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Zhou B, Khan IM, Ding X, Niazi S, Zhang Y, Wang Z. Fluorescent DNA-Silver nanoclusters in food safety detection: From synthesis to application. Talanta 2024; 273:125834. [PMID: 38479031 DOI: 10.1016/j.talanta.2024.125834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 04/09/2024]
Abstract
In recent years, the conventional preparation of silver nanoclusters (AgNCs) has attracted much attention due to their ultra-small size, tunable fluorescence, easy-to-engineer, as well as biocompatible material. Moreover, its great affinity towards cytosine bases on single-stranded DNA has led to the construction of biosensors, especially aptamers, for a broad variety of applications in food safety and environmental protection. In past years, numerous researchers paid attention to the construction of AgNCs aptasensor. Therefore, this review will be an effort to summarize the synthetic strategy along with the influences of factors on synthesis, categorize the sensing mechanism of aptamer-functionalized AgNCs biosensors, as well as their specific applications in food safety detection including heavy metal, toxin, and foodborne pathogenic bacteria. Furthermore, a brief conclusion and outlook regarding the prospects and challenges of their applications in food safety were drawn in line with the developments in DNA-AgNCs.
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Affiliation(s)
- Bingxuan Zhou
- State Key Laboratory of Food Science and Resources, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China
| | - Imran Mahmood Khan
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, 315100, China.
| | - Xiaowei Ding
- State Key Laboratory of Food Science and Resources, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China
| | - Sobia Niazi
- State Key Laboratory of Food Science and Resources, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu, 610106, PR China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China; School of Food Science and Technology, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China; International Joint Laboratory on Food Safety, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China; Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Lihu Road 1800, Wuxi, 214122, PR China; Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu, 610106, PR China.
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2
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Lan Y, He Q, Ma Y, Wei Y, Wei Z, Dong C. Dual-signal fluorescence aptasensing system for adenosine triphosphate assisting by MoS 2 nanosheets. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123444. [PMID: 37806241 DOI: 10.1016/j.saa.2023.123444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/10/2023]
Abstract
Adenosine triphosphate (ATP) has an irreplaceable role in the maintenance of many physiological processes and biological functions, and can be employed as an indicator of many diseases. In this work, we constructed a simple and sensitive dual-signal fluorescence aptasensing system for ATP detection with berberine as the signal reporter, ATP-aptamer as the recognition unit and MoS2 nanosheets as the signal amplification. In the absence of ATP, berberine can bind to the single-stranded DNA (ssDNA) of ATP-aptamer and selectively assemble on the surface of MoS2 nanosheets, leading to the fluorescence quenching of bererbine based on the fluorescence resonance energy transfer, denoted by "OFF". Accordingly, the fluorescence anisotropy signal is enhanced due to restriction on rotate of the fluorescent probe and denoted as "ON". Conversely, in the presence of ATP, it specifically interacts with ATP-aptamer and switches the free-curled single-stranded of ATP-aptamer to the G-quadruplex structure of ATP-aptamer/ATP/berberine, causing the detachment from the surface of the MoS2 nanosheet. Accordingly, the fluorescence signal was reversed from "OFF" to "ON", and the fluorescence anisotropy signal was turned "ON" to "OFF". The developed aptasensing system achieved a desirable sensitivity of 40.0 nM with fluorescent mode, and of 20.8 nM with fluorescent anisotropic mode. The sensing system has demonstrated high quality detection performance in human serum sample, and obtained the satisfactory recovery results for fluorescent of 93.0-108.5%, fluorescent anisotropic of 96.4-106.7%.
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Affiliation(s)
- Yifeng Lan
- Department of Forensic Medicine, Shanxi Medical University, Jinzhong 030001, China; Institute of Environmental Science, Shanxi University, Taiyuan 030031, China
| | - Qiang He
- Department of Forensic Medicine, Shanxi Medical University, Jinzhong 030001, China
| | - Yingqi Ma
- Department of Forensic Medicine, Shanxi Medical University, Jinzhong 030001, China
| | - Yanli Wei
- Institute of Environmental Science, Shanxi University, Taiyuan 030031, China.
| | - Zhiwen Wei
- Department of Forensic Medicine, Shanxi Medical University, Jinzhong 030001, China
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030031, China
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3
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Yang H, Lv L, Niu M, Zhang D, Guo Z. A Label-Free Aptasensor for Turn-On Fluorescent Detection of Aflatoxin B1 Based on an Aggregation-Induced-Emission-Active Probe and Single-Walled Carbon Nanohorns. Foods 2023; 12:4332. [PMID: 38231791 DOI: 10.3390/foods12234332] [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: 10/22/2023] [Revised: 11/20/2023] [Accepted: 11/25/2023] [Indexed: 01/19/2024] Open
Abstract
The determination of the aflatoxin B1 (AFB1) content has received widespread attention in the context of food safety, which is a global public health issue. Accordingly, a label-free and turn-on fluorescent AFB1 determination method is developed herein with an ss-DNA aptamer as the recognition element, 4, 4-(1E,1E)-2, 2-(anthracene-9, 10-diyl) bis(ethene-2, 1-diyl) bis(N, N, N-trimethylbenzenaminium iodide) (DSAI) as the aggregation-induced emission (AIE) fluorescent probe, and single-walled carbon nanohorns (SWCNHs) as the selective part with a fluorescence quenching effect. In the presence of AFB1, the AFB1-specific aptamer undergoes a structural transformation and switches from being a random helix to a folded structure. DSAI's fluorescence is protected as a result of the resistance of the transformed aptamer adsorbed on the SWCNHs' surface. Because DSAI's fluorescence is not quenchable, the fluorescence intensity is calculated as a function of the AFB1 concentration. By simply mixing DSAI, aptamer, AFB1 samples, and SWCNHs, the method can be carried out in 2 h, with a limit of detection (LOD) of 1.83 ng/mL. It has a high selectivity in the presence of other mycotoxins, and its performance is confirmed in soybean sauce with a known concentration of AFB1. The LOD was 1.92 ng/mL in the soy sauce samples and the recovery ranged from 95 to 106%, implying that the presented aptasensor has great potential for food analysis.
