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Amornwairat P, Pissuwan D. Colorimetric Sensing of Gram-Negative and Gram-Positive Bacteria Using 4-Mercaptophenylboronic Acid-Functionalized Gold Nanoparticles in the Presence of Polyethylene Glycol. ACS OMEGA 2023; 8:13456-13464. [PMID: 37065017 PMCID: PMC10099429 DOI: 10.1021/acsomega.3c01205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Gold nanoparticles (GNPs) have been used as detection probes for rapid and sensitive detection of various analytes, including bacteria. Here, we demonstrate a simple strategy for bacterial detection using GNPs functionalized with 4-mercaptophenylboronic acid (4-MPBA). 4-MPBA can interact with peptidoglycan or lipopolysaccharides present in bacterial organelles. After the addition of a high concentration of sodium hydroxide (NaOH), the functionalization of the surface of 50 nm GNPs with 4-MPBA (4-MPBA@GNPs) in the presence of polyethylene glycol results in a color change because of the aggregation of 4-MPBA@GNPs. This color change is dependent on the amount of bacteria present in the tested samples. Escherichia coli (E. coli) K-12 and Staphylococcus aureus (S. aureus) are used as Gram-negative and Gram-positive bacterial models, respectively. The color change can be detected within an hour by the naked eye. A linear relationship is observed between bacterial concentrations and the absorbance intensity at 533 nm; R 2 values of 0.9152 and 0.8185 are obtained for E. coli K-12 and S. aureus, respectively. The limit of detection of E. coli K-12 is ∼2.38 × 102 CFU mL-1 and that of S. aureus is ∼4.77 × 103 CFU mL-1. This study provides a promising approach for the rapid detection of target Gram-negative and Gram-positive bacteria.
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Affiliation(s)
- Pinyapat Amornwairat
- Materials
and Engineering Graduate Program, Faculty of Science, Mahidol University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
- Nanobiotechnology
and Nanobiomaterials Research Laboratory, School of Materials Science
and Innovation, Faculty of Science, Mahidol
University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
| | - Dakrong Pissuwan
- Materials
and Engineering Graduate Program, Faculty of Science, Mahidol University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
- Nanobiotechnology
and Nanobiomaterials Research Laboratory, School of Materials Science
and Innovation, Faculty of Science, Mahidol
University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
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2
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madkour E, Abou Zeid A, Abdel Ghany S, Alshehrei FM, EL- Ghareeb D, Abdel-Hakeem M. Sensitive and selective colorimetric detection of Staphylococcus aureus- SPA gene by engineered gold nanosensor. Saudi J Biol Sci 2023; 30:103559. [PMID: 36718281 PMCID: PMC9883283 DOI: 10.1016/j.sjbs.2023.103559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 12/07/2022] [Accepted: 01/08/2023] [Indexed: 01/19/2023] Open
Abstract
Staphylococcal protein A (SPA) is an important virulence factor that enables Staphylococcus aureus to evade host immune responses. The current work aims to detect the S. aureus SPA gene by a colorimetric method based on gold nanoparticles (AuNPs). For this purpose, the chromosomal DNA of S. aureus was extracted. Thereafter, primers and thiolated oligonucleotide probe were designed based on protein A sequence data in the gene bank. PCR analysis was performed, and the PCR product was electrophoresed on 2 % agarose gel. Gold nanosensor (Au-Ns) was synthesized by the reaction between AuNPs and the thiolated oligonucleotide probe. The physicochemical properties of AuNPs and Au-Ns were characterized. The detection of the SPA gene was performed based on color change detected by the naked eye and UV-vis spectrophotometry. Finally, the described method was optimized and validated for standard, clinical, and food samples. The PCR analysis showed a characteristic fragment of the SPA gene with a molecular size of 545 base pairs (bp) and a detection limit of 60 pg/ µL. The physicochemical analyses illustrated Au-Ns' correct preparation with a zeta potential of -13.42 mV and particle size range 6-11 nm. Moreover, Au-Ns showed 100 % specificity with a detection limit (DL) of 6 fg/ µL. The proposed method was well described to be applied in clinical and research laboratories.
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Affiliation(s)
- Engy madkour
- Department of Pharmaceutical Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt
| | - Azza Abou Zeid
- Department of Environmental Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt,Department of Botany and Microbiology, Faculty of Science, Zagazig University, P.O. Box 44519, Sharkia, Egypt
| | - Shaimaa Abdel Ghany
- Department of Environmental Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt
| | - Fatimah M. Alshehrei
- Department of Biology, Jumum College University, Umm Al-Qura University, P.O Box 7388, Makkah 21955, Saudi Arabia
| | - Doaa EL- Ghareeb
- Department of Biology, Jumum College University, Umm Al-Qura University, P.O Box 7388, Makkah 21955, Saudi Arabia,Agriculture Genetic Engineering Research Institute (AGERI), Agriculture Research Centre, Egypt,Corresponding author at: Department of Biology, Jumum College University, Umm Al-Qura University, P.O Box 7388, Makkah 21955, Saudi Arabia.
| | - Mohamed Abdel-Hakeem
- Department of Pharmaceutical Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt
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Mazur F, Tjandra AD, Zhou Y, Gao Y, Chandrawati R. Paper-based sensors for bacteria detection. NATURE REVIEWS BIOENGINEERING 2023; 1:180-192. [PMID: 36937095 PMCID: PMC9926459 DOI: 10.1038/s44222-023-00024-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/09/2023] [Indexed: 02/16/2023]
Abstract
The detection of pathogenic bacteria is essential to prevent and treat infections and to provide food security. Current gold-standard detection techniques, such as culture-based assays and polymerase chain reaction, are time-consuming and require centralized laboratories. Therefore, efforts have focused on developing point-of-care devices that are fast, cheap, portable and do not require specialized training. Paper-based analytical devices meet these criteria and are particularly suitable to deployment in low-resource settings. In this Review, we highlight paper-based analytical devices with substantial point-of-care applicability for bacteria detection and discuss challenges and opportunities for future development.
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Affiliation(s)
- Federico Mazur
- grid.1005.40000 0004 4902 0432School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales, Sydney, New South Wales Australia
| | - Angie Davina Tjandra
- grid.1005.40000 0004 4902 0432School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales, Sydney, New South Wales Australia
| | - Yingzhu Zhou
- grid.1005.40000 0004 4902 0432School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales, Sydney, New South Wales Australia
| | - Yuan Gao
- grid.1005.40000 0004 4902 0432School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales, Sydney, New South Wales Australia
| | - Rona Chandrawati
- grid.1005.40000 0004 4902 0432School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales, Sydney, New South Wales Australia
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Ghasemi F, Fahimi-Kashani N, Bigdeli A, Alshatteri AH, Abbasi-Moayed S, Al-Jaf SH, Merry MY, Omer KM, Hormozi-Nezhad MR. Paper-based optical nanosensors – A review. Anal Chim Acta 2022; 1238:340640. [DOI: 10.1016/j.aca.2022.340640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
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Xue T, Lu Y, Yang H, Hu X, Zhang K, Ren Y, Wu C, Xia X, Deng R, Wang Y. Isothermal RNA Amplification for the Detection of Viable Pathogenic Bacteria to Estimate the Salmonella Virulence for Causing Enteritis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1670-1678. [PMID: 35099949 DOI: 10.1021/acs.jafc.1c07182] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Viable foodborne pathogens can cause intestinal infection and food poisoning. Herein, we reported an RNA assay allowing for sensitive (close to 1 CFU and 1% viable bacteria detectable) and rapid (within 2.5 h) detection of viable pathogenic bacteria by coupling isothermal RNA amplification (nucleic acid sequence-based amplification, NASBA) with a CRISPR/Cas13a system. NASBA allowed direct amplification of 16S rRNA extracted from viable S. enterica (RNAs degrade rapidly in dead bacteria), and the specificity of amplification was ensured using Cas13a/crRNA to recognize the amplicons. We used the CRISPR/Cas13-based NASBA assay (termed cNASBA assay) to investigate the in vivo colonization and intestinal infection of S. enterica in mice. We found that S. enterica was mainly colonized at the cecum, colon, and rectum, and the severity of enteritis caused by S. enterica was determined by the number of viable S. enterica rather than the total count of S. enterica. The cNASBA assay can quantify viable S. enterica and thus can improve the accuracy of virulence estimation compared to qPCR. It shows promise as a reliable tool for monitoring pathogen contamination and biosafety control.
