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Tian W, Wang S, Li X, Zhou M, Wu Y, Zhang J, Chen X. An automatic and smart platform for rapid detection of cadmium and lead simultaneously in rice using triple-amplified chemiluminescence immunoassay. Food Chem 2024; 437:137900. [PMID: 37918164 DOI: 10.1016/j.foodchem.2023.137900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/13/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Rapid detection of trace ions is urgently needed for large-scale screening to ensure food safety. This study developed an innovative and automatic strategy, based on a smart-designed platform for rapid detection of cadmium and lead in rice. As bridge antibody, the antigen was conjugated with goat anti-mouse immunoglobulin G labeled alkaline phosphatase. Meanwhile, a biotin-streptavidin system was introduced to micromagnetic particles, thus providing a triple-amplified chemiluminescence immunoassay with high sensitivity, accuracy and specificity. The limits of detection for cadmium and lead were 0.06 and 1.00 ng mL-1, respectively, within 30 min. The recoveries ranged from 89.81 to 114.92 %, with relative standard deviations less than 9.2 %. The results obtained agreed with those of inductively coupled plasma-mass spectrometry and certified reference materials. Additionally, the auto-operation avoided human errors as well as being convenient, fast, automatic and high-throughput. Therefore, this smart platform can be applied for large-scale Cd2+ and Pb2+ screening.
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Affiliation(s)
- Wei Tian
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Songxue Wang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Xiaomeng Li
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Minghui Zhou
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China.
| | - Yanxiang Wu
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Jieqiong Zhang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Xi Chen
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
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2
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Chiou YR, Pang HM, Huang YF, Chen CF. A Semi-Automatic Environmental Monitoring Device for Mercury and Cobalt Ion Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2303871. [PMID: 37817349 DOI: 10.1002/smll.202303871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/22/2023] [Indexed: 10/12/2023]
Abstract
A syringe-based, semi-automatic environmental monitoring device is developed for on-site detection of harmful heavy metal ions in water. This portable device consists of a spring-embedded syringe and a polydimethylsiloxane (PDMS) membrane-based flow regulator for semi-automatic fix-and-release fluidic valve actuation, and a paper-based analytical device (PAD) with two kinds of gold nanoclusters (AuNCs) for sensitive Hg2+ and Co2+ ion detection, respectively. The thickness of the elastic PDMS membrane can be adjusted to stabilize and modulate the flow rates generated by the pushing force provided by the spring attached to the plunger. Also, different spring constants can drastically alter the response time. People of all ages can extract the fix-volume sample solutions and then release them to automatically complete the detection process, ensuring high reliability and repeatability. The PAD comprises two layers of modified paper, and each layer is immobilized with bovine serum albumin-capped gold nanoclusters (R-AuNCs) and glutathione-capped gold clusters (G-AuNCs), respectively. The ligands functionalized on the surface of the AuNCs not only can fine-tune the optical properties of the nanoclusters but also enable specific and simultaneous detection of Hg2+ and Co2+ ions via metallophilic Au+ -Hg2+ interaction and the Co2+ -thiol complexation effect, respectively. The feasibility of the device for detecting heavy metal ions at low concentrations in various environmental water samples is demonstrated. The Hg2+ and Co2+ ions can be seen simultaneously within 20 min with detection limits as low as 1.76 nm and 0.27 µm, respectively, lower than those of the regulatory restrictions on water by the US Environmental Protection Agency and the European Union. we expect this sensitive, selective, portable, and easy-to-use device to be valid for on-site multiple heavy metal ion pollution screenings in resource-constrained settings.
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Affiliation(s)
- Yi-Ru Chiou
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan
- Graduate School of Advanced Technology, National Taiwan University, 106, Taipei, Taiwan
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Hao-Ming Pang
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan
| | - Yu-Fen Huang
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Chien-Fu Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan
- Graduate School of Advanced Technology, National Taiwan University, 106, Taipei, Taiwan
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Li S, Lin Z, Chen H, Luo Q, Han S, Huang K, Chen R, Zhan Y, Chen B, Yao H. Synthesis and Application of a Near-Infrared Light-Emitting Fluorescent Probe for Specific Imaging of Cancer Cells with High Sensitivity and Selectivity. Drug Des Devel Ther 2024; 18:29-41. [PMID: 38225973 PMCID: PMC10788685 DOI: 10.2147/dddt.s439038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 12/21/2023] [Indexed: 01/17/2024] Open
Abstract
Background The preclinical diagnosis of tumors is of great significance to cancer treatment. Near-infrared fluorescence imaging technology is promising for the in-situ detection of tumors with high sensitivity. Methods Here, a fluorescent probe was synthesized on the basis of Au nanoclusters with near-infrared light emission and applied to fluorescent cancer cell labeling. Near-infrared methionine-N-Hydroxy succinimide Au nanoclusters (Met-NHs-AuNCs) were prepared successfully by one-pot synthesis using Au nanoclusters, methionine, and N-Hydroxy succinimide as frameworks, reductants, and stabilizers, respectively. The specific fluorescence imaging of tumor cells or tissues by fluorescent probe was studied on the basis of SYBYL Surflex-DOCK simulation model of LAT1 active site of overexpressed receptor on cancer cell surface. The results showed that Met-NHs-AuNCs interacted with the surface of LAT1, and C_Score scored the conformation of the probe and LAT1 as five. Results Characterization and in vitro experiments were conducted to explore the Met-NHs-AuNCs targeted uptake of cancer cells. The prepared near-infrared fluorescent probe (Met-NHs-AuNCs) can specifically recognize the overexpression of L-type amino acid transporter 1 (LAT1) in cancer cells so that it can show red fluorescence in cancer cells. Meanwhile, normal cells (H9c2) have no fluorescence. Conclusion The fluorescent probe demonstrates the power of targeting and imaging cancer cells.
