1
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Asawakarn S, Pimpin A, Jeamsaksiri W, Sripumkhai W, Jitsamai W, Taweethavonsawat P, Piyaviriyakul P. Application of a novel rectangular filtering microfluidic device for microfilarial detection. Front Vet Sci 2023; 9:1048131. [PMID: 36686171 PMCID: PMC9853162 DOI: 10.3389/fvets.2022.1048131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/12/2022] [Indexed: 01/08/2023] Open
Abstract
The rectangular filtering microfluidic chip was invented using microfluidics device fabrication technology and can separate living microfilariae from blood samples without a syringe pump. The diagnostic results are highly effective. The device is based on the principle of separating millions of blood cells from microfilariae using a rectangular filter structure. It disperses fluid evenly into the flow-passage channel, and its rectangular filter structure is the key to success in reducing the pressure and separating blood cells from microfilariae effectively. The flow rate and blood cell concentration were optimized in our study. The chip is intended to be a point-of-care device that can reduce the use of superfluous instrumentation in the field. The technology is designed to be rapid, accurate, and easy-to-use for all users, especially those in remote areas.
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Affiliation(s)
- Sariya Asawakarn
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand,Biomarkers in Animal Parasitology Research Group, Chulalongkorn University, Bangkok, Thailand
| | - Alongkorn Pimpin
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand,Micro/Nano Electromechanical Integrated Device Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | | | | | - Wanarit Jitsamai
- Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Piyanan Taweethavonsawat
- Biomarkers in Animal Parasitology Research Group, Chulalongkorn University, Bangkok, Thailand,Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Prapruddee Piyaviriyakul
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand,*Correspondence: Prapruddee Piyaviriyakul ✉
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2
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Khemthongcharoen N, Uawithya P, Yookong N, Chanasakulniyom M, Jeamsaksiri W, Sripumkhai W, Pattamang P, Juntasaro E, Kamnerdsook A, Houngkamhang N, Promptmas C. A simple and high -performance immobilization technique of membrane protein from crude cell lysate sample for a membrane-based immunoassay application. J Immunoassay Immunochem 2023; 44:76-89. [PMID: 36318041 DOI: 10.1080/15321819.2022.2137420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Membrane proteins are difficult to be extracted and to be coated on the substrate of the immunoassay reaction chamber because of their hydrophobicity. Traditional method to prepare membrane protein sample requires many steps of protein extraction and purification that may lead to protein structure deformation and protein dysfunction. This work proposes a simple technique to prepare and immobilize the membrane protein suspended in an unprocessed crude cell lysate sample. Membrane fractions in crude cell lysate were incorporated with the large unilamellar vesicle (LUV) that was mainly composed of POPC (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine) before coating in the polystyrene plate by passive adsorption technique. Immunofluorescence staining and the Enzyme-Linked Immunosorbent Assay (ELISA) examination of a strictly conformation-dependent integral membrane protein, Myelin Oligodendrocyte Glycoprotein (MOG), demonstrate that LUV incorporated cell lysate sample obviously promotes MOG protein immobilization in the microplate well. With LUV incorporation, the dose-response curve of the MOG transfected cell lysate coating plate can be 2-9 times differentiated from that of the untransfected cell lysate coating plate. The LUV incorporated MOG transfected cell lysate can be efficiently coated in the microplate without carbonate/bicarbonate coating buffer assistance.
