51
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Gu T, Gu M, Liu YL, Dong Y, Zhu LB, Li Z, Wang GL, Zhao WW. In situ chemical redox and functionalization of graphene oxide: toward new cathodic photoelectrochemical bioanalysis. Chem Commun (Camb) 2019; 55:10072-10075. [PMID: 31378796 DOI: 10.1039/c9cc03877a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This report outlines the first exploration of graphene oxide (GO) itself as a light harvesting material with an innovative in situ chemical redox and functionalization (CRF) strategy for versatile and high-throughput cathodic photoelectrochemical (PEC) bioanalysis.
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Affiliation(s)
- Tiantian Gu
- International Joint Research Center for Photoresponsive Molecules and Materials, Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
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52
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Niu X, Ye K, Wang L, Lin Y, Du D. A review on emerging principles and strategies for colorimetric and fluorescent detection of alkaline phosphatase activity. Anal Chim Acta 2019; 1086:29-45. [PMID: 31561792 DOI: 10.1016/j.aca.2019.07.068] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/19/2019] [Accepted: 07/30/2019] [Indexed: 12/24/2022]
Abstract
Alkaline phosphatase (ALP) is a natural enzyme that is able to catalyze the dephosphorylation of phosphate esters. It participates in a great number of biological processes ranging from various metabolisms to signal transduction and cellular regulation. Since the abnormality of ALP activity in body is closely associated with many diseases, it has become an important biomarker for clinical diagnosis and treatment. Besides, it is often utilized in enzyme-linked immunosorbent assays. Given these demands, in the last few years considerable interest has been focused on exploring new materials and methods for ALP activity detection. In this review, we first made a clear classification on the principles that could be used for ALP activity determination. After that, emerging colorimetric and fluorescent strategies designed on the basis of these principles were systematically summarized. Finally, some perspectives on ALP activity analysis were discussed, hoping to inspire future efforts in the field.
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Affiliation(s)
- Xiangheng Niu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China; School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164, USA.
| | - Kun Ye
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Linjie Wang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yuehe Lin
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164, USA
| | - Dan Du
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164, USA.
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53
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Ma X, Lin S, Dang Y, Dai Y, Zhang X, Xia F. Carbon dots as an "on-off-on" fluorescent probe for detection of Cu(II) ion, ascorbic acid, and acid phosphatase. Anal Bioanal Chem 2019; 411:6645-6653. [PMID: 31372699 DOI: 10.1007/s00216-019-02038-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/19/2019] [Accepted: 07/17/2019] [Indexed: 12/12/2022]
Abstract
Carbon dot (CD)-based fluorescent probes have been widely exploited; however, multi-component detection using CDs without tedious surface modification is always a challenging task. Here, we develop a convenient and simple CD-based "on-off-on" fluorescent probe for detection of copper(II) ion (Cu2+), ascorbic acid (AA), and acid phosphatase (ACP). Cu2+ leads to the fluorescence quenching of CDs. The limit of detection (LOD) for Cu2+ is 2.4 μM. When AA is added into the CDs + Cu2+ solution, Cu2+ is reduced by AA to Cu+, causing the fluorescence recovery of CDs. The fluorescent intensity linearly correlates with the concentration of AA in the range of 100-2800 μM with LOD of 60 μM. Besides, the probe has potential application for detection of AA in real samples such as VC tablets, orange juice, and fresh orange. The probe can also indirectly detect ACP that enzymatically hydrolyzes ascorbic acid-phosphate (AAP) to produce AA. This work expands the application of CDs in the multi-component detection and provides a facile fluorescent probe for detection of AA in real samples. Graphical abstract.
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Affiliation(s)
- Xin Ma
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Shijun Lin
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Yunfei Dang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China.
| | - Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China.
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China.
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54
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Panwar N, Soehartono AM, Chan KK, Zeng S, Xu G, Qu J, Coquet P, Yong KT, Chen X. Nanocarbons for Biology and Medicine: Sensing, Imaging, and Drug Delivery. Chem Rev 2019; 119:9559-9656. [DOI: 10.1021/acs.chemrev.9b00099] [Citation(s) in RCA: 238] [Impact Index Per Article: 47.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nishtha Panwar
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Alana Mauluidy Soehartono
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Kok Ken Chan
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Shuwen Zeng
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
- CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore 637553, Singapore
| | - Gaixia Xu
- Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Junle Qu
- Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Philippe Coquet
- CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore 637553, Singapore
- Institut d’Electronique, de Microélectronique et de Nanotechnologie (IEMN), CNRS UMR 8520—Université de Lille, 59650 Villeneuve d’Ascq, France
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
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55
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Pawar S, Togiti UK, Bhattacharya A, Nag A. Functionalized Chitosan-Carbon Dots: A Fluorescent Probe for Detecting Trace Amount of Water in Organic Solvents. ACS OMEGA 2019; 4:11301-11311. [PMID: 31460233 PMCID: PMC6648781 DOI: 10.1021/acsomega.9b01208] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 06/18/2019] [Indexed: 05/05/2023]
Abstract
A novel nanoprobe was designed and synthesized by functionalizing chitosan-carbon dots (CDs) with a modified bipyridine-based heterocyclic molecule, 4-(pyridine-2-yl)-3H-pyrrolo[2,3-c]quinoline (PPQ), to detect trace amount of water via fluorescence methods. The functionalized CDs (PPQ-CDs) were thoroughly characterized using dynamic light scattering, UV-vis, X-ray diffraction, Fourier transform infrared, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy, and NMR techniques. The modified fluorescence intensity of PPQ-CDs was found to be an excellent indicator for water in organic solvents. The PPQ-CDs showed very weak fluorescence intensity in organic solvents due to a possible photoinduced electron transfer (PET) process between PPQ pyrrole nitrogen and acceptor groups of CDs. However, sequential addition of trace amount of water led to continuous enhancement in the fluorescence intensity for the PPQ-CD nanocomposites. The mechanism was proposed to follow suppression of the PET process due to the formation of "free-ions" by the proton transfer from the CD carboxyl group to pyrrole nitrogen through water bridging. The limit of water detection was determined to be 0.023% (v/v) in DMSO.