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Affiliation(s)
- Shaoguang Li
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Zhan Lin
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Haobo Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Qiu Luo
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Shengnan Han
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Kunlong Huang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Ruichan Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Yuying Zhan
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
| | - Bing Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
| | - Hong Yao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, FuJian, People’s Republic of China
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
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Zhu X, Song Y, Wang X, Zhou Y, Chai Y, Yuan R. Copper nanoclusters electrochemiluminescence with tunable near-infrared emission wavelength for ultrasensitive detection of matrix metalloproteinase-2. Biosens Bioelectron 2023; 238:115580. [PMID: 37595477 DOI: 10.1016/j.bios.2023.115580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/25/2023] [Accepted: 08/05/2023] [Indexed: 08/20/2023]
Abstract
Herein, the methionine (Met)/N-acetyl-L-cysteine (NAC) templated copper nanoclusters (Met/NAC-Cu NCs) with tunable near-infrared region (NIR) electrochemiluminescence (ECL) emission wavelength was firstly synthesized as emitter for the ultrasensitive detection of matrix metalloproteinase-2 (MMP-2). Significantly, the NAC played the role of template and reductant of cupric to acquire Cu NCs, and the surface defect regulator Met was used to connect NAC through -S-S- bond, which could heighten the surface defect of Cu NCs to continuously regulate the maximum ECL emission by successively controlling the molar ratio of Met and NAC, leading to the ECL emission wavelength of Cu NCs ranged from 680 nm to 750 nm. In addition, a rapid target triggered catalyst hairpin assembly (CHA) recycling amplification strategy was constructed through orderly and equidistantly arranging hairpin to increase its local concentration, resulting in greatly accelerated signal amplification efficiency and reaction rate. As a proof of concept, based on Met/NAC-Cu NCs as NIR ECL emitter and effective signal amplification tactic, a super-sensitive ECL biosensor was fabricated to detect target MMP-2 with the detection limit (LOD) as low as 1.65 fg/mL and successfully utilized for detecting of MMP-2 that from Hela and MCF-7 cancer cells. This research provided a wonderful avenue for regulating the optical performance of metal nanoclusters-based ECL emitters, and the developed neoteric NIR ECL emitter with the merits of less photochemical damage and deeper tissue penetration exhibited great potential in ultrasensitive biosensing and high-definition ECL imaging.
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Affiliation(s)
- Xiaochun Zhu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Yuxi Song
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Xiaofeng Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Ying Zhou
- College of Food Science, Southwest University, Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing, 400715, PR China
| | - Yaqin Chai
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
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Zhou H, Liu R, Pan G, Cao M, Zhang L. Unique Electron-Transfer-Mediated Electrochemiluminescence of AuPt Bimetallic Nanoclusters and the Application in Cancer Immunoassay. BIOSENSORS 2023; 13:bios13050550. [PMID: 37232911 DOI: 10.3390/bios13050550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023]
Abstract
Noble Metal nanoclusters (NCs) are promising electrochemiluminescence (ECL) emitters due to their amazing optical properties and excellent biocompatibility. They have been widely used in the detection of ions, pollutant molecules, biomolecules, etc. Herein, we found that glutathione-capped AuPt bimetallic NCs (GSH-AuPt NCs) emitted strong anodic ECL signals with triethylamine as co-reactants which had no fluorescence (FL) response. Due to the synergistic effect of bimetallic structures, the ECL signals of AuPt NCs were 6.8 and 94 times higher than those of monometallic Au and Pt NCs, respectively. The electric and optical properties of GSH-AuPt NCs differed from those of Au and Pt NCs completely. An electron-transfer mediated ECL mechanism was proposed. The excited electrons may be neutralized by Pt(II) in GSH-Pt and GSH-AuPt NCs, resulting in the vanished FL. Furthermore, abundant TEA radicals formed on the anode contributed electrons to the highest unoccupied molecular orbital of GSH-Au2.5Pt NCs and Pt(II), booming intense ECL signals. Because of the ligand effect and ensemble effect, bimetallic AuPt NCs exhibited much stronger ECL than GSH-Au NCs. A sandwich-type immunoassay for alpha fetoprotein (AFP) cancer biomarkers was fabricated with GSH-AuPt NCs as signal tags, which displayed a wide linear range from 0.01 to 1000 ng·mL-1 and a limit of detection (LOD) down to 1.0 pg·mL-1 at 3S/N. Compared to previous ECL AFP immunoassays, this method not only had a wider linear range but also a lower LOD. The recoveries of AFP in human serum were around 108%, providing a wonderful strategy for fast, sensitive, and accurate cancer diagnosis.
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Affiliation(s)
- Huiwen Zhou
- School of Science, Harbin Institute of Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen 518055, China
| | - Ruanshan Liu
- School of Science, Harbin Institute of Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen 518055, China
| | - Guangxing Pan
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen 518055, China
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Miaomiao Cao
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen 518055, China
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Ling Zhang
- School of Science, Harbin Institute of Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen 518055, China
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A copper ion-mediated on-off-on gold nanocluster for pyrophosphate sensing and bioimaging in cells. Anal Chim Acta 2023; 1249:340923. [PMID: 36868766 DOI: 10.1016/j.aca.2023.340923] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 01/30/2023] [Indexed: 02/09/2023]
Abstract
Herein, gold nanoclusters (AuNCs@EW@Lzm, AuEL) with the bright red fluorescence at 650 nm were prepared by egg white and lysozyme as double protein ligands, which exhibited good stability and high biocompatibility. The probe displayed highly selective detected pyrophosphate (PPi) based on Cu2+-mediated AuEL fluorescence quenching. Specifically, the fluorescence of AuEL was quenched once the Cu2+/Fe3+/Hg2+ is added to chelate with amino acids on the AuEL surface, respectively. Interestingly, the fluorescence of quenched AuEL-Cu2+ was significantly recovered by PPi, but not the other two. This phenomenon was attributed to the stronger bond between PPi and Cu2+ than that of Cu2+ with AuEL nanoclusters. The results demonstrated a good linear relationship between PPi concentration and the relative fluorescence intensity of AuEL-Cu2+ in the range of 131.00-685.40 μM with a detection limit of 2.56 μM. In addition, the quench AuEL-Cu2+ system can also be recovered in acidic environments (pH ≤ 5). And the as-synthesized AuEL showed excellent cell imaging and target the nucleus. Thus the fabrication of AuEL offers a facile strategy for efficient PPi assay and offers the potential for drug/gene delivery to the nucleus.