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Affiliation(s)
- Numfon Khemthongcharoen
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand.,NECTEC, National Science and Technology Development Agency (NSTDA), Pathumthani, Thailand
| | - Panapat Uawithya
- Department of Physiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Nutthapon Yookong
- Department of Physiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Mayuree Chanasakulniyom
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand.,Center for Standardization and Product Validation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Wutthinan Jeamsaksiri
- Thai Microelectronics Center (TMEC), NECTEC, National Science and Technology Development Agency (NSTDA), Chachoengsao, Thailand
| | - Witsaroot Sripumkhai
- Thai Microelectronics Center (TMEC), NECTEC, National Science and Technology Development Agency (NSTDA), Chachoengsao, Thailand
| | - Pattaraluck Pattamang
- Thai Microelectronics Center (TMEC), NECTEC, National Science and Technology Development Agency (NSTDA), Chachoengsao, Thailand
| | - Ekachai Juntasaro
- Mechanical Engineering Simulation and Design Group, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok, Thailand
| | - Ampol Kamnerdsook
- Thai Microelectronics Center (TMEC), NECTEC, National Science and Technology Development Agency (NSTDA), Chachoengsao, Thailand.,Mechanical Engineering Simulation and Design Group, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok, Thailand
| | - Nongluck Houngkamhang
- College of Materials Innovation and Technology, King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand
| | - Chamras Promptmas
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
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3
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Borwornpiyawat P, Juntasaro E, Aueviriyavit S, Juntasaro V, Sripumkhai W, Pattamang P, Meananeatra R, Kulthong K, Wongwanakul R, Khemthongcharoen N, Atthi N, Jeamsaksiri W. Effects of Porous Size and Membrane Pattern on Shear Stress Characteristic in Gut-on-a-Chip with Peristalsis Motion. Micromachines (Basel) 2022; 14:22. [PMID: 36677084 PMCID: PMC9865814 DOI: 10.3390/mi14010022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Dynamic gut-on-a-chip platform allows better recreation of the intestinal environment in vitro compared to the traditional static cell culture. However, the underlying mechanism is still not fully discovered. In this study, the shear stress behavior in a gut-on-a-chip device with porous membrane subjected to peristalsis motion is numerically investigated using CFD simulation for three different pore sizes and two pattern layouts. The results reveal that, in the stationary microchannel, the average shear stress on the porous membrane is approximately 15% greater than that of the flat membrane, regardless of the pore size. However, when subjected to cyclic deformation, the porous membrane with smaller pore size experiences stronger variation of shear stress which is ±5.61%, ±10.12% and ±34.45% from its average for the pore diameters of 10 μm, 5 μm and 1 μm, respectively. The shear stress distribution is more consistent in case of the staggered pattern layout while the in-line pattern layout allows for a 32% wider range of shear stress at the identical pore size during a cyclic deformation. These changes in the shear stress caused by peristalsis motion, porous size and membrane pattern could be the key factors that promote cell differentiation in the deforming gut-on-a-chip model.
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Affiliation(s)
- Pannasit Borwornpiyawat
- Mechanical Engineering Simulation and Design Group, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, Thailand
| | - Ekachai Juntasaro
- Mechanical Engineering Simulation and Design Group, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, Thailand
| | - Sasitorn Aueviriyavit
- Nano Safety and Bioactivity Research Team, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Varangrat Juntasaro
- Department of Mechanical Engineering, Kasetsart University, Bangkok 10900, Thailand
| | - Witsaroot Sripumkhai
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Chacheongsao 24000, Thailand
| | - Pattaraluck Pattamang
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Chacheongsao 24000, Thailand
| | - Rattanawan Meananeatra
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Chacheongsao 24000, Thailand
| | - Kornphimol Kulthong
- Nano Safety and Bioactivity Research Team, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Ratjika Wongwanakul
- Nano Safety and Bioactivity Research Team, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Numfon Khemthongcharoen
- National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Nithi Atthi
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Chacheongsao 24000, Thailand
| | - Wutthinan Jeamsaksiri
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Chacheongsao 24000, Thailand
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4
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Khemthongcharoen N, Uawithya P, Yookong N, Chanasakulniyom M, Jeamsaksiri W, Sripumkhai W, Pattamang P, Juntasaro E, Houngkamhang N, Thienthong T, Promptmas C. Microfluidic system evaluation for the semi-automatic detection of MOG-IgG in serum samples. Sensing and Bio-Sensing Research 2021. [DOI: 10.1016/j.sbsr.2021.100458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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5
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Tantraviwat D, Ngamyingyoud M, Sripumkhai W, Pattamang P, Rujijanagul G, Inceesungvorn B. Tuning the Dielectric Constant and Surface Engineering of a BaTiO 3/Porous PDMS Composite Film for Enhanced Triboelectric Nanogenerator Output Performance. ACS Omega 2021; 6:29765-29773. [PMID: 34778649 PMCID: PMC8582040 DOI: 10.1021/acsomega.1c04222] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
In this work, synergistic effects derived from surface engineering and dielectric property tuning were exploited to enhance the output performance of a triboelectric nanogenerator (TENG) based on an inorganic/porous PDMS composite in a contact-separation mode. BaTiO3 (BT)/porous PDMS films with different BT weight ratios were fabricated and evaluated for triboelectric nanogenerator (TENG) application. Maximum output signals of ca. 2500 V, 150 μA, and a power density of 1.2 W m-2 are achieved from the TENG containing 7 wt % BT, which is the best compromise in terms of surface roughness, dielectric constant, and surface contact area as evidenced by SEM and AFM studies. These electrical signals are 2 times higher than those observed for the TENG without BT. The 7BT/porous PDMS-based TENG also shows high stability without a significant loss of output voltage for at least 24 000 cycles. With this optimized TENG, more than 350 LEDs are lit up and a wireless transmitter is operated within 9 s. This work not only shows the promoting effects from porous surfaces and an optimized dielectric constant but also offers a rapid and template/waste-free fabrication process for porous PDMS composite films toward large-scale production.
