1
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Wang X, Shepherd S, Li N, Che C, Song T, Xiong Y, Palm IR, Zhao B, Kohli M, Demirci U, Lu Y, Cunningham BT. A Target Recycling Amplification Process for the Digital Detection of Exosomal MicroRNAs through Photonic Resonator Absorption Microscopy. Angew Chem Int Ed Engl 2023; 62:e202217932. [PMID: 36622783 PMCID: PMC10073263 DOI: 10.1002/anie.202217932] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/10/2023]
Abstract
Exosomal microRNAs (miRNAs) have considerable potential as pivotal biomarkers to monitor cancer development, dis-ease progression, treatment effects and prognosis. Here, we report an efficient target recycling amplification process (TRAP) for the digital detection of miRNAs using photonic resonator absorption microscopy. We achieve multiplex digital detection with sub-attomolar sensitivity in 20 minutes, robust selectivity for single nucleotide variants, and a broad dynamic range from 1 aM to 1 pM. Compared with traditional qRT-PCR, TRAP showed similar accuracy in profiling exosomal miRNAs derived from cancer cells, but also exhibited at least 31-fold and 61-fold enhancement in the limits of miRNA-375 and miRNA-21 detection, respectively. The TRAP approach is ideal for exosomal or circulating miRNA biomarker quantification, where the miRNAs are present in low concentrations or sample volume, with potentials for frequent, low-cost, and minimally invasive point-of-care testing.
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Affiliation(s)
- Xiaojing Wang
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Skye Shepherd
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Nantao Li
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Congnyu Che
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Tingjie Song
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Yanyu Xiong
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Isabella Rose Palm
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Bin Zhao
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Manish Kohli
- Department of Oncology, Mayo Clinic Rochester, MN 55905, USA; Department of Genitourinary Oncology, H. Lee Moffitt Cancer Center, Tampa, FL 12902, USA
| | - Utkan Demirci
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology School of Medicine, Stanford University, Palo Alto, CA 94304, USA
| | - Yi Lu
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Brian T. Cunningham
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, Department of Chemistry, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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2
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Bacon A, Wang W, Lee H, Umrao S, Sinawang PD, Akin D, Khemtonglang K, Tan A, Hirshfield S, Demirci U, Wang X, Cunningham BT. Review of HIV Self Testing Technologies and Promising Approaches for the Next Generation. BIOSENSORS 2023; 13:298. [PMID: 36832064 PMCID: PMC9954708 DOI: 10.3390/bios13020298] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/06/2023] [Accepted: 02/14/2023] [Indexed: 05/28/2023]
Abstract
The ability to self-test for HIV is vital to preventing transmission, particularly when used in concert with HIV biomedical prevention modalities, such as pre-exposure prophylaxis (PrEP). In this paper, we review recent developments in HIV self-testing and self-sampling methods, and the potential future impact of novel materials and methods that emerged through efforts to develop more effective point-of-care (POC) SARS-CoV-2 diagnostics. We address the gaps in existing HIV self-testing technologies, where improvements in test sensitivity, sample-to-answer time, simplicity, and cost are needed to enhance diagnostic accuracy and widespread accessibility. We discuss potential paths toward the next generation of HIV self-testing through sample collection materials, biosensing assay techniques, and miniaturized instrumentation. We discuss the implications for other applications, such as self-monitoring of HIV viral load and other infectious diseases.
