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Jiang Y, Yin C, Mo J, Wang X, Wang T, Li G, Zhou Q. Recent progress in carbon dots for anti-pathogen applications in oral cavity. Front Cell Infect Microbiol 2023; 13:1251309. [PMID: 37780847 PMCID: PMC10540312 DOI: 10.3389/fcimb.2023.1251309] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 08/28/2023] [Indexed: 10/03/2023] Open
Abstract
Background Oral microbial infections are one of the most common diseases. Their progress not only results in the irreversible destruction of teeth and other oral tissues but also closely links to oral cancers and systemic diseases. However, traditional treatment against oral infections by antibiotics is not effective enough due to microbial resistance and drug blocking by oral biofilms, along with the passive dilution of the drug on the infection site in the oral environment. Aim of review Besides the traditional antibiotic treatment, carbon dots (CDs) recently became an emerging antimicrobial and microbial imaging agent because of their excellent (bio)physicochemical performance. Their application in treating oral infections has received widespread attention, as witnessed by increasing publication in this field. However, to date, there is no comprehensive review available yet to analyze their effectiveness and mechanism. Herein, as a step toward addressing the present gap, this review aims to discuss the recent advances in CDs against diverse oral pathogens and thus propose novel strategies in the treatment of oral microbial infections. Key scientific concepts of review In this manuscript, the recent progress of CDs against oral pathogens is summarized for the first time. We highlighted the antimicrobial abilities of CDs in terms of oral planktonic bacteria, intracellular bacteria, oral pathogenic biofilms, and fungi. Next, we introduced their microbial imaging and detection capabilities and proposed the prospects of CDs in early diagnosis of oral infection and pathogen microbiological examination. Lastly, we discussed the perspectives on clinical transformation and the current limitations of CDs in the treatment of oral microbial infections.
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Affiliation(s)
- Yuying Jiang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Chuqiang Yin
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Jianning Mo
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Xiaoyu Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Ting Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Guotai Li
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Qihui Zhou
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, China
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2
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Chen L, Ma M, Zou M, Zhao L, Ou M, Geng Y, Li C, Shen H, Chen Y. Rapid and portable bunyavirus SFTSV RNA testing utilizing catalytic hairpin assembly coupled with lateral flow immunoassay. Microbiol Spectr 2023; 11:e0214423. [PMID: 37681992 PMCID: PMC10581038 DOI: 10.1128/spectrum.02144-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 07/06/2023] [Indexed: 09/09/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a prevalent, life-threatening, emergent infectious disease. Currently, reverse transcription-polymerase chain reaction is the gold standard for diagnosing SFTS virus (SFTSV) infection, which requires sophisticated equipment and professional personnel that are frequently unavailable in most SFTS endemic rural areas. Here, we reported a simple, rapid nucleic acid amplification system that combined the catalytic hairpin assembly (CHA) with a lateral flow immunoassay (LFIA) strip-based detection method for SFTSV detection. The detection of SFTSV RNA could be realized by generation of H1-H2 hybrid duplexes labeled with biotin and digoxin, which subsequently added to the LFIA test strips containing streptavidin conjugated with Alexa Fluor 647 as well as anti-digoxin antibodies. Our CHA-based LFIA assay offered high amplification efficiency and specificity with a detection limit of 1 aM. Crucially, this method enabled stable detection of 500 copies/mL of SFTSV within 30 min using clinical serum samples. Therefore, our CHA-based LFIA approach provided a potential useful tool to facilitate early and precise diagnosis of SFTS patients in poorly resourced SFTS endemic areas.IMPORTANCESevere fever with thrombocytopenia syndrome (SFTS) is an emerging and potentially fatal infectious disease prevalent in China. Here we report a simple, rapid nucleic acid amplification system, the catalytic hairpin assembly (CHA) in conjunction with a lateral flow immunoassay (LFIA) strip-based detection method for SFTS virus detection, which demonstrated high amplification efficiency and specificity with limit of detection of 1 aM. Most importantly, we also validate our CHA-based LFIA assay using the clinical serum samples, which was fully compatible with reverse transcription-PCR results. Therefore, our strategy provides a potential useful tool to facilitate early and precise diagnosis of SFTS patients especially in poorly resourced SFTS endemic areas.