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Affiliation(s)
- Huanhuan Yang
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing 163000, China
- College of Life Science, Changchun Normal University, Changchun 130032, China
| | - Lei Lv
- College of Agriculture, Yanbian University, Yanji 133002, China
| | - Mengyu Niu
- College of Agriculture, Yanbian University, Yanji 133002, China
| | - Dongjie Zhang
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing 163000, China
| | - Zhijun Guo
- College of Agriculture, Yanbian University, Yanji 133002, China
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Anbiaee G, Khoshbin Z, Zahraee H, Ramezani M, Alibolandi M, Abnous K, Taghdisi SM. Exonuclease-based aptasensors: Promising for food safety and diagnostic aims. Talanta 2023; 259:124500. [PMID: 37001398 DOI: 10.1016/j.talanta.2023.124500] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/21/2023] [Accepted: 03/28/2023] [Indexed: 04/07/2023]
Abstract
As of today's requirement, developing cost-effective smart sensing tools with ultrahigh sensitivity for food safety insurance is of special importance. For this purpose, aptamer-based biosensors (aptasensors) powered by the superiorities of the recycling signal amplification strategies have been expanded especially. Target recycling supported by enzymes is an appealing approach for implementing signal amplification. As the supreme biocatalyst enzymes, exonucleases can inaugurate signal improvement by involving a single target in a process would result in appreciable repeating cycles of the cleavage of the phosphodiester bonds between the building blocks of the nucleic acid strands, and also, their terminals. Although there are diverse substances for catalyzing amplification strategies, including nanoparticles, carbon-based nanocomposites, and quantum dots (QDs), exonucleases are of superiority over them by simplifying the amplification process with no need for the complicated pre-treatment processes. The outstanding selectivity and great sensitivity of the aptasensors tuned by amplification potency of exonucleases nominate them as the promising sensing tools for label-free, ease-of-use, cost-effective, and real-time diagnosis of diverse targets. Here, we summarize the achievements and perspectives in the scientific branch of aptasensor design for the qualitative monitoring of diverse targets by cooperation of exonucleases with the conspicuous potential for the signal amplification. Finally, some results are expressed to provide a comprehensive viewpoint for developing novel nuclease-based aptasensors in the future.
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Affiliation(s)
- Ghasem Anbiaee
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Khoshbin
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Zahraee
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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5
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Nan Z, Liu H, Shi L, Zhu H, Chen J, Ilovitsh T, Wu D, Wan M, Feng Y. Ratiometric Fluorescent Detection of Ultrasound-Regulated ATP Release: An Ultrasound-Resistant Cu,N-Doped Carbon Nanosphere. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37365929 DOI: 10.1021/acsami.3c05720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Focused ultrasound, as a protocol of cancer therapy, might induce extracellular adenosine triphosphate (ATP) release, which could enhance cancer immunotherapy and be monitored as a therapeutic marker. To achieve an ATP-detecting probe resistant to ultrasound irradiation, we constructed a Cu/N-doped carbon nanosphere (CNS), which has two fluorescence (FL) emissions at 438 and 578 nm to detect ultrasound-regulated ATP release. The addition of ATP to Cu/N-doped CNS was conducted to recover the FL intensity at 438 nm, where ATP enhanced the FL intensity probably via intramolecular charge transfer (ICT) primarily and hydrogen-bond-induced emission (HBIE) secondarily. The ratiometric probe was sensitive to detect micro ATP (0.2-0.6 μM) with the limit of detection (LOD) of 0.068 μM. The detection of ultrasound-regulated ATP release by Cu,N-CNS/RhB showed that ATP release was enhanced by the long-pulsed ultrasound irradiation at 1.1 MHz (+37%, p < 0.01) and reduced by the short-pulsed ultrasound irradiation at 5 MHz (-78%, p < 0.001). Moreover, no significant difference in ATP release was detected between the control group and the dual-frequency ultrasound irradiation group (+4%). It is consistent with the results of ATP detection by the ATP-kit. Besides, all-ATP detection was developed to prove that the CNS had ultrasound-resistant properties, which means it could bear the irradiation of focused ultrasound in different patterns and detect all-ATP in real time. In the study, the ultrasound-resistant probe has the advantages of simple preparation, high specificity, low limit of detection, good biocompatibility, and cell imaging ability. It has great potential to act as a multifunctional ultrasound theranostic agent for simultaneous ultrasound therapy, ATP detection, and monitoring.
