1
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Wang T, Tan HS, Wang AJ, Li SS, Feng JJ. Fluorescent metal nanoclusters: From luminescence mechanism to applications in enzyme activity assays. Biosens Bioelectron 2024; 257:116323. [PMID: 38669842 DOI: 10.1016/j.bios.2024.116323] [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: 01/12/2024] [Revised: 04/09/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024]
Abstract
Metal nanoclusters (MNCs) have outstanding fluorescence property and biocompatibility, which show widespread applications in biological analysis. Particularly, evaluation of enzyme activity with the fluorescent MNCs has been developed rapidly within the past several years. In this review, we first introduced the fluorescent mechanism of mono- and bi-metallic nanoclusters, respectively, whose interesting luminescence properties are mainly resulted from electron transfer between the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) energy levels. Meanwhile, the charge migration within the structure occurs through ligand-metal charge transfer (LMCT) or ligand-metal-metal charge transfer (LMMCT). On such foundation, diverse enzyme activities were rigorously evaluated, including three transferases and nine hydrolases, in turn harvesting rapid research progresses within past 5 years. Finally, we summarized the design strategies for evaluating enzyme activity with the MNCs, presented the major issues and challenges remained in the relevant research, coupled by showing some improvement measures. This review will attract researchers dedicated to the studies of the MNCs and provide some constructive insights for their further applications in enzyme analysis.
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Affiliation(s)
- Tong Wang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Hong-Sheng Tan
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Ai-Jun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Shan-Shan Li
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China.
| | - Jiu-Ju Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
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2
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Cybulski O, Quintana C, Siek M, Grzybowski BA. Stirring-Controlled Synthesis of Ultrastable, Fluorescent Silver Nanoclusters. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400306. [PMID: 38934325 DOI: 10.1002/smll.202400306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 06/09/2024] [Indexed: 06/28/2024]
Abstract
This paper describes how macroscopic stirring of a reaction mixture can be used to produce nanostructures exhibiting properties not readily achievable via other protocols. In particular, it is shown that by simply adjusting the stirring rate, a standard glutathione-based method-to date, used to produce only marginally stable fluorescent silver nanoclusters, Ag NCs-can be boosted to yield nanoclusters retaining fluorescence for unprecedented periods of over 2 years. This enhancement derives not simply from increased homogenization of the reaction mixture but mainly from an appropriately timed delivery of oxygen from above the reaction mixture. In effect, oxygen serves as a reagent that dictates size, structure, stability, and functional properties of the growing nanoobjects.
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Affiliation(s)
- Olgierd Cybulski
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
| | - Cristóbal Quintana
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
| | - Marta Siek
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
| | - Bartosz A Grzybowski
- Center for Algorithmic and Robotized Synthesis (CARS), Institute for Basic Science (IBS), Ulsan, 44919, South Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
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3
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Tumor microenvironment-triggered intratumoral in-situ biosynthesis of inorganic nanomaterials for precise tumor diagnostics. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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4
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Da Y, Luo S, Tian Y. Real-Time Monitoring of Neurotransmitters in the Brain of Living Animals. ACS APPLIED MATERIALS & INTERFACES 2023; 15:138-157. [PMID: 35394736 DOI: 10.1021/acsami.2c02740] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Neurotransmitters, as important chemical small molecules, perform the function of neural signal transmission from cell to cell. Excess concentrations of neurotransmitters are often closely associated with brain diseases, such as Alzheimer's disease, depression, schizophrenia, and Parkinson's disease. On the other hand, the release of neurotransmitters under the induced stimulation indicates the occurrence of reward-related behaviors, including food and drug addiction. Therefore, to understand the physiological and pathological functions of neurotransmitters, especially in complex environments of the living brain, it is urgent to develop effective tools to monitor their dynamics with high sensitivity and specificity. Over the past 30 years, significant advances in electrochemical sensors and optical probes have brought new possibilities for studying neurons and neural circuits by monitoring the changes in neurotransmitters. This Review focuses on the progress in the construction of sensors for in vivo analysis of neurotransmitters in the brain and summarizes current attempts to address key issues in the development of sensors with high selectivity, sensitivity, and stability. Combined with the latest advances in technologies and methods, several strategies for sensor construction are provided for recording chemical signal changes in the complex environment of the brain.