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Affiliation(s)
- Amanda Bacon
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Weijing Wang
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Hankeun Lee
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Saurabh Umrao
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Center for Genomic Diagnostics, Woese Institute for Genomic Biology, Urbana, IL 61801, USA
| | - Prima Dewi Sinawang
- Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA 94304, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Demir Akin
- Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA 94304, USA
- Center for Cancer Nanotechnology Excellence for Translational Diagnostics (CCNE-TD), School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Kodchakorn Khemtonglang
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Anqi Tan
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Sabina Hirshfield
- Special Treatment and Research (STAR) Program, Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, NY 11203, USA
| | - Utkan Demirci
- Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA 94304, USA
| | - Xing Wang
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Center for Genomic Diagnostics, Woese Institute for Genomic Biology, Urbana, IL 61801, USA
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Brian T. Cunningham
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Center for Genomic Diagnostics, Woese Institute for Genomic Biology, Urbana, IL 61801, USA
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3
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He S, Yu S, Li R, Chen Y, Wang Q, He Y, Liu X, Wang F. On‐Site Non‐enzymatic Orthogonal Activation of a Catalytic DNA Circuit for Self‐Reinforced In Vivo MicroRNA Imaging. Angew Chem Int Ed Engl 2022; 61:e202206529. [DOI: 10.1002/anie.202206529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Shizhen He
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
| | - Shanshan Yu
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
| | - Ruomeng Li
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
| | - Yingying Chen
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
| | - Qing Wang
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
| | - Yuqiu He
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
| | - Xiaoqing Liu
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
| | - Fuan Wang
- College of Chemistry and Molecular Sciences Wuhan University Wuhan P. R. China
- Department of Gastrointestinal Surgery Zhongnan Hospital of Wuhan University Wuhan P. R. China
- Research Centre for Infectious Diseases and Cancer Chinese Academy of Medical Sciences Wuhan P. R. China
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4
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He S, Yu S, Li R, Chen Y, Wang Q, He Y, Liu X, Wang F. On‐Site Nonenzymatic Orthogonal Activation of a Catalytic DNA Circuit for Self‐Reinforced In Vivo MicroRNA Imaging. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | | | | | - Yuqiu He
- Wuhan University Chemistry CHINA
| | | | - Fuan Wang
- Wuhan University College of Chemistry and Molecular Sciences Bayi Road 299 430072 Wuhan CHINA
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5
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Li J, Huang J. Fuel‐powered DNA nanomachines for biosensing and cancer therapy. Chempluschem 2022; 87:e202200098. [DOI: 10.1002/cplu.202200098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/12/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Jing Li
- Yangzhou University School of Chemistry and Chemical Engineering CHINA
| | - Jin Huang
- Hunan University Chemistry lushan road 410082 Changsha CHINA
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6
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Xiao Z, Darwish GH, Susumu K, Medintz IL, Algar WR. Prototype Smartphone-Based Device for Flow Cytometry with Immunolabeling via Supra-nanoparticle Assemblies of Quantum Dots. ACS MEASUREMENT SCIENCE AU 2022; 2:57-66. [PMID: 36785592 PMCID: PMC9838726 DOI: 10.1021/acsmeasuresciau.1c00033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Methods for the detection, enumeration, and typing of cells are important in many areas of research and healthcare. In this context, flow cytometers are a widely used research and clinical tool but are also an example of a large and expensive instrument that is limited to specialized laboratories. Smartphones have been shown to have excellent potential to serve as portable and lower-cost platforms for analyses that would normally be done in a laboratory. Here, we developed a prototype smartphone-based flow cytometer (FC). This compact 3D-printed device incorporated a laser diode and a microfluidic flow cell and used the built-in camera of a smartphone to track immunofluorescently labeled cells in suspension and measure their color. This capability was enabled by high-brightness supra-nanoparticle assemblies of colloidal semiconductor quantum dots (SiO2@QDs) as well as a support vector machine (SVM) classification algorithm. The smartphone-based FC device detected and enumerated target cells against a background of other cells, simultaneously and selectively counted two different cell types in a mixture, and used multiple colors of SiO2@QD-antibody conjugates to screen for and identify a particular cell type. The potential limits of multicolor detection are discussed alongside ideas for further development. Our results suggest that innovations in materials and engineering should enable eventual smartphone-based FC assays for clinical applications.
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Affiliation(s)
- Zhujun Xiao
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Ghinwa H. Darwish
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Kimihiro Susumu
- Jacobs
Corporation, Hanover, Maryland 21076, United
States
- Optical
Sciences Division, Code 5600, U.S. Naval
Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center
for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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7
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Wei Z, Wang X, Feng H, Ji F, Bai D, Dong X, Huang W. Isothermal nucleic acid amplification technology for rapid detection of virus. Crit Rev Biotechnol 2022; 43:415-432. [PMID: 35156471 DOI: 10.1080/07388551.2022.2030295] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
While the research field and industrial market of in vitro diagnosis (IVD) thrived during and post the COVID-19 pandemic, the development of isothermal nucleic acid amplification test (INAAT) based rapid diagnosis was engendered in a global wised large measure as a problem-solving exercise. This review systematically analyzed the recent advances of INAAT strategies with practical case for the real-world scenario virus detection applications. With the qualities that make INAAT systems useful for making diagnosis relevant decisions, the key performance indicators and the cost-effectiveness of enzyme-assisted methods and enzyme-free methods were compared. The modularity of nucleic acid amplification reactions that can lead to thresholding signal amplifications using INAAT reagents and their methodology design were examined, alongside the potential application with rapid test platform/device integration. Given that clinical practitioners are, by and large, unaware of many the isothermal nucleic acid test advances. This review could bridge the arcane research field of different INAAT systems and signal output modalities with end-users in clinic when choosing suitable test kits and/or methods for rapid virus detection.