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Affiliation(s)
- Zhezhu Nan
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Hengyu Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Linrong Shi
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Hongrui Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Junjie Chen
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Tali Ilovitsh
- Department of Biomedical Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Daocheng Wu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Mingxi Wan
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Yi Feng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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Lin Y, Tao X, Gao S, Li N, Dai Z. Highly sensitive and stable fluorescent aptasensor based on an exonuclease III-assisted amplification strategy for ATP detection. Anal Biochem 2023:115210. [PMID: 37329966 DOI: 10.1016/j.ab.2023.115210] [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: 03/14/2023] [Revised: 06/07/2023] [Accepted: 06/07/2023] [Indexed: 06/19/2023]
Abstract
Fluctuations in intracellular adenosine triphosphate (ATP) concentration are closely associated with some cancer diseases. Thus, it is a worthwhile undertaking to predict sickness by monitoring changes in ATP levels. However, the detection limits of current fluorescent aptamer sensors for ATP detection are in the range of nmol L-1 to μmol L-1. It has become crucial to employ amplification strategies to increase the sensitivity of fluorescent aptamer sensors. In the current paper, a duplex hybrid aptamer probe was developed based on exonuclease III (Exo III)-catalyzed target recycling amplification for ATP detection. The target ATP forced the duplex probe configuration to change into a molecular beacon that can be hydrolyzed with Exo III to achieve the target ATP cycling to amplify the fluorescence signal. Significantly, many researchers ignore that FAM is a pH-sensitive fluorophore, leading to the fluorescence instability of FAM-modified probes in different pH buffers. The negatively charged ions on the surface of AuNPs were replaced by new ligands bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt (BSPP) to improve the drawback of FAM instability in alkaline solutions in this work. The aptamer probe was designed to eliminate the interference of other similar small molecules, showing specific selectivity and providing ultra-sensitive detection of ATP with detection limits (3σ) as low as 3.35 nM. Such detection limit exhibited about 4-500-fold better than that of the other amplification strategies for ATP detection. Thus, a relatively general high sensitivity detection system can be established according to the wide target adaptability of aptamers, which can form specific binding with different types of targets.
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Affiliation(s)
- Yushuang Lin
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Xuejiao Tao
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Suhan Gao
- School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, China
| | - Nan Li
- School of Chemistry, Tiangong University, Tianjin, 300387, China.
| | - Zhao Dai
- School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, China.
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7
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Fata F, Gabriele F, Angelucci F, Ippoliti R, Di Leandro L, Giansanti F, Ardini M. Bio-Tailored Sensing at the Nanoscale: Biochemical Aspects and Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23020949. [PMID: 36679744 PMCID: PMC9866807 DOI: 10.3390/s23020949] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/04/2023] [Accepted: 01/09/2023] [Indexed: 06/01/2023]
Abstract
The demonstration of the first enzyme-based electrode to detect glucose, published in 1967 by S. J. Updike and G. P. Hicks, kicked off huge efforts in building sensors where biomolecules are exploited as native or modified to achieve new or improved sensing performances. In this growing area, bionanotechnology has become prominent in demonstrating how nanomaterials can be tailored into responsive nanostructures using biomolecules and integrated into sensors to detect different analytes, e.g., biomarkers, antibiotics, toxins and organic compounds as well as whole cells and microorganisms with very high sensitivity. Accounting for the natural affinity between biomolecules and almost every type of nanomaterials and taking advantage of well-known crosslinking strategies to stabilize the resulting hybrid nanostructures, biosensors with broad applications and with unprecedented low detection limits have been realized. This review depicts a comprehensive collection of the most recent biochemical and biophysical strategies for building hybrid devices based on bioconjugated nanomaterials and their applications in label-free detection for diagnostics, food and environmental analysis.
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8
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Wu S, Zou S, Wang S, Li Z, Ma DL, Miao X. CTnI diagnosis in myocardial infarction using G-quadruplex selective Ir(Ⅲ) complex as effective electrochemiluminescence probe. Talanta 2022; 248:123622. [DOI: 10.1016/j.talanta.2022.123622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/17/2022] [Accepted: 05/26/2022] [Indexed: 10/18/2022]
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9
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Allosteric probe initiated triple signal recycles for sensitive analysis of adenosine triphosphate (ATP). J Anal Sci Technol 2022. [DOI: 10.1186/s40543-022-00341-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractAdenosine triphosphate (ATP) is closely associated with a variety of pathophysiological process, providing energy for cell activities. However, it remains a huge challenge to develop a simple and sensitive ATP detection method. Herein, we describe an ultrasensitive approach for ATP detection by using an elegantly designed allosteric probe to bind with targets and to induce DNAzyme assisted triple signal recycles. To establish the approach, the allosteric probe is designed with three functional parts to bind with target ATP, to induce signal recycles and to assist chain extension. After recognition of ATP by allosteric probe, the triple signal recycles are initiated, including (i) released ATP-allosteric probe complex unfolds H1 probe, constituting the first signal recycle; (ii) DNAzyme based cleavage induces the second signal recycle; and (iii) chain extension induced release of ATP is the third signal recycle. Through a series of experiments, the approach exhibits a favorable ATP detection performance and shows a high anti-interference ability, indicating a potential application value in early diagnosis of diseases.