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Affiliation(s)
- Doldet Tantraviwat
- Department
of Electrical Engineering, Faculty of Engineering and Center of Excellence
in Materials Science and Technology and Materials Science Research
Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Mutita Ngamyingyoud
- Department
of Electrical Engineering, Faculty of Engineering and Center of Excellence
in Materials Science and Technology and Materials Science Research
Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Witsaroot Sripumkhai
- Thai
Microelectronics Center (TMEC), National
Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand
| | - Pattaraluck Pattamang
- Thai
Microelectronics Center (TMEC), National
Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand
| | - Gobwute Rujijanagul
- Department
of Electrical Engineering, Faculty of Engineering and Center of Excellence
in Materials Science and Technology and Materials Science Research
Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Department
of Physics and Materials Science, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Burapat Inceesungvorn
- Department
of Electrical Engineering, Faculty of Engineering and Center of Excellence
in Materials Science and Technology and Materials Science Research
Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Department
of Chemistry, Faculty of Science, and Center of Excellence for Innovation
in Chemistry (PERCH-CIC), Chiang Mai University, Chiang Mai 50200, Thailand
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6
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Kamnerdsook A, Juntasaro E, Khemthongcharoen N, Chanasakulniyom M, Sripumkhai W, Pattamang P, Promptmas C, Atthi N, Jeamsaksiri W. Formation of double emulsion micro-droplets in a microfluidic device using a partially hydrophilic-hydrophobic surface. RSC Adv 2021; 11:35653-35662. [PMID: 35493190 PMCID: PMC9043265 DOI: 10.1039/d1ra06887c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/26/2021] [Indexed: 01/03/2023] Open
Abstract
The objective of this paper is to propose a surface modification method for preparing PDMS microfluidic devices with partially hydrophilic–hydrophobic surfaces for generating double emulsion droplets. The device is designed to be easy to use without any complicated preparation process and also to achieve high droplet encapsulation efficiency compared to conventional devices. The key component of this preparation process is the permanent chemical coating for which the Pluronic surfactant is added into the bulk PDMS. The addition of Pluronic surfactant can modify the surface property of PDMS from a fully hydrophobic surface to a partially hydrophilic–hydrophobic surface whose property can be either hydrophilic or hydrophobic depending on the air- or water-treatment condition. In order to control the surface wettability, this microfluidic device with the partially hydrophilic–hydrophobic surface undergoes water treatment by injecting deionized water into the specific microchannels where their surface property changes to hydrophilic. This microfluidic device is tested by generating monodisperse water-in-oil-in-water (w/o/w) double emulsion micro-droplets for which the maximum droplet encapsulation efficiency of 92.4% is achieved with the average outer and inner diameters of 75.0 and 57.7 μm, respectively. (a) Droplet encapsulation efficiency & inner and outer diameters of water-in-oil-in-water droplets at various frequency ratios and flow rate ratios and (b) Images of water-in-oil-in-water droplets over a frequency-ratio range of fr = 0.73–1.30![]()
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Affiliation(s)
- Ampol Kamnerdsook
- Mechanical Engineering Simulation and Design Group, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok Bangkok 10800 Thailand
| | - Ekachai Juntasaro
- Mechanical Engineering Simulation and Design Group, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok Bangkok 10800 Thailand
| | - Numfon Khemthongcharoen
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University Nakhon Pathom 73170 Thailand
| | - Mayuree Chanasakulniyom
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University Nakhon Pathom 73170 Thailand
