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Guo Y, Sun J, Liu M, Wu J, Zhao Z, Ma T, Fang Y. A Ratiometric Biosensor Containing Manganese Dioxide Nanosheets and Nitrogen-Doped Quantum Dots for 2,4-Dichlorophenoxyacetic Acid Monitoring. BIOSENSORS 2024; 14:63. [PMID: 38391983 PMCID: PMC10887317 DOI: 10.3390/bios14020063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/17/2024] [Accepted: 01/20/2024] [Indexed: 02/24/2024]
Abstract
Nanomaterials are desirable for sensing applications. Therefore, MnO2 nanosheets and nitrogen-doped carbon dots (NCDs) were used to construct a ratiometric biosensor for quantification of 2,4-dichlorophenoxyacetic acid. The MnO2 nanosheets drove the oxidation of colorless o-phenylenediamine to OPDox, which exhibits fluorescence emission peaks at 556 nm. The fluorescence of OPDox was efficiently quenched and the NCDs were recovered as the ascorbic acid produced by the hydrolyzed alkaline phosphatase (ALP) substrate increased. Owing to the selective inhibition of ALP activity by 2,4-D and the inner filter effect, the fluorescence intensity of the NCDs at 430 nm was suppressed, whereas that at 556 nm was maintained. The fluorescence intensity ratio was used for quantitative detection. The linear equation was F = 0.138 + 3.863·C 2,4-D (correlation coefficient R2 = 0.9904), whereas the limits of detection (LOD) and quantification (LOQ) were 0.013 and 0.040 μg/mL. The method was successfully employed for the determination of 2,4-D in different vegetables with recoveries of 79%~105%. The fluorescent color change in the 2,4-D sensing system can also be captured by a smartphone to achieve colorimetric detection by homemade portable test kit.
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Affiliation(s)
- Yang Guo
- The Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin 300050, China; (Y.G.); (J.S.); (M.L.); (J.W.); (Z.Z.); (T.M.)
- Ningxia Hui Autonomous Region Food Testing Research Institute, Yinchuan 750000, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jingran Sun
- The Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin 300050, China; (Y.G.); (J.S.); (M.L.); (J.W.); (Z.Z.); (T.M.)
| | - Mingzhu Liu
- The Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin 300050, China; (Y.G.); (J.S.); (M.L.); (J.W.); (Z.Z.); (T.M.)
| | - Jin Wu
- The Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin 300050, China; (Y.G.); (J.S.); (M.L.); (J.W.); (Z.Z.); (T.M.)
| | - Zunquan Zhao
- The Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin 300050, China; (Y.G.); (J.S.); (M.L.); (J.W.); (Z.Z.); (T.M.)
| | - Ting Ma
- The Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin 300050, China; (Y.G.); (J.S.); (M.L.); (J.W.); (Z.Z.); (T.M.)
| | - Yanjun Fang
- The Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin 300050, China; (Y.G.); (J.S.); (M.L.); (J.W.); (Z.Z.); (T.M.)
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Tawfik SM, Farag AA, Abd-Elaal AA. Fluorescence Naphthalene Cationic Schiff Base Reusable Paper as a Sensitive and Selective for Heavy Metals Cations Sensor: RSM, Optimization, and DFT Modelling. J Fluoresc 2023:10.1007/s10895-023-03426-6. [PMID: 37713015 DOI: 10.1007/s10895-023-03426-6] [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: 08/11/2023] [Accepted: 09/01/2023] [Indexed: 09/16/2023]
Abstract
Heavy metals are particularly damaging contaminants in the environment, and even trace concentrations represent a risk to human health due to their toxicity. To detect the heavy metals of Mn2+ and Co2+ ions, a novel selective reusable paper-based Fluorescence naked-eye sensor based on naphthalene cationic Schiff base (NCSB) was synthesized and confirmed using FT-IR, 1 H-NMR, and MS tools. Based on a blue to colorless color change in the aqueous solution, the NCSB sensor is utilized to Mn2+ and Co2+ cations selectively among other metal ions (Fe2+, Cu2+, Mg2+, Ni2+, Zn2+, Cd2+, Hg2+, Pb2+, Sn2+ and Cr3+). In the aqueous medium, the NCSB sensor displayed high sensitivity, with limits of detection (LOD) values of 0.014 µM (14.08 nM) and 0.041 µM (41.47 nM) for Mn2+ and Co2+ cations, respectively. The paper-based sensor naked-eye detected Mn2+ and Co2+ cations in water at concentrations as low as 0.65 µM (65 nM) and 0.086 µM (86 nM), respectively. It was discovered that 5 min of incubation time and a pH range of 7 to 11 were optimal for the complexation reaction between the Mn2+ and Co2+ ions and the NCSB sensor. Through a static quenching process, the interaction of the different metal ions with the Schiff base group in the NCSB molecule results in the development of a ground-state non-fluorescent complex. NCSB sensor was also successfully applied in analysis of Mn2+ and Co2+ in environmental water with good recoveries of 94.8-105.9%. The theoretical calculations based on density functional theory (DFT) studies are in support of experimental interpretations. The links between the input factors and the anticipated response were evaluated using the quadratic model of the response surface methodology (RSM) modeling.
