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Li M, Liu H, He B, Xie L, Cao X, Jin H, Wei M, Ren W, Suo Z, Xu Y. Ultrasensitive label-free electrochemical aptasensor for Pb 2+ detection exploiting Exo III amplification and AgPt/GO nanocomposite-enhanced transduction. Talanta 2024; 276:126260. [PMID: 38759364 DOI: 10.1016/j.talanta.2024.126260] [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: 01/05/2024] [Revised: 04/18/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
Lead ion pollution has become a serious public health concern worldwide. Therefore, sensitive detection of Pb2+ is critical to control lead pollution, assess risks, and safeguard the health of vulnerable populations. This study reports a highly sensitive labelling-free electrochemical aptasensor for Pb2+ detection. The aptasensor employs silver-platinum nanoparticles/graphene oxide (AgPt/GO) and Exonuclease III (Exo III) for signal amplification. GO provides high surface area and conductivity for immobilizing AgPt NPs, facilitating the immobilization of aptamer (Apt) probes on the electrode surface. Exo III enzymatically cleaves DNA strands on the electrode surface, releasing DNA segments to amplify the signal further. The synergistic amplification by AgPt/GO and ExoIII enables an extremely wide linear detection range of 0.05 pM-5 nM for Pb2+, with a low detection limit of 0.019 pM. Additionally, the G-quadruplex structure ensures excellent selectivity for Pb2+ detection, resulting in high reproducibility and stability of the aptasensor. The aptasensor was successfully applied to detect spiked Pb2+ in tap water samples, achieving recovery rates ranging from 96 to 108.4 %. By integrating nanomaterials, aptamers and enzymatic amplification, the aptasensor facilitates highly sensitive and selective detection of Pb2+, demonstrating potential for practical applications in environmental monitoring.
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Affiliation(s)
- Mengyang Li
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China.
| | - Hui Liu
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
| | - Baoshan He
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China.
| | - Lingling Xie
- School of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
| | - Xiaoyu Cao
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
| | - Huali Jin
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
| | - Min Wei
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
| | - Wenjie Ren
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
| | - Zhiguang Suo
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
| | - Yiwei Xu
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, PR China
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Hao X, Liu Z, Zheng T, Fan Y, Hu L. Label-free electrochemical aptasensor for ultrasensitive lead ion detection based on flower-like AuNPs@MoS 2 and core-shell Pt@Pd bimetallic nanoparticles. Mikrochim Acta 2024; 191:358. [PMID: 38819654 DOI: 10.1007/s00604-024-06414-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 05/04/2024] [Indexed: 06/01/2024]
Abstract
A signal-amplified platform was designed to construct a label-free electrochemical aptasensor for lead ions (Pb2+) assay. First, flower-like molybdenum disulfide-supported AuNPs (AuNPs@MoS2) nanocomposites were synthesized and used as substrates for modifying the electrode. The AuNPs@MoS2 material possessed large surface area and superior biocompatibility, which was beneficial to improve the loading amount of the complementary DNA (cDNA) and amplified the response signal. Importantly, the prepared core-shell Pt@Pd bimetallic nanoparticles (Pt@PdNPs) were used to conjugate with redox marker thionine (Thi) and aptamer (Apt) for further signal amplification; the obtained signal probes (Thi-Pt@PdNPs-Apt) were connected by the cDNA assembled on the electrode through DNA hybridization. Differential pulse voltammetry was performed to monitor the signal of Thi. After incubating of aptasensor with Pb2+, the specific recognition of Pb2+ and Apt resulted in the dissociation of aptamer-cDNA complex, thereby the Thi-Pt@PdNPs-Apt separated from the electrode surface and decreased current response was obtained. The prepared electrochemical sensor exhibited linear response to Pb2+ in the range 5.0 × 10-4-100 nM and a detection limit of 1.0 × 10-4 nM was achieved. The sensor was applied to the determination of Pb2+ in actual sample with high sensitivity and accuracy, demonstrating potential applications in heavy metal monitoring.
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Affiliation(s)
- Xuanxuan Hao
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, 450001, People's Republic of China
| | - Zhimin Liu
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, 450001, People's Republic of China.
| | - Tongtong Zheng
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, 450001, People's Republic of China
| | - Yunfeng Fan
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, 450001, People's Republic of China
| | - Leqian Hu
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, 450001, People's Republic of China
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Bouali W, Erk N, Genc AA. A low-cost voltammetric sensor based on multi-walled carbon nanotubes for highly sensitive and accurate determination of nanomolar levels of the anticancer drug Ribociclib in bulk and biological fluids. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1623-1630. [PMID: 38406987 DOI: 10.1039/d3ay02194g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
In this study, we present the development and comprehensive characterization of the first electrochemical sensor utilizing multi-walled carbon nanotubes (MWCNTs) for the sensitive and precise detection of Ribociclib (RIBO), an important anticancer drug. The sensor underwent systematic optimization, focusing on critical parameters such as pH, deposition potential, and cumulative time to enhance its electrocatalytic activity and expand the linear range for RIBO determination. The MWCNTs/GCE sensor exhibited excellent reproducibility and repeatability, ensuring reliable and consistent results. The applicability and feasibility of the sensor for real sample analysis were extensively evaluated by analyzing human serum, urine, and tablet samples using the standard addition method. The obtained percent recovery values demonstrated the sensor's exceptional accuracy and precision. Furthermore, interference studies revealed the sensor's remarkable selectivity, with minimal impact from common interfering substances. The developed sensor displayed a wide linear range of 0.01 μM to 5.0 μM, with a limit of detection (LOD) and limit of quantification (LOQ) calculated to be 0.69 nM and 2.31 nM, respectively, affirming its high sensitivity for detecting low RIBO concentrations. The MWCNTs/GCE sensor demonstrates substantial promise for diverse practical applications with its simplicity, cost-effectiveness, and excellent analytical performance.