| | - Witsaroot Sripumkhai
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center, National Science and Technology Development Agency Chachoengsao 24000 Thailand
| | - Pattaraluck Pattamang
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center, National Science and Technology Development Agency Chachoengsao 24000 Thailand
| | - Chamras Promptmas
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University Nakhon Pathom 73170 Thailand
| | - Nithi Atthi
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center, National Science and Technology Development Agency Chachoengsao 24000 Thailand
| | - Wutthinan Jeamsaksiri
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center, National Science and Technology Development Agency Chachoengsao 24000 Thailand
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7
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Phuakrod A, Sripumkhai W, Jeamsaksiri W, Pattamang P, Loymek S, Brindley PJ, Sarasombath PT, Wongkamchai S. A miniPCR-Duplex Lateral Flow Dipstick Platform for Rapid and Visual Diagnosis of Lymphatic Filariae Infection. Diagnostics (Basel) 2021; 11:diagnostics11101855. [PMID: 34679553 PMCID: PMC8534866 DOI: 10.3390/diagnostics11101855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/18/2021] [Accepted: 09/29/2021] [Indexed: 11/16/2022] Open
Abstract
Lymphatic filariasis (LF) is a neglected major tropical disease that is a leading cause of permanent and long-term disability worldwide. Significant progress made by the Global Programme to Eliminate Lymphatic Filariasis (GPELF) has led to a substantial decrease in the levels of infection. In this limitation, DNA detection of lymphatic filariae could be useful due to it capable of detecting low level of the parasites. In the present study, we developed a diagnostic assay that combines a miniPCR with a duplex lateral flow dipstick (DLFD). The PCR primers were designed based on the HhaI and SspI repetitive noncoding DNA sequences of Brugia malayi and Wuchereria bancrofti, respectively. The limits of detection and crossreactivity of the assay were evaluated. In addition, blood samples were provided by Thais living in a brugian filariasis endemic area. The miniPCR-DLFD assay exhibited a detection limit of 2 and 4 mf per milliliter (mL) of blood for B. malayi as well as W. bancrofti, respectively, and crossamplification was not observed with 11 other parasites. The result obtained from the present study was in accordance with the thick blood smear staining for the known cases. Thus, a miniPCR-DLFD is an alternative tool for the diagnosis of LF in point-of-collection settings with a modest cost (~USD 5) per sample.
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Affiliation(s)
- Achinya Phuakrod
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand;
| | - Witsaroot Sripumkhai
- Thai Microelectronic Center, National Electronics and Computer Technology Center, Thailand Science Park, Pathum Thani 12110, Thailand; (W.S.); (W.J.); (P.P.)
| | - Wutthinan Jeamsaksiri
- Thai Microelectronic Center, National Electronics and Computer Technology Center, Thailand Science Park, Pathum Thani 12110, Thailand; (W.S.); (W.J.); (P.P.)
| | - Pattaraluck Pattamang
- Thai Microelectronic Center, National Electronics and Computer Technology Center, Thailand Science Park, Pathum Thani 12110, Thailand; (W.S.); (W.J.); (P.P.)
| | - Sumat Loymek
- Office of Disease Prevention and Control, Region 12, Department of Disease Control, The Ministry of Public Health, Songkhla 9000, Thailand;
| | - Paul J. Brindley
- Immunology & Tropical Medicine & Research Center for Neglected Diseases of Poverty, Department of Microbiology, School of Medicine & Health Sciences, George Washington University, Washington, DC 20037, USA;
| | - Patsharaporn T. Sarasombath
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
- Correspondence: (P.T.S.); (S.W.); Tel.: +66-2-419-6468 (P.T.S. & S.W.); Fax: +66-2-419-6470 (P.T.S. & S.W.)
| | - Sirichit Wongkamchai
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
- Correspondence: (P.T.S.); (S.W.); Tel.: +66-2-419-6468 (P.T.S. & S.W.); Fax: +66-2-419-6470 (P.T.S. & S.W.)
