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Abstract
Miniaturization is an important trend in modern analytical instrument development, including miniaturized gas chromatography and liquid chromatography, as well as micro bore columns and capillary-to-microfluidics-based platforms. Apart from the miniaturization of the separation column, which is the core part of a chromatographic system, other parts of the system, including the sampler, pumping system, gradient generation, and detection systems, have been miniaturized. Miniaturized liquid chromatography significantly reduces solvent and sample consumption while providing comparable or even better separation efficiency. When liquid chromatography is coupled with mass spectroscopy, a low flow rate can increase the ionization efficiency, leading to enhanced sensitivity of the mass spectrometer. In contrast, normal-scale liquid chromatography suffers from its relatively high volumetric flow rate, which challenges the scanning frequency of the mass spectrometer. On the other hand because of the small sample size, other detection strategies such as spectrometric methods cannot provide sufficient sensitivity and limits of detection. In this sense, mass spectrometry has become the detection method of choice for micro-scale liquid-phase chromatography. Miniaturized liquid chromatography can diminish sample dilution efficiently when extremely small amounts of samples are used. The main driving force for this miniaturization trend, especially in liquid-phase separations, is the desperate need for microscale analyses of biological and clinical samples, given these samples are precious and the sample size is usually very small. At present, microscale liquid-phase chromatography is the only method of choice for such small, precious, and highly informative samples. The miniaturization of liquid chromatography systems, especially chromatographic columns, would be advantageous to the modularization and integration of liquid chromatography instrumental systems. Chip liquid chromatography is an integration of chromatography columns, liquid control systems, and detection methods on a single microfluidic chip. Chip liquid chromatography is an excellent format for the miniaturization of liquid chromatography systems, and it has already attracted significant attention from academia and industry. However, this attempt is challenging, and great effort is required on fundamental techniques, such as the substrate material of the microfluidic chip, structure of the micro-chromatography column, fluid control method, and detection methods, in order to make the chips suitable for liquid chromatography. Currently, the major problem in chip liquid chromatography is that the properties of the chip substrate materials cannot meet the requirements for further miniaturization and integration of chip liquid chromatography. The strength of the existing chip substrate materials is generally below 60 MPa, and the material properties limit further advances in the miniaturization and integration of chromatographic chips. Therefore, new chip substrate materials and the standard of chip channel design such as channel size and channel structure should be the key for further development of chip liquid chromatography. Mainstream instrumentation companies as well as new start-up innovation companies are now undertaking efforts toward the development of microchip liquid chromatographic products. Agilent, the first instrumentation company that introduced commercial microchip liquid chromatographic columns to the market, has led this field. Apart from microchip-based columns, Agilent introduced trap columns for different kinds of biological molecules as well as gradient generation systems for microchip-based liquid phase chromatography. Recently, another start-up company introduced microchip columns based on the in situ microfabrication of the column bed rather than packing the column with a particulate material. Such developments in microfabrication may further propel the advancement of micro-scale liquid-phase chromatography to an unprecedented level, which is beyond the conventional components and materials employed in normal-scale liquid chromatography. This review introduces the recent research progress in microchip liquid chromatography technologies, and briefly discusses the current state of commercialization of microchips for liquid chromatography by major instrumentation companies.
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Affiliation(s)
- Hanrong WEN
- 厦门大学化学化工学院, 福建 厦门 361005
- College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jue ZHU
- 厦门大学化学化工学院, 福建 厦门 361005
- College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bo ZHANG
- 厦门大学化学化工学院, 福建 厦门 361005
- College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
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Miniaturization of liquid chromatography coupled to mass spectrometry. 3. Achievements on chip-based LC–MS devices. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116003] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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3
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Li X, Chang H. Chip-based ion chromatography (chip-IC) with a sensitive five-electrode conductivity detector for the simultaneous detection of multiple ions in drinking water. MICROSYSTEMS & NANOENGINEERING 2020; 6:66. [PMID: 34567677 PMCID: PMC8433475 DOI: 10.1038/s41378-020-0175-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/25/2020] [Accepted: 04/26/2020] [Indexed: 06/13/2023]
Abstract
The emerging need for accurate, efficient, inexpensive, and multiparameter monitoring of water quality has led to interest in the miniaturization of benchtop chromatography systems. This paper reports a chip-based ion chromatography (chip-IC) system in which the microvalves, sample channel, packed column, and conductivity detector are all integrated on a polymethylmethacrylate (PMMA) chip. A laser-based bonding technique was developed to guarantee simultaneous robust sealing between the homogeneous and heterogeneous interfaces. A five-electrode-based conductivity detector was presented to improve the sensitivity for nonsuppressed anion detection. Common anions (F-, Cl-, NO3 -, and SO4 2-) were separated in less than 8 min, and a detection limit (LOD) of 0.6 mg L-1 was achieved for SO4 2-. Tap water was also analyzed using the proposed chip-IC system, and the relative deviations of the quantified concentration were less than 10% when compared with that a commercial IC system.