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Affiliation(s)
- Wiem Bouali
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560 Ankara, Turkey.
- The Graduate School of the Health Sciences, Ankara University, 06110 Ankara, Turkey
| | - Nevin Erk
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560 Ankara, Turkey.
| | - Asena Ayse Genc
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560 Ankara, Turkey.
- The Graduate School of the Health Sciences, Ankara University, 06110 Ankara, Turkey
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Zhao S, Yang J, Wang L, Dong B, Mao Y, Qu H, Zheng L. Selective detection of Pb 2+ ions based on a graphene field-effect transistor gated by DNAzymes in binding mode. Biosens Bioelectron 2023; 237:115549. [PMID: 37523810 DOI: 10.1016/j.bios.2023.115549] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 07/13/2023] [Accepted: 07/25/2023] [Indexed: 08/02/2023]
Abstract
Heavy metal contamination has become a severe threat to dairy products through contaminated feed and the environment water. Among them, Pb(II) is highly toxic to the human body even under minimal exposure. Therefore, establishing a fast and sensitive Pb2+ detection technology is significant for rapid screening of vast number of dairy products. Hererin, we report the development of a sensitive and selective Pb(II) biosensor based on a solution-gated graphene transistor (SGGT) with the gate modified by Pb2+-dependent DNAzyme probes. It has also been explored that the DNAzymes working in simple binding mode integrate better with the SGGT than those working in normal catalytic mode, showing significantly stronger channel current responses and lower detection limit down to 0.39 μg/L (or 1.9 nM). Finally, the biosensor was practicably applied to the detection of lead ions in pure milk samples with a high recovery rate. We believe that this work reveals the best strategy for integrating metal ion dependent DNAzyme probes with SGGT sensing platforms to selectively and sensitively detect many metal ions.
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Affiliation(s)
- Siyu Zhao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jing Yang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Lu Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China; Intelligent Manufacturing Institute of HFUT, Hefei, 230009, China
| | - Baolei Dong
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yu Mao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Hao Qu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China; Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei, 230009, China.
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China; Intelligent Interconnected Systems Laboratory of Anhui Province, Hefei University of Technology, Hefei, 230009, China
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Gao J, Xu P, Qiao L, Tao Y, Xiao Y, Qin H, Zhu Y, Zhang Y. Triplex DNA Helix Sensor Based on Reduced Graphene Oxide and Electrodeposited Gold Nanoparticles for Sensitive Lead(II) Detection. TOXICS 2023; 11:795. [PMID: 37755805 PMCID: PMC10536607 DOI: 10.3390/toxics11090795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023]
Abstract
A triplex DNA electrochemical sensor based on reduced graphene oxide (rGO) and electrodeposited gold nanoparticles (EAu) was simply fabricated for Pb2+ detection. The glass carbon electrode (GCE) sequentially electrodeposited with rGO and EAu was further modified with a triplex DNA helix that consisted of a guanine (G)-rich circle and a stem of triplex helix based on T-A•T base triplets. With the existence of Pb2+, the DNA configuration which was formed via the Watson-Crick and Hoogsteen base pairings was split and transformed into a G-quadruplex. An adequate electrochemical response signal was provided by the signal indicator methylene blue (MB). The proposed sensor demonstrated a linear relationship between the differential pulse voltammetry (DPV) peak currents and the logarithm of Pb2+ concentrations from 0.01 to 100.00 μM with a detection limit of 0.36 nM. The proposed sensor was also tested with tap water, river and medical wastewater samples with qualified recovery and accuracy and represented a promising method for Pb2+ detection.
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Affiliation(s)
- Jing Gao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Lu Qiao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Yani Tao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Yao Xiao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Hong Qin
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Yuan Zhu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Yi Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (J.G.); (P.X.); (L.Q.); (Y.T.); (Y.X.); (H.Q.)
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
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Zhang Z, Karimi-Maleh H, Wen Y, Darabi R, Wu T, Alostani P, Ghalkhani M. Nanohybrid of antimonene@Ti 3C 2T x-based electrochemical aptasensor for lead detection. ENVIRONMENTAL RESEARCH 2023; 233:116355. [PMID: 37329944 DOI: 10.1016/j.envres.2023.116355] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/21/2023] [Accepted: 06/06/2023] [Indexed: 06/19/2023]
Abstract
Lead ions (Pb2+), as one of many common heavy metallic environmental pollutants, can cause serious side-effects and result in chronic poisoning to people's health, so it is highly significant to monitor Pb2+ efficiently and sensitively. Here, we proposed an antimonene@Ti3C2Tx nanohybrid-based electrochemical aptamer sensor (aptasensor) for high sensitive Pb2+ determination. The sensing platform of nanohybrid was synthesized by ultrasonication, possessing the advantages of both antimonene and Ti3C2Tx, which not only can vastly enlarge the sensing signal of the proposed aptasensor, but also greatly simplified its manufacturing flow, because antimonene can strongly interact with aptamer through noncovalently bound. The surface morphology and microarchitecture of the nanohybrid were perused by several methods such as scanning electron microscope (SEM), energy-dispersive X-ray mapping spectroscopy (EDS), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and atomic force microscope (AFM). Under optimal empirical conditions, the proposed aptasensor exhibited a wide linear correlation of the current signals with the logarithm of CPb2+ (Log CPb2+) over the span from 1 × 10-12 to 1 × 10-7 M and provided a trace discernment limit of 3.3 × 10-13 M. Moreover, the constructed aptasensor displayed superior repeatability, great consistency, eminent selectivity, and beneficial reproducibility, implying its extreme potential application for water quality control and the environmental monitoring of Pb2+.