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Wang X, Liu S, Xiao R, Hu J, Li L, Ning Y, Lu F. Graphene-oxide-based bioassay for the fluorometric determination of agrC gene transcription in methicillin-resistant Staphylococcus aureus that uses nicking-enzyme-assisted target recycling and a hybridization chain reaction. Talanta 2022; 250:123714. [PMID: 35779362 DOI: 10.1016/j.talanta.2022.123714] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 06/18/2022] [Accepted: 06/23/2022] [Indexed: 10/17/2022]
Abstract
Herein, we report the development of a graphene-oxide-based (GO-based) fluorescent bioassay for determining agrC gene transcription (mRNA) in methicillin-resistant Staphylococcus aureus (MRSA). The design is based on nicking-enzyme-assisted (Nb.BbvcI-assisted) target recycling amplification (NATR) and a hybridization chain reaction (HCR). The system consists of a helper probe (HP), a molecular beacon (MB) probe, four hairpins, and endonuclease Nb.BbvcI, which plays a role in target recycling and signal amplification. In the absence of the target, all of the carboxyfluorescein-labeled (FAM-labeled) hairpins are adsorbed through π-stacking interactions onto the surface of GO, resulting in FAM signal quenching. When the target is added, three nucleic acid chains hybridize together to form a triple complex that is recognized by Nb.BbvCI. The MB probe is then cleaved by Nb.BbvCI to generate an HP/target complex and two new DNA fragments; the former is hybridized to another MB probe and enters the next round of reaction. The two newly reproduced DNA fragments induce a HCR with the assistance of hairpins 1-4 to create double-stranded DNA (dsDNA) products. These dsDNA products are repelled by GO and generate strong fluorescence at excitation/emission wavelengths of 480/514 nm. Importantly, synergy between FAM and the dsDNA-SYBR Green I duplex structure led to significantly amplified fluorescence and enhanced sensitivity. The bioassay showed a detection limit of 7.5 fM toward the target and a good linearity in the 10 fM to 100 pM range. The developed method was applied to monitor biofilm formation and study the mechanism of drug action, with satisfactory results obtained.
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Affiliation(s)
- Xiaoqi Wang
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, People's Republic of China
| | - Shiwu Liu
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, People's Republic of China
| | - Rong Xiao
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, People's Republic of China
| | - Jue Hu
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, People's Republic of China
| | - Ling Li
- Experimental Center of Molecular Biology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, People's Republic of China
| | - Yi Ning
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, People's Republic of China.
| | - Fangguo Lu
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, People's Republic of China.
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11
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Zhao R, Yin N, Ma L, Zhang J, Luo Y, Guo Z, Fa M, Yang D, Wang D, Yao X. Surface Plasmon Resonance (SPR) Determination of Adenosine Triphosphate (ATP) Using Silver (I) induced Configuration Changes of a Single Stranded DNA Probe with Cytosine (C). ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2081335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Ruihuan Zhao
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Nan Yin
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Lixin Ma
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Jie Zhang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yangkai Luo
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Zhimin Guo
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Mengmei Fa
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Dingding Yang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Dengchao Wang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xin Yao
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China
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12
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Liu L, Liang X, Li Z, Zhang M, Gao M. Detection of ATP in cancer cells with a label-free fluorescent aptasensor. Nanomedicine (Lond) 2022; 17:765-774. [PMID: 35642581 DOI: 10.2217/nnm-2021-0466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To develop a new detection technique for ATP in cancer cells using fluorescent biosensing. Materials & methods: This research presents a new label-free fluorescent aptasensor for ATP measurement that incorporates a DNA aptamer, SYBR Gold and single-walled carbon nanohorns. Results: The aptasensor showed selectivity toward ATP and a low limit of detection (37.6 nM). The linear detection range was 100-50,000 nM, and the fluorescence intensity and ATP concentration logarithm showed an excellent linear correlation (R2 = 0.9924). Conclusion: The developed aptasensor may be used to detect cellular ATP in cancer cells and could be employed for biological sample analysis. The benefits of the aptasensor, such as its simplicity, speed, cost-effectiveness, specificity and sensitivity, give it promising implications as a potentially adaptable sensing platform.
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Affiliation(s)
- Liying Liu
- Department of Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xiuju Liang
- Department of Oncology, No. 960 Hospital, The People's Liberation Army, Jinan, 250031, China
| | - Zhaoming Li
- Department of Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - MingZhi Zhang
- Department of Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Ming Gao
- Department of Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
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13
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Self-assembled DNA origami-based duplexed aptasensors combined with centrifugal filters for efficient and rechargeable ATP detection. Biosens Bioelectron 2022; 211:114336. [PMID: 35623250 DOI: 10.1016/j.bios.2022.114336] [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: 11/16/2021] [Revised: 04/08/2022] [Accepted: 04/29/2022] [Indexed: 11/22/2022]
Abstract
DNA origami technology has great potential for biosensor applications. Here, we described the construction of a self-assembled DNA origami biosensor for the precise localization of fluorescent aptamers. Due to the molecular weight difference between DNA origami and aptamer, centrifugal filters were used to quantitatively detect adenosine triphosphate (ATP). The ATP-specific aptamer labeled with fluorescence reporter 6-carboxyfluorescein FAM (FAM-aptamer) was selected as the recognition element and signal probe. ATP duplexed aptamers bound to triangular DNA origami by base-complementary pairing, resulting in high fluorescence signals on the origami arrays. The competitive binding of ATP toward the FAM-aptamer triggered the release of FAM-aptamer-ATP complexes from the surface of the origami array, resulting in weakened fluorescence signals. For ATP quantification, 100 kD centrifugal filters were employed, followed by measurement of the fluorescence signal trapped on the origami arrays of the filter device. The successful synthesis of origami-aptamer arrays was characterized by atomic force microscopy, laser confocal microscopy, and electrophoresis. Fluorescence measurements exhibited an excellent linear relationship with logarithms of ATP concentrations within 0.1-100 ng mL-1, with a detection limit of 0.29 ng mL-1. By replacing aptamers and complementary strands, we demonstrated the potential of this method for 17β-estradiol detection. Considering that the detection mechanism is based on the hybridization and displacement of DNA strands, the detection system had the potential for recharging. Our study provides new insights into applying DNA origami technology in small molecule detection.
