1
|
Li H, Foley AR, Shim J, Siradze K, Webb-Vargas Y, Sperinde G, Fischer SK. A generic anti-drug antibody assay for monoclonal antibody therapeutics with broad dynamic range eliminates the need for titer evaluation in preclinical studies. J Pharm Biomed Anal 2024; 249:116364. [PMID: 39047461 DOI: 10.1016/j.jpba.2024.116364] [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: 05/23/2024] [Revised: 07/11/2024] [Accepted: 07/13/2024] [Indexed: 07/27/2024]
Abstract
In preclinical protein therapeutic development studies, the emergence of anti-drug antibodies (ADA) can potentially impact drug pharmacokinetics and safety. While immunogenicity assessment is not mandatory in preclinical studies, banking samples can be valuable for interpreting unexpected pharmacological responses. Immunoassays that use generic reagents across different drug molecules can simplify ADA assessment and expedite sample evaluations. This work showcases the ability of the Gyrolab automated immunoassay platform to detect and quantify both drug-free and drug-bound (total) ADAs to monoclonal antibody (mAb) therapeutics in cynomolgus monkey preclinical studies. Compared to the previously reported total ADA ELISA, the Gyrolab assay exhibited a wider signal dynamic range and increased drug tolerance. Similar sensitivity, dynamic range and cut point factors were observed for four therapeutic mAbs of different isotypes using the Gyrolab assay. Here we present a comparison of ADA assays using bridging ELISA, total ADA ELISA and total ADA Gyrolab formats in a cynomolgus monkey study where the subjects were treated with a single dose of a mAb therapeutic. We demonstrate that the total ADA assays detected host ADA responses at earlier time points compared to the bridging ELISA. The Gyrolab assay has the best correlation between signal-to-noise (S/N) and titer over a wide ADA concentration range, highlighting the utility of Gyrolab in S/N reporting of ADA response to eliminate the need for secondary titer assays. Collectively, our results demonstrate that the generic ADA Gyrolab assay minimizes the necessity for extensive assay development and optimization for therapeutic mAbs, streamlining preclinical immunogenicity assessment to enable interpretation of pharmacological data.
Collapse
Affiliation(s)
- Hao Li
- BioAnalytical Sciences, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
| | - Alejandro R Foley
- BioAnalytical Sciences, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Jeongsup Shim
- BioAnalytical Sciences, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Ketevan Siradze
- BioAnalytical Sciences, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Yenny Webb-Vargas
- Nonclinical Biostatistics, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Gizette Sperinde
- BioAnalytical Sciences, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Saloumeh K Fischer
- BioAnalytical Sciences, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| |
Collapse
|
2
|
Lin B, Li B, Zeng W, Zhao Y, Li H, Gu Y, Liu P. Needle-Plug/Piston-Based Modular Mesoscopic Design Paradigm Coupled With Microfluidic Device for Point-of-Care Pooled Testing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2406076. [PMID: 39269286 DOI: 10.1002/advs.202406076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/26/2024] [Indexed: 09/15/2024]
Abstract
Emerging diagnostic scenarios, such as population surveillance by pooled testing and on-site rapid diagnosis, highlight the importance of advanced microfluidic systems for in vitro diagnostics. However, the widespread adoption of microfluidic technology faces challenges due to the lack of standardized design paradigms, posing difficulties in managing macro-micro fluidic interfaces, reagent storage, and complex macrofluidic operations. This paper introduces a novel modular-based mesoscopic design paradigm, featuring a core "needle-plug/piston" structure with versatile variants for complex fluidic operations. These structures can be easily coupled with various microfluidic platforms to achieve truly self-contained microsystems. Incorporated into a "3D extensible" design architecture, the mesoscopic design meets the demands of function integration, macrofluid manipulations, and flexible throughputs for point-of-care nucleic acid testing. Using this approach, an ultra-sensitive nucleic acid detection system is developed with a limit of detection of ten copies of SARS-CoV-2 per mL. This system efficiently conducts large-scale pooled testing from 50 pharyngeal swabs in a tube with an uncompromised sensitivity, enabling a truly "sample-in-answer-out" microsystem with exceptional performance.
Collapse
Affiliation(s)
- Baobao Lin
- Department of Biomedical Engineering, Tsinghua University, Beijing, 100084, China
| | - Bao Li
- Department of Biomedical Engineering, Tsinghua University, Beijing, 100084, China
| | - Wu Zeng
- Department of Biomedical Engineering, Tsinghua University, Beijing, 100084, China
- Changping Laboratory, Beijing, 102206, China
| | - Yulan Zhao
- Changping Laboratory, Beijing, 102206, China
| | - Huiping Li
- Department of Biomedical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yin Gu
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing, 100094, China
| | - Peng Liu
- Department of Biomedical Engineering, Tsinghua University, Beijing, 100084, China
- Changping Laboratory, Beijing, 102206, China
| |
Collapse
|
3
|
Varga GM, Spendal M, Sigh J, Søeborg T, Nielsen NJ. Interference from anti-drug antibodies on the quantification of insulin: a comparison of an LC-MS/MS assay and immunoassays. Bioanalysis 2024:1-11. [PMID: 39262387 DOI: 10.1080/17576180.2024.2389637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Accepted: 08/05/2024] [Indexed: 09/13/2024] Open
Abstract
Aim: This study aims to compare the anti-drug antibody (ADA) interference in four pharmacokinetic (PK) assays across different platforms (AlphaLISA, Gyrolab, LC-MS/MS) and to devise a strategy for ADA interference mitigation to improve the accuracy of measured drug in total PK assays.Materials & methods: Spiked test samples, created to achieve different ADA concentrations in human serum also containing an insulin analogue, were analyzed alongside pooled clinical samples using four assays.Results & conclusion: Interference was observed in all platforms. A novel approach using the Gyrolab mixing CD, including acid dissociation in the PK assay, significantly reduced interference and thereby improved relative error from >99% to ≤20% yielding measurements well within the acceptance criteria. Clinical sample results reinforced findings from the test samples.
Collapse
Affiliation(s)
- Georgina Marta Varga
- Analytical Chemistry Group, Department of Plant & Environmental Science, Faculty of Science, University of Copenhagen, Frederiksberg C, DK-1871, Denmark
- Non-clinical & Clinical Assay Sciences, Global Discovery & Development Sciences, Novo Nordisk A/S Måløv, DK-2760, Denmark
| | - Manca Spendal
- Analytical Chemistry Group, Department of Plant & Environmental Science, Faculty of Science, University of Copenhagen, Frederiksberg C, DK-1871, Denmark
- Non-clinical & Clinical Assay Sciences, Global Discovery & Development Sciences, Novo Nordisk A/S Måløv, DK-2760, Denmark
| | - Jens Sigh
- Non-clinical & Clinical Assay Sciences, Global Discovery & Development Sciences, Novo Nordisk A/S Måløv, DK-2760, Denmark
| | - Tue Søeborg
- Non-clinical & Clinical Assay Sciences, Global Discovery & Development Sciences, Novo Nordisk A/S Måløv, DK-2760, Denmark
| | - Nikoline Juul Nielsen
- Analytical Chemistry Group, Department of Plant & Environmental Science, Faculty of Science, University of Copenhagen, Frederiksberg C, DK-1871, Denmark
| |
Collapse
|
4
|
Mano Y, Kita K, Tsugaru M, Hotta K, Kojima T, Noritake KI. Generic UPLC-MS/MS and Gyrolab assays with blood microsampling for pharmacokinetic assessments of therapeutic antibodies in mice. J Pharm Biomed Anal 2024; 241:115993. [PMID: 38306865 DOI: 10.1016/j.jpba.2024.115993] [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: 12/04/2023] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
Serial blood sampling from one animal is useful to understand relationship between pharmacokinetics (PK) and pharmacological or toxicological events in individual animals. To assess its feasibility in mice, two therapeutic antibodies were used to evaluate impacts by different blood sampling methods, sampling sites, and assay platforms on PK. Denosumab and Panitumumab were intravenously administered to mice and only 0.05 mL of blood sample per point was collected from jugular vein or tail vein. Blood samples were collected serially from a mouse or collected by traditional composite sampling from each mouse. Plasma concentrations of the two drugs were assayed by a generic ligand binding assay using Gyrolab or by a generic ultra-performance liquid chromatography with tandem mass spectrometry. The two assay platforms showed acceptable accuracy and precision and gave comparable PK parameters of the drugs, suggesting that both assays were successfully applied to the PK assessments. Comparable results in the PK profiles were noted between serial and composite blood samplings and differences in the two sampling sites did not impact PK. These findings suggest that microsampling combined with generic assays is useful to assess PK profiles of therapeutic antibodies in mice.
Collapse
Affiliation(s)
- Yuji Mano
- Global Drug Metabolism and Pharmacokinetics, Eisai Co., Ltd., Tokodai 5-1-3, Tsukuba, Ibaraki 300-2635, Japan; Laboratory of Genomics-based Drug Discovery, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan.
| | - Kenji Kita
- DMPK & Bioanalysis Unit, Sunplanet Co., Ltd., Tokodai 5-1-3, Tsukuba, Ibaraki 300-2635, Japan
| | - Marina Tsugaru
- Drug Safety and Animal Care Technology Unit, Sunplanet Co., Ltd., Tokodai 5-1-3, Tsukuba, Ibaraki 300-2635, Japan
| | - Koichiro Hotta
- Global Drug Metabolism and Pharmacokinetics, Eisai Co., Ltd., Tokodai 5-1-3, Tsukuba, Ibaraki 300-2635, Japan
| | - Tomoko Kojima
- DMPK & Bioanalysis Unit, Sunplanet Co., Ltd., Tokodai 5-1-3, Tsukuba, Ibaraki 300-2635, Japan
| | - Ken-Ichi Noritake
- Drug Safety and Animal Care Technology Unit, Sunplanet Co., Ltd., Tokodai 5-1-3, Tsukuba, Ibaraki 300-2635, Japan
| |
Collapse
|
5
|
Gervais A, Rovida F, Avanzini MA, Croce S, Marchal A, Lin SC, Ferrari A, Thorball CW, Constant O, Le Voyer T, Philippot Q, Rosain J, Angelini M, Pérez Lorenzo M, Bizien L, Achille C, Trespidi F, Burdino E, Cassaniti I, Lilleri D, Fornara C, Sammartino JC, Cereda D, Marrocu C, Piralla A, Valsecchi C, Ricagno S, Cogo P, Neth O, Marín-Cruz I, Pacenti M, Sinigaglia A, Trevisan M, Volpe A, Marzollo A, Conti F, Lazzarotto T, Pession A, Viale P, Fellay J, Ghirardello S, Aubart M, Ghisetti V, Aiuti A, Jouanguy E, Bastard P, Percivalle E, Baldanti F, Puel A, MacDonald MR, Rice CM, Rossini G, Murray KO, Simonin Y, Nagy A, Barzon L, Abel L, Diamond MS, Cobat A, Zhang SY, Casanova JL, Borghesi A. Autoantibodies neutralizing type I IFNs underlie West Nile virus encephalitis in ∼40% of patients. J Exp Med 2023; 220:e20230661. [PMID: 37347462 PMCID: PMC10287549 DOI: 10.1084/jem.20230661] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/23/2023] Open
Abstract
Mosquito-borne West Nile virus (WNV) infection is benign in most individuals but can cause encephalitis in <1% of infected individuals. We show that ∼35% of patients hospitalized for WNV disease (WNVD) in six independent cohorts from the EU and USA carry auto-Abs neutralizing IFN-α and/or -ω. The prevalence of these antibodies is highest in patients with encephalitis (∼40%), and that in individuals with silent WNV infection is as low as that in the general population. The odds ratios for WNVD in individuals with these auto-Abs relative to those without them in the general population range from 19.0 (95% CI 15.0-24.0, P value <10-15) for auto-Abs neutralizing only 100 pg/ml IFN-α and/or IFN-ω to 127.4 (CI 87.1-186.4, P value <10-15) for auto-Abs neutralizing both IFN-α and IFN-ω at a concentration of 10 ng/ml. These antibodies block the protective effect of IFN-α in Vero cells infected with WNV in vitro. Auto-Abs neutralizing IFN-α and/or IFN-ω underlie ∼40% of cases of WNV encephalitis.