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Affiliation(s)
- Zhouxiang Zhang
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China
| | - Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, China; Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Islamic Republic of Iran.
| | - Yangpin Wen
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Rozhin Darabi
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China
| | - Tao Wu
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China
| | - Pardis Alostani
- Department of Food Science and Technology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Masoumeh Ghalkhani
- Electrochemical Sensors Research Laboratory, Department of Chemistry, Faculty of Science, Shahid Rajaee Teacher Training University, Lavizan, P.O. Box 16785-163, Tehran, 167881-5811, Iran
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Zhang Z, Karimi-Maleh H. In situ synthesis of label-free electrochemical aptasensor-based sandwich-like AuNPs/PPy/Ti 3C 2T x for ultrasensitive detection of lead ions as hazardous pollutants in environmental fluids. CHEMOSPHERE 2023; 324:138302. [PMID: 36871797 DOI: 10.1016/j.chemosphere.2023.138302] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/24/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
The monitoring of hazardous pollutants in environmental fluids is one of main stretaegy in investigation of water and soil quality. Metal ions are one of main and dangerius materials in water sampels and one of the main causes of environmental problems. Therefore, many of environmental researchers focused on fabrication of highly sensitive sensor to ion hazardous pollutants environmental fluids. The encapsulation of 2D MXenes with other stable materials has proven to be an effective method for enhancing their stability and electrochemical properties. In this work, a sandwich-like nanocomposite structure, AuNPs/PPy/Ti3C2Tx, was designed and synthesized via a facile method of one-step layer-by-layer self-assembly. The morphology and structure of the prepared nanocomposites are characterized with various methods such as scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). Ti3C2Tx as a substrate played a significant role in the synthesis and alignment of PPy and AuNPs growth. The nanocomposites have maximized the benefits of the inorganic AuNPs and organic PPy materials, enhancing their stability and electrochemical performance. Meanwhile, AuNPs have given the nanocomposite the ability to form covalent bonds with biomaterials via the Au-S bond. Thus, a novel electrochemical aptasensor was developed based on AuNPs/PPy/Ti3C2Tx for the sensitive and selective detection of Pb2+. It demonstrated a wide linear range from 5 × 10-14 to 1 × 10-8 M with a low LOD of 1 × 10-14 M (S/N = 3). Additionally, the developed aptasensor exhibited excellent selectivity and stability and successfully used to sensing of Pb2+ in environmental fluids such as NongFu Spring and tap water.
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Affiliation(s)
- Zhouxiang Zhang
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China
| | - Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China.
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Ouyang X, Feng C, Zhu X, Liao Y, Zhou Z, Fan X, Zhang Z, Chen L, Tang L. 3D printed bionic self-powered sensing device based on fern-shaped nitrogen doped BiVO4 photoanode with enriched oxygen vacancies. Biosens Bioelectron 2022; 220:114817. [DOI: 10.1016/j.bios.2022.114817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/06/2022] [Accepted: 10/12/2022] [Indexed: 11/17/2022]
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Dual signal-based electrochemical aptasensor for simultaneous detection of Lead(II) and Mercury(II) in environmental water samples. Biosens Bioelectron 2022; 209:114280. [DOI: 10.1016/j.bios.2022.114280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/28/2022] [Accepted: 04/09/2022] [Indexed: 12/14/2022]
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Li D, Chen C, Guo X, Liu C, Yang W. A simple electrochemiluminesecence aptasenor using a GCE/NCQDs/aptamers for detection of Pb. ENVIRONMENTAL TECHNOLOGY 2022; 43:2270-2277. [PMID: 33428535 DOI: 10.1080/09593330.2021.1871661] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/25/2020] [Indexed: 06/12/2023]
Abstract
An electrochemiluminescence (ECL) aptasensor was prepared to detect Pb2+ with nitrogen-doped carbon quantum dots (NCQDs) as ECL materials. To prepare the working electrode, NCQDs with carboxyl groups were loaded on a glassy carbon electrode (GCE) and then Pb2+ aptamers were covalently bound to the NCQDs to form a stable GCE/NCQDs/aptamers. On addition of Pb2+, the chain aptamers change to a pb2+ G-quadruplex conformation, which lead to a large decrease in the ECL intensity. The variation of intensity and the logarithm of the Pb2+ concentration had a good linear relationship (R2 = 0.998). The detection range was wide (50 pM to 387.9 nM) with a low detection limit (18.9 pM). In interference experiments, the ECL Pb2+ aptasensor did not suffer from interference and it had good stability. The NCQDs ECL aptasensor can detect Pb2+ quickly and accurately, and provides a fast and efficient method for detection of Pb2+. Compared with literatures, the Pb2+ aptasensor has simpler preparation process, lower cost; furthermore, it is more environmentally friendly.