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Affiliation(s)
- Xiaoping Li
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, School of Mechanical Engineering, Northwestern Polytechnical University, 710072 Xi’an, P. R. China
| | - Honglong Chang
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, School of Mechanical Engineering, Northwestern Polytechnical University, 710072 Xi’an, P. R. China
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Lazar IM, Deng J, Stremler MA, Ahuja S. Microfluidic reactors for advancing the MS analysis of fast biological responses. MICROSYSTEMS & NANOENGINEERING 2019; 5:7. [PMID: 31057934 PMCID: PMC6369226 DOI: 10.1038/s41378-019-0048-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/08/2018] [Accepted: 12/29/2018] [Indexed: 06/09/2023]
Abstract
The response of cells to physical or chemical stimuli is complex, unfolding on time-scales from seconds to days, with or without de novo protein synthesis, and involving signaling processes that are transient or sustained. By combining the technology of microfluidics that supports fast and precise execution of a variety of cell handling operations, with that of mass spectrometry detection that facilitates an accurate and complex characterization of the protein complement of cells, in this work, we developed a platform that supports (near) real-time sampling and proteome-level capturing of cellular responses to a perturbation such as treatment with mitogens. The geometric design of the chip supports three critical features: (a) capture of a sufficient number of cells to meet the detection limit requirements of mass spectrometry instrumentation, (b) fluid delivery for uniform stimulation of the resident cells, and (c) fast cell recovery, lysis and processing for accurate sampling of time-sensitive cellular responses to a stimulus. COMSOL simulations and microscopy were used to predict and evaluate the flow behavior inside the microfluidic device. Proteomic analysis of the cellular extracts generated by the chip experiments revealed that the identified proteins were representative of all cellular locations, exosomes, and major biological processes related to proliferation and signaling, demonstrating that the device holds promising potential for integration into complex lab-on-chip work-flows that address systems biology questions. The applicability of the chips to study time-sensitive cellular responses is discussed in terms of technological challenges and biological relevance.
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Affiliation(s)
- Iulia M. Lazar
- Department of Biological Sciences, Virginia Tech, 1981 Kraft Drive, Blacksburg, VA 24061 USA
- Virginia Tech Carilion School of Medicine, Virginia Tech, 2 Riverside Circle, Roanoke, VA 24016 USA
| | - Jingren Deng
- Department of Biological Sciences, Virginia Tech, 1981 Kraft Drive, Blacksburg, VA 24061 USA
| | - Mark A. Stremler
- Department of Mechanical Engineering, Virginia Tech, 780 Drillfield Drive, Room 333P, Blacksburg, VA 24061 USA
| | - Shreya Ahuja
- Department of Biological Sciences, Virginia Tech, 1981 Kraft Drive, Blacksburg, VA 24061 USA
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Lazar IM. Achieving Stable Electrospray Ionization Mass Spectrometry Detection from Microfluidic Chips. Methods Mol Biol 2019; 1906:225-237. [PMID: 30488396 DOI: 10.1007/978-1-4939-8964-5_15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The past two decades have witnessed remarkable advances in the development of microfluidic devices as bioanalytical platforms for the analysis of biological molecules. The implementation of mass spectrometry (MS) detection systems on these devices has become inevitable, and various chip-MS ionization interfaces have been developed. As electrospray ionization (ESI) is particularly relevant for the analysis of large biological molecules such as proteins or peptides, efforts have focused on advancing interfaces that meet the demands of nano-separation techniques that are typically used prior to MS detection. Achieving stable ESI conditions that enable sensitive MS detection is, however, not trivial, especially when the spray is generated from a microfabricated platform. This chapter is aimed at providing a step-by-step protocol for producing stable and efficient electrospray sample ionization from microfluidic chips that are used for capillary electrophoresis (CE) separations.
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Affiliation(s)
- Iulia M Lazar
- Biological Sciences, Virginia Tech, Blacksburg, VA, USA.
