1
|
Liu Y, Su X, Liu H, Zhu G, Ge G, Wang Y, Zhou P, Zhou Q. Construction of eco-friendly dual carbon dots ratiometric fluorescence probe for highly selective and efficient sensing mercury ion. J Environ Sci (China) 2025; 148:1-12. [PMID: 39095148 DOI: 10.1016/j.jes.2024.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 08/04/2024]
Abstract
In present work, blue carbon dots (b-CDs) were derived from ammonium citrate and guanidine hydrochloride, and red carbon dots (r-CDs) were stemmed from malonate, ethylenediamine and meso‑tetra (4-carboxyphenyl) porphin based on facile hydrothermal method. Eco-friendly ratiometric fluorescence probe was innovatively constructed to effectively measure Hg2+ utilizing b-CDs and r-CDs. The developed probe displayed two typical emission peaks at 450 nm from b-CDs and 650 nm from r-CDs under the excitation at 360 nm. Mercury ion has strong quenching effect on the fluorescence intensity at 450 nm due to the electron transfer process and the fluorescence change at 450 nm was used as the response signal, whereas the fluorescence intensity at 650 nm kept unchangeable which resulted from the chemical inertness between Hg2+ and r-CDs, serving as the reference signal in the sensing system. Under optimal circumstances, this probe exhibited an excellent linearity between the fluorescence response values of ΔF450/F650 and Hg2+ concentrations over range of 0.01-10 µmol/L, and the limit of detection was down to 5.3 nmol/L. Furthermore, this probe was successfully employed for sensing Hg2+ in practical environmental water samples with satisfied recoveries of 98.5%-105.0%. The constructed ratiometric fluorescent probe provided a rapid, environmental-friendly, reliable, and efficient platform for measuring trace Hg2+ in environmental field.
Collapse
Affiliation(s)
- Yongli Liu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China.
| | - Xiaoyan Su
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Huanjia Liu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Guifen Zhu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Guobei Ge
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Yuxin Wang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Penghui Zhou
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Qingxiang Zhou
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.
| |
Collapse
|
2
|
Xi L, Chen Y, Zhang X, Liu M, Li J, Xiao D, Dramou P, He H. Less interference fluorescence analytical strategy: Bridging substance-triggered ratiometric sensor with convenient preparation and application. Talanta 2024; 275:126102. [PMID: 38692043 DOI: 10.1016/j.talanta.2024.126102] [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: 10/30/2023] [Revised: 04/03/2024] [Accepted: 04/11/2024] [Indexed: 05/03/2024]
Abstract
High interference and narrow application range are key of bottleneck of recent fluorescence analysis methods, which limit their wide application in the sensing field. Therefore, to overcome these disadvantages, a ratiometric fluorescence sensing system utilizing berberine (BER) and silver nanoclusters protected by dihydrolipoic acid (DHLA-AgNCs) was constructed for the first time in this work, to achieve determination of BER and daunorubicin (Dau). BER aqueous solution (non-planar conformation) has no fluorescence emission. When it was mixed with DHLA-AgNCs, the conformation of BER became planar, producing fluorescence emission at 515 nm besides the fluorescence emission peak of DHLA-AgNCs at 653 nm. With the increase of BER concentration added in system, the fluorescence intensity of BER (planar conformation) at 515 nm increased obviously and the fluorescence intensity of DHLA-AgNCs decreased slightly. Therefore, the dual emission fluorescence sensing system was constructed based on a fluorescence substance and non fluorescence substance, to achieve determination of BER. Meanwhile, based on the bridging effect of BER and fluorescence resonance energy transfer effect from Dau, the altering of two peaks intensity was utilized to achieve determination of Dau. Thus, this dual emission sensing system can not only be used for fluorescence analysis of BER and its analogues, but also based on the bridging effect of BER, allowing the determination of Dau and its analogues that could not be directly measured with silver nanoclusters, expanding the application range of traditional dual emission detection systems. Meanwhile, this system has strong anti-interference ability and low toxicity to the human body and less pollution to the sample and environment. This provides a new direction and universal research strategy for the construction of new fluorescence sensing systems in the future for the analysis of target substances that cannot be directly detected with conventional fluorescence analysis methods.
