1
|
Three-dimensional manganese cobaltate: a highly conductive electrocatalyst for paraoxon-ethyl detection. Mikrochim Acta 2022; 189:315. [PMID: 35927374 DOI: 10.1007/s00604-022-05416-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 07/10/2022] [Indexed: 10/16/2022]
Abstract
The synthesis of manganese cobaltate (MnCo2O4) with the hybrid three-dimensional architecture has been developed as an electrocatalyst for the electrochemical sensing of paraoxon-ethyl (PEL). The detailed physicochemical and structural characterization of MnCo2O4 is meticulously examined. The MnCo2O4-modified screen-printed carbon electrode (SPCE) exhibits good electrocatalytic activity for the reduction of PEL compared with the bare SPCE due to numerous unique properties. By profiting from these advantages, the proposed MnCo2O4/SPCE shows superior sensing performance toward the determination of PEL, including low cathodic peak potential (- 0.64 V), wide detection range (0.015-435 µM), low limit of detection (0.002 µM), high detection sensitivity (2.30 µA µM-1 cm-2), excellent selectivity, and good reproducibility. Notably, the electrochemical performance of the MnCo2O4-based electrocatalyst is superior to those previously reported in the literatures. The practical application of the MnCo2O4/SPCE is effectively assessed in the analysis of food and water samples with satisfied recoveries of 96.00-99.35%. The superior performance of the proposed MnCo2O4 electrocatalyst holds considerable potential for future development of electrochemical sensing platforms.
Collapse
|
2
|
Vázquez OA, Rahman MS. An ecotoxicological approach to microplastics on terrestrial and aquatic organisms: A systematic review in assessment, monitoring and biological impact. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 84:103615. [PMID: 33607259 DOI: 10.1016/j.etap.2021.103615] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/03/2021] [Accepted: 02/11/2021] [Indexed: 05/06/2023]
Abstract
Marine and land plastic debris biodegrades at micro- and nanoscales through progressive fragmentation. Oceanographic model studies confirm the presence of up to ∼2.41 million tons of microplastics across the Atlantic, Pacific, and Indian subtropical gyres. Microplastics distribute from primary (e.g., exfoliating cleansers) and secondary (e.g., chemical deterioration) sources in the environment. This anthropogenic phenomenon poses a threat to the flora and fauna of terrestrial and aquatic ecosystems as ingestion and entanglement cases increase over time. This review focuses on the impact of microplastics across taxa at suggested environmentally relevant concentrations, and advances the groundwork for future ecotoxicological-based research on microplastics including the main points: (i) adhesion of chemical pollutants (e.g., PCBs); (ii) biological effects (e.g., bioaccumulation, biomagnification, biotransportation) in terrestrial and aquatic organisms; (iii) physico-chemical properties (e.g., polybrominated diphenyl ethers) and biodegradation pathways in the environment (e.g., chemical stress, heat stress); and (iv) an ecotoxicological prospect for optimized impact assessments.
Collapse
Affiliation(s)
- Omar A Vázquez
- Biochemistry and Molecular Biology Program, University of Texas Rio Grande Valley, Brownsville, TX, USA
| | - Md Saydur Rahman
- Biochemistry and Molecular Biology Program, University of Texas Rio Grande Valley, Brownsville, TX, USA; School of Earth, Environmental, and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, TX, USA.
| |
Collapse
|
3
|
Hyphenated TLC as a Tool in the Effect-Directed Discovery of Bioactive Natural Products. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10031123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Complex samples such as botanical extracts contain hundreds of compounds. Since we can only identify compounds that are stable, extractable, separable and detectable from complex botanical extracts, minimal sample treatment and different detection methods are essential. A combination of high-performance thin-layer chromatography (HPTLC) with non-targeted screening via bioassays (enzymes), microchemical and biological (microorganisms) detection allows for the fast and quantitative bioprofiling of complex samples. Further hyphenation of HPTLC with spectroscopic methods of identification enables targeted identification of bioactive natural products via Effect Directed Analysis (EDA).
