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Zou J, Zou J, Li L, Chen H, Liu S, Gao Y, Huang X, Wang L, Lu L. Enhanced electrocatalytic activity in MOFs-derived 3D hollow NiCo-LDH nanocages decorated porous biochar for simultaneously ultra-sensitive electrochemical sensing of Cu 2+ and Hg 2. Talanta 2024; 279:126624. [PMID: 39089079 DOI: 10.1016/j.talanta.2024.126624] [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: 09/05/2023] [Revised: 05/18/2024] [Accepted: 07/26/2024] [Indexed: 08/03/2024]
Abstract
Layered double hydroxides (LDHs) have attracted significant attention due to their compositional and structural flexibility. However, it is challenging but meaningful to design and fabricate hierarchical mixed-dimensional LDHs with synergistic effects to increase the electrical conductivity of LDHs and promote the intrinsic activity. Herein, 3D hollow NiCo-LDH nanocages decorated porous biochar (3D NiCo-LDH/PBC) has been synthesized by using ZIF-67 as precursor, which was utilized for constructing electrochemical sensing platform to realize simultaneous determination of Cu2+ and Hg2+. The 3D NiCo-LDH/PBC possessed the characteristics of hollow material and three-dimensional porous material, revealing a larger surface area, more exposed active sites, and faster electron transfer, which is beneficial to enhancing its electrochemical performance. Consequently, the developed sensor displayed good performance for simultaneously detecting Cu2+ and Hg2+ with ultra-low limit of detection (LOD) of 0.03 μg L-1 and 0.03 μg L-1, respectively. The proposed sensor also demonstrated excellent stability, repeatability and reproducibility. Furthermore, the sensor can be successfully used for the electrochemical analysis of Cu2+ and Hg2+ in lake water sample with satisfactory recovery, which is of great feasibility for practical application.
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Affiliation(s)
- Jiamin Zou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Jin Zou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Li Li
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Hui Chen
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Shuwu Liu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China.
| | - Yansha Gao
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Xigen Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China.
| | - Linyu Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Limin Lu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, PR China.
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Leburu E, Qiao Y, Wang Y, Yang J, Liang S, Yu W, Yuan S, Duan H, Huang L, Hu J, Hou H. Flexible electronics for heavy metal ion detection in water: a comprehensive review. Biomed Microdevices 2024; 26:30. [PMID: 38913209 DOI: 10.1007/s10544-024-00710-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2024] [Indexed: 06/25/2024]
Abstract
Flexible electronics offer a versatile, rapid, cost-effective and portable solution to monitor water contamination, which poses serious threat to the environment and human health. This review paper presents a comprehensive exploration of the versatile platforms of flexible electronics in the context of heavy metal ion detection in water systems. The review overviews of the fundamental principles of heavy metal ion detection, surveys the state-of-the-art materials and fabrication techniques for flexible sensors, analyses key performance metrics and limitations, and discusses future opportunities and challenges. By highlighting recent advances in nanomaterials, polymers, wireless integration, and sustainability, this review aims to serve as an essential resource for researchers, engineers, and policy makers seeking to address the critical challenge of heavy metal contamination in water resources. The versatile promise of flexible electronics is thoroughly elucidated to inspire continued innovation in this emerging technology arena.
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Affiliation(s)
- Ely Leburu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Yuting Qiao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Yanshen Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Jiakuan Yang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
- State Key Laboratory of Coal Combustion, Huazhong University of Science of and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
| | - Sha Liang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Wenbo Yu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Shushan Yuan
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Huabo Duan
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Liang Huang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Jingping Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China.
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China.
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China.
- State Key Laboratory of Coal Combustion, Huazhong University of Science of and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China.
| | - Huijie Hou
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China.
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, 430074, P.R. China.
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China.
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Chheang L, Khachornsakkul K, Del-Rio-Ruiz R, Zeng W, Thongkon N, Thanasupsin SP, Sonkusale S. Simple distance-based thread analytical device integrated with ion imprinted polymer for Zn 2+ quantification in human urine samples. Analyst 2024; 149:3161-3168. [PMID: 38632945 DOI: 10.1039/d4an00076e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
This article presents the development of a distance-based thread analytical device (dTAD) integrated with an ion-imprinted polymer (IIP) for quantitative monitoring of zinc ions (Zn2+) in human urine samples. The IIP was easily chemically modified onto the thread channel using dithizone (DTZ) as a ligand to bind to Zn2+ with methacrylic acid (MAA) as a functional monomer and ethylene glycol dimethacrylate (EGDMA) as well as 2,2-azobisisobutyronitrile (AIBN) as cross-linking agents to enhance the selectivity for Zn2+ detection. The imprinted polymer was characterized using Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy and Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDS). Under optimization, the linear detection range was from 1.0 to 20.0 mg L-1 (R2 = 0.9992) with a limit of detection (LOD) of 1.0 mg L-1. Other potentially interfering metal ions and molecules did not interfere with this approach, leading to high selectivity. Furthermore, our technique exhibits a remarkable recovery ranging from 100.48% to 103.16%, with the highest relative standard deviation (% RSD) of 5.44% for monitoring Zn2+ in human control urine samples, indicating high accuracy and precision. Similarly, there is no significant statistical difference between the results obtained using our method and standards on zinc supplement sample labels. The proposed method offers several advantages in detecting trace Zn2+ for point-of-care (POC) medical diagnostics and environmental sample analysis, such as ease of use, instrument-free readout, and cost efficiency. Overall, our developed dTAD-based IIP method holds potential for simple, affordable, and rapid detection of Zn2+ levels and can be applied to other metal ions' analysis.
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Affiliation(s)
- Lita Chheang
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA 02155, USA.
- Nano Lab, Tufts University, Medford, MA 02155, USA
- Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
- Department of Chemistry, Faculty of Science, Royal University of Phnom Penh, Federation of Russia Blvd, Tuol Kork, Phnom Penh, Cambodia
| | - Kawin Khachornsakkul
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA 02155, USA.
- Nano Lab, Tufts University, Medford, MA 02155, USA
| | - Ruben Del-Rio-Ruiz
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA 02155, USA.
- Nano Lab, Tufts University, Medford, MA 02155, USA
| | - Wenxin Zeng
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA 02155, USA.
- Nano Lab, Tufts University, Medford, MA 02155, USA
| | - Nisakorn Thongkon
- Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
| | - Sudtida Pliankarom Thanasupsin
- Chemistry for Green Society and Healthy Living Research Unit, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
| | - Sameer Sonkusale
- Department of Electrical and Computer Engineering, Tufts University, Medford, MA 02155, USA.
- Nano Lab, Tufts University, Medford, MA 02155, USA
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Mishra S, Budania Y, Tyagi A, Pratap Singh S, Kumar P, Singh S. Copper Oxide Anchored Carbon Nanofibers: A Versatile Platform for Multiplex Detection of Antibiotics, Heavy Metals and Pesticides. Chem Asian J 2024; 19:e202400241. [PMID: 38441388 DOI: 10.1002/asia.202400241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Indexed: 05/18/2024]
Abstract
Electrochemical sensors offer promising prospects for real-time pollutant monitoring. In this study, copper oxide-dispersed graphitic carbon nanofibers (CuO-CNFs) grown via chemical vapour deposition were employed as a robust platform for detecting a variety of environmental pollutants. This array-based sensor adeptly identifies three different classes of analytes, i. e., antibiotics (chloramphenicol (CP) and tylosin tartrate (TT)), heavy metals (cadmium (Cd) and lead (Pb)), and pesticides (quinalphos (QP) and imidacloprid (IP)). Electron collection is facilitated by a glassy carbon electrode, while various physico-electrochemical methods delve into the properties of CuO-CNFs. The CuO-CNF-modified GCE array rapidly discerns (<15 sec) a broad linear range: 1-20 ppm for CP, 1-13.33 ppm for TT, 0.66-11.66 ppm for Cd, 20-33.33 ppm for Pb, 1.6-11.6 ppm for QP, and 5-25 ppm for IP, boasting quantification limits of 1.0, 1.0, 0.66, 20.0, 1.6, and 5.0 ppm for CP, TT, Cd, Pb, QP, and IP, respectively. Notably, this sensor achieves simultaneous identification of mixed analytes, including CP and TT, Cd and Pb, and QP and IP, within real tap water. Furthermore, the electrochemical sensor exhibits robustness; heightened sensitivity, selectivity, and stability; a swift response; and impressive reproducibility in detecting CP, TT, Cd, Pb, QP, and IP within aqueous samples. Consequently, this array-based electrochemical sensor has emerged as a rapid and simultaneous detection tool for diverse pollutant residues in surface and groundwater samples.
