1
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Lv C, Pu S, Wu L, Hou X. Self-calibrated HAp:Tb-EDTA paper-based probe with dual emission ratio fluorescence for binary visual and fluorescent detection of anthrax biomarker. Talanta 2024; 266:124979. [PMID: 37506518 DOI: 10.1016/j.talanta.2023.124979] [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: 03/09/2023] [Revised: 07/18/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023]
Abstract
Development of the portable device is significant for sensitive and rapid detection of an anthrax biomarker dipicolinic acid (DPA), existing in the B. anthracis. In this work, a novel HAp:Tb-EDTA paper-based ratiometric fluorescent sensor was obtained by a simple one-pot method for rapid and sensitive DPA detection. With the increased DPA concentration, the luminescence intensity of HAp (hydroxyapatite) remained constant, and thus applied as the stable reference signal, while the luminescence signal of Tb3+-EDTA was significantly enhanced due to the antenna effect. Therefore, the HAp:Tb-EDTA paper-based sensor was endowed with self-calibrated and ratiometric fluorescent detection performance for DPA. The proposed sensor showed excellent detection performance with a detection limit as low as 10.8 nM in the linear range of 0.5-30 μM. After combination with a smartphone, rapid visual and fluorescent detection of DPA was achieved. The proposed sensor was successfully applied to detect DPA from B. subtilis spore real samples, showing the application prospects of the paper-based sensors and opening a new horizon to develop novel paper-based point-of-care testing (POCT) devices.
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Affiliation(s)
- Caizhi Lv
- Analytical & Testing Center, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Shan Pu
- Analytical & Testing Center, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Lan Wu
- Analytical & Testing Center, Sichuan University, Chengdu, 610064, Sichuan, China.
| | - Xiandeng Hou
- Analytical & Testing Center, Sichuan University, Chengdu, 610064, Sichuan, China; College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
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2
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Han Y, Tao J, Khan A, Khan A, Ali N, Malik S, Yu C, Yang Y, Jesionowski T, Bilal M. Development of reusable chitosan-supported nickel sulfide microspheres for environmentally friendlier and efficient bio-sorptive decontamination of mercury toxicant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:47077-47089. [PMID: 36735126 DOI: 10.1007/s11356-022-24563-8] [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: 10/01/2022] [Accepted: 11/30/2022] [Indexed: 06/18/2023]
Abstract
Mercury emissions from the industrial sector have become an undeniable concern for researchers due to their toxic health effects. Efforts have been made to develop green, efficient, and reliable methods for removal of mercury from wastewater. Sorption process promises fruitful results for the decontamination of cations from wastewater. Among the number of used sorbents, metal sulfides have been emerged as an appropriate material for removing toxic metals that possess good affinity due to sulfur-based active sites for Hg through "Lewis's acid-based soft-soft interactions." Herein, nickel-sulfide nanoparticles were synthesized, followed by their incorporation in chitosan microspheres. FTIR analysis confirmed the synthesis of nickel sulfide-chitosan microspheres (NiS-CMs) displaying sharp bands for multiple functional groups. XRD analysis showed that the NiS-CMs possessed a crystallite size of 42.1 nm. SEM analysis indicated the size of NiS-CMs to be 950.71 μm based on SEM micrographs. The sorption of mercury was performed using the NiS-CMs, and the results were satisfactory, with a sorption capacity of 61 mg/g at the optimized conditions of pH 5.0, 80 ppm concentration, in 60 min at 25 °C. Isothermal models and kinetics studies revealed that the process followed pseudo-second-order kinetics and the Langmuir isothermal model best fitted to experimental data. It was concluded that the NiS-CMs have emerged as the best choice for removing toxic mercury ions with a positive impact on the environment.