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Affiliation(s)
- Shweta Pawar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Uday Kumar Togiti
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Anupam Bhattacharya
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Amit Nag
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
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56
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Label-free and washing-free alkaline phosphatase assay using a personal glucose meter. J Biol Eng 2019; 13:51. [PMID: 31178924 PMCID: PMC6551882 DOI: 10.1186/s13036-019-0182-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/27/2019] [Indexed: 11/23/2022] Open
Abstract
We herein describe a personal glucose meter (PGM)-based method for a label-free and washing-free determination of alkaline phosphatase (ALP) activity, which relies on the cascade enzymatic reactions promoted by hexokinase and pyruvate kinase to couple ALP activity with the amount of glucose. In principle, the presence of target ALP scavenges on adenosine 5′-triphosphate (ATP), a phosphate source for hexokinase-catalyzed reactions, and thus suppresses the ensuing cascade enzymatic reactions. As a result, the initial high amount of glucose is maintained and the amount of glucose, which is proportional to ALP activity, is simply measured by a hand-held PGM. Based on this novel strategy, we successfully determined the ALP activity down to 8.9 U/L with the high selectivity. In addition, the diagnostic capability of this method was demonstrated by reliably assaying the ALP activity in non-diluted human blood without any pretreatment steps.
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57
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Current advances of carbon dots based biosensors for tumor marker detection, cancer cells analysis and bioimaging. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.04.003] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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58
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Carneiro Cruz AA, Freire RM, Froelich DB, Alves de Lima AC, Muniz AR, Ferreira OP, Fechine PBA. Fluorescence Based Platform to Discriminate Protein Using Carbon Quantum Dots. ChemistrySelect 2019. [DOI: 10.1002/slct.201901014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Antônio Alvernes Carneiro Cruz
- Grupo de Química de Materiais Avançados (GQMat)Departamento de Química Analítica e Físico-QuímicaUniversidade Federal do Ceará – UFC, Campus do Pici CP 12100, CEP 60451–970 Fortaleza, CE Brazil
| | - Rafael Melo Freire
- Departamento de Física/CEDENNAUniversidad de Santiago de Chile USACH, Av. Ecuador 3493, Santiago Chile
| | - Deise Beatriz Froelich
- Departamento de Engenharia QuímicaUniversidade Federal do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Ari Clesius Alves de Lima
- NUTEC- Fundação Núcleo de Tecnologia Industrial do Ceará – Rua Prof° Rômulo Proença- Pici CEP: 60.440-552 Fortaleza, CE Brazil
| | - André Rodrigues Muniz
- Departamento de Engenharia QuímicaUniversidade Federal do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Odair Pastor Ferreira
- Laboratório de Materiais Funcionais Avançados (LaMFA)Departamento de FísicaUniversidade Federal do Ceará – UFC, Campus do Pici, Fortaleza – CE Brazil
| | - Pierre Basílio Almeida Fechine
- Grupo de Química de Materiais Avançados (GQMat)Departamento de Química Analítica e Físico-QuímicaUniversidade Federal do Ceará – UFC, Campus do Pici CP 12100, CEP 60451–970 Fortaleza, CE Brazil
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59
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Wang H, Ma C, Li Z, Wu K. An exonuclease-assisted fluorescence sensor for assaying alkaline phosphatase based on SYBR Green I. Mol Cell Probes 2019; 45:26-30. [PMID: 30981621 DOI: 10.1016/j.mcp.2019.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/08/2019] [Accepted: 04/08/2019] [Indexed: 01/27/2023]
Abstract
In this report, we propose a fast, reliable and convenient approach to determine the alkaline phosphatase (ALP) activity based on a label-free fluorescence strategy. Upon catalysis of ALP, dephosphorylated dsDNA hampers the λ exonuclease (λexo) cleavage, shows high affinity to SYBR Green I (SG I), resulting in a strong fluorescence emission peak at 520 nm. In the absence of ALP, the dsDNA with 5'-phosphoryl-termini could be employed as a substrate of λexo. After cleavage, a weak fluorescence emission peaks at 520 nm could be observed. The assay was both selective and sensitive, and the detection limit was found to be as low as 3 U/L. This method was utilized to evaluate Na3VO4 as ALP inhibitor. The method was successfully applied to the determination of the activity of ALP in spiked human serum samples.
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Affiliation(s)
- Huiyu Wang
- School of Life Sciences, Central South University, Changsha, 410013, China; XiangYa School of Medicine, Central South University, Changsha, 410013, China
| | - Changbei Ma
- School of Life Sciences, Central South University, Changsha, 410013, China.
| | - Zekun Li
- School of Life Sciences, Central South University, Changsha, 410013, China; XiangYa School of Medicine, Central South University, Changsha, 410013, China
| | - Kefeng Wu
- School of Life Sciences, Central South University, Changsha, 410013, China
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60
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Shandilya R, Bhargava A, Bunkar N, Tiwari R, Goryacheva IY, Mishra PK. Nanobiosensors: Point-of-care approaches for cancer diagnostics. Biosens Bioelectron 2019; 130:147-165. [PMID: 30735948 DOI: 10.1016/j.bios.2019.01.034] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/21/2018] [Accepted: 01/12/2019] [Indexed: 12/24/2022]
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61
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Han X, Han M, Ma L, Qu F, Kong RM, Qu F. Self-assembled gold nanoclusters for fluorescence turn-on and colorimetric dual-readout detection of alkaline phosphatase activity via DCIP-mediated fluorescence resonance energy transfer. Talanta 2019; 194:55-62. [DOI: 10.1016/j.talanta.2018.09.108] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/22/2018] [Accepted: 09/30/2018] [Indexed: 12/16/2022]
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62
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Cheng S, Shen B, Yuan W, Zhou X, Liu Q, Kong M, Shi Y, Yang P, Feng W, Li F. Time-Gated Ratiometric Detection with the Same Working Wavelength To Minimize the Interferences from Photon Attenuation for Accurate in Vivo Detection. ACS CENTRAL SCIENCE 2019; 5:299-307. [PMID: 30834318 PMCID: PMC6396381 DOI: 10.1021/acscentsci.8b00763] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Indexed: 05/07/2023]
Abstract
Luminescence imaging, exhibiting noninvasive, sensitive, rapid, and versatile properties, plays an important role in biomedical applications. It is usually unsuitable for direct biodetection, because the detected luminescence intensity can be influenced by various factors such as the luminescent substance concentration, the depth of the luminescent substance in the organism, etc. Ratiometric imaging may eliminate the interference due to the luminescent substance concentration on the working signal. However, the conventional ratiometric imaging mode has a limited capacity for in vivo signal acquisition and fidelity due to the highly variable and wavelength-dependent scattering and absorption process in biotissue. In this work, we demonstrate a general imaging mode in which two signals with the same working wavelength are used to perform ratiometric sensing ignoring the depth of the luminescent substance in the organism. Dual-channel decoding is achieved by time-gated imaging technology, in which the signals from lanthanide ions and fluorescent dyes are distinguished by their different luminescent lifetimes. The ratiometric signal is proven to be nonsensitive to the detection depth and excitation power densities; thus, we could utilize the working curve measured in vitro to determine the amount of target substance (hypochlorous acid) in vivo.