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Affiliation(s)
- Lin Chen
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Mengyin Ma
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Mingyuan Zou
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Liwei Zhao
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Mingrong Ou
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yu Geng
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Chuang Li
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Han Shen
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuxin Chen
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
- Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China
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3
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Martino S, Tammaro C, Misso G, Falco M, Scrima M, Bocchetti M, Rea I, De Stefano L, Caraglia M. microRNA Detection via Nanostructured Biochips for Early Cancer Diagnostics. Int J Mol Sci 2023; 24:7762. [PMID: 37175469 PMCID: PMC10178165 DOI: 10.3390/ijms24097762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/15/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
MicroRNA (miRNA) are constituted of approximately 22 nucleotides and play an important role in the regulation of many physiological functions and diseases. In the last 10 years, an increasing interest has been recorded in studying the expression profile of miRNAs in cancer. Real time-quantitative polymerase chain reaction (RT-qPCR), microarrays, and small RNA sequencing represent the gold standard techniques used in the last 30 years as detection methods. The advent of nanotechnology has allowed the fabrication of nanostructured biosensors which are widely exploited in the diagnostic field. Nanostructured biosensors offer many advantages: (i) their small size allows the construction of portable, wearable, and low-cost products; (ii) the large surface-volume ratio enables the loading of a great number of biorecognition elements (e.g., probes, receptors); and (iii) direct contact of the recognition element with the analyte increases the sensitivity and specificity inducing low limits of detection (LOD). In this review, the role of nanostructured biosensors in miRNA detection is explored, focusing on electrochemical and optical sensing. In particular, four types of nanomaterials (metallic nanoparticles, graphene oxide, quantum dots, and nanostructured polymers) are reported for both detection strategies with the aim to show their distinct properties and applications.
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Affiliation(s)
- Sara Martino
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.M.); (C.T.); (M.F.); (M.B.); (M.C.)
- Unit of Naples, National Research Council, Institute of Applied Sciences and Intelligent Systems, 80138 Naples, Italy;
| | - Chiara Tammaro
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.M.); (C.T.); (M.F.); (M.B.); (M.C.)
| | - Gabriella Misso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.M.); (C.T.); (M.F.); (M.B.); (M.C.)
| | - Michela Falco
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.M.); (C.T.); (M.F.); (M.B.); (M.C.)
- Laboratory of Molecular and Precision Oncology, Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy;
| | - Marianna Scrima
- Laboratory of Molecular and Precision Oncology, Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy;
| | - Marco Bocchetti
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.M.); (C.T.); (M.F.); (M.B.); (M.C.)
- Laboratory of Molecular and Precision Oncology, Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy;
| | - Ilaria Rea
- Unit of Naples, National Research Council, Institute of Applied Sciences and Intelligent Systems, 80138 Naples, Italy;
| | - Luca De Stefano
- Unit of Naples, National Research Council, Institute of Applied Sciences and Intelligent Systems, 80138 Naples, Italy;
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.M.); (C.T.); (M.F.); (M.B.); (M.C.)
- Laboratory of Molecular and Precision Oncology, Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy;
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Sardaru MC, Marangoci NL, Palumbo R, Roviello GN, Rotaru A. Nucleic Acid Probes in Bio-Imaging and Diagnostics: Recent Advances in ODN-Based Fluorescent and Surface-Enhanced Raman Scattering Nanoparticle and Nanostructured Systems. Molecules 2023; 28:molecules28083561. [PMID: 37110795 PMCID: PMC10141977 DOI: 10.3390/molecules28083561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Raman nanoparticle probes are a potent class of optical labels for the interrogation of pathological and physiological processes in cells, bioassays, and tissues. Herein, we review the recent advancements in fluorescent and Raman imaging using oligodeoxyribonucleotide (ODN)-based nanoparticles and nanostructures, which show promise as effective tools for live-cell analysis. These nanodevices can be used to investigate a vast number of biological processes occurring at various levels, starting from those involving organelles, cells, tissues, and whole living organisms. ODN-based fluorescent and Raman probes have contributed to the achievement of significant advancements in the comprehension of the role played by specific analytes in pathological processes and have inaugurated new possibilities for diagnosing health conditions. The technological implications that have emerged from the studies herein described could open new avenues for innovative diagnostics aimed at identifying socially relevant diseases like cancer through the utilization of intracellular markers and/or guide surgical procedures based on fluorescent or Raman imaging. Particularly complex probe structures have been developed within the past five years, creating a versatile toolbox for live-cell analysis, with each tool possessing its own strengths and limitations for specific studies. Analyzing the literature reports in the field, we predict that the development of ODN-based fluorescent and Raman probes will continue in the near future, disclosing novel ideas on their application in therapeutic and diagnostic strategies.