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Affiliation(s)
- Zhenting Wei
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Xi'an Key Laboratory of Special Medicine and Health Engineering, Northwestern Polytechnical University, Xi'an, China
- North Sichuan Medical College, Nanchong, China
| | - Xiaowen Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Xi'an Key Laboratory of Special Medicine and Health Engineering, Northwestern Polytechnical University, Xi'an, China
- North Sichuan Medical College, Nanchong, China
| | - Huhu Feng
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Xi'an Key Laboratory of Special Medicine and Health Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Fanpu Ji
- Department of Infectious Diseases, The 2nd Hospital of Xi'an Jiaotong University, Nanchong, China
- National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The 2nd Hospital of Xi'an Jiaotong University, Nanchong, China
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Nanchong, China
| | - Dan Bai
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Xi'an Key Laboratory of Special Medicine and Health Engineering, Northwestern Polytechnical University, Xi'an, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Northwestern Polytechnical University, Nanchong, China
| | - Xiaoping Dong
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Nanchong, China
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Nanchong, China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Xi'an Key Laboratory of Special Medicine and Health Engineering, Northwestern Polytechnical University, Xi'an, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Northwestern Polytechnical University, Nanchong, China
- Institute of Advanced Materials (IAM), Nanjing Tech University, Nanchong, China
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8
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Hambalek JA, Kong JE, Brown C, Munoz HE, Horn T, Bogumil M, Quick E, Ozcan A, Di Carlo D. Methylation-Sensitive Loop-Mediated Isothermal Amplification (LAMP): Nucleic Acid Methylation Detection through LAMP with Mobile Fluorescence Readout. ACS Sens 2021; 6:3242-3252. [PMID: 34467761 DOI: 10.1021/acssensors.1c00902] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The emergence of epigenetic gene regulation and its role in disease have motivated a growing field of epigenetic diagnostics for risk assessment and screening. In particular, irregular cytosine DNA base methylation has been implicated in several diseases, yet the methods for detecting these epigenetic marks are limited to lengthy protocols requiring bulky and costly equipment. We demonstrate a simple workflow for detecting methylated CpG dinucleotides in synthetic and genomic DNA samples using methylation-sensitive restriction enzyme digestion followed by loop-mediated isothermal amplification. We additionally demonstrate a cost-effective mobile fluorescence reader comprising a light-emitting diode bundle, a mirror, and optical fibers to transduce fluorescence signals associated with DNA amplification. The workflow can be performed in approximately 1 h, requiring only a simple heat source, and can therefore provide a foundation for distributable point-of-care testing of DNA methylation levels.
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Affiliation(s)
- Jacob Amos Hambalek
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Janay Elise Kong
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Calvin Brown
- Department of Electrical & Computer Engineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Hector Enrique Munoz
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Thomas Horn
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Michael Bogumil
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Eleni Quick
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Aydogan Ozcan
- Department of Electrical & Computer Engineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Dino Di Carlo
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
- Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, California 90024, United States
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9
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Lu J, Liang S, Tan L, Hu K, Zhao S, Tian J. Sensitive detection of microRNA using a label-free copper nanoparticle system with polymerase-based signal amplification. Anal Bioanal Chem 2020; 412:7179-7185. [PMID: 32785774 DOI: 10.1007/s00216-020-02850-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 11/25/2022]
Abstract
The abnormal expression of microRNAs (miRNAs) has been reported in many diseases, so it is of great interest to develop simple and accurate methods for the detection and analysis of miRNA expression. We have developed a novel biosensor to detect miRNAs. This method is based on a polymeric double-stranded DNA (dsDNA) copper nanoparticle (CuNP) template that is synthesised by a polymerase. When Cu2+ and ascorbic acid are added to the system, the dsDNA template (which is rich in A-T bases) promotes the formation of CuNPs, resulting in high fluorescence intensity. This system provides sensitive analysis of miRNA expression with a limit of detection down to 17.8 pmol/L, due to significant changes in the fluorescence signal of the system before and after the addition of the target. The linear range between F0-F and concentration of miR-122 is 80.0 pmol/L to 4.50 nmol/L, and the recovery rate in spiked HepG2 cell lysates is 93.33-102.53%. This method expands the applications of fluorescent DNA-CuNPs in the field of biosensor analysis, and can be used to detect and analyse any miRNA marker by changing the target recognition sequence. Graphical abstract A label-free dsDNA-CuNP-based and enzyme-assisted signal amplification method for microRNA is constructed.