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Affiliation(s)
- Yonghong Han
- Department of Pharmacy and Traditional Chinese Pharmacy, Jiangsu College of Nursing, Huaian, Jiangsu, 223005, People's Republic of China.
| | - Juan Tao
- Department of Pharmacy and Traditional Chinese Pharmacy, Jiangsu College of Nursing, Huaian, Jiangsu, 223005, People's Republic of China
| | - Adnan Khan
- Institute of Chemical Sciences, University of Peshawar, Peshawar-Khyber Pakhtunkhwa, 25120, Pakistan
| | - Afrasiab Khan
- Institute of Chemical Sciences, University of Peshawar, Peshawar-Khyber Pakhtunkhwa, 25120, Pakistan
| | - Nisar Ali
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Sumeet Malik
- Institute of Chemical Sciences, University of Peshawar, Peshawar-Khyber Pakhtunkhwa, 25120, Pakistan
| | - Chunhao Yu
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Department of Pharmaceutical Engineering, Faculty of Chemical Engineering, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Yong Yang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Department of Pharmaceutical Engineering, Faculty of Chemical Engineering, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60695, Poznan, Poland
| | - Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60695, Poznan, Poland
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Han J, Liu H, Qi J, Xiang J, Fu L, Sun X, Wang L, Wang X, Li B, Chen L. A Simple and Effective Visual Fluorescent Sensing Paper-Based Chip for the Ultrasensitive Detection of Mercury Ions in Environmental Water. SENSORS (BASEL, SWITZERLAND) 2023; 23:3094. [PMID: 36991805 PMCID: PMC10058424 DOI: 10.3390/s23063094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Traces of mercury ions in environmental water can harm humans and animals. Paper-based visual detection methods have been widely developed for the rapid detection of mercury ions; however, existing methods are not sensitive enough to be used in real environments. Here, we developed a novel, simple and effective visual fluorescent sensing paper-based chip for the ultrasensitive detection of mercury ions in environmental water. CdTe-quantum-dots-modified silica nanospheres were firmly absorbed by and anchored to the fiber interspaces on the paper's surface to effectively avoid the unevenness caused by liquid evaporation. The fluorescence of quantum dots emitted at 525 nm can be selectively and efficiently quenched with mercury ions, and the ultrasensitive visual fluorescence sensing results attained using this principle can be captured using a smartphone camera. This method has a detection limit of 2.83 µg/L and a fast response time (90 s). We successfully achieved the trace spiking detection of seawater (from three regions), lake water, river water and tap water with recoveries in the range of 96.8-105.4% using this method. This method is effective, low-cost, user-friendly and has good prospects for commercial application. Additionally, the work is expected to be utilized in the automated big data collection of large numbers of environmental samples.
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Affiliation(s)
- Jinglong Han
- School of Environment and Materials Engineering, Yantai University, Yantai 264005, China
| | - Huajun Liu
- School of Environment and Materials Engineering, Yantai University, Yantai 264005, China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Ji Qi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 264003, China
| | - Jiawen Xiang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Longwen Fu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 264003, China
| | - Xiyan Sun
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Liyan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Xiaoyan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Bowei Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 264003, China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 264003, China
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4
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Santhosh M, Park T. Semi-enclosed paper sensor for highly sensitive and selective detection of proline. Anal Chim Acta 2022; 1231:340399. [DOI: 10.1016/j.aca.2022.340399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/02/2022] [Accepted: 09/11/2022] [Indexed: 11/01/2022]
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5
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Meng A, Zhang Y, Wang X, Xu Q, Li Z, Sheng L, Yan L. Fluorescence probe based on boron-doped carbon quantum dots for high selectivity “on-off-on” mercury ion sensing and cell imaging. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Mabrouk M, Hammad SF, Mansour FR, Abdella AA. A Critical Review of Analytical Applications of Chitosan as a Sustainable Chemical with Functions Galore. Crit Rev Anal Chem 2022; 54:840-856. [PMID: 35903052 DOI: 10.1080/10408347.2022.2099220] [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] [Indexed: 10/16/2022]
Abstract
Biomass and biowastes stand as sustainable and cost-effective environmentally benign alternative feedstock. Chitosan is a biocompatible, bioactive, and biodegradable biopolymer derived from chitin to achieve eight aspects out of the 12 green chemistry principles. Chitosan got significant attention in several fields including chemical analysis, in addition to chemical functionally, which enabled its use as adsorbent and its structural crosslinking using various crosslinkers. The physicochemical, technological, and optical properties of chitosan have been extensively exploited in analysis. Mainly, deacetylation degree and molecular weight are controlling its properties and hence controlling its functions. This review presents a structure, properties, and functions relationships of chitosan. It also aims to provide an overview of the different functions that chitosan can serve in each analytical technique such as supporting matrix, catalyst…etc. The contribution of chitosan in improving the ecological performance is discussed in each technique.