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Wang J, Pei J, Li G. Lanthanide ternary complex as a fluorescent probe for highly sensitive and selective detection of copper ions based on selective recognition and photoinduced electron transfer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122287. [PMID: 36603275 DOI: 10.1016/j.saa.2022.122287] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Copper ions have a very important role in human health, industrial and agricultural production. Herein, lanthanide ternary complex of 2,6-pyridinedicarboxylic acid (DPA)-Eu3+-polyethyleneimine (PEI) as a fluorescent probe was thus fabricated for highly sensitive and selective detection of copper ions. PEI itself is non-fluorescent, the PEI-Eu3+complex is also non-fluorescent, and PEI has specific recognition to copper ions due to its higher affinity ability to copper ion than other metal ions. It was found that Cu2+ ions cannot quench the characteristic fluorescence of Eu3+ in the DPA-Eu3+ system, while in the DPA-Eu3+-PEI system, Cu2+ ions can greatly quench the characteristic fluorescence of Eu3+ due to photoinduced electron transfer (PET). The luminescent and quenching mechanism was also discussed in detail. The DPA-Eu3+-PEI probe not only has high sensitivity and selectivity, but also has very rapid fluorescence response and the response time is only 1 min. A good linear relationship between the fluorescence ratios of F0/F and the concentrations of Cu2+ was obtained in the range of 0.02 ∼ 10.0 μM (R2 = 0.998), and the limit of detection (LOD) is 8.0 nM. The probe was successfully applied for the detection of Cu2+ ions in the lake and river water samples, wastewater and urine samples. This work may provide a new strategy for fabricating simple and effective fluorescence probe and a promising application for the rapid and on-site detection in environmental monitoring and biological fluids.
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Affiliation(s)
- Jiejie Wang
- College of Environment and Resources, Zhejiang A&F University, Hangzhou 311300, China
| | - Jianchuan Pei
- College of Environment and Resources, Zhejiang A&F University, Hangzhou 311300, China.
| | - Gaiyan Li
- Jinshan Environmental Monitoring Center, Shanghai 200540, China.
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Zhang C, Liang M, Shao C, Li Z, Cao X, Wang Y, Wu Y, Lu S. Visual Detection and Sensing of Mercury Ions and Glutathione Using Fluorescent Copper Nanoclusters. ACS APPLIED BIO MATERIALS 2023; 6:1283-1293. [PMID: 36788220 DOI: 10.1021/acsabm.3c00031] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Visual detection of mercury ions and glutathione is of great significance to public health and environmental issues. Herein, we developed a fluorescent sensor (l-Cys/CuNCs@ESM) based on the eggshell membrane (ESM) and red-emitting copper nanoclusters (CuNCs) by the in situ strategy via l-cysteine (l-Cys) as the reducing and protective agent for mercury ions and glutathione sensing visually. The as-prepared fluorescent product had good stability, portability, large Stokes shift (250 nm), and long fluorescence lifetime (7.3 μs). Notably, the l-Cys/CuNCs@ESM exhibited a specific fluorescence quenching response toward Hg2+. Moreover, the interaction between glutathione (GSH) and Hg2+ could subsequently recover the fluorescence effectively. Inspired by this "on-off-on" switch, the l-Cys/CuNCs@ESM was applied as the dual-sensing system for visual detection of mercury ions and glutathione integrating with the portable smartphone. The limit of detection (LOD) of Hg2+ is 1.1 μM for visualization and 0.52 μM for the fluorescence spectrometer. The corresponding LODs of GSH are 2.8 and 0.59 μM, respectively. This platform presents significant sensitivity, specificity, and stability, offering a promising potential for real-time/on-site sensing.
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Affiliation(s)
- Cheng Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Mengna Liang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Congying Shao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Ziwei Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Xue Cao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Yongxiang Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Yanan Wu
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, U.K
| | - Shun Lu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
- Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, South Dakota 57007, United States
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Sang F, Xiong T, Wang W, Pan J, Shi H, Zhao Y. A Simple Schiff Base as Fluorescent Probe for Detection of Al 3+ in Aqueous Media and its Application in Cells Imaging. J Fluoresc 2023; 33:177-184. [PMID: 36323832 DOI: 10.1007/s10895-022-03047-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 10/17/2022] [Indexed: 02/02/2023]
Abstract
A novel fluorescence probe for the detection of Al3+ was developed based on methionine protected gold nanoclusters (Met-AuNCs). A fluorescent Schiff base (an aldimine) is formed between the aldehyde group of salicylaldehyde (SA) and the amino groups of Met on the AuNCs, and developed for selective detection of Al3+ in aqueous solution. Al3+ can strongly bind with the Schiff base ligands, accompanied by the blue-shift and an obvious fluorescence emission enhancement at 455 nm. The limits of detection (LODs) of the probe are 2 pmol L-1 for Al3+. Moreover, the probe can successfully be used in fluorescence imaging of Al3+ in living cells (SHSY5Y cells), suggesting that the simple fluorescent probe has great potential use in biological imaging.