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Affiliation(s)
- Smriti Mishra
- Industrial waste utilization, nano- and biomaterial division, CSIR- Advanced Materials and Processes Research Institute (CSIR-AMPRI), Hoshangabad Road, Bhopal, Madhya Pradesh, 462026, India
| | - Yashmeen Budania
- Industrial waste utilization, nano- and biomaterial division, CSIR- Advanced Materials and Processes Research Institute (CSIR-AMPRI), Hoshangabad Road, Bhopal, Madhya Pradesh, 462026, India
| | - Ankit Tyagi
- Department of Chemical Engineering, Indian Institute of Technology, Jammu, Jagti, Nagrota, Jammu & Kashmir, 181221, India
| | - Sheelendra Pratap Singh
- Pesticide toxicology laboratory & regulatory toxicology group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India
- Analytical Chemistry Laboratory, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India
| | - Pradip Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Green engineered materials and additive manufacturing, Council of Scientific and Industrial Research- Advanced Materials and Processes Research Institute, Bhopal, 462026, India
| | - Shiv Singh
- Industrial waste utilization, nano- and biomaterial division, CSIR- Advanced Materials and Processes Research Institute (CSIR-AMPRI), Hoshangabad Road, Bhopal, Madhya Pradesh, 462026, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Zhu N, Wang K, Xiong D, Xiao J, Deng Y, Yang Z, Zhang Z. Efficient DNA walker guided by ordered cruciform-shaped DNA track for ultrasensitive and rapid electrochemical detection of lead ion. Anal Chim Acta 2024; 1302:342492. [PMID: 38580406 DOI: 10.1016/j.aca.2024.342492] [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: 02/09/2024] [Revised: 03/13/2024] [Accepted: 03/16/2024] [Indexed: 04/07/2024]
Abstract
The rational design of DNA tracks is an effective pathway to guide the autonomous movement and high-efficiency recognition in DNA walkers, showing outstanding advantages for the cascade signal amplification of electrochemical biosensors. However, the uncontrolled distance between two adjacent tracks on the electrode could increase the risk of derailment and interruption of the reaction. Hence, a novel four-way balanced cruciform-shaped DNA track (C-DNT) was designed as a structured pathway to improve the effectiveness and stability of the reaction in DNA walkers. In this work, two kinds of cruciform-shaped DNA were interconnected as a robust structure that could avoid the invalid movement of the designed DNA walker on the electrode. When hairpin H2 was introduced onto the electrode, the strand displacement reaction (SDR) effectively triggered movements of the DNA walker along the cruciform-shaped track while leaving ferrocene (Fc) on the electrode, leading to a significant enhancement of the electrochemical signal. This design enabled the walker to move in an excellent organized and controllable manner, thus enhancing the reaction speed and walking efficiency. Compared to other walkers moving on random tracks, the reaction time of the C-DNT-based DNA walker could be reduced to 20 min. Lead ion (Pb2+) was used as a model target to evaluate the analytical performance of this biosensor, which exhibited a low detection limit of 0.033 pM along with a wide detection ranging from 0.1 pM to 500 nM. This strategy presented a novel concept for designing a high-performance DNA walker-based sensing platform for the detection of contaminants.
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Affiliation(s)
- Nuanfei Zhu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Kaixuan Wang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Dinghui Xiong
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jiaxuan Xiao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yibin Deng
- Medical Laboratory Science, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China; Key Laboratory of Clinical Molecular Diagnosis and Research for High Incidence Diseases in Western Guangxi, Guangxi, 533000, China.
| | - Zhugen Yang
- School of Water, Energy, and Environment, Cranfield University, Milton Keynes, MK43 0AL, UK
| | - Zhen Zhang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China; Medical Laboratory Science, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China; Key Laboratory of Clinical Molecular Diagnosis and Research for High Incidence Diseases in Western Guangxi, Guangxi, 533000, China.
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6
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Jjagwe J, Olupot PW, Kulabako R, Carrara S. Electrochemical sensors modified with iron oxide nanoparticles/nanocomposites for voltammetric detection of Pb (II) in water: A review. Heliyon 2024; 10:e29743. [PMID: 38665564 PMCID: PMC11044046 DOI: 10.1016/j.heliyon.2024.e29743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
Permissible limits of Pb2+ in drinking water are being reduced from 10 μgL-1 to 5 μgL-1, which calls for rapid, and highly reliable detection techniques. Electrochemical sensors have garnered attention in detection of heavy metal ions in environmental samples due to their ease of operation, low cost, and rapid detection responses. Selectivity, sensitivity and detection capabilities of these sensors, can be enhanced by modifying their working electrodes (WEs) with iron oxide nanoparticles (IONPs) and/or their composites. Therefore, this review is an in-depth analysis of the deployment of IONPs/nanocomposites in modification of electrochemical sensors for detection of Pb2+ in drinking water over the past decade. From the analyzed studies (n = 23), the optimal solution pH, deposition potential, and deposition time ranged between 3 and 5.6, -0.7 to -1.4 V vs Ag/AgCl, and 100-400 s, respectively. Majority of the studies employed square wave anodic stripping voltammetry (n = 16), in 0.1 M acetate buffer solution (n = 19) for detection of Pb2+. Limits of detection obtained (2.5 x 10-9 - 4.5 μg/L) were below the permissible levels which indicated good sensitivities of the modified electrodes. Despite the great performance of these modified electrodes, the primary source of IONPs has always been commercial iron-based salts in addition to the use of so many materials as modifying agents of these IONPs. This may limit reproducibility and sustainability of the WEs due to lengthy and costly preparation protocols. Steel and/or iron industrial wastes can be alternatively employed in generation of IONPs for modification of electrochemical sensors. Additionally, biomass-based activated carbons enriched with surface functional groups are also used in modification of bare IONPs, and subsequently bare electrodes. However, these two areas still need to be fully explored.
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Affiliation(s)
- Joseph Jjagwe
- Department of Mechanical Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Peter Wilberforce Olupot
- Department of Mechanical Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Robinah Kulabako
- Department of Civil and Environmental Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Sandro Carrara
- Bio/CMOS Interfaces Laboratory, School of Engineering, Institute of Microengineering, École Polytechnique Fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
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Wen J, Deng H, He D, Yuan Y. Dual-functional DNAzyme powered CRISPR-Cas12a sensor for ultrasensitive and high-throughput detection of Pb 2+ in freshwater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 911:168708. [PMID: 37992834 DOI: 10.1016/j.scitotenv.2023.168708] [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: 10/20/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
Freshwater lead pollution has posed severe threat to the environment and human health, underscoring the urgent necessity for accurate and user-friendly detection methods. Herein, we introduce a novel Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR-Cas) sensor for highly sensitive Pb2+ detection. To accomplish this, we designed a dual-functional deoxyribozyme (df-DNAzyme) probe that functions as an activator for the CRISPR-Cas12a system while also recognizing Pb2+. The df-DNAzyme probe was subsequently combined with gold nanoparticles (AuNPs) to fabricate a DNAzyme/AuNP nanoprobe, facilitating the activation of CRISPR-Cas12a in a one-to-multiple manner. Upon exposure to Pb2+, the df-DNAzyme is cleaved, causing disintegration of the DNAzyme/AuNP nanoprobe from magnetic beads. The degraded DNAzyme/AuNP containing multiple double-stranded DNA activators efficiently triggers CRISPR-Cas12a activity, initiating cleavage of fluorescence-quenched reporter DNA and generating amplified signals accordingly. The amplified fluorescence signal is accurately quantified using a quantitative polymerase chain reaction (qPCR) instrument capable of measuring 96 or 384 samples simultaneously at the microliter scale. This technique demonstrates ultra-sensitive detection capability for Pb2+ at concentrations as low as 1 pg/L within a range from 1 pg/L to 10 μg/L, surpassing limits set by World Health Organization (WHO) and United States Environmental Protection Agency (US EPA) guidelines. This study offers an ultrasensitive and high-throughput method for the detection of Pb2+ in freshwater, thereby advancing a novel approach towards the development of precise and convenient techniques for detecting harmful contaminants.