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Kecskemeti A, Gaspar A. Particle-based liquid chromatographic separations in microfluidic devices - A review. Anal Chim Acta 2018; 1021:1-19. [DOI: 10.1016/j.aca.2018.01.064] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/18/2018] [Accepted: 01/21/2018] [Indexed: 01/06/2023]
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Haghighi F, Talebpour Z, Nezhad AS. Towards fully integrated liquid chromatography on a chip: Evolution and evaluation. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.05.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Tsao CW, Lei IC, Chen PY, Yang YL. A piezo-ring-on-chip microfluidic device for simple and low-cost mass spectrometry interfacing. Analyst 2018; 143:981-988. [DOI: 10.1039/c7an01548h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Mass spectrometry (MS) interfacing technology provides the means for incorporating microfluidic processing with post MS analysis.
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Affiliation(s)
- Chia-Wen Tsao
- Department of Mechanical Engineering
- National Central University
- Taoyuan
- Taiwan
| | - I-Chao Lei
- Department of Mechanical Engineering
- National Central University
- Taoyuan
- Taiwan
| | - Pi-Yu Chen
- Agricultural Biotechnology Research Center
- Academia Sinica
- Taipei
- Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center
- Academia Sinica
- Taipei
- Taiwan
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Lynch KB, Chen A, Liu S. Miniaturized high-performance liquid chromatography instrumentation. Talanta 2017; 177:94-103. [PMID: 29108588 DOI: 10.1016/j.talanta.2017.09.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/04/2017] [Accepted: 09/06/2017] [Indexed: 12/26/2022]
Abstract
Miniaturized high performance liquid chromatography (HPLC) has attracted increasing attention for its potential in high-throughput analyses and point-of-care applications. In this review we highlight the recent advancements in HPLC system miniaturization. We focus on the major components that constitute these instruments along with their respective advantages and drawbacks as well as present a few representative miniaturized HPLC systems. We discuss briefly some of the applications and also anticipate the future development trends of these instrumental platforms.
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Affiliation(s)
- Kyle B Lynch
- Department of Chemistry and Biochemistry, University of Oklahoma, USA.
| | - Apeng Chen
- Department of Chemistry and Biochemistry, University of Oklahoma, USA
| | - Shaorong Liu
- Department of Chemistry and Biochemistry, University of Oklahoma, USA
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Pedde RD, Li H, Borchers CH, Akbari M. Microfluidic-Mass Spectrometry Interfaces for Translational Proteomics. Trends Biotechnol 2017; 35:954-970. [PMID: 28755975 DOI: 10.1016/j.tibtech.2017.06.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/05/2017] [Accepted: 06/09/2017] [Indexed: 12/29/2022]
Abstract
Interfacing mass spectrometry (MS) with microfluidic chips (μchip-MS) holds considerable potential to transform a clinician's toolbox, providing translatable methods for the early detection, diagnosis, monitoring, and treatment of noncommunicable diseases by streamlining and integrating laborious sample preparation workflows on high-throughput, user-friendly platforms. Overcoming the limitations of competitive immunoassays - currently the gold standard in clinical proteomics - μchip-MS can provide unprecedented access to complex proteomic assays having high sensitivity and specificity, but without the labor, costs, and complexities associated with conventional MS sample processing. This review surveys recent μchip-MS systems for clinical applications and examines their emerging role in streamlining the development and translation of MS-based proteomic assays by alleviating many of the challenges that currently inhibit widespread clinical adoption.
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Affiliation(s)
- R Daniel Pedde
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada; University of Victoria-Genome British Columbia Proteomics Centre, University of Victoria, 3101-4464 Markham St., Victoria, BC, V8Z 7X8, Canada
| | - Huiyan Li
- University of Victoria-Genome British Columbia Proteomics Centre, University of Victoria, 3101-4464 Markham St., Victoria, BC, V8Z 7X8, Canada
| | - Christoph H Borchers
- University of Victoria-Genome British Columbia Proteomics Centre, University of Victoria, 3101-4464 Markham St., Victoria, BC, V8Z 7X8, Canada; Department of Biochemistry and Microbiology, University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada; Gerald Bronfman Department of Oncology, McGill University, 5100 de Maisonneuve Blvd. West, Suite 720, Montreal, QC, H4A 3T2, Canada; Proteomics Centre, Jewish General Hospital, McGill University, 3755 Cote-Ste-Catherine Road, Montreal, QC, H3T 1E2, Canada.
| | - Mohsen Akbari
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada; Centre for Biomedical Research (CBR), University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada; Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada.