Collapse
Affiliation(s)
- Liping Xi
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China
| | - Yue Chen
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China
| | - Xiaoni Zhang
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China
| | - Meiru Liu
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China
| | - Jianhui Li
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China
| | - Deli Xiao
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China; Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing, 211198, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing, 211198, China.
| | - Pierre Dramou
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing, 211198, China.
| | - Hua He
- Department of Chemistry, China Pharmaceutical University, Nanjing, 211198, China; Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing, 211198, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing, 211198, China.
| |
Collapse
|
3
|
Xu J, Zhang Y, Zhu X, Ling G, Zhang P. Two-mode sensing strategies based on tunable cobalt metal organic framework active sites to detect Hg 2. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133424. [PMID: 38185088 DOI: 10.1016/j.jhazmat.2024.133424] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/20/2023] [Accepted: 01/01/2024] [Indexed: 01/09/2024]
Abstract
Heavy metal pollution poses a major threat to human health, and developing a user-deliverable heavy metal detection strategy remains a major challenge. In this work, two-mode Hg2+ sensing platforms based on the tunable cobalt metal-organic framework (Co-MOF) active site strategy are constructed, including a colorimetric, and an electrochemical assay using a personal glucose meter (PGM) as the terminal device. Specifically, thymine (T), a single, adaptable nucleotide, is chosen to replace typical T-rich DNA aptamers. The catalytic sites of Co-MOF are tuned competitively by the specific binding of T-Hg2+-T, and different signal output platforms are developed based on the different enzyme-like activities of Co-MOF. DFT calculations are utilized to analyze the interaction mechanism between T and Co-MOF with defect structure. Notably, the two-mode sensing platforms exhibit outstanding detection performance, with LOD values as low as 0.5 nM (colorimetric) and 3.69 nM (PGM), respectively, superior to recently reported nanozyme-based Hg2+ sensors. In real samples of tap water and lake water, this approach demonstrates an effective recovery rate and outstanding selectivity. Surprisingly, the method is potentially versatile and, by exchanging out T-Hg2+-T, can also detect Ag+. This simple, portable, and user-friendly Hg2+ detection approach shows plenty of promise for application in the future.
Collapse
Affiliation(s)
- Jiaqi Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Yuanke Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Xiaoguang Zhu
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Guixia Ling
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
| | - Peng Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
| |
Collapse
|
4
|
Yeh YH, Lin YS, Chiu TC, Hu CC. A Ratiometric Fluorescent Sensor for Penicillin G Based on Color-Tunable Gold-Silver Nanoclusters. ACS OMEGA 2024; 9:10621-10627. [PMID: 38463298 PMCID: PMC10918794 DOI: 10.1021/acsomega.3c09010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 03/12/2024]
Abstract
Excessive administration of penicillin G and improper disposal of its residues pose a serious risk to human health; therefore, the development of convenient methods for monitoring penicillin G levels in products is essential. Herein, novel gold-silver nanoclusters (AuAgNCs) were synthesized using chicken egg white and 6-aza-2-thiothymine as dual ligands with strong yellow fluorescence at 509 and 689 nm for the highly selective detection of penicillin G. The AuAgNCs were characterized using transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet-visible absorption spectrophotometry, and fluorescence spectrophotometry. Under optimum conditions, the fluorescence intensity decreased linearly with the concentration of penicillin G from 0.2 to 6 μM, with a low detection limit of 18 nM. Real sample analyses indicated that a sensor developed using the AuAgNCs could detect penicillin G in urine and water samples within 10 min, with the recoveries ranging from 99.7 to 104.0%. The particle size of the AuAgNCs increased from 1.80 to 9.06 nm in the presence of penicillin G. We believe the aggregation-induced quenching of the fluorescence of the AuAgNCs was the main mechanism for the detection of penicillin G. These results demonstrate the ability of our sensor for monitoring penicillin G levels in environmental and clinic samples.