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Affiliation(s)
- Danyang Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, People's Republic of China
| | - Chi Chen
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, People's Republic of China
| | - Xuefei Guo
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, People's Republic of China
| | - Changxia Liu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, People's Republic of China
| | - Wensheng Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, People's Republic of China
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Chen Z, Xie M, Zhao F, Han S. Application of Nanomaterial Modified Aptamer-Based Electrochemical Sensor in Detection of Heavy Metal Ions. Foods 2022; 11:1404. [PMID: 35626973 PMCID: PMC9140949 DOI: 10.3390/foods11101404] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/07/2022] [Accepted: 05/10/2022] [Indexed: 02/07/2023] Open
Abstract
Heavy metal pollution resulting from significant heavy metal waste discharge is increasingly serious. Traditional methods for the detection of heavy metal ions have high requirements on external conditions, so developing a sensitive, simple, and reproducible detection method is becoming an urgent need. The aptamer, as a new kind of artificial probe, has received more attention in recent years for its high sensitivity, easy acquisition, wide target range, and wide use in the detection of various harmful substances. The detection platform that an aptamer-based electrochemical biosensor (E-apt sensor) provides is a new approach for the detection of heavy metal ions. Nanomaterials are particularly important in the construction of E-apt sensors, as they can be used as aptamer carriers or sensitizers to stimulate or inhibit electrochemical signals, thus significantly improving the detection sensitivity. This review summarizes the application of different types of nanomaterials in E-apt sensors. The construction methods and research progress of the E-apt sensor based on different working principles are systematically introduced. Moreover, the advantages and challenges of the E-apt sensor in heavy metal ion detection are summarized.
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Affiliation(s)
- Zanlin Chen
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China; (Z.C.); (M.X.)
| | - Miaojia Xie
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China; (Z.C.); (M.X.)
| | - Fengguang Zhao
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510006, China;
| | - Shuangyan Han
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China; (Z.C.); (M.X.)
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(MXene)/Au/DNA Aptasensor for the Ultraselective Electrochemical Detection of Lead in Water Samples. ELECTROANAL 2022. [DOI: 10.1002/elan.202100685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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13
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Gavrilaș S, Ursachi CȘ, Perța-Crișan S, Munteanu FD. Recent Trends in Biosensors for Environmental Quality Monitoring. SENSORS (BASEL, SWITZERLAND) 2022; 22:1513. [PMID: 35214408 PMCID: PMC8879434 DOI: 10.3390/s22041513] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 05/07/2023]
Abstract
The monitoring of environmental pollution requires fast, reliable, cost-effective and small devices. This need explains the recent trends in the development of biosensing devices for pollutant detection. The present review aims to summarize the newest trends regarding the use of biosensors to detect environmental contaminants. Enzyme, whole cell, antibody, aptamer, and DNA-based biosensors and biomimetic sensors are discussed. We summarize their applicability to the detection of various pollutants and mention their constructive characteristics. Several detection principles are used in biosensor design: amperometry, conductometry, luminescence, etc. They differ in terms of rapidity, sensitivity, profitability, and design. Each one is characterized by specific selectivity and detection limits depending on the sensitive element. Mimetic biosensors are slowly gaining attention from researchers and users due to their advantages compared with classical ones. Further studies are necessary for the development of robust biosensing devices that can successfully be used for the detection of pollutants from complex matrices without prior sample preparation.
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Affiliation(s)
| | | | | | - Florentina-Daniela Munteanu
- Faculty of Food Engineering, Tourism and Environmental Protection, “Aurel Vlaicu” University of Arad, Tourism and Environmental Protection, 2-4 E. Drăgoi Str., 310330 Arad, Romania; (S.G.); (C.Ș.U.); (S.P.-C.)
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14
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He W, Xie Y, Yin Q, Zhao Z, Shi L, Wang H. A new “on–off–on” g-C 3N 4 nanosheets fluorescent sensor for 5-Br-PADAP and Co 2+ under acidic conditions. NEW J CHEM 2022. [DOI: 10.1039/d1nj03492h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel “on–off–on” g-C3N4 nanosheet fluorescent sensor based on IFE could detect 5-Br-PADAP and Co2+ under acidic conditions.
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Affiliation(s)
- Wen He
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang, Hunan 421001, P. R. China
| | - Yongbo Xie
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang, Hunan 421001, P. R. China
| | - Qiang Yin
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang, Hunan 421001, P. R. China
| | - Zixuan Zhao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, P. R. China
| | - Lang Shi
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, P. R. China
| | - Hongqing Wang
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang, Hunan 421001, P. R. China
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15
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Yang L, Liu YL, Ji XX, Liu CG, Fu Y, Ye F. A novel luminescent sensor based on Tb@UiO-66 for highly detecting Sm3+ and teflubenzuron. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.07.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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16
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Zhang Y, Zhu Y, Zeng Z, Zeng G, Xiao R, Wang Y, Hu Y, Tang L, Feng C. Sensors for the environmental pollutant detection: Are we already there? Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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17
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Metal and metal oxide nanoparticles in the voltammetric detection of heavy metals: A review. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116014] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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18
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Yashas SR, Sandeep S, Shivakumar BP, Swamy NK. Potentiometric polyphenol oxidase biosensor for sensitive determination of phenolic micropollutant in environmental samples. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27234-27243. [PMID: 31134539 DOI: 10.1007/s11356-019-05495-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/15/2019] [Indexed: 06/09/2023]
Abstract
The present study demonstrates the development of polyphenol oxidase (PPO) biosensor for the detection of catechol using strontium copper oxide (SrCuO2) and polypyrrole nanotubes (PPyNT) matrix. The SrCuO2 micro-seeds, a perovskite compound, are synthesized by co-precipitation under pH 8.0. The as-synthesized micro-seeds are characterized by scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction spectroscopy (XRD). The proposed sensor is fabricated on pencil graphite (P-Gr) by successive deposition of PPyNT, SrCuO2, and PPO enzyme. The developed PPO/SrCuO2/PPyNT/P-Gr sensor is characterized by cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS) techniques. The PPO/SrCuO2/PPyNT/P-Gr displayed excellent electrocatalytic activity towards the oxidation and detection of catechol. The as-developed sensor showed sensitive response ascribing to limit of detection (LOD) of 0.15 μM and sensitivity of 15.60 μA μM-1 cm-2. The fabricated sensor exhibited excellent repeatability and longer shelf life. The proposed biosensor finds its application within the broad linear range of 1-50 μM. Real sample analysis of mineral water, tap water, and domestic wastewater using developed sensor showed acceptable recovery. Hence, the biosensor endeavors its application in environmental monitoring and protection.