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Affiliation(s)
- Fuming Sang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, People's Republic of China.
| | - Tiedan Xiong
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, People's Republic of China
| | - Weijie Wang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, People's Republic of China
| | - Jianxin Pan
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, People's Republic of China
| | - Huahua Shi
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, People's Republic of China
| | - Yan Zhao
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, People's Republic of China
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10
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Kiwi juice stabilized gold nanoclusters for fluorescence turn-on detection of copper ions. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Phetcharee K, Sirisit N, Amonpattaratkit P, Manyam J, Paoprasert P. High‐performance Mg
2+
Sensors Based on Natural Rubber‐derived, Label‐free Carbon Dots. ChemistrySelect 2022. [DOI: 10.1002/slct.202201280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kulpriya Phetcharee
- Department of Chemistry Faculty of Science and Technology Thammasat University Pathumthani 12120 Thailand
| | - Natee Sirisit
- Department of Chemistry Faculty of Science and Technology Thammasat University Pathumthani 12120 Thailand
| | | | - Jedsada Manyam
- National Nanotechnology Center (NANOTEC) National Science and Technology Development Agency (NSTDA) Pathum Thani 12120 Thailand
| | - Peerasak Paoprasert
- Department of Chemistry Faculty of Science and Technology Thammasat University Pathumthani 12120 Thailand
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Palladium nanocluster-based fluorescent sensing platform via synergistic effects of inner filter effect and agglomeration-induced quenching for myoglobin determination. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02194-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Fan Y, Yu W, Liao Y, Jiang X, Wang Z, Cheng Z. Ratiometric detection of doxycycline in pharmaceutical based on dual ligands-enhanced copper nanoclusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120509. [PMID: 34688060 DOI: 10.1016/j.saa.2021.120509] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
A water-soluble, stable, simple and dual ligands (bovine serum albumin and L-histidine)-enhanced copper nanoclusters (BSA-CuNCs@L-His) was synthesized by one-step wet chemical method. Interestingly, the introduction of L-His ligand could improve evidently the quantum yields (QYs, 3.47%) and stability of BSA-CuNCs due to forming the stronger interaction of L-His and Cu and producing bigger diameter CuNCs by coordination-induced aggregation. Thus, a new ratiometric fluorescent probe (RF-probe) was successfully exploited for sensitively and selectively mensurating doxycycline (DOX) because DOX could simultaneously regulate the fluorescence (FL) intensities of BSA-CuNCs@L-His at 410 and 520 nm. The FL quenching of BSA-CuNCs@L-His at 410 nm by DOX was mainly originated from the static quenching process, while DOX could bind to Trp-212 in BSA from the skeleton of BSA-CuNCs@L-His by electrostatic interaction causing the appearance of new emission peak at 520 nm. The content of DOX was monitored by the RF-probe with a linear range of 0.05-14.0 μM and a LOD (limit of detection) and LOQ (limit of quantification) of 6.4 and 21.3 nM (at 3σ/slope and 10σ/slope). Moreover, compared to the standard HPLC method, the proposed RF-probe was extended to the detection of DOX in doxycycline hydrochloride (DOXH) tablets, DOXH injections and DOXH capsules with satisfactory results.
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Affiliation(s)
- Yucong Fan
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China
| | - Weihua Yu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China
| | - Yunwen Liao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China; Institute of Applied Chemistry, China West Normal University, Nanchong 637002, China
| | - Xiaohui Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China
| | - Zhonghua Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China
| | - Zhengjun Cheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China; Institute of Applied Chemistry, China West Normal University, Nanchong 637002, China.
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14
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Wu J, Li R, Liu S. A novel dual-emission fluorescent probe for ratiometric and visual detection of Cu 2+ ions and Ag + ions. Anal Bioanal Chem 2022; 414:3067-3075. [PMID: 35106615 DOI: 10.1007/s00216-022-03930-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/05/2021] [Accepted: 01/26/2022] [Indexed: 11/01/2022]
Abstract
In this work, the biomolecule glutathione was used to prepare cyan fluorescent carbon dots (GSH@CDs) by a hydrothermal method. The GSH@CDs were adopted as the scaffolds to synthesize fluorescent gold nanoclusters (GSH@CDs-Au NCs) with two independent emission peaks at 430 nm and 700 nm. A fluorescent method for the Cu2+ and Ag+ ion assay was established based on the fluorescence quenching or enhancement at 700 nm of GSH@CDs-Au NCs. The fluorescent test strips were successfully prepared for visual detection of Cu2+ ions and Ag+ ions based on GSH@CDs-Au NCs. In addition, GSH@CDs-Au NCs were found to possess well peroxidase-like activity.
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Affiliation(s)
- Jiang Wu
- College of Life and Health Sciences, Northeastern University, Shenyang, 110000, China
| | - Runyang Li
- College of Life and Health Sciences, Northeastern University, Shenyang, 110000, China
| | - Siyu Liu
- College of Life and Health Sciences, Northeastern University, Shenyang, 110000, China.
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15
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Wu X, Meng X, Hou B, Sun Z, Zhang Y, Li M. Rapid fluorescent color analysis of copper ions on a smart phone via ratiometric fluorescence sensor. Mikrochim Acta 2022; 189:67. [PMID: 35064839 DOI: 10.1007/s00604-022-05166-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 12/27/2021] [Indexed: 12/18/2022]
Abstract
A smartphone-assisted fluorescence color sensing system for rapid, convenient, and on-site detection of copper ions was developed. The ratiometric fluorescence sensor was fabricated by using silica-coated blue-light-emitting carbon dots and surface-grafted red-light-emitting cadmium-telluride quantum dots. After exposure to Cu2+ in 20 s, the red fluorescence was quenched obviously, while the blue fluorescence remained unchanged, and the sensor color changes continuously from red to blue under the ultraviolet lamp. The concentration (50-1200 nM) of copper ions could be measured by the fluorescence spectrum (excitation at 360 nm, dual-emission at 441 and 640 nm) with a detection limit of 7.7 nM. The fluorescence colors were converted to digital RGB values to calculate the concentration of copper ions by a smartphone with a detection limit of 9.6 nM. The method was applied to detecting copper ions spiked in real samples with recovery from 97.9 to 108.0% and RSD from 3.8 to 8.9%. Thus, this convenient and practical fluorescence color sensing system presents a new strategy for rapid, sensitive, and on-site determination of copper ions in environmental or biological samples.