Collapse
|
4
|
Legradi JB, Di Paolo C, Kraak MHS, van der Geest HG, Schymanski EL, Williams AJ, Dingemans MML, Massei R, Brack W, Cousin X, Begout ML, van der Oost R, Carion A, Suarez-Ulloa V, Silvestre F, Escher BI, Engwall M, Nilén G, Keiter SH, Pollet D, Waldmann P, Kienle C, Werner I, Haigis AC, Knapen D, Vergauwen L, Spehr M, Schulz W, Busch W, Leuthold D, Scholz S, vom Berg CM, Basu N, Murphy CA, Lampert A, Kuckelkorn J, Grummt T, Hollert H. An ecotoxicological view on neurotoxicity assessment. ENVIRONMENTAL SCIENCES EUROPE 2018; 30:46. [PMID: 30595996 PMCID: PMC6292971 DOI: 10.1186/s12302-018-0173-x] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 10/31/2018] [Indexed: 05/04/2023]
Abstract
The numbers of potential neurotoxicants in the environment are raising and pose a great risk for humans and the environment. Currently neurotoxicity assessment is mostly performed to predict and prevent harm to human populations. Despite all the efforts invested in the last years in developing novel in vitro or in silico test systems, in vivo tests with rodents are still the only accepted test for neurotoxicity risk assessment in Europe. Despite an increasing number of reports of species showing altered behaviour, neurotoxicity assessment for species in the environment is not required and therefore mostly not performed. Considering the increasing numbers of environmental contaminants with potential neurotoxic potential, eco-neurotoxicity should be also considered in risk assessment. In order to do so novel test systems are needed that can cope with species differences within ecosystems. In the field, online-biomonitoring systems using behavioural information could be used to detect neurotoxic effects and effect-directed analyses could be applied to identify the neurotoxicants causing the effect. Additionally, toxic pressure calculations in combination with mixture modelling could use environmental chemical monitoring data to predict adverse effects and prioritize pollutants for laboratory testing. Cheminformatics based on computational toxicological data from in vitro and in vivo studies could help to identify potential neurotoxicants. An array of in vitro assays covering different modes of action could be applied to screen compounds for neurotoxicity. The selection of in vitro assays could be guided by AOPs relevant for eco-neurotoxicity. In order to be able to perform risk assessment for eco-neurotoxicity, methods need to focus on the most sensitive species in an ecosystem. A test battery using species from different trophic levels might be the best approach. To implement eco-neurotoxicity assessment into European risk assessment, cheminformatics and in vitro screening tests could be used as first approach to identify eco-neurotoxic pollutants. In a second step, a small species test battery could be applied to assess the risks of ecosystems.
Collapse
Affiliation(s)
- J. B. Legradi
- Institute for Environmental Research, Department of Ecosystem Analysis, ABBt–Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
- Environment and Health, VU University, 1081 HV Amsterdam, The Netherlands
| | - C. Di Paolo
- Institute for Environmental Research, Department of Ecosystem Analysis, ABBt–Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| | - M. H. S. Kraak
- FAME-Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94248, 1090 GE Amsterdam, The Netherlands
| | - H. G. van der Geest
- FAME-Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94248, 1090 GE Amsterdam, The Netherlands
| | - E. L. Schymanski
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 6 Avenue du Swing, 4367 Belvaux, Luxembourg
| | - A. J. Williams
- National Center for Computational Toxicology, Office of Research and Development, U.S. Environmental Protection Agency, 109 T.W. Alexander Dr., Research Triangle Park, NC 27711 USA
| | - M. M. L. Dingemans
- KWR Watercycle Research Institute, Groningenhaven 7, 3433 PE Nieuwegein, The Netherlands
| | - R. Massei
- Department Effect-Directed Analysis, Helmholtz Centre for Environmental Research-UFZ, Permoserstr. 15, Leipzig, Germany
