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Chew BS, Trinh NN, Koch DT, Borras E, Levasseur MK, Simms LA, McCartney MM, Gibson P, Kenyon NJ, Davis CE. Data-Driven Approach to Modeling Microfabricated Chemical Sensor Manufacturing. Anal Chem 2024; 96:364-372. [PMID: 38156894 PMCID: PMC11015434 DOI: 10.1021/acs.analchem.3c04394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
We have developed a statistical model-based approach to the quality analysis (QA) and quality control (QC) of a gas micro pre-concentrator chip (μPC) performance when manufactured at scale for chemical and biochemical analysis of volatile organic compounds (VOCs). To test the proposed model, a medium-sized university-led production batch of 30 wafers of chips were subjected to rigorous chemical performance testing. We quantitatively report the outcomes of each manufacturing process step leading to the final functional chemical sensor chip. We implemented a principal component analysis (PCA) model to score individual chip chemical performance, and we observed that the first two principal components represent 74.28% of chemical testing variance with 111 of 118 viable chips falling into the 95% confidence interval. Chemical performance scores and chip manufacturing data were analyzed using a multivariate regression model to determine the most influential manufacturing parameters and steps. In our analysis, we find the amount of sorbent mass present in the chip (variable importance score = 2.6) and heater and the RTD resistance values (variable importance score = 1.1) to be the manufacturing parameters with the greatest impact on chemical performance. Other non-obvious latent manufacturing parameters also had quantified influence. Statistical distributions for each manufacturing step will allow future large-scale production runs to be statistically sampled during production to perform QA/QC in a real-time environment. We report this study as the first data-driven, model-based production of a microfabricated chemical sensor.
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Affiliation(s)
- Bradley S. Chew
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
| | - Nhi N. Trinh
- Department of Biomedical Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
| | - Dylan T. Koch
- Department of Electrical and Computer Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
| | - Eva Borras
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
| | - Michael K. Levasseur
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
| | - Leslie A. Simms
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
| | - Mitchell M. McCartney
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
- VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655
| | - Patrick Gibson
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
| | - Nicholas J. Kenyon
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
- VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655
- Department of Internal Medicine, 4150 V Street, University of California Davis, Sacramento, CA 95817
| | - Cristina E. Davis
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616
- UC Davis Lung Center, One Shields Avenue, University of California Davis, Davis, CA 95616
- VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655
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Borras E, McCartney MM, Rojas DE, Hicks TL, Tran NK, Tham T, Juarez MM, Franzi L, Harper RW, Davis CE, Kenyon NJ. Oxylipin concentration shift in exhaled breath condensate (EBC) of SARS-CoV-2 infected patients. J Breath Res 2023; 17:10.1088/1752-7163/acea3d. [PMID: 37489864 PMCID: PMC10446499 DOI: 10.1088/1752-7163/acea3d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 07/25/2023] [Indexed: 07/26/2023]
Abstract
Infection of airway epithelial cells with severe acute respiratory coronavirus 2 (SARS-CoV-2) can lead to severe respiratory tract damage and lung injury with hypoxia. It is challenging to sample the lower airways non-invasively and the capability to identify a highly representative specimen that can be collected in a non-invasive way would provide opportunities to investigate metabolomic consequences of COVID-19 disease. In the present study, we performed a targeted metabolomic approach using liquid chromatography coupled with high resolution chromatography (LC-MS) on exhaled breath condensate (EBC) collected from hospitalized COVID-19 patients (COVID+) and negative controls, both non-hospitalized and hospitalized for other reasons (COVID-). We were able to noninvasively identify and quantify inflammatory oxylipin shifts and dysregulation that may ultimately be used to monitor COVID-19 disease progression or severity and response to therapy. We also expected EBC-based biochemical oxylipin changes associated with COVID-19 host response to infection. The results indicated ten targeted oxylipins showing significative differences between SAR-CoV-2 infected EBC samples and negative control subjects. These compounds were prostaglandins A2 and D2, LXA4, 5-HETE, 12-HETE, 15-HETE, 5-HEPE, 9-HODE, 13-oxoODE and 19(20)-EpDPA, which are associated with specific pathways (i.e. P450, COX, 15-LOX) related to inflammatory and oxidative stress processes. Moreover, all these compounds were up-regulated by COVID+, meaning their concentrations were higher in subjects with SAR-CoV-2 infection. Given that many COVID-19 symptoms are inflammatory in nature, this is interesting insight into the pathophysiology of the disease. Breath monitoring of these and other EBC metabolites presents an interesting opportunity to monitor key indicators of disease progression and severity.