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Affiliation(s)
- Shivamurthy Ravindra Yashas
- Department of Environmental Engineering, JSS Science and Technology University, Mysuru, Karnataka, 570006, India
| | - Shadakshari Sandeep
- Department of Chemistry, JSS Science and Technology University, Mysuru, Karnataka, 570006, India
| | | | - Ningappa Kumara Swamy
- Department of Chemistry, JSS Science and Technology University, Mysuru, Karnataka, 570006, India.
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19
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Priya T, Dhanalakshmi N, Thennarasu S, Pulikkutty S, Karthikeyan V, Thinakaran N. Synchronous detection of cadmium and lead in honey, cocos nucifera and egg white samples using multiwalled carbon nanotube/hyaluronic acid/amino acids nanocomposites. Food Chem 2020; 317:126430. [DOI: 10.1016/j.foodchem.2020.126430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 01/13/2020] [Accepted: 02/17/2020] [Indexed: 12/07/2022]
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20
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Yuan MM, Zou J, Huang ZN, Peng DM, Yu JG. PtNPs-GNPs-MWCNTs-β-CD nanocomposite modified glassy carbon electrode for sensitive electrochemical detection of folic acid. Anal Bioanal Chem 2020; 412:2551-2564. [PMID: 32162086 DOI: 10.1007/s00216-020-02488-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/28/2020] [Accepted: 02/03/2020] [Indexed: 12/23/2022]
Abstract
A novel electrochemical sensor, platinum nanoparticles/graphene nanoplatelets/multi-walled carbon nanotubes/β-cyclodextrin composite (PtNPs-GNPs-MWCNTs-β-CD) modified carbon glass electrode (GCE), was fabricated and used for the sensitive detection of folic acid (FA). The PtNPs-GNPs-MWCNTs-β-CD nanocomposite was easily prepared with an ultrasound-assisted assembly method, and it was characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrochemical behavior of FA at PtNPs-GNPs-MWCNTs-β-CD/GCE was investigated in detail. Some key experimental parameters such as pH, amount of PtNPs-GNPs-MWCNTs-β-CD composite, and scan rate were optimized. A good linear relationship (R2 = 0.9942) between peak current of cyclic voltammetry (CV) and FA concentration in the range 0.02-0.50 mmol L-1 was observed at PtNPs-GNPs-MWCNTs-β-CD/GCE. The detection limit was 0.48 μmol L-1 (signal-to-noise ratio = 3). A recovery of 97.55-102.96% was obtained for the determination of FA in FA pills (containing 0.4 mg FA per pill) at PtNPs-GNPs-MWCNTs-β-CD/GCE, indicating that the modified electrode possessed relatively high sensitivity and stability for the determination of FA in real samples.
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Affiliation(s)
- Meng-Meng Yuan
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Jiao Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Zhao-Ning Huang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Dong-Ming Peng
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China.
| | - Jin-Gang Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China.
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21
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Beitollahi H, Zaimbashi R, Mahani MT, Tajik S. A label-free aptasensor for highly sensitive detection of homocysteine based on gold nanoparticles. Bioelectrochemistry 2020; 134:107497. [PMID: 32222669 DOI: 10.1016/j.bioelechem.2020.107497] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/02/2020] [Accepted: 03/02/2020] [Indexed: 11/25/2022]
Abstract
In the present study, an original electrode fabrication approach was devised to create a label free sensitive electrochemical aptasensor for the detection of Homocysteine (Hcy) (Homocysteine signal was used for detection). To bind certain targets, synthetic oligonucleotides used as aptamers (APs) were specifically selected. Aptamers are substitutes for antibodies for analytical devices because of their sensitivity and high affinity. In this study, Hcy-Binding-Aptamer (HBA) was grafted onto the surface of Au nanoparticles/Glassy Carbon Electrode (Au/GCE) in order to create an aptasensor. The effects of buffer concentration, buffer type, interaction time, and aptamer concentration were investigated and optimized. In addition, Differential Pulse Voltammetry (DPV) was implemented to identify homocysteine. Favorable performance was achieved at a detection limit of 0.01 μM (S/N = 3) and linear range 0.05-20.0 μM. Furthermore, the fabricated aptasensor displayed desirable stability and reproducibility. The developed electrochemical aptasensor was found to have reasonable selectivity for the detection of homocysteine in the presence of cysteine and methionine. Analysis of real samples showed good ability of the proposed homocysteine biosensor to provide sensitive, quick, easy, and cost effective measurement of homocysteine in human blood serum and urine samples.
