: 31825413 PMCID: PMC7002195 DOI: 10.1039/c9an02111f] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Locating ribonucleoside modifications within an RNA sequence requires digestion of the RNA into oligoribonucleotides of amenable size for subsequent analysis by LC-MS (liquid chromatography-mass spectrometry). This approach, widely referred to as RNA modification mapping, is facilitated through ribonucleases (RNases) such as T1 (guanosine-specific), U2 (purine-selective) and A (pyrimidine-specific) among others. Sequence coverage by these enzymes depends on positioning of the recognized nucleobase (such as guanine or purine or pyrimidine) in the sequence and its ribonucleotide composition. Using E. coli transfer RNA (tRNA) and ribosomal RNA (rRNA) as model samples, we demonstrate the ability of complementary nucleobase-specific ribonucleases cusativin (C-specific) and MC1 (U-specific) to generate digestion products that facilitate confident mapping of modifications in regions such as G-rich and pyrimidine-rich segments of RNA, and to distinguish C to U sequence differences. These enzymes also increase the number of oligonucleotide digestion products that are unique to a specific RNA sequence. Further, with these additional RNases, multiple modifications can be localized with high confidence in a single set of experiments with minimal dependence on the individual tRNA abundance in a mixture. The sequence overlaps observed with these complementary digestion products and that of RNase T1 improved sequence coverage to 75% or above. A similar level of sequence coverage was also observed for the 2904 nt long 23S rRNA indicating their utility has no dependence on RNA size. Wide-scale adoption of these additional modification mapping tools could help expedite the characterization of modified RNA sequences to understand their structural and functional role in various living systems.
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Affiliation(s)
- Priti Thakur
- Rieveschl Laboratories for Mass Spectrometry, Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221, USA.
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Two-dimensional liquid chromatography-mass spectrometry for the characterization of modified oligonucleotide impurities. Anal Biochem 2018; 556:45-52. [PMID: 29936097 DOI: 10.1016/j.ab.2018.06.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/19/2018] [Accepted: 06/20/2018] [Indexed: 11/22/2022]
Abstract
A 2D-LC system coupled with a TOF mass spectrometer has been evaluated for its capabilities to provide enhanced characterization of oligonucleotide impurities. To address loop limitations in the total volume (40 μL) sampled across 1D peaks, a column trap was incorporated between the 1D and 2D columns. The main advantages of the column trap include reduction of the total number of sequential 2D runs required to fully sample broad 1D peaks, and most importantly, reduction of the error in quantitative determination of the components in broad 1D peaks by avoiding the numerical stitching of data from several 2D runs. Comprehensive RP x IP provided orthogonal separation despite its lower 1D resolution. In contrast, IP x IP did not provide orthogonal separation. RP x IP using the direct on-line extended heart-cutting system with the column trap showed additional benefits, in the elimination of off-line fractionation and sample handling errors and was successfully applied in a pH stability study of a crude oligonucleotide. SAX x IP successfully separated the isobaric "n+16" doublet of the "n + O" and "[n + S-O]" impurity species, a feat not currently possible by mass spectrometry alone or 1D-LC, demonstrating the importance of the added capabilities of the 2D-LC approach.
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Rodríguez-Ruiz I, Babenko V, Martínez-Rodríguez S, Gavira JA. Protein separation under a microfluidic regime. Analyst 2017; 143:606-619. [PMID: 29214270 DOI: 10.1039/c7an01568b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Lab-on-a-Chip (LoC), or micro-Total Analysis Systems (μTAS), is recognized as a powerful analytical technology with high capabilities, though end-user products for protein purification are still far from being available on the market. Remarkable progress has been achieved in the separation of nucleic acids and proteins using electrophoretic microfluidic devices, while pintsize devices have been developed for protein isolation according to miniaturized chromatography principles (size, charge, affinity, etc.). In this work, we review the latest advances in the fabrication of components, detection methods and commercial implementation for the separation of biological macromolecules based on microfluidic systems, with some critical remarks on the perspectives of their future development towards standardized microfluidic systems and protocols. An outlook on the current needs and future applications is also presented.