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63
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Ni P, Xie J, Chen C, Jiang Y, Lu Y, Hu X. Fluorometric determination of the activity of alkaline phosphatase and its inhibitors based on ascorbic acid-induced aggregation of carbon dots. Mikrochim Acta 2019; 186:202. [DOI: 10.1007/s00604-019-3303-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/03/2019] [Indexed: 12/16/2022]
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64
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Zhao D, Li J, Peng C, Zhu S, Sun J, Yang X. Fluorescence Immunoassay Based on the Alkaline Phosphatase Triggered in Situ Fluorogenic Reaction of o-Phenylenediamine and Ascorbic Acid. Anal Chem 2019; 91:2978-2984. [DOI: 10.1021/acs.analchem.8b05203] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Dan Zhao
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, Henan 471023, China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130012, China
| | - Juan Li
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, Henan 471023, China
| | - Chuanyun Peng
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, Henan 471023, China
| | - Shuyun Zhu
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Jian Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130012, China
| | - Xiurong Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130012, China
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65
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Optical, electrochemical and catalytic methods for in-vitro diagnosis using carbonaceous nanoparticles: a review. Mikrochim Acta 2019; 186:50. [DOI: 10.1007/s00604-018-3110-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/25/2018] [Indexed: 12/16/2022]
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66
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Zeng HH, Zhou ZY, Liu F, Deng J, Huang SY, Li GP, Lai PQ, Xie YP, Xiao W. Design and synthesis of a vanadate-based ratiometric fluorescent probe for sequential recognition of Cu2+ ions and biothiols. Analyst 2019; 144:7368-7377. [PMID: 31663528 DOI: 10.1039/c9an01518c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
YVO4:Eu3+@CDs core–shell nanomaterial was synthesized through a simple self-assembly of carbon dots (CDs) with YVO4:Eu3+, since the high affinity of oxygen-containing groups such as –COOH or –OH of CDs to the metal ions on the surface of YVO4:Eu3+.
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Affiliation(s)
- Hui-Hui Zeng
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Zhi-Ying Zhou
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Fang Liu
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Jie Deng
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Shu-Yun Huang
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Guo-Ping Li
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Pei-Qing Lai
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Yue-Ping Xie
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Wei Xiao
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
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67
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Han Y, Niu Y, Liu M, Niu F, Xu Y. A rational strategy to develop a boron nitride quantum dot-based molecular logic gate and fluorescent assay of alkaline phosphatase activity. J Mater Chem B 2019; 7:897-902. [DOI: 10.1039/c8tb02948b] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
By comparing the percentage of FL quenching and recovery of the BNQDs, a Fe3+-mediated FL quenching of BNQDs system was rationally designed for efficient ALP assay. Moreover, the aforementioned ensemble was exploited to newly construct a 2D-QD-based INH logic gate.
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Affiliation(s)
- Yaqian Han
- Institute for Graphene Applied Technology Innovation
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Yusheng Niu
- College of Life Sciences
- Qingdao University
- Qingdao 266003
- China
| | - Mengli Liu
- Institute for Graphene Applied Technology Innovation
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Fushang Niu
- Institute for Graphene Applied Technology Innovation
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Yuanhong Xu
- Institute for Graphene Applied Technology Innovation
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
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68
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Reshma R, Gupta B, Sharma R, Ghosh KK. Facile and visual detection of acetylcholinesterase inhibitors by carbon quantum dots. NEW J CHEM 2019. [DOI: 10.1039/c9nj02347j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sensitive and rapid detection of organophosphate toxicants is highly relevant and important in environmental protection and food safety.
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Affiliation(s)
- Reshma Reshma
- School of Studies in Chemistry
- Pt. Ravishankar Shukla University
- Raipur (C.G.) 492010
- India
| | - Bhanushree Gupta
- Centre for Basic Sciences
- Pt. Ravishankar Shukla University
- Raipur (C.G.) 492010
- India
| | - Rahul Sharma
- Department Of Plant Physiology
- Agri. Biochemistry
- Medicinal & Aromatic Plants
- Indira Gandhi Krishi Vishwavidyalaya
- Raipur (C.G.) 492012
| | - Kallol K. Ghosh
- School of Studies in Chemistry
- Pt. Ravishankar Shukla University
- Raipur (C.G.) 492010
- India
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69
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Li H, Ren J, Xu X, Ning L, Tong R, Song Y, Liao S, Gu W, Liu X. A dual-responsive luminescent metal–organic framework as a recyclable luminescent probe for the highly effective detection of pyrophosphate and nitrofurantoin. Analyst 2019; 144:4513-4519. [DOI: 10.1039/c9an00718k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Luminescent ZTMOF-1 can discriminately detect PPi and NFT with high selectivity, sensitivity and stability.