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Affiliation(s)
- Ting Xue
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ying Lu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hao Yang
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Xinyue Hu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kaixiang Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou 450001, China
| | - Yao Ren
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Chengyong Wu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuhan Xia
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Ruijie Deng
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Yuxi Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
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6
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Wen J, Liu J, Wu J, He D. Rapid measurement of waterborne bacterial viability based on difunctional gold nanoprobe. RSC Adv 2022; 12:1675-1681. [PMID: 35425161 PMCID: PMC8978865 DOI: 10.1039/d1ra07287k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/15/2021] [Indexed: 12/18/2022] Open
Abstract
Rapid measurement of waterborne bacterial viability is crucial for ensuring the safety of public health. Herein, we proposed a colorimetric assay for rapid measurement of waterborne bacterial viability based on a difunctional gold nanoprobe (dGNP). This versatile dGNP is composed of bacteria recognizing parts and signal indicating parts, and can generate color signals while recognizing bacterial suspensions of different viabilities. This dGNP-based colorimetric assay has a fast response and can be accomplished within 10 min. Moreover, the proposed colorimetric method is able to measure bacterial viability between 0% and 100%. The method can also measure the viability of other bacteria including Staphylococcus aureus, Shewanella oneidensis, and Escherichia coli O157H7. Furthermore, the proposed method has acceptable recovery (95.5–104.5%) in measuring bacteria-spiked real samples. This study offers a simple and effective method for the rapid measurement of bacterial viability and therefore should have application potential in medical diagnosis, food safety, and environmental monitoring. A colorimetric method is proposed to measure waterborne bacterial viability by using a difunctional gold nanoprobe that can generate color signals while recognizing bacterial suspensions of different viabilities.![]()
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Affiliation(s)
- Junlin Wen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Jianbo Liu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Jialin Wu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Daigui He
- College of Artificial Intelligence, Guangdong Mechanical & Electrical Polytechnic Guangzhou 510550 P. R. China +86-20-36552429 +86-20-36552429
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7
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Chen H, Lin S, Wang Y, Fu S, Ma Y, Xia Q, Lin Y. Paper-based detection of Epstein-Barr virus using asymmetric polymerase chain reaction and gold silicon particles. Anal Chim Acta 2022; 1197:339514. [DOI: 10.1016/j.aca.2022.339514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 01/12/2022] [Accepted: 01/15/2022] [Indexed: 12/27/2022]
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8
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[Applications of microfluidic paper-based chips in environmental analysis and detection]. Se Pu 2021; 39:802-815. [PMID: 34212581 PMCID: PMC9404056 DOI: 10.3724/sp.j.1123.2020.09004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
近年来,微流控纸芯片由于低成本、便携化、检测快等优点,在需要快速检测的环境分析领域中展现出了巨大的应用前景。该综述从微流控纸芯片在环境分析中的应用角度,总结归纳了微流控纸芯片在环境分析中的最新研究进展,并展望了其在未来的发展趋势与挑战。论文内容引用150余篇源于科学引文索引(SCI)与中文核心期刊中的相关论文。该综述包括微流控纸芯片在环境检测中的优势与制造方法介绍;电化学法、荧光法、比色法、表面增强拉曼法、集成传感法等基于纸芯片的先进分析方法介绍;根据环境分析目标物种类,如重金属离子、营养盐、农药、微生物、抗生素以及其他污染物等,对纸芯片的最新应用现状进行了举例评述;基于微流控纸芯片的环境分析研究的未来发展趋势和前景展望。通过综述近期相关研究,表明微流控纸芯片从提出至今虽然只有十几年的发展历程,但其在环境分析研究中的发展却十分迅速。微流控纸芯片可以根据不同的环境条件和检测要求灵活选择制作与分析方法,实现最佳的检测效果。但是微流控纸芯片也面临一些挑战,如纸张机械强度不足、流体控制程度不佳等问题。这些问题指出了微流控纸芯片在环境检测领域的发展趋势,相信随着不断深入的研究,纸芯片将会在未来的环境分析中发挥更大作用。
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Landa G, Miranda-Calderon LG, Sebastian V, Irusta S, Mendoza G, Arruebo M. Selective point-of-care detection of pathogenic bacteria using sialic acid functionalized gold nanoparticles. Talanta 2021; 234:122644. [PMID: 34364453 DOI: 10.1016/j.talanta.2021.122644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/04/2021] [Accepted: 06/18/2021] [Indexed: 11/19/2022]
Abstract
In resource-limited settings, fast and simple point-of-need tests should facilitate healthcare providers the identification of pathogens avoiding empirical suboptimal treatments with broad-spectrum antibiotics. A rapid optical whole cell bacterial biosensor has been here developed using sialic acid functionalized gold nanoparticles allowing the selective screening of Gram-positive Staphylococcus aureus ATCC 25923 and Methicillin Resistant Staphylococcus aureus (MRSA) USA300 and Gram-negative bacteria (Pseudomonas aeruginosa ATCC 15442) by selecting the appropriate dispersing media. Those bacteria were selected due to their common presence in wound bed tissue of chronic infected topical wounds. The discrimination of bacterial pathogens has been attempted in different media including water, two independent buffers, bacterial broth, human serum and human urine. The identification of Gram + bacterial pathogens was also assessed under simultaneous co-culture of S. Aureus and Pseudomonas aeruginosa. High bacterial loads were required to provide with a statistically significant optical pathogen identification in human serum whereas it was not possible to detect the presence of bacteria at clinically relevant levels in urine.
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Affiliation(s)
- Guillermo Landa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain
| | - Laura G Miranda-Calderon
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain
| | - Victor Sebastian
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain
| | - Silvia Irusta
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain
| | - Gracia Mendoza
- Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain
| | - Manuel Arruebo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain.
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10
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Liu CP, Chen ZD, Ye ZY, He DY, Dang Y, Li ZW, Wang L, Ren M, Fan ZJ, Liu HX. Therapeutic Applications of Functional Nanomaterials for Prostatitis. Front Pharmacol 2021; 12:685465. [PMID: 34140892 PMCID: PMC8205439 DOI: 10.3389/fphar.2021.685465] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/10/2021] [Indexed: 01/02/2023] Open
Abstract
Prostatitis is a common disease in adult males, with characteristics of a poor treatment response and easy recurrence, which seriously affects the patient's quality of life. The prostate is located deep in the pelvic cavity, and thus a traditional infusion or other treatment methods are unable to easily act directly on the prostate, leading to poor therapeutic effects. Therefore, the development of new diagnostic and treatment strategies has become a research hotspot in the field of prostatitis treatment. In recent years, nanomaterials have been widely used in the diagnosis and treatment of various infectious diseases. Nanotechnology is a promising tool for 1) the accurate diagnosis of diseases; 2) improving the targeting of drug delivery systems; 3) intelligent, controlled drug release; and 4) multimode collaborative treatment, which is expected to be applied in the diagnosis and treatment of prostatitis. Nanotechnology is attracting attention in the diagnosis, prevention and treatment of prostatitis. However, as a new research area, systematic reviews on the application of nanomaterials in the diagnosis and treatment of prostatitis are still lacking. In this mini-review, we will highlight the treatment approaches for and challenges associated with prostatitis and describe the advantages of functional nanoparticles in improving treatment effectiveness and overcoming side effects.
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Affiliation(s)
- Chun-Ping Liu
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zi-De Chen
- Department of Interventional Radiology, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, South China University of Technology, Guangzhou, China
| | - Zi-Yan Ye
- Department of Interventional Radiology, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, South China University of Technology, Guangzhou, China
| | - Dong-Yue He
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yue Dang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhe-Wei Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Lei Wang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Miao Ren
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhi-Jin Fan
- Guangdong Provincial People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Hong-Xing Liu
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
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11
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Liu CP, Chen ZD, Ye ZY, He DY, Dang Y, Li ZW, Wang L, Ren M, Fan ZJ, Liu HX. Therapeutic Applications of Functional Nanomaterials for Prostatitis. Front Pharmacol 2021. [DOI: 10.3389/fphar.2021.685465
expr 881861845 + 830625731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Prostatitis is a common disease in adult males, with characteristics of a poor treatment response and easy recurrence, which seriously affects the patient’s quality of life. The prostate is located deep in the pelvic cavity, and thus a traditional infusion or other treatment methods are unable to easily act directly on the prostate, leading to poor therapeutic effects. Therefore, the development of new diagnostic and treatment strategies has become a research hotspot in the field of prostatitis treatment. In recent years, nanomaterials have been widely used in the diagnosis and treatment of various infectious diseases. Nanotechnology is a promising tool for 1) the accurate diagnosis of diseases; 2) improving the targeting of drug delivery systems; 3) intelligent, controlled drug release; and 4) multimode collaborative treatment, which is expected to be applied in the diagnosis and treatment of prostatitis. Nanotechnology is attracting attention in the diagnosis, prevention and treatment of prostatitis. However, as a new research area, systematic reviews on the application of nanomaterials in the diagnosis and treatment of prostatitis are still lacking. In this mini-review, we will highlight the treatment approaches for and challenges associated with prostatitis and describe the advantages of functional nanoparticles in improving treatment effectiveness and overcoming side effects.