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Affiliation(s)
- Hadi Beitollahi
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.
| | - Reza Zaimbashi
- Department of Chemistry, Graduate University of Advanced Technology, Kerman, Iran
| | - Masoud Torkzadeh Mahani
- Department of Biotechnology, Institute of Science, High Technology & Environmental Science, Graduate University of Advance Technology, Kerman, Iran
| | - Somayeh Tajik
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
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22
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Haq OU, Choi DS, Choi JH, Lee YS. Carbon electrodes with ionic functional groups for enhanced capacitive deionization performance. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.11.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Yahaya Pudza M, Zainal Abidin Z, Abdul Rashid S, Md Yasin F, Noor ASM, Issa MA. Eco-Friendly Sustainable Fluorescent Carbon Dots for the Adsorption of Heavy Metal Ions in Aqueous Environment. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E315. [PMID: 32059384 PMCID: PMC7075143 DOI: 10.3390/nano10020315] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 01/07/2023]
Abstract
The materials and substances required for sustainable water treatment by adsorption technique, are still being researched widely by distinguished classes of researchers. Thus, the need to synthesize substances that can effectively clean up pollutants from the environment cannot be overemphasized. So far, materials in bulk forms that are rich in carbon, such as biochar and varieties of activated carbon have been used for various adsorptive purposes. The use of bulk materials for such purposes are not efficient due to minimal surface areas available for adsorption. This study explores the adsorption task at nano dimension using carbon dots (CDs) from tapioca. The properties of carbon structure and its influence on the adsorptive efficacy of carbon nanoparticles were investigated by energy-dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), high resolution transmission electron microscopy (HrTEM), and atomic force microscopy (AFM). The results implied carbon present in CDs are good adsorbents for effective adsorption of heavy metal ions (lead) with removal efficiency of 80.6% in aqueous environment. The adsorption process as explored by both Langmuir and Freundlich isotherms have proven favorability of the adsorption process. Langmuir form two and three have correlation coefficients R2 at 0.9922 and 0.9912, respectively. The Freundlich isotherm confirms CDs as having defined surface heterogeneity and the exponential distribution of active sites. The adsorption of lead unto CDs obeyed the second order kinetic model with coefficient of determination, R2 of 0.9668 and 0.9996 at an initial lead concentration of 20 mg/L and 100 mg/L, respectively. The findings validated the efficiency of CDs derived from tapioca as an excellent material for further utilization in the environmental fields of wastewater pollution detection and clean up, bio-imaging, and chemical sensing applications.
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Affiliation(s)
- Musa Yahaya Pudza
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (S.A.R.); (F.M.Y.); (M.A.I.)
| | - Zurina Zainal Abidin
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (S.A.R.); (F.M.Y.); (M.A.I.)
| | - Suraya Abdul Rashid
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (S.A.R.); (F.M.Y.); (M.A.I.)
| | - Faizah Md Yasin
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (S.A.R.); (F.M.Y.); (M.A.I.)
| | - A. S. M. Noor
- Department of Computer and Communication System Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia;
| | - Mohammed A. Issa
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (S.A.R.); (F.M.Y.); (M.A.I.)
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24
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Yang L, Liu YL, Liu CG, Ye F, Fu Y. Two luminescent dye@MOFs systems as dual-emitting platforms for efficient pesticides detection. JOURNAL OF HAZARDOUS MATERIALS 2020; 381:120966. [PMID: 31404892 DOI: 10.1016/j.jhazmat.2019.120966] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 08/01/2019] [Accepted: 08/03/2019] [Indexed: 05/19/2023]
Abstract
Pesticides, which can accumulate in soil, water, animals and plants, are essential to world agriculture. Developing a method that can efficiently and quickly detect toxic pesticides is of importance but still a challenge. Here, two luminescent dye@MOFs systems, Rho B@1 and Rho 6G@1, were successfully fabricated based on [Cd2(tib)(btb)(H2O)2]∙NO3∙2DMF (1). This work is the first use of two fluorescent sensors as dual-emitting platforms for detecting pesticides. As a result, the fluorescence intensity ratios between the two main emissions can be tuned using the concentrations of the dye solutions, and the emissions are at 370 nm/606 nm and 370 nm/590 nm for Rho B@1 and Rho 6G@1, respectively. The intensities of the two main emissions of Rho B@1 and Rho 6G@1 are also influenced by the chemical structures of pesticides with electron-withdrawing groups. It is important that high sensitivity and selectivity for sensing pesticides must have good recyclability. Rho B@1 and Rho 6G@1 can still remain stable regarding the detection of nitenpyram even after 5 cycles, with LODs of 0.48 nM for Rho B@1 and 3 nM for Rho 6G@1, which indicate that these two luminescent dye@MOFs systems are excellent fluorescence probe candidates for the selective detection of pesticides.