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Affiliation(s)
- Hui Li
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Jie Ren
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Xiufang Xu
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Liangmin Ning
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Ruoyan Tong
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Yao Song
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Shengyun Liao
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry and Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- China
| | - Wen Gu
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Xin Liu
- Collaborative Innovation Center of Chemical Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- College of Chemistry
- Nankai University
- Tianjin 300071
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70
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Determination of the activity of alkaline phosphatase based on aggregation-induced quenching of the fluorescence of copper nanoclusters. Mikrochim Acta 2018; 186:5. [DOI: 10.1007/s00604-018-3122-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 11/27/2018] [Indexed: 10/27/2022]
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71
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Song H, Wang H, Li X, Peng Y, Pan J, Niu X. Sensitive and selective colorimetric detection of alkaline phosphatase activity based on phosphate anion-quenched oxidase-mimicking activity of Ce(Ⅳ) ions. Anal Chim Acta 2018; 1044:154-161. [DOI: 10.1016/j.aca.2018.09.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/11/2018] [Accepted: 09/18/2018] [Indexed: 10/28/2022]
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72
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Zhang F, He X, Ma P, Sun Y, Wang X, Song D. Rapid aqueous synthesis of CuInS/ZnS quantum dots as sensor probe for alkaline phosphatase detection and targeted imaging in cancer cells. Talanta 2018; 189:411-417. [DOI: 10.1016/j.talanta.2018.07.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/02/2018] [Accepted: 07/11/2018] [Indexed: 02/04/2023]
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73
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Chan KK, Yap SHK, Yong KT. Biogreen Synthesis of Carbon Dots for Biotechnology and Nanomedicine Applications. NANO-MICRO LETTERS 2018; 10:72. [PMID: 30417004 PMCID: PMC6208800 DOI: 10.1007/s40820-018-0223-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 09/02/2018] [Indexed: 05/14/2023]
Abstract
Over the past decade, carbon dots have ignited a burst of interest in many different fields, including nanomedicine, solar energy, optoelectronics, energy storage, and sensing applications, owing to their excellent photoluminescence properties and the easiness to modify their optical properties through doping and functionalization. In this review, the synthesis, structural and optical properties, as well as photoluminescence mechanisms of carbon dots are first reviewed and summarized. Then, we describe a series of designs for carbon dot-based sensors and the different sensing mechanisms associated with them. Thereafter, we elaborate on recent research advances on carbon dot-based sensors for the selective and sensitive detection of a wide range of analytes, including heavy metals, cations, anions, biomolecules, biomarkers, nitroaromatic explosives, pollutants, vitamins, and drugs. Lastly, we provide a concluding perspective on the overall status, challenges, and future directions for the use of carbon dots in real-life sensing.
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Affiliation(s)
- Kok Ken Chan
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Stephanie Hui Kit Yap
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
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74
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Feng X, Ashley J, Zhou T, Sun Y. Fluorometric determination of doxycycline based on the use of carbon quantum dots incorporated into a molecularly imprinted polymer. Mikrochim Acta 2018; 185:500. [DOI: 10.1007/s00604-018-2999-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/09/2018] [Indexed: 11/28/2022]
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75
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Chen Z, Wang S, Yang X. Phosphorus-doped carbon dots for sensing both Au (III) and l-methionine. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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76
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On-off-on luminescent pyrophosphate probe based on the use of Mn-doped ZnS quantum dots and using Eu(III) as a mediator. Mikrochim Acta 2018; 185:480. [PMID: 30259119 DOI: 10.1007/s00604-018-3003-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 09/09/2018] [Indexed: 01/12/2023]
Abstract
A selective phosphorescent on-off-on probe with long decay lifetime has been designed for the detection of pyrophosphate ions (PPi). The detection scheme is based on the use of europium(III)-modulated Mn(II)-doped ZnS quantum dots capped with N-acetyl-L-cysteine. Both the aggregation of quantum dots and electron transfer induced by Eu(III) ions cause phosphorescence to be quenched ("off" state). Phosphorescence is, however, restored on addition of PPi to the system ("on" state). The effect is attributed to the removal of Eu(III) from the carboxy groups on the surface of the quantum dots owing to the stronger interaction between PPi and Eu(III). A linear relationship exists between phosphorescence intensity (best measured at excitation/emission wavelengths of 316/594 nm) and PPi concentration in the 400 nM to 6000 nM with a detection limit of 145 nM. An additional attractive feature is provided by the long-lived phosphorescence (1920 μs) of the quantum dots. It can be used to eliminate interference by short-lived fluorescence in biological samples by performing time resolved measurements. The probe was applied to the determination of PPi in spiked in urine samples and gave recoveries in the range from 98 to 105% with RSDs of <2.0%. Graphical abstract Schematic of a long-lived phosphorescent on-off-on probe for the sensitive and selective detection of pyrophosphate ions (PPi). It is based on the use of Eu(III)-modulated Mn(II)-doped ZnS quantum dots (QDs). Phosphorescence is quenched of QDs after the addition of Eu3+but restored after the addition of PPi.
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77
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Hu L, Zhang Q, Gan X, Yin W, Fu W. Switchable fluorescence of MoS 2 quantum dots: a multifunctional probe for sensing of chromium(VI), ascorbic acid, and alkaline phosphatase activity. Anal Bioanal Chem 2018; 410:7551-7557. [PMID: 30242729 DOI: 10.1007/s00216-018-1374-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/06/2018] [Accepted: 09/12/2018] [Indexed: 11/26/2022]
Abstract
A simple strategy for modulating the fluorescence of MoS2 quantum dots (QDs) is described. The fluorescence of MoS2 QDs was firstly switched off by the addition of Cr(VI), and the quenched fluorescence was further switched on by introducing ascorbic acid (AA) into the mixture. The fluorescence quenching of MoS2 QDs by Cr(VI) was attributed to the fluorescence inner filter effect. After the addition of AA, Cr(VI) was reduced to Cr(III), and the fluorescence was restored. This finding has been applied for the fluorescent sensing of Cr(VI) in drinking water and AA in serum samples. In addition, the present method has been extended for turn-on sensing of an important biomarker alkaline phosphatase (ALP). There is a linear relationship between the fluorescence intensity and the concentrations of ALP in the range from 2.5 to 50 U/L, and the limit of detection is 0.34 U/L. The results showed MoS2 QDs hold great potential as a multifunctional fluorescent probe for the detection of metal ions, biological small molecules, and proteins. Graphical abstract The fluorescence of MoS2 QDs can be switched off by Cr(VI), and the quenched fluorescence can be further switched on by the addition of ascorbic acid or enzymatically generated ascorbic acid. This allows the selective detection of Cr(VI), ascorbic acid, and alkaline phosphatase based on the fluorescence of MoS2 QDs.
