1
|
Xie Y, Chen Z, Cai D, Huang D, Huang E, Yang X, Zhang T, Wen H, Wang Y, Zhao M, Liu D, Xu B. Rapid Detection of Uropathogens Using an Integrated Multiplex Digital Nucleic Acid Detection Assay Powered by a Digital-to-Droplet Microfluidic Device. Anal Chem 2024. [PMID: 39018349 DOI: 10.1021/acs.analchem.4c02578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
The digital nucleic acid detection assay features the capability of absolute quantitation without the need for calibration, thereby facilitating the rapid identification of pathogens. Although several integrated digital nucleic acid detection techniques have been developed, there are still constraints in terms of automation and analysis throughput. To tackle these challenges, this study presents a digital-to-droplet microfluidic device comprising a digital microfluidics (DMF) module at the bottom and a droplet microfluidics module at the top. Following sample introduction, the extraction of nucleic acid and the dispensation of nucleic acid elution for mixing with the multiple amplification reagents are carried out in the DMF module. Subsequently, the reaction droplets are transported to the sample inlet of the droplet microfluidic module via a liquid outlet, and then droplet generation in four parallel units within the droplet microfluidics module is actuated by negative pressure generated by a syringe vacuum. The digital-to-droplet microfluidic device was employed to execute an integrated multiplex digital droplet nucleic acid detection assay (imDDNA) incorporating loop-mediated isothermal amplification (LAMP). This assay was specifically designed to enable simultaneous detection of four uropathogens, namely, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Enterococcus faecalis. The entire process of the imDDNA is completed within 75 min, with a detection range spanning 5 orders of magnitude (9.43 × 10-2.86 × 104 copies μL-1). The imDDNA was employed for the detection of batched clinical specimens, showing a consistency of 91.1% when compared with that of the conventional method. The imDDNA exhibits simplicity in operation and accuracy in quantification, thus offering potential advantages in achieving rapid pathogen detection.
Collapse
Affiliation(s)
- Yang Xie
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
| | - Zhenhua Chen
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou 510180, China
| | - Dongyang Cai
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou 510180, China
| | - Dezhi Huang
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
| | - Enqi Huang
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
| | - Xiao Yang
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou 510180, China
| | - Ting Zhang
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou 510180, China
| | - Hongting Wen
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
| | - Yu Wang
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China
| | - Meng Zhao
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China
| | - Dayu Liu
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou 510180, China
| | - Banglao Xu
- Department of Laboratory Medicine, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou 510180, China
| |
Collapse
|
2
|
Ye Y, Jin H, Zhao M, Xu F, Jiang Z. Research on the Asymmetric Phenomenon of Voltage Polarity Based on Dielectric Wetting. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2717. [PMID: 38893981 PMCID: PMC11173514 DOI: 10.3390/ma17112717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/10/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024]
Abstract
The present research investigated the voltage polarity asymmetry phenomenon based on dielectric wetting. In an ITO-hydrophobic layer-droplet setup, three reagents with different pH values (3.96, 7.0, and 10.18), two types of hydrophobic materials (AF1601 and 6%T6), and two different thicknesses (340 nm and 2.5 μm) of each material were systematically investigated. The results show that the thickness of the hydrophobic dielectric layer and the pH of the droplets had a significant impact on the droplet contact angle variation with the voltage. The contact angle on the thick hydrophobic dielectric layer followed the Lippmann-Young equation as the voltage changed. The angle of the thin hydrophobic dielectric layer was affected by its own properties and the type of droplet, which led to the occurrence of voltage polarity asymmetry of the electrowetting phenomenon. After further investigation of this phenomenon, it was found that it mainly accounted for the decrease in electric field strength at both ends of the droplet, which was caused by electrochemical reactions and changes in circuit resistance. The leakage current is an important indicator, and this phenomenon can be prevented by increasing the thickness of the hydrophobic dielectric layer.
Collapse
Affiliation(s)
- Yuxing Ye
- College of Engineering, South China Agricultural University, Guangzhou 510640, China; (Y.Y.); (F.X.)