Collapse
Affiliation(s)
- Yu-Hung Yeh
- Department of Applied Science, National Taitung University, No. 369, Sec. 2, University Road, Taitung City, Taitung County 95092, Taiwan (R.O.C.)
| | - Yu-Shen Lin
- Department of Applied Science, National Taitung University, No. 369, Sec. 2, University Road, Taitung City, Taitung County 95092, Taiwan (R.O.C.)
| | - Tai-Chia Chiu
- Department of Applied Science, National Taitung University, No. 369, Sec. 2, University Road, Taitung City, Taitung County 95092, Taiwan (R.O.C.)
| | - Cho-Chun Hu
- Department of Applied Science, National Taitung University, No. 369, Sec. 2, University Road, Taitung City, Taitung County 95092, Taiwan (R.O.C.)
| |
Collapse
|
5
|
Izadi S, Tashkhourian J, Alireza Hosseini Hafshejani S. Ecofriendly ratiometric colorimetric determination of mercury(II) ion in environmental water samples using gallic acid-capped gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123778. [PMID: 38134657 DOI: 10.1016/j.saa.2023.123778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 12/08/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Today, the monitoring and determination of heavy metal pollutants in the environment is an essential requirement for the environmental and research communities. Mercury ion is one of the most hazardous heavy metals, and scientists are trying to develop new methods for its detection. In this study, a new colorimetric sensor based on aggregation gallic acid-capped gold nanoparticles (GA-AuNPs) for the determination of mercury ions in environmental water samples was presented. The green synthesized GA-AuNPs exhibited a sharp surface plasmon resonance peak at 515 nm. The addition of mercury ions changed the surface properties of GA-AuNPs, resulting in the formation of a new peak near 670 nm due to the aggregation of GA-AuNPs, and an obvious color change from red to purple occurred. Thus, mercury ions were detected based on the change in the absorbance ratio (A670/A515). The developed sensor can determine the mercury ions in the concentration range of 78.0 nM to 8.3 µM with a detection limit of 5.5 nM. Based on the Environmental Protection Agency (EPA) and the World Health Organization (WHO) reports, the amount of Hg2+ ions in fresh water should be between 10.0 and 30.0 nM. The results indicate that the developed sensor can detect and determine trace amounts of Hg2+ ions in environmental water samples.
Collapse
Affiliation(s)
- Sepehr Izadi
- Department of Chemistry, Faculty of Science, Shiraz University, Shiraz, Iran
| | - Javad Tashkhourian
- Department of Chemistry, Faculty of Science, Shiraz University, Shiraz, Iran.
| | | |
Collapse
|
6
|
Sun R, Liu P, Dong Y, Yang Q, Ma Y. A dual-mode green emissive fluorescent probe for real-time detection of doxycycline in milk using a smartphone sensing platform. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6551-6560. [PMID: 37997770 DOI: 10.1039/d3ay01850d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Real-time quantitative analysis of tetracyclines is urgently needed to provide consumers with early warning of potential risks. Herein, we report a dual-mode green emissive fluorescent probe, which refers to the liquid mode and the solid mode of electrospun films doped with nitride-doped carbon nanosheets (NCNSs) for real-time detection of doxycycline (DOX). Highly fluorescent NCNSs were prepared by low-temperature solid treatment of urea and sodium citrate. With the addition of DOX, the green emission intensity of NCNSs at 475 nm can be obviously reduced. Method validation exhibited a good linear relationship in 0.05-150 μM between the fluorescence quenching of NCNSs and the concentration of DOX with a limit of detection (LOD) of 0.0127 μM. Furthermore, the immobilization of NCNSs in PAN carriers forming electrospun films stabilizes the green fluorescence of NCNSs. Additionally, electrospun films integrated into a smartphone were developed for real-time detection of DOX with LOD of 0.285 μM. Additionally, DOX in milk was monitored with satisfactory recoveries. Therefore, the integration of the smartphone and electrospun film provides a promising and convenient method for real-time identification of DOX in food analysis.
Collapse
Affiliation(s)
- Ruiqing Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Ping Liu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Yingjia Dong
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Qingli Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| | - Yongchao Ma
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
| |
Collapse
|
7
|
Xu M, Wang X, Liu X. Detection of Heavy Metal Ions by Ratiometric Photoelectric Sensor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11468-11480. [PMID: 36074997 DOI: 10.1021/acs.jafc.2c03916] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In recent years, heavy metal pollution has become increasingly serious. Heavy metals exist in an environment mainly in the form of ions (heavy metal ions, HMs). They can contaminate food, water, soil, and the atmosphere, leading to serious harm to plants and animals. With high bioavailability and nonbiodegradability, HMs can accumulate through biomagnification. Consequently, heavy metal pollution has become the cause of many fatal diseases threatening human health and ecological environment. Therefore, the accurate detection of HMs is vital and necessary. In this paper, the harm and limit standards of heavy metals were systematically summarized and the common analysis methods were overviewed and compared. Specifically, the latest research progress of ratiometric photoelectric sensor, including optical and electrical sensor, were mainly described. The research status and advantages and disadvantages of a photoelectric sensor were summarized. Furthermore, the future directions were proposed, which provided the reference for the further research and application of the ratiometric photoelectric sensor.