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Affiliation(s)
- Lianzhe Hu
- Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing, 401331, China.
| | - Qian Zhang
- Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing, 401331, China
| | - Xiaoyan Gan
- Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing, 401331, China
| | - Weiling Yin
- Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing, 401331, China
| | - Wensheng Fu
- Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing, 401331, China
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78
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A new copper mediated on-off assay for alkaline phosphatase detection based on MoOx quantum dots. Microchem J 2018. [DOI: 10.1016/j.microc.2018.05.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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79
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A Fluorescent Biosensors for Detection Vital Body Fluids' Agents. SENSORS 2018; 18:s18082357. [PMID: 30042294 PMCID: PMC6111579 DOI: 10.3390/s18082357] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/13/2018] [Accepted: 07/20/2018] [Indexed: 12/18/2022]
Abstract
The clinical applications of sensing tools (i.e., biosensors) for the monitoring of physiologically important analytes are very common. Nowadays, the biosensors are being increasingly used to detect physiologically important analytes in real biological samples (i.e., blood, plasma, urine, and saliva). This review focuses on biosensors that can be applied to continuous, time-resolved measurements with fluorescence. The material presents the fluorescent biosensors for the detection of neurotransmitters, hormones, and other human metabolites as glucose, lactate or uric acid. The construction of microfluidic devices based on fluorescence uses a variety of materials, fluorescent dyes, types of detectors, excitation sources, optical filters, and geometrical systems. Due to their small size, these devices can perform a full analysis. Microfluidics-based technologies have shown promising applications in several of the main laboratory techniques, including blood chemistries, immunoassays, nucleic-acid amplification tests. Of the all technologies that are used to manufacture microfluidic systems, the LTCC technique seems to be an interesting alternative. It allows easy integration of electronic and microfluidic components on a single ceramic substrate. Moreover, the LTCC material is biologically and chemically inert, and is resistant to high temperature and pressure. The combination of all these features makes the LTCC technology particularly useful for implementation of fluorescence-based detection in the ceramic microfluidic systems.
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80
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Ge P, Hou H, Cao X, Li S, Zhao G, Guo T, Wang C, Ji X. Multidimensional Evolution of Carbon Structures Underpinned by Temperature-Induced Intermediate of Chloride for Sodium-Ion Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800080. [PMID: 29938187 PMCID: PMC6010011 DOI: 10.1002/advs.201800080] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/13/2018] [Indexed: 05/18/2023]
Abstract
Different dimensions of carbon materials with various features have captured numerous interests due to their applications on the tremendous fields. Restricted by the raw materials and devices, the controlling of their morphology is a major challenge. Utilizing the catalytic features of the intermediates from the low-cost salts and polymerization of 0D carbon quantum dots (CQDs), 0D CQDs are expected to self-assemble into 1/2/3D carbon structures with the assistance of temperature-induced intermediates (e.g., ZnO, Ni, and Cu) from the salts (ZnCl2, NiCl2, and CuCl). The formation mechanisms are illustrated as follows: 1) the "orient induction" to evoke "vine style" growth mechanism of ZnO; 2) the "dissolution-precipitation" of Ni; and 3) the "surface adsorption self-limited" of Cu. Subsequently, the degree of graphitization, interlayer distance, and special surface area are investigated in detail. 1D structure from 700 °C as anode displays a high Na-storage capacity of 301.2 mAh g-1 at 0.1 A g-1 after 200 cycles and 107 mAh g-1 at 5.0 A g-1 after 5000 cycles. Quantitative kinetics analysis confirms the fundamentals of the enhanced rate capacity and the potential region of Na-insertion/extraction. This elaborate work opens up an avenue toward the design of carbon with multidimensions and in-depth understanding of their sodium-storage features.
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Affiliation(s)
- Peng Ge
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Hongshuai Hou
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Xiaoyu Cao
- College of ChemistryChemical and Environmental EngineeringHenan University of TechnologyZhengzhou450000China
| | - Sijie Li
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Ganggang Zhao
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Tianxiao Guo
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Chao Wang
- School of Energy Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu611731China
| | - Xiaobo Ji
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
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81
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Colorimetric logic gate for alkaline phosphatase based on copper (II)-based metal-organic frameworks with peroxidase-like activity. Anal Chim Acta 2018; 1004:74-81. [DOI: 10.1016/j.aca.2017.11.078] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/17/2017] [Accepted: 11/27/2017] [Indexed: 11/21/2022]
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82
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Polydopamine nanodots are viable probes for fluorometric determination of the activity of alkaline phosphatase via the in situ regulation of a redox reaction triggered by the enzyme. Mikrochim Acta 2018; 185:231. [PMID: 29594735 DOI: 10.1007/s00604-018-2769-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 03/10/2018] [Indexed: 12/21/2022]
Abstract
The authors describe an environmentally friendly and fast (~14 min) method for the synthesis of homogeneously distributed fluorescent polydopamine nanodots (PDA-NDs) using KMnO4 as the oxidant. Alkaline phosphatase (ALP) catalyzes the hydrolysis of ascorbic acid 2-phosphate to release free ascorbic acid which undergoes an in-situ redox reaction with KMnO4. Depending on the activity of ALP, more or less KMnO4 is consumed, and this affects the formation of the PDA-NDs. Based on this finding, a sensitive method was worked out to quantify the activity of ALP via real-time formation of fluorescent PDA-NDs. The fluorometric signal (best measured at excitation/emission peaks of 390/500 nm) is linear in the 1 to 50 mU·mL-1 ALP activity range, and the limit of the detection is as low as 0.94 mU·mL-1 (based on 3 σ/m). The method was successfully applied to the determination of ALP activity in spiked human serum and in MCF-7 cell lysates. It was also applied in a method to screen for inhibitors of ALP. Graphical abstract Schematic of a fluorometric method for the determination of alkaline phosphatase (ALP) activity. The method is based on the in-situ regulation of the formation of fluorescent polydopamine nanodots (PDA-NDs) through the competition between the KMnO4-induced polymerization of dopamine and ALP-directed ascorbic acid 2-phosphate (Asc-2P) hydrolysis. AA: Ascorbic acid.