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8
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Loymek S, Phuakrod A, Zaelai K, Sripumkhai W, Vongjaroensanti P, Wongkamchai S. Investigation on the Prevalence of Canine Microfilaremia in Thailand Using a Novel Microfluidic Device in Combination with Real-Time PCR. Vet Sci 2021; 8:vetsci8030039. [PMID: 33671040 PMCID: PMC7997456 DOI: 10.3390/vetsci8030039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 11/25/2022] Open
Abstract
We conducted a survey of canine microfilaraemia in 768 dogs in Chanthaburi, Samut Sakhon, and Narathiwat provinces of Thailand using a novel semi-automated, microfluidic device that is easy and rapid to perform. Microfilariae species were identified using High Resolution Melting real-time PCR (HRM real-time PCR). The prevalence of canine microfilaremia was 16.2% (45/278) in Chanthaburi and 5.5% (12/217) in Samut Sakhon. The prevalence of canine microfilaremia in Narathiwat was 22.7% (67/273). Brugia pahangi and Dirofilaria immitis were the predominant species of filariae found in the infected dogs from Chanthaburi and Narathiwat, respectively. The low prevalence of canine microfilaremia of Samut Sakhon may reflect the success of the Soi Dog foundation’s efforts and the establishment of veterinary control programs. An effective disease control and prevention strategies is needed in Chanthaburi and Narathiwat to reduce the risks of zoonotic transmission of the parasites. An appropriate drug treatment should be given to infected dogs and prophylactic drugs are suggested to be given to dogs age ≤1-year-old to prevent filarial infection. The novel microfluidic device could be implemented for surveillance of filariae infection in other animals.
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Affiliation(s)
- Sumas Loymek
- Office of Disease Prevention and Control Region 12 Songkhla, Department of Disease Control, Ministry of Public Health, Songkhla 90000, Thailand;
| | - Achinya Phuakrod
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand;
| | - Kati Zaelai
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand; (K.Z.); (P.V.)
| | - Witsaroot Sripumkhai
- Thai Microelectronic Center, National Electronics and Computer Technology Center, Thailand Science Park, Pathumthani 12120, Thailand;
| | - Prapakorn Vongjaroensanti
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand; (K.Z.); (P.V.)
| | - Sirichit Wongkamchai
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand; (K.Z.); (P.V.)
- Correspondence:
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9
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Atthi N, Dielen M, Sripumkhai W, Pattamang P, Meananeatra R, Saengdee P, Thongsook O, Ranron N, Pankong K, Uahchinkul W, Supadech J, Klunngien N, Jeamsaksiri W, Veldhuizen P, ter Meulen JM. Fabrication of High Aspect Ratio Micro-Structures with Superhydrophobic and Oleophobic Properties by Using Large-Area Roll-to-Plate Nanoimprint Lithography. Nanomaterials (Basel) 2021; 11:nano11020339. [PMID: 33572813 PMCID: PMC7912431 DOI: 10.3390/nano11020339] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 12/17/2022]
Abstract
Bio-inspired surfaces with superamphiphobic properties are well known as effective candidates for antifouling technology. However, the limitation of large-area mastering, patterning and pattern collapsing upon physical contact are the bottleneck for practical utilization in marine and medical applications. In this study, a roll-to-plate nanoimprint lithography (R2P NIL) process using Morphotonics’ automated Portis NIL600 tool was used to replicate high aspect ratio (5.0) micro-structures via reusable intermediate flexible stamps that were fabricated from silicon master molds. Two types of Morphotonics’ in-house UV-curable resins were used to replicate a micro-pillar (PIL) and circular rings with eight stripe supporters (C-RESS) micro-structure onto polycarbonate (PC) and polyethylene terephthalate (PET) foil substrates. The pattern quality and surface wettability was compared to a conventional polydimethylsiloxane (PDMS) soft lithography process. It was found that the heights of the R2P NIL replicated PIL and C-RESS patterns deviated less than 6% and 5% from the pattern design, respectively. Moreover, the surface wettability of the imprinted PIL and C-RESS patterns was found to be superhydro- and oleophobic and hydro- and oleophobic, respectively, with good robustness for the C-RESS micro-structure. Therefore, the R2P NIL process is expected to be a promising method to fabricate robust C-RESS micro-structures for large-scale anti-biofouling application.