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Affiliation(s)
- Junlin Wen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Hongjie Deng
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Daigui He
- Guangdong Mechanical & Electrical Polytechnic, Guangzhou 510550, China
| | - Yong Yuan
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
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8
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Dehghan F, Rashidi A, Parvizian F, Moghadassi A. Pore size engineering of cost-effective all-nanoporous multilayer membranes for propane/propylene separation. Sci Rep 2023; 13:21419. [PMID: 38049544 PMCID: PMC10695959 DOI: 10.1038/s41598-023-48841-8] [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: 09/09/2023] [Accepted: 11/30/2023] [Indexed: 12/06/2023] Open
Abstract
In this study, a new multi-layer hybrid nanocomposite membrane named MFI/GO/ZIF-8 has been synthesized. This membrane combines three nanoporous materials with different morphologies in one membrane without using polymer materials. This allows access to a previously accessible region of very high permeability and selectivity properties. In addition to introducing a new and efficient MFI/GO/ZIF-8 membrane in this work, controlling the pore size of the zeolite layer has been investigated to increase the selectivity and permeability of propylene. The membrane was made using a solvent-free hydrothermal method and a layer-by-layer deposition method. To control the pore size of the MFI layer, a two-step synthesis strategy has been implemented. In the first step, three key parameters, including crystallization time, NaOH concentration and aging time of initial suspension, are controlled. In the second step, the effect of three additional parameters including hydrothermal time, hydrothermal temperature and NH4F concentration has been investigated. The results show that the optimal pore size has decreased from 177.8 nm to 120.53 nm (i.e., 32.2%). The MFI/GO/ZIF-8 membrane with fine-tuned crystal size in the zeolite layer was subjected to detailed tests for propylene selectivity and permeability. The structural characteristics of the membrane were also performed using FT-IR, XRD, FESEM and EDS techniques. The results show that the synergistic interaction between the three layers in the nanocomposite membrane significantly improves the selectivity and permeability of propylene. The permeability and selectivity of propylene increased from 50 to 60 GPU and from 136 to 177, respectively, before and after precise crystal size control. MFI/GO/ZIF-8 membrane by controlling the pore size of the zeolite layer shows a significant increase of 23.1% in selectivity and 16.7% in propylene permeability compared to the initial state. Also, due to the precise synthesis method, the absence of solvent and the use of cheap support, the prepared membrane is considered an environmentally friendly and low-cost membrane. This study emphasizes the potential of increasing the selectivity and permeability of propylene in the MFI/GO/ZIF-8 hybrid membrane by controlling the crystal size of the zeolite layer.
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Affiliation(s)
- Fahime Dehghan
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran
| | - Alimorad Rashidi
- Carbon and Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, P.O. Box 14857-33111, Tehran, Iran.
| | - Fahime Parvizian
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran.
| | - Abdolreza Moghadassi
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran
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9
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Xhanari K, Finšgar M. Recent advances in the modification of electrodes for trace metal analysis: a review. Analyst 2023; 148:5805-5821. [PMID: 37697964 DOI: 10.1039/d3an01252b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
This review paper summarizes the research published in the last five years on using different compounds and/or materials as modifiers for electrodes employed in trace heavy metal analysis. The main groups of modifiers are identified, and their single or combined application on the surface of the electrodes is discussed. Nanomaterials, film-forming substances, and polymers are among the most used compounds employed mainly in the modification of glassy carbon, screen-printed, and carbon paste electrodes. Composites composed of several compounds and/or materials have also found growing interest in the development of modified electrodes. Environmentally friendly substances and natural products (mainly biopolymers and plant extracts) have continued to be included in the modification of electrodes for trace heavy metal analysis. The main analytical performance parameters of the modified electrodes as well as possible interferences affecting the determination of the target analytes, are discussed. Finally, a critical evaluation of the main findings from these studies and an outlook discussing possible improvements in this area of research are presented.
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Affiliation(s)
- Klodian Xhanari
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
- University of Tirana, Faculty of Natural Sciences, Boulevard "Zogu I", 1001 Tirana, Albania
| | - Matjaž Finšgar
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
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10
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Liu J, Zou J, Deng L, Peng G, Liu S, Rui P, Wang X, Wang L, Gao Y, Lu L. Electroactive poly(thionine) as imprinted polymer and reference probe simultaneously for ratiometric ion imprinted electrochemical Pb 2+sensor. NANOTECHNOLOGY 2023; 34:505709. [PMID: 37725965 DOI: 10.1088/1361-6528/acfb0d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 09/18/2023] [Indexed: 09/21/2023]
Abstract
In this work, an electrochemical sensor based on ion-imprinted polymer/Au nanoparticles/porous biochar (IIP/AuNPs/PBC) composite was proposed for the highly selective and sensitive detection of Pb2+. In this work, poly (thionine) (pTHI) served simultaneously as imprinted polymer and reference probe. It could not only realize the specific detection of Pb2+, but also provide an internal reference signal to eliminate the influence of human and environmental factors on the detection signal and further improve the stability of the sensor. In addition, the AuNPs/PBC composite with large specific surface area, excellent electron transport and electrocatalytic performance could effectively enhance the detection signal as a carrier material. At the same time, the AuNPs on the PBC surface would promote the formation of uniform and stable IIP through Au-S bonds. The synergistic effect between IIP, AuNPs/PBC and ratiometric signal mode gave the Pb2+sensor excellent performance, including a wide linear range (0.1-1000μg l-1), low detection limit (0.03μg l-1, S/N = 3), excellent selectivity and stability. All these results indicate that the proposed sensor could provide a meaningful reference for highly selective detection of heavy metal ions (HMIs).
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Affiliation(s)
- Jiawei Liu
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Jin Zou
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Linbo Deng
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Guanwei Peng
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Shuwu Liu
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Peixin Rui
- College National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Xiaoqiang Wang
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Linyu Wang
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Yansha Gao
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Limin Lu
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
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11
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Sharafinia S, Rashidi A, Babaei B, Orooji Y. Nanoporous carbons based on coordinate organic polymers as an efficient and eco-friendly nano-sorbent for adsorption of phenol from wastewater. Sci Rep 2023; 13:13127. [PMID: 37573350 PMCID: PMC10423284 DOI: 10.1038/s41598-023-40243-0] [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: 06/02/2023] [Accepted: 08/07/2023] [Indexed: 08/14/2023] Open
Abstract
The major part of water pollutants includes of organic such as phenolic pollutant, thus there are every hazardous to environment. Present work is a comparative onto surface chemistry and adsorptive characteristics of coordinate organic polymer (Cop-150) and nanoporous carbon (NPC) prepared using solvothermal method. New NPC was successfully synthesized to remove of phenol. FT-IR, XRD, XPS, SEM, TGA, and BET techniques have been used to characterization and confirm physicochemical variation during preparing Cop-150 and NPC. Box-Behnken response surface methodology (BBRSM) was used to optimize four important factors of the pH (2-10), contact time (1-40 min), temperature (25-60 °C), and initial concentration of phenol (5-50 mg L-1). To analyze the data obtained from the adsorption of phenol by synthesized adsorbents, four linear, 2FI, quadratic and cubic models were examined, which the quadratic model was recognized as the best model. To the NPC the equal adsorption capacity 500 mg g-1 is achieved at the initial concentration of phenol = 49.252 mg L-1, contact time = 15.738 min, temperature = 28.3 °C, and pH 7.042. On the other hand, the adsorption capacity for Cop-150 in pH 4.638, the contact time = 19.695 min, the temperature = 56.8 °C, and the initial concentration of phenol = 6.902 mg L-1 was equal to 50 mg g-1. The experimental data at different conditions were investigated by some famous kinetic and isotherm models, which among them, were corresponded to the pseudo-second-order kinetic model and the Langmuir isotherm. Moreover, based to result of thermodynamics to the both Cop-150 and NPC, the adsorption process is exothermic and spontaneous. According to results the Cop-150 and NPC could be used for up to four and five cycles without significantly reducing their performance, respectively.