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83
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Qu JH, Wei Q, Sun DW. Carbon dots: Principles and their applications in food quality and safety detection. Crit Rev Food Sci Nutr 2018; 58:2466-2475. [DOI: 10.1080/10408398.2018.1437712] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jia-Huan Qu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
- Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Qingyi Wei
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
- Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
- Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
- Food Refrigeration and Computerised Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland
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84
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Gao H, Zhao X, Chen S. AIEgen-Based Fluorescent Nanomaterials: Fabrication and Biological Applications. Molecules 2018; 23:E419. [PMID: 29443927 PMCID: PMC6017469 DOI: 10.3390/molecules23020419] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 12/21/2022] Open
Abstract
In recent years, luminogens with the feature of aggregation-induced emission (AIEgen) have emerged as advanced luminescent materials for fluorescent nanomaterial preparation. AIEgen-based nanomaterials show enhanced fluorescence efficiency and superior photostability, which thusly offer unique advantages in biological applications. In this review, we will summarize the fabrication methods of AIEgen-based nanomaterials and their applications in in vitro/in vivo imaging, cell tracing, photodynamic therapy and drug delivery, focusing on the recent progress.
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Affiliation(s)
- Hui Gao
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong, China.
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Sijie Chen
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong, China.
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85
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Pereira da Silva Neves MM, González-García MB, Pérez-Junquera A, Hernández-Santos D, Fanjul-Bolado P. Quenching of graphene quantum dots fluorescence by alkaline phosphatase activity in the presence of hydroquinone diphosphate. LUMINESCENCE 2018; 33:552-558. [DOI: 10.1002/bio.3445] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 11/16/2017] [Accepted: 11/20/2017] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | | | - Pablo Fanjul-Bolado
- DropSens S.L; Ed. CEEI, Parque Tecnológico de Asturias Llanera Asturias Spain
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86
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Tang Z, Zhang H, Ma C, Gu P, Zhang G, Wu K, Chen M, Wang K. Colorimetric determination of the activity of alkaline phosphatase based on the use of Cu(II)-modulated G-quadruplex-based DNAzymes. Mikrochim Acta 2018; 185:109. [DOI: 10.1007/s00604-017-2628-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/19/2017] [Indexed: 12/25/2022]
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87
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Paul S, Gayen K, Nandi N, Banerjee A. Carbon nanodot-induced gelation of a histidine-based amphiphile: application as a fluorescent ink, and modulation of gel stiffness. Chem Commun (Camb) 2018; 54:4341-4344. [DOI: 10.1039/c7cc09824c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This study demonstrates carbon dots induced hydrogelation of an amino acid based amphiphile and the potential use of this gel as a fluorescent ink.
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Affiliation(s)
- Subir Paul
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Kousik Gayen
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Nibedita Nandi
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Arindam Banerjee
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata
- India
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88
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Song P, Liu Q, Zhang Y, Liu W, Meng M, Yin Y, Xi R. The chemical redox modulated switch-on fluorescence of carbon dots for probing alkaline phosphatase and its application in an immunoassay. RSC Adv 2018. [DOI: 10.1039/c7ra11784a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The chemical redox modulated switch-on fluorescence of carbon dots for detecting ALP and human IgG.
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Affiliation(s)
- Pei Song
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Qian Liu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Ying Zhang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Wei Liu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Meng Meng
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Yongmei Yin
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Rimo Xi
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
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89
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Shu C, Li D, Li T, Ji S, Ding L. Sensitive and accurate detection of ALP activity using a fluorescence on–off–on switch and mass barcode signal amplification. RSC Adv 2018; 8:36527-36533. [PMID: 35558943 PMCID: PMC9088893 DOI: 10.1039/c8ra06973e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/10/2018] [Indexed: 12/27/2022] Open
Abstract
Alkaline phosphatase (ALP) is an important biomarker for many diseases. Therefore, the sensitive and accurate detection of ALP activity is essential for fundamental biochemical processes and clinic diagnosis. Herein, we design a fluorescent on–off–on switch for sensitive and visual detection of ALP activity. Meanwhile, mass barcode-modified quantum dots (QDs) amplified the LC-MS/MS detection signal in complex biological samples. Firstly, the QDs were modified with phosphorylated Gly-Gly-Phe-Phe-Tyr (OPO3H2) peptide (GGFFYp) and the mass barcode. The fluorescence of QDs-SS-Yp was quenched by fluorescence resonance energy transfer (FRET) between QDs-SS-Yp and dansyl chloride (DNS). ALP can hydrolyze the phosphorylated peptide to form peptide self-assemblies on the QDs-SS-Yp surfaces. The effective separation distance between the QDs-SS-Yp donor and DNS acceptor becomes larger, restricting FRET between the QDs-SS-Yp and DNS. At this point, the obvious QDs-SS-Yp fluorescence signal can be restored. However, the absence of ALP results in no peptide self-assembly on the QDs-SS-Yp surface and no obvious QDs-SS-Yp fluorescence signal was detected. Therefore, the ALP activity can be analyzed according to the degree of fluorescence restoration by the fluorescence on–off–on switch. Finally, the small tag molecules obtained by cleaving the disulfide bond of the QDs-SS-Yp as a mass barcode were used to amplify the LC-MS/MS detection signal. The proposed approach shows a good linear relationship (from 0.01 to 2.4 U L−1) and has the significant advantage of a low detection limit of 0.001 U L−1. The sensitive and accurate detection of ALP activity using a fluorescence on–off–on switch and mass barcode signal amplification.![]()
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Affiliation(s)
- Chang Shu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
- Ministry of Education
- Nanjing 210009
- China
- Department of Pharmaceutical Analysis
| | - Duo Li
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
- Ministry of Education
- Nanjing 210009
- China
- Department of Pharmaceutical Analysis
| | - Tengfei Li
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
- Ministry of Education
- Nanjing 210009
- China
- Department of Pharmaceutical Analysis
| | - Shunli Ji
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
- Ministry of Education
- Nanjing 210009
- China
- Department of Pharmaceutical Analysis
| | - Li Ding
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
- Ministry of Education
- Nanjing 210009
- China
- Department of Pharmaceutical Analysis
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90
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Mei Y, Hu Q, Zhou B, Zhang Y, He M, Xu T, Li F, Kong J. Fluorescence quenching based alkaline phosphatase activity detection. Talanta 2018; 176:52-58. [DOI: 10.1016/j.talanta.2017.07.095] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/24/2017] [Accepted: 07/31/2017] [Indexed: 01/15/2023]
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91
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Yuan L, Niu Y, Li R, Zheng L, Wang Y, Liu M, Xu G, Huang L, Xu Y. Molybdenum oxide quantum dots prepared via a one-step stirring strategy and their application as fluorescent probes for pyrophosphate sensing and efficient antibacterial materials. J Mater Chem B 2018; 6:3240-3245. [DOI: 10.1039/c8tb00475g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
MoOx QDs were prepared using a one-step stirring treatment of MoO3 powder in DMSO. They can be used as efficient fluorescent probes and antibacterial materials.