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Affiliation(s)
- Liu Yang
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Yu-Long Liu
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Cheng-Guo Liu
- Department of State Assets Management, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Fei Ye
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Ying Fu
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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25
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Niu Y, Luo G, Xie H, Zhuang Y, Wu X, Li G, Sun W. Photoelectrochemical aptasensor for lead(II) by exploiting the CdS nanoparticle-assisted photoactivity of TiO 2 nanoparticles and by using the quercetin-copper(II) complex as the DNA intercalator. Mikrochim Acta 2019; 186:826. [PMID: 31754803 DOI: 10.1007/s00604-019-3951-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/17/2019] [Indexed: 01/27/2023]
Abstract
A photoelectrochemical (PEC) aptasensor for Pb(II) detection is described. A nanocomposite consisting of CdS (2.5 μm) and TiO2 nanoparticles (10 nm) was used as a photoactive material, and gold nanochains (Au NCs) as the support for immobilization of the Pb(II)-binding aptamer. The quercetin-copper(II) complex was further employed as the intercalator for the improvement of the photoactivity by embedding it into dsDNA. In the presence of Pb(II), a Pb(II)-stabilized G-quadruplex was formed between Pb(II) and DNA S1. This is accompanied by unwinding of the dsDNA and the release of the quercetin-copper(II) complex from the surface of the sensor. This results in a decrease of the photocurrent that drops linearly from 5.0 × 10-12 to 1.0 × 10-8 mol·L-1 Pb(II) concentration range with a detection limit of 1.6 × 10-12 mol·L-1. The method was applied to the determination of Pb(II) in various samples and gave satisfactory results. Graphical abstractA photoelectrochemical aptasensor was fabricated for the detection of Pb(II) based on CdS-TiO2 nanocomposite modified indium tin oxide (ITO) electrode. Gold nanochains (AuNCs) were used as anchor to immobilize the aptamers S1 and S2 that form a double helix structure by DNA hybridization. After embedding of quercetin-copper(II) complex as intercalator and electron donor, the concentrations of Pb(II) were determined by the changes of photocurrents.
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Affiliation(s)
- Yanyan Niu
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Guiling Luo
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Hui Xie
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Yujiao Zhuang
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Xianqun Wu
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Guangjiu Li
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
| | - Wei Sun
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China.
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26
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Wang L, Peng X, Fu H, Huang C, Li Y, Liu Z. Recent advances in the development of electrochemical aptasensors for detection of heavy metals in food. Biosens Bioelectron 2019; 147:111777. [PMID: 31634804 DOI: 10.1016/j.bios.2019.111777] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 01/12/2023]
Abstract
Heavy metal contamination in environment and food has attracted intensive attention from the public since it poses serious threats to ecological system and human health. Traditional detection methods for heavy metals such as atomic absorption spectrometry have a fairly low detection limit, but the methods have many limitations and disadvantages. Therefore, it is of significance to develop a rapid technology for real-time and online detection of heavy metals. The electrochemical aptasensor-based technology is promising in the detection of heavy metals with advantages of high sensitivity, specificity, and accuracy. Although its development is rapid, more researches should be carried out before this technology can be used for on-site detection. In this review, the origin, basic principles and development of electrochemical aptasensors are introduced. The applications of nanomaterials and electrochemical aptasensors for the detection of heavy metals (mainly mercury, lead, cadmium, and arsenic) are summarized. The research and application tendency of electrochemical aptasensors for detection of heavy metals are prospected.
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Affiliation(s)
- Liyuan Wang
- College of Food Science and Engineering, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, 41004, China
| | - Xianglian Peng
- College of Food Science and Engineering, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, 41004, China.
| | - Hongjun Fu
- College of Food Science and Engineering, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, 41004, China
| | - Chao Huang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Yaping Li
- College of Food Science and Engineering, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, 41004, China
| | - Zhiming Liu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Department of Biology, Eastern New Mexico University, Portales, NM, 88130, USA
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Khoshbin Z, Housaindokht MR, Izadyar M, Bozorgmehr MR, Verdian A. The investigation of the G-quadruplex aptamer selectivity to Pb 2+ ion: a joint molecular dynamics simulation and density functional theory study. J Biomol Struct Dyn 2019; 38:3659-3675. [PMID: 31496379 DOI: 10.1080/07391102.2019.1664933] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The aptamers with the ability to form a G-quadruplex structure can be stable in the presence of some ions. Hence, study of the interactions between such aptamers and ions can be beneficial to determine the highest selective aptamer toward an ion. In this article, molecular dynamics (MD) simulations and quantum mechanics (QM) calculations have been applied to investigate the selectivity of the T30695 aptamer toward Pb2+ in comparison with some ions. The Free Energy Landscape (FEL) analysis indicates that Pb2+ has remained inside the aptamer during the MD simulation, while the other ions have left it. The Molecular Mechanics Poisson-Boltzmann Surface Area (MM-PBSA) binding energies prove that the conformational stability of the aptamer is the highest in the presence of Pb2+. According to the compaction parameters, the greatest compressed ion-aptamer complex, and hence, the highest ion-aptamer interaction have been induced in the presence of Pb2+. The contact maps clarify the closer contacts between the nucleotides of the aptamer in the presence of Pb2+. The density functional theory (DFT) results show that Pb2+ forms the most stable complex with the aptamer, which is consistent with the MD results. The QM calculations reveal that the N-H bonds and the O…H distances are the longest and the shortest, respectively, in the presence of Pb2+. The obtained results verify that the strongest hydrogen bonds (HBs), and hence, the most compressed aptamer structure are induced by Pb2+. Besides, atoms in molecules (AIM) and natural bond orbital (NBO) analyses confirm the results.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zahra Khoshbin
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Mohammad Izadyar
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Asma Verdian
- Department of Food Safety and Quality Control, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
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28
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Neelam, Chhillar AK, Rana JS. Enzyme nanoparticles and their biosensing applications: A review. Anal Biochem 2019; 581:113345. [DOI: 10.1016/j.ab.2019.113345] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/20/2019] [Accepted: 06/20/2019] [Indexed: 11/25/2022]
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29
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Electrochemical monitoring of reactive oxygen/nitrogen species and redox balance in living cells. Anal Bioanal Chem 2019; 411:4365-4374. [PMID: 31011787 DOI: 10.1007/s00216-019-01734-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/19/2019] [Accepted: 02/27/2019] [Indexed: 10/27/2022]
Abstract
Levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in cells and cell redox balance are of great interest in live cells as they are correlated to several pathological and physiological conditions of living cells. ROS and RNS detection is limited due to their spatially restricted abundance: they are usually located in sub-cellular areas (e.g., in specific organelles) at low concentration. In this work, we will review and highlight the electrochemical approach to this bio-analytical issue. Combining electrochemical methods and miniaturization strategies, specific, highly sensitive, time, and spatially resolved measurements of cellular oxidative stress and redox balance analysis are possible. Graphical abstract In this work, we highlight and review the use of electrochemistry for the highly spatial and temporal resolved detection of ROS/RNS levels and of redox balance in living cells. These levels are central in several pathological and physiological conditions and the electrochemical approach is a vibrant bio-analytical trend in this field.