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Affiliation(s)
- Salah M Tawfik
- Egyptian Petroleum Research Institute, Cairo, 11727, Egypt
| | - Ahmed A Farag
- Egyptian Petroleum Research Institute, Cairo, 11727, Egypt.
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Alagarasan JK, Shasikala S, Ganesan S, Arunachalam M, Manojkumar U, Palaninaicker S, Nguyen DD, Chang SW, Lee M, Lo HM. Silicon nanoparticles as a fluorometric probe for sensitive detection of cyanide ion and its application in C. elegans bio-imaging. ENVIRONMENTAL RESEARCH 2023; 224:115402. [PMID: 36764433 DOI: 10.1016/j.envres.2023.115402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 12/01/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
In recent years, silicon nanoparticles (Si NPs) have been explored as a promising alternative to traditional organic fluorophores in optical sensing and bioimaging applications owing to their exceptional optical properties and negligible toxicity. In this study, water-dispersible Si NPs were prepared from a 3-aminopropyl trimethoxysilane precursor using a facile one-pot process. The as-prepared Si NPs exhibited excitation-wavelength-dependent fluorescence properties and bright green fluorescence at 530 nm upon excitation at 420 nm. The fluorescence properties of Si NPs remained unperturbed under various physiological conditions, such as varying pH, ionic strength, and incubation time. A sensitive fluorometric turn-off sensor for cyanide ion (CN-) detection was devised based on the unique fluorescence properties of Si NPs. The Si NPs-based detection assay showed a good linear response toward CN- ranging between 0 and 33 μM, with a limit of detection as low as 0.90 nM. Caenorhabditis elegans is used as a model organism to evaluate the in vivo toxicity and molecular imaging capability of Si NPs.
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Affiliation(s)
| | - Siddharthy Shasikala
- Department of Electronics and Instrumentation, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Sivarasan Ganesan
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, 41349, Taiwan
| | - Manimekalan Arunachalam
- Department of Environmental Sciences, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Utaiyachandran Manojkumar
- Department of Environmental Science, School of Energy & Environmental Sciences, Periyar University, Salem, Tamil Nadu, 636011, India
| | - Senthilkumar Palaninaicker
- Department of Environmental Science, School of Energy & Environmental Sciences, Periyar University, Salem, Tamil Nadu, 636011, India
| | - Dinh Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, Suwon-si, 16227, Republic of Korea; Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, 300A Nguyentat Thanh, District 4, Ho Chi Minh City, 755414, Vietnam
| | - Soon Wong Chang
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, 300A Nguyentat Thanh, District 4, Ho Chi Minh City, 755414, Vietnam
| | - Moonyong Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, 712-749, South Korea.
| | - Huang-Mu Lo
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, 41349, Taiwan.
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Rievaj M, Culková E, Šandorová D, Durdiak J, Bellová R, Tomčík P. A Review of Analytical Techniques for the Determination and Separation of Silver Ions and Its Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1262. [PMID: 37049355 PMCID: PMC10097010 DOI: 10.3390/nano13071262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/30/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
Many articles have already been published dealing with silver ions and its nanoparticles, but mostly from the environmental and toxicological point of view. This article is a review focused on the various analytical techniques and detection platforms used in the separation and determination of mentioned above species, especially on the trace concentration level. Commonly used are optical methods because of their high sensitivity and easy automation. The separation methods are mainly used for the separation and preconcentration of silver particles. Their combination with other analytical techniques, mainly inductively coupled plasma mass spectrometry (ICP-MS) leads to very low detection limits of analysis. The electrochemical methods are also powerful and perspective mainly because of the fabrication of new sensors designed for silver determination. All methods may be combined with each other to achieve a synergistic improvement of analytical parameters with an impact on sensitivity, selectivity and reliability. The paper comprises a review of all three types of analytical methods on the determination of trace quantities of silver ions and its nanoparticles.
