1
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Feng X, Liu BF, Li J, Liu X. Advances in coupling microfluidic chips to mass spectrometry. MASS SPECTROMETRY REVIEWS 2015; 34:535-57. [PMID: 24399782 DOI: 10.1002/mas.21417] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 11/07/2013] [Accepted: 11/07/2013] [Indexed: 05/26/2023]
Abstract
Microfluidic technology has shown advantages of low sample consumption, reduced analysis time, high throughput, and potential for integration and automation. Coupling microfluidic chips to mass spectrometry (Chip-MS) can greatly improve the overall analytical performance of MS-based approaches and expand their potential applications. In this article, we review the advances of Chip-MS in the past decade, covering innovations in microchip fabrication, microchips coupled to electrospray ionization (ESI)-MS and matrix-assisted laser desorption/ionization (MALDI)-MS. Development of integrated microfluidic systems for automated MS analysis will be further documented, as well as recent applications of Chip-MS in proteomics, metabolomics, cell analysis, and clinical diagnosis.
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MESH Headings
- Animals
- Chromatography, Liquid/instrumentation
- Chromatography, Liquid/methods
- Electrophoresis, Microchip/instrumentation
- Electrophoresis, Microchip/methods
- Equipment Design
- Humans
- Lab-On-A-Chip Devices
- Lipids/analysis
- Metabolomics/instrumentation
- Metabolomics/methods
- Polysaccharides/analysis
- Proteins/analysis
- Proteomics/instrumentation
- Proteomics/methods
- Spectrometry, Mass, Electrospray Ionization/instrumentation
- Spectrometry, Mass, Electrospray Ionization/methods
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/instrumentation
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods
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Affiliation(s)
- Xiaojun Feng
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics and Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Bi-Feng Liu
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics and Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jianjun Li
- Human Health Therapeutics, National Research Council Canada, Ottawa, Ontario, Canada K1A 0R6
| | - Xin Liu
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics and Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
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2
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Lafrenière NM, Mudrik JM, Ng AHC, Seale B, Spooner N, Wheeler AR. Attractive Design: An Elution Solvent Optimization Platform for Magnetic-Bead-based Fractionation Using Digital Microfluidics and Design of Experiments. Anal Chem 2015; 87:3902-10. [DOI: 10.1021/ac504697r] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nelson M. Lafrenière
- Department
of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
| | - Jared M. Mudrik
- Department
of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
| | - Alphonsus H. C. Ng
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario M5S 3G9, Canada
| | - Brendon Seale
- Department
of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
| | - Neil Spooner
- Platform Technologies
and Science Drug Metabolism and Pharmacokinetics, GlaxoSmithKline Research and Development, Ware, Hertfordshire SG12 0DP, United Kingdom
| | - Aaron R. Wheeler
- Department
of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario M5S 3G9, Canada
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3
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Eriksson AIK, Edwards K, Agmo Hernández V. Cooperative adsorption behavior of phosphopeptides on TiO2 leads to biased enrichment, detection and quantification. Analyst 2015; 140:303-12. [DOI: 10.1039/c4an01580k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel data show that anomalous adsorption behavior and common washing procedures can lead to biased results in TiO2-based phosphoproteomics.
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Affiliation(s)
| | - K. Edwards
- Department of Chemistry – BMC
- Uppsala University
- Uppsala
- Sweden
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4
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Ahmad-Tajudin A, Adler B, Ekström S, Marko-Varga G, Malm J, Lilja H, Laurell T. MALDI-target integrated platform for affinity-captured protein digestion. Anal Chim Acta 2013; 807:1-8. [PMID: 24356215 DOI: 10.1016/j.aca.2013.08.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 08/30/2013] [Indexed: 12/13/2022]
Abstract
To address immunocapture of proteins in large cohorts of clinical samples high throughput sample processing is required. Here a method using the proteomic sample platform, ISET (integrated selective enrichment target) that integrates highly specific immunoaffinity capture of protein biomarker, digestion and sample cleanup with a direct interface to mass spectrometry is presented. The robustness of the on-ISET protein digestion protocol was validated by MALDI MS analysis of model proteins, ranging from 40 fmol to 1 pmol per nanovial. On-ISET digestion and MALDI MS/MS analysis of immunoaffinity captured disease-associated biomarker PSA (prostate specific antigen) from human seminal plasma are presented.