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A Novel Fluorescence Aptasensor Based on Magnetic Beads/Gold Nanoparticles/DNA-Stabilized Silver Nanoclusters for Detection of Salmonella Typhimurium. Foods 2022; 11:foods11040595. [PMID: 35206071 PMCID: PMC8871381 DOI: 10.3390/foods11040595] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 01/15/2023] Open
Abstract
Salmonella Typhimurium (S. Typhimurium) is a globally distributed foodborne pathogen, which can lead to outbreaks of foodborne infectious diseases. It is essential to guarantee food safety by timely and correct detection of S. Typhimurium. In this investigation, an original fluorescence aptasensor was constructed to detect S. Typhimurium rapidly and sensitively. Through the coupling of magnetic beads, aptamer, and gold nanoparticles (AuNPs), a fluorescence quenching system with a "sandwich structure" was established. The aptamer acted as a link, and its specific binding to S. Typhimurium could release AuNPs from the system. Meanwhile, fluorescent DNA-stabilized silver nanoclusters (DNA-AgNCs) were synthesized. The fluorescence intensity changes caused by the fluorescence resonance energy transfer between DNA-AgNCs and AuNPs were utilized to detect S. Typhimurium. The purposed aptasensor exhibited high selectivity and sensitivity with a linear response to S. Typhimurium, ranging from 3.7 × 102 to 3.7 × 105 cfu/mL. The limit of detection (LOD) was estimated to be 98 cfu/mL within 2 h 10 min. In addition, this method showed excellent application for detection of S. Typhimurium in artificially contaminated milk, with LOD reaching 3.4 × 102 cfu/mL. Therefore, the developed fluorescence aptasensor has great potential to identify S. Typhimurium in foodstuffs.
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Zheng G, Zhao L, Yuan D, Li J, Yang G, Song D, Miao H, Shu L, Mo X, Xu X, Li L, Song X, Zhao Y. A genetically encoded fluorescent biosensor for monitoring ATP in living cells with heterobifunctional aptamers. Biosens Bioelectron 2022; 198:113827. [PMID: 34861524 DOI: 10.1016/j.bios.2021.113827] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/16/2021] [Accepted: 11/19/2021] [Indexed: 02/08/2023]
Abstract
Visualizing the dynamics of ATP in living cells is key to understanding cellular energy metabolism and related diseases. However, the live-cell applications of current methods are still limited due to challenges in biological compatibility and sensitivity to pH. Herein, a novel label-free fluorescent " turn-on " biosensor for monitoring ATP in living bacterias and mammalian cells was developed. This biosensor (Broc-ATP) employed heterobifunctional aptamers to detect ATP with high sensitivity in vitro. In our system, a very useful tandem method was established by combining four Broc-ATPs with 3 × F30 three-way junction scaffold to construct an intracellular biosensor that achieves sufficient fluorescence to respond to intracellular ATP. This intracellular biosensor can be used for sensitive and specific dynamic imaging of ATP in mammalian cells. Hence, this genetically encoded biosensor provides a robust and efficient tool for the detection of intracellular ATP dynamics and 3 × F30 tandem method expands the application of heterobifunctional aptamers in mammalian cells.
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Affiliation(s)
- Guoliang Zheng
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China
| | - Liang Zhao
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China
| | - Deyu Yuan
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China
| | - Jia Li
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China
| | - Gang Yang
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China
| | - Danxia Song
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China
| | - Hui Miao
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China
| | - Linjuan Shu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Xianming Mo
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Xiaoding Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, PR China
| | - Ling Li
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China.
| | - Xu Song
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China.
| | - Yongyun Zhao
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, PR China.
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Ouyang P, Fang C, Han J, Zhang J, Yang Y, Qing Y, Chen Y, Shang W, Du J. A DNA Electrochemical Sensor via Terminal Protection of Small-Molecule-Linked DNA for Highly Sensitive Protein Detection. BIOSENSORS 2021; 11:bios11110451. [PMID: 34821667 PMCID: PMC8615823 DOI: 10.3390/bios11110451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 12/11/2022]
Abstract
The qualitative and quantitative determination of marker protein is of great significance in the life sciences and in medicine. Here, we developed an electrochemical DNA biosensor for protein detection based on DNA self-assembly and the terminal protecting effects of small-molecule-linked DNA. This strategy is demonstrated using the small molecule biotin and its receptor protein streptavidin (SA). We immobilized DNA with a designed structure and sequence on the surface of the gold electrode, and we named it M1-Biotin DNA. M1-Biotin DNA selectively combines with SA to generate M1-Biotin-SA DNA and protects M1-Biotin DNA from digestion by EXO III; therefore, M1-Biotin DNA remains intact on the electrode surface. M1-Biotin-SA DNA was modified with methylene blue (MB); the MB reporter molecule is located near the surface of the gold electrode, which generates a substantial electrochemical signal during the detection of SA. Through this strategy, we can exploit the presence or absence of an electrochemical signal to provide qualitative target protein determination as well as the strength of the electrochemical signal to quantitatively analyze the target protein concentration. This strategy has been proven to be used for the quantitative analysis of the interaction between biotin and streptavidin (SA). Under optimal conditions, the detection limit of the proposed biosensor is as low as 18.8 pM, and the linear range is from 0.5 nM to 5 μM, showing high sensitivity. The detection ability of this DNA biosensor in complex serum samples has also been studied. At the same time, we detected the folate receptor (FR) to confirm that this strategy can be used to detect other proteins. Therefore, this electrochemical DNA biosensor provides a sensitive, low-cost, and fast target protein detection platform, which may provide a reliable and powerful tool for early disease diagnosis.