Collapse
Affiliation(s)
- Adrian Gervais
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
| | - Francesca Rovida
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | - Maria Antonietta Avanzini
- Laboratory of Pediatric Hemato-Oncology and Bone Marrow Transplantation, San Matteo Research Hospital, Pavia, Italy
| | - Stefania Croce
- UOSD Cell Factory, San Matteo Research Hospital, Pavia, Italy
| | - Astrid Marchal
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
| | - Shih-Ching Lin
- Departments of Medicine, Molecular Microbiology, Pathology and Immunology, and The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA
| | - Alessandro Ferrari
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | - Christian W. Thorball
- Precision Medicine Unit, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- School of Life Sciences, Swiss Federal Institute of Technology, Lausanne, Switzerland
| | - Orianne Constant
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, EFS, Montpellier, France
| | - Tom Le Voyer
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
| | - Quentin Philippot
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
| | - Jérémie Rosain
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- Study Center for Primary Immunodeficiencies, Necker Hospital for Sick Children, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Micol Angelini
- Neonatal Intensive Care Unit, San Matteo Research Hospital, Pavia, Italy
| | - Malena Pérez Lorenzo
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
| | - Lucy Bizien
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
| | - Cristian Achille
- Neonatal Intensive Care Unit, San Matteo Research Hospital, Pavia, Italy
| | - Francesca Trespidi
- Neonatal Intensive Care Unit, San Matteo Research Hospital, Pavia, Italy
| | - Elisa Burdino
- Laboratory of Microbiology and Virology, Amedeo di Savoia Hospital, ASL Città di Torino, Turin, Italy
| | - Irene Cassaniti
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | - Daniele Lilleri
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | - Chiara Fornara
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | | | | | - Chiara Marrocu
- Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, Milan, Italy
| | - Antonio Piralla
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | - Chiara Valsecchi
- Laboratory of Pediatric Hemato-Oncology and Bone Marrow Transplantation, San Matteo Research Hospital, Pavia, Italy
| | - Stefano Ricagno
- Department of Biosciences, University of Milan, Milan, Italy
- Institute of Molecular and Translational Cardiology, San Donato Hospital, Milan, Italy
| | - Paola Cogo
- Department of Medicine (DAME), Division of Pediatrics, University of Udine, Udine, Italy
| | - Olaf Neth
- Inborn Errors of Immunity Laboratory, Biomedicine Institute in Seville (IBiS), University of Seville/CSIC, “Red de Investigación Translacional en Infectología Pediátrica”, Seville, Spain
- Paediatric Infectious Diseases, Rheumatology and Immunology Unit, Virgen del Rocío University Hospital, Seville, Spain
| | - Inés Marín-Cruz
- Paediatric Infectious Diseases, Rheumatology and Immunology Unit, Virgen del Rocío University Hospital, Seville, Spain
| | - Monia Pacenti
- Microbiology and Virology Unit, Padova University Hospital, Padova, Italy
| | | | - Marta Trevisan
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Andrea Volpe
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Antonio Marzollo
- Pediatric Hematology, Oncology and Stem Cell Transplant Division, Padova University Hospital, Padova, Italy
| | - Francesca Conti
- Pediatric Unit, University Hospital of Bologna, Bologna, Italy
| | - Tiziana Lazzarotto
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Section of Microbiology, University of Bologna, Bologna, Italy
| | - Andrea Pession
- Pediatric Unit, University Hospital of Bologna, Bologna, Italy
| | - Pierluigi Viale
- Infectious Diseases Unit, University Hospital of Bologna, Bologna, Italy
| | - Jacques Fellay
- Precision Medicine Unit, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- School of Life Sciences, Swiss Federal Institute of Technology, Lausanne, Switzerland
| | | | - Mélodie Aubart
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- Pediatric Neurology Department, Necker-Enfants-Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Valeria Ghisetti
- Laboratory of Microbiology and Virology, Amedeo di Savoia Hospital, ASL Città di Torino, Turin, Italy
| | - Alessandro Aiuti
- Pediatric Immunohematology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Emmanuelle Jouanguy
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Paul Bastard
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Pediatric Hematology-Immunology and Rheumatology Unit, Necker Hospital for Sick Children, Assistante Publique-Hôpitaux de Paris, Paris, France
| | - Elena Percivalle
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | - Fausto Baldanti
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Microbiology and Virology Unit, San Matteo Research Hospital, Pavia, Italy
| | - Anne Puel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Margaret R. MacDonald
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Charles M. Rice
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Giada Rossini
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Kristy O. Murray
- Department of Pediatrics, Section of Pediatric Tropical Medicine, Center for Human Immunobiology, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA
| | - Yannick Simonin
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, EFS, Montpellier, France
| | - Anna Nagy
- National Reference Laboratory for Viral Zoonoses, National Public Health Center, Budapest, Hungary
| | - Luisa Barzon
- Microbiology and Virology Unit, Padova University Hospital, Padova, Italy
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Laurent Abel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Michael S. Diamond
- Departments of Medicine, Molecular Microbiology, Pathology and Immunology, and The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA
| | - Aurélie Cobat
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Shen-Ying Zhang
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Jean-Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Necker Hospital for Sick Children, Paris, France
- Paris Cité University, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Howard Hughes Medical Institute, New York, NY, USA
- Department of Pediatrics, Necker Hospital for Sick Children, Paris, France
| | - Alessandro Borghesi
- School of Life Sciences, Swiss Federal Institute of Technology, Lausanne, Switzerland
- Neonatal Intensive Care Unit, San Matteo Research Hospital, Pavia, Italy
| |
Collapse
|
6
|
Ram R, Kumar D, Sarkar A. A smartphone-integrated portable rotating platform for estimation of concentration level of plasma-creatinine using whole human blood. Talanta 2023; 253:123960. [PMID: 36195027 DOI: 10.1016/j.talanta.2022.123960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 12/13/2022]
Abstract
The measurement of creatinine concentration is performed to monitor the renal health. The devices available in modern clinical laboratories for measuring creatinine concentration are accurate and provide results rapidly but may be prohibitively expensive for resource-poor settings. Therefore, developing an inexpensive yet accurate device for measuring creatinine concentration is needed. Consequently, we developed a simple, affordable, and portable spinning disc for measuring plasma-creatinine concentration with 10 μL of whole human blood. 5 μL of the alkaline picrate solution is loaded into the device and rotated at 1000 rpm to transport this solution to the periphery of the microchannel. Further, 10 μL whole blood is loaded in the same channel and spun at 1300 rpm for 10 min. The creatinine in plasma reacts with alkaline picrate (Jaffe reaction), and the color of the mixture changes to yellow-orange color. The resulting color is captured with a smartphone, and creatinine concentration is estimated using an in-house developed app (CREA-SESE). The value of creatinine measured with the present device and the gold standard device are highly correlated (R2 = 0.998). The bias and standard deviation of the difference between the two measurements are 0.134 mg/dL and 0.143 mg/dL. This study demonstrates the feasibility of a simple, inexpensive, and portable rotating device for measuring creatinine concentration using 10 μL of whole human blood, which can easily be deployed to the underserved population in resource-constrained settings to monitor renal diseases.
Collapse
Affiliation(s)
- Rishi Ram
- Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Dharmendra Kumar
- Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Arnab Sarkar
- Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India.
| |
Collapse
|
7
|
Johannsen B, Baumgartner D, Karkossa L, Paust N, Karpíšek M, Bostanci N, Zengerle R, Mitsakakis K. ImmunoDisk—A Fully Automated Bead-Based Immunoassay Cartridge with All Reagents Pre-Stored. BIOSENSORS 2022; 12:bios12060413. [PMID: 35735560 PMCID: PMC9221266 DOI: 10.3390/bios12060413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 05/31/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022]
Abstract
In this paper, we present the ImmunoDisk, a fully automated sample-to-answer centrifugal microfluidic cartridge, integrating a heterogeneous, wash-free, magnetic- and fluorescent bead-based immunoassay (bound-free phase detection immunoassay/BFPD-IA). The BFPD-IA allows the implementation of a simple fluidic structure, where the assay incubation, bead separation and detection are performed in the same chamber. The system was characterized using a C-reactive protein (CRP) competitive immunoassay. A parametric investigation on air drying of protein-coupled beads for pre-storage at room temperature is presented. The key parameters were buffer composition, drying temperature and duration. A protocol for drying two different types of protein-coupled beads with the same temperature and duration using different drying buffers is presented. The sample-to-answer workflow was demonstrated measuring CRP in 5 µL of human serum, without prior dilution, utilizing only one incubation step, in 20 min turnaround time, in the clinically relevant concentration range of 15–115 mg/L. A reproducibility assessment over three disk batches revealed an average signal coefficient of variation (CV) of 5.8 ± 1.3%. A CRP certified reference material was used for method verification with a concentration CV of 8.6%. Our results encourage future testing of the CRP-ImmunoDisk in clinical studies and its point-of-care implementation in many diagnostic applications.
Collapse
Affiliation(s)
- Benita Johannsen
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (L.K.); (N.P.); (R.Z.)
- Correspondence: (B.J.); (K.M.); Tel.: +49-761-203-7252 (B.J.); +49-761-203-73252 (K.M.)
| | - Desirée Baumgartner
- Laboratory for MEMS Applications, IMTEK—Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
| | - Lena Karkossa
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (L.K.); (N.P.); (R.Z.)
| | - Nils Paust
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (L.K.); (N.P.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK—Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
| | - Michal Karpíšek
- BioVendor-Laboratorní Medicína a.s., Research & Diagnostic Products Division, Karasek 1767/1, Reckovice, 62100 Brno, Czech Republic;
- Faculty of Pharmacy, Masaryk University, Palackeho trida 1946/1, 61242 Brno, Czech Republic
| | - Nagihan Bostanci
- Section of Oral Health and Periodontology, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, 14104 Huddinge, Sweden;
| | - Roland Zengerle
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (L.K.); (N.P.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK—Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
| | - Konstantinos Mitsakakis
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (L.K.); (N.P.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK—Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
- Correspondence: (B.J.); (K.M.); Tel.: +49-761-203-7252 (B.J.); +49-761-203-73252 (K.M.)
| |
Collapse
|
8
|
Thakur A, Tan Z, Kameyama T, El-Khateeb E, Nagpal S, Malone S, Jamwal R, Nwabufo CK. Bioanalytical strategies in drug discovery and development. Drug Metab Rev 2021; 53:434-458. [PMID: 34310243 DOI: 10.1080/03602532.2021.1959606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A reliable, rapid, and effective bioanalytical method is essential for the determination of the pharmacokinetic, pharmacodynamic, and toxicokinetic parameters that inform the safety and efficacy profile of investigational drugs. The overall goal of bioanalytical method development is to elucidate the procedure and operating conditions under which a method can sufficiently extract, qualify, and/or quantify the analyte(s) of interest and/or their metabolites for the intended purpose. Given the difference in the physicochemical properties of small and large molecule drugs, different strategies need to be adopted for the development of an effective and efficient bioanalytical method. Herein, we provide an overview of different sample preparation strategies, analytical platforms, as well as procedures for achieving high throughput for bioanalysis of small and large molecule drugs.