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Affiliation(s)
- Xia Wu
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China
| | - Xufeng Meng
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China
| | - Baoxiu Hou
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China
| | - Zhong Sun
- Mengyin Inspection and Testing Center, Linyi, Shandong, 276000, People's Republic of China
| | - Yunyi Zhang
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China
| | - Ming Li
- College of Science, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China.
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16
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Wang L, Sun J, Ye J, Wang L, Sun X. One-step extraction and simultaneous quantitative fluorescence immunochromatography strip for AFB 1 and Cd detection in grain. Food Chem 2021; 374:131684. [PMID: 34871850 DOI: 10.1016/j.foodchem.2021.131684] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/31/2021] [Accepted: 11/23/2021] [Indexed: 12/13/2022]
Abstract
AFB1 and heavy metal Cd are two common pollutants during grain storage. The rapid detection of grains before they enter the granary is particularly important. Hence, rapidly, accurately, and sensitively screening contaminated grains, simplifying the detection process, and reducing detection costs are necessary. In this study, linear ranges of time-resolved fluorescence microsphere - immunochromatographic test strip (TRFM-ICTS) detection were 0.01-30 ng/mL (AFB1) and 0.01-60 ng/mL (Cd), and the IC50 values were 0.536 ng/mL (AFB1) and 3.331 ng/mL (Cd). In the TRFM-ICTS sample addition experiment, the recovery rates were all between 90% and 110%. The coefficient of variation was less than 8% in the actual sample detection process of grain. We have established a one-step extraction method for AFB1 and Cd in grains to achieve simultaneous detection in one extraction. In addition, TRFM-ICTS could be stored for at least 12 months, providing technical support for the realization of commercial production.
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Affiliation(s)
- Liangzhe Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jiadi Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jin Ye
- Academy of National Food and Strategic Reserves Administration, No.11 Baiwanzhuang Str, Xicheng District, Beijing 100037, China
| | - Liping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiulan Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China.
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17
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Novel paper-based sensing platform using photoluminescent gold nanoclusters for easy, sensitive and selective naked-eye detection of Cu2+. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130990] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Sang F, Li M, Yin S, Shi H, Zhao Y, Zhang Z. Highly sensitive and selective detection and intracellular imaging of glutathione using MnO 2 nanosheets assisted enhanced fluorescence of gold nanoclusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 256:119743. [PMID: 33845335 DOI: 10.1016/j.saa.2021.119743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/10/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Glutathione (GSH) plays a critical role in biological defense system and is associated with numerous human pathologies. However, it still remains a challenge for fluorescent detection of GSH over cysteine (Cys) and homocysteine (Hcy) because of their similar structures. In this work, MnO2 nanosheets can efficiently quench the fluorescence of gold nanoclusters (Met-AuNCs) prepared by blending methionine and HAuCl4 owing to their superior absorption capability. However, GSH can reduce MnO2 nanosheets into Mn2+ which leads to the fluorescence recovery of Met-AuNCs. More intriguingly, GSH can dramatically and selectively enhance the fluorescence intensity of Met-AuNCs. Hence, a low background, ultrasensitive fluorescent detection of GSH was obtained with a detection limit of 68 nM. Moreover, the assay has been successfully used for GSH detection in human serum samples and cellular imaging with high selectivity over Cys and Hcy.
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Affiliation(s)
- Fuming Sang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China.
| | - Menglin Li
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Suyao Yin
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Huahua Shi
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Yan Zhao
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Zhizhou Zhang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China
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19
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Wen G, Xiao Y, Chen S, Zhang X, Jiang Z. A nanosol SERS/RRS aptamer assay of trace cobalt(ii) by covalent organic framework BtPD-loaded nanogold catalytic amplification. NANOSCALE ADVANCES 2021; 3:3846-3859. [PMID: 36133010 PMCID: PMC9417635 DOI: 10.1039/d1na00208b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/04/2021] [Indexed: 06/14/2023]
Abstract
The determination of heavy metal ions has always been a hot topic in the field of environmental analysis. In this study, a new covalent organic framework-loaded gold nanoparticle (AuCOF) nanocatalytic amplification signal strategy was developed to determine trace Co2+ in water. The COF of BtPD was synthesized from 1,3,5-benzene tricarboxaldehyde and p-phenylenediamine, and a new kind of AuBtPD nanosol was prepared by reduction of HAuCl4 to AuNPs on the BtPD carrier. It has strong catalysis of the new indicator reaction of sodium formate reducing HAuCl4 to AuNP sol with strong resonance Rayleigh scattering (RRS) at 370 nm and surface enhanced resonance Raman scattering (SERS) activity at 1614 cm-1 in the presence of a Victoria blue 4R (VB4R) molecular probe. Combining the nanocatalytic reaction to amplify the dual-scattering signals and specific aptamer (Apt) of cobalt ions, a new, fast, stable, sensitive and specific dual mode method for detecting Co2+ was established; the RRS signal I 370nm and SERS signal I 1614cm-1 show a linear relationship with the concentration of 0.033-1 nmol L-1 Co2+ and with a limit of detection (LOD) of 0.02 nmol L-1. The two methods have been applied to the determination of Co2+ in industrial wastewater, tap water and river water, and the results are satisfactory.
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Affiliation(s)
- Guiqing Wen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Yang Xiao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Shuxin Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Xinghui Zhang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
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20
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Sonia, Komal, Kukreti S, Kaushik M. Gold nanoclusters: An ultrasmall platform for multifaceted applications. Talanta 2021; 234:122623. [PMID: 34364432 DOI: 10.1016/j.talanta.2021.122623] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 01/22/2023]
Abstract
Gold nanoclusters (Au NCs) with a core size below 2 nm form an exciting class of functional nano-materials with characteristic physical and chemical properties. The properties of Au NCs are more prominent and extremely different from their bulk counterparts. The synthesis of Au NCs is generally assisted by template or ligand, which impart excellent cluster stability and high quantum yield. The tunable and sensitive physicochemical properties of Au NCs open horizons for their advanced applications in various interdisciplinary fields. In this review, we briefly summarize the solution phase synthesis and origin of the characteristic properties of Au NCs. A vast review of recent research work introducing biosensors based on Au NCs has been presented along with their specifications and detection limits. This review also highlights recent progress in the use of Au NCs as bio-imaging probe, enzyme mimic, temperature sensing probe and catalysts. A speculation on present challenges and certain future prospects have also been provided to enlighten the path for advancement of multifaceted applications of Au NCs.