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Affiliation(s)
- Eva Borras
- Mechanical and Aerospace Engineering, One Shields Avenue, University of California, Davis, Davis, California, USA
- UC Davis Lung Center, University of California Davis, CA
- These authors contributed equally: Eva Borras, Mitchell M. McCartney
| | - Mitchell M. McCartney
- Mechanical and Aerospace Engineering, One Shields Avenue, University of California, Davis, Davis, California, USA
- UC Davis Lung Center, University of California Davis, CA
- VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655, USA
- These authors contributed equally: Eva Borras, Mitchell M. McCartney
| | - Dante E. Rojas
- Mechanical and Aerospace Engineering, One Shields Avenue, University of California, Davis, Davis, California, USA
- UC Davis Lung Center, University of California Davis, CA
| | - Tristan L Hicks
- Mechanical and Aerospace Engineering, One Shields Avenue, University of California, Davis, Davis, California, USA
- UC Davis Lung Center, University of California Davis, CA
| | - Nam K Tran
- UC Davis Lung Center, University of California Davis, CA
- Department of Pathology and Laboratory Medicine, UC Davis, Sacramento CA, USA
| | - Tina Tham
- UC Davis Lung Center, University of California Davis, CA
- Department of Internal Medicine, 4150 V Street, Suite 3400, University of California, Davis, Sacramento, CA 95817, USA
| | - Maya M Juarez
- UC Davis Lung Center, University of California Davis, CA
- Department of Internal Medicine, 4150 V Street, Suite 3400, University of California, Davis, Sacramento, CA 95817, USA
| | - Lisa Franzi
- UC Davis Lung Center, University of California Davis, CA
- Department of Internal Medicine, 4150 V Street, Suite 3400, University of California, Davis, Sacramento, CA 95817, USA
| | - Richart W. Harper
- UC Davis Lung Center, University of California Davis, CA
- VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655, USA
- Department of Internal Medicine, 4150 V Street, Suite 3400, University of California, Davis, Sacramento, CA 95817, USA
| | - Cristina E. Davis
- Mechanical and Aerospace Engineering, One Shields Avenue, University of California, Davis, Davis, California, USA
- UC Davis Lung Center, University of California Davis, CA
- VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655, USA
| | - Nicholas J. Kenyon
- UC Davis Lung Center, University of California Davis, CA
- VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655, USA
- Department of Pathology and Laboratory Medicine, UC Davis, Sacramento CA, USA
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A novel temperature-controlled open source microcontroller based sampler for collection of exhaled breath condensate in point-of-care diagnostics. Talanta 2022; 237:122984. [PMID: 34736704 DOI: 10.1016/j.talanta.2021.122984] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/21/2022]
Abstract
Exhaled breath condensate (EBC) is an attractive, non-invasive sample for clinical diagnostics. During EBC collection, its composition is influenced by the collection temperature, a factor that is often not thoroughly monitored and controlled. In this study, we assembled a novel, simple, portable, and inexpensive device for EBC collection, able to maintain a stable temperature at any value between -7 °C and +12 °C. The temperature was controlled using a microcontroller and a thermoelectric cooler that was employed to cool the aluminum block holding the glass tube or the polypropylene syringe. The performance of the novel sampler was compared with the passively cooled RTube™ and a simple EBC sampler, in which the temperature was steadily increasing during sampling. The developed sampler was able to maintain a stable temperature within ±1 °C. To investigate the influence of different sampling temperatures (i.e., +12, -7, -80 °C) on the analyte content in EBC, inorganic ions and organic acids were analyzed by capillary electrophoresis with a capacitively coupled contactless conductivity detector. It was shown that the concentration of metabolites decreased significantly with decreasing temperature. The portability and the ability to keep a stable temperature during EBC sampling makes the developed sampler suitable for point-of-care diagnostics.
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Zakharova N, Kozyr A, Ryabokon AM, Indeykina M, Strelnikova P, Bugrova A, Nikolaev EN, Kononikhin AS. Mass spectrometry based proteome profiling of the exhaled breath condensate for lung cancer biomarkers search. Expert Rev Proteomics 2021; 18:637-642. [PMID: 34477466 DOI: 10.1080/14789450.2021.1976150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Lung cancer remains the most prevalent cause of cancer mortality worldwide mainly due to insufficient availability of early screening methods for wide-scale application. Exhaled breath condensate (EBC) is currently considered as one of the promising targets for early screening and is particularly attractive due to its absolutely noninvasive collection and possibility for long-term frozen storage. EBC proteome analysis can provide valuable information about the (patho)physiological changes in the respiratory system and may help to identify in time a high risk of lung cancer. Mass spectrometry (MS) profiling of EBC proteome seems to have no alternative in obtaining the most extensive data and characteristic marker panels for screening. AREAS COVERED This special report summarizes the data of several proteomic studies of EBC in normal and lung cancer (from 2012 to 2021, PubMed), focuses on the possible reasons for the significant discrepancy in the results, and discusses some aspects for special attention in further studies. EXPERT OPINION The significant discrepancy in the results of various studies primarily highlights the need to create standardized protocols for the collection and preparation of EBC for proteomic analysis. The application of quantitative and targeted LC-MS/MS based approaches seems to be the most promising in further EBC proteomic studies.