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Affiliation(s)
- Lili Yuan
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
| | - Yusheng Niu
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
| | - Ronggui Li
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
| | - Lanhong Zheng
- Yellow Sea Fisheries Research Institute
- Chinese Academy of Fishery Sciences
- Qingdao 266071
- China
| | - Yao Wang
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
| | - Mengli Liu
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
| | - Gengfang Xu
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
| | - Lei Huang
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
| | - Yuanhong Xu
- College of Life Sciences
- Qingdao University
- Qingdao 266071
- China
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92
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Meng Z, Wu S, Zhong L, Zeng M, Sun X, Li L, Zhang S. Rhodamine B derivatives-modified upconversion nanoparticles as a fluorescent turn-off–on sensor for the highly sensitive detection of Cu2+ and pyrophosphate. RSC Adv 2018; 8:38075-38080. [PMID: 35558582 PMCID: PMC9089887 DOI: 10.1039/c8ra08090a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 10/29/2018] [Indexed: 12/21/2022] Open
Abstract
Rhodamine B derivatives (RBP)-modified UCNPs (UCNPs@mSiO2–RBP) were developed as a fluorescent turn-off–on sensor based on FRET and IFE to detect Cu2+ and pyrophosphate (PPi) with a wide linear response range (0–10 μM for Cu2+ and 5–35 μM for PPi, much wider than that reported previously) and high sensibility (117 nM for Cu2+ and 70 nM for PPi). The MTT experiments and the bioimaging experiments show its promising prospect in tissue imaging. A new fluorescent turn-off–on sensor was developed based on the the rhodamine B derivatives (RBP) modified UCNPs to detect Cu2+ and pyrophosphate (PPi).![]()
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Affiliation(s)
- Zhipeng Meng
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Suli Wu
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Linghua Zhong
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Min Zeng
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xiaoqian Sun
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Lu Li
- Qingdao University of Science and Technology, 53 Zhengzhou Road
- Qingdao 266000
- P. R. China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
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93
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HUANG H, WANG B, CHEN M, ZHANG W, LI Y, LIU Z. A Graphene Quantum Dots-Enzyme Hybrid System for the Fluorescence Assay of Alkaline Phosphatase Activity and Inhibitor Screening. ANAL SCI 2018; 34:131-136. [DOI: 10.2116/analsci.34.131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Hui HUANG
- College of Food Science and Engineering, Jilin University
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University
| | - Bingdi WANG
- College of Food Science and Engineering, Jilin University
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University
| | - Meng CHEN
- College of Food Science and Engineering, Jilin University
| | - Wenjing ZHANG
- College of Food Science and Engineering, Jilin University
| | - Yongxin LI
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
| | - Zhenning LIU
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University
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94
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Hu JJ, Bai XL, Liu YM, Liao X. Functionalized carbon quantum dots with dopamine for tyrosinase activity analysis. Anal Chim Acta 2017; 995:99-105. [DOI: 10.1016/j.aca.2017.09.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 09/17/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
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95
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Feng H, Qian Z. Functional Carbon Quantum Dots: A Versatile Platform for Chemosensing and Biosensing. CHEM REC 2017; 18:491-505. [PMID: 29171708 DOI: 10.1002/tcr.201700055] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 11/14/2017] [Indexed: 12/17/2022]
Abstract
Carbon quantum dot has emerged as a new promising fluorescent nanomaterial due to its excellent optical properties, outstanding biocompatibility and accessible fabrication methods, and has shown huge application perspective in a variety of areas, especially in chemosensing and biosensing applications. In this personal account, we give a brief overview of carbon quantum dots from its origin and preparation methods, present some advance on fluorescence origin of carbon quantum dots, and focus on development of chemosensors and biosensors based on functional carbon quantum dots. Comprehensive advances on functional carbon quantum dots as a versatile platform for sensing from our group are included and summarized as well as some typical examples from the other groups. The biosensing applications of functional carbon quantum dots are highlighted from selective assays of enzyme activity to fluorescent identification of cancer cells and bacteria.