| | - W. Brack
- Department Effect-Directed Analysis, Helmholtz Centre for Environmental Research-UFZ, Permoserstr. 15, Leipzig, Germany
| | - X. Cousin
- Ifremer, UMR MARBEC, Laboratoire Adaptation et Adaptabilités des Animaux et des Systèmes, Route de Maguelone, 34250 Palavas-les-Flots, France
- INRA, UMR GABI, INRA, AgroParisTech, Domaine de Vilvert, Batiment 231, 78350 Jouy-en-Josas, France
| | - M.-L. Begout
- Ifremer, Laboratoire Ressources Halieutiques, Place Gaby Coll, 17137 L’Houmeau, France
| | - R. van der Oost
- Department of Technology, Research and Engineering, Waternet Institute for the Urban Water Cycle, Amsterdam, The Netherlands
| | - A. Carion
- Laboratory of Evolutionary and Adaptive Physiology, Institute of Life, Earth and Environment, University of Namur, 5000 Namur, Belgium
| | - V. Suarez-Ulloa
- Laboratory of Evolutionary and Adaptive Physiology, Institute of Life, Earth and Environment, University of Namur, 5000 Namur, Belgium
| | - F. Silvestre
- Laboratory of Evolutionary and Adaptive Physiology, Institute of Life, Earth and Environment, University of Namur, 5000 Namur, Belgium
| | - B. I. Escher
- Department of Cell Toxicology, Helmholtz Centre for Environmental Research-UFZ, Permoserstr. 15, 04318 Leipzig, Germany
- Eberhard Karls University Tübingen, Environmental Toxicology, Center for Applied Geosciences, 72074 Tübingen, Germany
| | - M. Engwall
- MTM Research Centre, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Örebro, Sweden
| | - G. Nilén
- MTM Research Centre, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Örebro, Sweden
| | - S. H. Keiter
- MTM Research Centre, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Örebro, Sweden
| | - D. Pollet
- Faculty of Chemical Engineering and Biotechnology, University of Applied Sciences Darmstadt, Stephanstrasse 7, 64295 Darmstadt, Germany
| | - P. Waldmann
- Faculty of Chemical Engineering and Biotechnology, University of Applied Sciences Darmstadt, Stephanstrasse 7, 64295 Darmstadt, Germany
| | - C. Kienle
- Swiss Centre for Applied Ecotoxicology Eawag-EPFL, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - I. Werner
- Swiss Centre for Applied Ecotoxicology Eawag-EPFL, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - A.-C. Haigis
- Institute for Environmental Research, Department of Ecosystem Analysis, ABBt–Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| | - D. Knapen
- Zebrafishlab, Veterinary Physiology and Biochemistry, University of Antwerp, Wilrijk, Belgium
| | - L. Vergauwen
- Zebrafishlab, Veterinary Physiology and Biochemistry, University of Antwerp, Wilrijk, Belgium
| | - M. Spehr
- Institute for Biology II, Department of Chemosensation, RWTH Aachen University, Aachen, Germany
| | - W. Schulz
- Zweckverband Landeswasserversorgung, Langenau, Germany
| | - W. Busch
- Department of Bioanalytical Ecotoxicology, UFZ–Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - D. Leuthold
- Department of Bioanalytical Ecotoxicology, UFZ–Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - S. Scholz
- Department of Bioanalytical Ecotoxicology, UFZ–Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - C. M. vom Berg
- Department of Environmental Toxicology, Swiss Federal Institute of Aquatic Science and Technology, Eawag, Dübendorf, 8600 Switzerland
| | - N. Basu
- Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Canada
| | - C. A. Murphy
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, USA
| | - A. Lampert
- Institute of Physiology (Neurophysiology), Aachen, Germany
| | - J. Kuckelkorn
- Section Toxicology of Drinking Water and Swimming Pool Water, Federal Environment Agency (UBA), Heinrich-Heine-Str. 12, 08645 Bad Elster, Germany
| | - T. Grummt
- Section Toxicology of Drinking Water and Swimming Pool Water, Federal Environment Agency (UBA), Heinrich-Heine-Str. 12, 08645 Bad Elster, Germany
| | - H. Hollert
- Institute for Environmental Research, Department of Ecosystem Analysis, ABBt–Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| |
Collapse
|
5
|