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Affiliation(s)
- Yifan Da
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Shihua Luo
- Department of Traumatology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
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5
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Li J, Peng G, Yu Y, Lin B, Zhang L, Guo M, Cao Y, Wang Y. Cu 2+-mediated turn-on fluorescence biosensor based on DNA-templated silver nanoclusters for label-free and sensitive detection of adenosine triphosphate. Mikrochim Acta 2022; 190:41. [PMID: 36585965 DOI: 10.1007/s00604-022-05617-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 12/07/2022] [Indexed: 01/01/2023]
Abstract
A Cu2+-mediated turn-on fluorescence biosensor based on the DNA-templated green-emitting silver nanoclusters (DNA@g-AgNCs) was developed for label-free and sensitive detection of adenosine 5'-triphosphate (ATP). Cu2+ was able to quench the bright green fluorescence of DNA@g-AgNCs because of the coordination and photoinduced electron transfer between DNA@g-AgNCs and Cu2+. Therefore, a unique and effective fluorescence biosensor can be constructed with the formation of DNA@g-AgNCs/Cu2+/ATP ternary-competition system. With the introduction of ATP, the DNA@g-AgNCs/Cu2+ fluorescence sensing system will be disrupted and the fluorescence of DNA@g-AgNCs was recovered due to higher affinity of ATP towards Cu2+. On the basis of this feature, the DNA@g-AgNCs/Cu2+ fluorescence sensing system demonstrated quantitative determination of ATP in the range 0.05 - 3 μM and a detection limit of 16 nM. Moreover, the fluorescence sensing system was successfully applied to the quantitative determination of ATP in human urine and serum samples with recoveries ranging from 98.6 to 106.5%, showing great promise to provide a label-free, cost-efficient, and rapid platform for ATP-related clinical disease diagnosis.
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Affiliation(s)
- Jingze Li
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China
- School of Materials Engineering, Jiangxi College of Applied Technology, Ganzhou, Jiangxi, 341000, People's Republic of China
| | - Guibin Peng
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Ying Yu
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China.
| | - Bixia Lin
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Li Zhang
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Manli Guo
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Yujuan Cao
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Yumin Wang
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China.
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi, 541004, People's Republic of China.
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6
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Liang X, Zhang Y, Zhou J, Bu Z, Liu J, Zhang K. Tumor microenvironment-triggered intratumoral in situ construction of theranostic supramolecular self-assembly. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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7
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Mi W, Tang S, Guo S, Li H, Shao N. In situ synthesis of red fluorescent gold nanoclusters with enzyme-like activity for oxidative stress amplification in chemodynamic therapy. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.07.073] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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8
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Cheng W, Xiang L, Adeel K, Zhang J, Sun Y, Zhang Z, Li J. Ultrasensitive fluorescent detection of telomerase activity based on tetrahedral DNA nanostructures as carriers for DNA-templated silver nanoclusters. Anal Bioanal Chem 2022; 414:2431-2438. [PMID: 35037986 DOI: 10.1007/s00216-022-03883-1] [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: 10/12/2021] [Revised: 12/27/2021] [Accepted: 01/06/2022] [Indexed: 12/17/2022]
Abstract
Precise evaluation of telomerase activity is essential for the clinical diagnosis of early tumors. Herein, we have ingeniously designed a tetrahedral DNA nanostructure, with hairpin-shaped DNA probes rich in cytosine bases at four vertices for telomerase detection. The DNA-templated silver nanoclusters can be formed after the addition of Ag. Then the introduction of telomerase adds the single-strand TTAGGG extension, which can "turn on" the fluorescence of silver nanoclusters quickly by the proximity of the resulting guanine-rich sequences to silver nanoclusters and realize accurate detection of telomerase activity. In this study, integration of high stability tetrahedral DNA nanostructure and fluorescence signal amplification of four DNA-templated silver nanoclusters offers the advantage of high sensitivity, with a low detection limit of 1 cell. More than that, this method is low-cost, facile, and feasible for practical clinical applications.
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Affiliation(s)
- Wenting Cheng
- Department of Clinical Laboratory, Gaochun People's Hospital, Nanjing, 211300, China
| | - Liangliang Xiang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - Khan Adeel
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Jianchun Zhang
- Department of Clinical Laboratory, Gaochun People's Hospital, Nanjing, 211300, China
| | - Ying Sun
- Department of Clinical Laboratory, Gaochun People's Hospital, Nanjing, 211300, China
| | - Zhaoli Zhang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - Jinlong Li
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, China.