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Affiliation(s)
- Asilah Ahmad-Tajudin
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Box 118, 22100 Lund, Sweden; CREATE Health, Lund University, Medicon Village, Bldn 406, 22381 Lund, Sweden; Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Belinda Adler
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Box 118, 22100 Lund, Sweden; CREATE Health, Lund University, Medicon Village, Bldn 406, 22381 Lund, Sweden.
| | - Simon Ekström
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Box 118, 22100 Lund, Sweden; CREATE Health, Lund University, Medicon Village, Bldn 406, 22381 Lund, Sweden
| | - György Marko-Varga
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Box 118, 22100 Lund, Sweden
| | - Johan Malm
- Department of Laboratory Medicine, Division of Clinical Chemistry, Lund University, Skåne University Hospital, 20502 Skåne, Sweden
| | - Hans Lilja
- Department of Laboratory Medicine, Division of Clinical Chemistry, Lund University, Skåne University Hospital, 20502 Skåne, Sweden; Department of Laboratory Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA; Department of Surgery (Urology Service), Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA; Department of Medicine (GU Oncology Service), Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA; Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom; Institute of Biomedical Technology, University of Tampere, Tampere 33520, Finland
| | - Thomas Laurell
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Box 118, 22100 Lund, Sweden; CREATE Health, Lund University, Medicon Village, Bldn 406, 22381 Lund, Sweden; Department of Biomedical Engineering, Dongguk University, Seoul, Republic of Korea
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5
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Hammarström B, Yan H, Nilsson J, Ekström S. Efficient sample preparation in immuno-matrix-assisted laser desorption/ionization mass spectrometry using acoustic trapping. BIOMICROFLUIDICS 2013; 7:24107. [PMID: 24404012 PMCID: PMC3625219 DOI: 10.1063/1.4798473] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 03/14/2013] [Indexed: 05/15/2023]
Abstract
Acoustic trapping of minute bead amounts against fluid flow allows for easy automation of multiple assay steps, using a convenient aspirate/dispense format. Here, a method based on acoustic trapping that allows sample preparation for immuno-matrix-assisted laser desorption/ionization mass spectrometry using only half a million 2.8 μm antibody covered beads is presented. The acoustic trapping is done in 200 × 2000 μm(2) glass capillaries and provides highly efficient binding and washing conditions, as shown by complete removal of detergents and sample processing times of 5-10 min. The versatility of the method is demonstrated using an antibody against Angiotensin I (Ang I), a peptide hormone involved in hypotension. Using this model system, the acoustic trapping was efficient in enriching Angiotensin at 400 pM spiked in plasma samples.
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Affiliation(s)
- Björn Hammarström
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Lund, Sweden
| | - Hong Yan
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Lund, Sweden
| | - Johan Nilsson
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Lund, Sweden
| | - Simon Ekström
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Lund, Sweden ; Lund University, CREATE Health, Lund, Sweden
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6
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Adler B, Boström T, Ekström S, Hober S, Laurell T. Miniaturized and Automated High-Throughput Verification of Proteins in the ISET Platform with MALDI MS. Anal Chem 2012; 84:8663-9. [DOI: 10.1021/ac3017983] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Belinda Adler
- Department of Measurement Technology
and Industrial Electrical Engineering, Division of Nanobiotechnology, Lund University, Box 118, SE-211 00 Lund, Sweden
| | - Tove Boström
- Division of Proteomics, School
of Biotechnology, AlbaNova University Center, KTH, SE-106 91 Stockholm, Sweden
| | - Simon Ekström
- Department of Measurement Technology
and Industrial Electrical Engineering, Division of Nanobiotechnology, Lund University, Box 118, SE-211 00 Lund, Sweden
| | - Sophia Hober
- Division of Proteomics, School
of Biotechnology, AlbaNova University Center, KTH, SE-106 91 Stockholm, Sweden
| | - Thomas Laurell
- Department of Measurement Technology
and Industrial Electrical Engineering, Division of Nanobiotechnology, Lund University, Box 118, SE-211 00 Lund, Sweden
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7
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Adler B, Laurell T, Ekström S. Optimizing nanovial outlet designs for improved solid-phase extraction in the integrated selective enrichment target-ISET. Electrophoresis 2012; 33:3143-50. [DOI: 10.1002/elps.201200134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 04/19/2012] [Accepted: 04/23/2012] [Indexed: 01/12/2023]
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8
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Schwarzinger C, Gabriel S, Beißmann S, Buchberger W. Quantitative analysis of polymer additives with MALDI-TOF MS using an internal standard approach. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:1120-1125. [PMID: 22451334 DOI: 10.1007/s13361-012-0367-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 02/15/2012] [Accepted: 02/21/2012] [Indexed: 05/31/2023]
Abstract
MALDI-TOF MS is used for the qualitative analysis of seven different polymer additives directly from the polymer without tedious sample pretreatment. Additionally, by using a solid sample preparation technique, which avoids the concentration gradient problems known to occur with dried droplets and by adding tetraphenylporphyrine as an internal standard to the matrix, it is possible to perform quantitative analysis of additives directly from the polymer sample. Calibration curves for Tinuvin 770, Tinuvin 622, Irganox 1024, Irganox 1010, Irgafos 168, and Chimassorb 944 are presented, showing coefficients of determination between 0.911 and 0.990.