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Affiliation(s)
- Monica-Cornelia Sardaru
- "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Centre of Advanced Research in Bionanoconjugates and Biopolymers, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
- The Research Institute of the University of Bucharest (ICUB), 90 Sos. Panduri, 050663 Bucharest, Romania
| | - Narcisa-Laura Marangoci
- "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Centre of Advanced Research in Bionanoconjugates and Biopolymers, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| | - Rosanna Palumbo
- Institute of Biostructures and Bioimaging, Italian National Council for Research (IBB-CNR), Area di Ricerca Site and Headquarters, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Giovanni N Roviello
- Institute of Biostructures and Bioimaging, Italian National Council for Research (IBB-CNR), Area di Ricerca Site and Headquarters, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Alexandru Rotaru
- "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Centre of Advanced Research in Bionanoconjugates and Biopolymers, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
- Institute for Research, Innovation and Technology Transfer, UPS "Ion Creanga", Ion Creanga Str. 1, MD2069 Chisinau, Moldova
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Yang X, Liu X, Kang Q, Qi Y, Du Y, Xiang H. A novel DNA detection using spherical identification probe and strand displacement reaction-initiated silver nanocluster switch. ANAL SCI 2023; 39:275-284. [PMID: 36607557 PMCID: PMC9816546 DOI: 10.1007/s44211-022-00243-y] [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: 09/26/2022] [Accepted: 11/23/2022] [Indexed: 01/07/2023]
Abstract
Herein, we developed a novel fluorescent assay using spherical identification probes and toehold-mediated strand displacement reaction-initiated silver nanoclusters (AgNCs) "on-off" signal switch. In this strategy, the target was captured by the spherical probes to induce the activity of exonuclease III (Exo III), catalyzing the cyclic cleavage of substrates to produce a mass of trigger strands. After magnetic bead separation, the intermediates in the supernatant activated downstream toehold-mediated strand displacement reaction to change the structure of silver nanocluster templates, leading to fluorescence intensity reduction. Furthermore, it is demonstrated that the application of spherical identification probes could reduce the signal leakage and the limit of detection. In addition, AgNCs with perfect optical property were ingeniously combined to realize signal output, which reduced the cost and time of synthesis. Under the optimal conditions, the sensing method displayed a good linear range from 250 pM to 25 nM with a detectable minimum concentration of 250 pM. And the practical application potential in complex biological matrices was also evaluated. Considering these advantages, this constructed strategy opens a new path for nucleic acid detection with better performance. A simple, label- and hairpin-free fluorescent system based on spherical identification probe and toehold-mediated strand displacement reaction-initiated silver nanoclusters (AgNCs) "on-off" signal switch was successfully constructed to detect target DNA.