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Affiliation(s)
- Nithi Atthi
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
- Correspondence:
| | - Marc Dielen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
| | - Witsaroot Sripumkhai
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pattaraluck Pattamang
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Rattanawan Meananeatra
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pawasuth Saengdee
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Oraphan Thongsook
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Norabadee Ranron
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Krynnaras Pankong
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Warinrampai Uahchinkul
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Jakrapong Supadech
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Nipapan Klunngien
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Wutthinan Jeamsaksiri
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pim Veldhuizen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
| | - Jan Matthijs ter Meulen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
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10
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Ketpun D, Pimpin A, Tongmanee T, Bhanpattanakul S, Piyaviriyakul P, Srituravanich W, Sripumkhai W, Jeamsaksiri W, Sailasuta A. A Potential Application of Triangular Microwells to Entrap Single Cancer Cells: A Canine Cutaneous Mast Cell Tumor Model. Micromachines (Basel) 2019; 10:mi10120841. [PMID: 31805714 PMCID: PMC6953038 DOI: 10.3390/mi10120841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/27/2019] [Accepted: 11/29/2019] [Indexed: 12/14/2022]
Abstract
Cellular heterogeneity is a major hindrance, leading to the misunderstanding of dynamic cell biology. However, single cell analysis (SCA) has been used as a practical means to overcome this drawback. Many contemporary methodologies are available for single cell analysis; among these, microfluidics is the most attractive and effective technology, due to its advantages of low-volume specimen consumption, label-free evaluation, and real-time monitoring, among others. In this paper, a conceptual application for microfluidic single cell analysis for veterinary research is presented. A microfluidic device is fabricated with an elastomer substrate, polydimethylsiloxane (PDMS), under standard soft lithography. The performance of the microdevice is high-throughput, sensitive, and user-friendly. A total of 53.1% of the triangular microwells were able to trap single canine cutaneous mast cell tumor (MCT) cells. Of these, 38.82% were single cell entrapments, while 14.34% were multiple cell entrapments. The ratio of single-to-multiple cell trapping was high, at 2.7:1. In addition, 80.5% of the trapped cells were viable, indicating that the system was non-lethal. OCT4A-immunofluorescence combined with the proposed system can assess OCT4A expression in trapped single cells more precisely than OCT4A-immunohistochemistry. Therefore, the results suggest that microfluidic single cell analysis could potentially reduce the impact of cellular heterogeneity.
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Affiliation(s)
- Dettachai Ketpun
- Biochemistry Unit, Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand; (D.K.); (P.P.)
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10300, Thailand;
| | - Alongkorn Pimpin
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (A.P.); (T.T.); (W.S.)
| | - Tewan Tongmanee
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (A.P.); (T.T.); (W.S.)
| | - Sudchaya Bhanpattanakul
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10300, Thailand;
| | - Prapruddee Piyaviriyakul
- Biochemistry Unit, Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand; (D.K.); (P.P.)