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Affiliation(s)
- Soheila Sharafinia
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Alimorad Rashidi
- Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, Iran.
| | - Behnam Babaei
- Department of Chemistry, Faculty of Basic Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Yasin Orooji
- Material and Energy Research Center, Karaj, Alborz, Iran
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12
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Guo X, Zhang Y, Ge H, Zhang J, Yang P, Wu Z. Facile Fabrication of 2D MXene Loading Co-doped Prussian Blue Nanoparticles for Ultrasensitive Electrochemical Assay of Trace Lead Ions. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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13
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Zhang L, Li D, Li S, Li J, Ma X, Wang M. High-sensitivity copper(II) sensor based on a protein/ion-imprinted polymer cooperative recognition strategy. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Application of Molecularly Imprinted Electrochemical Biomimetic Sensors for Detecting Small Molecule Food Contaminants. Polymers (Basel) 2022; 15:polym15010187. [PMID: 36616536 PMCID: PMC9824611 DOI: 10.3390/polym15010187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
Environmental chemical contaminants in food seriously impact human health and food safety. Successful detection methods can effectively monitor the potential risk of emerging chemical contaminants. Among them, molecularly imprinted polymers (MIPs) based on electrochemical biomimetic sensors overcome many drawbacks of conventional detection methods and offer opportunities to detect contaminants with simple equipment in an efficient, sensitive, and low-cost manner. We searched eligible papers through the Web of Science (2000-2022) and PubMed databases. Then, we introduced the sensing mechanism of MIPs, outlined the sample preparation methods, and summarized the MIP characterization and performance. The classification of electrochemistry, as well as its advantages and disadvantages, are also discussed. Furthermore, the representative application of MIP-based electrochemical biomimetic sensors for detecting small molecular chemical contaminants, such as antibiotics, pesticides, toxins, food additives, illegal additions, organic pollutants, and heavy metal ions in food, is demonstrated. Finally, the conclusions and future perspectives are summarized and discussed.
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15
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A Novel Aptamer-Imprinted Polymer-Based Electrochemical Biosensor for the Detection of Lead in Aquatic Products. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010196. [PMID: 36615388 PMCID: PMC9822230 DOI: 10.3390/molecules28010196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
Lead contamination in aquatic products is one of the main hazard factors. The aptasensor is a promising detection method for lead ion (Pb(II)) because of its selectivity, but it is easily affected by pH. The combination of ion-imprinted polymers(IIP) with aptamers may improve their stability in different pH conditions. This paper developed a novel electrochemical biosensor for Pb(II) detection by using aptamer-imprinted polymer as a recognition element. The glassy carbon electrode was modified with gold nanoparticles and aptamers. After the aptamer was induced by Pb(II) to form a G-quadruplex conformation, a chitosan-graphene oxide was electrodeposited and cross-linked with glutaraldehyde to form an imprint layer, improving the stability of the biosensor. Under the optimal experimental conditions, the current signal change (∆I) showed a linear correlation of the content of Pb(II) in the range of 0.1-2.0 μg/mL with a detection limit of 0.0796 μg/mL (S/N = 3). The biosensor also exhibited high selectivity for the determination of Pb(II) in the presence of other interfering metal ion. At the same time, the stability of the imprinted layer made the sensor applicable to the detection environment with a pH of 6.4-8.0. Moreover, the sensor was successfully applied to the detection of Pb(II) in mantis shrimp.
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16
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Yu L, Sun L, Zhang Q, Zhou Y, Zhang J, Yang B, Xu B, Xu Q. Nanomaterials-Based Ion-Imprinted Electrochemical Sensors for Heavy Metal Ions Detection: A Review. BIOSENSORS 2022; 12:bios12121096. [PMID: 36551065 PMCID: PMC9775266 DOI: 10.3390/bios12121096] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 05/13/2023]
Abstract
Heavy metal ions (HMIs) pose a serious threat to the environment and human body because they are toxic and non-biodegradable and widely exist in environmental ecosystems. It is necessary to develop a rapid, sensitive and convenient method for HMIs detection to provide a strong guarantee for ecology and human health. Ion-imprinted electrochemical sensors (IIECSs) based on nanomaterials have been regarded as an excellent technology because of the good selectivity, the advantages of fast detection speed, low cost, and portability. Electrode surfaces modified with nanomaterials can obtain excellent nano-effects, such as size effect, macroscopic quantum tunneling effect and surface effect, which greatly improve its surface area and conductivity, so as to improve the detection sensitivity and reduce the detection limit of the sensor. Hence, the present review focused on the fundamentals and the synthetic strategies of ion-imprinted polymers (IIPs) and IIECSs for HMIs detection, as well as the applications of various nanomaterials as modifiers and sensitizers in the construction of HMIIECSs and the influence on the sensing performance of the fabricated sensors. Finally, the potential challenges and outlook on the future development of the HMIIECSs technology were also highlighted. By means of the points presented in this review, we hope to provide some help in further developing the preparation methods of high-performance HMIIECSs and expanding their potential applications.
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Affiliation(s)
- Liangyun Yu
- School of Light Industry, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing 100048, China
| | - Liangju Sun
- School of Light Industry, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing 100048, China
| | - Qi Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Yawen Zhou
- School of Light Industry, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing 100048, China
| | - Jingjing Zhang
- School of Light Industry, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing 100048, China
| | - Bairen Yang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing 100048, China
- Correspondence: (B.X.); (Q.X.); Tel.: +86-514-8797-5257 (Q.X.)
| | - Qin Xu
- College of Chemistry and Engineering, Yangzhou University, Yangzhou 225002, China
- Correspondence: (B.X.); (Q.X.); Tel.: +86-514-8797-5257 (Q.X.)
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17
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A Critical Review on the Use of Molecular Imprinting for Trace Heavy Metal and Micropollutant Detection. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10080296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Molecular recognition has been described as the “ultimate” form of sensing and plays a fundamental role in biological processes. There is a move towards biomimetic recognition elements to overcome inherent problems of natural receptors such as limited stability, high-cost, and variation in response. In recent years, several alternatives have emerged which have found their first commercial applications. In this review, we focus on molecularly imprinted polymers (MIPs) since they present an attractive alternative due to recent breakthroughs in polymer science and nanotechnology. For example, innovative solid-phase synthesis methods can produce MIPs with sometimes greater affinities than natural receptors. Although industry and environmental agencies require sensors for continuous monitoring, the regulatory barrier for employing MIP-based sensors is still low for environmental applications. Despite this, there are currently no sensors in this area, which is likely due to low profitability and the need for new legislation to promote the development of MIP-based sensors for pollutant and heavy metal monitoring. The increased demand for point-of-use devices and home testing kits is driving an exponential growth in biosensor production, leading to an expected market value of over GPB 25 billion by 2023. A key requirement of point-of-use devices is portability, since the test must be conducted at “the time and place” to pinpoint sources of contamination in food and/or water samples. Therefore, this review will focus on MIP-based sensors for monitoring pollutants and heavy metals by critically evaluating relevant literature sources from 1993 to 2022.