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Affiliation(s)
- Mokhtar Mabrouk
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
- Pharmaceutical Services Center, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sherin F Hammad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Fotouh R Mansour
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
- Pharmaceutical Services Center, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Aya A Abdella
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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7
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Anžlovar A, Žagar E. Cellulose Structures as a Support or Template for Inorganic Nanostructures and Their Assemblies. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1837. [PMID: 35683693 PMCID: PMC9182054 DOI: 10.3390/nano12111837] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/17/2022]
Abstract
Cellulose is the most abundant natural polymer and deserves the special attention of the scientific community because it represents a sustainable source of carbon and plays an important role as a sustainable energent for replacing crude oil, coal, and natural gas in the future. Intense research and studies over the past few decades on cellulose structures have mainly focused on cellulose as a biomass for exploitation as an alternative energent or as a reinforcing material in polymer matrices. However, studies on cellulose structures have revealed more diverse potential applications by exploiting the functionalities of cellulose such as biomedical materials, biomimetic optical materials, bio-inspired mechanically adaptive materials, selective nanostructured membranes, and as a growth template for inorganic nanostructures. This article comprehensively reviews the potential of cellulose structures as a support, biotemplate, and growing vector in the formation of various complex hybrid hierarchical inorganic nanostructures with a wide scope of applications. We focus on the preparation of inorganic nanostructures by exploiting the unique properties and performances of cellulose structures. The advantages, physicochemical properties, and chemical modifications of the cellulose structures are comparatively discussed from the aspect of materials development and processing. Finally, the perspective and potential applications of cellulose-based bioinspired hierarchical functional nanomaterials in the future are outlined.
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Affiliation(s)
- Alojz Anžlovar
- National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia;
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8
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Al Yahyai I, Al-Lawati HAJ, Hassanzadeh J. Carbon dots-modified paper-based chemiluminescence device for rapid determination of mercury (II) in cosmetics. LUMINESCENCE 2022; 37:1087-1097. [PMID: 35441450 DOI: 10.1002/bio.4261] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/15/2022] [Accepted: 04/16/2022] [Indexed: 11/06/2022]
Abstract
Herein, a simple and portable paper-based analytical device (PAD) based on the inherent capability of carbon quantum dots (CQDs) to serve as a great emitter for the bis(2,4,6-trichlorophenyl) oxalate (TCPO)-hydrogen peroxide (H₂O₂) chemiluminescence (CL) reaction is introduced for the detection of harmful mercury ions (Hg2+ ). The energy is transferred from the unstable reaction intermediate (1,2-dioxetanedione) to CQDs, as acceptors, and an intensive orange-red CL emission is generated at about 600 nm, which is equal to the fluorescence emission wavelength of CQDs. The analytical applicability of this system was examined for the determination of Hg2+ . It was observed that Hg2+ could significantly quench the produced emission, which can be attributed to the formation of a stable and non-luminescent Hg2+ -CQDs complex. Accordingly, a simple and rapid PAD was established for monitoring Hg2+ , with a limit of detection (LOD) of 0.04 μg mL-1 . No interfering effect on the signal was found from other examined cations, indicating the acceptable specificity of the method. The designed assay was appropriately utilized to detect the Hg2+ in cosmetic samples with high efficiency. It is characterized by its low-cost, easy-to-use, facile but, accurate, and high selective for the detection of Hg2+ ions. Besides, the portability of this probe makes it suitable for on-site screening purposes.