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Karouia F, Peyvan K, Pohorille A. Toward biotechnology in space: High-throughput instruments for in situ biological research beyond Earth. Biotechnol Adv 2017; 35:905-932. [PMID: 28433608 DOI: 10.1016/j.biotechadv.2017.04.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 03/27/2017] [Accepted: 04/12/2017] [Indexed: 12/18/2022]
Abstract
Space biotechnology is a nascent field aimed at applying tools of modern biology to advance our goals in space exploration. These advances rely on our ability to exploit in situ high throughput techniques for amplification and sequencing DNA, and measuring levels of RNA transcripts, proteins and metabolites in a cell. These techniques, collectively known as "omics" techniques have already revolutionized terrestrial biology. A number of on-going efforts are aimed at developing instruments to carry out "omics" research in space, in particular on board the International Space Station and small satellites. For space applications these instruments require substantial and creative reengineering that includes automation, miniaturization and ensuring that the device is resistant to conditions in space and works independently of the direction of the gravity vector. Different paths taken to meet these requirements for different "omics" instruments are the subjects of this review. The advantages and disadvantages of these instruments and technological solutions and their level of readiness for deployment in space are discussed. Considering that effects of space environments on terrestrial organisms appear to be global, it is argued that high throughput instruments are essential to advance (1) biomedical and physiological studies to control and reduce space-related stressors on living systems, (2) application of biology to life support and in situ resource utilization, (3) planetary protection, and (4) basic research about the limits on life in space. It is also argued that carrying out measurements in situ provides considerable advantages over the traditional space biology paradigm that relies on post-flight data analysis.
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Affiliation(s)
- Fathi Karouia
- University of California San Francisco, Department of Pharmaceutical Chemistry, San Francisco, CA 94158, USA; NASA Ames Research Center, Exobiology Branch, MS239-4, Moffett Field, CA 94035, USA; NASA Ames Research Center, Flight Systems Implementation Branch, Moffett Field, CA 94035, USA.
| | | | - Andrew Pohorille
- University of California San Francisco, Department of Pharmaceutical Chemistry, San Francisco, CA 94158, USA; NASA Ames Research Center, Exobiology Branch, MS239-4, Moffett Field, CA 94035, USA.
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Abstract
This review focuses on recent advances in the field of microfluidic liquid chromatography from January 2013 through April 2015. Articles are organized by the type of stationary phase support focusing on device fabrication, column preparation, and use for specific applications. Additionally, a comprehensive table comparing chromatographic figures of merit for the work described is included as Appendix A as a reference for readers.
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Affiliation(s)
- James P. Grinias
- Department of Chemistry, University of Michigan, Ann Arbor,
MI 48109, USA
| | - Robert T. Kennedy
- Department of Chemistry, University of Michigan, Ann Arbor,
MI 48109, USA
- Department of Pharmacology, University of Michigan, Ann
Arbor, MI 48109, USA
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Lazar IM, Deng J, Smith N. Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor. J Vis Exp 2016:e53564. [PMID: 27078683 DOI: 10.3791/53564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The vast majority of mass spectrometry (MS)-based protein analysis methods involve an enzymatic digestion step prior to detection, typically with trypsin. This step is necessary for the generation of small molecular weight peptides, generally with MW < 3,000-4,000 Da, that fall within the effective scan range of mass spectrometry instrumentation. Conventional protocols involve O/N enzymatic digestion at 37 ºC. Recent advances have led to the development of a variety of strategies, typically involving the use of a microreactor with immobilized enzymes or of a range of complementary physical processes that reduce the time necessary for proteolytic digestion to a few minutes (e.g., microwave or high-pressure). In this work, we describe a simple and cost-effective approach that can be implemented in any laboratory for achieving fast enzymatic digestion of a protein. The protein (or protein mixture) is adsorbed on C18-bonded reversed-phase high performance liquid chromatography (HPLC) silica particles preloaded in a capillary column, and trypsin in aqueous buffer is infused over the particles for a short period of time. To enable on-line MS detection, the tryptic peptides are eluted with a solvent system with increased organic content directly in the MS ion source. This approach avoids the use of high-priced immobilized enzyme particles and does not necessitate any aid for completing the process. Protein digestion and complete sample analysis can be accomplished in less than ~3 min and ~30 min, respectively.
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Wang X, Bhadra CM, Yen Dang TH, Buividas R, Wang J, Crawford RJ, Ivanova EP, Juodkazis S. A bactericidal microfluidic device constructed using nano-textured black silicon. RSC Adv 2016. [DOI: 10.1039/c6ra03864f] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Nano-structured black silicon (bSi) was used as a substratum for the construction of a microfluidic device of the highly efficient bactericidal action of this nano-textured surface againstPseudomonas aeruginosabacteria.
