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Zhu S, Liu L, Sun J, Shi F, Zhao XE. A ratiometric fluorescence assay for bleomycin based on dual-emissive chameleon DNA-templated silver nanoclusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119521. [PMID: 33581576 DOI: 10.1016/j.saa.2021.119521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/26/2020] [Accepted: 01/20/2021] [Indexed: 06/12/2023]
Abstract
The authors design dual-emissive DNA-templated silver nanoclusters (DNA-AgNCs) for ratiometric fluorescence sensing bleomycin (BLM) for the first time. A hairpin probe containing two different C-rich DNA templates at two terminals is used to synthesize chameleon DNA-AgNCs, which possess two emission peaks when they are in close proximity. A strong emission is founded at 622 nm (λex = 570 nm) while a weak one is located at 572 nm (λex = 504 nm). Meanwhile, the loop of this probe contains the scission site (5'-GC-3') of BLM. The loop can be cleaved into two parts by BLM-Fe(II) complex, inducing the two DNA-AgNCs away from each other. The fluorescence intensity at 572 nm and 622 nm increases and decreases, respectively. Such chameleon DNA-AgNCs exhibit an obvious fluorescence discoloration from orange to yellow. Therefore, a sensitive ratiometric fluorescent strategy for BLM detection has been proposed with the detection limit of 67 pM. Finally, this ratiometric method is used to detect BLM in serum samples.
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Affiliation(s)
- Shuyun Zhu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, PR China
| | - Lingyuan Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, PR China
| | - Jing Sun
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, PR China
| | - Fengjin Shi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, PR China
| | - Xian-En Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, PR China.
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2
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Ou L, Yang F, Luo J, Duan J, Sun A, Chen L, Wang L. A turn‐on fluorescence assay for heparin based on
DNA
‐templated gold nanoclusters via
ET. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- LiJuan Ou
- College of Material and Chemical Engineering Hunan Institute of Technology Hengyang P. R. China
| | - FaGuo Yang
- College of Material and Chemical Engineering Hunan Institute of Technology Hengyang P. R. China
| | - JianXin Luo
- College of Material and Chemical Engineering Hunan Institute of Technology Hengyang P. R. China
| | - JiaoJie Duan
- College of Material and Chemical Engineering Hunan Institute of Technology Hengyang P. R. China
| | - Aiming Sun
- College of Material and Chemical Engineering Hunan Institute of Technology Hengyang P. R. China
| | - LanLan Chen
- College of Material and Chemical Engineering Hunan Institute of Technology Hengyang P. R. China
| | - LingYun Wang
- College of Material and Chemical Engineering Hunan Institute of Technology Hengyang P. R. China
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3
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Guo F, Xia M, Sun J, Zhu S. A ratiometric fluorescence assay for bleomycin based on Cu 2+-triggered cascade reactions and nanoparticle-mediated autocatalytic reactions. NEW J CHEM 2021. [DOI: 10.1039/d1nj02111g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and facile method has been proposed for ratiometric fluorescence sensing of BLM based on the Cu2+-induced formation of two fluorescent probes (DFQ and DAP) with OPD as the precursor coupled with nanoparticle-mediated autocatalytic reactions.
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Affiliation(s)
- Fujin Guo
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province
- College of Food Science and Engineering
- Shandong Agricultural University
- Tai’an 271018
- China
| | - Meng Xia
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Jing Sun
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Xining 810001
- China
| | - Shuyun Zhu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
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4
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Benavides J, Quijada-Garrido I, García O. The synthesis of switch-off fluorescent water-stable copper nanocluster Hg 2+ sensors via a simple one-pot approach by an in situ metal reduction strategy in the presence of a thiolated polymer ligand template. NANOSCALE 2020; 12:944-955. [PMID: 31840709 DOI: 10.1039/c9nr08439h] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The fabrication of stable fluorescent copper nanoclusters (CuNCs) in aqueous media is still challenging, despite the low price and potential biomedical applications. Herein, we report a facile and efficient strategy for assembling CuNCs using multifunctional thiolated copolymers with pH and thermoresponsive features. The new nanohybrids are formed via a simple one-pot approach through the reduction of a copper salt with hydrazine in the presence of a multithiolated polymer, which provides a template during nanocluster assembly and further efficient protection against oxidation and aggregation. Furthermore, the thermo- and pH-responsive properties of the pristine copolymers endow the nanohybrids with these stimuli-responsive features. The thiol content and the macromolecular size of the polymer ligands exert strong influences on the final photophysical properties of these new hybrid luminescent nanoclusters. The existence of stable bright greenish-yellow emission in water over long periods of time, the high photostability under UV irradiation and the strong oxidation resistance toward hydrogen peroxide of the hybrid CuNCs suggest that they have great promise for nanomedicine, bioassay and nanosensor use. Furthermore, the polymeric CuNCs obtained have been successfully tested as optical switch-off sensors for the sensitive and highly selective detection of Hg2+ in the presence of other metal ions in liquid and solid states. Finally, we demonstrate the practical application of the new hybrid to Hg2+ detection in human urine.
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Affiliation(s)
- Jesús Benavides
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva, 3, E-28006-Madrid, Spain.