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9
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Tayyaba, Rehman FU, Shaikh S, Tanziela, Semcheddine F, Du T, Jiang H, Wang X. In situ self-assembled Ag-Fe 3O 4 nanoclusters in exosomes for cancer diagnosis. J Mater Chem B 2021; 8:2845-2855. [PMID: 32175535 DOI: 10.1039/c9tb02610j] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Recently, exosomes have gained attention as an effective tool for early cancer detection. Almost all types of cells release exosomes, making them substantially important for disease diagnosis. In this study, we have utilized HepG2 cancer cells for the in situ biosynthesis of silver and iron oxide nanoclusters (NCs) from their respective salts (i.e., AgNO3 and FeCl2, respectively) in the presence of glutathione (GSH). The self-assembled biosynthesized silver and iron NCs were readily loaded on exosomes as payloads and secreted into the cell culture medium. The cargo loaded exosomes were then isolated and characterized by electron microscopy for nano-silver and iron oxide NC confirmation. Ag NCs have potential as a fluorescent probe and Fe3O4 NCs as a contrast agent for CT and MRI. Furthermore, these isolated exosomes from HepG2 cancer cells have a significant influence on cellular uptake and cell viability when exposed to both HepG2 and U87 cancer cells. These findings demonstrate that the biocompatible nature of these self-assembled NCs loaded on exosomes could be utilized to bioimage cancer in the initial stages through fluorescence imaging.
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Affiliation(s)
- Tayyaba
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Fawad Ur Rehman
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Sana Shaikh
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Tanziela
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Farouk Semcheddine
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Tianyu Du
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Hui Jiang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
| | - Xuemei Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
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10
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Yu Z, Jiang F, Hu C, Tang B. Functionalized nanoprobes for in situ detection of telomerase. Chem Commun (Camb) 2021; 57:3736-3748. [PMID: 33876119 DOI: 10.1039/d0cc08412c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Telomerase, a special ribonucleoprotein reverse transcriptase, can maintain the length and stability of telomeres and plays an important role in cell proliferation and differentiation. Due to the distinguishable expression level in normal cells and cancer cells, telomerase has become an important biomarker for cancer diagnosis and prognosis evaluation. Despite major breakthroughs in the field of telomerase detection, the extracts in the cell lysate are still the first choice as the analyte nevertheless, which will bring serious inaccuracies compared with the real intracellular activity. With the development of nanotechnology and nanomaterials, extraordinary progress has been made in telomerase detection by employing different versatile nanoprobes. In this review, we list the superiority of nanoprobes and systematically summarize the applications of nanoprobes in telomerase detection from the aspects of various nanomaterials and discuss the current challenges and potential trends in the future design of nanoprobes.
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Affiliation(s)
- Zhengze Yu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China.
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11
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Qambrani A, Rehman FU, Tanziela T, Shaikh S, Semcheddine F, Du T, Liu W, Jiang H, Wang X. Biocompatible exosomes nanodrug cargo for cancer cell bioimaging and drug delivery. Biomed Mater 2021; 16:025026. [PMID: 32726764 DOI: 10.1088/1748-605x/abaaa2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Therapy against cancer remains a daunting issue for human health, despite remarkable innovations in many areas of pathology. In situ biosynthesized nanoclusters bestow a novel remedy for carcinogenic cell imaging. Exosomes have received special attention as an efficient tool for the diagnosis of various diseases, including cancers. All types of cells (healthy or diseased) generate exosomes, making them significantly unique for relevant disease diagnosis and treatment. In this contribution, we exploit the possibility of utilizing the exosomes to facilitate chemotherapeutics, viz. the combination of doxorubicin (Dox) and biosynthesized silver nanoclusters in cancer cells. Our study showed a new facile way for bioimaging of cancer cells using biosynthesized silver-DNA nanoclusters, and thus further targeting cancer cells using the relevant cancer exosomes as drug delivery cargo. After isolating exosomes from neoplastic cells, i.e. HeLa, loaded with the drug, and treating other neoplastic cells with cargo-loaded isolated exosomes, we found that cargo-loaded isolated exosomes can readily enter into the targeted cancer cells and efficiently kill these neoplastic cells. This raises the possibility of acting as a novel facile modality for target cancer theranostics with high efficiency and biocompability.