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Affiliation(s)
| | - V Babenko
- Laboratorio de Estudios Cristalograficos, Instituto Andaluz de Ciencias de la Tierra, CSIC-University of Granada, Avenida de las Palmeras 4, 18100 Armilla, Granada, Spain.
| | - S Martínez-Rodríguez
- Department of Biochemistry and Molecular Biology III and Immunology. University of Granada, Granada, Spain
| | - J A Gavira
- Laboratorio de Estudios Cristalograficos, Instituto Andaluz de Ciencias de la Tierra, CSIC-University of Granada, Avenida de las Palmeras 4, 18100 Armilla, Granada, Spain.
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8
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Li L, Leone T, Foley JP, Welch CJ. Separation of small interfering RNA stereoisomers using reversed-phase ion-pairing chromatography. J Chromatogr A 2017; 1500:84-88. [DOI: 10.1016/j.chroma.2017.04.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/05/2017] [Accepted: 04/07/2017] [Indexed: 11/25/2022]
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9
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Ranjbar L, Foley JP, Breadmore MC. Multidimensional liquid-phase separations combining both chromatography and electrophoresis – A review. Anal Chim Acta 2017; 950:7-31. [DOI: 10.1016/j.aca.2016.10.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/17/2016] [Accepted: 10/20/2016] [Indexed: 01/31/2023]
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Álvarez Porebski PW, Lynen F. Offline comprehensive liquid chromatography in combination with a Deoxyribonuclease I immobilized enzymatic reactor for selective screening of oligonucleotide mixtures. J Chromatogr A 2016; 1451:164-168. [PMID: 27208984 DOI: 10.1016/j.chroma.2016.05.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 05/01/2016] [Accepted: 05/04/2016] [Indexed: 10/21/2022]
Abstract
The development of a comprehensive ion-pair chromatography-immobilized enzyme reactor×ion-pair chromatography (IPC-IMER×IPC) methodology for the advanced characterization of DNA/RNA oligonucleotides (ONs) mixtures has been carried out. More in detail, a DNase I IMER has been coupled to IPC in the post column configuration, followed by the collection of the eluting fractions and reanalysis by IPC. The effect of the mobile phase over the IMER activity was qualitatively evaluated. The methodology proved to generate relevant ON degradation profiles that might be correlated with the ON stability towards nucleases. Moreover, this platform shows potential for its further implementation in selective analysis of ON mixtures and in mapping studies.
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Affiliation(s)
- Piotr Wiktor Álvarez Porebski
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Universiteit Gent, Krijgslaan 281 S4-bis, 9000 Gent, Belgium.
| | - Frederic Lynen
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Universiteit Gent, Krijgslaan 281 S4-bis, 9000 Gent, Belgium.
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11
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Barciszewska M, Sucha A, Bałabańska S, Chmielewski MK. Gel electrophoresis in a polyvinylalcohol coated fused silica capillary for purity assessment of modified and secondary-structured oligo- and polyribonucleotides. Sci Rep 2016; 6:19437. [PMID: 26777121 PMCID: PMC4726012 DOI: 10.1038/srep19437] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 12/14/2015] [Indexed: 12/12/2022] Open
Abstract
Application of a polyvinylalcohol-coated (PVA-coated) capillary in capillary gel electrophoresis (CGE) enables the selective separation of oligoribonucleotides and their modifications at high resolution. Quality assessment of shorter oligomers of small interfering RNA (siRNA) is of key importance for ribonucleic acid (RNA) technology which is increasingly being applied in medical applications. CGE is a technique of choice for calculation of chemically synthesized RNAs and their modifications which are frequently obtained as a mixture including shorter oligoribonucleotides. The use of CGE with a PVA-coated capillary to analyze siRNA mixtures presents an alternative to conventionally employed techniques. Here, we present study on identification of the length and purity of RNA mixture ingredients by using PVA-coated capillaries. Also, we demonstrate the use of PVA-coated capillaries to identify and separate phosphorylated siRNAs and secondary structures (e.g. siRNA duplexes).