Collapse
Affiliation(s)
- Mingming Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Xiaoying Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Xiangping Liu
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing 210003, China
| |
Collapse
|
8
|
pH and solvent induced discoloration behavior of multicolor fluorescent carbon dots. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129261] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
9
|
Lopes RC, Rocha BG, Maçôas EM, Marques EF, Martinho JM. Combining metal nanoclusters and carbon nanomaterials: Opportunities and challenges in advanced nanohybrids. Adv Colloid Interface Sci 2022; 304:102667. [PMID: 35462268 DOI: 10.1016/j.cis.2022.102667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 12/11/2022]
Abstract
The development of functional materials with uniquely advanced properties lies at the core of nanoscience and nanotechnology. From the myriad possible combinations of organic and/or inorganic blocks, hybrids combining metal nanoclusters and carbon nanomaterials have emerged as highly attractive colloidal materials for imaging, sensing (optical and electrochemical) and catalysis, among other applications. While the metal nanoclusters provide extraordinary luminescent and electronic properties, the carbon nanomaterials (of zero, one or two dimensions) convey versatility, as well as unique interfacial, electronic, thermal, optical, and mechanical properties, which altogether can be put to use for the desired application. Herein, we present an overview of the field, for experts and non-experts, encompassing the basic properties of the building blocks, a systematic view of the chemical preparation routes and physicochemical properties of the hybrids, and a critical analysis of their ongoing and emerging applications. Challenges and opportunities, including directions towards green chemistry approaches, are also discussed.
Collapse
|
10
|
Innovative ratiometric optical strategy: Nonconjugated polymer dots based fluorescence-scattering dual signal output for sensing mercury ions. Food Chem 2021; 374:131771. [PMID: 34894467 DOI: 10.1016/j.foodchem.2021.131771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 11/07/2021] [Accepted: 12/01/2021] [Indexed: 12/23/2022]
Abstract
A new ratiometric platform was developed for sensing Hg2+, which combined fluorescence and scattering simultaneously. This ratiometric strategy reflected superiorities over conventional methods, since the two independent signals at irrelevant categories meet the requirements of sufficient wavelength separation, stimulation under one excitation, and collection on single instrument. Herein, nonconjugated polymer dots (N-PDs) were served as the recognition unit for Hg2+ with turn-off fluorescence and turn-on scattering. Additionally, two signal collection tactics were proposed to achieve fluorescence and scattering in a window: one was to record down-conversion fluorescence and second-order scattering spectra (FL@SOS), and the other was to gather the fluorescence excited by second-order diffraction light and first-order scattering (SODL-FL@FOS). This ratiometric sensor exhibited outstanding performance toward Hg2+ in the range of 0.1-50 μM with the detection limit of 27 nM. By contrast, the present proposal provided a more ingenious and scalable way to construct ratiometric sensor than traditional approach.
Collapse
|
11
|
Liu Y, Su L, Wang S, Guo Z, Hu Y. A ratiometric fluorescence sensor based on carbon quantum dots realized the quantitative and visual detection of Hg 2. LUMINESCENCE 2021; 37:220-229. [PMID: 34779111 DOI: 10.1002/bio.4163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 01/27/2023]
Abstract
In this paper, based on the fluorescence of carbon quantum dots (CQDs) quenched by mercury ions (Hg2+ ) and the nonresponse of Hg2+ to rhodamine B fluorescence, a dual emission ratio fluorescence sensor was constructed to realize the quantitative detection of Hg2+ . Under excitation at 365 nm, the fluorescence spectrum showed double emission peaks at 437 nm and 590 nm, corresponding to the fluorescence emissions of CQDs and rhodamine B, respectively. This method quantitatively detected Hg2+ based on the linear relationship between the ratio of the intensities of the two emission peaks F437 /F590 and the concentration of Hg2+ . The detection range was 10-70 nM, and the limit of detection (S/N = 3) was 3.3 nM. In addition, this method could also realize the qualitative and semiquantitative detection of Hg2+ according to the fluorescence colour change of the probe under ultraviolet light. After various evaluations, the method could be successfully applied to the quantitative and visual detection of Hg2+ in tap water, and demonstrated excellent selectivity, anti-interference performance, and repeatability of the method.