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Affiliation(s)
- Aqsa Qambrani
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096 China. Correspondence and requests for materials should be addressed to
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12
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Wang D, Xue W, Ren X, Xu Z. A review on sensing mechanisms and strategies for telomerase activity detection. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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13
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Fluorescent bovine serum albumin-silver nanoclusters loaded with paclitaxel can traverse the blood-brain barrier to inhibit the migration of glioma. JOURNAL OF BIO-X RESEARCH 2020. [DOI: 10.1097/jbr.0000000000000082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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14
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Dai Z, Guo J, Xu J, Liu C, Gao Z, Song YY. Target-Driven Nanozyme Growth in TiO 2 Nanochannels for Improving Selectivity in Electrochemical Biosensing. Anal Chem 2020; 92:10033-10041. [PMID: 32603589 DOI: 10.1021/acs.analchem.0c01815] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanozymes have been used in colorimetric and electrochemical sensing because of their low cost and high stability. However, the wide applications of nanozymes in sensing devices are largely limited due to their poor selectivity. In this study, unlike traditional methods using prepared nanozymes for target detection, we designed a target-driven nanozyme growth strategy in TiO2 nanochannels to detect analytes. Using telomerase as an example, the established recognition event was used to expand the photocatalytic activity of TiO2 to visible-light region, thus triggering Prussian blue nanoparticle (PBNP) growth in visible light. Benefiting from the peroxidase (POD)-like activity of PBNPs, the uncharged 3,5,3',5'-tetramethylbenzidine (TMB) is oxidized to positively charged oxTMB, which induces significant ionic transport changes in nanochannels, and thus in turn provides information about telomerase activity. Such a nanozyme-triggered sensing system exhibited excellent performance in telomerase detection in urine specimens from patients with bladder cancer. This innovative target-driven signal generation strategy might provide a new method for applying nanozymes in developing sensitive, rapid, and accurate biological sensing systems.
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Affiliation(s)
- Zhenqing Dai
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Junli Guo
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Jing Xu
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Chen Liu
- School of Electronic Engineering, Xi'an University of Posts and Telecommunication, Xi'an 710121, China
| | - Zhida Gao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Yan-Yan Song
- College of Sciences, Northeastern University, Shenyang 110004, China
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15
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Borghei YS, Hosseinkhani S. Colorimetric assay of apoptosis through in-situ biosynthesized gold nanoparticles inside living breast cancer cells. Talanta 2020; 208:120463. [DOI: 10.1016/j.talanta.2019.120463] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 12/14/2022]
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16
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Ratiometric determination of human papillomavirus-16 DNA by using fluorescent DNA-templated silver nanoclusters and hairpin-blocked DNAzyme-assisted cascade amplification. Mikrochim Acta 2019; 186:613. [DOI: 10.1007/s00604-019-3732-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 08/01/2019] [Indexed: 11/26/2022]
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17
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DNA-Silver Nanocluster Binary Probes for Ratiometric Fluorescent Detection of HPV-related DNA. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-9085-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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18
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Yao Y, Li N, Zhang X, Ong'achwa Machuki J, Yang D, Yu Y, Li J, Tang D, Tian J, Gao F. DNA-Templated Silver Nanocluster/Porphyrin/MnO 2 Platform for Label-Free Intracellular Zn 2+ Imaging and Fluorescence-/Magnetic Resonance Imaging-Guided Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:13991-14003. [PMID: 30901195 DOI: 10.1021/acsami.9b01530] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Developing a theranostic platform that integrates diagnosis and treatment in one single nanostructure is necessary for efficient tumor treatment. Here, we presented a novel theranostic nanoprobe for nonlabeled fluorescence imaging of Zn2+ and 635 nm red light-triggered photodynamic therapy (PDT) by a multifunctional DNA-templated silver nanocluster/porphyrin/MnO2 nanoplatform. MnO2 nanosheets adsorbed hairpin DNA-silver nanoclusters (AgNCs) and porphyrin (P) by facile physisorption, which accelerate the transfection of nanoprobes and P into tumor cells. After entering the cells, the biodegradation of MnO2 nanosheets by glutathione and acidic hydrogen peroxide released AgNCs for label-free Zn2+ fluorescence imaging by the hairpin DNA-fueled dynamic self-assembly of three-way DNA junction architectures, and the released Mn2+ could act as an effective magnetic resonance imaging (MRI) contrast agent. In addition, MnO2 was decomposed in the acidic H2O2-ample environment and produced O2 to overbear hypoxia-related PDT resistance, highly efficient PDT was obtained by excess singlet oxygen (1O2) release of P-AgNCs-MnO2 nanoprobes under light irradiation compared with free P. In vitro and in vivo studies confirmed that P-AgNCs-MnO2 exhibited high fluorescence specificity, excellent PDT effect, and good biocompatibility and could be used as a contrast agent for MRI. This theranostic platform provided a new avenue for the fluorescence and MRI diagnosis of tumors and efficient tumor treatment.