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12
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Mohammed AS, Balapure A, Khaja MN, Ganesan R, Dutta JR. Naked-eye colorimetric detection of HCV RNA mediated by a 5' UTR-targeted antisense oligonucleotide and plasmonic gold nanoparticles. Analyst 2021; 146:1569-1578. [PMID: 33586713 DOI: 10.1039/d0an02481c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The increasing incidence of hepatitis C viral (HCV) infection worldwide is a major concern for causing liver cirrhosis and hepatocellular carcinoma, leading to increased morbidity and mortality. Currently, the prevalence of HCV infection is estimated to be in the range of ∼3%. According to the World Health Organization, antiviral drugs can cure more than 95% of the HCV infected cases, if timely diagnosis and treatment are provided. The gold standard RT-qPCR assay is expensive and requires a minimum turnaround time of 4 h. Hence, a rapid and cost-effective detection assay that can be used even in resource-limited settings would be highly beneficial for mass level screening. Herein, we present an Au NP based facile strategy for rapid, early-stage, and sensitive detection of HCV RNA in clinical samples which avoids thiol tagging to the antisense oligonucleotide and expensive infrastructure. This technique utilizes the hybridization of a short-chain antisense oligonucleotide from the 5' untranslated region (UTR) of the viral genome with the isolated HCV RNA samples. Using a specific sequence universal to all HCV genotypes-obtained through the NCBI BLASTn tool-the HCV positive samples have stabilized the citrate capped Au NPs against salt-induced aggregation, retaining their red color. On the other hand, negative controls, including HBV and HIV positive samples, do not stabilize the Au NPs, which results in purple coloration. Besides, the assay is successfully tested with a RNase A enzyme-treated HCV positive sample, which does not stabilize the Au NPs, thus confirming the role of the viral HCV RNA in this strategy. This Au NP based assay takes about 30 min using the viral RNA isolate and has high specificity with a detection limit of 100 IU mL-1, which is ∼10 fold lower than the state-of-the-art Au NP based strategy.
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Affiliation(s)
- Almas Shamaila Mohammed
- Department of Biological Sciences, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal, Hyderabad-500078, India. and Bioviz Technologies Pvt Ltd, Plot No. 46, UBI Colony, Road No. 3, Banjara Hills, Hyderabad-500034, India
| | - Aniket Balapure
- Department of Chemistry, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal, Hyderabad-500078, India.
| | - Mahammad Nanne Khaja
- Bioviz Technologies Pvt Ltd, Plot No. 46, UBI Colony, Road No. 3, Banjara Hills, Hyderabad-500034, India
| | - Ramakrishnan Ganesan
- Department of Chemistry, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal, Hyderabad-500078, India.
| | - Jayati Ray Dutta
- Department of Biological Sciences, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal, Hyderabad-500078, India.
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13
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Li D, Liu L, Huang Q, Tong T, Zhou Y, Li Z, Bai Q, Liang H, Chen L. Recent advances on aptamer-based biosensors for detection of pathogenic bacteria. World J Microbiol Biotechnol 2021; 37:45. [PMID: 33554321 DOI: 10.1007/s11274-021-03002-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/08/2021] [Indexed: 01/10/2023]
Abstract
As a significant constituent in biosphere, bacteria have a great influence on human activity. The detection of pathogen bacteria is closely related to the human health. However, the traditional methods for detection of pathogenic bacteria are time-consuming and difficult for quantification, although they are practical and reliable. Therefore, novel strategies for rapid, sensitive, and cost-effective detection are in great demand. Aptamer is a kind of oligonucleotide that selected by repeated screening in vitro or systematic evolution of ligands by exponential enrichment (SELEX) technology. Over the past years, owing to high affinity and specificity of aptamers, a variety of aptamer-based biosensors have been designed and applied for pathogen detection. In this review, we have discussed the recent advances on the applications of aptamer-based biosensors in detection of pathogenic bacteria. In addition, we also point out some problems in current methods and look forward to the further development of aptamer-based biosensors for pathogen detection.
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Affiliation(s)
- Danliang Li
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, China
| | - Luyao Liu
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, China
| | - Qiaoling Huang
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, China
| | - Ting Tong
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, China
| | - You Zhou
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, China
| | - Zhongyu Li
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, China
| | - Qinqin Bai
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China
| | - Hao Liang
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China. .,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, China.
| | - Lili Chen
- Department of health inspection and quarantine, College of Public Health, University of South China, Hengyang, China. .,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, China. .,Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hunan, China.
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14
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Paper-Based Biosensors with Lateral/Vertical Flow Assay. Bioanalysis 2021. [DOI: 10.1007/978-981-15-8723-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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15
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Paul R, Ostermann E, Wei Q. Advances in point-of-care nucleic acid extraction technologies for rapid diagnosis of human and plant diseases. Biosens Bioelectron 2020; 169:112592. [PMID: 32942143 PMCID: PMC7476893 DOI: 10.1016/j.bios.2020.112592] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022]
Abstract
Global health and food security constantly face the challenge of emerging human and plant diseases caused by bacteria, viruses, fungi, and other pathogens. Disease outbreaks such as SARS, MERS, Swine Flu, Ebola, and COVID-19 (on-going) have caused suffering, death, and economic losses worldwide. To prevent the spread of disease and protect human populations, rapid point-of-care (POC) molecular diagnosis of human and plant diseases play an increasingly crucial role. Nucleic acid-based molecular diagnosis reveals valuable information at the genomic level about the identity of the disease-causing pathogens and their pathogenesis, which help researchers, healthcare professionals, and patients to detect the presence of pathogens, track the spread of disease, and guide treatment more efficiently. A typical nucleic acid-based diagnostic test consists of three major steps: nucleic acid extraction, amplification, and amplicon detection. Among these steps, nucleic acid extraction is the first step of sample preparation, which remains one of the main challenges when converting laboratory molecular assays into POC tests. Sample preparation from human and plant specimens is a time-consuming and multi-step process, which requires well-equipped laboratories and skilled lab personnel. To perform rapid molecular diagnosis in resource-limited settings, simpler and instrument-free nucleic acid extraction techniques are required to improve the speed of field detection with minimal human intervention. This review summarizes the recent advances in POC nucleic acid extraction technologies. In particular, this review focuses on novel devices or methods that have demonstrated applicability and robustness for the isolation of high-quality nucleic acid from complex raw samples, such as human blood, saliva, sputum, nasal swabs, urine, and plant tissues. The integration of these rapid nucleic acid preparation methods with miniaturized assay and sensor technologies would pave the road for the "sample-in-result-out" diagnosis of human and plant diseases, especially in remote or resource-limited settings.
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Affiliation(s)
- Rajesh Paul
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Emily Ostermann
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Qingshan Wei
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695, USA; Emerging Plant Disease and Global Food Security Cluster, North Carolina State University, Raleigh, NC, 27695, USA.
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16
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Lateral flow immunostrips for the sensitive and rapid determination of 8-hydroxy-2'-deoxyguanosine using upconversion nanoparticles. Mikrochim Acta 2020; 187:377. [PMID: 32519072 DOI: 10.1007/s00604-020-04349-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 05/18/2020] [Indexed: 12/20/2022]
Abstract
Lateral flow immunostrips were newly designed and a sensitive and rapid fluorometric method for the determination of 8-hydroxy-2'-deoxyguanosine (8-OHdG) as a model target of small biomarker molecules was developed. The upconversion nanoparticles (UCNPs, NaYF4:Yb/Er core, and polyacrylic acid (PAA)-modified shell, size ~ 39 nm, excitation wavelength = 980 nm; emission wavelength = 540 nm) were employed as fluorescence signal material. The 8-OHdG antibody (Ab) was taken as the recognition probe while UCNP-labeled Ab was taken as the signal probe. Bovine serum albumin (BSA) was designed as carrier protein for 8-OHdG to form 8-OHdG-BSA conjugate as the capture probe. The lateral flow immunostrips were prepared by laminating a sample pad (glass fiber membrane), a test pad (nitrocellulose membrane), and adsorption pad (filter paper) on PVP backing. The capture probe was immobilized on the test zone while an IgG antibody taken as the control probe was immobilized on the control zone. When the signal probe and the sample were in sequence loaded on the sample pad, 8-OHdG analyte bound with the signal probe, and then the excess of the signal probe move along the strip and is collected by the capture probe on the test zone while the remnant signal probe is collected by the control probe on the control zone. The signal probe and capture probe were synthesized and characterized. The fluorescence intensity on the test zone was inversely proportional to the concentration of 8-OHdG for the quantitative determination while the fluorescence emission on the control zone was observed to validate the assay. The developed method showed a wide linear range from 0.10 to 10 nM, a quite low detection limit of 0.05 nM, small sample volume requirement (100 μL), short assay time (15 min), and good method reproducibility (RSD = 4.4%, nine immunostrips). Graphical abstract Schematic illustration of the configuration and measurement principle of lateral flow fluorescence immunostrip for 8-OHdG: (a) configuration; (b) preparation: load of capture probe (BSA-8-OHdG, 2 μL) on test zone; load of control probe (IgG Ab, 2 μL) on control zone; load of signal probe (UCNP-Ab, 16 μL) on sample pad; (c) measurement: load of sample (8-OHdG, 100 μL) on sample pad, collection, and measurement.