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Affiliation(s)
- Xiaoyan Yang
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
| | - Xiaoyu Liu
- Department of Clinical Laboratory, Guang’an People’ Hospital, Guang’an, People’s Republic of China
| | - Qi Kang
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
| | - Yinxiao Qi
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
| | - Yumin Du
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
| | - Hua Xiang
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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A ratiometric fluorescent biosensor based on self-fluorescent MOF and target-triggered rolling circle amplification for sensitive detection of exosome-derived miRNA. Anal Chim Acta 2022; 1221:340136. [DOI: 10.1016/j.aca.2022.340136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 06/28/2022] [Indexed: 12/15/2022]
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7
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Li G, Ge S, Niu P, Zhang J, Mao Y, Wang Y, Sun A. Simultaneous detection of circulating tumor DNAs using a SERS-based lateral flow assay biosensor for point-of-care diagnostics of head and neck cancer. BIOMEDICAL OPTICS EXPRESS 2022; 13:4102-4117. [PMID: 36032568 PMCID: PMC9408245 DOI: 10.1364/boe.463612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/17/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Circulating tumor DNA (ctDNA) has recently emerged as an ideal target for biomarker analytes. Thus, the development of rapid and ultrasensitive ctDNA detection methods is essential. In this study, a high-throughput surface-enhanced Raman scattering (SERS)-based lateral flow assay (LFA) strip is proposed. The aim of this method is to achieve accurate quantification of TP53 and PIK3CA E545K, two types of ctDNAs associated with head and neck squamous cell carcinoma (HNSCC), particularly for point-of-care testing (POCT). Raman reporters and hairpin DNAs are used to functionalize the Pd-Au core-shell nanorods (Pd-AuNRs), which serve as the SERS probes. During the detection process, the existence of targets could open the hairpins on the surface of Pd-AuNRs and trigger the first step of catalytic hairpin assembly (CHA) amplification. The next stage of CHA amplification is initiated by the hairpins prefixed on the test lines, generating numerous "hot spots" to enhance the SERS signal significantly. By the combination of high-performing SERS probes and a target-specific signal amplification strategy, TP53 and PIK3CA E545K are directly quantified in the range of 100 aM-1 nM, with the respective limits of detection (LOD) calculated as 33.1 aM and 20.0 aM in the PBS buffer and 37.8 aM and 23.1 aM in human serum, which are significantly lower than for traditional colorimetric LFA methods. The entire detection process is completed within 45 min, and the multichannel design realizes the parallel detection of multiple groups of samples. Moreover, the analytical performance is validated, including reproducibility, uniformity, and specificity. Finally, the SERS-LFA biosensor is employed to analyze the expression levels of TP53 and PIK3CA E545K in the serum of patients with HNSCC. The results are verified as consistent with those of qRT-PCR. Thus, the SERS-LFA biosensor can be considered as a noninvasive liquid biopsy assay for clinical cancer diagnosis.
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Affiliation(s)
- Guang Li
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, 225001, P. R., China
| | - Shengjie Ge
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, 225001, P. R., China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, P. R., China
| | - Ping Niu
- Departments of Otolaryngology, Qingzhou People's Hospital, Qingzhou, 262500, P. R., China
| | - Jianyou Zhang
- Department of Anesthesiology, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, 225001, P. R., China
| | - Yu Mao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, P. R., China
| | - Youwei Wang
- Department of Neurosurgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, 225001, P. R., China
| | - Aidong Sun
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, 225001, P. R., China
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Tian Z, Zhou C, Zhang C, Wu M, Duan Y, Li Y. Recent advances of catalytic hairpin assembly and its application in bioimaging and biomedicine. J Mater Chem B 2022; 10:5303-5322. [PMID: 35766024 DOI: 10.1039/d2tb00815g] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic hairpin assembly (CHA) appears to be a particularly appealing nucleic acid circuit because of its powerful amplification capability, simple protocols, and enzyme-free and isothermal conditions, and can combine with various signal output modes for the biosensing of various analytes. Especially in the last five years, vast CHA related studies have sprung up. With the deep exploration of the CHA mechanism, some novel and excellent CHA strategies have been proposed; meanwhile the CHA cascade strategies with various amplification techniques further improve the analysis performance. Furthermore, diverse CHA based biosensors have been tactfully engineered and extensively employed in imaging applications in living cells and in vivo ascribed to its gentle reaction, efficient amplification and universality. Hence, we present a comprehensive and systematic summary of the progress in CHA and its application in bioimaging and biomedicine to date. At first, we introduced the mechanism and diversification of CHA in detail, including the newly developed CHA and its ingenious combination with a variety of other technologies. Concurrently, we summarized the latest application progress of different CHA strategies in bioimaging and biomedicine, highlighting the merits and drawbacks of representative approaches. Finally, we put forward some views on the challenges and prospects of CHA in bioimaging and biomedicine in the future.