Collapse
Affiliation(s)
- Aarzoo Thakur
- Innovations in Food and Chemical Safety, Agency for Science, Technology, and Research, Singapore, Singapore.,Skin Research Institute of Singapore, Agency for Science, Technology, and Research, Singapore, Singapore
| | - Zhiyuan Tan
- Department of Early Clinical Development, dMed-Clinipace, Shanghai, China
| | - Tsubasa Kameyama
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Eman El-Khateeb
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, UK.,Clinical Pharmacy Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Shakti Nagpal
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
| | | | - Rohitash Jamwal
- College of Pharmacy, University of Rhode Island, Kingston, RI, USA
| | | |
Collapse
|
9
|
Bastard P, Gervais A, Le Voyer T, Rosain J, Philippot Q, Manry J, Michailidis E, Hoffmann HH, Eto S, Garcia-Prat M, Bizien L, Parra-Martínez A, Yang R, Haljasmägi L, Migaud M, Särekannu K, Maslovskaja J, de Prost N, Tandjaoui-Lambiotte Y, Luyt CE, Amador-Borrero B, Gaudet A, Poissy J, Morel P, Richard P, Cognasse F, Troya J, Trouillet-Assant S, Belot A, Saker K, Garçon P, Rivière JG, Lagier JC, Gentile S, Rosen LB, Shaw E, Morio T, Tanaka J, Dalmau D, Tharaux PL, Sene D, Stepanian A, Megarbane B, Triantafyllia V, Fekkar A, Heath JR, Franco JL, Anaya JM, Solé-Violán J, Imberti L, Biondi A, Bonfanti P, Castagnoli R, Delmonte OM, Zhang Y, Snow AL, Holland SM, Biggs C, Moncada-Vélez M, Arias AA, Lorenzo L, Boucherit S, Coulibaly B, Anglicheau D, Planas AM, Haerynck F, Duvlis S, Nussbaum RL, Ozcelik T, Keles S, Bousfiha AA, El Bakkouri J, Ramirez-Santana C, Paul S, Pan-Hammarström Q, Hammarström L, Dupont A, Kurolap A, Metz CN, Aiuti A, Casari G, Lampasona V, Ciceri F, Barreiros LA, Dominguez-Garrido E, Vidigal M, Zatz M, van de Beek D, Sahanic S, Tancevski I, Stepanovskyy Y, Boyarchuk O, Nukui Y, Tsumura M, Vidaur L, Tangye SG, Burrel S, Duffy D, Quintana-Murci L, Klocperk A, Kann NY, Shcherbina A, Lau YL, Leung D, Coulongeat M, Marlet J, Koning R, Reyes LF, Chauvineau-Grenier A, Venet F, Monneret G, Nussenzweig MC, Arrestier R, Boudhabhay I, Baris-Feldman H, Hagin D, Wauters J, Meyts I, Dyer AH, Kennelly SP, Bourke NM, Halwani R, Sharif-Askari NS, Dorgham K, Sallette J, Sedkaoui SM, AlKhater S, Rigo-Bonnin R, Morandeira F, Roussel L, Vinh DC, Ostrowski SR, Condino-Neto A, Prando C, Bonradenko A, Spaan AN, Gilardin L, Fellay J, Lyonnet S, Bilguvar K, Lifton RP, Mane S, Anderson MS, Boisson B, Béziat V, Zhang SY, Vandreakos E, Hermine O, Pujol A, Peterson P, Mogensen TH, Rowen L, Mond J, Debette S, de Lamballerie X, Duval X, Mentré F, Zins M, Soler-Palacin P, Colobran R, Gorochov G, Solanich X, Susen S, Martinez-Picado J, Raoult D, Vasse M, Gregersen PK, Piemonti L, Rodríguez-Gallego C, Notarangelo LD, Su HC, Kisand K, Okada S, Puel A, Jouanguy E, Rice CM, Tiberghien P, Zhang Q, Cobat A, Abel L, Casanova JL. Autoantibodies neutralizing type I IFNs are present in ~4% of uninfected individuals over 70 years old and account for ~20% of COVID-19 deaths. Sci Immunol 2021; 6:eabl4340. [PMID: 34413139 PMCID: PMC8521484 DOI: 10.1126/sciimmunol.abl4340] [Citation(s) in RCA: 341] [Impact Index Per Article: 113.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/16/2021] [Indexed: 01/16/2023]
Abstract
Circulating autoantibodies (auto-Abs) neutralizing high concentrations (10 ng/mL, in plasma diluted 1 to 10) of IFN-α and/or -ω are found in about 10% of patients with critical COVID-19 pneumonia, but not in subjects with asymptomatic infections. We detect auto-Abs neutralizing 100-fold lower, more physiological, concentrations of IFN-α and/or -ω (100 pg/mL, in 1/10 dilutions of plasma) in 13.6% of 3,595 patients with critical COVID-19, including 21% of 374 patients > 80 years, and 6.5% of 522 patients with severe COVID-19. These antibodies are also detected in 18% of the 1,124 deceased patients (aged 20 days-99 years; mean: 70 years). Moreover, another 1.3% of patients with critical COVID-19 and 0.9% of the deceased patients have auto-Abs neutralizing high concentrations of IFN-β. We also show, in a sample of 34,159 uninfected subjects from the general population, that auto-Abs neutralizing high concentrations of IFN-α and/or -ω are present in 0.18% of individuals between 18 and 69 years, 1.1% between 70 and 79 years, and 3.4% >80 years. Moreover, the proportion of subjects carrying auto-Abs neutralizing lower concentrations is greater in a subsample of 10,778 uninfected individuals: 1% of individuals <70 years, 2.3% between 70 and 80 years, and 6.3% >80 years. By contrast, auto-Abs neutralizing IFN-β do not become more frequent with age. Auto-Abs neutralizing type I IFNs predate SARS-CoV-2 infection and sharply increase in prevalence after the age of 70 years. They account for about 20% of both critical COVID-19 cases in the over-80s, and total fatal COVID-19 cases.
Collapse
Affiliation(s)
- Paul Bastard
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France.
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Adrian Gervais
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Tom Le Voyer
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Jérémie Rosain
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Quentin Philippot
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Jérémy Manry
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Eleftherios Michailidis
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Hans-Heinrich Hoffmann
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Shohei Eto
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Marina Garcia-Prat
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, Universitat Autònoma de Barcelona (UAB), Barcelona, Catalonia, Spain
| | - Lucy Bizien
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Alba Parra-Martínez
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, Universitat Autònoma de Barcelona (UAB), Barcelona, Catalonia, Spain
| | - Rui Yang
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Liis Haljasmägi
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Mélanie Migaud
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Karita Särekannu
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Julia Maslovskaja
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Nicolas de Prost
- Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Henri Mondor, Assistance Publique - Hôpitaux de Paris (AP-HP)
- Groupe de Recherche Clinique CARMAS, Faculté de Santé de Créteil, Université Paris Est Créteil, 51, Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil Cedex, France
| | - Yacine Tandjaoui-Lambiotte
- Avicenne Hospital, Assistance Publique Hôpitaux de Paris, Bobigny, INSERM U1272 Hypoxia & Lung, Bobigny, France
| | - Charles-Edouard Luyt
- Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Médecine Intensive Réanimation, AP-HP, Paris, France
- INSERM UMRS_1166-iCAN, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Blanca Amador-Borrero
- Internal Medicine Department, Lariboisière Hospital, AP-HP, Paris University, Paris, France
| | - Alexandre Gaudet
- University of Lille, U1019-UMR9017-Center for Infection and Immunity of Lille, Lille, France
- CNRS, UMR9017, Lille, France
- INSERM, U1019, Lille, France
- Institut Pasteur de Lille, Lille, France
- CHU Lille, Pôle de Réanimation, Hôpital Roger Salengro, Lille, France
| | - Julien Poissy
- University of Lille, U1019-UMR9017-Center for Infection and Immunity of Lille, Lille, France
- CNRS, UMR9017, Lille, France
- INSERM, U1019, Lille, France
- Institut Pasteur de Lille, Lille, France
- CHU Lille, Pôle de Réanimation, Hôpital Roger Salengro, Lille, France
| | - Pascal Morel
- Etablissement Français du Sang, La Plaine-St Denis, France
- UMR 1098 RIGHT, Inserm, EFS, Université de Franche-Comté, Besançon, France
| | | | - Fabrice Cognasse
- SAINBIOSE, INSERM U1059, University of Lyon, Université Jean-Monnet-Saint-Etienne
- Etablissement Français du Sang, Auvergne Rhône-Alpes, St-Etienne, St-Etienne, France
| | - Jesus Troya
- Department of Internal Medicine, Infanta Leonor University Hospital, Madrid, Spain
| | - Sophie Trouillet-Assant
- Hospices Civils de Lyon, Lyon, France; International Center of Research in Infectiology, Lyon University, INSERM U1111, CNRS UMR 5308, ENS, UCBL, Lyon, France
| | - Alexandre Belot
- Joint Research Unit, Hospices Civils de Lyon-bio Mérieux, Hospices Civils de Lyon, Lyon Sud Hospital, Pierre-Bénite, France; International Center of Research in Infectiology, Lyon University, INSERM U1111, CNRS UMR 5308, ENS, UCBL, Lyon, France
- CNRS UMR 5308, ENS, UCBL, Lyon, France; National Referee Centre for Rheumatic, and Autoimmune and Systemic Diseases in Children (RAISE), Lyon, France; Lyon; Immunopathology Federation LIFE, Hospices Civils de Lyon, Lyon, France
| | - Kahina Saker
- Joint Research Unit, Hospices Civils de Lyon-bio Mérieux, Hospices Civils de Lyon, Lyon Sud Hospital, Pierre-Bénite, France; International Center of Research in Infectiology, Lyon University, INSERM U1111, CNRS UMR 5308, ENS, UCBL, Lyon, France
| | - Pierre Garçon
- Intensive Care Unit, Grand Hôpital de l'Est Francilien Site de Marne-la-Vallée, Jossigny, France
| | - Jacques G Rivière
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, Universitat Autònoma de Barcelona (UAB), Barcelona, Catalonia, Spain
| | - Jean-Christophe Lagier
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, APHM, MEPHI, Marseille, France
| | - Stéphanie Gentile
- Service d'Evaluation Médicale, Hôpitaux Universitaires de Marseille Assistance Publique Hôpitaux de Marseille (APHM), Marseille, France
- Aix Marseille University, School of Medicine - La Timone Medical Campus, EA 3279: CEReSS - Health Service Research and Quality of Life Center, Marseille, France
| | - Lindsey B Rosen
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
| | - Elana Shaw
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - David Dalmau
- Hospital Universitari Mutua Tarrassa, Tarrasa, Spain
| | | | - Damien Sene
- Internal Medicine Department, Lariboisière Hospital, AP-HP, Paris University, Paris, France
| | - Alain Stepanian
- Service d'Hématologie Biologique, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris and EA3518, Institut Universitaire d'Hématologie-Hôpital Saint Louis, Université Paris Diderot, Paris, France
| | - Bruno Megarbane
- Réanimation Médicale et Toxicologique, Hôpital Lariboisière (AP-HP), Université Paris-Diderot, INSERM Unité Mixte de Recherche Scientifique (UMRS) 1144
| | - Vasiliki Triantafyllia
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery, and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Arnaud Fekkar
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Service de Parasitologie-Mycologie, Groupe Hospitalier Pitié Salpêtrière, AP-HP, Paris, France
| | - James R Heath
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - José Luis Franco
- Primary Immunodeficiencies Group, Department of Microbiology and Parasitology, School of Medicine, University of Antioquia UDEA, Medellín, Colombia
| | - Juan-Manuel Anaya
- Center for Autoimmune Disease Research, School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Jordi Solé-Violán
- Critical Care Unit, University Hospital of Gran Canaria Dr. Negrín, Canarian Health System, Las Palmas de Gran Canaria, Canary Islands, Spain
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Luisa Imberti
- CREA Laboratory, Diagnostic Department, ASST Spedali Civili di Brescia, Brescia, Italy
| | - Andrea Biondi
- Pediatric Department and Centro Tettamanti-European Reference Network PaedCan, EuroBloodNet, MetabERN-University of Milano-Bicocca-Fondazione MBBM-Ospedale, San Gerardo, Monza, Italy
| | - Paolo Bonfanti
- Department of Infectious Diseases, San Gerardo Hospital-University of Milano-Bicocca, Monza, Italy
| | - Riccardo Castagnoli
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
- Department of Pediatrics, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Ottavia M Delmonte
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
| | - Yu Zhang
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
- NIAID Clinical Genomics Program, National Institutes of Health, Bethesda, USA
| | - Andrew L Snow
- Department of Pharmacology & Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Steven M Holland
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
| | - Catherine Biggs
- Department of Pediatrics, British Columbia Children's Hospital, The University of British Columbia, Vancouver, BC, Canada
| | - Marcela Moncada-Vélez
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Andrés Augusto Arias
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Primary Immunodeficiencies Group, University of Antioquia UdeA, Medellin, Colombia
- School of Microbiology, University of Antioquia UdeA, Medellin, Colombia
| | - Lazaro Lorenzo
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Soraya Boucherit
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Boubacar Coulibaly
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Dany Anglicheau
- Department of Nephrology and Transplantation, Necker University Hospital - APHP, Paris, France; INEM INSERM U 1151- CNRS UMR 8253, Paris University, Paris, France
| | - Anna M Planas
- Institute for Biomedical Research, Spanish Research Council, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Filomeen Haerynck
- Department of Paediatric Immunology and Pulmonology, Center for Primary Immunodeficiency Ghent, Jeffrey Modell Diagnosis and Research Center, Ghent University Hospital, Ghent, Belgium
| | - Sotirija Duvlis
- Faculty of Medical Sciences, University "Goce Delchev", Stip, Republic of Northern Macedonia
- Institute of public health of Republic of North Macedonia
| | - Robert L Nussbaum
- Cancer Genetics and Prevention Program, University of California San Francisco, San Francisco, USA
| | - Tayfun Ozcelik
- Department of Molecular Biology and Genetics, Bilkent University, Bilkent - Ankara, Turkey
| | - Sevgi Keles
- Meram Medical Faculty, Necmettin Erbakan University, Meram Medical Faculty, Konya, Turkey
| | - Ahmed A Bousfiha
- Clinical Immunology Unit, Department of Pediatric Infectious Disease, CHU Ibn Rushd and LICIA, Laboratoire d'Immunologie Clinique, Inflammation et Allergie, Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco
| | - Jalila El Bakkouri
- Clinical Immunology Unit, Department of Pediatric Infectious Disease, CHU Ibn Rushd and LICIA, Laboratoire d'Immunologie Clinique, Inflammation et Allergie, Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco
| | - Carolina Ramirez-Santana
- Primary Immunodeficiencies Group, Department of Microbiology and Parasitology, School of Medicine, University of Antioquia UDEA, Medellín, Colombia