Collapse
Affiliation(s)
- Yalei Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Luyao Su
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Sui Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Zhiyong Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People's Republic of China
| | - Yufang Hu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People's Republic of China
| |
Collapse
|
12
|
Chen L, Cheng Z, Luo M, Wang T, Zhang L, Wei J, Wang Y, Li P. Fluorescent noble metal nanoclusters for contaminants analysis in food matrix. Crit Rev Food Sci Nutr 2021:1-19. [PMID: 34658279 DOI: 10.1080/10408398.2021.1990010] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recently, food safety issues caused by contaminants have aroused great public concern. The development of innovative and efficient sensing techniques for contaminants detection in food matrix is in urgent demand. As fluorescent nanomaterials, noble metal nanoclusters have attracted much attention because of their ease of synthesis, enhanced catalytic activity and biocompatibility, and most importantly, excellent photoluminescence property that provides promising analytical applications. This review comprehensively introduced the synthesis method of noble metal nanoclusters, and summarized the application of metal nanoclusters as fluorescent sensing materials in the detection of pollutants, including pesticides, heavy metal, mycotoxin, food additives, and other contaminants in food. The detection mechanism of pesticide residues mostly relies on the inhibition of natural enzymes. For heavy metals, the detection mechanism is mainly related to the interaction between metal ions and nanoclusters or ligands. It is evidenced that metal nanoclusters have great potential application in the field of food safety monitoring. Moreover, challenges and future trends of nanoclusters were discussed. We hope that this review can provide insights and directions for the application of nanoclusters in contaminants detection.
Collapse
Affiliation(s)
- Ling Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Zehua Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Mai Luo
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ting Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Lei Zhang
- Laboratory Animal Center, Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
| | - Jinchao Wei
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| |
Collapse
|
13
|
Liu J, Li Y, Liu L, Gao Y, Zhang Y, Yin Z, Pi F, Sun X. Current Progress on Antibiotic Sensing Based on Ratiometric Fluorescent Sensors. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:176-184. [PMID: 32747994 DOI: 10.1007/s00128-020-02946-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
Antibiotics, which can be used as veterinary drugs, are widely used in the prevention and treatment of infectious diseases for animals. However, overuse of antibiotics had caused serious problems on food contamination and human harm. For control such public issues, several of techniques have been in recent years. Ratiometric fluorescent (RF) technique, as one of the most promising strategies for quantitatively evaluated analytes, had been extensively developed for the readily measurements on the two different fluorescent emission intensities. In this review, the construction strategies for recent RF sensors will be mainly focused on. Meanwhile, the recent advances and new tendencies for detection of antibiotics based on RF technique shall be introduced. Finally, outlooks on the opportunities and challenges for quantitative fluorescence sensing on antibiotics will be summarized.
Collapse
Affiliation(s)
- Jinghan Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Ying Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Lin Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Yueying Gao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Yuanyuan Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Ziye Yin
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Fuwei Pi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.
| | - Xiulan Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.
| |
Collapse
|
14
|
Tan A, Yang G, Wan X. Ultra-high quantum yield nitrogen-doped carbon quantum dots and their versatile application in fluorescence sensing, bioimaging and anti-counterfeiting. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 253:119583. [PMID: 33652271 DOI: 10.1016/j.saa.2021.119583] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/13/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
The exploration of carbon quantum dots (CQDs) with ultra-high quantum yield, simple synthesis path, and satisfying output to facilitate their wide applications in numerous fields are always the research focus. In this work, nitrogen-doped carbon quantum dots (N-CQDs) with strong blue fluorescence were synthesized with a simple one-step hydrothermal method using citric acid and o-phenylenediamine as raw materials, and the absolute quantum yield was as high as 92.1%. The detailed research results demonstrate that the N-CQDs have outstanding fluorescence stability, high selectivity, and anti-interference in Hg2+ detection. The obtained N-CQDs also possess excellent biocompatibility, which can also be successfully applied in cell imaging and intracellular Hg2+ detection. Most importantly, due to their high quantum yield and excellent dispersibility, the N-CQDs solution can be used as a quick-drying fluorescent ink for ink-jet printing. Therefore, the as-prepared N-CQDs have great potential in fluorescence sensing, biomedical diagnosis, data encryption, and anti-counterfeiting.