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10300, Thailand;
| | - Weerayut Srituravanich
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (A.P.); (T.T.); (W.S.)
| | - Witsaroot Sripumkhai
- Thai Microelectronic Centre, Ministry of Science and Technology, Chachoengsao 24000, Thailand; (W.S.); (W.J.)
| | - Wutthinan Jeamsaksiri
- Thai Microelectronic Centre, Ministry of Science and Technology, Chachoengsao 24000, Thailand; (W.S.); (W.J.)
| | - Achariya Sailasuta
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10300, Thailand;
- Correspondence: ; Tel.: +6681-832-1342
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11
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Phuakrod A, Sripumkhai W, Jeamsaksiri W, Pattamang P, Juntasaro E, Thienthong T, Foongladda S, Brindley PJ, Wongkamchai S. Diagnosis of feline filariasis assisted by a novel semi-automated microfluidic device in combination with high resolution melting real-time PCR. Parasit Vectors 2019; 12:159. [PMID: 30961652 PMCID: PMC6454708 DOI: 10.1186/s13071-019-3421-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The diagnosis of filariasis traditionally relies on the detection of circulating microfilariae (mf) using Giemsa-stained thick blood smears. This approach has several limitations. We developed a semi-automated microfluidic device to improve and simplify the detection of filarial nematodes. METHODS The efficiency and repeatability of the microfluidic device was evaluated. Human EDTA blood samples were 'spiked' with B. malayi mf at high, moderate, and low levels, and subsequently tested 10 times. The device was also used for a field survey of feline filariasis in 383 domesticated cats in an area of Narathiwat Province, Thailand, the endemic area of Brugia malayi infection. RESULTS In the control blood arbitrarily spiked with mf, the high level, moderate level and low level mf-positive controls yielded coefficient variation (CV) values of 4.44, 4.16 and 4.66%, respectively, at the optimized flow rate of 6 µl/min. During the field survey of feline filariasis in Narathiwat Province, the device detected mf in the blood of 34 of 383 cats (8.9%) whereas mf were detected in 28 (7.3%) cats using the blood smear test. Genomic DNA was extracted from mf trapped in the device after which high-resolution melting (HRM) real-time PCR assay was carried out, which enabled the simultaneous diagnosis of filarial species. Among the 34 mf-positive samples, 12 were identified as B. malayi, 15 as Dirofilaria immitis and 7 as| D. repens. CONCLUSIONS We developed a semi-automated microfluidic device to detect mf of filarial parasites that could be used to diagnose lymphatic filariasis in human populations. This novel device facilitates rapid, higher-throughput detection and identification of infection with filariae in blood samples.
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Affiliation(s)
- Achinya Phuakrod
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Witsaroot Sripumkhai
- Thai Microelectronic Center, National Electronics and Computer Technology Center, Thailand Science Park, Pathumthani, Thailand
| | - Wutthinan Jeamsaksiri
- Thai Microelectronic Center, National Electronics and Computer Technology Center, Thailand Science Park, Pathumthani, Thailand
| | - Pattaraluck Pattamang
- Thai Microelectronic Center, National Electronics and Computer Technology Center, Thailand Science Park, Pathumthani, Thailand
| | - Ekachai Juntasaro
- Department of Mechanical and Process Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand
| | - Therdthai Thienthong
- Department of Mechanical and Process Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand
| | - Suporn Foongladda
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Paul J Brindley
- Department of Microbiology, Immunology & Tropical Medicine & Research Center for Neglected Diseases of Poverty, School of Medicine & Health Sciences, George Washington University, Washington, DC, USA
| | - Sirichit Wongkamchai
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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12
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Inpota P, Nacapricha D, Sunintaboon P, Sripumkhai W, Jeamsaksiri W, Wilairat P, Chantiwas R. Chemiluminescence detection with microfluidics for innovative in situ measurement of unbound cobalt ions in dynamic equilibrium with bound ions in binding study with polyethyleneimine and its functionalized nanoparticles. Talanta 2018; 188:606-613. [DOI: 10.1016/j.talanta.2018.06.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 06/05/2018] [Accepted: 06/06/2018] [Indexed: 11/24/2022]
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13
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Ketpun D, Sailasuta A, Suwannaphan T, Bhanpattanakul S, Pimpin A, Srituravanich W, Sripumkhai W, Jeamsaksiri W, Piyaviriyakul P. The Viability of Single Cancer Cells after Exposure to Hydrodynamic Shear Stresses in a Spiral Microchannel: A Canine Cutaneous Mast Cell Tumor Model. Micromachines (Basel) 2017; 9:E9. [PMID: 30393286 PMCID: PMC6187537 DOI: 10.3390/mi9010009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/17/2017] [Accepted: 12/25/2017] [Indexed: 12/12/2022]