- Center for Autoimmune Disease Research, School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Stéphane Paul
- Department of Immunology, CIC1408, GIMAP CIRI INSERM U1111, University Hospital of Saint-Etienne, Saint-Etienne, France
| | | | - Lennart Hammarström
- Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Annabelle Dupont
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID, F-59000 Lille, France
| | - Alina Kurolap
- The Genetics Institute, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Christine N Metz
- Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Alessandro Aiuti
- Pathogenesis and Therapy of Primary Immunodeficiencies Unit, San Raffaele, Milano, Italy
| | - Giorgio Casari
- Pathogenesis and Therapy of Primary Immunodeficiencies Unit, San Raffaele, Milano, Italy
| | - Vito Lampasona
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Lucila A Barreiros
- Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | | | | | - Sabina Sahanic
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | - Ivan Tancevski
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Oksana Boyarchuk
- Department of Children's Diseases and Pediatric Surgery, I.Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Yoko Nukui
- Department of Infection Control and Prevention, Medical Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Miyuki Tsumura
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Loreto Vidaur
- Intensive Care Department, Donostia University Hospital, San Sebastian, Spain
- Centro de Investigación en Red de Enfermedades Respiratorias-CIBERES - Instituto de Salud Carlos III, Madrid, España
| | | | - Sonia Burrel
- Sorbonne Université, INSERM U1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié Salpêtrière, Service de Virologie, Paris, France
| | | | - Lluis Quintana-Murci
- Human Evolutionary Genetics Unit, Institut Pasteur, CNRS UMR 2000, Paris, France
- Chair of Human Genomics and Evolution, Collège de France, Paris, France
| | - Adam Klocperk
- Department of Immunology, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Nelli Y Kann
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anna Shcherbina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Yu-Lung Lau
- Department of Paediatrics & Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Daniel Leung
- Department of Paediatrics & Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Matthieu Coulongeat
- Division of Geriatric Medicine, Tours University Medical Center, Tours, France
| | - Julien Marlet
- INSERM U1259, MAVIVH, Université de Tours, Tours, France
- Service de Bactériologie-Virologie-Hygiène, CHU de Tours, Tours, France
| | - Rutger Koning
- Department of Neurology, Amsterdam Neuroscience, Amsterdam, Netherlands
| | - Luis Felipe Reyes
- Department of Microbiology, Universidad de La Sabana, Chia, Colombia
- Department of Critical Care Medicine, Clinica Universidad de La Sabana, Chia, Colombia
| | | | - Fabienne Venet
- Laboratoire d'Immunologie, Hospices Civils de Lyon, Hôpital Edouard Herriot, Lyon, France
- EA 7426 « Pathophysiology of Injury-Induced Immunosuppression », Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Hôpital Edouard Herriot - BioMérieux, Lyon, France
| | - Guillaume Monneret
- Laboratoire d'Immunologie, Hospices Civils de Lyon, Hôpital Edouard Herriot, Lyon, France
- EA 7426 « Pathophysiology of Injury-Induced Immunosuppression », Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Hôpital Edouard Herriot - BioMérieux, Lyon, France
| | - Michel C Nussenzweig
- Laboratory of Molecular Immunology, Rockefeller University, New York, NY, USA
- Howard Hughes Medical Institute, New York, NY, USA
| | - Romain Arrestier
- Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Henri Mondor, Assistance Publique - Hôpitaux de Paris (AP-HP)
- Groupe de Recherche Clinique CARMAS, Faculté de Santé de Créteil, Université Paris Est Créteil, 51, Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil Cedex, France
| | - Idris Boudhabhay
- Department of Nephrology and Transplantation, Necker University Hospital - APHP, Paris, France; INEM INSERM U 1151- CNRS UMR 8253, Paris University, Paris, France
| | - Hagit Baris-Feldman
- The Genetics Institute, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - David Hagin
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Allergy and Clinical Immunology Unit, Department of Medicine, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Joost Wauters
- Medical Intensive care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Isabelle Meyts
- Laboratory of Inborn Errors of Immunity, Department of Immunology, Microbiology and Transplantation, KU Leuven, Leuven, Belgium
- Department of Pediatrics, Jeffrey Modell Diagnostic and Research Network Center, University Hospitals Leuven, Leuven, Belgium
| | - Adam H Dyer
- Department of Age-Related Healthcare, Tallaght University Hospital & Department of Medical Gerontology, School of Medicine, Trinity College Dublin
| | - Sean P Kennelly
- Department of Age-Related Healthcare, Tallaght University Hospital & Department of Medical Gerontology, School of Medicine, Trinity College Dublin
| | - Nollaig M Bourke
- Department of Medical Gerontology, School of Medicine, Trinity College Dublin
| | - Rabih Halwani
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Narjes Saheb Sharif-Askari
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Karim Dorgham
- Sorbonne Université, Inserm, Centre d'Immunologie et des Maladies Infectieuses, (CIMI- Paris), Paris, France
| | | | | | - Suzan AlKhater
- Department of Pediatrics, King Fahad Hospital of the University, Al-Khobar, Saudi Arabia
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Raúl Rigo-Bonnin
- Department of Clinical Laboratory, Hospital Universitari de Bellvitge, IDIBELL, Barcelona, Spain
| | - Francisco Morandeira
- Department of Immunology, Hospital Universitari de Bellvitge, IDIBELL, Barcelona, Spain
| | - Lucie Roussel
- Department of Medicine, Division of Infectious Diseases, McGill University Health Centre, Montréal, Québec, Canada
- Infectious Disease Susceptibility Program, Research Institute-McGill University Health Centre, Montréal, Québec, Canada
| | - Donald C Vinh
- Department of Medicine, Division of Infectious Diseases, McGill University Health Centre, Montréal, Québec, Canada
- Infectious Disease Susceptibility Program, Research Institute-McGill University Health Centre, Montréal, Québec, Canada
| | - Sisse Rye Ostrowski
- Department of Clinical Immunology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Antonio Condino-Neto
- Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Carolina Prando
- Faculdades Pequeno Príncipe, Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Brazil
| | | | - András N Spaan
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Laurent Gilardin
- Service de Médecine Interne, Hôpital universitaire Jean-Verdier, AP-HP, Bondy, France
- INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Jacques Fellay
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Precision Medicine Unit, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Swiss Institue of Bioinformatics, Lausanne, Switzerland
| | - Stanislas Lyonnet
- Imagine Institute, Université de Paris, INSERM UMR 1163, Paris, France
| | - Kaya Bilguvar
- Yale Center for Genome Analysis, Yale School of Medicine, New Haven, CT, USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
- Department of Medical Genetics, Acibadem University School of Medicine, Istanbul, Turkey
| | - Richard P Lifton
- Yale Center for Genome Analysis, Yale School of Medicine, New Haven, CT, USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
- Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, NY
| | - Shrikant Mane
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
| | - Mark S Anderson
- Diabetes Center, University of California, San Francisco, CA, USA
| | - Bertrand Boisson
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Vivien Béziat
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Shen-Ying Zhang
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Evangelos Vandreakos
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Olivier Hermine
- University of Paris, Imagine Institute, Paris, France
- Department of Hematology, Necker Hospital, AP-HP, Paris, France
| | - Aurora Pujol
- Neurometabolic Diseases Laboratory, IDIBELL-Hospital Duran i Reynals, CIBERER U759, and Catalan Institution of Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Pärt Peterson
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Trine H Mogensen
- Department of Infectious Diseases, Aarhus University Hospital, Skejby, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Lee Rowen
- Institute for Systems Biology, Seattle, WA 98109, USA
| | | | - Stéphanie Debette
- University of Bordeaux, INSERM, Bordeaux Population Health Center, UMR1219, F-33000 Bordeaux, France
- Bordeaux University Hospital, Department of Neurology, Institute of Neurodegenerative Diseases, F-33000 Bordeaux, France
| | - Xavier de Lamballerie
- IHU Méditerranée Infection, Unité des Virus Émergents, UVE: Aix Marseille University, IRD 190, INSERM 1207, Marseille, France
| | - Xavier Duval
- Inserm CIC 1425, Paris, France
- Université de Paris, IAME UMR-S 1137, INSERM, Paris, France
- AP-HP, Département Epidémiologie Biostatistiques et Recherche Clinique, Hôpital Bichat, Paris, France
- AP-HP, Bichat Claude Bernard Hospital, Infectious and Tropical Diseases Department, Paris, France
| | - France Mentré
- Inserm CIC 1425, Paris, France
- Université de Paris, IAME UMR-S 1137, INSERM, Paris, France
- AP-HP, Département Epidémiologie Biostatistiques et Recherche Clinique, Hôpital Bichat, Paris, France
| | - Marie Zins
- Université de Paris, Université Paris-Saclay, UVSQ, Inserm UMS11, Villejuif, France
| | - Pere Soler-Palacin
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, Universitat Autònoma de Barcelona (UAB), Barcelona, Catalonia, Spain
| | - Roger Colobran
- Immunology Division, Genetics Department, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, UAB, Barcelona, Catalonia, Spain
| | - Guy Gorochov
- Sorbonne Université, Inserm, Centre d'Immunologie et des Maladies Infectieuses, (CIMI- Paris), Paris, France
- Département d'Immunologie, Assistance Publique Hôpitaux de Paris (AP-HP), Hôpital Pitié-Salpétrière, Paris, France
| | - Xavier Solanich
- Department of Internal Medicine, Hospital Universitari de Bellvitge, IDIBELL, Barcelona, Spain
| | - Sophie Susen
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID, F-59000 Lille, France
| | - Javier Martinez-Picado
- IrsiCaixa AIDS Research Institute and Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- Infectious Diseases and Immunity, Center for Health and Social Care Research (CESS), Faculty of Medicine, University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Didier Raoult
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, APHM, MEPHI, Marseille, France
| | - Marc Vasse
- Service de Biologie Clinique & UMR-S 1176, Hopital Foch, Suresnes, France
| | - Peter K Gregersen
- Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Lorenzo Piemonti
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Carlos Rodríguez-Gallego
- Hospital Universitario de Gran Canaria Dr Negrín, Canarian Health System, Canary Islands, Spain
- Department of Clinical Sciences, University Fernando Pessoa Canarias, Las Palmas de Gran Canaria, Canary Islands, Spain
| | - Luigi D Notarangelo
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
| | - Helen C Su
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Kai Kisand
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Satoshi Okada
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Anne Puel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Emmanuelle Jouanguy
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Charles M Rice
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Pierre Tiberghien
- Etablissement Français du Sang, La Plaine-St Denis, France
- UMR 1098 RIGHT, Inserm, EFS, Université de Franche-Comté, Besançon, France
| | - Qian Zhang
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Aurélie Cobat
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Laurent Abel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Jean-Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France.
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Howard Hughes Medical Institute, New York, NY, USA
| |
Collapse
|
10
|
Klatt JN, Schwarz I, Hutzenlaub T, Zengerle R, Schwemmer F, Kosse D, Vincent J, Scaer M, Franaszczuk K, Wadsworth D, Paust N. Miniaturization, Parallelization, and Automation of Endotoxin Detection by Centrifugal Microfluidics. Anal Chem 2021; 93:8508-8516. [PMID: 34100587 DOI: 10.1021/acs.analchem.1c01041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We demonstrate microfluidic automation and parallelization of Limulus amebocyte lysate (LAL)-based bacterial endotoxin testing using centrifugal microfluidics. LAL is the standard reagent to test for endotoxin contaminations in injectable pharmaceuticals. The main features of the introduced system are more than 90% reduction of LAL consumption, from 100 μL/reaction to 9.6 μL/reaction, automated liquid handling to reduce opportunities for contamination and manual handling errors, and microfluidic parallelization by integrating 104 reactions into a single centrifugal microplate. In a single Eclipse microplate, 21 samples and their positive product controls are tested in duplicate. In addition, a standard curve with up to five points is generated, resulting in a total of 104 reactions. Test samples with a defined concentration of 0.5 endotoxin units per milliliter were tested, resulting in a coefficient of variation below 0.75%. A key feature for achieving a small coefficient of variation is ensuring the same path length along the microfluidic channels to the final reaction chambers for each sample and the reagent, so that any unspecific adsorption to the polymer surfaces does not affect the accuracy and precision. Analysis of a sample containing naturally occurring endotoxin with the developed microfluidic microplate yielded comparable results to the conventional testing method. A test with eight commercially available pharmaceuticals was found to pass all requirements for bacterial endotoxin testing as specified in the United States Pharmacopeia. The automated endotoxin testing system reveals specific advantages of centrifugal microfluidics for analytical biochemistry applications. Small liquid volumes are handled (metered, mixed, and aliquoted) in a very precise, highly integrated, and highly parallel manner within mass-fabricated microplates.