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Affiliation(s)
- Sonia
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India; Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Komal
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India; Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Shrikant Kukreti
- Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Mahima Kaushik
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India.
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21
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Zhao RX, Liu AY, Wen QL, Wu BC, Wang J, Hu YL, Pu ZF, Ling J, Cao Q. Glutathione stabilized green-emission gold nanoclusters for selective detection of cobalt ion. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 254:119628. [PMID: 33706115 DOI: 10.1016/j.saa.2021.119628] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
A glutathione stabilized Au nanoclusters (GSH-Au NCs) was synthesized here and used to selective detection of cobalt ion. The as-prepared GSH-Au NCs had strong green light emission around 500 nm, and the features of the NCs have been systematically characterized by UV-vis absorption, X-ray photoelectronic spectroscopic, Fourier transform infrared spectroscopy and transmission electron microscope characterization. The interactions between the GSH-Au NCs and metal ions was studied, and the results indicated that the fluorescence of the GSH-Au NCs could be quenched in the presence of Co2+ ion at pH of 6.0. The quenching ratio was linear with the concentration of Co2+ ions, and the calibration curve was I0/I = 0.1187cco + 0.6085 in the Co2+ concentration ranges from 2.0 to 50.0 μM with correlation coefficient (R2) of 0.9950 and the limit of detection (LOD, 3σ) of 0.124 μM. In addition, we collected environmental water samples to test the reliability of the method and demonstrated this method is simple, rapid, and selective.
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Affiliation(s)
- Rui-Xian Zhao
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - An-Yong Liu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Qiu-Lin Wen
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Bi-Chao Wu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Jun Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yi-Lin Hu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Zheng-Fen Pu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Jian Ling
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Qiue Cao
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
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22
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Fereja SL, Li P, Guo J, Fang Z, Zhang Z, Zhuang Z, Zhang X, Liu K, Chen W. Silver-enhanced fluorescence of bimetallic Au/Ag nanoclusters as ultrasensitive sensing probe for the detection of folic acid. Talanta 2021; 233:122469. [PMID: 34215104 DOI: 10.1016/j.talanta.2021.122469] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/16/2021] [Accepted: 04/23/2021] [Indexed: 12/18/2022]
Abstract
Folic acid (FA) is the natural form of water-soluble vitamins widely found in most plants and animal products and its deficiency leads to several human body abnormalities. The advancements of metal nanoclusters are highly increasing due to their molecule-like optical properties and attractive applications. Because of increasingly demand of noble metal nanoclusters as sensing templates, different synthesis methods have been developed for facile synthesis of noble metal nanoclusters. Herein, red-emitting fluorescent bovine serum albumin (BSA)-capped Au-Ag bimetallic NCs are facilely synthesized through green one-pot synthetic approach. The effect of silver on the fluorescence properties of Au NCs was investigated and it was found that introduction of silver can enhance the fluorescence intensity. The fluorescence intensity of the as-prepared Au-Ag nanoclusters gets quenched in the presence of folic acid in an aqueous medium and it was used as ultrasensitive sensing probe for FA detection. The developed Au-Ag NCs-based sensing probe shows linear response in the wide range of 0-100 μM and the detection limit is as low as 0.47 nM. Its applicability has also been confirmed successfully in real human serum, urine and FA tablet samples. Due to the high stability, sensitivity and selectivity, the developed bimetallic cluster sensing system is highly promising to be applied in the pharmaceutical and clinical laboratories.
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Affiliation(s)
- Shemsu Ligani Fereja
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China; Wolkite University, College of Natural and Computational Science, 07, Wolkite, Ethiopia
| | - Ping Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China
| | - Jinhan Guo
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China
| | - Zhongying Fang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China
| | - Ziwei Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China
| | - Zhihua Zhuang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China
| | - Xiaohui Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China
| | - Kaifan Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China; University of Science and Technology of China, Hefei, 230026, China.
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23
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Shao C, Xiong S, Cao X, Zhang C, Luo T, Liu G. Dithiothreitol-capped red emitting copper nanoclusters as highly effective fluorescent nanoprobe for cobalt (II) ions sensing. Microchem J 2021. [DOI: 10.1016/j.microc.2021.105922] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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"Turn-off" sensing probe based on fluorescent gold nanoclusters for the sensitive detection of hemin. Anal Bioanal Chem 2021; 413:1639-1649. [PMID: 33483839 DOI: 10.1007/s00216-020-03126-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 01/18/2023]
Abstract
Balanced level of hemin in the body is fundamentally important for normal human organ function. Therefore, environmentally benign, stable, and fluorescent metal nanoclusters (NCs) for selective and sensitive detection of hemin have been investigated and reported. Herein, highly orange red emissive gold NCs are successfully synthesized using glutathione as a reducing and stabilizing agent (GSH-Au NCs). The clusters are characterized using various techniques like Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), UV-vis spectroscopy, and fluorescence spectrometer. The fluorescence intensity of as-synthesized Au NCs strongly quenched upon addition of different concentrations of hemin. The decrease in fluorescence intensity of GSH-Au NCs has been applied for determination of hemin concentration in the linear range from 1 to 25 nM with a low limit of detection (LOD) of 0.43 nM. The method was also successfully applied for quantification of hemin in human serum sample. In view of this reality, the system can be considered as a possible strategy and excellent platform for determination of hemin in various areas of application.