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Affiliation(s)
- Martyna Barciszewska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
| | - Agnieszka Sucha
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, Rubież 46, 61-612 Poznań, Poland
- FutureSynthesis sp. z o.o. ul, Rubież 46, 61-612 Poznań, Poland
| | - Sandra Bałabańska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
| | - Marcin K. Chmielewski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
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Álvarez Porebski PW, Gyssels E, Madder A, Lynen F. Hyphenation of a Deoxyribonuclease I immobilized enzyme reactor with liquid chromatography for the online stability evaluation of oligonucleotides. J Chromatogr A 2015; 1422:18-26. [PMID: 26515385 DOI: 10.1016/j.chroma.2015.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 10/05/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
Abstract
The stability of antisense oligonucleotides (ONs) toward nucleases is a key aspect for their possible implementation as therapeutic agents. Typically, ON stability studies are performed off-line, where the ONs are incubated with nucleases in solution, followed by their analysis. The problematics of off-line processing render the detailed comparison of relative ON stability quite challenging. Therefore, the development of an online platform based on an immobilized enzyme reactor (IMER) coupled to liquid chromatography (LC) was developed as an alternative for improved ON stability testing. More in detail, Deoxyribonuclease I (DNase I) was immobilized on epoxy-silica particles of different pore sizes and packed into a column for the construction of an IMER. Subsequently, the hyphenation of the IMER with ion-pair chromatography (IPC) and ion-exchange chromatography (IEC) was evaluated, leading to the successful development of two online methodologies: IMER-IPC and IMER-IEC. More specifically, natural and modified DNA and RNA oligonucleotides were used for testing the performance of the methodologies. Both methodologies proved to be simple, automatable, fast and highly reproducible for the quantitative and qualitative evaluation of ON degradation. In addition, the extended IMER life time in combination with a more straightforward control of the reaction kinetics substantiate the applicability of the IMER-LC platform for ON stability tests and its implementation in routine and research laboratories.
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Affiliation(s)
- Piotr Wiktor Álvarez Porebski
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Universiteit Gent, Krijgslaan 281 S4-bis, 9000 Gent, Belgium.
| | - Ellen Gyssels
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Universiteit Gent, Krijgslaan 281 S4-bis, 9000 Gent, Belgium.
| | - Annemieke Madder
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Universiteit Gent, Krijgslaan 281 S4-bis, 9000 Gent, Belgium.
| | - Frederic Lynen
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Universiteit Gent, Krijgslaan 281 S4-bis, 9000 Gent, Belgium.
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Breadmore MC, Tubaon RM, Shallan AI, Phung SC, Abdul Keyon AS, Gstoettenmayr D, Prapatpong P, Alhusban AA, Ranjbar L, See HH, Dawod M, Quirino JP. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2012-2014). Electrophoresis 2015; 36:36-61. [DOI: 10.1002/elps.201400420] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/25/2014] [Accepted: 09/25/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Michael C. Breadmore
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Ria Marni Tubaon
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Aliaa I. Shallan
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Sui Ching Phung
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Aemi S. Abdul Keyon
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
- Faculty of Science; Department of Chemistry, Universiti Teknologi Malaysia; Johor Malaysia
| | - Daniel Gstoettenmayr
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Pornpan Prapatpong
- Faculty of Pharmacy; Department of Pharmaceutical Chemistry, Mahidol University; Rajathevee Bangkok Thailand
| | - Ala A. Alhusban
- Faculty of Health Sciences, School of Pharmacy; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Leila Ranjbar
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Hong Heng See
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
- Ibnu Sina Institute for Fundamental Science Studies; Universiti Teknologi Malaysia; Johor Malaysia
| | - Mohamed Dawod
- Department of Chemistry; University of Michigan; Ann Arbor MI USA
- Faculty of Pharmacy; Department of Analytical Chemistry, Al-Azhar University; Cairo Egypt
| | - Joselito P. Quirino
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
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