Collapse
Affiliation(s)
- Jan-Niklas Klatt
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.,Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Ingmar Schwarz
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Tobias Hutzenlaub
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.,Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Roland Zengerle
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.,Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Frank Schwemmer
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Dominique Kosse
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Jake Vincent
- Analytical Instruments, SUEZ Water Technologies & Solutions, 6060 Spine Road, Boulder, Colorado 80301, United States
| | - Michael Scaer
- Analytical Instruments, SUEZ Water Technologies & Solutions, 6060 Spine Road, Boulder, Colorado 80301, United States
| | - Krzysztof Franaszczuk
- Analytical Instruments, SUEZ Water Technologies & Solutions, 6060 Spine Road, Boulder, Colorado 80301, United States
| | - David Wadsworth
- Analytical Instruments, SUEZ Water Technologies & Solutions, 6060 Spine Road, Boulder, Colorado 80301, United States
| | - Nils Paust
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.,Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| |
Collapse
|
11
|
Bandara GC, Unitan LJ, Kremer MH, Shellhammer OT, Bracha S, Remcho VT. Wicking microfluidic approach to separate blood plasma from whole blood to facilitate downstream assays. Anal Bioanal Chem 2021; 413:4511-4520. [PMID: 34046699 DOI: 10.1007/s00216-021-03420-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/11/2021] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
Separation of blood plasma or serum from blood is essential for accurate analysis. Conventional blood separation requires instrumentation, reagents, and large sample volumes, limiting this process to laboratory environments with trained personnel. Full implementation of effective blood separation and analysis on microliter sample volumes for point of care (POC) diagnostics has proven extremely challenging resulting in a growing market demand, with common challenges such as expensive device fabrication processes or devices being comprised of materials which are not easily disposable. We developed a membrane-based wicking microfluidic device which is made using a simple fabrication process. This device uses a unique 3D flow channel geometry, fabricated in a polycaprolactone-filled glass microfiber membrane, to efficiently separate microliter sample volumes of blood. Colorimetric assay chemistries were integrated to demonstrate utility of these devices in POC diagnostics. The devices are capable of separating both fresh and anticoagulant-treated blood at microscale sample volumes (<15.0 μL). Modifications to the base device are also reported herein which increased sample volume capacity and separation efficiency. Integrated colorimetric assay enabled semi-quantitative detection of conjugated bilirubin in real blood samples (1.0-1.5 mg/dL). These blood separation devices, fabricated on polycaprolactone-filled glass microfiber, enabled effective blood plasma (anticoagulant-treated blood) and serum (fresh blood) separation with microscale sample volumes. Sample volume capacity and separation efficiency are customizable for specific applications and devices can be integrated with downstream assay chemistries to develop complete POC devices that offer blood separation and diagnostics at the same time on a single membrane.
Collapse
Affiliation(s)
- Gayan C Bandara
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331, USA
| | - Linus J Unitan
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331, USA
| | - Matthew H Kremer
- Materials Science Program, College of Engineering, Oregon State University, Corvallis, OR, 97331, USA
| | - Owen T Shellhammer
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331, USA
| | - Shay Bracha
- Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA.,Department of Small Animal Clinical Sciences, Texas A&M College of Veterinary Medicine & Biomedical Sciences, 4474 TAMU, College Station, TX, 77843, USA
| | - Vincent T Remcho
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331, USA. .,Materials Science Program, College of Engineering, Oregon State University, Corvallis, OR, 97331, USA.
| |
Collapse
|
12
|
Liu Y, Tan Y, Fu Q, Lin M, He J, He S, Yang M, Chen S, Zhou J. Reciprocating-flowing on-a-chip enables ultra-fast immunobinding for multiplexed rapid ELISA detection of SARS-CoV-2 antibody. Biosens Bioelectron 2020; 176:112920. [PMID: 33418184 PMCID: PMC7834412 DOI: 10.1016/j.bios.2020.112920] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/03/2020] [Accepted: 12/20/2020] [Indexed: 01/09/2023]
Abstract
The worldwide epidemic of novel coronavirus disease (COVID-19) has led to a strong demand for highly efficient immunobinding to achieve rapid and accurate on-site detection of SARS-CoV-2 antibodies. However, hour-scale time-consumption is usually required to ensure the adequacy of immunobinding on expensive large instruments in hospitals, and the common false negative or positive results often occur in rapid on-site immunoassay (e.g. immunochromatography). We solved this dilemma by presenting a reciprocating-flowing immunobinding (RF-immunobinding) strategy. RF-immunobinding enabled the antibodies in fluid contacting with the corresponding immobilized antigens on substrate repeatedly during continuous reciprocating-flowing, to achieve adequate immunobinding within 60 s. This strategy was further developed into an immunoassay method for the serological detection of 13 suspected COVID-19 patients. We obtained a 100% true negative and true positive rate and a limit of quantification (LOQ) of 4.14 pg/mL. Our strategy also can be a potential support for other areas related to immunorecognition, such as proteomics, immunopharmacology and immunohistochemistry. Our strategy that can reach saturation within 60 s may be the fastest immunobinding. Two-step reciprocating-flowing enzyme linked immunosorbent assay needs 5 min only. This ultra-fast immunobinding will speed up many on-site COVID-19 immunoassays. Easy fabrication and pressure control allow portable test in less-developed regions.
Collapse
Affiliation(s)
- Yiren Liu
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yayin Tan
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Quanying Fu
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Maoren Lin
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Jinxu He
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Suhua He
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Mei Yang
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Shoudeng Chen
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China.
| | - Jianhua Zhou
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
| |
Collapse
|
13
|
Schneider S, Erdemann F, Schneider O, Hutschalik T, Loskill P. Organ-on-a-disc: A platform technology for the centrifugal generation and culture of microphysiological 3D cell constructs amenable for automation and parallelization. APL Bioeng 2020; 4:046101. [PMID: 33062909 PMCID: PMC7532019 DOI: 10.1063/5.0019766] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/13/2020] [Indexed: 12/18/2022] Open
Abstract
Organ-on-a-chip (OoC) systems have evolved to a promising alternative to animal testing and traditional cell assays in drug development and enable personalization for precision medicine. So far, most OoCs do not fully exploit the potential of microfluidic systems regarding parallelization and automation. To date, many OoCs still consist of individual units, integrating only one single tissue per chip, and rely on manual, error-prone handling. However, with limited parallelization and automation, OoCs remain a low-throughput technology, preventing their widespread application in industry. To advance the concept of microphysiological systems and to overcome the limitations of current OoCs, we developed the Organ-on-a-disc (Organ-Disc) technology. Driven only by rotation, Organ-Discs enable the parallelized generation and culture of multiple 3D cell constructs per disc. We fabricated polydimethylsiloxane-free Organ-Discs using thermoplastic materials and scalable fabrication techniques. Utilizing precisely controllable centrifugal forces, cells were loaded simultaneously into 20 tissue chambers, where they formed uniform cell pellets. Subsequently, the cells compacted into dense 3D cell constructs and were cultured under vasculature-like perfusion through pump- and tubing-free, centrifugal pumping, solely requiring a low-speed rotation (<1 g) of the Organ-Disc. Here, we provide a proof-of-concept of the Organ-Disc technology, showing the parallelized generation of tissue-like cell constructs and demonstrating the controlled centrifugal perfusion. Furthermore, Organ-Discs enable versatile tissue engineering, generating cell constructs with a customizable shape and a layered multi-cell type structure. Overall, the Organ-Disc provides a user-friendly platform technology for the parallelization and automation of microphysiological systems, bringing this technology one-step closer to high-throughput applications in industry.
Collapse
Affiliation(s)
- Stefan Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
| | - Florian Erdemann
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
| | - Oliver Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
| | - Thomas Hutschalik
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
| | | |
Collapse
|
14
|
Ducrée J, Gravitt M, Walshe R, Bartling S, Etzrodt M, Harrington T. Open Platform Concept for Blockchain-Enabled Crowdsourcing of Technology Development and Supply Chains. FRONTIERS IN BLOCKCHAIN 2020. [DOI: 10.3389/fbloc.2020.586525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
15
|
Abstract
Lab-on-a-Disc (LoaD) biosensors are increasingly a promising solution for many biosensing applications. In the search for a perfect match between point-of-care (PoC) microfluidic devices and biosensors, the LoaD platform has the potential to be reliable, sensitive, low-cost, and easy-to-use. The present global pandemic draws attention to the importance of rapid sample-to-answer PoC devices for minimising manual intervention and sample manipulation, thus increasing the safety of the health professional while minimising the chances of sample contamination. A biosensor is defined by its ability to measure an analyte by converting a biological binding event to tangible analytical data. With evolving manufacturing processes for both LoaDs and biosensors, it is becoming more feasible to embed biosensors within the platform and/or to pair the microfluidic cartridges with low-cost detection systems. This review considers the basics of the centrifugal microfluidics and describes recent developments in common biosensing methods and novel technologies for fluidic control and automation. Finally, an overview of current devices on the market is provided. This review will guide scientists who want to initiate research in LoaD PoC devices as well as providing valuable reference material to researchers active in the field.
Collapse
|
16
|
Abe T, Okamoto S, Taniguchi A, Fukui M, Yamaguchi A, Utsumi Y, Ukita Y. A lab in a bento box: an autonomous centrifugal microfluidic system for an enzyme-linked immunosorbent assay. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:4858-4866. [PMID: 32996935 DOI: 10.1039/d0ay01459a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this paper, we report on the demonstration of a portable immunoassay system consisting of a small centrifugal microfluidic device driver (bento box) and a centrifugal microfluidic device made of polypropylene and fabricated by injection molding. The bento box consists of a cheap DC motor and an Arduino microcontroller. It has a simple structure and is the size of a bento box, that is, 150 × 150 × 100 (W × D × H) mm3. The developed device can automatically execute an enzyme-linked immunosorbent assay (ELISA) process under a steady rotating condition because it was designed based on the principle of CLOCK, which we previously presented. Here, we first executed an ELISA using a system consisting of the bento box and a device made of polydimethylsiloxane (PDMS) and compared it with a servo-controlled device driver. It was confirmed that the results of the bento box were consistent with those of the servo-controlled device driver. The limit of detection (LOD) using the bento box was 0.759 ng ml-1. Therefore, the controllability of the bento box was demonstrated. Next, we evaluated the injection-molded device through multi-step fluid control. We confirmed, through real-time observation of the device, that accurate flow control in the designed ELISA procedure was executed. Lastly, ELISA was employed for the measurements of mouse IgG using the system consisting of the bento box and the polypropylene device. The system performed all fluidic controls within 12 min; we confirmed the specificity of the system, and the LOD was 0.320 ng ml-1.
Collapse
Affiliation(s)
- Takaaki Abe
- Integrated Graduate School of Medicine, Engineering, and Agricultural Sciences, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi, Japan.
| | | | | | | | | | | | | |
Collapse
|
17
|
Miesler T, Wimschneider C, Brem A, Meinel L. Frugal Innovation for Point-of-Care Diagnostics Controlling Outbreaks and Epidemics. ACS Biomater Sci Eng 2020; 6:2709-2725. [PMID: 33463254 DOI: 10.1021/acsbiomaterials.9b01712] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Today epidemics of infectious diseases occur more often and spread both faster and further due to globalization and changes in our lifestyle. One way to meet these biological threats are so-called "Frugal Innovations", which focus on the development of affordable, rapid, and easy-to-use diagnostics with widespread use. In this context, point-of-care-tests (POCTs), performed at the patient's bedside, reduce extensive waiting times and unnecessary treatments and enable effective containment measures. This Perspective covers advances in POCT diagnostics on the basis of frugal innovation characteristics that will enable a faster, less expensive, and more convenient reaction to upcoming epidemics. Established POCT systems on the health care market, as well as currently evolving technological advancements in that sector are discussed. Progress in POCT technology and insights on how to most effectively use them allows the handling of more patients in a shorter time frame and consequently improves clinical outcomes at lower cost.
Collapse
Affiliation(s)
- Tobias Miesler
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg Germany
| | - Christine Wimschneider
- Chair of Technology Management, FAU Erlangen-Nürnberg, Dr.-Mack-Str. 81, 90762 Fürth, Germany
| | - Alexander Brem
- Institute of Entrepreneurship & Innovation, University of Stuttgart, Pfaffenwaldring 19, 70569 Stuttgart, Germany.,Mads Clausen Institute, University of Southern Denmark, Alsion 1, 6400 Sonderborg, Denmark
| | - Lorenz Meinel
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg Germany.,Helmholtz Institute for RNA-based Infection Research (HIRI), Helmholtz Center for Infection Research (HZI), Würzburg, Germany
| |
Collapse
|
18
|
Abstract
We present a powerful and compact batch-mode mixing and dilution technique for centrifugal microfluidic platforms. Siphon structures are designed to discretize continuous flows into a sequence of droplets of volumes as low as 100 nL. Using a passive, self-regulating 4-step mechanism, discrete volumes of two fluids are alternatingly issued into a common intermediate chamber. At its base, a capillary valve acts as a fluidic shift register; a single droplet is held in place while two or more droplets merge and pass through the capillary stop. These merged droplets are advectively mixed as they pass through the capillary valve and into the receiving chamber. Mixing is demonstrated for various combinations of liquids such as aqueous solutions as well as saline solutions and human plasma. The mixing quality is assessed on a quantitative scale by using a colorimetric method based on the mixing of potassium thiocyanate and iron(III) chloride, and in the case of human plasma using a spectroscopic method. For instance, volumes of 5 µL have been mixed in less than 20 s. Single-step dilutions up to 1:5 of plasma in a standard phosphate buffer solution are also demonstrated. This work describes the preliminary development of the mixing method which has since been integrated into a commercially available microfluidic cartridge.
