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Houngkamhang N, Phasukkit P. Portable Deep Learning-Driven Ion-Sensitive Field-Effect Transistor Scheme for Measurement of Carbaryl Pesticide. SENSORS 2022; 22:s22093543. [PMID: 35591232 PMCID: PMC9101106 DOI: 10.3390/s22093543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 01/27/2023]
Abstract
This research proposes a multiple-input deep learning-driven ion-sensitive field-effect transistor (ISFET) scheme to predict the concentrations of carbaryl pesticide. In the study, the carbaryl concentrations are varied between 1 × 10−7–1 × 10−3 M, and the temperatures of solutions between 20–35 °C. To validate the multiple-input deep learning regression model, the proposed ISFET scheme is deployed onsite (a field test) to measure pesticide concentrations in the carbaryl-spiked vegetable extract. The advantage of this research lies in the use of a deep learning algorithm with an ISFET sensor to effectively predict the pesticide concentrations, in addition to improving the prediction accuracy. The results demonstrate the very high predictive ability of the proposed ISFET scheme, given an MSE, MAE, and R2 of 0.007%, 0.016%, and 0.992, respectively. The proposed multiple-input deep learning regression model with signal compensation is applicable to a wide range of solution temperatures which is convenient for onsite measurement. Essentially, the proposed multiple-input deep learning regression model could be adopted as an effective alternative to the conventional statistics-based regression to predict pesticide concentrations.
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Affiliation(s)
- Nongluck Houngkamhang
- College of Materials Innovation and Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand;
| | - Pattarapong Phasukkit
- School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
- Correspondence:
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Thongkum W, Yasamut U, Chupradit K, Sakkhachornphop S, Wipasa J, Sornsuwan K, Juntit OA, Pornprasit R, Thongkamwitoon W, Chaichanan J, Khaoplab J, Chanpradab C, Kasinrerk W, Tayapiwatana C. Latticed Gold Nanoparticle Conjugation via Monomeric Streptavidin in Lateral Flow Assay for Detection of Autoantibody to Interferon-Gamma. Diagnostics (Basel) 2021; 11:diagnostics11060987. [PMID: 34072539 PMCID: PMC8229537 DOI: 10.3390/diagnostics11060987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 11/17/2022] Open
Abstract
Adult-onset immunodeficiency syndrome (AOID) patients with autoantibodies (autoAbs) against interferon-gamma (IFN-γ) generally suffer from recurrent and recalcitrant disseminated non-tuberculous mycobacterial diseases. Since the early stages of AOID do not present specific symptoms, diagnosis and treatment of the condition are not practical. A simplified diagnostic method for differentiating AOID from other immunodeficiencies, such as HIV infection, was created. Anti-IFN-γ is generally identified using enzyme-linked immunosorbent assay (ELISA), which involves an instrument and a cumbersome process. Recombinant IFN-γ indirectly conjugated to colloidal gold was used in the modified immunochromatographic (IC) strips. The biotinylated-IFN-γ was incorporated with colloidal-gold-labeled 6HIS-maltose binding protein-monomeric streptavidin (6HISMBP-mSA) and absorbed at the conjugate pad. The efficacy of the IC strip upon applying an anti-IFN-γ autoAb cut-off ELISA titer of 2500, the sensitivity and specificity were 84% and 90.24%, respectively. When a cut-off ELISA titer of 500 was applied, the sensitivity and specificity were 73.52% and 100%, respectively.
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Affiliation(s)
- Weeraya Thongkum
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (W.T.); (U.Y.); (K.C.); (K.S.); (O.-a.J.); (W.K.)
- Center of Biomolecular Therapy and Diagnostic, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
- Center of Innovative Immunodiagnostic Development, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Umpa Yasamut
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (W.T.); (U.Y.); (K.C.); (K.S.); (O.-a.J.); (W.K.)
- Center of Biomolecular Therapy and Diagnostic, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
- Center of Innovative Immunodiagnostic Development, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Koollawat Chupradit
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (W.T.); (U.Y.); (K.C.); (K.S.); (O.-a.J.); (W.K.)
- Center of Biomolecular Therapy and Diagnostic, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Supachai Sakkhachornphop
- Center of Biomolecular Therapy and Diagnostic, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Jiraprapa Wipasa
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Kanokporn Sornsuwan
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (W.T.); (U.Y.); (K.C.); (K.S.); (O.-a.J.); (W.K.)
- Center of Biomolecular Therapy and Diagnostic, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - On-anong Juntit
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (W.T.); (U.Y.); (K.C.); (K.S.); (O.-a.J.); (W.K.)