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Deng J, Niu M, Liu X, Feng J, Ji S, Guo Z. Label-Free Fluorescent Aptasensor for Adenosine Triphosphate Detection Using SYBR Gold as a Probe. APPLIED SPECTROSCOPY 2021; 75:1419-1426. [PMID: 34259576 DOI: 10.1177/00037028211028668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this experimental research, a label-free sensing strategy is developed and employed to detect adenosine triphosphate with utilization of aptamers, including exonuclease I and SYBR Gold. The conformation of aptamers bonding to the specific target molecule (ATP) is transformed into an antiparallel G-quadruplex structure from a random coil. Afterwards, considering the unfolded aptamers are the preferred substrates for exonuclease I, the addition of exonuclease I is used so as to digest unfolded aptamers in the mixture in a selective manner. In the follow-up study, in order to strengthen the fluorescence intensity, SYBR Gold is applied as a fluorescent probe. The aptasensor presents the features of high selectivity against adenosine triphosphate and the low detecting limit of concentrations (39.2 nM). In order to verify the validation of experimental procedures and the practical application of the aptasensor, the detection of adenosine triphosphate for human serum samples is performed with satisfactory success. The recovery result with the range of 93.8%-108.1% is desirable and suggests that the designed approach is applicable. The outcomes of the cellular adenosine triphosphate assay manifest that the level of adenosine triphosphate concentrations in cell extracts can be monitored without the interference of other substances in the cells. Subject to its advantageous benefits (cost-effective, easiness, rapidity, and extraordinary selectivity), the designed approach has a promising implication for adenosine triphosphate detection in the research domain of bioanalytical science and biology.
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Affiliation(s)
- Jun Deng
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, China
| | - Mengyu Niu
- College of Agriculture, Yanbian University, Yanji, China
| | - Xingquan Liu
- College of Agriculture and Food Science, Zhejiang Agricultural & Forestry University, Hangzhou, China
| | - Jin Feng
- College of Agriculture, Yanbian University, Yanji, China
| | - Shuang Ji
- College of Agriculture, Yanbian University, Yanji, China
| | - Zhijun Guo
- College of Agriculture, Yanbian University, Yanji, China
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18
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Chen M, Li Y, Li P, Guo W, Yang Y, Wu X, Ye Y, Huang J. Ligation-dependent rolling circle amplification method for ATP determination with high selectivity and sensitivity. Analyst 2021; 146:6605-6614. [PMID: 34586110 DOI: 10.1039/d1an01115d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
It is highly demanded to develop methods for the reliable detection of ATP, which plays an extremely important role in clinical diagnosis, biomedical engineering, and food chemistry. However, the methods currently available for ATP sensing strongly rely on the utilization of expensive and sophisticated instruments or the use of ATP aptamers with mediocre sensitivity and selectivity. To circumvent these drawbacks, we herein propose an efficient method for ATP detection by integrating highly specific ATP-dependent ligation reaction with dual-stage signal amplification techniques executed by rolling circle amplification (RCA) and the subsequently fabricated DNAzymes ready for the catalytic cleavage and fluorescence signal generation from molecular beacons (MBs). The detection limit is down to 35 pM with a linear range from 0.05 nM to 200 nM. More importantly, the sensing strategy can effectively discriminate ATP from its analogues and the results from the spiked human serum albumin (HSA) samples further confirm the reliability for practical applications. Considering the high sensitivity and selectivity, wash-free and isothermal convenience, and the simplicity in probe design, the strategy reported herein paves a new avenue for the effective determination of ATP and other biomolecules in fundamental and applied research.
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Affiliation(s)
- Mingjian Chen
- NHC Key Laboratory of Carcinogenesis and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Science, Central South University, Changsha 410078, P. R. China. .,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, the Third Xiangya Hospital, Central South University, Changsha 410013, P. R. China.,Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, P. R. China
| | - Yang Li
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, P. R. China.
| | - Peng Li
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, P. R. China.