Collapse
|
19
|
Ducrée J. Efficient Development of Integrated Lab-On-A-Chip Systems Featuring Operational Robustness and Manufacturability. MICROMACHINES 2019; 10:mi10120886. [PMID: 31861126 PMCID: PMC6953106 DOI: 10.3390/mi10120886] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 12/28/2022]
Abstract
The majority of commercially oriented microfluidic technologies provide novel point-of-use solutions for laboratory automation with important areas in the context of the life sciences such as health care, biopharma, veterinary medicine and agrifood as well as for monitoring of the environment, infrastructures and industrial processes. Such systems are often composed of a modular setup exhibiting an instrument accommodating rather conventional actuation, detection and control units which interfaces with a fluidically integrated "Lab-on-a-Chip" device handling (bio-)sample(s) and reagents. As the complex network of tiny channels, chambers and surface-functionalised zones can typically not be properly cleaned and regenerated, these microfluidic chips are mostly devised as single-use disposables. The availability of cost-efficient materials and associated structuring, functionalisation and assembly schemes thus represents a key ingredient along the commercialisation pipeline and will be a first focus of this work. Furthermore, and owing to their innate variability, investigations on biosamples mostly require the acquisition of statistically relevant datasets. Consequently, intermediate numbers of consistently performing chips are already needed during application development; to mitigate the potential pitfalls of technology migration and to facilitate regulatory compliance of the end products, manufacture of such pilot series should widely follow larger-scale production schemes. To expedite and de-risk the development of commercially relevant microfluidic systems towards high Technology Readiness Levels (TRLs), we illustrate a streamlined, manufacturing-centric platform approach employing the paradigms of tolerance-forgiving Design-for-Manufacture (DfM) and Readiness for Scale-up (RfS) from prototyping to intermediate pilot series and eventual mass fabrication. Learning from mature industries, we further propose pursuing a platform approach incorporating aspects of standardisation in terms of specification, design rules and testing methods for materials, components, interfaces, and operational procedures; this coherent strategy will foster the emergence of dedicated commercial supply chains and also improve the economic viability of Lab-on-a-Chip systems often targeting smaller niche markets by synergistically bundling technology development.
Collapse
Affiliation(s)
- Jens Ducrée
- FPC@DCU-Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Glasnevin, Dublin 9, Ireland
| |
Collapse
|
20
|
Hess JF, Zehnle S, Juelg P, Hutzenlaub T, Zengerle R, Paust N. Review on pneumatic operations in centrifugal microfluidics. LAB ON A CHIP 2019; 19:3745-3770. [PMID: 31596297 DOI: 10.1039/c9lc00441f] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Centrifugal microfluidics allows for miniaturization, automation and parallelization of laboratory workflows. The fact that centrifugal forces are always directed radially outwards has been considered a main drawback for the implementation of complex workflows leading to the requirement of additional actuation forces for pumping, valving and switching. In this work, we review and discuss the combination of centrifugal with pneumatic forces which enables transport of even complex liquids in any direction on centrifugal systems, provides actuation for valving and switching, offers alternatives for mixing and enables accurate and precise metering and aliquoting. In addition, pneumatics can be employed for timing to carry out any of the above listed unit operations in a sequential and cascaded manner. Firstly, different methods to generate pneumatic pressures are discussed. Then, unit operations and applications that employ pneumatics are reviewed. Finally, a tutorial section discusses two examples to provide insight into the design process. The first tutorial explains a comparatively simple implementation of a pneumatic siphon valve and provides a workflow to derive optimum design parameters. The second tutorial discusses cascaded pneumatic operations consisting of temperature change rate actuated valving and subsequent pneumatic pumping. In conclusion, combining pneumatic actuation with centrifugal microfluidics allows for the design of robust fluidic networks with simple fluidic structures that are implemented in a monolithic fashion. No coatings are required and the overall demands on manufacturing are comparatively low. We see the combination of centrifugal forces with pneumatic actuation as a key enabling technology to facilitate compact and robust automation of biochemical analysis.
Collapse
Affiliation(s)
- J F Hess
- Laboratory for MEMS Applications, Department of Microsystems Engineering - IMTEK, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - S Zehnle
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - P Juelg
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - T Hutzenlaub
- Laboratory for MEMS Applications, Department of Microsystems Engineering - IMTEK, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany and Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - R Zengerle
- Laboratory for MEMS Applications, Department of Microsystems Engineering - IMTEK, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany and Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - N Paust
- Laboratory for MEMS Applications, Department of Microsystems Engineering - IMTEK, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany and Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| |
Collapse
|
21
|
Iwamoto N, Takanashi M, Shimada T, Sasaki J, Hamada A. Comparison of Bevacizumab Quantification Results in Plasma of Non-small Cell Lung Cancer Patients Using Bioanalytical Techniques Between LC-MS/MS, ELISA, and Microfluidic-based Immunoassay. AAPS JOURNAL 2019; 21:101. [DOI: 10.1208/s12248-019-0369-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 07/27/2019] [Indexed: 12/15/2022]
|
22
|
Regulated LC-MS/MS bioanalysis technology for therapeutic antibodies and Fc-fusion proteins using structure-indicated approach. Drug Metab Pharmacokinet 2019; 34:19-24. [DOI: 10.1016/j.dmpk.2018.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/11/2018] [Accepted: 10/11/2018] [Indexed: 02/08/2023]
|
23
|
Wu HC, Chen YH, Shih CH. Disk-based enzyme-linked immunosorbent assays using the liquid-aliquoting and siphoning-evacuation technique. BIOMICROFLUIDICS 2018; 12:054101. [PMID: 30271516 PMCID: PMC6136921 DOI: 10.1063/1.5047281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
A cost-effective way to carry out multiple enzyme-linked immunosorbent assays (ELISAs) on a centrifugal platform using the liquid-aliquoting and siphoning-evacuation (LASE) technique was developed in this paper. Instead of preloading all the reagents in the reservoirs before testing, each reagent was loaded only one time during testing. The reagent was distributed into equal aliquots and delivered into reaction chambers by the aliquoting fluidic function. In addition, a siphoning-evacuation technique was developed to improve the washing efficiency and simplify the assay protocol. Furthermore, the entire assay protocol can be conducted using a two-step spinning protocol, which greatly reduces the cost of the motor control system. With the LASE technique, a low-cost and user-friendly ELISA system can be achieved.
Collapse
Affiliation(s)
- Ho-Chin Wu
- Department of Chemical Engineering, Feng Chia University, 40724 Taichung, Taiwan
| | - Yen-Hao Chen
- Department of Chemical Engineering, Feng Chia University, 40724 Taichung, Taiwan
| | - Chih-Hsin Shih
- Department of Chemical Engineering, Feng Chia University, 40724 Taichung, Taiwan
| |
Collapse
|
24
|
Honeychurch KC. Cheap and disposable gold and silver electrodes: Trends in the application of compact discs and digital versatile discs for electroanalytical chemistry. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.04.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
25
|
Zhao Y, Czilwik G, Klein V, Mitsakakis K, Zengerle R, Paust N. C-reactive protein and interleukin 6 microfluidic immunoassays with on-chip pre-stored reagents and centrifugo-pneumatic liquid control. LAB ON A CHIP 2017; 17:1666-1677. [PMID: 28426080 DOI: 10.1039/c7lc00251c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We present a fully automated centrifugal microfluidic method for particle based protein immunoassays. Stick-pack technology is employed for pre-storage and release of liquid reagents. Quantitative layout of centrifugo-pneumatic particle handling, including timed valving, switching and pumping is assisted by network simulations. The automation is exclusively controlled by the spinning frequency and does not require any additional means. New centrifugal microfluidic process chains are developed in order to sequentially supply wash buffer based on frequency dependent stick-pack opening and pneumatic pumping to perform two washing steps from one stored wash buffer; pre-store and re-suspend functionalized microparticles on a disk; and switch between the path of the waste fluid and the path of the substrate reaction product with 100% efficiency. The automated immunoassay concept is composed of on demand ligand binding, two washing steps, the substrate reaction, timed separation of the reaction products, and termination of the substrate reaction. We demonstrated separation of particles from three different liquids with particle loss below 4% and residual liquid remaining within particles below 3%. The automated immunoassay concept was demonstrated by means of detecting C-reactive protein (CRP) in the range of 1-81 ng ml-1 and interleukin 6 (IL-6) in the range of 64-13 500 pg ml-1. The limit of detection and quantification were 1.0 ng ml-1 and 2.1 ng ml-1 for CRP and 64 pg ml-1 and 205 pg ml-1 for IL-6, respectively.
Collapse
Affiliation(s)
- Y Zhao
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | | | | | | | | | | |
Collapse
|
26
|
Dincer C, Bruch R, Kling A, Dittrich PS, Urban GA. Multiplexed Point-of-Care Testing - xPOCT. Trends Biotechnol 2017; 35:728-742. [PMID: 28456344 PMCID: PMC5538621 DOI: 10.1016/j.tibtech.2017.03.013] [Citation(s) in RCA: 305] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/24/2017] [Accepted: 03/28/2017] [Indexed: 12/13/2022]
Abstract
Multiplexed point-of-care testing (xPOCT), which is simultaneous on-site detection of different analytes from a single specimen, has recently gained increasing importance for clinical diagnostics, with emerging applications in resource-limited settings (such as in the developing world, in doctors’ offices, or directly at home). Nevertheless, only single-analyte approaches are typically considered as the major paradigm in many reviews of point-of-care testing. Here, we comprehensively review the present diagnostic systems and techniques for xPOCT applications. Different multiplexing technologies (e.g., bead- or array-based systems) are considered along with their detection methods (e.g., electrochemical or optical). We also address the unmet needs and challenges of xPOCT. Finally, we critically summarize the in-field applicability and the future perspectives of the presented approaches. Simultaneous on-site measurement of different substances from a single sample, called multiplexed point-of-care testing, has recently become more and more important for in vitro diagnostics. The major aim for the development of xPOCT systems is the smart combination of a high-performing device with a low system complexity. Thus, the on-site tests are realized in a short time by non-experts and ensure comparable results with clinical and central laboratory findings. A multiplexing capability of up to 10 analytes has been sufficient for many recent xPOCT applications. The future of xPOCT devices will be driven by novel biotechnologies (e.g., aptamers) or targets (e.g., circulating RNAs or tumor cells, exosomes, and miRNAs), as well as applications like personalized medicine, homecare monitoring, and wearables.
Collapse
Affiliation(s)
- Can Dincer
- University of Freiburg, Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; University of Freiburg, Freiburg Materials Research Center (FMF), Stefan-Meier-Straße 21, 79104 Freiburg, Germany.
| | - Richard Bruch
- University of Freiburg, Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - André Kling
- ETH Zurich, Department of Biosystems Science and Engineering, Bioanalytics Group, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Petra S Dittrich
- ETH Zurich, Department of Biosystems Science and Engineering, Bioanalytics Group, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Gerald A Urban
- University of Freiburg, Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; University of Freiburg, Freiburg Materials Research Center (FMF), Stefan-Meier-Straße 21, 79104 Freiburg, Germany
| |
Collapse
|
27
|
Keller M, Czilwik G, Schott J, Schwarz I, Dormanns K, von Stetten F, Zengerle R, Paust N. Robust temperature change rate actuated valving and switching for highly integrated centrifugal microfluidics. LAB ON A CHIP 2017; 17:864-875. [PMID: 28181607 DOI: 10.1039/c6lc01536k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We present new unit operations for valving and switching in centrifugal microfluidics that are actuated by a temperature change rate (TCR) and controlled by the rotational frequency. Implementation is realized simply by introducing a comparatively large fluidic resistance to an air vent of a fluidic structure downstream of a siphon channel. During temperature decrease at a given TCR, the air pressure inside the downstream structure decreases and the fluidic resistance of the air vent slows down air pressure compensation allowing a thermally induced underpressure to build up temporarily. Thereby the rate of temperature change determines the time course of the underpressure for a given geometry. The thermally induced underpressure pulls the liquid against a centrifugal counterpressure above a siphon crest, which triggers the valve or switch. The centrifugal counterpressure (adjusted by rotation) serves as an independent control parameter to allow or prevent valving or switching at any TCR. The unit operations are thus compatible with any temperature or centrifugation protocol prior to valving or switching. In contrast to existing methods, this compatibility is achieved at no additional costs: neither additional fabrication steps nor additional disk space or external means are required besides global temperature control, which is needed for the assay. For the layout, an analytical model is provided and verified. The TCR actuated unit operations are demonstrated, first, by a stand-alone switch that routes the liquid to either one of the two collection chambers (n = 6) and, second, by studying the robustness of TCR actuated valving within a microfluidic cartridge for highly integrated nucleic acid testing. Valving could safely be prevented during PCR by compensating the thermally induced underpressure of 3.52 kPa with a centrifugal counterpressure at a rotational frequency of 30 Hz with a minimum safety range to valving of 2.03 kPa. Subsequently, a thermally induced underpressure of 2.55 kPa was utilized for robust siphon valving at 3 Hz with a minimum safety range of 2.32 kPa.