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Affiliation(s)
- Clemens Schwarzinger
- Institute for Chemical Technology of Organic Materials, Johannes Kepler University, Linz, Austria.
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9
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Augustsson P, Malm J, Ekström S. Acoustophoretic microfluidic chip for sequential elution of surface bound molecules from beads or cells. BIOMICROFLUIDICS 2012; 6:34115. [PMID: 24003343 PMCID: PMC3448593 DOI: 10.1063/1.4749289] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 08/17/2012] [Indexed: 05/12/2023]
Abstract
An acoustophoresis-based microfluidic flow-chip is presented as a novel platform to facilitate analysis of proteins and peptides loosely bound to the surface of beads or cells. The chip allows for direct removal of the background surrounding the beads or cells, followed by sequential treatment and collection of a sequence of up to five different buffer conditions. During this treatment, the beads/cells are retained in a single flow by acoustic radiation force. Eluted peptides are collected from the outlets and subsequently purified by miniaturized solid-phase extraction and analyzed with matrix assisted laser desorption mass spectrometry. Fundamental parameters such as the system fluidics and dispersion are presented. The device was successfully applied for wash and sequential elution of peptides bound to the surface of microbeads and human spermatozoa, respectively.
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Affiliation(s)
- Per Augustsson
- Department of Measurement Technology and Industrial Electrical Engineering, Lund University, Lund, Sweden
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10
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Yan H, Ahmad-Tajudin A, Bengtsson M, Xiao S, Laurell T, Ekström S. Noncovalent Antibody Immobilization on Porous Silicon Combined with Miniaturized Solid-Phase Extraction (SPE) for Array Based ImmunoMALDI Assays. Anal Chem 2011; 83:4942-8. [DOI: 10.1021/ac200679t] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Hong Yan
- Department of Measurement Technology and Industrial Electrical Engineering, Division of Nanotechnology, Lund University, Lund, Sweden
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, PR China
| | - Asilah Ahmad-Tajudin
- Department of Measurement Technology and Industrial Electrical Engineering, Division of Nanotechnology, Lund University, Lund, Sweden
- CREATE Health, Lund University, Lund, Sweden
| | - Martin Bengtsson
- Department of Measurement Technology and Industrial Electrical Engineering, Division of Nanotechnology, Lund University, Lund, Sweden
| | - Shoujun Xiao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, PR China
| | - Thomas Laurell
- Department of Measurement Technology and Industrial Electrical Engineering, Division of Nanotechnology, Lund University, Lund, Sweden
- CREATE Health, Lund University, Lund, Sweden
- Department of Biomedical Engineering, Dongguk University, Seoul, Korea
| | - Simon Ekström
- Department of Measurement Technology and Industrial Electrical Engineering, Division of Nanotechnology, Lund University, Lund, Sweden
- CREATE Health, Lund University, Lund, Sweden
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11
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Urban PL, Amantonico A, Zenobi R. Lab-on-a-plate: extending the functionality of MALDI-MS and LDI-MS targets. MASS SPECTROMETRY REVIEWS 2011; 30:435-478. [PMID: 21254192 DOI: 10.1002/mas.20288] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We review the literature that describes how (matrix-assisted) laser desorption/ionization (MA)LDI target plates can be used not only as sample supports, but beyond that: as functional parts of analytical protocols that incorporate detection by MALDI-MS or matrix-free LDI-MS. Numerous steps of analytical procedures can be performed directly on the (MA)LDI target plates prior to the ionization of analytes in the ion source of a mass spectrometer. These include homogenization, preconcentration, amplification, purification, extraction, digestion, derivatization, synthesis, separation, detection with complementary techniques, data storage, or other steps. Therefore, we consider it helpful to define the "lab-on-a-plate" as a format for carrying out extensive sample treatment as well as bioassays directly on (MA)LDI target plates. This review introduces the lab-on-plate approach and illustrates it with the aid of relevant examples from the scientific and patent literature.