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Affiliation(s)
- Jiangnan Lu
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry and Pharmaceutical Science of Guangxi Normal University, Guanxi, Guilin, 541004, China
| | - Shuping Liang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry and Pharmaceutical Science of Guangxi Normal University, Guanxi, Guilin, 541004, China
| | - Li Tan
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry and Pharmaceutical Science of Guangxi Normal University, Guanxi, Guilin, 541004, China
| | - Kun Hu
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry and Pharmaceutical Science of Guangxi Normal University, Guanxi, Guilin, 541004, China
| | - Shulin Zhao
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry and Pharmaceutical Science of Guangxi Normal University, Guanxi, Guilin, 541004, China
| | - Jianniao Tian
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry and Pharmaceutical Science of Guangxi Normal University, Guanxi, Guilin, 541004, China.
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10
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Juthani N, Doyle PS. A platform for multiplexed colorimetric microRNA detection using shape-encoded hydrogel particles. Analyst 2020; 145:5134-5140. [PMID: 32567641 PMCID: PMC7392806 DOI: 10.1039/d0an00938e] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report a platform utilizing a reporter enzyme, which produces a chromogenic indigo precipitate that preferentially localizes within a hydrogel microparticle. The 3D network of the hydrogel maintains the rapid target binding kinetics found in solution, while multiplexed target detection is achieved through shape-encoding of the particles. Moreover, the precipitate-laden hydrogels can be imaged with a simple phone camera setup. We used this system to detect microRNA (miRNA) down to 0.22 fmol. We then showed the compatibility of this system with real samples by performing multiplexed miRNA measurements from total RNA from matched colon cancer and normal adjacent tissue.
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Affiliation(s)
- Nidhi Juthani
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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11
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Seok Y, Batule BS, Kim MG. Lab-on-paper for all-in-one molecular diagnostics (LAMDA) of zika, dengue, and chikungunya virus from human serum. Biosens Bioelectron 2020; 165:112400. [PMID: 32729520 DOI: 10.1016/j.bios.2020.112400] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/13/2020] [Accepted: 06/17/2020] [Indexed: 01/23/2023]
Abstract
Several tropical fever viruses transmitted by mosquitoes including zika, dengue, and chikungunya, are becoming a serious problem in global public health. Simple diagnostic tools in early stages are strongly required to monitor and prevent these diseases. Paper diagnostic platforms can provide a solution for these needs, with integration of fluidic control techniques and isothermal amplification methods. Here, we demonstrate a Lab-on-paper for all-in-one molecular diagnostics of zika, dengue, and chikungunya virus from human serum. The entire process of nucleic acid testing that involves sampling, extraction, amplification, and detection is simply operated on a single paper chip. Based on the engineered structure of paper materials and dried chemicals on the all-in-one chip, serum samples containing the target virus RNA were simply added by automatic flow from distilled water injection. Target RNA molecules were concentrated on the binding pad with chitosan and then transported to reaction pads following a pH increase for specific reverse transcription loop-mediated isothermal amplification with fluorescence signal generation. Three targets, zika virus, dengue virus, and chikungunya virus, in human serum were simultaneously detected on the all-in-one paper chip within 60 min at 65 °C. The all-in-one paper chip can be used as a real-time quantitative assay for 5-5000 copies of zika virus RNA. This all-in-one device was successfully used with 5 clinical specimens of zika and dengue virus from real patients. We believe that the proposed all-in-one paper chip can provide a portable, low-cost, user-friendly, sensitive, and specific NAT platform with great potential in point-of-care diagnostics.
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Affiliation(s)
- Youngung Seok
- Department of Mechanical Engineering and Applied Mechanics, School of Engineering and Applied Science, University of Pennsylvania, 233 Towne Building, 220 S. 33rd Street, Philadelphia, PA, 19104, USA
| | - Bhagwan S Batule
- Department of Chemistry, School of Physics and Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Gwangju, 500-712, Republic of Korea; Boditech Med Inc., 43, Geodudanji 1-gil, Dongnae-myeon, Chuncheon-si, Gangwon-do, 24398, Republic of Korea
| | - Min-Gon Kim
- Department of Chemistry, School of Physics and Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Gwangju, 500-712, Republic of Korea.