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Rajamanikandan R, Sasikumar K, Kosame S, Ju H. Optical Sensing of Toxic Cyanide Anions Using Noble Metal Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13020290. [PMID: 36678042 PMCID: PMC9863761 DOI: 10.3390/nano13020290] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 06/12/2023]
Abstract
Water toxicity, one of the major concerns for ecosystems and the health of humanity, is usually attributed to inorganic anions-induced contamination. Particularly, cyanide ions are considered one of the most harmful elements required to be monitored in water. The need for cyanide sensing and monitoring has tempted the development of sensing technologies without highly sophisticated instruments or highly skilled operations for the objective of in-situ monitoring. Recent decades have witnessed the growth of noble metal nanomaterials-based sensors for detecting cyanide ions quantitatively as nanoscience and nanotechnologies advance to allow nanoscale-inherent physicochemical properties to be exploited for sensing performance. Particularly, noble metal nanostructure e-based optical sensors have permitted cyanide ions of nanomolar levels, or even lower, to be detectable. This capability lends itself to analytical application in the quantitative detection of harmful elements in environmental water samples. This review covers the noble metal nanomaterials-based sensors for cyanide ions detection developed in a variety of approaches, such as those based on colorimetry, fluorescence, Rayleigh scattering (RS), and surface-enhanced Raman scattering (SERS). Additionally, major challenges associated with these nano-platforms are also addressed, while future perspectives are given with directions towards resolving these issues.
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Yao M, Sun F, Nie J, Yang QL, Wu W, Zhao F. Electrospinning in Food Safety Detection: Diverse Nanofibers Promote Sensing Applications. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2146135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Mingru Yao
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Qingdao Institute of Special Food, Qingdao Agricultural University, Qingdao, China
| | - Feifei Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Qingdao Institute of Special Food, Qingdao Agricultural University, Qingdao, China
| | - Jiyun Nie
- Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao, China
- National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao), Qingdao Agricultural University, Qingdao, China
| | - Qing-Li Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Wei Wu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Qingdao Institute of Special Food, Qingdao Agricultural University, Qingdao, China
- Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao, China
| | - Fangyuan Zhao
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Qingdao Institute of Special Food, Qingdao Agricultural University, Qingdao, China
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Dai R, Zhang Y, Huang K, Peng X. Recent advances in the visual detection of ions and molecules based on gold and silver nanoclusters. ANALYTICAL METHODS 2022; 14:2820-2832. [PMID: 35843220 DOI: 10.1039/d2ay00618a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Gold and silver nanoclusters (Au/AgNCs) exhibit excellent application potential in optical biosensors because of their low toxicity, excellent biocompatibility, and unique optical properties. Au/AgNCs-based visual analysis methods have emerged as powerful tools for detecting various targets with convenient readout. In this review, the applications of Au/AgNCs in the visual detection and bioimaging of metal ions, inorganic anions, small molecules, and biomacromolecules in various devices are summarized. Furthermore, this review also discusses the future perspectives of the field.
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Affiliation(s)
- Rui Dai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Yixin Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Ke Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China
| | - Xian Peng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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Khan IM, Niazi S, Yue L, Zhang Y, Pasha I, Iqbal Khan MK, Akhtar W, Mohsin A, Chughati MFJ, Wang Z. Research update of emergent gold nanoclusters: A reinforced approach towards evolution, synthesis mechanism and application. Talanta 2022; 241:123228. [DOI: 10.1016/j.talanta.2022.123228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/08/2023]
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Rahimi F, Anbia M. Nitrogen-rich silicon quantum dots: facile synthesis and application as a fluorescent "on-off-on" probe for sensitive detection of Hg 2+ and cyanide ions. LUMINESCENCE 2022; 37:598-609. [PMID: 35037385 DOI: 10.1002/bio.4195] [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: 11/19/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 11/07/2022]
Abstract
The sensitive and reliable detection of Hg2+ and CN- as harsh environmental contaminants are of great importance. In view of this, a novel "on-off-on" fluorescent probe based on nitrogen-rich silicon quantum dots (NR-SiQDs) has been designed for sensitive detecting Hg2+ and CN- ions in aqueous media. NR-SiQDs were synthesized by a facile, one-step, and environment friendly procedure in the presence of 3-aminopropyl trimethoxysilane (APTMS) and ascorbic acid (AA) as precursors, with L-asparagine as a nitrogen source for surface modification. The NR-SiQDs exhibited strong fluorescence emission at 450 nm with 42.34% quantum yield, satisfactory salt tolerance, and superior photo- and pH-stability. The fluorescence emission was effectively quenched by Hg2+ (turn off) due to the formation of a non-fluorescent stable NR-SiQDs/Hg2+ complex while after the addition of cyanide ions (CN- ), Hg2+ ions can be leached from the surface of the NR-SiQDs and the fluorescence emission intensity of the quenched NR-SiQDs fully recovered (turn on) due to the formation of highly stable [Hg (CN)4 ]2- species. After optimizing the response conditions, the obtained limits of detection were found to be 53 nM and 0.46 μM for Hg2+ and CN- , respectively. Finally, the NR-SiQDs based fluorescence probe was utilized to detect Hg2+ and CN- ions in water samples and satisfactory results were obtained, suggesting its potential application for environmental monitoring.