Collapse
Affiliation(s)
- Anzhong Tan
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Guanghui Yang
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Xuejuan Wan
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China.
| |
Collapse
|
15
|
Jia P, Yang K, Hou J, Cao Y, Wang X, Wang L. Ingenious dual-emitting Ru@UiO-66-NH 2 composite as ratiometric fluorescence sensor for detection of mercury in aqueous. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124469. [PMID: 33243635 DOI: 10.1016/j.jhazmat.2020.124469] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/01/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
The increasing deterioration of ecosystem derived from heavy metals residues brings about the environmental and food contamination, which presses the exploration of facile platform for monitoring heavy metals. Herein, a ratiometric fluorescence sensor was designed for Hg2+ detection based on the compound of UiO-66-NH2 and Ru(bpy)32+ (Ru@UiO-66-NH2) which was synthesized by situ encapsulation. The innovative composite displayed two emission peaks at 437 and 604 nm, and the addition of Hg2+ could only quench the blue fluorescence due to static quenching and photo-induced electron transfer mechanism, providing an internal standard to promote the precision. Under optimal conditions, the ratiometric Ru@UiO-66-NH2 probe revealed outstanding anti-interference capability and performed with a great limit of detection (LOD) of 0.053 μM for Hg2+, which was 2-fold lower than that of single-color UiO-66-NH2. By merit of Ru@UiO-66-NH2, test hydrogels were fabricated to provide a tactics for visual, rapid and on-site detection of Hg2+. Additionally, the dual-emitting sensing platform presented satisfactory recoveries and reliabilities in lake water, tap water, and drink water, demonstrating the application potential of this proposed ratiometric fluorescence sensor for monitoring Hg2+.
Collapse
Affiliation(s)
- Pei Jia
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Kairong Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Jinjie Hou
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Yuanyuan Cao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Xin Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Li Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
| |
Collapse
|
16
|
Wang P, Yan Y, Zhang Y, Gao T, Ji H, Guo S, Wang K, Xing J, Dong Y. An Improved Synthesis of Water-Soluble Dual Fluorescence Emission Carbon Dots from Holly Leaves for Accurate Detection of Mercury Ions in Living Cells. Int J Nanomedicine 2021; 16:2045-2058. [PMID: 33731993 PMCID: PMC7957229 DOI: 10.2147/ijn.s298152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/23/2021] [Indexed: 12/15/2022] Open
Abstract
Background Carbon dots (CDs) emitting near-infrared fluorescence were recently synthesized from green leaves. However, the Hg2+ detection of CDs was limited because of the insufficient water solubility, low fluorescence and poor stability. Methods Dual fluorescence emission water-soluble CD (Dual-CD) was prepared through a solvothermal method from holly leaves and low toxic PEI1.8k. PEG was further grafted onto the surface to improve the water solubility and stability. Results The Dual-CD solution can emit 487 nm and 676 nm fluorescence under single excitation and exhibit high quantum yield of 16.8%. The fluorescence at 678 nm decreased remarkably while the emission at 470 nm was slightly affected by the addition of Hg2+. The ratiometric Hg2+ detection had a wide linear range of 0–100 μM and low detection limit of 14.0 nM. In A549 cells, there was a good linear relation between F487/F676 and the concentration of Hg2+ in the range of 0–60 μM; the detection limit was 477 nM. Furthermore, Dual-CD showed visual fluorescence change under Hg2+. Conclusion Dual-CD has ratiometric responsiveness to Hg2+ and can be applied for quantitative Hg2+ detection in living cells.