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Affiliation(s)
- Natalia Zakharova
- Laboratory of mass spectrometry of biomacromolecules Emanuel Institute for Biochemical Physics, Russian Academy of Science Moscow
| | - Anna Kozyr
- Laboratory of mass spectrometry of biomacromolecules Emanuel Institute for Biochemical Physics, Russian Academy of Science Moscow
| | - Anna M Ryabokon
- Laboratory of mass spectrometry of biomacromolecules Emanuel Institute for Biochemical Physics, Russian Academy of Science Moscow.,Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Maria Indeykina
- Laboratory of mass spectrometry of biomacromolecules Emanuel Institute for Biochemical Physics, Russian Academy of Science Moscow.,Laboratory of ion and molecular physics, V.l. Talrose Institute for Energy Problems of Chemical Physics, N.n. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Polina Strelnikova
- Laboratory of mass spectrometry of biomacromolecules Emanuel Institute for Biochemical Physics, Russian Academy of Science Moscow
| | - Anna Bugrova
- Laboratory of mass spectrometry of biomacromolecules Emanuel Institute for Biochemical Physics, Russian Academy of Science Moscow
| | - Eugene N Nikolaev
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, Skolkovo, Russia
| | - Alexey S Kononikhin
- Laboratory of mass spectrometry of biomacromolecules Emanuel Institute for Biochemical Physics, Russian Academy of Science Moscow.,Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, Skolkovo, Russia
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Borras E, Schrumpf L, Stephens N, Weimer BC, Davis CE, Schelegle ES. Novel LC-MS-TOF method to detect and quantify ascorbic and uric acid simultaneously in different biological matrices. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1168:122588. [PMID: 33690092 DOI: 10.1016/j.jchromb.2021.122588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/03/2021] [Accepted: 02/06/2021] [Indexed: 12/29/2022]
Abstract
Ascorbic acid (AA) and uric acid (UA) are known as two of the major antioxidants in biological fluids. We report a novel liquid chromatography-mass spectrometry with time-of-flight (LC-MS-TOF) method for the simultaneous quantification of ascorbic and uric acids using MPA, antioxidant solution and acetonitrile as a protein precipitating agent. Both compounds were separated from interferences using a reverse phase C18 column with water and acetonitrile gradient elution (both with formic acid) and identified and quantified by MS in the negative ESI mode. Isotope labeled internal standards were also added to ensure the accuracy of the measures. The method was validated for exhaled breath condensate (EBC), nasal lavage (NL) and plasma samples by assessing selectivity, linearity, accuracy and precision, recovery and matrix effect and stability. Sample volumes below 250 µL were used and linear ranges were determined between 1 - 25 and 1 - 40 µg/mL for ascorbic and uric acid, respectively, for plasma samples, and between 0.05 - 5 (AA) and 0.05 - 7.5 (UA) µg/mL for EBC and NL samples. The new method was successfully applied to real samples from subjects that provided each of the studied matrices. Results showed higher amounts determined in plasma samples, with similar profiles for AA and UA in EBC and NL but at much lower concentrations.
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Affiliation(s)
- Eva Borras
- Mechanical and Aerospace Engineering, University of California, Davis, Davis, CA, USA
| | - Leah Schrumpf
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Noelle Stephens
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Bart C Weimer
- Department of Population Health and Reproduction, Veterinary Medicine School, University of California, Davis, Davis, CA, USA
| | - Cristina E Davis
- Mechanical and Aerospace Engineering, University of California, Davis, Davis, CA, USA; VA Northern California Health Care System, 10535 Hospital Way, Mather, CA 95655, USA
| | - Edward S Schelegle
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA.
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Kononikhin AS, Zakharova NV, Yusupov AE, Ryabokon AM, Fedorchenko KY, Indeykina MI, Bugrova AE, Spassky AI, Popov IA, Varfolomeev SD, Nikolaev EN. Study of the Molecular Composition of Exhaled Breath Condensate by High-Resolution Mass Spectrometry. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s1990793119060216] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Schmidt AJ, Borras E, Nguyen AP, Yeap D, Kenyon NJ, Davis CE. Portable exhaled breath condensate metabolomics for daily monitoring of adolescent asthma. J Breath Res 2020; 14:026001. [PMID: 31344695 DOI: 10.1088/1752-7163/ab35b5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Alexander J Schmidt
- Department of Mechanical and Aerospace Engineering, One Shields Avenue, University of California Davis, Davis, CA 95616, United States of America
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