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Affiliation(s)
- Fatemeh Rahimi
- Research Laboratory of Nanoporous Materials, Faculty of Chemistry, Iran University of Science and Technology, Narmak, Tehran16846, Iran
| | - Mansoor Anbia
- Research Laboratory of Nanoporous Materials, Faculty of Chemistry, Iran University of Science and Technology, Narmak, Tehran16846, Iran
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Wu L, Song Y, Xing S, Li Y, Xu H, Yang Q, Li Y. Advances in electrospun nanofibrous membrane sensors for ion detection. RSC Adv 2022; 12:34866-34891. [DOI: 10.1039/d2ra04911b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 11/02/2022] [Indexed: 12/12/2022] Open
Abstract
Harmful metal ions and toxic anions produced in industrial processes cause serious damage to the environment and human health.
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Affiliation(s)
- Liangqiang Wu
- College of Chemistry, Jilin University, Changchun 130021, P. R China
| | - Yan Song
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, P. R. China
| | - Shuo Xing
- College of Chemistry, Jilin University, Changchun 130021, P. R China
| | - Yapeng Li
- College of Chemistry, Jilin University, Changchun 130021, P. R China
| | - Hai Xu
- College of Chemistry, Jilin University, Changchun 130021, P. R China
| | - Qingbiao Yang
- College of Chemistry, Jilin University, Changchun 130021, P. R China
| | - Yaoxian Li
- College of Chemistry, Jilin University, Changchun 130021, P. R China
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Yan F, Yi C, Sun J, Zang Y, Wang Y, Xu M, Xu J. Self-quenching-resistant solid-state carbon dots for mechanism and applications. Mikrochim Acta 2021; 188:412. [PMID: 34741664 DOI: 10.1007/s00604-021-05068-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/18/2021] [Indexed: 10/19/2022]
Abstract
Solid-state carbon dots (SCDs) have been widely investigated by scholars owing to their stability, environmental friendliness, and their good optical properties. The current studies on carbon dots (CDs) are mainly focused on the solutions of CDs, while the researches on SCDs are relatively few in comparison. Nowadays, the fabrication and design of high-performance SCDs have attracted much interest. However, due to resonance energy transfer and π-π interactions, CDs undergo aggregation-induced quenching (ACQ) phenomena. This poses an obstacle to the acquisition of SCDs and affects their luminescence performance. Publications of the past 5 years are reviewed on how to suppress the ACQ phenomenon and improve the fluorescence and phosphorescence emission of CDs (Ref. 87) and about the mechanism of achieving the luminescence of SCDs. Then, the applications of SCDs in the fields of luminescent devices, anti-counterfeiting, and detection are outlined. The concluding section analyzes the current challenges faced by SCDs and provides an outlook. Mechanism of photoluminescence from solid state carbon dots.