Collapse
Affiliation(s)
- Pengchong Wang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China.,School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Yan Yan
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China.,School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Ying Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Tingting Gao
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Hongrui Ji
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Shiyan Guo
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Ke Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Jianfeng Xing
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Yalin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| |
Collapse
|
17
|
Wang Z, Zhang L, Hao Y, Dong W, Liu Y, Song S, Shuang S, Dong C, Gong X. Ratiometric fluorescent sensors for sequential on-off-on determination of riboflavin, Ag + and l-cysteine based on NPCl-doped carbon quantum dots. Anal Chim Acta 2021; 1144:1-13. [PMID: 33453785 DOI: 10.1016/j.aca.2020.11.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/25/2020] [Accepted: 11/30/2020] [Indexed: 01/25/2023]
Abstract
The fluorescent sensor, especially ratiometric fluorescent sensor, is one of the most important applications for CQDs, which is becoming a research hotspot. Herein, carbon quantum dots co-doped with nitrogen, phosphorus and chlorine (NPCl-CQDs) were synthesized by acid-base neutralization reaction exothermic carbonization method. The as-fabricated NPCl-CQDs could emit blue fluorescence and possess excellent fluorescence properties. Based on the FRET, multifunctional and ratiometric fluorescent sensors for "on-off-on" sequential determination of riboflavin, Ag+, and Cys with good selectivity and high sensitivity were established. The linear range of riboflavin, Ag+, and Cys are 0.50-10.18 μM and 15.89-27.76 μM, 0.66-1.46 mM and 1.50-4.20 mM, and 0.01-0.15 μM and 0.15-0.36 μM with the limit of detection of 3.50 nM, 26.38 μM, and 0.96 nM, respectively. Furthermore, the sensors were successfully used to determine riboflavin, Ag+, and Cys in tablets, river water, and human urine with the recoveries of 95.2-104.0%, 95.6-102.0%, and 94.8-106.4%, respectively. More importantly, the as-constructed "on-off-on" NPCl-CQDs-based ratiometric fluorescent sensors were applied for detecting riboflavin, Ag+, and Cys in HeLa cells with satisfying results. The finding of this study shows the feasibility and effectiveness of the NPCl-CQDs as the available ratiometric fluorescent sensors for the determination of riboflavin, Ag+, and Cys in real samples and living cells.
Collapse
Affiliation(s)
- Zihan Wang
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Li Zhang
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Yumin Hao
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Wenjuan Dong
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Yang Liu
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Shengmei Song
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Shaomin Shuang
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China
| | - Chuan Dong
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China.
| | - Xiaojuan Gong
- Institute of Environmental Science, And School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China.
| |
Collapse
|
18
|
Peng B, Fan M, Xu J, Guo Y, Ma Y, Zhou M, Bai J, Wang J, Fang Y. Dual-emission ratio fluorescent probes based on carbon dots and gold nanoclusters for visual and fluorescent detection of copper ions. Mikrochim Acta 2020; 187:660. [DOI: 10.1007/s00604-020-04641-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 11/09/2020] [Indexed: 11/29/2022]
|
19
|
Ali R, Alminderej FM, Saleh SM. A simple, quantitative method for spectroscopic detection of metformin using gold nanoclusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 241:118744. [PMID: 32717648 DOI: 10.1016/j.saa.2020.118744] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/03/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
We synthesized bovine serum albumin (BSA)-stabilized gold nanoclusters (BSA-GNCs) and confirmed their ultra-small size using HRTEM (High-resolution Transmission Electron Microscope) and DLS (Dynamic Light Scattering). The fluorescence intensity of BSA-GNCs is "turned off" in the presence of Cu(II) metal ions. The resulting Cu(II)-mediated BSA-GNCs were utilized to detect metformin, a drug used to control diabetes. Metformin binds to and displaces Cu(II) ions from the BSA on the surface of the nanoclusters, which turns on the fluorescence of the nanoclusters. The interactions between the protein-stabilized nanoclusters were investigated in the absence and presence of Cu(II) using circular dichroism (CD) and Fourier-transform infrared spectroscopy (FTIR). Cu(II)-quenched BSA-GNCs had an extremely high sensitivity to detect metformin, with a low limit of detection (LOD) of 0.068 μM and a dynamic range of limit of quantification (LOQ = 10/3 LOD) of 0.22 to 11 μM. The ability of this novel "turn-on" nanosensor to detect metformin in human serum and urine samples was confirmed: the percentage recovery in fluorescence for spiked analyte ranged from 96.00-98.50% and 92.60-96.62% in human serum and urine samples, respectively. Thus, BSA-GNCs provide a valid, sensitive, specific fluorometric methodology for the detection of metformin in biomedical applications.