| | - Wanni Guo
- NHC Key Laboratory of Carcinogenesis and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Science, Central South University, Changsha 410078, P. R. China. .,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, the Third Xiangya Hospital, Central South University, Changsha 410013, P. R. China.,Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, P. R. China
| | - Yuxin Yang
- NHC Key Laboratory of Carcinogenesis and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Science, Central South University, Changsha 410078, P. R. China. .,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, the Third Xiangya Hospital, Central South University, Changsha 410013, P. R. China.,Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, P. R. China
| | - Xu Wu
- NHC Key Laboratory of Carcinogenesis and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Science, Central South University, Changsha 410078, P. R. China. .,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, the Third Xiangya Hospital, Central South University, Changsha 410013, P. R. China.,Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, P. R. China
| | - Yu Ye
- Department of Radiology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Health Care Group, Huangshi 435002, P. R. China. .,Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Huangshi 435002, P. R. China
| | - Jiahao Huang
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, P. R. China. .,Department of Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, P. R. China
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19
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Non-Coding RNA-Based Biosensors for Early Detection of Liver Cancer. Biomedicines 2021; 9:biomedicines9080964. [PMID: 34440168 PMCID: PMC8391662 DOI: 10.3390/biomedicines9080964] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/22/2021] [Accepted: 08/01/2021] [Indexed: 12/27/2022] Open
Abstract
Primary liver cancer is an aggressive, lethal malignancy that ranks as the fourth leading cause of cancer-related death worldwide. Its 5-year mortality rate is estimated to be more than 95%. This significant low survival rate is due to poor diagnosis, which can be referred to as the lack of sufficient and early-stage detection methods. Many liver cancer-associated non-coding RNAs (ncRNAs) have been extensively examined to serve as promising biomarkers for precise diagnostics, prognostics, and the evaluation of the therapeutic progress. For the simple, rapid, and selective ncRNA detection, various nanomaterial-enhanced biosensors have been developed based on electrochemical, optical, and electromechanical detection methods. This review presents ncRNAs as the potential biomarkers for the early-stage diagnosis of liver cancer. Moreover, a comprehensive overview of recent developments in nanobiosensors for liver cancer-related ncRNA detection is provided.
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20
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Zhou B, Guo X, Yang N, Huang Z, Huang L, Fang Z, Zhang C, Li L, Yu C. Surface engineering strategies of gold nanomaterials and their applications in biomedicine and detection. J Mater Chem B 2021; 9:5583-5598. [PMID: 34161402 DOI: 10.1039/d1tb00181g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Gold nanomaterials have potential applications in biosensors and biomedicine due to their controllable synthesis steps, high biocompatibility, low toxicity and easy surface modification. However, there are still various limitations including low water solubility and stability, which greatly affect their applications. In addition, some synthetic methods are very complicated and costly. Therefore, huge efforts have been made to improve their properties. This review mainly introduces the strategies for surface modification of gold nanomaterials, such as amines, biological small molecules and organic small molecules as well as the biological applications of these functionalized AuNPs. We aim to provide effective ideas for better functionalization of gold nanomaterials in the future.
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Affiliation(s)
- Bicong Zhou
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Xiaolu Guo
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Naidi Yang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Zhongxi Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Lihua Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Zhijie Fang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Chengwu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Changmin Yu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
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21
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A novel SERS sensor for the ultrasensitive detection of kanamycin based on a Zn-doped carbon quantum dot catalytic switch controlled by nucleic acid aptamer and size-controlled gold nanorods. Food Chem 2021; 362:130261. [PMID: 34111691 DOI: 10.1016/j.foodchem.2021.130261] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/09/2021] [Accepted: 05/29/2021] [Indexed: 12/15/2022]
Abstract
In this study, a novel surface enhanced Raman spectroscopy (SERS) sensor was developed for the ultrasensitive determination of kanamycin in foods. The sensor used two distinct signal amplification strategies, namely the surface plasmon resonance of gold nanorods and a Zn-doped carbon quantum dots catalytic cascade oxidation-reduction reaction switch controlled by a nucleic acid aptamer. Under optimized experimental conditions, the SERS sensor demonstrated a linear range of 10-12 to 10-5 g mL-1 for the detection of kanamycin, with a limit of detection of 3.03 × 10-13 g mL-1. Experiments with antibiotics structurally similar to kanamycin and interferrants revealed that the sensor had excellent selectivity. Milkpowder and honey samples spiked with kanamycin were assayed, with recoveries ranging from 84.1% to 107.2% and a relative standard deviation of 0.74% to 2.81% being obtained. Quantification of kanamycin in milk samples revealed no significant difference between the results obtained with the sensor and by HPLC.
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22
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Nuclease-assisted target recycling signal amplification strategy for graphene quantum dot-based fluorescent detection of marine biotoxins. Mikrochim Acta 2021; 188:118. [PMID: 33687572 DOI: 10.1007/s00604-020-04684-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
Saxitoxin (STX) is a major marine toxin from shellfish, and it is responsible for paralytic shellfish poisoning (PSP). In this study, a highly sensitive and rapid aptamer assay was developed for STX detection by combining fluorescence resonance energy transfer (FRET) and nuclease-assisted target recycling signal amplification. The aptamer STX-41 conjugated with graphene quantum dots (GQDs) was adsorbed on magnetic reduced graphene oxide (MRGO) to establish a fluorescence quenching system. Then, the binding between STX and aptamer induced the desorption of GQD-aptamer from MRGO and the restoring of fluorescence for the fluorescent determination of STX. The digestion of the target bound aptamer by DNase I could release the target for recycling thus achieving signal amplification. Under the optimized conditions, the aptamer assay showed a wide detection range (0.1-100 ng·mL-1), low detection limit (LOD of 0.035 ng·mL-1), high specificity, good recovery (86.75-94.08% in STX-spiked clam samples) and repeatability (RSD of 4.27-7.34%). Combined with fluorescent detection technology, signal amplification technology, and magnetic separation technology, the proposed method can be used to detect STX in seafood products successfully.