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12
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Lee H, Lee J, Lee SG, Doyle PS. Hydrogel-Based Colorimetric Assay for Multiplexed MicroRNA Detection in a Microfluidic Device. Anal Chem 2020; 92:5750-5755. [PMID: 32207967 PMCID: PMC7178251 DOI: 10.1021/acs.analchem.9b05043] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
![]()
Although microRNA
(miRNA) expression levels provide important information
regarding disease states owing to their unique dysregulation patterns
in tissues, translation of miRNA diagnostics into point-of-care (POC)
settings has been limited by practical challenges. Here, we developed
a hydrogel-based microfluidic platform for colorimetric profiling
of miRNAs, without the use of complex external equipment for fluidics
and imaging. For sensitive and reliable measurement without the risk
of sequence bias, we employed a gold deposition-based signal amplification
scheme and dark-field imaging, and seamlessly integrated a previously
developed miRNA assay scheme into this platform. The assay demonstrated
a limit of detection of 260 fM, along with multiplexing of small panels
of miRNAs in healthy and cancer samples. We anticipate this versatile
platform to facilitate a broad range of POC profiling of miRNAs in
cancer-associated dysregulation with high-confidence by exploiting
the unique features of hydrogel substrate in an on-chip format and
colorimetric analysis.
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Affiliation(s)
- Hyewon Lee
- Synthetic Biology and Bioengineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Jiseok Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Seung-Goo Lee
- Synthetic Biology and Bioengineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.,Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Patrick S Doyle
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, The United States
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13
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Wu C, Shan Y, Wu X, Wang S, Liu F. Quantitative protein detection using single molecule imaging enzyme-linked immunosorbent assay (iELISA). Anal Biochem 2019; 587:113466. [DOI: 10.1016/j.ab.2019.113466] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 09/19/2019] [Accepted: 09/27/2019] [Indexed: 12/21/2022]
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14
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Lim J, Byun J, Guk K, Hwang SG, Bae PK, Jung J, Kang T, Lim EK. Highly Sensitive in Vitro Diagnostic System of Pandemic Influenza A (H1N1) Virus Infection with Specific MicroRNA as a Biomarker. ACS OMEGA 2019; 4:14560-14568. [PMID: 31528810 PMCID: PMC6740188 DOI: 10.1021/acsomega.9b01790] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 07/31/2019] [Indexed: 05/12/2023]
Abstract
Several microRNAs (miRNAs) have been reported to be closely related to influenza A virus infection, replication, and immune response. Therefore, the development of the infectious-disease detection system using miRNAs as biomarkers is actively underway. Herein, we identified two miRNAs (miR-181c-5p and miR-1254) as biomarkers for detection of pandemic influenza A H1N1 virus infection and proposed the catalytic hairpin assembly-based in vitro diagnostic (CIVD) system for a highly sensitive diagnosis; this system is composed of two sets of cascade hairpin probes enabling to detect miR-181c-5p and miR-1254. We demonstrated that CIVD kits could not only detect subnanomolar levels of target miRNAs but also distinguish even single-base mismatches. Moreover, this CIVD kit has shown excellent detection performance in real intracellular RNA samples and confirmed results similar to those of conventional methods (microarray and quantitative real-time polymerase chain reaction).