- Micro-Nano Tech Center, Bioland Laboratory, Guangzhou 510000, China;
- College of Food Science, South China Agricultural University, Guangzhou 510640, China
| | - Hui Jin
- Micro-Nano Tech Center, Bioland Laboratory, Guangzhou 510000, China;
| | - Meng Zhao
- Micro-Nano Tech Center, Bioland Laboratory, Guangzhou 510000, China;
| | - Fengying Xu
- College of Engineering, South China Agricultural University, Guangzhou 510640, China; (Y.Y.); (F.X.)
| | - Zhuo Jiang
- College of Food Science, South China Agricultural University, Guangzhou 510640, China
| |
Collapse
|
3
|
Leal-Alves C, Deng Z, Kermeci N, Shih SCC. Integrating microfluidics and synthetic biology: advancements and diverse applications across organisms. LAB ON A CHIP 2024; 24:2834-2860. [PMID: 38712893 DOI: 10.1039/d3lc01090b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Synthetic biology is the design and modification of biological systems for specific functions, integrating several disciplines like engineering, genetics, and computer science. The field of synthetic biology is to understand biological processes within host organisms through the manipulation and regulation of their genetic pathways and the addition of biocontrol circuits to enhance their production capabilities. This pursuit serves to address global challenges spanning diverse domains that are difficult to tackle through conventional routes of production. Despite its impact, achieving precise, dynamic, and high-throughput manipulation of biological processes is still challenging. Microfluidics offers a solution to those challenges, enabling controlled fluid handling at the microscale, offering lower reagent consumption, faster analysis of biochemical reactions, automation, and high throughput screening. In this review, we diverge from conventional focus on automating the synthetic biology design-build-test-learn cycle, and instead, focus on microfluidic platforms and their role in advancing synthetic biology through its integration with host organisms - bacterial cells, yeast, fungi, animal cells - and cell-free systems. The review illustrates how microfluidic devices have been instrumental in understanding biological systems by showcasing microfluidics as an essential tool to create synthetic genetic circuits, pathways, and organisms within controlled environments. In conclusion, we show how microfluidics expedite synthetic biology applications across diverse domains including but not limited to personalized medicine, bioenergy, and agriculture.
Collapse
Affiliation(s)
- Chiara Leal-Alves
- Centre for Applied Synthetic Biology, Concordia University, 7141 Sherbrooke St. W, Montréal, QC, H4B1R6 Canada.
- Department of Electrical and Computer Engineering, Concordia University, 1515 Ste-Catherine St. W, Montréal, QC, H3G1M8 Canada
| | - Zhiyang Deng
- Centre for Applied Synthetic Biology, Concordia University, 7141 Sherbrooke St. W, Montréal, QC, H4B1R6 Canada.
- Department of Electrical and Computer Engineering, Concordia University, 1515 Ste-Catherine St. W, Montréal, QC, H3G1M8 Canada
| | - Natalia Kermeci
- Centre for Applied Synthetic Biology, Concordia University, 7141 Sherbrooke St. W, Montréal, QC, H4B1R6 Canada.
- Department of Biology, Concordia University, 7141 Sherbrooke St. W, Montréal, QC, H4B1R6 Canada
| | - Steve C C Shih
- Centre for Applied Synthetic Biology, Concordia University, 7141 Sherbrooke St. W, Montréal, QC, H4B1R6 Canada.
- Department of Electrical and Computer Engineering, Concordia University, 1515 Ste-Catherine St. W, Montréal, QC, H3G1M8 Canada
- Department of Biology, Concordia University, 7141 Sherbrooke St. W, Montréal, QC, H4B1R6 Canada
| |
Collapse
|
4
|
Wang D, Jin K, Ji J, Hu C, Du M, Belgaid Y, Shi S, Li J, Hu S, Nathan A, Yu J, Ma H. Active-matrix digital microfluidics design for field programmable high-throughput digitalized liquid handling. iScience 2024; 27:109324. [PMID: 38706854 PMCID: PMC11067379 DOI: 10.1016/j.isci.2024.109324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/12/2024] [Accepted: 02/20/2024] [Indexed: 05/07/2024] Open
Abstract
Digital liquid sample handling is an enabling tool for cutting-edge life-sciences research. We present here an active-matrix thin-film transistor (TFT) based digital microfluidics system, referred to as Field Programmable Droplet Array (FPDA). The system contains 256 × 256 pixels in an active area of 10.65 cm2, which can manipulate thousands of addressable liquid droplets simultaneously. By leveraging a novel TFT device and circuits design solution, we manage to programmatically manipulate droplets at single-pixel level. The minimum achievable droplet volume is around 0.5 nL, which is two orders of magnitude smaller than the smallest droplet ever reported on active-matrix digital microfluidics. The movement of droplets can be either pre-programmed or controlled in real-time. The FPDA system shows great potential of the ubiquitous thin-film electronics technology in digital liquid handling. These efforts will make it possible to create a true programmable lab-on-a-chip device to enable great advances in life science research.
