1
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Nelson DA, Thompson BL, Scott A, Nouwairi R, Birch C, DuVall JA, Roux DL, Li J, Root BE, Landers JP. Rapid, inexpensive fabrication of electrophoretic microdevices for fluorescence detection. Electrophoresis 2022; 43:1746-1754. [PMID: 35656648 PMCID: PMC9544361 DOI: 10.1002/elps.202200090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/22/2022] [Accepted: 05/24/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Daniel A. Nelson
- Department of Chemistry University of Virginia Charlottesville Virginia USA
| | | | - An‐Chi Scott
- Department of Chemistry University of Virginia Charlottesville Virginia USA
| | - Renna Nouwairi
- Department of Chemistry University of Virginia Charlottesville Virginia USA
| | - Christopher Birch
- Department of Chemistry University of Virginia Charlottesville Virginia USA
| | | | - Delphine Le Roux
- Department of Chemistry University of Virginia Charlottesville Virginia USA
| | - Jingyi Li
- Department of Chemistry University of Virginia Charlottesville Virginia USA
| | - Brian E. Root
- Department of Chemistry University of Virginia Charlottesville Virginia USA
| | - James P. Landers
- Department of Chemistry University of Virginia Charlottesville Virginia USA
- Department of Mechanical Engineering University of Virginia Charlottesville Virginia USA
- Department of Pathology University of Virginia Charlottesville Virginia USA
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2
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A novel method for inward fluid displacement in centrifugal microdevices for highly integrated nucleic acid processing with long-term reagent storage. Anal Chim Acta 2022; 1221:340063. [DOI: 10.1016/j.aca.2022.340063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/20/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022]
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3
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Mohd Asri MA, Nordin AN, Ramli N. Low-cost and cleanroom-free prototyping of microfluidic and electrochemical biosensors: Techniques in fabrication and bioconjugation. BIOMICROFLUIDICS 2021; 15:061502. [PMID: 34777677 PMCID: PMC8577868 DOI: 10.1063/5.0071176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/22/2021] [Indexed: 05/18/2023]
Abstract
Integrated microfluidic biosensors enable powerful microscale analyses in biology, physics, and chemistry. However, conventional methods for fabrication of biosensors are dependent on cleanroom-based approaches requiring facilities that are expensive and are limited in access. This is especially prohibitive toward researchers in low- and middle-income countries. In this topical review, we introduce a selection of state-of-the-art, low-cost prototyping approaches of microfluidics devices and miniature sensor electronics for the fabrication of sensor devices, with focus on electrochemical biosensors. Approaches explored include xurography, cleanroom-free soft lithography, paper analytical devices, screen-printing, inkjet printing, and direct ink writing. Also reviewed are selected surface modification strategies for bio-conjugates, as well as examples of applications of low-cost microfabrication in biosensors. We also highlight several factors for consideration when selecting microfabrication methods appropriate for a project. Finally, we share our outlook on the impact of these low-cost prototyping strategies on research and development. Our goal for this review is to provide a starting point for researchers seeking to explore microfluidics and biosensors with lower entry barriers and smaller starting investment, especially ones from low resource settings.
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Affiliation(s)
- Mohd Afiq Mohd Asri
- Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
| | - Anis Nurashikin Nordin
- Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
- Author to whom correspondence should be addressed:
| | - Nabilah Ramli
- Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
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4
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Kim S, Song J, Kim R, Lee NY, Kim MH, Park HG. Ferrowax microvalves for fully automated serial dilution on centrifugal microfluidic platforms. Biotechnol J 2021; 16:e2100131. [PMID: 34499815 DOI: 10.1002/biot.202100131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 11/07/2022]
Abstract
We herein describe a centrifugal microfluidic system to accomplish a fully automated serial dilution. The liquid flow on the disc was regulated by utilizing ferrowax microvalves systematically integrated into the channels within specially designed metering structures. By opening the differently positioned microvalves through irradiation of IR laser to allow metering, the same amount of diluent was serially eluted to the dilution chamber from the same diluent chamber. After dilution, the diluted samples were automatically delivered to the respective final product chambers by appropriately opening or closing the microvalves in the connecting channels, followed by rotating the disc. Based on this unique design principle, six consecutive two-fold and 10-fold dilutions were successfully achieved, yielding excellent accuracy in a wide dynamic range up to six orders of magnitude. Very importantly, the overall serial dilution process, including the diluent addition, mixing, and product transfer steps, was completed very rapidly within 5 min, due to the minimized procedures enabled by the automated actuation of the ferrowax microvalves at the rationally designed positions. We expect our centrifugal microfluidic system would serve as a powerful elemental tool to realize fully automated diagnostic microsystems involving the serial dilution process.