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Affiliation(s)
- Hui Feng
- Department of Chemistry, College of Life Science and Chemistry, Zhejiang Normal University, Yingbin Road 688, Jinhua, Zhejiang Province, People's Republic of China
| | - Zhaosheng Qian
- Department of Chemistry, College of Life Science and Chemistry, Zhejiang Normal University, Yingbin Road 688, Jinhua, Zhejiang Province, People's Republic of China
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96
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Zhang J, Lu X, Lei Y, Hou X, Wu P. Exploring the tunable excitation of QDs to maximize the overlap with the absorber for inner filter effect-based phosphorescence sensing of alkaline phosphatase. NANOSCALE 2017; 9:15606-15611. [PMID: 28990619 DOI: 10.1039/c7nr03673f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The inner filter effect (IFE) is an effective way for fluorescence modulation and thus has been extensively explored for the development of fluorescence assays. Theoretically, the key to maximize the sensitivity of IFE-based fluorescence assays is to enlarge the overlap between the absorption of the absorber and the excitation/emission of the fluorophore. Therefore, in this work, the tunable excitation of quantum dots (QDs) was explored for screening of the IFE pair having the best IFE-based assay sensitivity. A series of QDs, including CdTe QDs with different sizes, carbon dots, Cu-doped CdS QDs, and Mn-doped ZnS QDs, were investigated. PNPP (p-nitrophenylphosphate) was chosen as the absorber since its absorption overlapped with the above QDs. Besides, it can be catalytically converted to p-nitrophenol (PNP) by alkaline phosphatase (ALP) together with an absorption spectrum change (red-shift). Interestingly, it was found that the IFE efficiency of different PNPP-QD pairs increased almost linearly with the corresponding spectral overlap, and Mn-doped ZnS QDs were eventually chosen for the IFE assay of ALP because of the maximum spectral overlap and thus the best sensitivity. A simple and sensitive turn-on phosphorescence ALP assay was developed, with a detection limit of 4 × 10-4 U L-1. Because of the high sensitivity, we also found that ALP of different origins possessed different enzymatic activities. The developed ALP phosphorescence assay was successfully employed for the analysis of ALP in serum samples.
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Affiliation(s)
- Jinyi Zhang
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
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97
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Sensitive detection of alkaline phosphatase by switching on gold nanoclusters fluorescence quenched by pyridoxal phosphate. Biosens Bioelectron 2017; 95:8-14. [DOI: 10.1016/j.bios.2017.03.073] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/11/2017] [Accepted: 03/13/2017] [Indexed: 12/15/2022]
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98
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Bhattacharya S, Sarkar R, Chakraborty B, Porgador A, Jelinek R. Nitric Oxide Sensing through Azo-Dye Formation on Carbon Dots. ACS Sens 2017; 2:1215-1224. [PMID: 28770991 DOI: 10.1021/acssensors.7b00356] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Carbon dots (C-dots) prepared through heating of aminoguanidine and citric acid enable bimodal (colorimetric and fluorescence) detection of nitric oxide (NO) in aqueous solutions. The C-dots retained the functional units of aminoguanidine, which upon reaction with NO produced surface residues responsible for the color and fluorescence transformations. Notably, the aminoguanidine/citric acid C-dots were noncytotoxic, making possible real-time and high sensitivity detection of NO in cellular environments. Using multiprong spectroscopic and chromatography analyses we deciphered the molecular mechanism accounting for the NO-induced structural and photophysical transformations of the C-dots, demonstrating for the first time N2 release and azo dye formation upon the C-dots' surface.
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Affiliation(s)
- Sagarika Bhattacharya
- Department of Chemistry, ‡The Shraga Segal Department of Microbiology, Immunology
and Genetics, Faculty of Health Sciences, and §Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Rhitajit Sarkar
- Department of Chemistry, ‡The Shraga Segal Department of Microbiology, Immunology
and Genetics, Faculty of Health Sciences, and §Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Biswarup Chakraborty
- Department of Chemistry, ‡The Shraga Segal Department of Microbiology, Immunology
and Genetics, Faculty of Health Sciences, and §Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Angel Porgador
- Department of Chemistry, ‡The Shraga Segal Department of Microbiology, Immunology
and Genetics, Faculty of Health Sciences, and §Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Raz Jelinek
- Department of Chemistry, ‡The Shraga Segal Department of Microbiology, Immunology
and Genetics, Faculty of Health Sciences, and §Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
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99
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Biosensor of alkaline phosphatase based on non-fluorescent FRET of Eu3+-doped oxide nanoparticles and phosphorylated peptide labeled with cyanine dye. Anal Bioanal Chem 2017; 409:5491-5500. [DOI: 10.1007/s00216-017-0485-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 04/15/2017] [Accepted: 06/22/2017] [Indexed: 10/19/2022]
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100
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Hu Y, Geng X, Zhang L, Huang Z, Ge J, Li Z. Nitrogen-doped Carbon Dots Mediated Fluorescent on-off Assay for Rapid and Highly Sensitive Pyrophosphate and Alkaline Phosphatase Detection. Sci Rep 2017; 7:5849. [PMID: 28724997 PMCID: PMC5517519 DOI: 10.1038/s41598-017-06356-z] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 06/09/2017] [Indexed: 01/06/2023] Open
Abstract
In this report, a novel fluorescent sensing platform using nitrogen-doped carbon dots (N-CDs) as probes for fluorescence signal transmission has been designed for the detection of significant biomolecules pyrophosphate (PPi) and alkaline phosphatase (ALP). The high fluorescent N-CDs could be selectively quenched by Cu2+, and recovered by the addition of PPi because PPi preferentially binds to Cu2+. Once ALP was introduced into the system, ALP can specifically hydrolyze PPi into Pi, the intense fluorescence of N-CDs could be quenched again due to the recombination of the as-released Cu2+ with N-CDs. So, fluorescence of N-CDs is regulated by an ALP-triggered reaction. Based on this strategy, we demonstrated that N-CDs could serve as a very effective fluorescent sensing platform for label-free, sensitive and selective detection of PPi and ALP with low detection limit of 0.16 μM and 0.4 U/L for PPi and ALP, respectively. Moreover, the assay time is just around 0.5 min for PPi and 30 min for ALP. This developed strategy shows remarkable advantages including sensitive, rapid, simple, convenient, and low-cost and so forth. Furthermore, this method was also successfully applied to monitor ALP in human serum, which indicates its great potential for practical applications in biological and clinical diagnosis.
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Affiliation(s)
- Yalei Hu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Xin Geng
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Lin Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Zhongming Huang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Jia Ge
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P.R. China.
| | - Zhaohui Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P.R. China.
- Institute of Chemical Biology and Nanomedicine, Hunan University, Changsha, 410082, P.R. China.
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