Collapse
Affiliation(s)
- Dongping Wang
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P.R. China
| | - Kai Jin
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P.R. China
| | - Jiajian Ji
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P.R. China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Chenxuan Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P.R. China
| | - Maohua Du
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Foshan 528000, P.R. China
| | | | - Subao Shi
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Foshan 528000, P.R. China
| | - Jiahao Li
- ACX Instruments Ltd, Cambridge CB4 0WS, UK
| | - Siyi Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P.R. China
| | - Arokia Nathan
- School of Information Science and Engineering, Shandong University, Qingdao 266237, P.R. China
| | - Jun Yu
- School of Information Science and Engineering, Shandong University, Qingdao 266237, P.R. China
| | - Hanbin Ma
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P.R. China
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Foshan 528000, P.R. China
| |
Collapse
|
5
|
Zhang B, Fu J, Du M, Jin K, Huang Q, Li J, Wang D, Hu S, Li J, Ma H. Polar coordinate active-matrix digital microfluidics for high-resolution concentration gradient generation. LAB ON A CHIP 2024; 24:2193-2201. [PMID: 38465383 DOI: 10.1039/d3lc00979c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Automated concentration gradient generation is one of the most important applications of lab-on-a-chip devices. Digital microfluidics is a unique platform that can effectively achieve digitalized gradient concentration preparation. However, the dynamic range and concentration resolution of the prepared samples heavily rely on the size and the number of effective electrodes. In this work, we report an active-matrix digital microfluidic device with polar coordinate electrode arrangement. The device contains 33 different electrode sizes, generating digital droplets of different volumes. To compare with the conventional rectangular coordinate arrangement with a similar electrode number, this work shows an approximately 19 times resolution enhancement for the achievable concentration gradient. We characterized the stability and uniformity of droplets generated by electrodes of different sizes, and the coefficient of variation of stable droplets was less than 3%. The fluorescent nanomaterial's concentration quantification and glucose concentration characterization experiments were also conducted, and the correlation coefficients for the linearities were all above 0.99.
Collapse
Affiliation(s)
- Bingbing Zhang
- Nanophotonics and Biophotonics Key Laboratory of Jilin Province, Changchun University of Science and Technology, Changchun, 130022, P. R. China.
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, No. 88 Keling Road, Suzhou, Jiangsu Province, 215163, P. R. China.
| | - Jinxin Fu
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, No. 88 Keling Road, Suzhou, Jiangsu Province, 215163, P. R. China.
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, P. R. China
| | - Maohua Du
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Guangdong Province, 528000, P. R. China
| | - Kai Jin
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, No. 88 Keling Road, Suzhou, Jiangsu Province, 215163, P. R. China.
| | - Qi Huang
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, No. 88 Keling Road, Suzhou, Jiangsu Province, 215163, P. R. China.
| | - Jiahao Li
- ACX Instruments Ltd, St John's Innovation Centre, Cowley Road, Cambridge, CB4 0WS, UK
| | - Dongping Wang
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, No. 88 Keling Road, Suzhou, Jiangsu Province, 215163, P. R. China.
| | - Siyi Hu
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, No. 88 Keling Road, Suzhou, Jiangsu Province, 215163, P. R. China.
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Guangdong Province, 528000, P. R. China
| | - Jinhua Li
- Nanophotonics and Biophotonics Key Laboratory of Jilin Province, Changchun University of Science and Technology, Changchun, 130022, P. R. China.
| | - Hanbin Ma
- CAS Key Laboratory of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, No. 88 Keling Road, Suzhou, Jiangsu Province, 215163, P. R. China.
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Guangdong Province, 528000, P. R. China
| |
Collapse
|
6
|
Ji J, Hu C, Pang X, Liang J, Huang Q, Hu S, Mei Q, Ma H. Open Thermal Control System for Stable Polymerase Chain Reaction on a Digital Microfluidic Chip. ACS OMEGA 2024; 9:10937-10944. [PMID: 38463286 PMCID: PMC10918803 DOI: 10.1021/acsomega.3c10312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 03/12/2024]
Abstract
In this paper, a digital microfluidic thermal control system was introduced for the stable polymerase chain reaction (PCR). The system consists of a thermoelectric cooler unit, a thermal control board, and graphical-user-interface software capable of simultaneously achieving temperature control and on-chip droplet observation. A fuzzy proportional-integral-derivative (PID) method was developed for this system. The simulation analysis was performed to evaluate the temperature of different reagents within the chip. Based on the results, applying fuzzy PID control for PCR will enhance the thermal stability by 67.8% and save the time by 1195 s, demonstrating excellent dynamic response capability and thermal robustness. The experimental results are consistent with the simulation results on the planar temperature distribution, with a data consistency rate of over 99%. The PCR validation was carried out on this system, successfully amplifying the rat GAPDH gene at a concentration of 193 copies/μL. This work has the potential to be useful in numerous existing lab-on-a-chip applications.