Abstract
Our laboratory has the fundamental responsibility to study cancer stem cells (CSC) in various models of human and animal neoplasms. However, the major impediments that spike our accomplishment are the lack of universal biomarkers and cellular heterogeneity. To cope with these restrictions, we have tried to apply the concept of single cell analysis, which has hitherto been recommended throughout the world as an imperative solution pack for resolving such dilemmas. Accordingly, our first step was to utilize a predesigned spiral microchannel fabricated by our laboratory to perform size-based single cell separation using mast cell tumor (MCT) cells as a model. However, the impact of hydrodynamic shear stresses (HSS) on mechanical cell injury and viability in a spiral microchannel has not been fully investigated so far. Intuitively, our computational fluid dynamics (CFD) simulation has strongly revealed the formations of fluid shear stress (FSS) and extensional fluid stress (EFS) in the sorting system. The panel of biomedical assays has also disclosed cell degeneration and necrosis in the model. Therefore, we have herein reported the combinatorically detrimental effect of FSS and EFS on the viability of MCT cells after sorting in our spiral microchannel, with discussion on the possibly pathogenic mechanisms of HSS-induced cell injury in the study model.
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Affiliation(s)
- Dettachai Ketpun
- Biochemistry Unit, Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
- Research Fellow in Biomedical Engineering, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore.
| | - Achariya Sailasuta
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Thammawit Suwannaphan
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Sudchaya Bhanpattanakul
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Alongkorn Pimpin
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Werayut Srituravanich
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Witsaroot Sripumkhai
- Thai Microelectronic Centre, Ministry of Science and Technology, Chachoengsao 24000, Thailand.
| | - Wutthinan Jeamsaksiri
- Thai Microelectronic Centre, Ministry of Science and Technology, Chachoengsao 24000, Thailand.
| | - Prapruddee Piyaviriyakul
- Biochemistry Unit, Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
- Companion Animal Cancer-Research Unit (CAC-RU), Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
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Saengdee P, Chaisriratanakul W, Bunjongpru W, Sripumkhai W, Srisuwan A, Hruanun C, Poyai A, Phunpae P, Pata S, Jeamsaksiri W, Kasinreak W, Promptmas C. A silicon nitride ISFET based immunosensor for Ag85B detection of tuberculosis. Analyst 2016; 141:5767-5775. [PMID: 27486595 DOI: 10.1039/c6an00568c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A silicon nitride Ion Sensitive Field Effect Transistor (ISFET) based immunosensor was developed as a low-cost and label-free electrical detection for the detection of antigen 85 complex B (Ag85B). The sensing membrane of the ISFET was modified with 3-aminopropyltriethoxysilane (APTES) followed by glutaraldehyde (GA), yielding an aldehyde-terminated surface. This group is available for immobilization of a monoclonal antibody against a recombinant Ag85B protein (anti-Ag85B antibody). The optimal concentration for anti-Ag85B antibody immobilization onto the modified ISFET was 100 μg ml-1. This optimal condition provided the maximal binding capability and minimal non-specific background signal. The binding event between the recombinant Ag85B antigen and anti-Ag85B antibody on the ISFET surface is presented by monitoring the gate potential change at a constant drain current. The dose response for the recombinant Ag85B protein showed a linear response between 0.12 and 1 μg ml-1 without significant interference from other recombinant proteins. The analytical imprecision (CV%) and accuracy of this Ag85B protein biosensor were 9.73-10.99% and 95.29%, respectively. In addition, an irrelevant antibody and other recombinant proteins were employed as a negative control to demonstrate the non-specific interaction of the antigen and antibody. The success of this immunosensor system for Ag85B protein detection facilitates the construction of a promising device which can shorten the turnaround time for the diagnosis of tuberculosis compared to a standard culture method. Furthermore, this device could also be applied for real-time growth monitoring of Mycobacterium tuberculosis in a mycobacterial culture system.
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Affiliation(s)
- Pawasuth Saengdee
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand
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