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18
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Jalali Sarvestani MR, Madrakian T, Afkhami A. Ultra-trace levels voltammetric determination of Pb 2+ in the presence of Bi 3+ at food samples by a Fe 3O 4@Schiff base Network 1 modified glassy carbon electrode. Talanta 2022; 250:123716. [PMID: 35792444 DOI: 10.1016/j.talanta.2022.123716] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 01/08/2023]
Abstract
In this research, a highly sensitive electrochemical sensor was developed for the square wave anodic stripping voltammetric determination of Pb2+ at ultra-trace levels. A Glassy carbon electrode was modified with an in-situ electroplated bismuth film and the nanocomposite of a recently synthesized melamine based covalent organic framework (schiff base network1 (SNW1)) and Fe3O4 nanoparticles (Fe3O4@SNW1). The obtained results exhibit clearly that combination of Fe3O4@SNW1 and in-situ electroplated bismuth film enhances the sensitivity of the modified electrode towards Pb2+ remarkably. A Plackett-Burman design was implemented for screening experimental factors to specify the significant variables influencing the sensitivity of the electroanalytical method. Afterward, the effective factors were optimized using Box-Behnken design (BBD). Under optimized conditions, the proposed electrode showed a linear response towards Pb2+ in the concentration range of 0.003-0.3 μmol L-1 with the detection limit of 0.95 nmol L-1. The selectivity of the fabricated electrode towards different ionic species were checked out and no serious interference was observed. At the end, the application of the designed sensor in the determination of Pb2+ at 10 different edible specimens were investigated and the obtained recovery values were in the range of (95.56-106.64%) indicating the successful performance of the designed sensor.
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Affiliation(s)
| | - Tayyebeh Madrakian
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 6517838695, Iran.
| | - Abbas Afkhami
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 6517838695, Iran
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19
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Surface-functionalized fluorescent carbon dots (CDs) for dual-mode detection of lead ions. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02307-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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He LQ, Wang ZM, Li YJ, Yang J, Liao LF, Xiao XL, Liu Y. A Novel Electrochemical Sensor Modified with a Computer-Simulative Magnetic Ion-Imprinted Membrane for Identification of Uranyl Ion. SENSORS 2022; 22:s22124410. [PMID: 35746190 PMCID: PMC9227270 DOI: 10.3390/s22124410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 02/05/2023]
Abstract
In this paper, a novel ion-imprinted electrochemical sensor modified with magnetic nanomaterial Fe3O4@SiO2 was established for the high sensitivity and selectivity determination of UO22+ in the environment. Density functional theory (DFT) was employed to investigate the interaction between templates and binding ligands to screen out suitable functional binding ligand for the reasonable design of the ion imprinted sensors. The MIIP/MCPE (magnetic ion imprinted membrane/magnetic carbon paste electrode) modified with Fe3O4@SiO2 exhibited a strong response current and high sensitivity toward uranyl ion comparison with the bare carbon paste electrodes. Meanwhile, the MCPE was fabricated simultaneously under the action of strong magnetic adsorption, and the ion imprinted membrane can be adsorbed stably on the electrode surface, handling the problem that the imprinted membrane was easy to fall off during the process of experimental determination and elution. Based on the uranyl ion imprinting network, differential pulse voltammetry (DPV) was adopted for the detection technology to realize the electrochemical reduction of uranyl ions, which improved the selectivity of the sensor. Thereafter, uranyl ions were detected in the linear concentration range of 1.0 × 10−9 mol L−1 to 2.0 × 10−7 mol L−1, with the detection and quantification limit of 1.08 × 10−9 and 3.23 × 10−10 mol L−1, respectively. In addition, the sensor was successfully demonstrated for the determination of uranyl ions in uranium tailings soil samples and water samples with a recovery of 95% to 104%.
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Affiliation(s)
- Li-Qiong He
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China;
| | - Zhi-Mei Wang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; (Z.-M.W.); (Y.-J.L.)
| | - Yu-Jie Li
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; (Z.-M.W.); (Y.-J.L.)
| | - Jing Yang
- Hengyang Market Supervision Inspection and Testing Center, Hengyang 421001, China;
| | - Li-Fu Liao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China;
| | - Xi-Lin Xiao
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China;
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; (Z.-M.W.); (Y.-J.L.)
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China;
- State Key Laboratory of Chemo & Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Correspondence: (X.-L.X.); (Y.L.)
| | - Yong Liu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; (Z.-M.W.); (Y.-J.L.)
- Correspondence: (X.-L.X.); (Y.L.)
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21
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Comparison of the modification of graphite electrodes with poly(4-aminobenzoic acid) and poly(4-hydroxyphenylacetic acid) for determination of Pb(II). CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02282-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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22
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Munzhelele E, Gitari M, Ayinde W, Mudzielwana R. Synthesis, characterization of Ce3+ doped poly (para-phenylenediamine) composite for fluoride, arsenite and pathogens removal in aqueous solutions. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Hashami ZS, Taheri A, Alikarami M. Synthesis of a magnetic SBA-15-NH 2@Dual-Template Imprinted Polymer for solid phase extraction and determination of Pb and Cd in vegetables; Box Behnken design. Anal Chim Acta 2022; 1204:339262. [PMID: 35397913 DOI: 10.1016/j.aca.2021.339262] [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: 08/27/2021] [Revised: 10/24/2021] [Accepted: 11/06/2021] [Indexed: 11/28/2022]
Abstract
In this study, a simple one-step method was applied for extraction and determination of lead and cadmium. The significant variables in extraction and pre-concentration were identified using analysis of variance and their behavior was modeled. Dual-template imprinted polymer was synthesized on modified Mesoporous silica structures coated with Fe3O4 magnetic nanoparticles. The optimum condition was 6.12 for pH, 40.62 mg for the polymer amount and 17.38 for the ultrasonic time. Concentration range, correlation coefficient, limit of detection and relative standard deviation for lead were reported to be 0.5-950, 0.9988, 0.35 μg L-1 and 3.5%, respectively. For cadmium the above mentioned figure of merits were 0.3-980, 0.9969, 0.15 μg L-1 and 2.4%, respectively. The adsorption capacities for lead and cadmium were reported to be 10.28 and 10.38, while their imprinting factors were 5.89 and 6.36, respectively.
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Affiliation(s)
| | - Alireza Taheri
- Department of Chemistry, Ilam Branch, Islamic Azad University, Ilam, Iran.
| | - Mohammad Alikarami
- Department of Chemistry, Ilam Branch, Islamic Azad University, Ilam, Iran
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24
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RasulKhan B, Ponnaiah SK, Balasubramanian J, Periakaruppan P. Novel Carbon Quantum Dotted Reduced Graphene Oxide Nanosheets for Nano-molar Range Cadmium Quantification. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00732-8] [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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25
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Kulkarni BB, Suvina V, Balakrishna RG, Nagaraju DH, Jagadish K. 1D GNR‐PPy Composite for Remarkably Sensitive Detection of Heavy Metal Ions in Environmental Water**. ChemElectroChem 2022. [DOI: 10.1002/celc.202101269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bhakti B. Kulkarni
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Kanakapura Bangalore 562112, Karnataka India
| | - V. Suvina
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Kanakapura Bangalore 562112, Karnataka India
| | - R. Geetha Balakrishna
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Kanakapura Bangalore 562112, Karnataka India
| | - D. H. Nagaraju
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Kanakapura Bangalore 562112, Karnataka India
| | - Kusuma Jagadish
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Kanakapura Bangalore 562112, Karnataka India
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Lateral flow analysis of Pb (II) in green tea integrated with ionic imprinted paper-based chip. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107235] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Qu H, Fan C, Chen M, Zhang X, Yan Q, Wang Y, Zhang S, Gong Z, Shi L, Li X, Liao Q, Xiang B, Zhou M, Guo C, Li G, Zeng Z, Wu X, Xiong W. Recent advances of fluorescent biosensors based on cyclic signal amplification technology in biomedical detection. J Nanobiotechnology 2021; 19:403. [PMID: 34863202 PMCID: PMC8645109 DOI: 10.1186/s12951-021-01149-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 11/17/2021] [Indexed: 12/18/2022] Open
Abstract
The cyclic signal amplification technology has been widely applied for the ultrasensitive detection of many important biomolecules, such as nucleic acids, proteins, enzymes, adenosine triphosphate (ATP), metal ions, exosome, etc. Due to their low content in the complex biological samples, traditional detection methods are insufficient to satisfy the requirements for monitoring those biomolecules. Therefore, effective and sensitive biosensors based on cyclic signal amplification technology are of great significance for the quick and simple diagnosis and treatment of diseases. Fluorescent biosensor based on cyclic signal amplification technology has become a research hotspot due to its simple operation, low cost, short time, high sensitivity and high specificity. This paper introduces several cyclic amplification methods, such as rolling circle amplification (RCA), strand displacement reactions (SDR) and enzyme-assisted amplification (EAA), and summarizes the research progress of using this technology in the detection of different biomolecules in recent years, in order to provide help for the research of more efficient and sensitive detection methods.