Collapse
Affiliation(s)
- Jiajian Ji
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences (CAS), Suzhou 215163, China
| | - Chenxuan Hu
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences (CAS), Suzhou 215163, China
| | - Xinpei Pang
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences (CAS), Suzhou 215163, China
| | - Jiancong Liang
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Foshan 528200, China
| | - Qi Huang
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences (CAS), Suzhou 215163, China
| | - Siyi Hu
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences (CAS), Suzhou 215163, China
| | - Qian Mei
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences (CAS), Suzhou 215163, China
| | - Hanbin Ma
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences (CAS), Suzhou 215163, China
| |
Collapse
|
7
|
Xie M, Chen T, Cai Z, Lei B, Dong C. An All-in-One Platform for On-Site Multiplex Foodborne Pathogen Detection Based on Channel-Digital Hybrid Microfluidics. BIOSENSORS 2024; 14:50. [PMID: 38248427 PMCID: PMC10813315 DOI: 10.3390/bios14010050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Recently, significant progress has been made in the development of microdevices for point-of-care infectious disease detection. However, most microdevices only allow limited steps, such as DNA amplification on the chip, while sample preparation, such as lysis and DNA extraction, is conducted off the chip using the traditional method. In this study, an all-in-one platform was developed, which incorporated all necessary procedures for nucleic acid detection. Our on-chip DNA extraction method utilized the magnetic bead-based technology on a hybrid channel-digital microfluidics (C-DMF) microdevice. It yielded high recovery rates, varying from 88.43% to 95.83%, with pathogen concentrations of 103-106 CFU/mL. In particular, the on-chip method exhibited significantly higher efficacy compared to the traditional off-chip manual method, for the DNA extraction of E. coli and S. aureus, representing Gram-negative and Gram-positive bacteria, respectively, at a sample concentration of 103 CFU/mL. To address the need for rapid and accessible diagnostics, colorimetric LAMP amplification was integrated into the proposed microdevice. The results were visually detectable with the naked eye, making it user-friendly for non-specialists. In addition, this platform demonstrated impressive sensitivity in simultaneously detecting common foodborne pathogens in spiked meat samples, achieving the LOD of 102-103 CFU/mL. The entire process, from sampling to result, was fully automated and only required approximately 60 min, offering promising applicability in resource-limited and on-site testing scenarios.
Collapse
Affiliation(s)
- Mei Xie
- Department of Life Sciences, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519000, China;
- Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
| | | | - Zongwei Cai
- Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
| | - Bo Lei
- Department of Life Sciences, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519000, China;
| | - Cheng Dong
- School of Intelligent Systems Science and Engineering, Jinan University, Zhuhai 519000, China
- Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| |
Collapse
|
8
|
Yang C, Gan X, Zeng Y, Xu Z, Xu L, Hu C, Ma H, Chai B, Hu S, Chai Y. Advanced design and applications of digital microfluidics in biomedical fields: An update of recent progress. Biosens Bioelectron 2023; 242:115723. [PMID: 37832347 DOI: 10.1016/j.bios.2023.115723] [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: 07/05/2023] [Revised: 09/11/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
Significant breakthroughs have been made in digital microfluidic (DMF)-based technologies over the past decades. DMF technology has attracted great interest in bioassays depending on automatic microscale liquid manipulations and complicated multi-step processing. In this review, the recent advances of DMF platforms in the biomedical field were summarized, focusing on the integrated design and applications of the DMF system. Firstly, the electrowetting-on-dielectric principle, fabrication of DMF chips, and commercialization of the DMF system were elaborated. Then, the updated droplets and magnetic beads manipulation strategies with DMF were explored. DMF-based biomedical applications were comprehensively discussed, including automated sample preparation strategies, immunoassays, molecular diagnosis, blood processing/testing, and microbe analysis. Emerging applications such as enzyme activity assessment and DNA storage were also explored. The performance of each bioassay was compared and discussed, providing insight into the novel design and applications of the DMF technology. Finally, the advantages, challenges, and future trends of DMF systems were systematically summarized, demonstrating new perspectives on the extensive applications of DMF in basic research and commercialization.
Collapse
Affiliation(s)
- Chengbin Yang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China.
| | - Xiangyu Gan
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China.
| | - Yuping Zeng
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China.
| | - Zhourui Xu
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China.
| | - Longqian Xu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.
| | - Chenxuan Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.
| | - Hanbin Ma
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China; Guangdong ACXEL Micro & Nano Tech Co., Ltd, Foshan, China.
| | - Bao Chai
- Department of Dermatology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China; Department of Dermatology, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.
| | - Siyi Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.
| | - Yujuan Chai
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China.