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Affiliation(s)
- Xuewen Wang
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
- Melbourne Centre for Nanofabrication (MCN)
- Australian National Fabrication Facility (ANFF)
| | - Chris M. Bhadra
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
| | - Thi Hoang Yen Dang
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
| | - Ričardas Buividas
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
| | - James Wang
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
| | - Russell J. Crawford
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
| | - Elena P. Ivanova
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
| | - Saulius Juodkazis
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Australia
- Melbourne Centre for Nanofabrication (MCN)
- Australian National Fabrication Facility (ANFF)
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High-performance liquid chromatography on glass chips using precisely defined porous polymer monoliths as particle retaining elements. J Chromatogr A 2015; 1370:33-9. [PMID: 25459645 DOI: 10.1016/j.chroma.2014.10.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 09/30/2014] [Accepted: 10/03/2014] [Indexed: 11/20/2022]
Abstract
A stable and permanent integration of miniature packed bed separation columns into microfluidic systems is a major issue in nano liquid chromatography. Various approaches like differently shaped retaining elements or the use of key stone effect have been investigated. We show a flexible integration of miniature packed bed separation columns into microfluidic chips utilising common HPLC material achieved by laser-assisted generation of narrow, photopolymerised frits. The generated retaining elements serve as an in- and outlet frits for the columns. An optimised pre-polymeric solution, consisting of butyl acrylates and a porogen, allows a precise fabrication of frit-type structures with lengths of less than 100 m and the capability to withstand common slurry packing pressures of more than 250 bar. The separation of seven polycyclic aromatic hydrocarbons by pressure-driven, reversed-phase chromatography proves the high quality of the created chromatographic column inside a glass chip. Plate heights down to 2.9 were achieved and extremely fast separations with sub-second peak widths were performed in isocratic and gradient elution modes on very short columns (≤ 25 mm).
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Microfluidic aqueous two-phase extraction of bisphenol A using ionic liquid for high-performance liquid chromatography analysis. Anal Bioanal Chem 2015; 407:3617-25. [DOI: 10.1007/s00216-015-8572-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 02/12/2015] [Accepted: 02/17/2015] [Indexed: 11/26/2022]
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Wang X, Yi L, Mukhitov N, Schrell AM, Dhumpa R, Roper MG. Microfluidics-to-mass spectrometry: a review of coupling methods and applications. J Chromatogr A 2014; 1382:98-116. [PMID: 25458901 DOI: 10.1016/j.chroma.2014.10.039] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 10/09/2014] [Accepted: 10/12/2014] [Indexed: 02/05/2023]
Abstract
Microfluidic devices offer great advantages in integrating sample processes, minimizing sample and reagent volumes, and increasing analysis speed, while mass spectrometry detection provides high information content, is sensitive, and can be used in quantitative analyses. The coupling of microfluidic devices to mass spectrometers is becoming more common with the strengths of both systems being combined to analyze precious and complex samples. This review summarizes select achievements published between 2010 and July 2014 in novel coupling between microfluidic devices and mass spectrometers. The review is subdivided by the types of ionization sources employed, and the different microfluidic systems used.
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Affiliation(s)
- Xue Wang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, USA
| | - Lian Yi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, USA
| | - Nikita Mukhitov
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, USA
| | - Adrian M Schrell
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, USA
| | - Raghuram Dhumpa
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, USA
| | - Michael G Roper
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, USA.
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Dickherber A, Sorg B, Divi R, Ganguly A, Ossandon M. Guest editorial: funding for innovative cancer-relevant technology development. LAB ON A CHIP 2014; 14:3445-3446. [PMID: 25032520 DOI: 10.1039/c4lc90059f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Anthony Dickherber
- National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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Lab-on-a-Chip hyphenation with mass spectrometry: strategies for bioanalytical applications. Curr Opin Biotechnol 2014; 31:79-85. [PMID: 25232996 DOI: 10.1016/j.copbio.2014.08.009] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 08/28/2014] [Indexed: 11/23/2022]
Abstract
The Lab-on-a-Chip concept aims at miniaturizing laboratory processes to enable automation and/or parallelization via microfluidic chips that are capable of handling minute sample volumes. Mass spectrometry is nowadays the detection method of choice, because of its selectivity, sensitivity and wide application range. We review the most interesting examples over the last two-and-a-half years where the two techniques were used for bioanalytical applications. Furthermore, we discuss the merits and limitations of such hyphenated systems. We inventorize the reported applications and approaches. We see an ongoing trend towards chip-based liquid chromatography-mass spectrometry usage and small volume analysis applications, particularly in the field of proteomics where bottom-up approaches profit from chip-based technologies and hyphenation with complex cell cultures.
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