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Affiliation(s)
- Soohyun Kim
- Department of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jayeon Song
- Department of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - RaKyeom Kim
- Department of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
- Department of BioNano Technology, Gachon University, Gyeonggi-do, Republic of Korea
| | - Nae Yoon Lee
- Department of BioNano Technology, Gachon University, Gyeonggi-do, Republic of Korea
| | | | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
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5
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Juelg P, Specht M, Kipf E, Lehnert M, Eckert C, Keller M, Hutzenlaub T, von Stetten F, Zengerle R, Paust N. Automated serial dilutions for high-dynamic-range assays enabled by fill-level-coupled valving in centrifugal microfluidics. LAB ON A CHIP 2019; 19:2205-2219. [PMID: 31139783 DOI: 10.1039/c9lc00092e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We introduce a new concept for centrifugal microfluidics that enables fully automated serial dilution generation without any additional means besides temperature control. The key feature is time-independent, serial valving of mixing chambers by fill-level-coupled temperature change rate (FLC-TCR) actuated valving. The automated dilution is realized under continuous rotation which enables reliable control of wetting liquids without the need for any additional fabrication steps such as hydrophobic coating. All fluidic features are implemented in a monolithic fashion and disks are manufactured by foil thermoforming for scalable manufacturing. The new valving concept is demonstrated to reliably prevent valving if the diluted sample is not added to the mixing chamber (n = 30) and ensure valving if the dilution stage is completed (n = 15). The accuracy and precision of automated serial dilutions are verified by on-disk generation of qPCR standard curve dilutions and compared with manually generated reference dilutions. In a first step, the 5-log-stage standard curves are evaluated in a commercial qPCR thermocycler revealing a linearity of R2 ≥ 99.92% for the proposed LabDisk method vs. R2 ≥ 99.67% in manual reference dilutions. In a second step, the disk automated serial dilutions are combined with on-disk qPCR thermocycling and readout, both inside a LabDisk player. A 4-log-stage linearity of R2 ≥ 99.81% and a sensitivity of one leukemia associated ETV6-RUNX1 mutant DNA copy in a background of 100 000 wild-type DNA copies are achieved.
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Affiliation(s)
- Peter Juelg
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
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6
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Dai J, Xing Y, Xiao L, Li J, Cao R, He Y, Fang H, Periasamy A, Oberhozler J, Jin L, Landers JP, Wang Y, Li X. Microfluidic Disc-on-a-Chip Device for Mouse Intervertebral Disc-Pitching a Next-Generation Research Platform To Study Disc Degeneration. ACS Biomater Sci Eng 2019; 5:2041-2051. [PMID: 31763444 DOI: 10.1021/acsbiomaterials.8b01522] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Low back pain is the most common cause of disability worldwide, and intervertebral disc degeneration is a major cause of low back pain. Unfortunately, discogenic low back pain is often treated with symptomatic relief interventions, as no disease-modifying medications are yet available. Both to-be-deciphered disc biology/pathology and inadequate in vitro research platform are major hurdles limiting drug discovery progress for disc degeneration. Here, we developed a microfluidic disc-on-a-chip device tailored for mouse disc organ as an in vitro research platform. We hypothesize that continuous nutrients empowered by a microfluidic device would improve biological performance of cultured mouse discs compared to those in static condition. This device permitted continuous media flow to mimic in vivo disc microenvironment. Intriguingly, mouse discs cultured on the microfluidic device exhibited much higher cell viability, better preserved structure integrity and anabolic-catabolic metabolism in both nucleus pulposus and annulus fibrosus, for up to 21 days compared to those in static culture. This first "disc-on-a-chip" device lays groundwork for future preclinical studies in a relative long-term organ culture given the chronic nature of intervertebral disc degeneration. In addition, this platform is readily transformable into a streamlined in vitro research platform to recapitulate physiological and pathophysiological microenvironment to accelerate disc research.