Effect-directed analysis via hyphenated high-performance thin-layer chromatography for bioanalytical profiling of sunflower leaves. J Chromatogr A 2018; 1533:213-220. [DOI: 10.1016/j.chroma.2017.12.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/12/2017] [Accepted: 12/12/2017] [Indexed: 11/24/2022]
|
6
|
Schulz W, Weiss SC, Weber WH, Winzenbacher R. The reciprocal iso-inhibition volume concept: A procedure for the evaluation in effect-directed analysis with thin-layer chromatography - using the thin-layer chromatography-luminescent bacteria assay as an example. J Chromatogr A 2017; 1519:121-130. [DOI: 10.1016/j.chroma.2017.08.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 11/26/2022]
|
7
|
Multiple on-line HPLC coupled with biochemical detection methods to evaluate bioactive compounds in Danshen injection. Biomed Chromatogr 2016; 30:1854-1860. [DOI: 10.1002/bmc.3772] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 05/13/2016] [Accepted: 05/22/2016] [Indexed: 01/24/2023]
|
8
|
De-qiang L, Zhao J, Wu D, Shao-ping L. Discovery of active components in herbs using chromatographic separation coupled with online bioassay. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1021:81-90. [DOI: 10.1016/j.jchromb.2016.02.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 01/19/2016] [Accepted: 02/03/2016] [Indexed: 11/30/2022]
|
9
|
Weiss SC, Egetenmeyer N, Schulz W. Coupling of In Vitro Bioassays with Planar Chromatography in Effect-Directed Analysis. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2016; 157:187-224. [PMID: 27757476 DOI: 10.1007/10_2016_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Modern analytical test methods increasingly detect anthropogenic organic substances and their transformation products in water samples and in the environment. The presence of these compounds might pose a risk to the aquatic environment. To determine a possible (eco)toxicological risk, aquatic samples are tested using various bioassays, including sub-organismic assays such as the luminescent bacteria inhibition test, the acetylcholinesterase inhibition test, and the umu-test. The effect-directed analysis (EDA) combines physicochemical separation methods with biological (in vitro) tests. High-performance thin-layer chromatography (HPTLC) has proved to be particularly well suited for the separation of organic compounds and the subsequent analysis of effects by the application of the biotests directly on the surface of the HPTLC plate. The advantage of using HPTLC in comparison to high-performance liquid chromatography (HPLC) for EDA is that the solvent which is used as a mobile phase during chromatography is completely evaporated after the separation and therefore can no longer influence the applied bioassays.A prioritization during the complex identification process can be achieved when observed effects are associated with the separated zones in HPTLC. This increases the probability of identifying the substance responsible for an adverse effect from the multitude of organic trace substances in environmental samples. Furthermore, by comparing the pattern of biological effects of a separated sample, it is possible to track and assess changes in biological activity over time, over space, or in the course of a process, even without identifying the substance. HPTLC has already been coupled with various bioassays.Because HPTLC is a very flexible system, various detection techniques can be used and combined. In addition to the UV/Vis absorption and fluorescence measurements, TLC can also be coupled with a mass spectrometer (MS) for compound identification. In addition, detection of functional groups by means of derivatization reagents can support this identification. It is also possible to combine derivatization and HPLC-MS.Two case studies are used to illustrate the significance of HPTLC-EDA in investigating water quality: Study on a wastewater treatment plant Possible influence of an artificial turf surface on ground water.
Collapse
Affiliation(s)
- Stefan C Weiss
- Betriebs und Forschungslaboratorium, Zweckverband Landeswasserversorgung (LW), Am Spitzigen Berg 1, 89129, Langenau, Germany.