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17
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Sun J, Huang J, Warden AR, Ding X. Real-time detection of foodborne bacterial viability using a colorimetric bienzyme system in food and drinking water. Food Chem 2020; 320:126581. [PMID: 32208183 DOI: 10.1016/j.foodchem.2020.126581] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 07/26/2019] [Accepted: 03/08/2020] [Indexed: 01/06/2023]
Abstract
Foodborne bacterial infection poses a serious threat to human health. As most diseases are caused by living bacteria, real-time assessment of bacterial viability is vitally important to the public health sector. Herein, we developed a simple and novel colorimetric assay based on the Glucose oxidase (GOD)/Horseradish peroxidase (HRP) bienzyme system for real-time monitoring of bacterial viability in food and drinking water. This bienzyme system is free of any chemical synthesis and only requires 3 sample handling steps. The color response is easily observable with the naked eye or recordable with a smartphone for precise determination of bacterial viability. The proposed strategy was validated with various bacteria both Gram-positive and Gram-negative, indicating its capability for broad-spectrum bacteria viability detection. Therefore, the proposed strategy shows promise for rapid and reliable quality control in food and drinking water.
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Affiliation(s)
- Jiahui Sun
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Jia Huang
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Antony R Warden
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Xianting Ding
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
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18
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Wu M, Zhang X, Wu R, Wang G, Li J, Chai Y, Shen H, Li LS. Sensitive and Quantitative Determination of Cardiac Troponin I Based on Silica-Encapsulated CdSe/ZnS Quantum Dots and a Fluorescence Lateral Flow Immunoassay. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1719125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Min Wu
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | | | - Ruili Wu
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | | | - Jinjie Li
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | | | - Huaibin Shen
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
| | - Lin Song Li
- Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, China
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19
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Xu LD, Zhang Q, Ding SN, Xu JJ, Chen HY. Ultrasensitive Detection of Severe Fever with Thrombocytopenia Syndrome Virus Based on Immunofluorescent Carbon Dots/SiO 2 Nanosphere-Based Lateral Flow Assay. ACS OMEGA 2019; 4:21431-21438. [PMID: 31867538 PMCID: PMC6921636 DOI: 10.1021/acsomega.9b03130] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 11/14/2019] [Indexed: 05/21/2023]
Abstract
Sensitive detection of severe fever with thrombocytopenia syndrome virus (SFTSV) by a point-of-care assay is of great significance for promoting clinical diagnosis. In this work, ultrasensitive detection of SFTSV was achieved by using fluorescent carbon dots/SiO2 nanospheres (CSNs) as reporters for a lateral flow assay. The prepared CSNs were resistant to extreme environments and had strong stability. The uniform CSNs with the size of about 200 nm were obtained by differential centrifugation. Their absolute quantum yields in the aqueous and solid phases are 56.3 and 36.6%, respectively. The excellent fluorescent properties of CSNs make the test strips more sensitive and have a longer assay lifetime. Thus, the visual detection limit of the lateral flow test strip based on immunofluorescent CSN (iCSN) was as low as 10 pg/mL SFTSV nucleoprotein. The sensitivity of this assay is 2 orders of magnitude higher than that of the colloidal gold-based lateral flow test strip. Besides, the assay owns good reproducibility and high specificity. Then, iCSN-based lateral flow test strips were evaluated in real samples of human serum of patients with satisfactory results. Furthermore, this assay has a general prospect for other fluorescent immunochromatography applications.
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Affiliation(s)
- Lai-Di Xu
- Jiangsu
Province Hi-Tech Key Laboratory for Bio-medical Research, School of
Chemistry and Chemical Engineering, Southeast
University, Nanjing 211189, China
| | - Qing Zhang
- Chinese
Academy of Inspection and Quarantine, Beijing 100176, China
| | - Shou-Nian Ding
- Jiangsu
Province Hi-Tech Key Laboratory for Bio-medical Research, School of
Chemistry and Chemical Engineering, Southeast
University, Nanjing 211189, China
| | - Jing-Juan Xu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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20
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Shen J, Zhou T, Huang R. Recent Advances in Electrochemiluminescence Sensors for Pathogenic Bacteria Detection. MICROMACHINES 2019; 10:mi10080532. [PMID: 31412540 PMCID: PMC6723614 DOI: 10.3390/mi10080532] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/04/2019] [Accepted: 08/06/2019] [Indexed: 12/13/2022]
Abstract
Pathogenic bacterial contamination greatly threats human health and safety. Rapidly biosensing pathogens in the early stage of infection would be helpful to choose the correct drug treatment, prevent transmission of pathogens, as well as decrease mortality and economic losses. Traditional techniques, such as polymerase chain reaction and enzyme-linked immunosorbent assay, are accurate and effective, but are greatly limited because they are complex and time-consuming. Electrochemiluminescence (ECL) biosensors combine the advantages of both electrochemical and photoluminescence analysis and are suitable for high sensitivity and simple pathogenic bacteria detection. In this review, we summarize recent advances in ECL sensors for pathogenic bacteria detection and highlight the development of paper-based ECL platforms in point of care diagnosis of pathogens.
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Affiliation(s)
- Jinjin Shen
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Ting Zhou
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Ru Huang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China.
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21
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Chen W, Huang Z, Hu S, Peng J, Liu D, Xiong Y, Xu H, Wei H, Lai W. Invited review: Advancements in lateral flow immunoassays for screening hazardous substances in milk and milk powder. J Dairy Sci 2019; 102:1887-1900. [PMID: 30660416 DOI: 10.3168/jds.2018-15462] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 11/11/2018] [Indexed: 12/17/2022]
Abstract
Dairy-related food safety outbreaks, such as food-borne pathogen contamination, mycotoxin contamination, and veterinary drug contamination, sometimes happen and have been reported all over the world, affecting human health and, in some cases, leading to death. Thus, rapid yet robust detection methods are needed to monitor milk and milk powder for the presence of hazardous substances. The lateral flow immunoassay (LFI) is widely used in onsite testing because of its rapidity, simplicity, and convenience. In this review, we describe some traditional LFI used to detect hazardous substances in milk and milk powder. Furthermore, we discuss recent advances in LFI that aim to improve sensitivity or detection efficiency. These advances include the use of novel label materials, development of signal amplification systems, design of multiplex detection systems, and the use of nucleic acid-based LFI.
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Affiliation(s)
- Wenyao Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Zheng Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Song Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Juan Peng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Daofeng Liu
- Jiangxi Province Center for Disease Control and Prevention, Nanchang 330047, China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Hengyi Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Hua Wei
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Weihua Lai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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Zhao S, Wang S, Zhang S, Liu J, Dong Y. State of the art: Lateral flow assay (LFA) biosensor for on-site rapid detection. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.12.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Emerging nano-biosensing with suspended MNP microbial extraction and EANP labeling. Biosens Bioelectron 2018; 117:781-793. [PMID: 30029200 DOI: 10.1016/j.bios.2018.07.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 02/08/2023]
Abstract
Emerging nano-biosensing with suspended MNP microbial extraction and EANP labeling may ensure a secure microbe-free food supply, as rapid response detection of microbial contamination is of utmost importance. Many biosensor designs have been proposed over the past two decades, covering a broad range of binding ligands, signal amplification, and detection mechanisms. These designs may consist of self-contained test strips developed from the base up with complicated nanoparticle chemistry and intricate ligand immobilization. Other methods use multiple step-wise additions, many based upon ELISA 96-well plate technology with fluorescent detection. In addition, many biosensors use expensive antibody receptors or DNA ligands. But many of these proposed designs are impracticable for most applications or users, since they don't FIRST address the broad goals of any biosensor: Field operability, Inexpensive, with Real-time detection that is both Sensitive and Specific to target, while being as Trouble-free as possible. Described in this review are applications that utilize versatile magnetic nanoparticles (MNP) extraction, electrically active nanoparticles (EANP) labeling, and carbohydrate-based ligand chemistry. MNP provide rapid pathogen extraction from liquid samples. EANP labeling improves signal amplification and expands signaling options to include optical and electrical detection. Carbohydrate ligands are inexpensive, robust structures that are increasingly synthesized for higher selectivity. Used in conjunction with optical or electrical detection of gold nanoparticles (AuNP), carbohydrate-functionalized MNP-cell-AuNP nano-biosensing advances the goal of being the FIRST biosensor of choice in detecting microbial pathogens throughout our food supply chain.