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Affiliation(s)
- Jun Dai
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Charlottesville, Virginia 22908, United States.,Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue Qiaokou District, Wuhan 430030, P.R. China
| | - Yuan Xing
- Department of Surgery, University of Virginia, 345 Cripell Drive, Charlottesville, Virginia 22908, United States
| | - Li Xiao
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Charlottesville, Virginia 22908, United States
| | - Jingyi Li
- ∥ Department of Chemistry, University of Virginia, 409 McCormick Road, Charlottesville, Virginia 22904, United States
| | - Ruofan Cao
- W.M. Keck Center for Cellular Imaging, University of Virginia, 90 Geldard Drive, Charlottesville, Virginia 22904, United States
| | - Yi He
- Department of Surgery, University of Virginia, 345 Cripell Drive, Charlottesville, Virginia 22908, United States
| | - Huang Fang
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue Qiaokou District, Wuhan 430030, P.R. China
| | - Ammasi Periasamy
- W.M. Keck Center for Cellular Imaging, University of Virginia, 90 Geldard Drive, Charlottesville, Virginia 22904, United States
| | - Jose Oberhozler
- Department of Surgery, University of Virginia, 345 Cripell Drive, Charlottesville, Virginia 22908, United States
| | - Li Jin
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Charlottesville, Virginia 22908, United States
| | - James P Landers
- ∥ Department of Chemistry, University of Virginia, 409 McCormick Road, Charlottesville, Virginia 22904, United States.,Department of Mechanical and Aerospace Engineering, University of Virginia, 122 Engineer's Way, Charlottesville, Virginia 22904, United States.,Department of Pathology, University of Virginia, 415 Lane Road, Charlottesville, Virginia 22908, United States
| | - Yong Wang
- Department of Surgery, University of Virginia, 345 Cripell Drive, Charlottesville, Virginia 22908, United States
| | - Xudong Li
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Charlottesville, Virginia 22908, United States.,Department of Biomedical Engineering, University of Virginia, 415 Lane Road, Charlottesville, Virginia 22908, United States
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7
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Miyazaki CM, Kinahan DJ, Mishra R, Mangwanya F, Kilcawley N, Ferreira M, Ducrée J. Label-free, spatially multiplexed SPR detection of immunoassays on a highly integrated centrifugal Lab-on-a-Disc platform. Biosens Bioelectron 2018; 119:86-93. [PMID: 30103158 DOI: 10.1016/j.bios.2018.07.056] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/18/2018] [Accepted: 07/27/2018] [Indexed: 02/06/2023]
Abstract
As a direct, label-free method, Surface Plasmon Resonance (SPR) detection significantly reduces the needs for liquid handling and reagent storage compared to common enzyme-linked immunosorbent assays (ELISAs), thus enabling comprehensive multiplexing of bioassays on microfluidic sample-to-answer systems. This paper describes a highly integrated centrifugal Lab-on-a-Disc (LoaD) platform for automating the full process chain extending between plasma extraction and subsequent aliquoting to five parallelized reaction channels for quantitative SPR detection by an inexpensive smartphone camera. The entire, multi-step / multi-reagent operation completes within less than 1 h. While the emphasis of this work is on the fluidic automation and parallelization by previously introduced, very robust event-triggered valving and buoyancy-driven centripetal pumping schemes, we successfully implement an immunoglobulin G (IgG) assay; by specific functionalization of the detection surfaces, the same disc layout can readily be customised for immunoassays panels from whole blood.