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25
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Cao N, Xu J, Zhou H, Zhao Y, Xu J, Li J, Zhang S. A fluorescent sensor array based on silver nanoclusters for identifying heavy metal ions. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105406] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Shao C, Li C, Zhang C, Ni Z, Liu X, Wang Y. Novel synthesis of orange-red emitting copper nanoclusters stabilized by methionine as a fluorescent probe for norfloxacin sensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 236:118334. [PMID: 32305833 DOI: 10.1016/j.saa.2020.118334] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 03/19/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
In the present work, we report a novel chemical approach for the synthesis of orange-red emitting copper nanoclusters (Cu NCs) using L-methionine as stabilizing agent at room temperature for the first time. The synthetic route is facile, economical and viable. The methionine stabilized copper nanoclusters (Cu NCs/Met) were thoroughly characterized by TEM, FT-IR, XPS, UV-Vis, steady state and transient fluorescence spectroscopy. The results show the synthesized Cu NCs/Met with a fluorescence quantum yield of 4.37% possessed high stability and excellent optical features such as large Stokes shift and long fluorescence lifetime (8.3 μs). Significantly, the fluorescence intensity of Cu NCs/Met could be efficiently quenched by norfloxacin (NOR) pharmaceutical. A fast and cost-effective NOR sensor was proposed employing Cu NCs/Met as the fluorescent nanoprobe, and the quenching mechanisms were attributed to inner filter effect and agglomeration-induced quenching. The developed sensor exhibited a high sensitivity and selectivity towards NOR in a wide linear range from 0.05 to 250 μM with a detection limit as low as 17 nM. Moreover, the practicability of the developed NOR sensor for real sample assay was validated with satisfactory recoveries, indicating this sensing platform with great potential for label-free pharmaceutical detection in complex systems.
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Affiliation(s)
- Congying Shao
- College of Chemistry and Materials Science/Information College, Huaibei Normal University, Huaibei, Anhui 235000, China.
| | - Chunbo Li
- College of Chemistry and Materials Science/Information College, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Cheng Zhang
- College of Chemistry and Materials Science/Information College, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Zheng Ni
- College of Chemistry and Materials Science/Information College, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Xianhu Liu
- College of Chemistry and Materials Science/Information College, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Yongxiang Wang
- College of Chemistry and Materials Science/Information College, Huaibei Normal University, Huaibei, Anhui 235000, China
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27
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Du F, Cheng Z, Kremer M, Liu Y, Wang X, Shuang S, Dong C. A label-free multifunctional nanosensor based on N-doped carbon nanodots for vitamin B 12 and Co 2+ detection, and bioimaging in living cells and zebrafish. J Mater Chem B 2020; 8:5089-5095. [PMID: 32406457 DOI: 10.1039/d0tb00443j] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multifunctional N-doped carbon nanodots (N-CNDs) with a fluorescence (FL) quantum yield (QY) of 13.6% have been synthesized via a facile one-step hydrothermal process using Artemisia annua and 1,2-ethylenediamine as precursors. As-prepared N-CNDs showed excellent FL properties and were developed as a multifunctional sensing platform for vitamin B12 (VB12) and Co2+ determination, and bioimaging in living cells and zebrafish. The FL of N-CNDs is quenched efficiently in the presence of VB12 on the basis of the inner filter effect (IFE) or Co2+ by static quenching, respectively. EDTA as a masking agent enables Co2+ to be effectively eliminated and N-CNDs were used to selectively detect VB12 in the presence of both VB12 and Co2+. The present FL nanosensor can detect VB12 and Co2+ in the linear ranges of 0.5-35 μM and 2.5-25 μM with the corresponding detection limits of 47.4 nM and 230.5 nM, respectively. The study proved that the determination of Co2+ was based on the static quenching to form a complex between the amino group of N-CNDs and Co2+. Inspired by these outstanding properties, practical applications of this nanosensor for the detection of VB12 in actual samples (human serum, egg yolk, VB12 tablets and VB12 injection) and Co2+ in water samples were further verified with satisfactory results. The as-constructed N-CNDs have negligible toxicity and good biocompatibility, which facilitates utilization of N-CNDs in bioimaging of A549 cells and zebrafish, and sensing VB12 in living cells.
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Affiliation(s)
- Fangfang Du
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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Xie T, Zhong X, Liu Z, Xie C. Silica-anchored cadmium sulfide nanocrystals for the optical detection of copper(II). Mikrochim Acta 2020; 187:323. [PMID: 32394197 DOI: 10.1007/s00604-020-04295-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/23/2020] [Indexed: 12/17/2022]
Abstract
A fluorometric assay was developed for the determination of copper(II) ion based on its quenching effect on the green fluorescent probe of SiO2-anchored CdS nanocrystals (SiO2/CdS NCs). The fluorescent probe was prepared by a surface ion-directing strategy for homogeneous precipitation of CdS NCs onto the carboxyl-capped SiO2 core surfaces. In comparison to CdS NCs, the SiO2/CdS NCs has strong fluorescence emission and good photostability. Moreover, SiO2/CdS NCs show higher fluorescence selectivity for copper(II) ions than for other common metal ions because copper(II) ions have a strong fluorescence quenching effect on SiO2/CdS NCs. At excitation/emission wavelengths of 300/516 nm, the resulting fluorescent probe shows wide linear ranges from 0.01 to 2 μM with a detection limit of 6.3 nM for copper(II) ions. The method has been applied to the determination of trace copper(II) ions in tea infusions with satisfactory results. Graphical abstract.
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Affiliation(s)
- Tao Xie
- Institute of Physical Science and Information Technology, School of Chemical and Chemical Engineering, School of Life Science, Anhui University, Hefei, 230601, Anhui, China
| | - Xufeng Zhong
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
| | - Zhengjie Liu
- Institute of Physical Science and Information Technology, School of Chemical and Chemical Engineering, School of Life Science, Anhui University, Hefei, 230601, Anhui, China
| | - Chenggen Xie
- Institute of Physical Science and Information Technology, School of Chemical and Chemical Engineering, School of Life Science, Anhui University, Hefei, 230601, Anhui, China. .,Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China.