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5
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Lin YS, Chiu TC, Hu CC. Fluorescence-tunable copper nanoclusters and their application in hexavalent chromium sensing. RSC Adv 2019; 9:9228-9234. [PMID: 35517680 PMCID: PMC9062047 DOI: 10.1039/c9ra00916g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 03/15/2019] [Indexed: 12/25/2022] Open
Abstract
Generally, metal nanoclusters are synthesized using only a single ligand. Thus, the properties and applications of these nanomaterials are limited by the nature of the ligand used. In this study, we have developed a new synthetic strategy to prepare bi-ligand copper nanoclusters (Cu NCs). These bi-ligand Cu NCs are synthesized from copper ions, thiosalicylic acid, and cysteamine by a simple one-pot method, and they exhibit high quantum yields (>18.9%) and good photostability. Most interestingly, the fluorescence intensities and surface properties of the Cu NCs can be tailored by changing the ratio of the two ligands. Consequently, the bi-ligand Cu NCs show great promise as fluorescent probes. Accordingly, the Cu NCs were applied to the inner-filter-effect-based detection of hexavalent chromium in water. A wide linear range of 0.1–1000 μM and a low detection limit (signal-to-noise ratio = 3) of 0.03 μM was obtained. The recoveries for the real sample analysis were between 98.3 and 105.0% and the relative standard deviations were below 4.54%, demonstrating the repeatability and practical utility of this assay. Generally, metal nanoclusters are synthesized using only a single ligand.![]()
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Affiliation(s)
- Yu-Syuan Lin
- Department of Applied Science
- National Taitung University
- Taitung
- Republic of China
| | - Tai-Chia Chiu
- Department of Applied Science
- National Taitung University
- Taitung
- Republic of China
| | - Cho-Chun Hu
- Department of Applied Science
- National Taitung University
- Taitung
- Republic of China
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6
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Molecular beacon-templated silver nanoclusters as a fluorescent probe for determination of bleomycin via DNA scission. Mikrochim Acta 2018; 185:403. [DOI: 10.1007/s00604-018-2939-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 07/29/2018] [Indexed: 10/28/2022]
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7
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T DT, I N, N M, N B, G B, R N, D N. Fluorenone based fluorescent probe for selective "turn-on" detection of pyrophosphate and alanine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 199:465-471. [PMID: 29153841 DOI: 10.1016/j.saa.2017.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 11/02/2017] [Accepted: 11/04/2017] [Indexed: 06/07/2023]
Abstract
To sense biologically important entities with different size and dimensions, a fluorenone based fluorescent receptor was designed and synthesized. Probe 1 displayed a distinct fluorescence enhancement emission at 565nm for pyrophosphate and 530nm for alanine in polar solvent. The fluorescence titration experiments confirm 1:1 stoichiometric ratio with high-binding constant and very low limit of detection (LoD) values. Receptor 1 showed a highly selective and sensitive recognition to HP2O73- and to alanine over other competitive anions and amino acids. In addition, the fluorescence lifetime measurement and reversible binding study results support the practical importance of 1.
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Affiliation(s)
- Daniel Thangadurai T
- Department of Nanoscience and Technology, Sri Ramakrishana Engineering College, Coimbatore 641 022, Tamilnadu, India.
| | - Nithya I
- Department of Nanoscience and Technology, Sri Ramakrishana Engineering College, Coimbatore 641 022, Tamilnadu, India
| | - Manjubaashini N
- Department of Nanoscience and Technology, Sri Ramakrishana Engineering College, Coimbatore 641 022, Tamilnadu, India
| | - Bhuvanesh N
- Department of Chemistry, Karunya University, Coimbatore 641 115, Tamilnadu, India
| | - Bharathi G
- Department of Physics, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Nandhakumar R
- Department of Chemistry, Karunya University, Coimbatore 641 115, Tamilnadu, India
| | - Nataraj D
- Department of Physics, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
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8
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Deng HH, Li KL, Zhuang QQ, Peng HP, Zhuang QQ, Liu AL, Xia XH, Chen W. An ammonia-based etchant for attaining copper nanoclusters with green fluorescence emission. NANOSCALE 2018; 10:6467-6473. [PMID: 29568837 DOI: 10.1039/c7nr09449c] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Luminescent copper nanoclusters (CuNCs) constitute a very active research topic due to their unique properties and lower cost than gold and silver NCs. In this study, we report a new, facile, and rapid top-down etching method for synthesizing luminescent CuNCs, using Cu nanoparticles (CuNPs) as the precursor and ammonia (NH3) as the etchant. The etching mechanism is systematically investigated and the optical and structural properties of the obtained CuNCs are carefully studied. The NH3-triggered etching process is very fast and the newly generated CuNCs can emit strong green fluorescence with a high quantum yield. Moreover, by coupling the urease-catalyzed hydrolysis of urea with the NH3-induced etching of CuNPs, we developed a novel fluorescence turn-on assay for urea. The linear range for urea detection is from 0.25 to 5 mM, and the limit of detection is 0.01 mM. This novel sensing approach, with good sensitivity and excellent selectivity, is then successfully utilized to detect urea in human serum samples, demonstrating its great potential in clinical diagnosis. In addition, the proposed coupling method can be extended to monitor other analytes that influence the size-focusing etching process, allowing metal NCs to be used to construct diverse chemosensors and biosensors.
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Affiliation(s)
- Hao-Hua Deng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Ke-Lin Li
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Quan-Quan Zhuang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China. and Department of Pharmacy, Affiliated Quanzhou First Hospital of Fujian Medical University, Quanzhou 362000, China
| | - Hua-Ping Peng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Qiong-Qiong Zhuang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Ai-Lin Liu
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Wei Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
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9
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Li H, Wang C, Hou T, Li F. Amphiphile-Mediated Ultrasmall Aggregation Induced Emission Dots for Ultrasensitive Fluorescence Biosensing. Anal Chem 2017; 89:9100-9107. [DOI: 10.1021/acs.analchem.7b01797] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Haiyin Li
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People’s Republic of China
| | - Chuanfeng Wang
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People’s Republic of China
| | - Ting Hou
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People’s Republic of China
| | - Feng Li
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People’s Republic of China
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10
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A fluorescent aptasensing strategy for adenosine triphosphate detection using tris(bipyridine)ruthenium(II) complex containing six cyclodextrin units. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.11.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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