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Affiliation(s)
- Celina M Miyazaki
- FPC@DCU - Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Dublin City University, Ireland; Federal University of São Carlos, Sorocaba, SP, Brazil.
| | - David J Kinahan
- FPC@DCU - Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Dublin City University, Ireland
| | - Rohit Mishra
- FPC@DCU - Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Dublin City University, Ireland
| | - Faith Mangwanya
- FPC@DCU - Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Dublin City University, Ireland
| | - Niamh Kilcawley
- FPC@DCU - Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Dublin City University, Ireland
| | | | - Jens Ducrée
- FPC@DCU - Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Dublin City University, Ireland.
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8
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Thompson BL, Wyckoff SL, Haverstick DM, Landers JP. Simple, Reagentless Quantification of Total Bilirubin in Blood Via Microfluidic Phototreatment and Image Analysis. Anal Chem 2017; 89:3228-3234. [DOI: 10.1021/acs.analchem.7b00354] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Brandon L. Thompson
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Sarah L. Wyckoff
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Doris M. Haverstick
- Department of Pathology, University of Virginia Health Science Center, Charlottesville, Virginia 22908, United States
| | - James P. Landers
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
- Department of Pathology, University of Virginia Health Science Center, Charlottesville, Virginia 22908, United States
- Department
of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
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9
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Thompson BL, Birch C, Nelson DA, Li J, DuVall JA, Le Roux D, Tsuei AC, Mills DL, Root BE, Landers JP. A centrifugal microfluidic device with integrated gold leaf electrodes for the electrophoretic separation of DNA. LAB ON A CHIP 2016; 16:4569-4580. [PMID: 27766331 DOI: 10.1039/c6lc00953k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Current conventional methods utilized for forensic DNA analysis are time consuming and labor-intensive requiring large and expensive equipment and instrumentation. While more portable Rapid DNA systems have been developed, introducing them to a working laboratory still necessitates a high cost of initiation followed by the recurrent cost of the devices. This has highlighted the need for an inexpensive, rapid and portable DNA analysis tool for human identification in a forensic setting. In order for an integrated DNA analysis system such as this to be realized, device operations must always be concluded by a rapid separation of short-tandem repeat (STR) DNA fragments. Contributing to this, we report the development of a unique, multi-level, centrifugal microdevice that can perform both reagent loading and DNA separation. The fabrication protocol was inspired by the print, cut and laminate (PCL) technique described previously by our group, and in accordance, offers a rapid and inexpensive option compared with existing approaches. The device comprises multiple polyester-toner fluidic layers, a cyclic olefin copolymer separation domain and integrated gold leaf electrodes. All materials are commercially-available and complement the PCL process in a way that permits fabrication of increasingly sought after single-use devices. All reagents, including a viscous sieving matrix, are loaded centrifugally, eliminating external pneumatic pumping, and the sample is separated in <5 minutes using an effective separation length of only 4 cm (reagent loading to completed separation, is <37 minutes). The protocol for gold leaf electrode manufacture yielded up to 30 electrodes for less than $3 (cost of a 79 mm × 79 mm gold leaf sheet) and when using a device combining these electrodes and centrifugal reagent/polymer loading, the electrophoretic separation of STR fragments with two base resolution was demonstrated. This exemplary performance makes the device an ideal candidate for further integration and development of an inexpensive, portable and rapid forensic human identification system.