Collapse
Affiliation(s)
- M Keller
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany. and Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - G Czilwik
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - J Schott
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - I Schwarz
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - K Dormanns
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - F von Stetten
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany. and Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - R Zengerle
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany. and Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany and BIOSS - Centre for Biological Signalling Studies, University of Freiburg, Schaenzlestr. 18, 79104 Freiburg, Germany
| | - N Paust
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany. and Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| |
Collapse
|
28
|
Lutz S, Lopez-Calle E, Espindola P, Boehm C, Brueckner T, Spinke J, Marcinowski M, Keller T, Tgetgel A, Herbert N, Fischer T, Beiersdorf E. A fully integrated microfluidic platform for highly sensitive analysis of immunochemical parameters. Analyst 2017; 142:4206-4214. [DOI: 10.1039/c7an00547d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A fully integrated cartridge for highly sensitive immunochemical analysis of cardiac markers with new microfluidic functionalities is presented.
Collapse
|
29
|
Weng S, Li X, Li Y, Yu HZ. Optical disc technology-enabled analytical devices: from hardware modification to digitized molecular detection. Analyst 2016; 141:6190-6201. [PMID: 27704085 DOI: 10.1039/c6an01781a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Beyond their essential applications in portable data storage for the past 30 years, optical discs and corresponding recording/reading technologies have been extensively explored with the ultimate goal of creating novel analytical tools for on-site chemical analysis and point-of-care (POC) medical diagnosis. In particular, the disc media (CD, DVD, and BD) are proven to be inexpensive and versatile substrate materials for the preparation of various biochips and microfluidic systems; conventional computer drives and disc players are widely adapted for biochip signal reading and microscopic imaging. Herein we provide an overview of such optical disc technology-enabled analytical devices, e.g., integrated systems developed from specifically fabricated analog disks, modified optical drives, or adapted software algorithms.
Collapse
Affiliation(s)
- Samuel Weng
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| | | | | | | |
Collapse
|
30
|
Kim TH, Sunkara V, Park J, Kim CJ, Woo HK, Cho YK. A lab-on-a-disc with reversible and thermally stable diaphragm valves. LAB ON A CHIP 2016; 16:3741-3749. [PMID: 27534824 DOI: 10.1039/c6lc00629a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A lab-on-a-disc is a unique microfluidic platform that utilizes centrifugal force to pump liquids. This offers many benefits for point-of-care devices because it eliminates the need for connections to multiple pumps and complex tubing connections. A wide range of applications including clinical chemistry, immunoassay, cell analysis, and nucleic acid tests could be demonstrated on a spinning disc. To enable the performance of assays in a fully integrated and automated manner, the robust actuation of integrated valves is a prerequisite. However, conventional passive-type valves incur a critical drawback in that their operation is dependent on the rotational frequency, which is easily influenced by the channel geometry and chemistry, in addition to the physical properties of the liquids to be transferred. Even though a few active-type valving techniques permit the individual actuation of valves, independent of the rotational frequency, complex procedures for the fabrication as well as actuation mechanisms have prevented their broader acceptance in general applications. Here, we report on a lab-on-a-disc incorporating individually addressable diaphragm valves (ID valves) that enable the reversible and thermally stable actuation of multiple valves with unprecedented ease and robustness. These ID valves are configured from an elastic epoxy diaphragm embedded on a 3D printed push-and-twist valve, which can be easily actuated by a simple automatic driver unit. As a proof of concept experiment, an enzyme-linked immunosorbent assay (ELISA) and a polymerase chain reaction (PCR) were performed on a disc in a fully automated manner to demonstrate the robust, reversible, leak-free, and thermally stable actuation of the valves.
Collapse
Affiliation(s)
- Tae-Hyeong Kim
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | | | | | | | | | | |
Collapse
|
31
|
Kling A, Chatelle C, Armbrecht L, Qelibari E, Kieninger J, Dincer C, Weber W, Urban G. Multianalyte Antibiotic Detection on an Electrochemical Microfluidic Platform. Anal Chem 2016; 88:10036-10043. [DOI: 10.1021/acs.analchem.6b02294] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- André Kling
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Claire Chatelle
- University of Freiburg, Faculty of Biology and Centre
for Biological Signalling Studies, Schänzlestraße 18, DE-79104 Freiburg, Germany
| | - Lucas Armbrecht
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Edvina Qelibari
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Jochen Kieninger
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Can Dincer
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
- University of Freiburg, Freiburg Materials Research
Center, Stefan-Meier-Straße
21, DE-79104 Freiburg, Germany
| | - Wilfried Weber
- University of Freiburg, Faculty of Biology and Centre
for Biological Signalling Studies, Schänzlestraße 18, DE-79104 Freiburg, Germany
| | - Gerald Urban
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
- University of Freiburg, Freiburg Materials Research
Center, Stefan-Meier-Straße
21, DE-79104 Freiburg, Germany
| |
Collapse
|
32
|
Thompson BL, Gilbert RJ, Mejia M, Shukla N, Haverstick DM, Garner GT, Landers JP. Hematocrit analysis through the use of an inexpensive centrifugal polyester-toner device with finger-to-chip blood loading capability. Anal Chim Acta 2016; 924:1-8. [DOI: 10.1016/j.aca.2016.04.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 11/17/2022]
|
33
|
Cao X, deMello AJ, Elvira KS. Enhanced versatility of fluid control in centrifugal microfluidic platforms using two degrees of freedom. LAB ON A CHIP 2016; 16:1197-205. [PMID: 26931603 DOI: 10.1039/c5lc01530h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Centrifugal microfluidic platforms have significant potential in commercial applications because of their operational flexibility and minimal external infrastructure requirements. However, the dynamic and real-time control of fluid flow within traditional centrifugal microfluidic platforms is problematic. To address this significant limitation, we propose a two degrees of freedom platform, in which a digital servo is located at each end of an arm driven by a motor. This allows for reversible inward pumping between multiple chambers with perfect efficiency. Furthermore, the addition of a second degree of freedom allows position-based pressure controlled burst valves to be accessed and operated in an independent fashion. To demonstrate the efficacy of this technical innovation, we show rapid and configurable flow switching between three target chambers within a centrifugal microfluidic device.
Collapse
Affiliation(s)
- Xiaobao Cao
- Department of Chemistry and Applied Biosciences, Institute of Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland.
| | - A J deMello
- Department of Chemistry and Applied Biosciences, Institute of Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland.
| | - K S Elvira
- Department of Chemistry and Applied Biosciences, Institute of Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland.
| |
Collapse
|
34
|
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.
Collapse
Affiliation(s)
- Jordon Gilmore
- Mechanical Engineering Department, Clemson University, Clemson, SC 29634, USA.
| | - Monsur Islam
- Mechanical Engineering Department, Clemson University, Clemson, SC 29634, USA.
| | | |
Collapse
|
35
|
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.
Collapse
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.
| |
Collapse
|
36
|
Smith S, Mager D, Perebikovsky A, Shamloo E, Kinahan D, Mishra R, Torres Delgado SM, Kido H, Saha S, Ducrée J, Madou M, Land K, Korvink JG. CD-Based Microfluidics for Primary Care in Extreme Point-of-Care Settings. MICROMACHINES 2016; 7:mi7020022. [PMID: 30407395 PMCID: PMC6190444 DOI: 10.3390/mi7020022] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/08/2016] [Accepted: 01/19/2016] [Indexed: 02/02/2023]
Abstract
We review the utility of centrifugal microfluidic technologies applied to point-of-care diagnosis in extremely under-resourced environments. The various challenges faced in these settings are showcased, using areas in India and Africa as examples. Measures for the ability of integrated devices to effectively address point-of-care challenges are highlighted, and centrifugal, often termed CD-based microfluidic technologies, technologies are presented as a promising platform to address these challenges. We describe the advantages of centrifugal liquid handling, as well as the ability of a standard CD player to perform a number of common laboratory tests, fulfilling the role of an integrated lab-on-a-CD. Innovative centrifugal approaches for point-of-care in extremely resource-poor settings are highlighted, including sensing and detection strategies, smart power sources and biomimetic inspiration for environmental control. The evolution of centrifugal microfluidics, along with examples of commercial and advanced prototype centrifugal microfluidic systems, is presented, illustrating the success of deployment at the point-of-care. A close fit of emerging centrifugal systems to address a critical panel of tests for under-resourced clinic settings, formulated by medical experts, is demonstrated. This emphasizes the potential of centrifugal microfluidic technologies to be applied effectively to extremely challenging point-of-care scenarios and in playing a role in improving primary care in resource-limited settings across the developing world.
Collapse
Affiliation(s)
- Suzanne Smith
- Council for Scientific and Industrial Research, Meiring Naude Road, Brummeria, Pretoria 0001, South Africa.
| | - Dario Mager
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany.
| | - Alexandra Perebikovsky
- School of Engineering and School of Physical Sciences, University of California, Irvine, 4200 Engineering Gateway, Irvine, CA 92697-3975, USA.
| | - Ehsan Shamloo
- School of Engineering and School of Physical Sciences, University of California, Irvine, 4200 Engineering Gateway, Irvine, CA 92697-3975, USA.
| | - David Kinahan
- School of Physical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | - Rohit Mishra
- School of Physical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | - Saraí M Torres Delgado
- Simulation Laboratory, Department of Microsystems Engineering (IMTEK), University of Freiburg, Freiburg im Breisgau 79085, Germany.
| | - Horacio Kido
- School of Engineering and School of Physical Sciences, University of California, Irvine, 4200 Engineering Gateway, Irvine, CA 92697-3975, USA.
| | - Satadal Saha
- Foundation for Innovations in Health and JSV Innovations Private Limited, 44A S P Mukherjee Road, Kolkata 700026, India.
| | - Jens Ducrée
- School of Physical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | - Marc Madou
- School of Engineering and School of Physical Sciences, University of California, Irvine, 4200 Engineering Gateway, Irvine, CA 92697-3975, USA.
| | - Kevin Land
- Council for Scientific and Industrial Research, Meiring Naude Road, Brummeria, Pretoria 0001, South Africa.
| | - Jan G Korvink
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany.
| |
Collapse
|
37
|
Oh S, Park B, Jung J, Choi G, Lee DC, Kim DH, Seo T. Centrifugal loop-mediated isothermal amplification microdevice for rapid, multiplex and colorimetric foodborne pathogen detection. Biosens Bioelectron 2016; 75:293-300. [DOI: 10.1016/j.bios.2015.08.052] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 08/22/2015] [Indexed: 01/09/2023]
|
38
|
Schwemmer F, Hutzenlaub T, Buselmeier D, Paust N, von Stetten F, Mark D, Zengerle R, Kosse D. Centrifugo-pneumatic multi-liquid aliquoting - parallel aliquoting and combination of multiple liquids in centrifugal microfluidics. LAB ON A CHIP 2015; 15:3250-8. [PMID: 26138211 DOI: 10.1039/c5lc00513b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The generation of mixtures with precisely metered volumes is essential for reproducible automation of laboratory workflows. Splitting a given liquid into well-defined metered sub-volumes, the so-called aliquoting, has been frequently demonstrated on centrifugal microfluidics. However, so far no solution exists for assays that require simultaneous aliquoting of multiple, different liquids and the subsequent pairwise combination of aliquots with full fluidic separation before combination. Here, we introduce the centrifugo-pneumatic multi-liquid aliquoting designed for parallel aliquoting and pairwise combination of multiple liquids. All pumping and aliquoting steps are based on a combination of centrifugal forces and pneumatic forces. The pneumatic forces are thereby provided intrinsically by centrifugal transport of the assay liquids into dead end chambers to compress the enclosed air. As an example, we demonstrate simultaneous aliquoting of 1.) a common assay reagent into twenty 5 μl aliquots and 2.) five different sample liquids, each into four aliquots of 5 μl. Subsequently, the reagent and sample aliquots are simultaneously transported and combined into twenty collection chambers. All coefficients of variation for metered volumes were between 0.4%-1.0% for intra-run variations and 0.5%-1.2% for inter-run variations. The aliquoting structure is compatible to common assay reagents with a wide range of liquid and material properties, demonstrated here for contact angles between 20° and 60°, densities between 789 and 1855 kg m(-3) and viscosities between 0.89 and 4.1 mPa s. The centrifugo-pneumatic multi-liquid aliquoting is implemented as a passive fluidic structure into a single fluidic layer. Fabrication is compatible to scalable fabrication technologies such as injection molding or thermoforming and does not require any additional fabrication steps such as hydrophilic or hydrophobic coatings or integration of active valves.
Collapse
Affiliation(s)
- F Schwemmer
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110, Freiburg, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Strohmeier O, Keller M, Schwemmer F, Zehnle S, Mark D, von Stetten F, Zengerle R, Paust N. Centrifugal microfluidic platforms: advanced unit operations and applications. Chem Soc Rev 2015; 44:6187-229. [DOI: 10.1039/c4cs00371c] [Citation(s) in RCA: 290] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Review on miniaturization, integration, and automation of laboratory processes within centrifugal microfluidic platforms. For efficient implementation of applications, building blocks are categorized into unit operations and process chains.