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24
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Ghazi Y, Haddadi F, Kamaladini H. Gold nanoparticle biosensors, a novel application in gene transformation and expression. Mol Cell Probes 2018; 41:1-7. [PMID: 30244767 DOI: 10.1016/j.mcp.2018.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 06/14/2018] [Accepted: 07/05/2018] [Indexed: 12/11/2022]
Abstract
The conventional techniques of PCR, Southern blot, northern blot, in situ hybridization, and RNase protection assay have long been used to investigate transformation and expression of genes, but most of them are time-consuming and have relatively low sensitivity. In recent years, applying biosensors for molecular identification of biomolecules has been expanding significantly. Hence in this study, Zabol melon was used as a model plant to introduce new DNA and RNA-based biosensors for confirming gene transformation and expression. First, the melon seeds were grown in vivo and Agrobacterium tumefaciens LBA4404 was used to introduce GUS reporter gene to the plant. In order to analyze GUS gene transformation and expression, probes were designed based on DNA, RNA, and cDNA of GUS gene sequence. Then, the analysis was performed using probes attached to gold nanoparticles to observe color change of the solution in presence of the target biomolecules. Hybridization of the probes with target molecules was evaluated at a wavelength of 400-700 nm and maximum change was observed in the wavelength range of 550-650 nm. In addition, lower detection limit of the assay was 0.25 ng/μL and linear regression showed the relationship between different concentrations of the genomic DNA and absorbance. Consequently, results showed that application of detectors attached to gold nanoparticles for investigation on gene transformation and expression is more rapid, specific and economic compared to the biochemical and molecular techniques. These tests can be carried out with initial optimization at research centers using the least facilities; hence there will be no need for special equipment.
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Affiliation(s)
- Yaser Ghazi
- Department of Biology, Faculty of Sciences, University of Zabol, Zabol, Iran
| | - Fatemeh Haddadi
- Department of Biology, Faculty of Sciences, University of Zabol, Zabol, Iran.
| | - Hossein Kamaladini
- Department of Biology, Faculty of Sciences, University of Zabol, Zabol, Iran
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25
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Liu Z, Yao C, Yang C, Wang Y, Wan S, Huang J. Development of DNAzyme-based PCR signal cascade amplification for visual detection of Listeria monocytogenes in food. Anal Biochem 2018; 553:7-11. [PMID: 29777679 DOI: 10.1016/j.ab.2018.05.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 01/04/2023]
Abstract
Listeria monocytogenes is an important foodborne pathogen, and it can cause severe diseases. Rapid detection of L. monocytogenes is crucial to control this pathogen. A simple and robust strategy based on the cascade of PCR and G-quadruplex DNAzyme catalyzed reaction was used to detect L. monocytogenes. In the presence of hemin and the aptamer formed during PCR, the catalytic horseradish peroxidase-mimicking G-quadruplex DNAzymes allow the colorimetric responses of target DNA from L. monocytogenes. This assay can detect genomic DNA of L. monocytogenes specifically with as low as 50 pg/reaction with the naked eye. Through 20 pork samples assay, visual detection assay had the same results as conventional detection methods, and had a good performance. This is a powerful demonstration of the ability of G-quadruplex DNAzyme to be used for PCR-based assay with significant advantages of high sensitivity, low cost and simple manipulation over existing approaches and offers the opportunity for application in pathogen detection.
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Affiliation(s)
- Zhanmin Liu
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
| | - Chenhui Yao
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Cuiyun Yang
- Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai 200135, PR China
| | - Yanming Wang
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Sibao Wan
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Junyi Huang
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
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26
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Habimana JDD, Ji J, Sun X. Minireview: Trends in Optical-Based Biosensors for Point-Of-Care Bacterial Pathogen Detection for Food Safety and Clinical Diagnostics. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1458104] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jean de Dieu Habimana
- State Key Laboratory of Food Science and Technology, School of Food Science, National Engineering Research Center for Functional Foods, Synergetic Innovation Center of Food Safety, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
- Department of Food Science and Technology, School of Food Science and Technology, University of Rwanda, Kigali, Rwanda
| | - Jian Ji
- State Key Laboratory of Food Science and Technology, School of Food Science, National Engineering Research Center for Functional Foods, Synergetic Innovation Center of Food Safety, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Xiulan Sun
- State Key Laboratory of Food Science and Technology, School of Food Science, National Engineering Research Center for Functional Foods, Synergetic Innovation Center of Food Safety, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
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27
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Ding C, Li J, Liu X, Liu Q. Development of colloidal gold-based immunochromatographic strip test using two monoclonal antibodies for detection of Vibrio parahaemolyticus. J Food Saf 2018. [DOI: 10.1111/jfs.12468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chengchao Ding
- School of Medical Instrument and Food Engineering; University of Shanghai for Science and Technology; Shanghai China
- Laboratory for Marine Fisheries Science and Food Production Processes; Qingdao National Laboratory for Marine Science and Technology; Qingdao China
| | - Jianwu Li
- School of Medical Instrument and Food Engineering; University of Shanghai for Science and Technology; Shanghai China
| | - Xiao Liu
- The College of Tourism and Culinary Science; Yangzhou University; Yangzhou China
| | - Qing Liu
- School of Medical Instrument and Food Engineering; University of Shanghai for Science and Technology; Shanghai China
- Laboratory for Marine Fisheries Science and Food Production Processes; Qingdao National Laboratory for Marine Science and Technology; Qingdao China
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28
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Du XJ, Zang YX, Liu HB, Li P, Wang S. Recombinase Polymerase Amplification Combined with Lateral Flow Strip for Listeria monocytogenes Detection in Food. J Food Sci 2018. [PMID: 29524216 DOI: 10.1111/1750-3841.14078] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Listeria monocytogenes is an important food-borne pathogenic bacterium that causes human disease, resulting in economic losses worldwide. The current detection methods for L. monocytogenes are not well suited for direct field testing because they involve complicated, time-consuming operations. A simple, efficient method is vital for L. monocytogenes detection. In this study, we combined isothermal recombinase polymerase amplification (RPA) with a lateral flow (LF) strip to rapidly and reliably detect L. monocytogenes. In the presence of biotin- and digoxin-modified primers, RPA produced numerous digoxin- and biotin-attached duplex DNA products. These products were detected on an LF strip via dual immunoreactions (digoxin on the duplex DNA reacted with the anti-digoxin antibody on the gold nanoparticle (Au-NP) and the biotin on the duplex DNA captured by the streptavidin on the LF test zone). The accumulation of Au-NPs produced characteristic bands, enabling the visual detection of L. monocytogenes without instrumentation. This assay could be used to detect L. monocytogenes within 15 min, including DNA amplification with RPA for 10 min at 39 °C and visualization of the amplicons by LF strips for 5 min. Experiments confirmed a detection limit as low as 300 fg of DNA and 1.5 × 101 CFU in pure cultures. Furthermore, RPA-LF exhibited no cross-reactions with pathogens. Evaluation of the method with food samples indicated that the detection limit was substantially improved to 1.5 × 10° CFU for the original bacterial content in 25 g/mL samples after enrichment for 6 hr. RPA-LF can be used as a sensitive and rapid detection technique for L. monocytogenes. PRACTICAL APPLICATION Recombinase polymerase amplification (RPA) can amplify target DNA at 37 to 42 °C without a thermal cycler. Lateral flow (LF) strips are portable, cheap and easy to operate. RPA combined with LF strips to detect Listeria monocytogenes can be widely used in remote areas.
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Affiliation(s)
- Xin-Jun Du
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin Univ. of Science and Technology, Tianjin 300457, China
| | - Yu-Xuan Zang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin Univ. of Science and Technology, Tianjin 300457, China
| | - Hai-Bin Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin Univ. of Science and Technology, Tianjin 300457, China
| | - Ping Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin Univ. of Science and Technology, Tianjin 300457, China
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin Univ. of Science and Technology, Tianjin 300457, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing 100048, China
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Li B, Zhou X, Liu H, Deng H, Huang R, Xing D. Simultaneous Detection of Antibiotic Resistance Genes on Paper-Based Chip Using [Ru(phen) 2dppz] 2+ Turn-on Fluorescence Probe. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4494-4501. [PMID: 29323478 DOI: 10.1021/acsami.7b17653] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Antibiotic resistance, the ability of some bacteria to resist antibiotic drugs, has been a major global health burden due to the extensive use of antibiotic agents. Antibiotic resistance is encoded via particular genes; hence the specific detection of these genes is necessary for diagnosis and treatment of antibiotic resistant cases. Conventional methods for monitoring antibiotic resistance genes require the sample to be transported to a central laboratory for tedious and sophisticated tests, which is grueling and time-consuming. We developed a paper-based chip, integrated with loop-mediated isothermal amplification (LAMP) and the "light switch" molecule [Ru(phen)2dppz]2+, to conduct turn-on fluorescent detection of antibiotic resistance genes. In this assay, the amplification reagents can be embedded into test spots of the chip in advance, thus simplifying the detection procedure. [Ru(phen)2dppz]2+ was applied to intercalate into amplicons for product analysis, enabling this assay to be operated in a wash-free format. The paper-based detection device exhibited a limit of detection (LOD) as few as 100 copies for antibiotic resistance genes. Meanwhile, it could detect antibiotic resistance genes from various bacteria. Noticeably, the approach can be applied to other genes besides antibiotic resistance genes by simply changing the LAMP primers. Therefore, this paper-based chip has the potential for point-of-care (POC) applications to detect various gene samples, especially in resource-limited conditions.