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Affiliation(s)
- Yao Yao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Na Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Xing Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Jeremiah Ong'achwa Machuki
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Dongzhi Yang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Yanyan Yu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Jingjing Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Daoquan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
| | - Jiangwei Tian
- School of Traditional Chinese Pharmacy , China Pharmaceutical University , 211198 Nanjing , China
| | - Fenglei Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy , Xuzhou Medical University , 221004 Xuzhou , China
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19
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Yang B, Shi L, Lei J, Li B, Jin Y. Advances in optical assays for detecting telomerase activity. LUMINESCENCE 2019; 34:136-152. [PMID: 30706686 DOI: 10.1002/bio.3595] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/21/2018] [Accepted: 12/23/2018] [Indexed: 12/14/2022]
Abstract
Telomerase uses its RNA as template and its protein unit as reverse transcriptase to synthesize TTAGGG repeats at the ends of the eukaryotic chromosome to maintain the lengths of telomeres. Telomerase activity up-regulates in about 85% of human tumors compared with somatic cells, which indicates that telomerase is a tumor biomarker. Reliable assay of telomerase activity is thus essential in diagnosis and management of malignant tumors. In this review, recent developed optical assays are summarized based on the readout signal, including chemiluminescence assay, colorimetric assay, and fluorescence assay.
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Affiliation(s)
- Bing Yang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Lu Shi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Jing Lei
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Baoxin Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Yan Jin
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
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Lan J, Wu X, Luo L, Liu J, Yang L, Wang F. Fluorescent Ag clusters conjugated with anterior gradient-2 antigen aptamer for specific detection of cancer cells. Talanta 2018; 197:86-91. [PMID: 30771992 DOI: 10.1016/j.talanta.2018.12.089] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/21/2018] [Accepted: 12/25/2018] [Indexed: 11/29/2022]
Abstract
Anterior gradient protein 2 homolog (AGR) is a potential tumor biomarker and plays an important role in tissue development and regeneration. The intracellular detection of AGR is rarely reported. By conjugating the AGR aptamer with a cytosine base sequence as Ag cluster template, a highly fluorescent probe (MA@AgNCs) was synthesized for targeting intracellular AGR. The MA@AgNCs display a maximum fluorescence peak at 565 nm, and possess an excellent quantum yield (QY = 87.43%), small size, great biocompatibility, low toxicity, and good stability. Moreover, the as synthesized MA@AgNCs show high specificity on recognizing breast cancer cells.
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Affiliation(s)
- Jinze Lan
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China; University of Chinese Academy of Sciences, No. 19 Yuquan Road, Beijing 100049, China.
| | - Xiaoxia Wu
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
| | - Liang Luo
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
| | - Jing Liu
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
| | - Lingyan Yang
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
| | - Fu Wang
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
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Xu S, Jiang L, Nie Y, Wang J, Li H, Liu Y, Wang W, Xu G, Luo X. Gold Nanobipyramids as Dual-Functional Substrates for in Situ "Turn On" Analyzing Intracellular Telomerase Activity Based on Target-Triggered Plasmon-Enhanced Fluorescence. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26851-26858. [PMID: 30043605 DOI: 10.1021/acsami.8b05447] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Herein, we developed a novel plasmon-enhanced fluorescence (PEF)-based telomerase-responsive nanoprobe for in situ fluorescence "turn on" visualization of telomerase activity in live cells. The as-prepared nanoprobe was composed of a nicked molecular beacon (which contains Cy5.5-labeled hairpin-DNA sequences hybridized with telomerase primers)-functionalized gold nanobipyramids (Au NBPs). Au NBPs were selected as both fluorescence resonance energy-transfer and PEF dual-functional substrates, while DNA was selected to be the precise spacer to manage the interval between the Au NBPs and Cy5.5. On the basis of this target-triggered PEF probe, optimal fluorescence enhancement can be obtained with 49 DNA bases, which was higher than gold nanorods. The proposed method accomplishes sensitive telomerase activity detection down to 23 HeLa cells with a dynamic range of 40-1200 HeLa cells. On the basis of this, in situ fluorescence imaging of telomerase activity in live cells and real-time analysis of the variation in intracellular telomerase activity can be achieved. Moreover, cancer cells and normal cells can also be successfully discriminated even in their co-cultured mixtures, indicating promising potential in clinical diagnoses.
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Affiliation(s)
- Shenghao Xu
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Liping Jiang
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Yongyin Nie
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Jun Wang
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Haiming Li
- Qingdao Women and Children's Hospital , Qingdao 266034 , P. R. China
| | - Yuanyuan Liu
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Wei Wang
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Guiyun Xu
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Xiliang Luo
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
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22
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Wang C, Yang H, Wu S, Liu Y, Wei W, Zhang Y, Wei M, Liu S. Manifold methods for telomerase activity detection based on various unique probes. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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