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Zhang H, Cheng C, Dong N, Ji X, Hu J. Positively charged Ag@Au core-shell nanoparticles as highly stable and enhanced fluorescence quenching platform for one-step nuclease activity detection. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Huang W, Zhou Y, Zhan D, Lai G. Homogeneous biorecognition reaction-induced assembly of DNA nanostructures for ultrasensitive electrochemical detection of kanamycin antibiotic. Anal Chim Acta 2021; 1154:338317. [PMID: 33736811 DOI: 10.1016/j.aca.2021.338317] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 01/16/2023]
Abstract
By the employment of a homogeneous biorecognition reaction to induce the assembled formation of DNA nanostructures at an electrode, herein we develop a novel biosensing method for the ultrasensitive electrochemical detection of kanamycin (Kana) antibiotic. A DNA complex consisting of Kana-aptamer and a hairpin DNA with an exposed 3'-end was first designed for conducting the homogeneous reaction with Kana in the presence of exonuclease I (Exo I). It resulted in the production of a hairpin DNA with a blunt terminus, which could be used for triggering the assembled formation of a layer of DNA nanostructures with orderly distribution and abundant biotin sites at a gold electrode. Then, high-content methylene blue and horseradish peroxidase (HRP)-functionalized gold nanotags would be captured onto the electrode to realize the electrocatalytic signal transduction. Due to the Exo I and HRP-assisted dual signal amplification, a very low detection limit of 9.1 fg mL-1 was obtained for the Kana assay along with a very wide linear range over five-order of magnitude. Considering the excellent performance of the method, it exhibits a promising prospect for practical applications.
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Affiliation(s)
- Wan Huang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Yue Zhou
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Danyan Zhan
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Guosong Lai
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China.
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Shaban SM, Kim DH. Recent Advances in Aptamer Sensors. SENSORS (BASEL, SWITZERLAND) 2021; 21:979. [PMID: 33540523 PMCID: PMC7867169 DOI: 10.3390/s21030979] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 02/07/2023]
Abstract
Recently, aptamers have attracted attention in the biosensing field as signal recognition elements because of their high binding affinity toward specific targets such as proteins, cells, small molecules, and even metal ions, antibodies for which are difficult to obtain. Aptamers are single oligonucleotides generated by in vitro selection mechanisms via the systematic evolution of ligand exponential enrichment (SELEX) process. In addition to their high binding affinity, aptamers can be easily functionalized and engineered, providing several signaling modes such as colorimetric, fluorometric, and electrochemical, in what are known as aptasensors. In this review, recent advances in aptasensors as powerful biosensor probes that could be used in different fields, including environmental monitoring, clinical diagnosis, and drug monitoring, are described. Advances in aptamer-based colorimetric, fluorometric, and electrochemical aptasensing with their advantages and disadvantages are summarized and critically discussed. Additionally, future prospects are pointed out to facilitate the development of aptasensor technology for different targets.
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Affiliation(s)
- Samy M. Shaban
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea;
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Korea
- Petrochemicals Department, Egyptian Petroleum Research Institute, Cairo 11727, Egypt
| | - Dong-Hwan Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea;
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Korea
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26
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Zhang H, Liu P, Wang H, Ji X, Zhao M, Song Z. Label-free fluorescent sensor for one-step lysozyme detection via positively charged gold nanorods. Anal Bioanal Chem 2020; 413:1541-1547. [PMID: 32705288 DOI: 10.1007/s00216-020-02814-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/29/2020] [Accepted: 07/09/2020] [Indexed: 12/25/2022]
Abstract
In the article, a simple and label-free strategy was proposed for the sensitive detection of lysozyme based on the fluorescence quenching of positively charged gold nanorods ((+)AuNRs) to DNA-templated silver nanoclusters (DNA/AgNCs). To construct the sensor, a DNA template was designed with a C-rich sequence at the 5'-terminal for the synthesis of AgNCs, while a lysozyme binding aptamer (LBA) at the 3'-terminal for the recognition of lysozyme, and such DNA/AgNCs was used as the fluorescence probe. Meantime, the fluorescence signal of such DNA/AgNCs can be quenched based on the electrostatic adsorption of them with (+)AuNRs, due to the surface energy transfer. In the presence of lysozyme, the specific binding happened between the LBA section of DNA/AgNCs and lysozyme, inducing the reduction of the total charge of DNA/AgNCs and weakening the adsorption of them with (+)AuNRs, which directly resulting in the recovery of the fluorescence signal. Besides, the fluorescence signal recovery of DNA/AgNCs has a linear positive proportional relationship with lysozyme concentration in the range of 10 pM-2.0 nM under the optimal conditions. Moreover, a satisfactory recovery (99.6-107.2%) was obtained while detecting lysozyme in human serum samples. Graphical abstract A simple and label-free strategy was proposed for the sensitive detection of lysozyme based on the fluorescence quenching of positively charged gold nanorods ((+)AuNRs) to DNA-templated silver nanoclusters (DNA/AgNCs).
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Affiliation(s)
- Hong Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Pengfei Liu
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Huifang Wang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Xiaoming Ji
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Mingqin Zhao
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
| | - Zhaopeng Song
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
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