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Affiliation(s)
- Pawel L Urban
- Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
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12
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Yang H, Mudrik JM, Jebrail MJ, Wheeler AR. A Digital Microfluidic Method for in Situ Formation of Porous Polymer Monoliths with Application to Solid-Phase Extraction. Anal Chem 2011; 83:3824-30. [DOI: 10.1021/ac2002388] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hao Yang
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Jared M. Mudrik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mais J. Jebrail
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Aaron R. Wheeler
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, University of Toronto, Toronto, Ontario M5S 3G9, Canada
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13
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Eriksson A, Bergquist J, Edwards K, Hagfeldt A, Malmström D, Hernández VA. Mesoporous TiO2-based experimental layout for on-target enrichment and separation of multi- and monophosphorylated peptides prior to analysis with matrix-assisted laser desorption-ionization mass spectrometry. Anal Chem 2011; 83:761-6. [PMID: 21210638 DOI: 10.1021/ac1027879] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A simple method for on-target enrichment and subsequent separation and analysis of phosphorylated peptides is presented. The tryptic digest of a phosphorylated protein, in this case β-casein, is loaded onto a spot on a thin stripe made of mesoporous TiO(2) sintered onto a conductive glass surface. After washing with a salicylic buffer in order to remove the nonphosphorylated peptides, the stripe is placed in an elution chamber containing a phosphate solution. In a way analogous to thin layer chromatography (TLC), the phosphate solution acts as an eluent, clearly separating multi- and monophosphorylated peptides. By performing matrix-assisted laser desorption-ionization mass spectrometry (MALDI-MS) along the stripe, the detection of all phosphorylated peptides present in the digest is facilitated, as they are isolated from each other. The method was also tested on commercial drinking milk, achieving successful separation between multi- and monophosphorylated peptides, as well as a detection limit in the femtomole range. As the enrichment, separation, and analysis take place in the same substrate, sample handling and risk of contamination and sample loss is minimized. The results obtained suggest that the method, once optimized, may successfully provide a complete phosphoproteome.
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Affiliation(s)
- Anna Eriksson
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden
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14
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Eriksson A, Bergquist J, Edwards K, Hagfeldt A, Malmström D, Agmo Hernández V. Optimized Protocol for On-Target Phosphopeptide Enrichment Prior to Matrix-Assisted Laser Desorption−Ionization Mass Spectrometry Using Mesoporous Titanium Dioxide. Anal Chem 2010; 82:4577-83. [DOI: 10.1021/ac100589j] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Anna Eriksson
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden
| | - Jonas Bergquist
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden
| | - Katarina Edwards
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden
| | - Anders Hagfeldt
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden
| | - David Malmström
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden
| | - Víctor Agmo Hernández
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden
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15
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Dunn JD, Reid GE, Bruening ML. Techniques for phosphopeptide enrichment prior to analysis by mass spectrometry. MASS SPECTROMETRY REVIEWS 2010; 29:29-54. [PMID: 19263479 DOI: 10.1002/mas.20219] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Mass spectrometry is the tool of choice to investigate protein phosphorylation, which plays a vital role in cell regulation and diseases such as cancer. However, low abundances of phosphopeptides and low degrees of phosphorylation typically necessitate isolation and concentration of phosphopeptides prior to MS analysis. This review discusses the enrichment of phosphopeptides with immobilized metal affinity chromatography, reversible covalent binding, and metal oxide affinity chromatography. Capture of phosphopeptides on TiO(2) seems especially promising in terms of selectivity and recovery, but the success of all methods depends on careful selection of binding, washing, and elution solutions. Enrichment techniques are complementary, such that a combination of methods greatly enhances the number of phosphopeptides isolated from complex samples. Development of a standard series of phosphopeptides in a highly complex mixture of digested proteins would greatly aid the comparison of different enrichment methods. Phosphopeptide binding to magnetic beads and on-plate isolation prior to MALDI-MS are emerging as convenient methods for purification of small (microL) samples. On-plate enrichment can yield >70% recoveries of phosphopeptides in mixtures of a few digested proteins and can avoid sample-handling steps, but this technique is likely limited to relatively simple samples such as immunoprecipitates. With recent advances in enrichment techniques in hand, MS analysis should provide important insights into phosphorylation pathways.