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Affiliation(s)
- Brandon L Thompson
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
| | - Christopher Birch
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
| | - Daniel A Nelson
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
| | - Jingyi Li
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
| | - Jacquelyn A DuVall
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
| | - Delphine Le Roux
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
| | - An-Chi Tsuei
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
| | | | - Brian E Root
- Applied Research Institute, University of Virginia, Charlottesville, VA 22904, USA
| | - James P Landers
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA. and Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA 22904, USA and Department of Pathology, University of Virginia, Charlottesville, VA 22904, USA
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10
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Ouyang Y, Li J, Haverstick DM, Landers JP. Rotation-Driven Microfluidic Disc for White Blood Cell Enumeration Using Magnetic Bead Aggregation. Anal Chem 2016; 88:11046-11054. [DOI: 10.1021/acs.analchem.6b02903] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yiwen Ouyang
- Department
of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904, United States
| | - Jingyi Li
- Department
of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904, United States
| | - Doris M. Haverstick
- Department
of Pathology, University of Virginia Health Science Center, Charlottesville, Virginia 22908, United States
| | - James P. Landers
- Department
of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904, United States
- Department
of Pathology, University of Virginia Health Science Center, Charlottesville, Virginia 22908, United States
- Department
of Mechanical Engineering, University of Virginia, Engineer’s
Way, Charlottesville, Virginia 22904, United States
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11
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Cox JO, DeCarmen TS, Ouyang Y, Strachan B, Sloane H, Connon C, Gibson K, Jackson K, Landers JP, Cruz TD. A novel, integrated forensic microdevice on a rotation-driven platform: Buccal swab to STR product in less than 2 h. Electrophoresis 2016; 37:3046-3058. [PMID: 27620618 DOI: 10.1002/elps.201600307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/25/2016] [Accepted: 09/01/2016] [Indexed: 11/08/2022]
Abstract
This work describes the development of a novel microdevice for forensic DNA processing of reference swabs. This microdevice incorporates an enzyme-based assay for DNA preparation, which allows for faster processing times and reduced sample handling. Infrared-mediated PCR (IR-PCR) is used for STR amplification using a custom reaction mixture, allowing for amplification of STR loci in 45 min while circumventing the limitations of traditional block thermocyclers. Uniquely positioned valves coupled with a simple rotational platform are used to exert fluidic control, eliminating the need for bulky external equipment. All microdevices were fabricated using laser ablation and thermal bonding of PMMA layers. Using this microdevice, the enzyme-mediated DNA liberation module produced DNA yields similar to or higher than those produced using the traditional (tube-based) protocol. Initial microdevice IR-PCR experiments to test the amplification module and reaction (using Phusion Flash/SpeedSTAR) generated near-full profiles that suffered from interlocus peak imbalance and poor adenylation (significant -A). However, subsequent attempts using KAPA 2G and Pfu Ultra polymerases generated full STR profiles with improved interlocus balance and the expected adenylated product. A fully integrated run designed to test microfluidic control successfully generated CE-ready STR amplicons in less than 2 h (<1 h of hands-on time). Using this approach, high-quality STR profiles were developed that were consistent with those produced using conventional DNA purification and STR amplification methods. This method is a smaller, more elegant solution than current microdevice methods and offers a cheaper, hands-free, closed-system alternative to traditional forensic methods.
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Affiliation(s)
- Jordan O Cox
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
| | | | - Yiwen Ouyang
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Briony Strachan
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Hillary Sloane
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Cathey Connon
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Kemper Gibson
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Kimberly Jackson
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - James P Landers
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Tracey Dawson Cruz
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
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12
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Krauss ST, Remcho TP, Lipes SM, Aranda R, Maynard HP, Shukla N, Li J, Tontarski RE, Landers JP. Objective Method for Presumptive Field-Testing of Illicit Drug Possession Using Centrifugal Microdevices and Smartphone Analysis. Anal Chem 2016; 88:8689-97. [DOI: 10.1021/acs.analchem.6b01982] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shannon T. Krauss
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - Thomas P. Remcho
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - Shelby M. Lipes
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - Roman Aranda
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - Henry P. Maynard
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - Nishant Shukla
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - Jingyi Li
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - Richard E. Tontarski
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
| | - James P. Landers
- Department of Chemistry, ∥Department of Computer
Science, ⊥Department of Mechanical and Aerospace
Engineering, and #Department of Pathology, University of Virginia, Charlottesville, Virginia 22904, United States
- Office of the Chief
Scientist and §Forensic Exploitation Directorate, Defense Forensic Science Center, Forest
Park, Georgia 30297, United States
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13
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Gilmore J, Islam M, Martinez-Duarte R. Challenges in the Use of Compact Disc-Based Centrifugal Microfluidics for Healthcare Diagnostics at the Extreme Point of Care. MICROMACHINES 2016; 7:E52. [PMID: 30407426 PMCID: PMC6189906 DOI: 10.3390/mi7040052] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/15/2016] [Accepted: 02/22/2016] [Indexed: 01/26/2023]
Abstract
Since its inception, Compact Disc (CD)-based centrifugal microfluidic technology has drawn a great deal of interest within research communities due to its potential use in biomedical applications. The technology has been referred to by different names, including compact-disc microfluidics, lab-on-a-disk, lab-on-a-CD and bio-disk. This paper critically reviews the state-of-the-art in CD-based centrifugal microfluidics devices and attempts to identify the challenges that, if solved, would enable their use in the extreme point of care. Sample actuation, manufacturing, reagent storage and implementation, target multiplexing, bio-particle detection, required hardware and system disposal, and sustainability are the topics of focus.