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Affiliation(s)
- Hongke Qu
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chunmei Fan
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Mingjian Chen
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Xiangyan Zhang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Qijia Yan
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China.,Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yumin Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China.,Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shanshan Zhang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhaojian Gong
- Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lei Shi
- Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiayu Li
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qianjin Liao
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Bo Xiang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Ming Zhou
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Can Guo
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Xu Wu
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China. .,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China.
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China. .,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China.
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Ding Y, Wei F, Dong C, Li J, Zhang C, Han X. UiO-66 based electrochemical sensor for simultaneous detection of Cd(II) and Pb(II). INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108785] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jakavula S, Biata NR, Dimpe KM, Pakade VE, Nomngongo PN. Multi-ion imprinted polymers (MIIPs) for simultaneous extraction and preconcentration of Sb(III), Te(IV), Pb(II) and Cd(II) ions from drinking water sources. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126175. [PMID: 34492950 DOI: 10.1016/j.jhazmat.2021.126175] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/24/2021] [Accepted: 05/18/2021] [Indexed: 06/13/2023]
Abstract
Simultaneous extraction and preconcentration of several potentially toxic metal ions have received great attention because of their toxicological effects on aquatic life and human beings. Multi-ion imprinted polymers (MIIP) have proved to be promising adsorbents with excellent specific recognition performance than single-ion imprinted polymer. Therefore, in this study, the MIIP strategy was employed for simultaneous extraction and enrichment of Sb(III), Cd(II), Pb(II) and Te(IV) ions from drinking water sources. MIIPs was used as a sorbent material in ultrasound-assisted dispersive solid phase extraction combined with inductively coupled plasma optical emission spectrometry (UA-DSPE/ICP-OES). The experimental parameters that affect the extraction efficiency and recovery of Sb(III), Cd(II), Pb(II) and Te(IV) were investigated using response surface methodology. Under optimum conditions, the enhancement factors, linear range, limit of detection (LOD) and limit of quantification (LOQ) were 37.7-51.1, 0.04-100 µg L-1, 0.011-0.28 µg L-1, 0.037-093 µg L-1, respectively. The intra-day (n = 10) and inter-day (n = 5) precision expressed as relative standard deviations (%RSDs,) were 3% and 5%, respectively. The proposed UA-DSPE/ICP-OES method was applied for preconcentration and determination of the trace metal ions in environmental samples. Furthermore, the accuracy of the method was evaluated using spiked recovery experiments and the percentage recoveries ranged from 95% to 99.3%.
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Affiliation(s)
- Silindokuhle Jakavula
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; Department of Science and Innovation (DSI)/National Research Foundation (NRF) South African Research Chair Initiative (SARChI): Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - N Raphael Biata
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; Department of Science and Innovation (DSI)/National Research Foundation (NRF) South African Research Chair Initiative (SARChI): Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa; DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa
| | - K Mogolodi Dimpe
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa
| | - Vusumzi E Pakade
- Department of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark, South Africa
| | - Philiswa N Nomngongo
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; Department of Science and Innovation (DSI)/National Research Foundation (NRF) South African Research Chair Initiative (SARChI): Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa; DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa.
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31
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Zhao L, Hu X, Zi F, Liu Y, Hu D, Li P, Cheng H. Preparation and adsorption properties of Ni(ii) ion-imprinted polymers based on synthesized novel functional monomer. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0055] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
In this study, a novel functional monomer N-(1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethyl)acrylamide (NDTEA) was designed and synthesized, and was used to prepare Ni(ii) ion-imprinted polymers (Ni(ii)-IIPs). Sixteen kinds of Ni(ii)-IIP (Ni(ii)-IIP1–16) and corresponding non-imprinted polymers (NIP1–16) were prepared by precipitation polymerization method. After optimized condition experiment, Ni(ii)-IIP5 possessed maximum adsorption capacity and better imprinting factor under optimal experimental conditions which indicated by equilibrium adsorption experiments. The morphology and structural characteristics of Ni(ii)-IIP5 were characterized by scanning electron microscopy (SEM) and Brunauer–Emmett–Teller (BET). The adsorption selectivity of Ni(ii)-IIP5 was analyzed by ICP-OES, and the results showed that Ni(ii)-IIP5 had favorable selectivity recognition ability for Ni(ii) when Cu(ii), Co(ii), and Cd(ii) are used as competitive ions. The kinetic experiment indicated that the performance of Ni(ii) adsorption on the surface of Ni(ii)-IIP5 obeyed the pseudo-first-order model, and adsorption equilibrium was attained after 15 min. Isothermal adsorption process fitted to Langmuir and Freundlich isothermal adsorption models, simultaneously. The results showed that Ni(ii)-IIP5 prepared by using a new functional monomer had better permeation selectivity and higher affinity for Ni(ii), which also verified the rationality of the functional monomer design. At the same time, it also provided a broad application prospect for removal of Ni(ii) in complex samples.
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Affiliation(s)
- Li Zhao
- Faculty of Science, Kunming University of Science and Technology , Kunming 650500 , China
| | - Xianzhi Hu
- Faculty of Science, Kunming University of Science and Technology , Kunming 650500 , China
| | - Futing Zi
- Faculty of Science, Kunming University of Science and Technology , Kunming 650500 , China
| | - Yingmei Liu
- Faculty of Science, Kunming University of Science and Technology , Kunming 650500 , China
| | - Deqiong Hu
- Faculty of Science, Kunming University of Science and Technology , Kunming 650500 , China
| | - Peng Li
- Faculty of Science, Kunming University of Science and Technology , Kunming 650500 , China
| | - Huiling Cheng
- Faculty of Science, Kunming University of Science and Technology , Kunming 650500 , China
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Adauto A, Wong A, Khan S, Picasso G, Pilar Taboada Sotomayor M. A Selective Electrochemical Sensor for the Detection of Cd(II) Based on a Carbon Paste Electrode Impregnated with a Novel Ion‐imprinted Hybrid Polymer. ELECTROANAL 2021. [DOI: 10.1002/elan.202100007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anais Adauto
- Laboratory of Physical Chemistry Research Faculty of Sciences National University of Engineering Av. Tupac Amaru 210, Rimac Lima Peru
| | - Ademar Wong
- Department of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP) 14801-970 Araraquara SP Brazil
- National Institute for Alternative Technologies of Detection Toxicological Evaluation & Removal of Micropollutants and Radioactives (INCT-DATREM) Araraquara SP Brazil
| | - Sabir Khan
- Laboratory of Physical Chemistry Research Faculty of Sciences National University of Engineering Av. Tupac Amaru 210, Rimac Lima Peru
- Department of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP) 14801-970 Araraquara SP Brazil
| | - Gino Picasso
- Laboratory of Physical Chemistry Research Faculty of Sciences National University of Engineering Av. Tupac Amaru 210, Rimac Lima Peru
| | - María Pilar Taboada Sotomayor
- Department of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP) 14801-970 Araraquara SP Brazil
- National Institute for Alternative Technologies of Detection Toxicological Evaluation & Removal of Micropollutants and Radioactives (INCT-DATREM) Araraquara SP Brazil
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Zarejousheghani M, Rahimi P, Borsdorf H, Zimmermann S, Joseph Y. Molecularly Imprinted Polymer-Based Sensors for Priority Pollutants. SENSORS (BASEL, SWITZERLAND) 2021; 21:2406. [PMID: 33807242 PMCID: PMC8037679 DOI: 10.3390/s21072406] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/27/2021] [Accepted: 03/29/2021] [Indexed: 01/05/2023]
Abstract
Globally, there is growing concern about the health risks of water and air pollution. The U.S. Environmental Protection Agency (EPA) has developed a list of priority pollutants containing 129 different chemical compounds. All of these chemicals are of significant interest due to their serious health and safety issues. Permanent exposure to some concentrations of these chemicals can cause severe and irrecoverable health effects, which can be easily prevented by their early identification. Molecularly imprinted polymers (MIPs) offer great potential for selective adsorption of chemicals from water and air samples. These selective artificial bio(mimetic) receptors are promising candidates for modification of sensors, especially disposable sensors, due to their low-cost, long-term stability, ease of engineering, simplicity of production and their applicability for a wide range of targets. Herein, innovative strategies used to develop MIP-based sensors for EPA priority pollutants will be reviewed.