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Affiliation(s)
- Iman Al Yahyai
- Department of Chemistry, College of Science, Sultan Qaboos University, Box 36, Al-Khod, Oman
| | - Haider A J Al-Lawati
- Department of Chemistry, College of Science, Sultan Qaboos University, Box 36, Al-Khod, Oman
| | - Javad Hassanzadeh
- Department of Chemistry, College of Science, Sultan Qaboos University, Box 36, Al-Khod, Oman
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9
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Khani H, Abbasi S, Tavakkoli Yaraki M, Tan YN. A naked-eye colorimetric assay for detection of Hg2+ ions in real water samples based on gold nanoparticles-catalyzed clock reaction. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118243] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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10
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Li H, Wang W, Wang Z, Lv Q, Bai H, Zhang Q. Analyte-enhanced photocatalytic activity of CdSe/ZnS quantum dots for paper-based colorimetric sensing of Hg2+ under visible light. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Rapid and ultrasensitive detection of mercury ion (II) by colorimetric and SERS method based on silver nanocrystals. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105790] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Fan P, He S, Cheng J, Hu C, Liu C, Yang S, Liu J. l-Cysteine modified silver nanoparticles-based colorimetric sensing for the sensitive determination of Hg 2+ in aqueous solutions. LUMINESCENCE 2020; 36:698-704. [PMID: 33270343 DOI: 10.1002/bio.3990] [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: 10/07/2020] [Revised: 11/22/2020] [Accepted: 11/29/2020] [Indexed: 12/28/2022]
Abstract
A simple and sensitive colorimetric sensing method was constructed for detection of Hg2+ in aqueous solutions and based on silver nanoparticles functionalized with l-cysteine (l-Cys-Ag NPs). In this method, adenosine triphosphate (ATP) induced aggregation of l-Cys-Ag NPs. Simultaneously, the solution colour changed from bright yellow to brown. In the presence of Hg2+ , Hg2+ chelated ATP to form a complex and reduce the degree of aggregation of l-Cys-Ag NPs and was accompanied by a colour change from brown to bright yellow. The changing values of absorbance at 390 nm were linearly correlated with concentration of Hg2+ over the 4.00 × 10-8 to 1.04 × 10-6 mol·L-1 range, with a detection limit of 8 nM. This method was used successfully for detection of Hg2+ in real water samples and performed good selectivity and sensitivity. The recovery range was 91.5-109.1%, indicating that the method has vast application potential for determination of Hg2+ in the environment.
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Affiliation(s)
- Pengfei Fan
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Shunzhen He
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Jinnan Center for Disease Control And Prevention, Tianjin, China
| | - Jianlin Cheng
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Congcong Hu
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Can Liu
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Shengyuan Yang
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
| | - Jinquan Liu
- College of Public Health, University of South China, Hengyang, People's Republic of China.,Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang, People's Republic of China
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13
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Kongasseri A, Sompalli NK, Modak VA, Mohanty A, Nagarajan S, Rao CB, Deivasigamani P, Mohan AM. Solid-state ion recognition strategy using 2D hexagonal mesophase silica monolithic platform: a smart two-in-one approach for rapid and selective sensing of Cd2+ and Hg2+ ions. Mikrochim Acta 2020; 187:403. [DOI: 10.1007/s00604-020-04363-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/31/2020] [Indexed: 11/29/2022]
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14
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Ramdzan NSM, Fen YW, Anas NAA, Omar NAS, Saleviter S. Development of Biopolymer and Conducting Polymer-Based Optical Sensors for Heavy Metal Ion Detection. Molecules 2020; 25:E2548. [PMID: 32486124 PMCID: PMC7321262 DOI: 10.3390/molecules25112548] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/09/2020] [Accepted: 04/15/2020] [Indexed: 12/26/2022] Open
Abstract
Great efforts have been devoted to the invention of environmental sensors as the amount of water pollution has increased in recent decades. Chitosan, cellulose and nanocrystalline cellulose are examples of biopolymers that have been intensively studied due to their potential applications, particularly as sensors. Furthermore, the rapid use of conducting polymer materials as a sensing layer in environmental monitoring has also been developed. Thus, the incorporation of biopolymer and conducting polymer materials with various methods has shown promising potential with sensitively and selectively toward heavy metal ions. In this feature paper, selected recent and updated investigations are reviewed on biopolymer and conducting polymer-based materials in sensors aimed at the detection of heavy metal ions by optical methods. This review intends to provide sufficient evidence of the potential of polymer-based materials as sensing layers, and future outlooks are considered in developing surface plasmon resonance as an excellent and valid sensor for heavy metal ion detection.
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Affiliation(s)
- Nur Syahira Md Ramdzan
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Yap Wing Fen
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia;
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia; (N.A.A.A.); (N.A.S.O.); (S.S.)
| | - Nur Ain Asyiqin Anas
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia; (N.A.A.A.); (N.A.S.O.); (S.S.)
| | - Nur Alia Sheh Omar
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia; (N.A.A.A.); (N.A.S.O.); (S.S.)
| | - Silvan Saleviter
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia; (N.A.A.A.); (N.A.S.O.); (S.S.)