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Affiliation(s)
- Jaewoo Lim
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Jihyun Byun
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Kyeonghye Guk
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Seul Gee Hwang
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Pan Kee Bae
- BioNano Health Guard Research Center, 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Juyeon Jung
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Taejoon Kang
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Eun-Kyung Lim
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
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15
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Gupta R, Peveler WJ, Lix K, Algar WR. Comparison of Semiconducting Polymer Dots and Semiconductor Quantum Dots for Smartphone-Based Fluorescence Assays. Anal Chem 2019; 91:10955-10960. [DOI: 10.1021/acs.analchem.9b02881] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rupsa Gupta
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - William J. Peveler
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
- School of Chemistry, University of Glasgow, Joseph Black Building, Glasgow G12 8QQ, United Kingdom
| | - Kelsi Lix
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - W. Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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16
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Taj A, Shaheen A, Xu J, Estrela P, Mujahid A, Asim T, Zubair Iqbal M, Khan WS, Bajwa SZ. In-situ synthesis of 3D ultra-small gold augmented graphene hybrid for highly sensitive electrochemical binding capability. J Colloid Interface Sci 2019; 553:289-297. [PMID: 31212228 DOI: 10.1016/j.jcis.2019.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/17/2019] [Accepted: 06/04/2019] [Indexed: 02/06/2023]
Abstract
The fascinating properties of graphene can be augmented with other nanomaterials to generate hybrids to design innovative applications. Contrary to the conventional methodologies, we showed a novel yet simple, in-situ, biological approach which allowed for the effective growth of gold nanostructures on graphene surfaces (3D Au NS@GO). The morphology of the obtained hybrid consisted of sheets of graphene, anchoring uniform dispersion of ultra-small gold nanostructures of about 2-8 nm diameter. Surface plasmon resonance at 380 nm confirmed the nano-regimen of the hybrid. Fourier transform infrared spectroscopy indicated the utilization of amine spacers to host gold ions leading to nucleation and growth. The exceptional positive surface potential of 55 mV suggest that the hybrid as an ideal support for electrocatalysis. Ultimately, the hybrid was found to be an efficient receptor material for electrochemical performance towards the binding of uric acid which is an important biomolecule of human metabolism. The designed material enabled the detection of uric acid concentrations as low as 30 nM. This synthesis strategy is highly suitable to design new hybrid materials with interesting morphology and outstanding properties for the identification of clinically relevant biomolecules.
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Affiliation(s)
- Ayesha Taj
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box No. 577, Jhang Road, Faisalabad, Pakistan; Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, Pakistan
| | - Ayesha Shaheen
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box No. 577, Jhang Road, Faisalabad, Pakistan; Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, Pakistan
| | - Jie Xu
- Department of Industrial and Mechanical Engineering, College of Engineering, University of Illinois at Chicago, Chicago, USA
| | - Pedro Estrela
- Centre of Biosensor Bioelectronics and Biodevices (C3Bio) and Department of Electronics and Electrical Engineering, University of Bath, Bath BA2 7AY, UK
| | - Adnan Mujahid
- Institute of Chemistry, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Tayyaba Asim
- Department of Environmental Science, Lahore College for Women University, Lahore 54590, Pakistan
| | - M Zubair Iqbal
- Department of Materials Engineering, College of Materials and Textiles, Zhejiang Sci-Tech University, No. 2 Road of Xiasha, Hangzhou 310018, PR China
| | - Waheed S Khan
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box No. 577, Jhang Road, Faisalabad, Pakistan.
| | - Sadia Z Bajwa
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box No. 577, Jhang Road, Faisalabad, Pakistan.
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17
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Rajendran VK, Bakthavathsalam P, Bergquist PL, Sunna A. A portable nucleic acid detection system using natural convection combined with a smartphone. Biosens Bioelectron 2019; 134:68-75. [DOI: 10.1016/j.bios.2019.03.050] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/23/2019] [Accepted: 03/25/2019] [Indexed: 01/24/2023]
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18
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Abstract
Microfluidics platforms can program small amounts of fluids to execute a bio-protocol, and thus, can automate the work of a technician and also integrate a large part of laboratory equipment. Although most microfluidic systems have considerably reduced the size of a laboratory, they are still benchtop units, of a size comparable to a desktop computer. In this paper, we argue that achieving true mobility in microfluidics would revolutionize the domain by making laboratory services accessible during traveling or even in daily situations, such as sport and outdoor activities. We review the existing efforts to achieve mobility in microfluidics, and we discuss the conditions mobile biochips need to satisfy. In particular, we show how we adapted an existing biochip for mobile use, and we present the results when using it during a train ride. Based on these results and our systematic discussion, we identify the challenges that need to be overcome at technical, usability and social levels. In analogy to the history of computing, we make some predictions on the future of mobile biochips. In our vision, mobile biochips will disrupt how people interact with a wide range of healthcare processes, including medical testing and synthesis of on-demand medicine.
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Affiliation(s)
- Mirela Alistar
- Atlas Institute and Department of Computer Science, University of Colorado Boulder, Boulder, CO 80309-0320, USA.