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Affiliation(s)
- Ziyi Tian
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
| | - Chen Zhou
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
| | - Chuyan Zhang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
| | - Mengfan Wu
- Research Center of Analytical Instrumentation, School of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
| | - Yixiang Duan
- Research Center of Analytical Instrumentation, School of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
| | - Yongxin Li
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
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Ma Y, Mei H, Li Y, Zhou P, Mao G, Wang H, Wang X. A novel raiometric fluorescence probe based on silicon quantum dots and copper nanoclusters for visual assay of l-cysteine in milks. Food Chem 2022; 379:132155. [DOI: 10.1016/j.foodchem.2022.132155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/01/2022] [Accepted: 01/11/2022] [Indexed: 12/17/2022]
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10
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Programming a DNA tetrahedral nanomachine as an integrative tool for intracellular microRNA biosensing and stimulus-unlocked target regulation. Mater Today Bio 2022; 15:100276. [PMID: 35711289 PMCID: PMC9194454 DOI: 10.1016/j.mtbio.2022.100276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/26/2022] [Accepted: 04/30/2022] [Indexed: 11/22/2022]
Abstract
The synchronous detection and regulation of microRNAs (miRNAs) are essential for the early tumor diagnosis and treatment but remains a challenge. An integrative DNA tetrahedral nanomachine was self-assembled for sensitive detection and negative feedback regulation of intracellular miRNAs. This nanomachine comprised a DNA tetrahedron nanostructure as the framework, and a miRNA inhibitor-controlled allosteric DNAzyme as the core. The DNA tetrahedron brought the DNAzyme and the substrate in spatial proximity and facilitated the cellular uptake of DNAzyme. In allosteric regulation of DNAzyme, the locked tetrahedral DNAzyme (L-tetra-D) and active tetrahedral DNAzyme (A-Tetra-D) were controlled by miRNA inhibitor. The combination of miRNA inhibitor and target could trigger the conformational change from L-tetra-D to A-Tetra-D. A-Tetra-D cleaved the substrate and released fluorescence for intracellular miRNA biosensing. The DNA tetrahedral nanomachine showed excellent sensitivity (with detection limit down to 0.77 pM), specificity (with one-base mismatch discrimination), biocompatibility and stability. Simultaneously, miRNA stimulus-unlocked inhibitor introduced by our nanomachine exhibited the synchronous regulation of target cells, of which regulatory performance has been verified by the upregulated levels of downstream genes/proteins and the increased cellular apoptosis. Our study demonstrated that the DNA tetrahedral nanomachine is a promising biosense-and-treat tool for the synchronous detection and regulation of intracellular miRNA, and is expected to be applied in the early diagnosis and tailored management of cancers.
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11
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Catalytic hairpin assembly as cascade nucleic acid circuits for fluorescent biosensor: design, evolution and application. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Photoelectrochemical detection of microRNAs based on target-triggered self-assembly of energy band position-matched CdS QDs and C 3N 4 nanosheets. Mikrochim Acta 2022; 189:65. [PMID: 35064308 DOI: 10.1007/s00604-022-05168-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/27/2021] [Indexed: 02/06/2023]
Abstract
An ultrasensitive photochemical biosensor based on the target miRNA-triggered catalytic hairpin assembly (CHA) reaction between Au nanoparticles (AuNPs)/C3N4 nanosheets and CdS quantum dots (QDs) was developed for the determination of miRNAs. Firstly, AuNPs/C3N4 nanosheets were immobilized onto a working glassy carbon electrode. Then, the hairpin probe 1 (H1) was loaded through Au-S bonding. Afterward, the unbound sites were blocked with 6-mercaptohexanol to avoid nonspecific adsorption. In the presence of the target miRNA, the CHA reaction between the H1 and hairpin probe 2-CdS QDs (H2-CdS QDs) could be triggered. As a result, the AuNPs/C3N4 nanosheet and CdS QDs were linked by the double helix structure H1-H2. Unlike the other CHA reactions, H2 used in this work is longer than H1 so that the AuNPs/C3N4 nanosheets could touch the CdS QDs. Given the matched energy band positions between the C3N4 nanosheet and CdS QDs, a strong photocurrent could be obtained after the CHA reaction was triggered by the target miRNA. In addition, p-type C3N4 nanosheets and n-type CdS QDs presented reduction photocurrents and oxidation photocurrents, respectively. Therefore, the photocurrents were vectors in this design that can eliminate the interference of nonspecific adsorption and avoid the generation of false-positive signals. Under the optimal conditions, the limit of detection was 92 aM. The constructed photoelectrochemical biosensor showed good reproducibility and selectivity in the analysis of serum samples, which indicates its great prospects in disease diagnostics and bioanalysis.