| | - Nicole Egetenmeyer
- Betriebs und Forschungslaboratorium, Zweckverband Landeswasserversorgung (LW), Am Spitzigen Berg 1, 89129, Langenau, Germany
| | - Wolfgang Schulz
- Betriebs und Forschungslaboratorium, Zweckverband Landeswasserversorgung (LW), Am Spitzigen Berg 1, 89129, Langenau, Germany
| |
Collapse
|
10
|
Peng WB, Tan JL, Huang DD, Ding XP. On-Line HPLC with Biochemical Detection for Screening Bioactive Compounds in Complex Matrixes. Chromatographia 2015. [DOI: 10.1007/s10337-015-2982-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
11
|
De Smet S, Miserez B, Rambla Alegre M, Talha Yapa M, de Villiers A, Sandra P, Lynen F. Optimization of a high-resolution radical scavenging assay coupled on-line to reversed-phase liquid chromatography for antioxidant detection in complex natural extracts. J Sep Sci 2015; 38:724-31. [DOI: 10.1002/jssc.201401222] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 12/15/2014] [Accepted: 12/16/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Seppe De Smet
- Separation Science Group; Department of Organic & Macromolecular Chemistry; Ghent University; Ghent Belgium
| | - Bram Miserez
- Separation Science Group; Department of Organic & Macromolecular Chemistry; Ghent University; Ghent Belgium
| | | | - Mehmet Talha Yapa
- Separation Science Group; Department of Organic & Macromolecular Chemistry; Ghent University; Ghent Belgium
| | - André de Villiers
- University of Stellenbosch; Department of Chemistry and Polymer Science; Matieland South Africa
| | - Pat Sandra
- Separation Science Group; Department of Organic & Macromolecular Chemistry; Ghent University; Ghent Belgium
- Research Institute for Chromatography; Kortrijk Belgium
| | - Frederic Lynen
- Separation Science Group; Department of Organic & Macromolecular Chemistry; Ghent University; Ghent Belgium
| |
Collapse
|
12
|
Morlock GE. Chromatography Combined with Bioassays and Other Hyphenations – The Direct Link to the Compound Indicating the Effect. ACS SYMPOSIUM SERIES 2014. [DOI: 10.1021/bk-2014-1185.ch005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Gertrud E. Morlock
- Justus Liebig University Giessen, Interdisciplinary Research Center (IFZ), Institute of Nutritional Science, Chair of Food Science, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| |
Collapse
|
13
|
Immunoassays and biosensors for the detection of cyanobacterial toxins in water. SENSORS 2013; 13:15085-112. [PMID: 24196435 PMCID: PMC3871135 DOI: 10.3390/s131115085] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/11/2013] [Accepted: 10/14/2013] [Indexed: 12/16/2022]
Abstract
Algal blooms are a frequent phenomenon in nearly all kinds of fresh water. Global warming and eutrophication by waste water, air pollution and fertilizers seem to lead to an increased frequency of occurrence. Many cyanobacteria produce hazardous and quite persistent toxins, which can contaminate the respective water bodies. This may limit the use of the raw water for many purposes. The purification of the contaminated water might be quite costly, which makes a continuous and large scale treatment economically unfeasible in many cases. Due to the obvious risks of algal toxins, an online or mobile detection method would be highly desirable. Several biosensor systems have been presented in the literature for this purpose. In this review, their mode of operation, performance and general suitability for the intended purpose will be described and critically discussed. Finally, an outlook on current developments and future prospects will be given.
Collapse
|
14
|
Buchinger S, Spira D, Bröder K, Schlüsener M, Ternes T, Reifferscheid G. Direct coupling of thin-layer chromatography with a bioassay for the detection of estrogenic compounds: applications for effect-directed analysis. Anal Chem 2013; 85:7248-56. [PMID: 23799293 DOI: 10.1021/ac4010925] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present study investigated the hypothesis that the coupling of high-performance thin-layer chromatography with the yeast estrogen screen (planar-YES, p-YES) can be used as a screening tool for effect-directed analysis. Therefore, the proposed method was challenged for the first time with several real samples from various origins such as sediment pore water, wastewater, and sunscreens. It was possible to detect and quantify estrogenic effects in all investigated sample types, even in the presence of demanding matrixes. Furthermore, the specific agonistic effect of the estrogen receptor activation could be detected in samples exhibiting cytotoxic effects and at cytotoxic levels of analyzed estrogenic compounds, which is not possible with the classic YES. The analysis of samples by the p-YES results in profiles of estrogenic activity. By means of this profiles samples can be compared qualitatively and quantitatively with respect to different compositions of bioactive compounds in mixtures. In conclusion, the p-YES approach seems to have a high potential to be used as a valuable screening tool for various applications in effect-directed analysis.