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Affiliation(s)
- Fanyong Yan
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China.
| | - Chunhui Yi
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China.,School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Jingru Sun
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Yueyan Zang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Yao Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Ming Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Jinxia Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
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Yan F, Xu M, Xu J, Zang Y, Sun J, Yi C, Wang Y. Advances in Integrating Carbon Dots With Membranes and Their Applications. ChemistrySelect 2021. [DOI: 10.1002/slct.202101957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Fanyong Yan
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Chemistry and Chemical Engineering Tiangong University Tianjin 300387 PR China
| | - Ming Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Chemistry and Chemical Engineering Tiangong University Tianjin 300387 PR China
| | - Jinxia Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Chemistry and Chemical Engineering Tiangong University Tianjin 300387 PR China
| | - Yueyan Zang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Chemistry and Chemical Engineering Tiangong University Tianjin 300387 PR China
| | - Jingru Sun
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Chemistry and Chemical Engineering Tiangong University Tianjin 300387 PR China
| | - Chunhui Yi
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Chemistry and Chemical Engineering Tiangong University Tianjin 300387 PR China
| | - Yao Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Chemistry and Chemical Engineering Tiangong University Tianjin 300387 PR China
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Parchegani F, Amani S, Zendehdel M. Eco-friendly chitosan Schiff base as an efficient sensor for trace anion detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119714. [PMID: 33774417 DOI: 10.1016/j.saa.2021.119714] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/18/2021] [Accepted: 03/13/2021] [Indexed: 06/12/2023]
Abstract
Herein, a chitosan Schiff base sample (CSAN) was strategically designed and prepared via a two-step process. In the first step, an azo derivative of 1- naphthylamine namely, [2-hydroxy-5-(naphthalene-1-yldiazenyl) benzaldehyde] (HNDB) was synthesized as an aldehyde moiety. Then the condensation reaction of HNDB with chitosan afforded CSAN as the target product. Structural analyses of synthesized material were accomplished through FT-IR, 1H NMR, UV-Vis, XRD, TGA, and SEM spectral methods. Meanwhile, the heterogeneous CSAN was able to detect the presence of hydrogen carbonate (HCO3-), acetate (AcO-), and cyanide (CN-) anions in semi-aqueous media (H2O/DMSO; 10:90%, v/v). Moreover, the selectivity of CSAN towards CN- anion was increased through variation in solvent mixture ratios. Thereupon, CSAN was explored as a promising sensor towards CN- anion in an aqueous media through considerable color variation from colorless to pale yellow as well as quantitative chemical analysis. Overall, reliable CSAN chemosensor with high sensitivity for mentioned anions has a pivotal role in practical applications owing to it's reversibility ability.
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Affiliation(s)
- Fatemeh Parchegani
- Chemistry Department, Faculty of Sciences, Arak University, Dr. Beheshti Ave., Arak 38156-88349, Iran
| | - Saeid Amani
- Chemistry Department, Faculty of Sciences, Arak University, Dr. Beheshti Ave., Arak 38156-88349, Iran
| | - Mojgan Zendehdel
- Chemistry Department, Faculty of Sciences, Arak University, Dr. Beheshti Ave., Arak 38156-88349, Iran.
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Chen H, Wang S, Fu H, Xie H, Lan W, Xu L, Zhang L, She Y. Dual-QDs ratios fluorescent probe for sensitive and selective detection of silver ions contamination in real sample. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 234:118248. [PMID: 32179466 DOI: 10.1016/j.saa.2020.118248] [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: 02/17/2020] [Revised: 03/07/2020] [Accepted: 03/08/2020] [Indexed: 06/10/2023]
Abstract
Silver ions, as a commonly used industrial heavy metal, tends to deposit in the body and induce many diseases. In this work, modified CdTe QDs with green and red emission were synthesized to assemble dual-QDs, which could be efficient and selective utilized for Ag+ determination through the electron transfer progress between surface functional group of dual-QDs and Ag+, and the aggregation of Ag+ on the surface of dual-QDs. Under the appropriate pH value and volume ratio, the interaction between the surface functional groups of assembled dual-QDs reduce the affinity of Hg2+ in this system. The fluorescent signal of dual-QDs simultaneously attenuation or enhancement in the same proportion remove the interference of Cu2+ and other metal ions. Therefore, this method can selectively detect Ag+ without any masking agents. The linear region of detection was from 0 to 800 nmol/L (R2 > 0.998), and low of detection (LOD) was 7.7 nmol/L, which could meet the corresponding standards of World Health Organization (WHO) and Environmental Protection Agency (EPA). This effective proposed dual-QDs ratios fluorescent probe has been applied to detect Ag+ in real environment water, tea and Citri Reticulatae Pericarpium (CRP) water.
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Affiliation(s)
- Hengye Chen
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Shuo Wang
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Haiyan Fu
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, PR China.
| | - Hongliang Xie
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Wei Lan
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Lu Xu
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, Guizhou, PR China
| | - Lei Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yuanbin She
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China.
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