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15
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A review on advances in methods for modification of paper supports for use in point-of-care testing. Mikrochim Acta 2019; 186:521. [DOI: 10.1007/s00604-019-3626-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/17/2019] [Indexed: 10/26/2022]
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16
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White-light emissive upconversion nanoparticles for visual and colorimetric determination of the pesticide thiram. Mikrochim Acta 2019; 186:106. [DOI: 10.1007/s00604-019-3231-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 01/04/2019] [Indexed: 10/27/2022]
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17
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Huang D, Liu X, Lai C, Qin L, Zhang C, Yi H, Zeng G, Li B, Deng R, Liu S, Zhang Y. Colorimetric determination of mercury(II) using gold nanoparticles and double ligand exchange. Mikrochim Acta 2018; 186:31. [DOI: 10.1007/s00604-018-3126-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 11/27/2018] [Indexed: 10/27/2022]
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18
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Da Q, Gu Y, Peng X, Zhang L, Du S. Colorimetric and visual detection of mercury(II) based on the suppression of the interaction of dithiothreitol with agar-stabilized silver-coated gold nanoparticles. Mikrochim Acta 2018; 185:357. [PMID: 29974244 DOI: 10.1007/s00604-018-2899-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 06/28/2018] [Indexed: 01/15/2023]
Abstract
A colorimetric and visual method is described for the determination of mercury(II) ion. A gel consisting of agar-stabilized silver-coated gold nanoparticles (Au@Ag NPs) was prepared. The reaction with dithiothreitol (DTT) via thiol-Ag chemistry results in an orange to purple color change of the gel. However, in the presence of Hg(II), the reaction of DTT with the silver shells is suppressed due to the strong thiophilicity of Hg(II). The color of the gel changes from purple to red to orange in the presence of increasing concentrations of Hg(II). The Au@Ag NPs therefore are a viable optical probe for Hg(II) which can be detected in concentration as low as 78 nM via dual-wavelength ratiometric absorbance (A390/A520), and at 1 μM levels with bare eyes. The use of agar as a support is mandatory to prevent the aggregation of the NPs and also improves selectivity. The method was applied to the analysis of spiked samples, and recoveries ranged between 96.3 and 104%. The assay is easy, inexpensive, and in our perception represents an attractive tool for on-site visual detection of Hg(II). Graphical abstract Schematic of the assay. With increasing concentrations of Hg(II), the oxidative etching of silver shells caused by dithiothreitol (DTT) is gradually inhibited, and the color of agar-stabilized Au@Ag NP gel varies from purple to red, and finally to orange. This can be used for visual detection of Hg(II).
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Affiliation(s)
- Qiang Da
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Yuanyuan Gu
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Xiafeng Peng
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Liying Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
| | - Shuhu Du
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
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Colorimetric determination of Hg(II) via the gold amalgam induced deaggregation of gold nanoparticles. Mikrochim Acta 2018; 185:351. [PMID: 29968011 DOI: 10.1007/s00604-018-2900-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 06/28/2018] [Indexed: 10/28/2022]
Abstract
A method is described for the colorimetric determination of mercury(II). In the absence of Hg(II), aminopropyltriethoxysilane (APTES) which is positively charged at pH 7 is electrostatically absorbed on the surface of gold nanoparticles (AuNPs). This neutralizes the negative charges of the AuNPs and leads to NP aggregation and a color change from red to blue-purple. However, in the presence of Hg(II), reduced Hg (formed through the reaction between Hg(II) and citrate on the AuNP surface) will replace the APTES on the AuNPs. Hence, the formation of aggregates is suppressed and the color of the solution does not change. The assay is performed by measuring the ratio of absorbances at 650 and 520 nm and can detect Hg(II) at nanomolar levels with a 10 nM limit of detection. The specific affinity between mercury and gold warrants the excellent selectivity for Hg(II) over other environmentally relevant metal ions. Graphical Abstract Schematic of the method for determination of Hg2+ based on the gold amalgam-induced deaggregation of gold nanoparticles in the presence of APTES with the LOD of 10.1 nM.
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