Collapse
|
15
|
Weller MG. A unifying review of bioassay-guided fractionation, effect-directed analysis and related techniques. SENSORS 2012; 12:9181-209. [PMID: 23012539 PMCID: PMC3444097 DOI: 10.3390/s120709181] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 06/26/2012] [Accepted: 07/02/2012] [Indexed: 12/24/2022]
Abstract
The success of modern methods in analytical chemistry sometimes obscures the problem that the ever increasing amount of analytical data does not necessarily give more insight of practical relevance. As alternative approaches, toxicity- and bioactivity-based assays can deliver valuable information about biological effects of complex materials in humans, other species or even ecosystems. However, the observed effects often cannot be clearly assigned to specific chemical compounds. In these cases, the establishment of an unambiguous cause-effect relationship is not possible. Effect-directed analysis tries to interconnect instrumental analytical techniques with a biological/biochemical entity, which identifies or isolates substances of biological relevance. Successful application has been demonstrated in many fields, either as proof-of-principle studies or even for complex samples. This review discusses the different approaches, advantages and limitations and finally shows some practical examples. The broad emergence of effect-directed analytical concepts might lead to a true paradigm shift in analytical chemistry, away from ever growing lists of chemical compounds. The connection of biological effects with the identification and quantification of molecular entities leads to relevant answers to many real life questions.
Collapse
Affiliation(s)
- Michael G Weller
- Division 1.5 Protein Analysis, BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany.
| |
Collapse
|
16
|
Development of on-line high performance liquid chromatography (HPLC)-biochemical detection methods as tools in the identification of bioactives. Int J Mol Sci 2012; 13:3101-3133. [PMID: 22489144 PMCID: PMC3317705 DOI: 10.3390/ijms13033101] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 02/08/2012] [Accepted: 03/01/2012] [Indexed: 11/23/2022] Open
Abstract
Biochemical detection (BCD) methods are commonly used to screen plant extracts for specific biological activities in batch assays. Traditionally, bioactives in the most active extracts were identified through time-consuming bio-assay guided fractionation until single active compounds could be isolated. Not only are isolation procedures often tedious, but they could also lead to artifact formation. On-line coupling of BCD assays to high performance liquid chromatography (HPLC) is gaining ground as a high resolution screening technique to overcome problems associated with pre-isolation by measuring the effects of compounds post-column directly after separation. To date, several on-line HPLC-BCD assays, applied to whole plant extracts and mixtures, have been published. In this review the focus will fall on enzyme-based, receptor-based and antioxidant assays.
Collapse
|
17
|
Brack W, Ulrich N, Bataineh M. Separation Techniques in Effect-Directed Analysis. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2011. [DOI: 10.1007/978-3-642-18384-3_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
18
|
Advances in mass spectrometry-based post-column bioaffinity profiling of mixtures. Anal Bioanal Chem 2010; 399:2655-68. [PMID: 21107824 PMCID: PMC3043236 DOI: 10.1007/s00216-010-4406-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Revised: 10/29/2010] [Accepted: 10/31/2010] [Indexed: 10/29/2022]
Abstract
In the screening of complex mixtures, for example combinatorial libraries, natural extracts, and metabolic incubations, different approaches are used for integrated bioaffinity screening. Four major strategies can be used for screening of bioactive mixtures for protein targets-pre-column and post-column off-line, at-line, and on-line strategies. The focus of this review is on recent developments in post-column on-line screening, and the role of mass spectrometry (MS) in these systems. On-line screening systems integrate separation sciences, mass spectrometry, and biochemical methodology, enabling screening for active compounds in complex mixtures. There are three main variants of on-line MS based bioassays: the mass spectrometer is used for ligand identification only; the mass spectrometer is used for both ligand identification and bioassay readout; or MS detection is conducted in parallel with at-line microfractionation with off-line bioaffinity analysis. On the basis of the different fields of application of on-line screening, the principles are explained and their usefulness in the different fields of drug research is critically evaluated. Furthermore, off-line screening is discussed briefly with the on-line and at-line approaches.