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Wu Y, Fu C, Shi W, Chen J. Recent advances in catalytic hairpin assembly signal amplification-based sensing strategies for microRNA detection. Talanta 2021; 235:122735. [PMID: 34517602 DOI: 10.1016/j.talanta.2021.122735] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022]
Abstract
Accumulative evidences have indicated that abnormal expression of microRNAs (miRNAs) is closely associated with many health disorders, making them be regarded as potentialbiomarkers for early clinical diagnosis. Therefore, it is extremely necessary to develop a highly sensitive, specific and reliable approach for miRNA analysis. Catalytic hairpin assembly (CHA) signal amplification is an enzyme-free toehold-mediated strand displacement method, exhibiting significant potential in improving the sensitivity of miRNA detection strategies. In this review, we first describe the potential of miRNAs as disease biomarkers and therapeutics, and summarize the latest advances in CHA signal amplification-based sensing strategies for miRNA monitoring. We describe the characteristics and mechanism of CHA signal amplification and classify the CHA-based miRNA sensing strategies into several categories based on the "signal conversion substance", including fluorophores, enzymes, nanomaterials, and nucleotide sequences. Sensing performance, limit of detection, merits and disadvantages of these miRNA sensing strategies are discussed. Moreover, the current challenges and prospects are also presented.
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Affiliation(s)
- Yan Wu
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China.
| | - Cuicui Fu
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China
| | - Wenbing Shi
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China
| | - Jinyang Chen
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China.
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Liu L, Han Z, An F, Gong X, Zhao C, Zheng W, Mei L, Zhou Q. Aptamer-based biosensors for the diagnosis of sepsis. J Nanobiotechnology 2021; 19:216. [PMID: 34281552 PMCID: PMC8287673 DOI: 10.1186/s12951-021-00959-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/09/2021] [Indexed: 12/15/2022] Open
Abstract
Sepsis, the syndrome of infection complicated by acute organ dysfunction, is a serious and growing global problem, which not only leads to enormous economic losses but also becomes one of the leading causes of mortality in the intensive care unit. The detection of sepsis-related pathogens and biomarkers in the early stage plays a critical role in selecting appropriate antibiotics or other drugs, thereby preventing the emergence of dangerous phases and saving human lives. There are numerous demerits in conventional detection strategies, such as high cost, low efficiency, as well as lacking of sensitivity and selectivity. Recently, the aptamer-based biosensor is an emerging strategy for reasonable sepsis diagnosis because of its accessibility, rapidity, and stability. In this review, we first introduce the screening of suitable aptamer. Further, recent advances of aptamer-based biosensors in the detection of bacteria and biomarkers for the diagnosis of sepsis are summarized. Finally, the review proposes a brief forecast of challenges and future directions with highly promising aptamer-based biosensors.
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Affiliation(s)
- Lubin Liu
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Zeyu Han
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Fei An
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Xuening Gong
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Chenguang Zhao
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Weiping Zheng
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Li Mei
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Qihui Zhou
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China.
- School of Stomatology, Qingdao University, Qingdao, 266003, China.
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