| |
Collapse
|
9
|
Liu Q, Wang N, Qiu M, Cheng J, Zhou H, Che F, Hu Y, He Y, Dai Y, Zhang Y. Development and application of a universal extraction-free reagent based on an algal glycolipid. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6061-6072. [PMID: 37921204 DOI: 10.1039/d3ay01246h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
In this study, we independently developed a universal nasopharyngeal swab extraction-free reagent based on a trehalose lipid for the rapid detection of pathogen nucleic acids in respiratory infectious diseases. By comparing the isothermal amplification results of a 2019-nCoV pseudovirus solution treated with different components of the extraction-free reagent, we determined the optimal composition of the extraction-free reagent to be a mixed solution of 10 mmol L-1 tris-HCl containing 0.05 mmol L-1 EDTA (TE solution), 5% glycine betaine, 0.5% Triton X-100, and 1.5% trehalose lipid. The results showed that the extraction-free reagent could cleave DNA viruses, RNA viruses, and bacteria to release nucleic acids and did not affect the subsequent nucleic acid amplification. Its efficiency was consistent with that of magnetic bead extraction. Real-time fluorescence quantitative PCR was used to analyze the stability and repeatability of the detection results of the samples treated with the extraction-free reagent and the sensitivity of the extraction-free reagent. The results showed that the extraction-free kit could stably store the pathogen nucleic acid for at least 24 hours, the detection repeatability was satisfactory, and there was no incompatibility with the detection limits of various manufacturers' nucleic acid detection reagents. In conclusion, the established nucleic acid extraction-free method can effectively lyse respiratory infectious disease pathogens to release nucleic acids (DNA and RNA) at room temperature and can directly amplify nucleic acids without extraction steps. This method takes a short time and has high efficiency. The released nucleic acid met the requirements of molecular biological detection methods such as real-time fluorescence quantitative PCR (qPCR), reverse transcription-polymerase chain reaction (RT-PCR), and isothermal nucleic acid amplification (INAA).
Collapse
Affiliation(s)
- Qingqing Liu
- School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Avenue, Longzihu District, Bengbu 233000, China.
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Ningning Wang
- School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Avenue, Longzihu District, Bengbu 233000, China.
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Minli Qiu
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Jun Cheng
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Huajun Zhou
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Feihu Che
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Yan Hu
- Disease Prevention and Control Department, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China
| | - Yinghui He
- Department of Clinical Research, West Lake District Integrated Traditional Chinese and Western Medicine Hospital, 398 Dunxiang Street, Sandun Town, Hangzhou 310000, China
| | - Yuzhu Dai
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Yingjie Zhang
- School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Avenue, Longzihu District, Bengbu 233000, China.
| |
Collapse
|
10
|
Xu Y, Xu T, Chen S, Yao H, Chen Y, Zeng Y, Chen F, Zhang G. Evaluation of a novel lyophilized-pellet-based 2019-nCoV nucleic acid detection kit for the diagnosis of COVID-19. PLoS One 2023; 18:e0292902. [PMID: 37878570 PMCID: PMC10599558 DOI: 10.1371/journal.pone.0292902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 09/30/2023] [Indexed: 10/27/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has swept the world and poses a serious threat to human health. In the post-pandemic-era, we must remain vigilant against the co-infection of SARS-CoV-2 and other respiratory viruses. More accurate and convenient detection methods are required for the diagnosis of SARS-CoV-2 due to its prolonged existence. In this study, the application value of a novel lyophilized-pellet-based 2019-nCoV nucleic acid diagnostic kit (PCoV-Kit) was evaluated by comparing it with a conventional liquid diagnostic kit (LCoV-Kit). We assessed the sensitivity, precision, accuracy, specificity, and amplification efficiency of PCoV-Kit and LCoV-Kit using diluted SARS-CoV-2 RNA reference materials. The results showed that both kits had high sensitivity, precision, accuracy, and specificity. A total of 2,033 oropharyngeal swab specimens collected during mass screening in Fuzhou in December 2022 were applied for the consistency analysis of the two reagents. In the detection of clinical oropharyngeal swab specimens, although the positive rate of PCoV-Kit (19.28%) was slightly lower than that of LCoV-Kit (20.86%), statistical analysis demonstrated a high degree of consistency between the test results obtained using both kit (χ2 = 1.57, P>0.05; Kappa coefficient = 0.90, 95%CI: 0.88-0.93). In conclusion, the use of lyophilized PCoV-Kit provides a non-inferior assay for the diagnosis of COVID-19.