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Affiliation(s)
- Jordon Gilmore
- Mechanical Engineering Department, Clemson University, Clemson, SC 29634, USA.
| | - Monsur Islam
- Mechanical Engineering Department, Clemson University, Clemson, SC 29634, USA.
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Tang M, Wang G, Kong SK, Ho HP. A Review of Biomedical Centrifugal Microfluidic Platforms. MICROMACHINES 2016; 7:E26. [PMID: 30407398 PMCID: PMC6190084 DOI: 10.3390/mi7020026] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/03/2016] [Indexed: 12/14/2022]
Abstract
Centrifugal microfluidic or lab-on-a-disc platforms have many advantages over other microfluidic systems. These advantages include a minimal amount of instrumentation, the efficient removal of any disturbing bubbles or residual volumes, and inherently available density-based sample transportation and separation. Centrifugal microfluidic devices applied to biomedical analysis and point-of-care diagnostics have been extensively promoted recently. This paper presents an up-to-date overview of these devices. The development of biomedical centrifugal microfluidic platforms essentially covers two categories: (i) unit operations that perform specific functionalities, and (ii) systems that aim to address certain biomedical applications. With the aim to provide a comprehensive representation of current development in this field, this review summarizes progress in both categories. The advanced unit operations implemented for biological processing include mixing, valving, switching, metering and sequential loading. Depending on the type of sample to be used in the system, biomedical applications are classified into four groups: nucleic acid analysis, blood analysis, immunoassays, and other biomedical applications. Our overview of advanced unit operations also includes the basic concepts and mechanisms involved in centrifugal microfluidics, while on the other hand an outline on reported applications clarifies how an assembly of unit operations enables efficient implementation of various types of complex assays. Lastly, challenges and potential for future development of biomedical centrifugal microfluidic devices are discussed.
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Affiliation(s)
- Minghui Tang
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
| | - Guanghui Wang
- Institute of Optical Communication Engineering, Nanjing University, Jiangsu 210009, China.
| | - Siu-Kai Kong
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
| | - Ho-Pui Ho
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
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15
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Thompson BL, Birch C, Li J, DuVall JA, Le Roux D, Nelson DA, Tsuei AC, Mills DL, Krauss ST, Root BE, Landers JP. Microfluidic enzymatic DNA extraction on a hybrid polyester-toner-PMMA device. Analyst 2016; 141:4667-75. [DOI: 10.1039/c6an00209a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A polyester-toner-poly(methyl methacrylate) (PMMA) hybrid microdevice, which centrifugally introduces EA1 enzyme to a buccal swab for rapid DNA extraction.
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Affiliation(s)
| | | | - Jingyi Li
- Departments of Chemistry
- University of Virginia
- Charlottesville
- USA
| | | | - Delphine Le Roux
- Departments of Chemistry
- University of Virginia
- Charlottesville
- USA
| | - Daniel A. Nelson
- Departments of Chemistry
- University of Virginia
- Charlottesville
- USA
| | - An-Chi Tsuei
- Departments of Chemistry
- University of Virginia
- Charlottesville
- USA
| | | | | | - Brian E. Root
- Applied Research Institute
- University of Virginia
- Charlottesville
- USA
| | - James P. Landers
- Departments of Chemistry
- University of Virginia
- Charlottesville
- USA
- Department of Mechanical and Aerospace Engineering
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