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19
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Abstract
Until very recently, handheld spectrometers were the domain of major analytical and security instrument companies, with turnkey analyzers using spectroscopic techniques from X-ray fluorescence (XRF) for elemental analysis (metals), to Raman, mid-infrared, and near-infrared (NIR) for molecular analysis (mostly organics). However, the past few years have seen rapid changes in this landscape with the introduction of handheld laser-induced breakdown spectroscopy (LIBS), smartphone spectroscopy focusing on medical diagnostics for low-resource areas, commercial engines that a variety of companies can build up into products, hyphenated or dual technology instruments, low-cost visible-shortwave NIR instruments selling directly to the public, and, most recently, portable hyperspectral imaging instruments. Successful handheld instruments are designed to give answers to non-scientist operators; therefore, their developers have put extensive resources into reliable identification algorithms, spectroscopic libraries or databases, and qualitative and quantitative calibrations. As spectroscopic instruments become smaller and lower cost, "engines" have emerged, leading to the possibility of being incorporated in consumer devices and smart appliances, part of the Internet of Things (IOT). This review outlines the technologies used in portable spectroscopy, discusses their applications, both qualitative and quantitative, and how instrument developers and vendors have approached giving actionable answers to non-scientists. It outlines concerns on crowdsourced data, especially for heterogeneous samples, and finally looks towards the future in areas like IOT, emerging technologies for instruments, and portable hyphenated and hyperspectral instruments.
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20
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Hansen-Bruhn M, Nielsen LDF, Gothelf KV. Rapid Detection of Drugs in Human Plasma Using a Small-Molecule-Linked Hybridization Chain Reaction. ACS Sens 2018; 3:1706-1711. [PMID: 30105911 DOI: 10.1021/acssensors.8b00439] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Rapid detection and quantification of pharmaceutical drugs directly in human plasma is of major importance for the development of relevant point-of-care testing devices. Here, we report a method for detection and quantification of small molecules in human plasma. An assay employing a small molecule-linked hybridization chain reaction (HCR) has been devised for the detection of the pharmaceutically relevant drugs digoxin (Dig) and methotrexate (MTX). Double modification by small molecule ligands on the initiator strand act as sites to control the rate of the HCR. Upon protein binding to the modified initiator strand, the HCR is greatly inhibited. If the protein is preincubated with a sample containing the small molecule analyte, the protein binding site is occupied by the analyte and the initiator strand will initiate the HCR. This enables efficient detection and quantification of small-molecule analytes in nanomolar concentration even in 50% human plasma within 4 min. Thus, the rapidity and simplicity of this assay has potential for point-of-care testing.
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Affiliation(s)
- Malthe Hansen-Bruhn
- Center for DNA Nanotechnology (CDNA) at the Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Line D. F. Nielsen
- Center for DNA Nanotechnology (CDNA) at the Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Kurt V. Gothelf
- Center for DNA Nanotechnology (CDNA) at the Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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21
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Gray ER, Turbé V, Lawson VE, Page RH, Cook ZC, Ferns RB, Nastouli E, Pillay D, Yatsuda H, Athey D, McKendry RA. Ultra-rapid, sensitive and specific digital diagnosis of HIV with a dual-channel SAW biosensor in a pilot clinical study. NPJ Digit Med 2018; 1:35. [PMID: 31304317 PMCID: PMC6550230 DOI: 10.1038/s41746-018-0041-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 07/10/2018] [Accepted: 07/12/2018] [Indexed: 02/02/2023] Open
Abstract
Despite widened access to HIV testing, around half of those infected worldwide are unaware of their HIV-positive status and linkage to care remains a major challenge. Current rapid HIV tests are typically analogue risking incorrect interpretation, no facile electronic data capture, poor linkage to care and data loss for public health. Smartphone-connected diagnostic devices have potential to dramatically improve access to testing and patient retention with electronic data capture and wireless connectivity. We report a pilot clinical study of surface acoustic wave biosensors based on low-cost components found in smartphones to diagnose HIV in 133 patient samples. We engineered a small, portable, laboratory prototype and dual-channel biochips, with in-situ reference control coating and miniaturised configuration, requiring only 6 µL plasma. The dual-channel biochips were functionalized by ink-jet printing with capture coatings to detect either anti-p24 or anti-gp41 antibodies, and a reference control. Biochips were tested with 31 plasma samples from patients with HIV, and 102 healthy volunteers. SH-SAW biosensors showed excellent sensitivity, specificity, low sample volumes and rapid time to result, and were benchmarked to commercial rapid HIV tests. Testing for individual biomarkers found sensitivities of 100% (anti-gp41) and 64.5% (anti-p24) (combined sensitivity of 100%) and 100% specificity, within 5 min. All positive results were recorded within 60 s of sample addition with an electronic readout. Next steps will focus on a smartphone-connected device prototype and user-friendly app interface for larger scale evaluation and field studies, towards our ultimate goal of a new generation of affordable, connected point-of-care HIV tests.