Collapse
Affiliation(s)
- Yiyuan Xu
- Research and Development Department, Fujian CapitalBio Medical laboratory, Fuzhou, Fujian, China
| | - Tian Xu
- Research and Development Department, Fujian CapitalBio Medical laboratory, Fuzhou, Fujian, China
| | - Shaoting Chen
- Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Huakang Yao
- Medical Department, Fujian Provincial Yongtai County Hospital, Fuzhou, Fujian, China
| | - Yuxiang Chen
- Research and Development Department, Fujian CapitalBio Medical laboratory, Fuzhou, Fujian, China
| | - Yanfen Zeng
- Fujian Provincial Center for Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Falin Chen
- Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Guanbin Zhang
- Research and Development Department, Fujian CapitalBio Medical laboratory, Fuzhou, Fujian, China
- Research and Development Department, National Engineering Research Center for Beijing Biochip Technology, Beijing, China
- Department of Laboratory Medicine, Fujian Medical University, Fuzhou, Fujian, China
| |
Collapse
|
11
|
Wu J, Zhang M, Huang J, Guan J, Hu C, Shi M, Hu S, Wang S, Ma H. Enhanced absorbance detection system for online bacterial monitoring in digital microfluidics. Analyst 2023; 148:4659-4667. [PMID: 37615041 DOI: 10.1039/d3an01049j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
We report a fully integrated digital microfluidic absorbance detection system with an enhanced sensitivity for online bacterial monitoring. Through a 100 μm gap in the chip, our optical detection system has a detection sensitivity for a BCA protein concentration of 0.1 mg mL-1. The absorbance detection limit of our system is 1.4 × 10-3 OD units, which is one order of magnitude better than that of the existing studies. The system's linear region is 0.1-7 mg mL-1, and the dynamic range is 0-25 mg mL-1. We measured the growth curves of wild-type and E. coli transformed with resistance plasmids and mixed at different ratios on chip. We sorted out the bacterial species including highly viable single cells based on the difference in absorbance data of growth curves. We explored the changes in the growth curves of E. coli under different concentrations of resistant media. In addition, we successfully screened for the optimal growth environment of the bacteria, in which the growth rate of PET30a-DH5α (in a medium with 33 μg mL-1 kanamycin resistance) was significantly higher than that of a 1 mg mL-1 resistance medium. In conclusion, the enhanced digital microfluidic absorbance detection system exhibits exceptional sensitivity, enabling precise bacterial monitoring and growth curve analysis, while also laying the foundation for DMF-based automated bioresearch platforms, thus advancing research in the life sciences.
Collapse
Affiliation(s)
- Jingya Wu
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528225, P. R. China.
| | - Maolin Zhang
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, P. R. China
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China.
| | - Jianle Huang
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Guangdong Province, 528000, P. R. China
| | - Jingxin Guan
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Guangdong Province, 528000, P. R. China
| | - Chenxuan Hu
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, P. R. China
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China.
| | - Mude Shi
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Guangdong Province, 528000, P. R. China
| | - Siyi Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China.
| | - Shurong Wang
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528225, P. R. China.
| | - Hanbin Ma
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China.
- Guangdong ACXEL Micro & Nano Tech Co., Ltd, Guangdong Province, 528000, P. R. China
| |
Collapse
|
12
|
Staples J, Dourou AM, Liampa I, Sjaarda C, Moslinger E, Wong H, Sheth PM, Arhondakis S, Prakash R. A Miniaturized System for Rapid, Isothermal Detection of SARS-CoV-2 in Human and Environmental Samples. Biomedicines 2023; 11:2038. [PMID: 37509680 PMCID: PMC10377682 DOI: 10.3390/biomedicines11072038] [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] [Received: 06/14/2023] [Revised: 07/12/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
We report a small-footprint cost-effective isothermal rapid DNA amplification system, with integrated microfluidics for automated sample analysis and detection of SARS-CoV-2 in human and environmental samples. Our system measures low-level fluorescent signals in real-time during amplification, while maintaining the desired assay temperature on a low power, portable system footprint. A unique soft microfluidic chip design was implemented to mitigate thermocapillary effects and facilitate optical alignment for automated image capture and signal analysis. The system-on-board prototype, coupled with the LAMP primers designed by BioCoS, was sensitive enough to detect large variations in viral loads of SARS-CoV-2 corresponding to a threshold cycle range of 16 to 39. Furthermore, tested samples consisted of a broad range of viral strains and lineages identified in Canada during 2021-2022. Clinical specimens were collected and tested at the Kingston Health Science Centre using a clinically validated PCR assay, and variants were determined using whole genome sequencing.