- Center of Biomolecular Therapy and Diagnostic, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Rawiwan Pornprasit
- Bio Innovation Building, Mahidol University, Nakhon Pathom 73170, Thailand; (R.P.); (W.T.); (J.C.); (J.K.); (C.C.)
| | - Wanwisa Thongkamwitoon
- Bio Innovation Building, Mahidol University, Nakhon Pathom 73170, Thailand; (R.P.); (W.T.); (J.C.); (J.K.); (C.C.)
| | - Jirapan Chaichanan
- Bio Innovation Building, Mahidol University, Nakhon Pathom 73170, Thailand; (R.P.); (W.T.); (J.C.); (J.K.); (C.C.)
| | - Jaruwan Khaoplab
- Bio Innovation Building, Mahidol University, Nakhon Pathom 73170, Thailand; (R.P.); (W.T.); (J.C.); (J.K.); (C.C.)
| | - Chonnikarn Chanpradab
- Bio Innovation Building, Mahidol University, Nakhon Pathom 73170, Thailand; (R.P.); (W.T.); (J.C.); (J.K.); (C.C.)
| | - Watchara Kasinrerk
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (W.T.); (U.Y.); (K.C.); (K.S.); (O.-a.J.); (W.K.)
- Center of Innovative Immunodiagnostic Development, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chatchai Tayapiwatana
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (W.T.); (U.Y.); (K.C.); (K.S.); (O.-a.J.); (W.K.)
- Center of Biomolecular Therapy and Diagnostic, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
- Center of Innovative Immunodiagnostic Development, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: ; Tel.: +66-81-8845141
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Development of an ImmunoFET for Analysis of Tumour Necrosis Factor-α in Artificial Saliva: Application for Heart Failure Monitoring. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9020026] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Assessing tumour necrosis factor-α (TNF-α) levels in the human body has become an essential tool to recognize heart failure (HF). In this work, label-free, rapid, easy to use ImmunoFET based on an ion-sensitive field effect transistor (ISFET) was developed for the detection of TNF-α protein. Monoclonal anti-TNF-α antibodies (anti-TNF-α mAb) were immobilized on an ISFET gate made of silicon nitride (Si3N4) after salinization with 11-(triethoxysilyl) undecanal (TESUD). The obtained ISFET functionalized with the mAbs (ImmunoFET) was used to detect TNF-α protein in both phosphate buffer saline (PBS) and artificial saliva (AS). The change in the threshold voltage of the gate (∆VT) showed approximately linear dependency on the concentration of the antigens in the range 5–20 pg/mL for both matrixes. The cross-selectivity study showed that the developed ImmunoFET demonstrated to be selective towards TNF-α, when compared to other HF biomarkers such as N-terminal pro-brain natriuretic peptide (NT-proBNP), interleukin-10 (IL-10), and cortisol, even if further experiments have to be carried out for decreasing possible unspecific absorption phenomena. To the best of our knowledge, this is the first ImmunoFET that has been developed based on Si3N4 for TNF-α detection in AS by electrical measurement.
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Wint NY, Han KK, Yamprayoonswat W, Ruangsuj P, Mangmool S, Promptmas C, Yasawong M. A Novel Nucleic Lateral Flow Assay for Screening phaR-Containing Bacillus spp. J Microbiol Biotechnol 2021; 31:123-129. [PMID: 31650770 PMCID: PMC9705695 DOI: 10.4014/jmb.1907.07045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 10/24/2019] [Indexed: 12/15/2022]
Abstract
Polyhydroxyalkanoate (PHA) synthase is a key enzyme for PHA production in microorganisms. The class IV PHA synthase is composed of two subunits: PhaC and PhaR. The PhaR subunit, which encodes the phaR gene, is only present in class IV PHA synthases. Therefore, the phaR gene is used as a biomarker for bacteria that contain a class IV PHA synthase, such as some Bacillus spp. The phaR gene was developed to screen phaR-containing Bacillus spp. The phaR screening method involved two steps: phaR gene amplification by PCR and phaR amplicon detection using a DNA lateral flow assay. The screening method has a high specificity for phaR-containing Bacillus spp. The lowest amount of genomic DNA of B. thuringiensis ATCC 10792 that the phaR screening method could detect was 10 pg. This novel screening method improves the specificity and sensitivity of phaR gene screening and reduces the time and cost of the screening process, which could enhance the opportunity to discover good candidate PHA producers. Nevertheless, the screening method can certainly be used as a tool to screen phaR-containing Bacillus spp. from environmental samples.
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Affiliation(s)
- Nay Yee Wint
- Department of Biochemistry, Faculty of Pharmacy, Mahidol University, Bangkok 0400, Thailand
| | - Khine Kyi Han
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | | | - Pattarawan Ruangsuj
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Supachoke Mangmool
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Chamras Promptmas
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Phathom 73170, Thailand
| | - Montri Yasawong
- Department of Biochemistry, Faculty of Pharmacy, Mahidol University, Bangkok 0400, Thailand,Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand,Center of Excellence on Environmental Health and Toxicology (EHT), Office of Higher Education, Bangkok 10400, Thailand,Corresponding author Phone: +66-2-554-1900 Fax: +66-2-554-1901 E-mail:
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