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Affiliation(s)
- Mashaalah Zarejousheghani
- Institute of Electronic and Sensor Materials, Faculty of Materials Science and Materials Technology, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (P.R.); (Y.J.)
- Department Monitoring and Exploration Technologies, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany;
| | - Parvaneh Rahimi
- Institute of Electronic and Sensor Materials, Faculty of Materials Science and Materials Technology, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (P.R.); (Y.J.)
| | - Helko Borsdorf
- Department Monitoring and Exploration Technologies, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany;
| | - Stefan Zimmermann
- Department of Sensors and Measurement Technology, Institute of Electrical Engineering and Measurement Technology, Leibniz University Hannover, 30167 Hannover, Germany;
| | - Yvonne Joseph
- Institute of Electronic and Sensor Materials, Faculty of Materials Science and Materials Technology, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (P.R.); (Y.J.)
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Mukherjee S, Bhattacharyya S, Ghosh K, Pal S, Halder A, Naseri M, Mohammadniaei M, Sarkar S, Ghosh A, Sun Y, Bhattacharyya N. Sensory development for heavy metal detection: A review on translation from conventional analysis to field-portable sensor. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Tu J, Zhou Z, Liu Y, Li T, Lu S, Xiao L, Xiao P, Zhang G, Sun Z. Nanochannel-based sensor for the detection of lead ions in traditional Chinese medicine. RSC Adv 2021; 11:3751-3758. [PMID: 35424271 PMCID: PMC8694145 DOI: 10.1039/d0ra10157e] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 12/31/2020] [Indexed: 01/16/2023] Open
Abstract
Lead ions (Pb2+) are used in the quality control of traditional Chinese medicine (TCM) preparations because they are highly toxic to human health. At present, sophisticated analytical instrumentation and complicated procedures for sample analysis are needed for the determination of Pb2+. Herein, a simple, fast, and sensitive peptide-modified nanochannel sensor to detect Pb2+ in TCM is reported, which is based on a Pb2+-specific peptide modified porous anodized aluminum membrane (PAAM). This peptide-based nanochannel clearly has the highest selectivity for Pb2+ when compared to other heavy metal ions, including As2+, Cd3+, Co2+, Cr2+, Cu2+, Fe3+, Hg2+, Mg2+, Mn2+, Ni2+, and Zn2+. Based on linear ranges from 0.01 to 0.16 μM and 10 to 100 μM, the detection limit was calculated to be 0.005 μM. Moreover, this peptide-based nanochannel sensor was successfully used to detect Pb2+ in complex TCM samples. In addition, when compared with the gold standard atomic absorption spectrophotometry (AAS) method, the recovery of the peptide-modified nanochannel sensor was between 87.7% and 116.8%. The experimental results prove that this new sensor is able to achieve accurate detection of Pb2+ in TCM samples. Thus, this sensor system could provide a simple assay for sensitive and selective detection of Pb2+ in TCM, thereby showing great potential in the practical application for the quality control of heavy metals in TCM.
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Affiliation(s)
- Jiyuan Tu
- School of Pharmacy, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China
- Hubei Research Center of Chinese Materia Medica Processing Engineering and Technology, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China
| | - Zhongshi Zhou
- School of Pharmacy, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China
| | - Yanju Liu
- School of Pharmacy, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China
- Hubei Research Center of Chinese Materia Medica Processing Engineering and Technology, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China
| | - Tingxian Li
- School of Pharmacy, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China
| | - Shumin Lu
- School of Laboratory Medicine, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China +86-27-68890259 +86-27-68890259
| | - Ling Xiao
- School of Pharmacy, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China
| | - Pingping Xiao
- School of Laboratory Medicine, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China +86-27-68890259 +86-27-68890259
| | - Guojun Zhang
- School of Laboratory Medicine, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China +86-27-68890259 +86-27-68890259
| | - Zhongyue Sun
- School of Laboratory Medicine, Hubei University of Chinese Medicine 1 Huangjia Lake West Road Wuhan 430065 PR China +86-27-68890259 +86-27-68890259
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36
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Development of an ultrasensitive electrochemical genosensor for detection of HIV-1 pol gene using a gold nanoparticles coated carbon paste electrode impregnated with lead ion-imprinted polymer nanomaterials as a novel electrochemical probe. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105714] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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37
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Darvishi M, Shariati S, Safa F, Islamnezhad A. Surface blocking of azolla modified copper electrode for trace determination of phthalic acid esters as the molecular barricades by differential pulse voltammetry: response surface modelling optimized biosensor. RSC Adv 2021; 11:32630-32646. [PMID: 35493596 PMCID: PMC9042225 DOI: 10.1039/d1ra04714k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 09/26/2021] [Indexed: 11/21/2022] Open
Abstract
In this work, a sensitive and efficient voltammetric biosensor was introduced for differential pulse voltammetric (DPV) determination of dibutyl phthalate, dimethyl phthalate, di(2-ethylhexyl)phthalate and dicyclohexyl phthalate in aqueous solutions.
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Affiliation(s)
- Maryam Darvishi
- Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Shahab Shariati
- Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Fariba Safa
- Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Akbar Islamnezhad
- Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran
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Ji P, Han G, Huang Y, Jiang H, Zhou Q, Liu X, Kong D. Ultrasensitive ratiometric detection of Pb 2+ using DNA tetrahedron-mediated hyperbranched hybridization chain reaction. Anal Chim Acta 2020; 1147:170-177. [PMID: 33485576 DOI: 10.1016/j.aca.2020.12.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 10/22/2022]
Abstract
A fluorescent sensing strategy was developed for rapid, highly sensitive and specific detection of lead (II) ion (Pb2+) on the basis of Pb2+ DNAzyme-controlled tetrahedral DNA nanostructure (TDN)-mediated hyper-branched hybridization chain reaction (hHCR). In this strategy, DNA hairpins used for HCR amplification are modified on the four vertexes of TDN, which are then used to perform rapid TDN-hHCR in the presence of an initiator strand, producing large-sized cross-linked reaction products and thus giving greatly improved fluorescence resonance energy transfer (FRET) signal output. Pb2+ DNAzyme catalyzes the cleavage of the initiator strand, inhibiting the initiation of TDN-hHCR and giving decreased FRET signal. Synergetic signal amplification of Pb2+ DNAzyme-catalyzed cleavage reaction and subsequent TDN-hHCR confers the sensing platform with ultrahigh sensitivity. As low as 0.25 pM Pb2+ can be detected by using either signal "turn-on" or "turn-off" mode. The whole detection process can be finished within 20 min. Strong anti-interference capacity of FRET-based ratiometric detection and high specificity of Pb2+ DNAzyme endow the sensing platform with great practical application potential, which was demonstrated by the accurate detection of Pb2+ in real river water, fruit, vegetable and grain samples.