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Affiliation(s)
- Eleanor R. Gray
- London Centre for Nanotechnology, University College London, 17–19 Gordon Street, London, WC1H 0AH UK
| | - Valérian Turbé
- London Centre for Nanotechnology, University College London, 17–19 Gordon Street, London, WC1H 0AH UK
- Division of Medicine, University College London, Gower Street, London, WC1E 6BT UK
| | - Victoria E. Lawson
- OJ-Bio Ltd, Biomedicine West Wing, International Centre for Life, Times Square, Newcastle-upon-Tyne, NE1 4EP UK
| | - Robin H. Page
- OJ-Bio Ltd, Biomedicine West Wing, International Centre for Life, Times Square, Newcastle-upon-Tyne, NE1 4EP UK
| | - Zara C. Cook
- OJ-Bio Ltd, Biomedicine West Wing, International Centre for Life, Times Square, Newcastle-upon-Tyne, NE1 4EP UK
| | - R. Bridget Ferns
- Division of Infection and Immunity, University College London, London, WC1E 6BT UK
- Clinical Microbiology and Virology, University College London NHS Foundation Trust, London, W1T 4EU UK
| | - Eleni Nastouli
- Clinical Microbiology and Virology, University College London NHS Foundation Trust, London, W1T 4EU UK
| | - Deenan Pillay
- Division of Infection and Immunity, University College London, London, WC1E 6BT UK
- Africa Health Research Institute, KwaZulu Natal, South Africa
| | - Hiromi Yatsuda
- OJ-Bio Ltd, Biomedicine West Wing, International Centre for Life, Times Square, Newcastle-upon-Tyne, NE1 4EP UK
- Japan Radio Co. Ltd, Saitama, 356-8510 Japan
| | - Dale Athey
- OJ-Bio Ltd, Biomedicine West Wing, International Centre for Life, Times Square, Newcastle-upon-Tyne, NE1 4EP UK
| | - Rachel A. McKendry
- London Centre for Nanotechnology, University College London, 17–19 Gordon Street, London, WC1H 0AH UK
- Division of Medicine, University College London, Gower Street, London, WC1E 6BT UK
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22
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Li SK, Liu ZT, Li JY, Chen AY, Chai YQ, Yuan R, Zhuo Y. Enzyme-free Target Recycling and Double-Output Amplification System for Electrochemiluminescent Assay of Mucin 1 with MoS 2 Nanoflowers as Co-reaction Accelerator. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14483-14490. [PMID: 29664278 DOI: 10.1021/acsami.8b02262] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this work, a sensitive electrochemiluminescent assay of mucin 1 (MUC1) was developed with the advantages of target recycling amplification strategy and effective MoS2 nanoflower (MoS2 NF)-based signal probe. Briefly, the target MUC1 triggered enzyme-free recycling and a double-output amplification process was executed to acquire masses of single-stranded DNA as a mimic target, which further participated in the catalytic hairpin assembly process for signal amplification. Meanwhile, MoS2 NFs were prepared as an effective co-reaction accelerator, which not only possessed excellent catalytic performance for H2O2 decomposition to largely enhance the luminous intensity of N-(aminobutyl)- N-(ethylisoluminol) (ABEI)-H2O2 electrochemiluminescence system but also offered a desirable platform for ABEI-functionalized Ag nanoparticles (ABEI-Ag complexes) loading via Ag-S binding. The experimental results showed the proposed aptasensor had a good linear relationship in the range of 1 fg/mL to 10 ng/mL for MUC1 detection and the limit of detection was 0.58 fg/mL (S/N = 3). In addition, the aptasensor had nice stability and selectivity and huge potential to be applied in clinical research.
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Affiliation(s)
- Sheng-Kai Li
- Key Laboratory of Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , People's Republic of China
| | - Zhi-Ting Liu
- Key Laboratory of Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , People's Republic of China
| | - Ji-Yang Li
- Key Laboratory of Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , People's Republic of China
| | - An-Yi Chen
- Key Laboratory of Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , People's Republic of China
| | - Ya-Qin Chai
- Key Laboratory of Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , People's Republic of China
| | - Ruo Yuan
- Key Laboratory of Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , People's Republic of China
| | - Ying Zhuo
- Key Laboratory of Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , People's Republic of China
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