Collapse
|
19
|
Morlock G, Schwack W. Hyphenations in planar chromatography. J Chromatogr A 2010; 1217:6600-9. [DOI: 10.1016/j.chroma.2010.04.058] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Revised: 04/15/2010] [Accepted: 04/20/2010] [Indexed: 11/30/2022]
|
20
|
Akkad R, Schwack W. Multi-enzyme inhibition assay for the detection of insecticidal organophosphates and carbamates by high-performance thin-layer chromatography applied to determine enzyme inhibition factors and residues in juice and water samples. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:1337-45. [DOI: 10.1016/j.jchromb.2009.12.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Revised: 12/11/2009] [Accepted: 12/16/2009] [Indexed: 11/16/2022]
|
21
|
Coupling HPLC to on-line, post-column (bio)chemical assays for high-resolution screening of bioactive compounds from complex mixtures. Trends Analyt Chem 2009. [DOI: 10.1016/j.trac.2009.03.009] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Blasco C, Picó Y. Prospects for combining chemical and biological methods for integrated environmental assessment. Trends Analyt Chem 2009. [DOI: 10.1016/j.trac.2009.04.010] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
23
|
Schebb NH, Heus F, Saenger T, Karst U, Irth H, Kool J. Development of a Countergradient Parking System for Gradient Liquid Chromatography with Online Biochemical Detection of Serine Protease Inhibitors. Anal Chem 2008; 80:6764-72. [DOI: 10.1021/ac801035e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nils Helge Schebb
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische and Analytische Chemie, Corrensstrasse 30, 48149 Münster, Germany, and Vrije Universiteit Amsterdam, Faculty of Sciences, Department of Chemistry and Pharmaceutical Sciences, Section Analytical Chemistry and Applied Spectroscopy, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands
| | - Ferry Heus
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische and Analytische Chemie, Corrensstrasse 30, 48149 Münster, Germany, and Vrije Universiteit Amsterdam, Faculty of Sciences, Department of Chemistry and Pharmaceutical Sciences, Section Analytical Chemistry and Applied Spectroscopy, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands
| | - Thorsten Saenger
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische and Analytische Chemie, Corrensstrasse 30, 48149 Münster, Germany, and Vrije Universiteit Amsterdam, Faculty of Sciences, Department of Chemistry and Pharmaceutical Sciences, Section Analytical Chemistry and Applied Spectroscopy, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands
| | - Uwe Karst
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische and Analytische Chemie, Corrensstrasse 30, 48149 Münster, Germany, and Vrije Universiteit Amsterdam, Faculty of Sciences, Department of Chemistry and Pharmaceutical Sciences, Section Analytical Chemistry and Applied Spectroscopy, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands
| | - Hubertus Irth
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische and Analytische Chemie, Corrensstrasse 30, 48149 Münster, Germany, and Vrije Universiteit Amsterdam, Faculty of Sciences, Department of Chemistry and Pharmaceutical Sciences, Section Analytical Chemistry and Applied Spectroscopy, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands
| | - Jeroen Kool
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische and Analytische Chemie, Corrensstrasse 30, 48149 Münster, Germany, and Vrije Universiteit Amsterdam, Faculty of Sciences, Department of Chemistry and Pharmaceutical Sciences, Section Analytical Chemistry and Applied Spectroscopy, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands
| |
Collapse
|
24
|
Márquez N, Castaño P, Makkee M, Moulijn JA, Kreutzer MT. Dispersion and Holdup in Multiphase Packed Bed Microreactors. Chem Eng Technol 2008. [DOI: 10.1002/ceat.200800198] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
25
|
Liu H, Fu Z, Yang Z, Yan F, Ju H. Sampling-Resolution Strategy for One-Way Multiplexed Immunoassay with Sequential Chemiluminescent Detection. Anal Chem 2008; 80:5654-9. [DOI: 10.1021/ac800804c] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hong Liu
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Zhifeng Fu
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Zhanjun Yang
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Feng Yan
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Huangxian Ju
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| |
Collapse
|
26
|
Whole-cell luminescence-based flow-through biodetector for toxicity testing. Anal Bioanal Chem 2007; 390:1181-7. [DOI: 10.1007/s00216-007-1770-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Revised: 11/08/2007] [Accepted: 11/20/2007] [Indexed: 11/25/2022]
|