Collapse
Affiliation(s)
- Jake Staples
- Department of Electronics Engineering, Carleton University, Ottawa, ON K1S 5B6, Canada
| | | | | | - Calvin Sjaarda
- Kingston Health Sciences Centre, Kingston, ON K7L 2V7, Canada
| | - Emily Moslinger
- Kingston Health Sciences Centre, Kingston, ON K7L 2V7, Canada
| | - Henry Wong
- Kingston Health Sciences Centre, Kingston, ON K7L 2V7, Canada
| | - Prameet M Sheth
- Kingston Health Sciences Centre, Kingston, ON K7L 2V7, Canada
| | | | - Ravi Prakash
- Department of Electronics Engineering, Carleton University, Ottawa, ON K1S 5B6, Canada
| |
Collapse
|
13
|
Wang Y, Wang C, Zhou Z, Si J, Li S, Zeng Y, Deng Y, Chen Z. Advances in Simple, Rapid, and Contamination-Free Instantaneous Nucleic Acid Devices for Pathogen Detection. BIOSENSORS 2023; 13:732. [PMID: 37504131 PMCID: PMC10377012 DOI: 10.3390/bios13070732] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/05/2023] [Accepted: 07/12/2023] [Indexed: 07/29/2023]
Abstract
Pathogenic pathogens invade the human body through various pathways, causing damage to host cells, tissues, and their functions, ultimately leading to the development of diseases and posing a threat to human health. The rapid and accurate detection of pathogenic pathogens in humans is crucial and pressing. Nucleic acid detection offers advantages such as higher sensitivity, accuracy, and specificity compared to antibody and antigen detection methods. However, conventional nucleic acid testing is time-consuming, labor-intensive, and requires sophisticated equipment and specialized medical personnel. Therefore, this review focuses on advanced nucleic acid testing systems that aim to address the issues of testing time, portability, degree of automation, and cross-contamination. These systems include extraction-free rapid nucleic acid testing, fully automated extraction, amplification, and detection, as well as fully enclosed testing and commercial nucleic acid testing equipment. Additionally, the biochemical methods used for extraction, amplification, and detection in nucleic acid testing are briefly described. We hope that this review will inspire further research and the development of more suitable extraction-free reagents and fully automated testing devices for rapid, point-of-care diagnostics.
Collapse
Affiliation(s)
- Yue Wang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Chengming Wang
- Department of Cardiovascular Medicine, The Affiliated Zhuzhou Hospital Xiangya Medical College, Central South University, Zhuzhou 412000, China
| | - Zepeng Zhou
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Jiajia Si
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Yezhan Zeng
- School of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Yan Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhu Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| |
Collapse
|
14
|
Tong Z, Shen C, Li Q, Yin H, Mao H. Combining sensors and actuators with electrowetting-on-dielectric (EWOD): advanced digital microfluidic systems for biomedical applications. Analyst 2023; 148:1399-1421. [PMID: 36752059 DOI: 10.1039/d2an01707e] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The concept of digital microfluidics (DMF) enables highly flexible and precise droplet manipulation at a picoliter scale, making DMF a promising approach to realize integrated, miniaturized "lab-on-a-chip" (LOC) systems for research and clinical purposes. Owing to its simplicity and effectiveness, electrowetting-on-dielectric (EWOD) is one of the most commonly studied and applied effects to implement DMF. However, complex biomedical assays usually require more sophisticated sample handling and detection capabilities than basic EWOD manipulation. Alternatively, combined systems integrating EWOD actuators and other fluidic handling techniques are essential for bringing DMF into practical use. In this paper, we briefly review the main approaches for the integration/combination of EWOD with other microfluidic manipulation methods or additional external fields for specified biomedical applications. The form of integration ranges from independently operating sub-systems to fully coupled hybrid actuators. The corresponding biomedical applications of these works are also summarized to illustrate the significance of these innovative combination attempts.
Collapse
Affiliation(s)
- Zhaoduo Tong
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China. .,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chuanjie Shen
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China. .,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiushi Li
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
| | - Hao Yin
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China. .,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hongju Mao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
| |
Collapse
|
15
|
Kim GR, Hwang JS, Kim JD, Kim YS, Park CY. Electrochemical Gene Amplification Signal Detection of Disposable Biochips Using Electrodes. SENSORS (BASEL, SWITZERLAND) 2022; 22:8624. [PMID: 36433221 PMCID: PMC9693005 DOI: 10.3390/s22228624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Real-time Polymerase Chain Reaction (RT-PCR), a molecular diagnostic technology, is spotlighted as one of the quickest and fastest diagnostic methods for the actual coronavirus (SARS-CoV-2). However, the fluorescent label-based technology of the RT-PCR technique requires expensive equipment and a sample pretreatment process for analysis. Therefore, this paper proposes a biochip based on Electrochemical Impedance Spectroscopy (EIS). In this paper, it was possible to see the change according to the concentration by measuring the impedance with a chip made of two electrodes with different shapes of sample DNA.