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Yu L, Zhang Q, Kang Q, Zhang B, Shen D, Zou G. Near-Infrared Electrochemiluminescence Immunoassay with Biocompatible Au Nanoclusters as Tags. Anal Chem 2020; 92:7581-7587. [DOI: 10.1021/acs.analchem.0c00125] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lei Yu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Weifang 262700, China
| | - Qiao Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China
| | - Qi Kang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China
| | - Bin Zhang
- College of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Dazhong Shen
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China
| | - Guizheng Zou
- College of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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CdSe quantum dots capped with a deep eutectic solvent as a fluorescent probe for copper(II) determination in various drinks. Mikrochim Acta 2020; 187:147. [PMID: 31970526 DOI: 10.1007/s00604-019-4085-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 12/13/2019] [Indexed: 10/25/2022]
Abstract
The present study shows that copper(II) ions can be determined with a new fluorescent probe that is based on the use of CdSe quantum dots capped with deep eutectic solvent (DES-CdSe QDs). The capped QDs were prepared in aqueous phase by a one-step procedure under ambient atmosphere using selenium dioxide as a stable precursor for selenium, and ascorbic acid as non-toxic reducing agent. The deep eutectic solvent is composed of choline chloride and thioglycolic acid and acts as stabilizing and functionalizing agent. The fluorescent probe undergoes an increase in the fluorescence intensity (with excitation/emission wavelengths at 380/560 nm) in the presence of Cu(II). Other ions display no significant effect on fluorescence. The effects of sample pH value, concentration of buffer, and volume of QDs solution were optimized by response surface methodology using a Box-Behnken statistical design. Under the optimal conditions, the response of the probe is linear in the 10-600 nM Cu(II) concentration range, with a 5.3 nM limit of detection. This is lower than the allowable maximum Cu(II) concentration in drinking water. The relative standard deviation of the method for five replicate measurements of Cu(II) at a 100 nM concentration level is 2.0%. The probe was successfully applied to the determination of Cu(II) in various drinks. Graphical abstractSchematic representation of a fluorometric method for the determination of Cu(II) at nanomolar concentration levels. The fluorescent system consists of deep eutectic solvent-capped cadmium selenide quantum dots (DES-CdSe QDs). Fluorescence is strongly enhanced by copper(II).
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Tang M, Zhu B, Qu Y, Jin Z, Bai S, Chai F, Chen L, Wang C, Qu F. Fluorescent silicon nanoparticles as dually emissive probes for copper(II) and for visualization of latent fingerprints. Mikrochim Acta 2019; 187:65. [DOI: 10.1007/s00604-019-4048-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/20/2019] [Indexed: 12/11/2022]
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Song C, Xu J, Chen Y, Zhang L, Lu Y, Qing Z. DNA-Templated Fluorescent Nanoclusters for Metal Ions Detection. Molecules 2019; 24:E4189. [PMID: 31752270 PMCID: PMC6891495 DOI: 10.3390/molecules24224189] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/09/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023] Open
Abstract
DNA-templated fluorescent nanoclusters (NCs) have attracted increasing research interest on account of their prominent features, such as DNA sequence-dependent fluorescence, easy functionalization, wide availability, water solubility, and excellent biocompatibility. Coupling DNA templates with complementary DNA, aptamers, G-quadruplex, and so on has generated a large number of sensors. Additionally, the preparation and applications of DNA-templated fluorescent NCs in these sensing have been widely studied. This review firstly focuses on the properties of DNA-templated fluorescent NCs, and the synthesis of DNA-templated fluorescent NCs with different metals is then discussed. In the third part, we mainly introduce the applications of DNA-templated fluorescent NCs for sensing metal ions. At last, we further discuss the future perspectives of DNA-templated fluorescent NCs in the synthesis and sensing metal ions in the environmental and biological fields.
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Affiliation(s)
- Chunxia Song
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China; (C.S.); (Y.C.); (L.Z.); (Y.L.)
| | - Jingyuan Xu
- Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, China;
| | - Ying Chen
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China; (C.S.); (Y.C.); (L.Z.); (Y.L.)
| | - Liangliang Zhang
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China; (C.S.); (Y.C.); (L.Z.); (Y.L.)
| | - Ying Lu
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China; (C.S.); (Y.C.); (L.Z.); (Y.L.)
| | - Zhihe Qing
- Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, China;
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Recent progress in copper nanocluster-based fluorescent probing: a review. Mikrochim Acta 2019; 186:670. [PMID: 31489488 DOI: 10.1007/s00604-019-3747-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 08/10/2019] [Indexed: 10/26/2022]
Abstract
Copper nanoclusters (CuNCs) are an attractive alternative to other metal nanoclusters. The synthesis of CuNCs is highly efficient and fast, with low-cost and without any complicated manipulation. Because of their tunable fluorescence and low toxicity, CuNCs have been highly exploited for biochemical sensing. This review (with 172 refs.) summarizes the progress that has been made in the field in the past years. Following an introduction into the fundamentals of CuNCs, the review first focuses on synthetic methods and the fluorescence properties of CuNCs (with subsections on the use of proteins, peptides, DNA and other molecules as templates). This is followed by a section on the use of CuNCs in fluorometric assays, with subsections on the detection of small molecules, proteins, nucleic acids, various other biomolecules including drugs, and of pH values. A further large chapter summarizes the work related to environmental analyses, specifically on determination of metal ions, anions and pollutants. Graphical abstract Schematic representation of the synthesis and potential applications of copper nanocluster (CuNCs) in biochemical analysis, emphatically reflected in some vital areas such as small molecule analysis, biomacromolecule monitoring, cell imaging, ions detection, toxic pollutant, etc.
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