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Affiliation(s)
- Pingping Ji
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, PR China; Key Laboratory for Environmental Factors Control of Agro-product quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Guimei Han
- College of Chemistry and Chemical Engineering, Jinan, 250000, PR China
| | - Yan Huang
- College of Life sciences, Nankai University, Tianjin, China
| | - Hongxin Jiang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, PR China; Key Laboratory for Environmental Factors Control of Agro-product quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China.
| | - Qiwen Zhou
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, PR China; Key Laboratory for Environmental Factors Control of Agro-product quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China.
| | - Xiaowei Liu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, PR China; Key Laboratory for Environmental Factors Control of Agro-product quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Deming Kong
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, PR China
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39
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Mesa RL, Villa JEL, Khan S, Peixoto RRA, Morgano MA, Gonçalves LM, Sotomayor MDPT, Picasso G. Rational Design of an Ion-Imprinted Polymer for Aqueous Methylmercury Sorption. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2541. [PMID: 33348754 PMCID: PMC7766906 DOI: 10.3390/nano10122541] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 02/06/2023]
Abstract
Methylmercury (MeHg+) is a mercury species that is very toxic for humans, and its monitoring and sorption from environmental samples of water are a public health concern. In this work, a combination of theory and experiment was used to rationally synthesize an ion-imprinted polymer (IIP) with the aim of the extraction of MeHg+ from samples of water. Interactions among MeHg+ and possible reaction components in the pre-polymerization stage were studied by computational simulation using density functional theory. Accordingly, 2-mercaptobenzimidazole (MBI) and 2-mercaptobenzothiazole (MBT), acrylic acid (AA) and ethanol were predicted as excellent sulfhydryl ligands, a functional monomer and porogenic solvent, respectively. Characterization studies by scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) revealed the obtention of porous materials with specific surface areas of 11 m2 g-1 (IIP-MBI-AA) and 5.3 m2 g-1 (IIP-MBT-AA). Under optimized conditions, the maximum adsorption capacities were 157 µg g-1 (for IIP-MBI-AA) and 457 µg g-1 (for IIP-MBT-AA). The IIP-MBT-AA was selected for further experiments and application, and the selectivity coefficients were MeHg+/Hg2+ (0.86), MeHg+/Cd2+ (260), MeHg+/Pb2+ (288) and MeHg+/Zn2+ (1510), highlighting the material's high affinity for MeHg+. The IIP was successfully applied to the sorption of MeHg+ in river and tap water samples at environmentally relevant concentrations.
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Affiliation(s)
- Ruddy L. Mesa
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Lima 15333, Peru; (R.L.M.M.); (S.K.)
| | - Javier E. L. Villa
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara, SP 14800-060, Brazil;
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP 14800-060, Brazil
| | - Sabir Khan
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Lima 15333, Peru; (R.L.M.M.); (S.K.)
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara, SP 14800-060, Brazil;
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP 14800-060, Brazil
| | - Rafaella R. Alves Peixoto
- Department of Analytical Chemistry, Fluminense Federal University (UFF), Niterói, RJ 24020-150, Brazil;
| | | | | | - Maria D. P. T. Sotomayor
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara, SP 14800-060, Brazil;
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP 14800-060, Brazil
| | - Gino Picasso
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Lima 15333, Peru; (R.L.M.M.); (S.K.)
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High index facets-Ag nanoflower enabled efficient electrochemical detection of lead in blood serum and cosmetics. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114657] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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41
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Stortini AM, Baldo MA, Moro G, Polo F, Moretto LM. Bio- and Biomimetic Receptors for Electrochemical Sensing of Heavy Metal Ions. SENSORS (BASEL, SWITZERLAND) 2020; 20:E6800. [PMID: 33260737 PMCID: PMC7731017 DOI: 10.3390/s20236800] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 02/07/2023]
Abstract
Heavy metals ions (HMI), if not properly handled, used and disposed, are a hazard for the ecosystem and pose serious risks for human health. They are counted among the most common environmental pollutants, mainly originating from anthropogenic sources, such as agricultural, industrial and/or domestic effluents, atmospheric emissions, etc. To face this issue, it is necessary not only to determine the origin, distribution and the concentration of HMI but also to rapidly (possibly in real-time) monitor their concentration levels in situ. Therefore, portable, low-cost and high performing analytical tools are urgently needed. Even though in the last decades many analytical tools and methodologies have been designed to this aim, there are still several open challenges. Compared with the traditional analytical techniques, such as atomic absorption/emission spectroscopy, inductively coupled plasma mass spectrometry and/or high-performance liquid chromatography coupled with electrochemical or UV-VIS detectors, bio- and biomimetic electrochemical sensors provide high sensitivity, selectivity and rapid responses within portable and user-friendly devices. In this review, the advances in HMI sensing in the last five years (2016-2020) are addressed. Key examples of bio and biomimetic electrochemical, impedimetric and electrochemiluminescence-based sensors for Hg2+, Cu2+, Pb2+, Cd2+, Cr6+, Zn2+ and Tl+ are described and discussed.
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Affiliation(s)
| | | | | | | | - Ligia Maria Moretto
- Department of Molecular Science and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venice, Italy; (A.M.S.); (M.A.B.); (G.M.); (F.P.)
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Dual-signal from sandwich structural sensing interface for NADH electrochemical sensitive detection. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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43
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Jakavula S, Biata NR, Dimpe KM, Pakade VE, Nomngongo PN. A Critical Review on the Synthesis and Application of Ion-Imprinted Polymers for Selective Preconcentration, Speciation, Removal and Determination of Trace and Essential Metals from Different Matrices. Crit Rev Anal Chem 2020; 52:314-326. [PMID: 32723191 DOI: 10.1080/10408347.2020.1798210] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The presence of toxic trace metals and high concentrations of essential elements in the environment presents a serious threat to living organism. Various methods have been used for the detection, preconcentration and remediation of these metals from biological, environmental and food matrices. Owing to the complexicity of samples, methods with high selectivity have been used for detection, preconcentration and remediation of these trace metals. These methods are achieved by the use of ion-imprinted polymers (IIPs) due to their impressive properties such as selectivity, high extraction efficiency, speciation capability and reusability. Because of the increase of toxic trace and essential metals in the environment, IIPs have attracted great use in analytical chemistry. This review, provide a brief background on IIPs and polymerization method that are used for their preparation. Recent applications of IIPs as adsorbents for preconcentration, removal, speciation and electrochemical detection of trace and essential metal is also discussed.
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Affiliation(s)
- Silindokuhle Jakavula
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa.,DSI/NRF SARChI Chair, Nanotechnology for Water, University of Johannesburg, Doornfontein, South Africa
| | - N Raphael Biata
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa.,DSI/NRF SARChI Chair, Nanotechnology for Water, University of Johannesburg, Doornfontein, South Africa.,DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein, South Africa
| | - K Mogolodi Dimpe
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa
| | - Vusumzi E Pakade
- Department of Chemistry, Vaal University of Technology, Vanderbijlpark, South Africa
| | - Philiswa N Nomngongo
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa.,DSI/NRF SARChI Chair, Nanotechnology for Water, University of Johannesburg, Doornfontein, South Africa.,DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein, South Africa
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Oliveira VH, Rechotnek F, da Silva EP, Marques VDS, Rubira AF, Silva R, Lourenço SA, Muniz EC. A sensitive electrochemical sensor for Pb2+ ions based on ZnO nanofibers functionalized by L-cysteine. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113041] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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The Use of Aptamers and Molecularly Imprinted Polymers in Biosensors for Environmental Monitoring: A Tale of Two Receptors. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8020032] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Effective molecular recognition remains a major challenge in the development of robust receptors for biosensing applications. Over the last three decades, aptamers and molecularly imprinted polymers (MIPs) have emerged as the receptors of choice for use in biosensors as viable alternatives to natural antibodies, due to their superior stability, comparable binding performance, and lower costs. Although both of these technologies have been developed in parallel, they both suffer from their own unique problems. In this review, we will compare and contrast both types of receptor, with a focus on the area of environmental monitoring. Firstly, we will discuss the strategies and challenges involved in their development. We will also discuss the challenges that are involved in interfacing them with the biosensors. We will then compare and contrast their performance with a focus on their use in the detection of environmental contaminants, namely, antibiotics, pesticides, heavy metals, and pathogens detection. Finally, we will discuss the future direction of these two technologies.
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