Collapse
Affiliation(s)
- O. Strohmeier
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| | - M. Keller
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| | - F. Schwemmer
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
- University of Freiburg
- 79110 Freiburg
- Germany
| | | | - D. Mark
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| | - F. von Stetten
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| | - R. Zengerle
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| | - N. Paust
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| |
Collapse
|
40
|
La M, Park SM, Kim DS. Centrifugal multiplexing fixed-volume dispenser on a plastic lab-on-a-disk for parallel biochemical single-end-point assays. BIOMICROFLUIDICS 2015; 9:014104. [PMID: 25610516 PMCID: PMC4297279 DOI: 10.1063/1.4905940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 01/05/2015] [Indexed: 06/04/2023]
Abstract
In this study, a multiple sample dispenser for precisely metered fixed volumes was successfully designed, fabricated, and fully characterized on a plastic centrifugal lab-on-a-disk (LOD) for parallel biochemical single-end-point assays. The dispenser, namely, a centrifugal multiplexing fixed-volume dispenser (C-MUFID) was designed with microfluidic structures based on the theoretical modeling about a centrifugal circumferential filling flow. The designed LODs were fabricated with a polystyrene substrate through micromachining and they were thermally bonded with a flat substrate. Furthermore, six parallel metering and dispensing assays were conducted at the same fixed-volume (1.27 μl) with a relative variation of ±0.02 μl. Moreover, the samples were metered and dispensed at different sub-volumes. To visualize the metering and dispensing performances, the C-MUFID was integrated with a serpentine micromixer during parallel centrifugal mixing tests. Parallel biochemical single-end-point assays were successfully conducted on the developed LOD using a standard serum with albumin, glucose, and total protein reagents. The developed LOD could be widely applied to various biochemical single-end-point assays which require different volume ratios of the sample and reagent by controlling the design of the C-MUFID. The proposed LOD is feasible for point-of-care diagnostics because of its mass-producible structures, reliable metering/dispensing performance, and parallel biochemical single-end-point assays, which can identify numerous biochemical.
Collapse
Affiliation(s)
- Moonwoo La
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, South Korea
| | - Sang Min Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, South Korea
| |
Collapse
|
41
|
Shih CH, Wu HC, Chang CY, Huang WH, Yang YF. An enzyme-linked immunosorbent assay on a centrifugal platform using magnetic beads. BIOMICROFLUIDICS 2014; 8:052110. [PMID: 25538803 PMCID: PMC4222274 DOI: 10.1063/1.4896297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 09/11/2014] [Indexed: 05/19/2023]
Abstract
An automated, disk-based, enzyme-linked immunosorbent assay (ELISA) system is presented in this work. Magnetic beads were used as the antibody carriers to improve the assay sensitivity and shorten the reaction time. The magnetic module integrated on the system is capable of controlling the magnetic beads to either move in the incubation stage or immobilize at a specific location during washing stage. This controlling mechanism utilizes a passive controlling approach so that it can be performed through disk spinning without the need of active control from external devices. The movement of the magnetic beads was investigated and the optimal rotational speed was found to be related to the ratio of the processing time to the cycle time of the magnetic beads. Comparing to ELISA conducted on microtiter plates, similar test results could be achieved by the disk-based ELISA but the entire protocol can be finished automatically within 45 min with much less reagent consumption.
Collapse
Affiliation(s)
- Chih-Hsin Shih
- Department of Chemical Engineering, Feng Chia University , 100 Wenhwa Road, Taichung 40724, Taiwan
| | - Ho-Chin Wu
- Department of Chemical Engineering, Feng Chia University , 100 Wenhwa Road, Taichung 40724, Taiwan
| | - Chong-Yi Chang
- Department of Chemical Engineering, Feng Chia University , 100 Wenhwa Road, Taichung 40724, Taiwan
| | - Wen-Hong Huang
- Department of Chemical Engineering, Feng Chia University , 100 Wenhwa Road, Taichung 40724, Taiwan
| | - Yi-Feng Yang
- Shaoxing Pushkang Biotechnology Co., Ltd. , 398 Mahuan Road, Binhai New Area, Shaoxing, Zhejiang Province 312366, People's Republic of China
| |
Collapse
|
42
|
Nwankire CE, Czugala M, Burger R, Fraser KJ, O׳Connell TM, Glennon T, Onwuliri BE, Nduaguibe IE, Diamond D, Ducrée J. A portable centrifugal analyser for liver function screening. Biosens Bioelectron 2014; 56:352-8. [DOI: 10.1016/j.bios.2014.01.031] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 01/14/2014] [Accepted: 01/17/2014] [Indexed: 11/29/2022]
|
43
|
Yu Q, Wang X, Duan Y. Capillary-Based Three-Dimensional Immunosensor Assembly for High-Performance Detection of Carcinoembryonic Antigen Using Laser-Induced Fluorescence Spectrometry. Anal Chem 2014; 86:1518-24. [DOI: 10.1021/ac402973n] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qiaoling Yu
- Research Center of Analytical Instrumentation, Analytical &Testing Centre, Sichuan University, Chengdu 610064, People’s Republic of China
- Department
of Environmental and Food Engineering, Liuzhou Vocational and Technical College, Liuzhou 545006, People’s Republic of China
| | - Xu Wang
- Research Center of Analytical Instrumentation, Analytical &Testing Centre, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yixiang Duan
- Research Center of Analytical Instrumentation, Analytical &Testing Centre, Sichuan University, Chengdu 610064, People’s Republic of China
| |
Collapse
|
44
|
Song P, Hu R, Tng DJH, Yong KT. Moving towards individualized medicine with microfluidics technology. RSC Adv 2014. [DOI: 10.1039/c3ra45629c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
|
45
|
Fluidic automation of nitrate and nitrite bioassays in whole blood by dissolvable-film based centrifugo-pneumatic actuation. SENSORS 2013; 13:11336-49. [PMID: 24064595 PMCID: PMC3821360 DOI: 10.3390/s130911336] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 08/07/2013] [Accepted: 08/14/2013] [Indexed: 11/17/2022]
Abstract
This paper demonstrates the full centrifugal microfluidic integration and automation of all liquid handling steps of a 7-step fluorescence-linked immunosorbent assay (FLISA) for quantifying nitrate and nitrite levels in whole blood within about 15 min. The assay protocol encompasses the extraction of metered plasma, the controlled release of sample and reagents (enzymes, co-factors and fluorescent labels), and incubation and detection steps. Flow control is implemented by a rotationally actuated dissolvable film (DF) valving scheme. In the valves, the burst pressure is primarily determined by the radial position, geometry and volume of the valve chamber and its inlet channel and can thus be individually tuned over an extraordinarily wide range of equivalent spin rates between 1,000 RPM and 5,500 RPM. Furthermore, the vapour barrier properties of the DF valves are investigated in this paper in order to further show the potential for commercially relevant on-board storage of liquid reagents during shelf-life of bioanalytical, ready-to-use discs.
Collapse
|
46
|
Serum complement enhances the responses of genotoxin- and oxidative stress-sensitive Escherichia coli bioreporters. Biosens Bioelectron 2013; 46:175-82. [PMID: 23545153 DOI: 10.1016/j.bios.2013.02.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 12/27/2012] [Accepted: 02/19/2013] [Indexed: 11/21/2022]
Abstract
Bacterial bioreporters are limited in their abilities to detect large polar molecules due to their membrane selectivity. In this study, the activity of serum complement was used to bypass this undesired selectivity. Initially, the serum complement activity was assessed using the responses of a bacterial bioreporter harboring a recA::luxCDABE transcriptional fusion when exposed to the chemotherapy drug, mitomycin C (MMC). Using 50 °C-treated serum, the limit of detection for this bacterial sensor was lowered by nearly 450-fold, from 31 μg/L to 0.07 μg/L MMC. Real-time quantitative PCR demonstrated that serum-treated cultures responded more strongly to 100 μg/L MMC, with 3.1-fold higher recA expression levels. Subsequent experiments with other bioreporter strains also found enhanced sensitivities and responses. Finally, combining each of the above findings, tests were performed to demonstrate the potential application of the recA::luxCDABE bioreporter within a lab-on-a-CD platform as a point-of-care diagnostic to measure chemotherapeutic drug concentrations within blood.
Collapse
|
47
|
The Gyrolab™ immunoassay system: a platform for automated bioanalysis and rapid sample turnaround. Bioanalysis 2013; 5:1765-74. [DOI: 10.4155/bio.13.145] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background: The Gyrolab™ workstation benefits from fully automated transfer of reagents and samples originating from a storage microplate onto a compact disc containing solid-phase microstructures composed of a 15 nl streptavidin-derivitized bead bed. Results: This paper describes the development, full validation and use of the method in a regulated environment to measure a humanized bispecific monoclonal antibody–domain antibody (GSK-A) molecule using the Gyrolab immunoassay system in cynomolgus nonhuman primate plasma ranging from 5 to 250 µg/ml. The method was subsequently used in support of the TK portion of a regulated preclinical study in monkeys. Conclusion: The Gyrolab immunoassay system proved to be a viable alternative to traditional immunoassays and was used to support a regulated preclinical TK study. The speed of analysis that the Gyrolab provides was beneficial in meeting timelines to complete this project as multiple assays and repeat sample analysis could be completed in the same day.
Collapse
|
48
|
Kawai T, Naruishi N, Nagai H, Tanaka Y, Hagihara Y, Yoshida Y. Rotatable reagent cartridge for high-performance microvalve system on a centrifugal microfluidic device. Anal Chem 2013; 85:6587-92. [PMID: 23802811 DOI: 10.1021/ac400667e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Recently, microfluidic lab-on-a-CD (LabCD) has attracted attentions of researchers for its potential for pumpless, compact, and chip-inclusive on-site bioassay. To control the fluids in the LabCD, microvalves such as capillary, hydrophobic, siphon, and sacrificial valves have been employed. However, no microvalve can regulate more than one channel. In a complicated bioassay with many sequential mixing, washing, and wasting steps, thus, an intricate fluidic network with many microchannels, microvalves, and reservoirs is required, which increases assay costs in terms of both system development and chip preparation. To address this issue, we developed a rotatable reagent cartridge (RRC), which was a column-shaped tank and has several rooms to store different reagents. By embedding and rotating the RRC in the LabCD with a simple mechanical force, only the reagent in the room connected to the following channel was injected. By regulating the angle of the RRC to the LabCD, conservation and ejection of each reagent could be switched. Our developed RRC had no air vent hole, which was achieved by the gas-permeable gap between the bottle and cap parts of the RRC. The RRC could inject 230 nL-10 μL of reagents with good recoveries more than 96%. Finally, an enzymatic assay of L-lactate was demonstrated, where the number of valves and reservoirs were well minimized, significantly simplifying the fluidic system and increasing the channel integratability. Well quantitative analyses of 0-100 μM L-lactate could easily be carried out with R(2) > 0.999, indicating the practical utility of the RRC for microfluidic bioanalysis.
Collapse
Affiliation(s)
- Takayuki Kawai
- Stress Signal Research Group, Health Research Institute, National Institute of Advanced Industrial Science and Technology, Ikeda, Osaka, Japan.
| | | | | | | | | | | |
Collapse
|
49
|
Hall CM, Pearson JT, Patel V, Wienkers LC, Greene RJ. An extended range generic immunoassay for total human therapeutic antibodies in preclinical pharmacokinetic studies. J Immunol Methods 2013; 393:70-3. [PMID: 23570944 DOI: 10.1016/j.jim.2013.03.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 03/12/2013] [Accepted: 03/25/2013] [Indexed: 10/27/2022]
Abstract
Bioanalytical support of discovery programs for human monoclonal antibody therapies involves quantitation by immunoassay. Historically, preclinical samples have been analyzed by the traditional Enzyme-Linked Immuno-Sorbent Assay (ELISA). We investigated transferring our generic ELISA for quantitating human IgG constructs in preclinical serum samples to an automated microfluidics immunoassay platform based on nanoscale streptavidin bead columns. Transfer of our immunoassay to the automated platform resulted in not only the anticipated reduction in analysts' time required for manual manipulation (ELISA) but also a substantial increase in the dynamic range of the immunoassay. The generic nature and wide dynamic range of this automated microcolumn immunoassay permit bioanalytical support of novel therapeutic candidates without the need to develop new, specific assay reagents and minimize the chances that sample reassays will be required due to out of range concentration results. Improved process efficiencies and enhanced workflow during the analysis of preclinical PK samples that enable high throughput assessment of a human monoclonal antibody lead in early discovery programs.
Collapse
Affiliation(s)
- Colin M Hall
- Amgen Inc., 1201 Amgen Court West, Seattle, WA 98119-3105, USA
| | | | | | | | | |
Collapse
|
50
|
A high-throughput homogeneous immunoassay based on Förster resonance energy transfer between quantum dots and gold nanoparticles. Anal Chim Acta 2013; 763:43-9. [DOI: 10.1016/j.aca.2012.12.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 11/19/2012] [Accepted: 12/04/2012] [Indexed: 11/21/2022]
|