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Affiliation(s)
- Bofan Li
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics South China Normal University , Guangzhou 510631, China
| | - Xiaoming Zhou
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics South China Normal University , Guangzhou 510631, China
| | - Hongxing Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics South China Normal University , Guangzhou 510631, China
| | - Huaping Deng
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics South China Normal University , Guangzhou 510631, China
| | - Ru Huang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics South China Normal University , Guangzhou 510631, China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics South China Normal University , Guangzhou 510631, China
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30
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Banerjee R, Jaiswal A. Recent advances in nanoparticle-based lateral flow immunoassay as a point-of-care diagnostic tool for infectious agents and diseases. Analyst 2018; 143:1970-1996. [DOI: 10.1039/c8an00307f] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances in lateral flow immunoassay-based devices as a point-of-care analytical tool for the detection of infectious diseases are reviewed.
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Affiliation(s)
- Ruptanu Banerjee
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Mandi-175005
- India
| | - Amit Jaiswal
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Mandi-175005
- India
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31
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32
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Wang Y, Duncan TV. Nanoscale sensors for assuring the safety of food products. Curr Opin Biotechnol 2017; 44:74-86. [DOI: 10.1016/j.copbio.2016.10.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 10/22/2016] [Indexed: 12/16/2022]
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33
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Mocan T, Matea CT, Pop T, Mosteanu O, Buzoianu AD, Puia C, Iancu C, Mocan L. Development of nanoparticle-based optical sensors for pathogenic bacterial detection. J Nanobiotechnology 2017; 15:25. [PMID: 28359284 PMCID: PMC5374694 DOI: 10.1186/s12951-017-0260-y] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Accepted: 03/20/2017] [Indexed: 01/16/2023] Open
Abstract
Background Pathogenic bacteria contribute to various globally important diseases, killing millions of people each year. Various fields of medicine currently benefit from or may potentially benefit from the use of nanotechnology applications, in which there is growing interest. Disease-related biomarkers can be rapidly and directly detected by nanostructures, such as nanowires, nanotubes, nanoparticles, cantilevers, microarrays, and nanoarrays, as part of an accurate process characterized by lower sample consumption and considerably higher sensitivity. There is a need for accurate techniques for pathogenic bacteria identification and detection to allow the prevention and management of pathogenic diseases and to assure food safety. Conclusion The focus of this review is on the current nanoparticle-based techniques for pathogenic bacterial identification and detection using these applications.
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Affiliation(s)
- Teodora Mocan
- Department of Nanomedicine, "Octavian Fodor" Gastroenterology Institute, 19-21 Croitorilor Street, Cluj-Napoca, Romania.,Department of Physiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, 3-5 Clinicilor Street, Cluj-Napoca, Romania
| | - Cristian T Matea
- Department of Nanomedicine, "Octavian Fodor" Gastroenterology Institute, 19-21 Croitorilor Street, Cluj-Napoca, Romania.,3rd Surgery Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, 19-21 Croitorilor Street, Cluj-Napoca, Romania
| | - Teodora Pop
- 3rd Gastroenterology Department, "Iuliu Hatieganu" University of Medicine and Pharmacy, 19-21 Croitorilor Street, Cluj-Napoca, Romania
| | - Ofelia Mosteanu
- 3rd Gastroenterology Department, "Iuliu Hatieganu" University of Medicine and Pharmacy, 19-21 Croitorilor Street, Cluj-Napoca, Romania
| | - Anca Dana Buzoianu
- Department of Clinical Pharmacology, "Iuliu Hatieganu" University of Medicine and Pharmacy, 3-5 Clinicilor Street, Cluj-Napoca, Romania
| | - Cosmin Puia
- Department of Nanomedicine, "Octavian Fodor" Gastroenterology Institute, 19-21 Croitorilor Street, Cluj-Napoca, Romania.,3rd Surgery Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, 19-21 Croitorilor Street, Cluj-Napoca, Romania
| | - Cornel Iancu
- Department of Nanomedicine, "Octavian Fodor" Gastroenterology Institute, 19-21 Croitorilor Street, Cluj-Napoca, Romania. .,3rd Surgery Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, 19-21 Croitorilor Street, Cluj-Napoca, Romania.
| | - Lucian Mocan
- Department of Nanomedicine, "Octavian Fodor" Gastroenterology Institute, 19-21 Croitorilor Street, Cluj-Napoca, Romania. .,3rd Surgery Clinic, "Iuliu Hatieganu" University of Medicine and Pharmacy, 19-21 Croitorilor Street, Cluj-Napoca, Romania.
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34
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Quantum dots-labeled strip biosensor for rapid and sensitive detection of microRNA based on target-recycled nonenzymatic amplification strategy. Biosens Bioelectron 2017; 87:931-940. [DOI: 10.1016/j.bios.2016.09.043] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/29/2016] [Accepted: 09/12/2016] [Indexed: 12/15/2022]
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35
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Liu H, Zhou X, Liu W, Yang X, Xing D. Paper-Based Bipolar Electrode Electrochemiluminescence Switch for Label-Free and Sensitive Genetic Detection of Pathogenic Bacteria. Anal Chem 2016; 88:10191-10197. [DOI: 10.1021/acs.analchem.6b02772] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hongxing Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Xiaoming Zhou
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Weipeng Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Xiaoke Yang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
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36
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Teng J, Yuan F, Ye Y, Zheng L, Yao L, Xue F, Chen W, Li B. Aptamer-Based Technologies in Foodborne Pathogen Detection. Front Microbiol 2016; 7:1426. [PMID: 27672383 PMCID: PMC5018482 DOI: 10.3389/fmicb.2016.01426] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 08/29/2016] [Indexed: 11/13/2022] Open
Abstract
Aptamers are single stranded DNA or RNA ligands, which can be selected by a method called systematic evolution of ligands by exponential enrichment (SELEX); and they can specifically recognize and bind to their targets. These unique characteristics of aptamers offer great potentials in applications such as pathogen detection and biomolecular screening. Pathogen detection is the critical means in detecting and identifying the problems related to public health and food safety; and only the rapid, sensitive and efficient detection technologies can enable the users to make the accurate assessments on the risks of infections (humans and animals) or contaminations (foods and other commodities) caused by various pathogens. This article reviews the development in the field of the aptamer-based approaches for pathogen detection, including whole-cell SELEX and Genomic SELEX. Nowadays, a variety of aptamer-based biosensors have been developed for pathogen detection. Thus, in this review, we also cover the development in aptamer-based biosensors including optical biosensors for multiple pathogen detection by multiple-labeling or label-free models such as fluorescence detection and surface plasmon resonance, electrochemical biosensors and lateral chromatography test strips, and their applications in pathogen detection and biomolecular screening. While notable progress has been made in the field in the last decade, challenges or drawbacks in their applications such as pathogen detection and biomolecular screening remain to be overcome.