Collapse
Affiliation(s)
- Gyo-Rim Kim
- School of Software, Hallym University, Chuncheon-si 24252, Korea
- Bio-IT Research Center, Hallym University, Chuncheon-si 24252, Korea
| | - Ji-Soo Hwang
- School of Software, Hallym University, Chuncheon-si 24252, Korea
- Bio-IT Research Center, Hallym University, Chuncheon-si 24252, Korea
| | - Jong-Dae Kim
- School of Software, Hallym University, Chuncheon-si 24252, Korea
- Bio-IT Research Center, Hallym University, Chuncheon-si 24252, Korea
| | - Yu-Seop Kim
- School of Software, Hallym University, Chuncheon-si 24252, Korea
- Bio-IT Research Center, Hallym University, Chuncheon-si 24252, Korea
| | - Chan-Young Park
- School of Software, Hallym University, Chuncheon-si 24252, Korea
- Bio-IT Research Center, Hallym University, Chuncheon-si 24252, Korea
| |
Collapse
|
16
|
Shen R, Lv A, Yi S, Wang P, Mak PI, Martins RP, Jia Y. Nucleic acid analysis on electrowetting-based digital microfluidics. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
17
|
Kulkarni MB, Ayachit NH, Aminabhavi TM. Recent Advancements in Nanobiosensors: Current Trends, Challenges, Applications, and Future Scope. BIOSENSORS 2022; 12:bios12100892. [PMID: 36291028 PMCID: PMC9599941 DOI: 10.3390/bios12100892] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 05/30/2023]
Abstract
In recent years, there has been immense advancement in the development of nanobiosensors as these are a fundamental need of the hour that act as a potential candidate integrated with point-of-care-testing for several applications, such as healthcare, the environment, energy harvesting, electronics, and the food industry. Nanomaterials have an important part in efficiently sensing bioreceptors such as cells, enzymes, and antibodies to develop biosensors with high selectivity, peculiarity, and sensibility. It is virtually impossible in science and technology to perform any application without nanomaterials. Nanomaterials are distinguished from fine particles used for numerous applications as a result of being unique in properties such as electrical, thermal, chemical, optical, mechanical, and physical. The combination of nanostructured materials and biosensors is generally known as nanobiosensor technology. These miniaturized nanobiosensors are revolutionizing the healthcare domain for sensing, monitoring, and diagnosing pathogens, viruses, and bacteria. However, the conventional approach is time-consuming, expensive, laborious, and requires sophisticated instruments with skilled operators. Further, automating and integrating is quite a challenging process. Thus, there is a considerable demand for the development of nanobiosensors that can be used along with the POCT module for testing real samples. Additionally, with the advent of nano/biotechnology and the impact on designing portable ultrasensitive devices, it can be stated that it is probably one of the most capable ways of overcoming the aforementioned problems concerning the cumulative requirement for the development of a rapid, economical, and highly sensible device for analyzing applications within biomedical diagnostics, energy harvesting, the environment, food and water, agriculture, and the pharmaceutical industry.
Collapse
Affiliation(s)
- Madhusudan B. Kulkarni
- Department of Research & Development, Renalyx Health Systems (P) Limited, Bengaluru 560004, Karnataka, India
| | - Narasimha H. Ayachit
- Department of Physics, Visvesvaraya Technological University (VTU), Belagavi 590018, Karnataka, India
| | - Tejraj M. Aminabhavi
- School of Advanced Sciences, KLE Technological University, Hubballi 580031, Karnataka, India
| |
Collapse
|
18
|
Mannier C, Yoon JY. Progression of LAMP as a Result of the COVID-19 Pandemic: Is PCR Finally Rivaled? BIOSENSORS 2022; 12:bios12070492. [PMID: 35884295 PMCID: PMC9312731 DOI: 10.3390/bios12070492] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/01/2022] [Accepted: 07/02/2022] [Indexed: 06/01/2023]
Abstract
Reflecting on the past three years and the coronavirus disease 19 (COVID-19) pandemic, varying global tactics offer insights into the most effective public-health responses. In the US, specifically, rapid and widespread testing was quickly prioritized to lower restrictions sooner. Essentially, only two types of COVID-19 diagnostic tests were publicly employed during the peak pandemic: the rapid antigen test and reverse transcription polymerase chain reaction (RT-PCR). However, neither test ideally suited the situation, as rapid antigen tests are far too inaccurate, and RT-PCR tests require skilled personnel and sophisticated equipment, leading to long wait times. Loop-mediated isothermal amplification (LAMP) is another exceptionally accurate nucleic acid amplification test (NAAT) that offers far quicker time to results. However, RT-LAMP COVID-19 tests have not been embraced as extensively as rapid antigen tests or RT-PCR. This review will investigate the performance of current RT-LAMP-based COVID-19 tests and summarize the reasons behind the hesitancy to embrace RT-LAMP instead of RT-PCR. We will also look at other LAMP platforms to explore possible improvements in the accuracy and portability of LAMP, which could be applied to COVID-19 diagnostics and future public-health outbreaks.
Collapse
|