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Affiliation(s)
- Jamie D Dunn
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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16
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Lee J, Soper SA, Murray KK. Microfluidics with MALDI analysis for proteomics--a review. Anal Chim Acta 2009; 649:180-90. [PMID: 19699392 DOI: 10.1016/j.aca.2009.07.037] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Revised: 07/13/2009] [Accepted: 07/15/2009] [Indexed: 01/01/2023]
Abstract
Various microfluidic devices have been developed for proteomic analyses and many of these have been designed specifically for mass spectrometry detection. In this review, we present an overview of chip fabrication, microfluidic components, and the interfacing of these devices to matrix-assisted laser desorption ionization (MALDI) mass spectrometry. These devices can be directly coupled to the mass spectrometer for on-line analysis in real-time, or samples can be analyzed on-chip or deposited onto targets for off-line readout. Several approaches for combining microfluidic devices with analytical functions such as sample cleanup, digestion, and separations with MALDI mass spectrometry are discussed.
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Affiliation(s)
- Jeonghoon Lee
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
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17
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Augustsson P, Persson J, Ekström S, Ohlin M, Laurell T. Decomplexing biofluids using microchip based acoustophoresis. LAB ON A CHIP 2009; 9:810-818. [PMID: 19255663 DOI: 10.1039/b811027a] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Highly efficient washing and extraction of microbeads to decomplex analytes ranging from small peptides to large viruses was realised in a microscaled continuous flow format. The bead washing principle reported herein is based on acoustophoresis, i.e. the primary acoustic radiation force in an ultrasonic standing wave and laminar flow properties are utilised to translate bioanalytes trapped on functionalised microbeads from one carrier fluid to another. The carry-over of non-specific material ranges from 1 to 50 ppm relative to input levels depending on application, making acoustophoresis suitable for extraction of rare species from complex environments. Selective extraction of a phosphopeptide relative to its unphosphorylated counterpart is demonstrated using metal oxide affinity capture (MOAC) beads and MALDI-TOF MS readout. Acoustophoresis of microbeads activated with specific binders could be used to capture phage viral particles. The efficiency of the acoustophoretic washing principle was demonstrated by an unspecific phage cross contamination level of only 10(-6) of that in the input bead/phage mixture. The continuous flow format makes acoustophoretic washing flexible regarding sample volume and also allows for easy integration into a sequence of particle handling and analytical unit operations.
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Affiliation(s)
- Per Augustsson
- Department of Electrical Measurements, Division of Nanobiotechnology, Lund University, P.O. Box 118, S-221 00, Lund, Sweden.
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18
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Hattan SJ, Vestal ML. Novel Three-Dimensional MALDI Plate for Interfacing High-Capacity LC Separations with MALDI-TOF. Anal Chem 2008; 80:9115-23. [DOI: 10.1021/ac8017108] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stephen J. Hattan
- Virgin Instruments Corporation, 60 Union Avenue (Suite 1-R), Sudbury, Massachusetts 01776
| | - Marvin L. Vestal
- Virgin Instruments Corporation, 60 Union Avenue (Suite 1-R), Sudbury, Massachusetts 01776
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19
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Winkle RF, Nagy JM, Cass AEG, Sharma S. Towards microfluidic technology-based MALDI-MS platforms for drug discovery: a review. Expert Opin Drug Discov 2008; 3:1281-92. [DOI: 10.1517/17460441.3.11.1281] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Dunn JD, Igrisan EA, Palumbo AM, Reid GE, Bruening ML. Phosphopeptide Enrichment Using MALDI Plates Modified with High-Capacity Polymer Brushes. Anal Chem 2008; 80:5727-35. [DOI: 10.1021/ac702472j] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jamie D. Dunn
- Department of Chemistry and Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824
| | - Elizabeth A. Igrisan
- Department of Chemistry and Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824
| | - Amanda M. Palumbo
- Department of Chemistry and Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824
| | - Gavin E. Reid
- Department of Chemistry and Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824
| | - Merlin L. Bruening
- Department of Chemistry and Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824
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