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Affiliation(s)
- Jun Teng
- College of Food Science and Engineering, Hefei University of Technology, HefeiChina
| | - Fang Yuan
- Animal Quarantine Laboratory, Jiangsu Entry-Exit Inspection and Quarantine Bureau, NanjingChina
| | - Yingwang Ye
- College of Food Science and Engineering, Hefei University of Technology, HefeiChina
| | - Lei Zheng
- College of Food Science and Engineering, Hefei University of Technology, HefeiChina
| | - Li Yao
- College of Food Science and Engineering, Hefei University of Technology, HefeiChina
| | - Feng Xue
- Animal Quarantine Laboratory, Jiangsu Entry-Exit Inspection and Quarantine Bureau, NanjingChina
| | - Wei Chen
- College of Food Science and Engineering, Hefei University of Technology, HefeiChina
| | - Baoguang Li
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MDUSA
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37
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38
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Digital camera and smartphone as detectors in paper-based chemiluminometric genotyping of single nucleotide polymorphisms. Anal Bioanal Chem 2016; 408:7393-402. [DOI: 10.1007/s00216-016-9819-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/28/2016] [Accepted: 07/20/2016] [Indexed: 01/10/2023]
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39
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Hu J, Zhang ZL, Wen CY, Tang M, Wu LL, Liu C, Zhu L, Pang DW. Sensitive and Quantitative Detection of C-Reaction Protein Based on Immunofluorescent Nanospheres Coupled with Lateral Flow Test Strip. Anal Chem 2016; 88:6577-84. [DOI: 10.1021/acs.analchem.6b01427] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jiao Hu
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Zhi-Ling Zhang
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Cong-Ying Wen
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Man Tang
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Ling-Ling Wu
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Cui Liu
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Lian Zhu
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Dai-Wen Pang
- Key Laboratory
of Analytical
Chemistry for Biology and Medicine (Ministry of Education), College
of Chemistry and Molecular Sciences, State Key Laboratory of Virology,
The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
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40
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Fu Q, Wu Z, Xu F, Li X, Yao C, Xu M, Sheng L, Yu S, Tang Y. A portable smart phone-based plasmonic nanosensor readout platform that measures transmitted light intensities of nanosubstrates using an ambient light sensor. LAB ON A CHIP 2016; 16:1927-33. [PMID: 27137512 DOI: 10.1039/c6lc00083e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Plasmonic nanosensors may be used as tools for diagnostic testing in the field of medicine. However, quantification of plasmonic nanosensors often requires complex and bulky readout instruments. Here, we report the development of a portable smart phone-based plasmonic nanosensor readout platform (PNRP) for accurate quantification of plasmonic nanosensors. This device operates by transmitting excitation light from a LED through a nanosubstrate and measuring the intensity of the transmitted light using the ambient light sensor of a smart phone. The device is a cylinder with a diameter of 14 mm, a length of 38 mm, and a gross weight of 3.5 g. We demonstrated the utility of this smart phone-based PNRP by measuring two well-established plasmonic nanosensors with this system. In the first experiment, the device measured the morphology changes of triangular silver nanoprisms (AgNPRs) in an immunoassay for the detection of carcinoembryonic antigen (CEA). In the second experiment, the device measured the aggregation of gold nanoparticles (AuNPs) in an aptamer-based assay for the detection of adenosine triphosphate (ATP). The results from the smart phone-based PNRP were consistent with those from commercial spectrophotometers, demonstrating that the smart phone-based PNRP enables accurate quantification of plasmonic nanosensors.
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Affiliation(s)
- Qiangqiang Fu
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou 510632, PR China.
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41
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Özalp VC, Çam D, Hernandez FJ, Hernandez LI, Schäfer T, Öktem HA. Small molecule detection by lateral flow strips via aptamer-gated silica nanoprobes. Analyst 2016; 141:2595-9. [PMID: 27041474 DOI: 10.1039/c6an00273k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A fast, sensitive and ratiometric biosensor strategy for small molecule detection was developed through nanopore actuation. The new platform engineers together, a highly selective molecular recognition element, aptamers, and a novel signal amplification mechanism, gated nanopores. As a proof of concept, aptamer gated silica nanoparticles have been successfully used as a sensing platform for the detection of ATP concentrations at a wide linear range from 100 μM up to 2 mM.
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Affiliation(s)
- V Cengiz Özalp
- School of Medicine, Istanbul Kemerburgaz University, Istanbul, 34217, Turkey.
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42
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Meredith NA, Quinn C, Cate DM, Reilly TH, Volckens J, Henry CS. Paper-based analytical devices for environmental analysis. Analyst 2016; 141:1874-1887. [PMID: 26901771 PMCID: PMC9423764 DOI: 10.1039/c5an02572a] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
The field of paper-based microfluidics has experienced rapid growth over the past decade. Microfluidic paper-based analytical devices (μPADs), originally developed for point-of-care medical diagnostics in resource-limited settings, are now being applied in new areas, such as environmental analyses. Low-cost paper sensors show great promise for on-site environmental analysis; the theme of ongoing research complements existing instrumental techniques by providing high spatial and temporal resolution for environmental monitoring. This review highlights recent applications of μPADs for environmental analysis along with technical advances that may enable μPADs to be more widely implemented in field testing.
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Affiliation(s)
- Nathan A Meredith
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
| | - Casey Quinn
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado 80523, USA.
| | - David M Cate
- Department of Biomedical Engineering, Colorado State University, Fort Collins, Colorado 80523, USA and Intellectual Ventures, Bellevue, Washington 98007, USA
| | - Thomas H Reilly
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA. and Access Sensor Technologies, LLC, Fort Collins, Colorado 80524, USA
| | - John Volckens
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado 80523, USA. and Department of Mechanical Engineering, Colorado State University, Fort Collins, Colorado 80523, USA
| | - Charles S Henry
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA. and Department of Biomedical Engineering, Colorado State University, Fort Collins, Colorado 80523, USA and Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523, USA
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43
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Liu W, Zhu M, Liu H, Wei J, Zhou X, Xing D. Invading stacking primer: A trigger for high-efficiency isothermal amplification reaction with superior selectivity for detecting microRNA variants. Biosens Bioelectron 2016; 81:309-316. [PMID: 26985583 DOI: 10.1016/j.bios.2016.02.073] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/15/2016] [Accepted: 02/29/2016] [Indexed: 01/07/2023]
Abstract
Searching for a strategy to enhance the efficiency of nucleic acid amplification and achieve exquisite discrimination of nucleic acids at the single-base level for biological detection has become an exciting research direction in recent years. Here, we have developed a simple and universal primer design strategy which produces a fascinating effect on isothermal strand displacement amplification (iSDA). We refer to the resultant primer as "invading stacking primer (IS-Primer)" which is based on contiguous stacking hybridization and toehold-mediated exchange reaction and function by merely changing the hybridization location of the primer. Using the IS-Primer, the sensitivity in detecting the target miR-21 is improved approximately five fold compared with the traditional iSDA reaction. It was further demonstrated that the IS-Primer acts as an invading strand to initiate branch migration which can increase the efficiency of the untwisting of the hairpin probe. This effect is equivalent to reducing the free energy of the stem, and the technique shows superior selectivity for single-base mismatches. By demonstrating the enhanced effect of the IS-Primer in the iSDA reaction, this work may provide a potentially new avenue for developing more sensitive and selective nucleic acids assays.
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Affiliation(s)
- Weipeng Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Minjun Zhu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Hongxing Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Jitao Wei
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Xiaoming Zhou
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.
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Lee S, Aranyosi AJ, Wong MD, Hong JH, Lowe J, Chan C, Garlock D, Shaw S, Beattie PD, Kratochvil Z, Kubasti N, Seagers K, Ghaffari R, Swanson CD. Flexible opto-electronics enabled microfluidics systems with cloud connectivity for point-of-care micronutrient analysis. Biosens Bioelectron 2015; 78:290-299. [PMID: 26630284 DOI: 10.1016/j.bios.2015.11.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 11/10/2015] [Accepted: 11/20/2015] [Indexed: 01/07/2023]
Abstract
In developing countries, the deployment of medical diagnostic technologies remains a challenge because of infrastructural limitations (e.g. refrigeration, electricity), and paucity of health professionals, distribution centers and transportation systems. Here we demonstrate the technical development and clinical testing of a novel electronics enabled microfluidic paper-based analytical device (EE-μPAD) for quantitative measurement of micronutrient concentrations in decentralized, resource-limited settings. The system performs immune-detection using paper-based microfluidics, instrumented with flexible electronics and optoelectronic sensors in a mechanically robust, ultrathin format comparable in size to a credit card. Autonomous self-calibration, plasma separation, flow monitoring, timing and data storage enable multiple devices to be run simultaneously. Measurements are wirelessly transferred to a mobile phone application that geo-tags the data and transmits it to a remote server for real time tracking of micronutrient deficiencies. Clinical tests of micronutrient levels from whole blood samples (n=95) show comparable sensitivity and specificity to ELISA-based tests. These results demonstrate instantaneous acquisition and global aggregation of diagnostics data using a fully integrated point of care system that will enable rapid and distributed surveillance of disease prevalence and geographical progression.