Collapse
Affiliation(s)
- Reham Ali
- Chemistry Department, Science College, Suez University, 43518 Suez, Egypt; Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia.
| | - Fahad M Alminderej
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
| | - Sayed M Saleh
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia; Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, 43721 Suez, Egypt
| |
Collapse
|
20
|
Pajewska-Szmyt M, Buszewski B, Gadzała-Kopciuch R. Carbon dots as rapid assays for detection of mercury(II) ions based on turn-off mode and breast milk. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 236:118320. [PMID: 32278279 DOI: 10.1016/j.saa.2020.118320] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/27/2020] [Accepted: 03/29/2020] [Indexed: 06/11/2023]
Abstract
In this research, nitrogen co-doped carbon dots were synthesized by solid thermal method with citric acid used as the precursor of carbon, and melamine as nitrogen source. Such carbon dots show high quantum yield of 44%. Furthermore, the native fluorescence of CDs can be reduced by mercury(II), while other metals had no significant influence on fluorescence intensity. During the study, the optimal parameters were selected, such as pH or time for incubation with analyte. Under the optimal conditions, quenching effect caused by mercury ions was evaluated. It was observed that with increasing mercury concentration, the fluorescence of the carbon dots decreased proportionally. The response was characterized by linearity within the range from 2 to 14 μM. Moreover, the limit of detection was 0.44 μM. It was the first time that human milk was used as a real sample to test the applicability of carbon dots. The study results demonstrated good recovery in the 74-111% range (RSD < 6%) As a novel carbon material, CDs show promise for broader applications in analyzing complicated biological samples.
Collapse
Affiliation(s)
- Martyna Pajewska-Szmyt
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarin St., 87-100 Toruń, Poland; Interdisciplinary Centre for Modern Technologies, Nicolaus Copernicus University, 4 Wileńska St, PL-87-100 Toruń, Poland.
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarin St., 87-100 Toruń, Poland; Interdisciplinary Centre for Modern Technologies, Nicolaus Copernicus University, 4 Wileńska St, PL-87-100 Toruń, Poland
| | - Renata Gadzała-Kopciuch
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarin St., 87-100 Toruń, Poland; Interdisciplinary Centre for Modern Technologies, Nicolaus Copernicus University, 4 Wileńska St, PL-87-100 Toruń, Poland
| |
Collapse
|
21
|
He Y, Du E, Zhou X, Zhou J, He Y, Ye Y, Wang J, Tang B, Wang X. Wet-spinning of fluorescent fibers based on gold nanoclusters-loaded alginate for sensing of heavy metal ions and anti-counterfeiting. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 230:118031. [PMID: 31931357 DOI: 10.1016/j.saa.2020.118031] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/20/2019] [Accepted: 01/03/2020] [Indexed: 05/08/2023]
Abstract
Fluorescent and robust fibers based on gold nanoclusters-loaded alginate were successfully prepared by wet spinning of gold nanoclusters and alginate. The relationship between process conditions, mechanical properties, and fluorescent properties of fibers was investigated. The as-prepared fibers exhibited high mechanical strength (up to 7.09 cN/dtex) and remarkable red emission under ultraviolet excitation. The fibers could be used as a simple, low-cost, and high-selectivity fluorescent sensor for detecting Cu2+ and Hg2+ among various metal ions in aqueous solution, with a detection limit as low as 187.99 nM for Cu2+ and 82.14 nM for Hg2+, respectively. Furthermore, the novel fluorescent fibers were used as an anti-counterfeiting label through knitting into textile materials. The wet-spun functional fibers may be applied to the design of smart wearable sensors and flexible optical sensors.
Collapse
Affiliation(s)
- Ying He
- Hubei University, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Wuhan 430062, China
| | - Enhui Du
- Hubei University, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Wuhan 430062, China
| | - Xu Zhou
- Hubei University, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Wuhan 430062, China
| | - Ji Zhou
- Hubei University, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Wuhan 430062, China.
| | - Yu He
- Hubei University, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Wuhan 430062, China
| | - Yong Ye
- Hubei University, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Wuhan 430062, China.
| | - Jinfeng Wang
- Deakin University, Institute for Frontier Materials, Geelong, Victoria 3216, Australia; Wuhan Textile University, National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan 430073, China
| | - Bin Tang
- Deakin University, Institute for Frontier Materials, Geelong, Victoria 3216, Australia; Wuhan Textile University, National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan 430073, China.
| | - Xungai Wang
- Deakin University, Institute for Frontier Materials, Geelong, Victoria 3216, Australia; Wuhan Textile University, National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan 430073, China
| |
Collapse
|
22
|
Tamil Selvan R, Tamil Selvan G, Varadaraju C, Enoch IV, Mosae Selvakumar P. Design and synthesis of a tripodal receptor for the selective detection of Fe3+. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.matpr.2020.03.069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|