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Affiliation(s)
- Stephen Lee
- MC10 Inc., 10 Maguire Road, Bldg 3, Lexington, MA 02421 USA.
| | - A J Aranyosi
- MC10 Inc., 10 Maguire Road, Bldg 3, Lexington, MA 02421 USA
| | - Michelle D Wong
- Diagnostics for All, Inc., 840 Memorial Drive, Cambridge, MA 02139 USA
| | - Ji Hyung Hong
- Diagnostics for All, Inc., 840 Memorial Drive, Cambridge, MA 02139 USA
| | - Jared Lowe
- Diagnostics for All, Inc., 840 Memorial Drive, Cambridge, MA 02139 USA
| | - Carol Chan
- Diagnostics for All, Inc., 840 Memorial Drive, Cambridge, MA 02139 USA
| | - David Garlock
- MC10 Inc., 10 Maguire Road, Bldg 3, Lexington, MA 02421 USA
| | - Scott Shaw
- MC10 Inc., 10 Maguire Road, Bldg 3, Lexington, MA 02421 USA
| | - Patrick D Beattie
- Diagnostics for All, Inc., 840 Memorial Drive, Cambridge, MA 02139 USA
| | | | - Nick Kubasti
- MC10 Inc., 10 Maguire Road, Bldg 3, Lexington, MA 02421 USA
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Abstract
Isothermal amplification of nucleic acids is a simple process that rapidly and efficiently accumulates nucleic acid sequences at constant temperature. Since the early 1990s, various isothermal amplification techniques have been developed as alternatives to polymerase chain reaction (PCR). These isothermal amplification methods have been used for biosensing targets such as DNA, RNA, cells, proteins, small molecules, and ions. The applications of these techniques for in situ or intracellular bioimaging and sequencing have been amply demonstrated. Amplicons produced by isothermal amplification methods have also been utilized to construct versatile nucleic acid nanomaterials for promising applications in biomedicine, bioimaging, and biosensing. The integration of isothermal amplification into microsystems or portable devices improves nucleic acid-based on-site assays and confers high sensitivity. Single-cell and single-molecule analyses have also been implemented based on integrated microfluidic systems. In this review, we provide a comprehensive overview of the isothermal amplification of nucleic acids encompassing work published in the past two decades. First, different isothermal amplification techniques are classified into three types based on reaction kinetics. Then, we summarize the applications of isothermal amplification in bioanalysis, diagnostics, nanotechnology, materials science, and device integration. Finally, several challenges and perspectives in the field are discussed.
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Affiliation(s)
- Yongxi Zhao
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University , Xianning West Road, Xi'an, Shaanxi 710049, China
| | - Feng Chen
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University , Xianning West Road, Xi'an, Shaanxi 710049, China
| | - Qian Li
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Lihua Wang
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China.,School of Life Science & Technology, ShanghaiTech University , Shanghai 200031, China
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Liu F, Liu H, Liao Y, Wei J, Zhou X, Xing D. Multiplex detection and genotyping of pathogenic bacteria on paper-based biosensor with a novel universal primer mediated asymmetric PCR. Biosens Bioelectron 2015; 74:778-85. [PMID: 26226347 DOI: 10.1016/j.bios.2015.06.054] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/21/2015] [Accepted: 06/23/2015] [Indexed: 01/06/2023]
Abstract
Traditionary multiplex asymmetric polymerase chain reaction (PCR) can be applied to detect multiplex target organisms simultaneously, but complex optimizations of primer concentrations and staggered additions of primers are required to achieve equal amplification of multiplex genes. To overcome this shortcoming, we propose a novel method based on multiplex asymmetric PCR and paper-based nucleic acid diagnostics (PBNAD). In the asymmetric PCR, a universal primer was introduced to break the bottlenecks of low sensitivity and self-inhibition among different sets of primers. Amplification using the novel multiplex asymmetric PCR boosted the quantity of single-stranded amplicons, and the amplified products contained the same sequence at the 5' end. Therefore, only one gold nanoparticle-based signal probe was needed for the simultaneous detection of three genes using the PBNAD platform, and the detection signals could be observed with the naked eye. With this highly efficient, novel multiplex asymmetric PCR, as little as 1 pg/μL genomic DNA can be detected. This method can also be applied to genotyping for reliable epidemiological investigations. This proof-of-concept study highlights the potential of the PBNAD platform for cost- and labor-effective applications in the detection of pathogenic bacteria.
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Affiliation(s)
- Fang Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Hongxing Liu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Yuhui Liao
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Jitao Wei
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Xiaoming Zhou
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China.
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China.
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Noor MO, Hrovat D, Moazami-Goudarzi M, Espie GS, Krull UJ. Ratiometric fluorescence transduction by hybridization after isothermal amplification for determination of zeptomole quantities of oligonucleotide biomarkers with a paper-based platform and camera-based detection. Anal Chim Acta 2015; 885:156-65. [PMID: 26231901 DOI: 10.1016/j.aca.2015.05.026] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 05/08/2015] [Accepted: 05/14/2015] [Indexed: 11/27/2022]
Abstract
Paper is a promising platform for the development of decentralized diagnostic assays owing to the low cost and ease of use of paper-based analytical devices (PADs). It can be challenging to detect on PADs very low concentrations of nucleic acid biomarkers of lengths as used in clinical assays. Herein we report the use of thermophilic helicase-dependent amplification (tHDA) in combination with a paper-based platform for fluorescence detection of probe-target hybridization. Paper substrates were patterned using wax printing. The cellulosic fibers were chemically derivatized with imidazole groups for the assembly of the transduction interface that consisted of immobilized quantum dot (QD)-probe oligonucleotide conjugates. Green-emitting QDs (gQDs) served as donors with Cy3 as the acceptor dye in a fluorescence resonance energy transfer (FRET)-based transduction method. After probe-target hybridization, a further hybridization event with a reporter sequence brought the Cy3 acceptor dye in close proximity to the surface of immobilized gQDs, triggering a FRET sensitized emission that served as an analytical signal. Ratiometric detection was evaluated using both an epifluorescence microscope and a low-cost iPad camera as detectors. Addition of the tHDA method for target amplification to produce sequences of ∼100 base length allowed for the detection of zmol quantities of nucleic acid targets using the two detection platforms. The ratiometric QD-FRET transduction method not only offered improved assay precision, but also lowered the limit of detection of the assay when compared with the non-ratiometric QD-FRET transduction method. The selectivity of the hybridization assays was demonstrated by the detection of single nucleotide polymorphism.
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Affiliation(s)
- M Omair Noor
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada
| | - David Hrovat
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada
| | - Maryam Moazami-Goudarzi
- Department of Cell and Systems Biology, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada
| | - George S Espie
- Department of Cell and Systems Biology, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada; Department of Biology, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada
| | - Ulrich J Krull
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada.
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Wei J, Liu H, Liu F, Zhu M, Zhou X, Xing D. Miniaturized paper-based gene sensor for rapid and sensitive identification of contagious plant virus. ACS APPLIED MATERIALS & INTERFACES 2014; 6:22577-84. [PMID: 25412341 DOI: 10.1021/am506695g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Plant viruses cause significant production and economic losses in the agricultural industry worldwide. Rapid and early identification of contagious plant viruses is an essential prerequisite for the effective control of further spreading of infection. In this work, we describe a miniaturized paper-based gene sensor for the rapid and sensitive identification of a contagious plant virus. Our approach makes use of hybridization-mediated target capture based on a miniaturized lateral flow platform and gold nanoparticle colorimetric probes. The captured colorimetric probes on the test line and control line of the gene sensor produce characteristic red bands, enabling visual detection of the amplified products within minutes without the need for sophisticated instruments or the multiple incubation and washing steps performed in most other assays. Quantitative analysis is realized by recording the optical intensity of the test line. The sensor was used successfully for the identification of banana bunchy top virus (BBTV). The detection limit was 0.13 aM of gene segment, which is 10 times higher than that of electrophoresis and provides confirmation of the amplified products. We believe that this simple, rapid, and sensitive bioactive platform has great promise for warning against plant diseases in agricultural production.
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Affiliation(s)
- Jitao Wei
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University , Guangzhou 510631, China
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Nair P, Zhang Q, Brennan JD. A perspective on point-of-care tests to detect eosinophilic bronchitis. J Asthma 2014; 52:254-61. [PMID: 25272185 DOI: 10.3109/02770903.2014.966110] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Approximately 50% of asthma exacerbations and a third of COPD exacerbations are associated with an eosinophilic bronchitis. Quantitative cell counts reliably identify the number of eosinophils in sputum and treatment strategies that are guided by sputum eosinophil counts lead to significantly better outcomes than strategies guided by conventional assessments of symptoms and airflow. However, cell counts are not widely available and the results are not available in real time. Similarly, more sophisticated detection methods using immunoassays or genetic analysis via polymerase chain reaction are too costly and thus not amenable to rapid point-of-care diagnosis. Blood eosinophil counts and fraction of exhaled nitric oxide correlate poorly with airway eosinophilia, particularly in patients with severe airway diseases who are on corticosteroid therapy. Point of care assessments of eosinophil-specific activity may be provided by breathomics that employ metabolomics profiling of volatile compounds in breath. However, it is too early to decide if this would provide quantitative data to monitor therapy and disease activities longitudinally. Herein we provide a perspective on the potential for developing simple point-of-care tests with special emphasis on the potential for a bio-active paper diagnostic test to quantitatively assay the amount of eosinophil peroxidase in sputum samples by employing different types of detection systems.
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Affiliation(s)
- Parameswaran Nair
- Department of Medicine, St Joseph's Healthcare and McMaster University , Hamilton, Ontario , Canada and
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50
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Zhang F, Wang R, Wang L, Wu J, Ying Y. Tracing phosphate ions generated during DNA amplification and its simple use for visual detection of isothermal amplified products. Chem Commun (Camb) 2014; 50:14382-5. [DOI: 10.1039/c4cc06973k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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