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30
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Abdi MM, Razalli RL, Tahir PM, Chaibakhsh N, Hassani M, Mir M. Optimized fabrication of newly cholesterol biosensor based on nanocellulose. Int J Biol Macromol 2019; 126:1213-1222. [DOI: 10.1016/j.ijbiomac.2019.01.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/29/2018] [Accepted: 01/01/2019] [Indexed: 01/05/2023]
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31
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Wang X, Fan W, Zhang M, Shang Y, Wang Y, Liu D, Guo H, Dai F, Sun D. Ligand controlled structure of cadmium(II) metal-organic frameworks for fluorescence sensing of Fe3+ ion and nitroaromatic compounds. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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32
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Pundir CS, Yadav N, Chhillar AK. Occurrence, synthesis, toxicity and detection methods for acrylamide determination in processed foods with special reference to biosensors: A review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.01.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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Zhao X, Zhao H, Yan L, Li N, Shi J, Jiang C. Recent Developments in Detection Using Noble Metal Nanoparticles. Crit Rev Anal Chem 2019; 50:97-110. [DOI: 10.1080/10408347.2019.1576496] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Xixi Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi Province, China
| | - Haobin Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi Province, China
| | - Lu Yan
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi Province, China
| | - Na Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi Province, China
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi Province, China
| | - Chunmei Jiang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi Province, China
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Zdybel J, Karamon J, Kłapeć T, Włodarczyk-Ramus M, Różycki M, Bilska-Zając E, Kominek A, Cencek T. Negative effect of flocculant (cationic acrylamide) on detectability of the nematode eggs in sewage sludge. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 231:905-908. [PMID: 30423545 DOI: 10.1016/j.jenvman.2018.10.105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/05/2018] [Accepted: 10/28/2018] [Indexed: 06/09/2023]
Abstract
The use of sewage sludge in agriculture brings the risk of microbiological and parasitological contamination of soil, ground and surface water, as well as cultivated plants. Therefore prior the application to the soil, sewage sludge must be examined, among others, for the presence of live eggs of intestinal parasites. However, the efficiency of commonly used for this purpose parasitological methods is not satisfactory. This is probably due to the presence of flocculants in the sediments used in the dehydration process. The objective of the study was analysis of the effect of flocculant (cationic acrylamide) on the possibilities of isolation of parasite eggs from dehydrated sewage sludge. For this purpose 10 samples of sewage sludge were prepared: 5 containing flocculant and 5 without flocculant. Samples were tested by flotation method according to Quinn. From sewage sludge free of flocculant, 67.8 eggs were isolated, on average, whereas from sludge containing flocculant - only 2.8 eggs. The experiments confirmed that the isolation of eggs from sewage sludge containing flocculant (cationic acrylamide) is much more difficult than from sludge free from this substance and therefore the simple parasitological methods should not be used to examine the dehydrated sewage sludge.
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Affiliation(s)
- Jolanta Zdybel
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute in Puławy, Al. Partyzantów 57, 24-100, Puławy, Poland.
| | - Jacek Karamon
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute in Puławy, Al. Partyzantów 57, 24-100, Puławy, Poland
| | - Teresa Kłapeć
- Department of Biological Health Hazards and Parasitology, Institute of Rural Health, Jaczewskiego 2, 20-090, Lublin, Poland
| | - Magdalena Włodarczyk-Ramus
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute in Puławy, Al. Partyzantów 57, 24-100, Puławy, Poland
| | - Mirosław Różycki
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute in Puławy, Al. Partyzantów 57, 24-100, Puławy, Poland
| | - Ewa Bilska-Zając
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute in Puławy, Al. Partyzantów 57, 24-100, Puławy, Poland
| | - Aleksandra Kominek
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute in Puławy, Al. Partyzantów 57, 24-100, Puławy, Poland
| | - Tomasz Cencek
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute in Puławy, Al. Partyzantów 57, 24-100, Puławy, Poland
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36
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Li N, Du M, Tian S, Ji X, He Z. The behavior of a bipedal DNA walker moving on the surface of magnet microparticles and its application in DNA detection. Anal Bioanal Chem 2019; 411:4055-4061. [PMID: 30693369 DOI: 10.1007/s00216-019-01604-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/16/2018] [Accepted: 01/11/2019] [Indexed: 12/26/2022]
Abstract
In this work, a three-dimensional DNA machine based on the isothermal strand-displacement polymerase reaction (ISDPR) has been constructed. The walking behavior of a DNA walker on the obstructive surface of magnetic beads has also been studied by adding different nucleic acid blocks. The "leg" of the DNA walker could hybridize with a hairpin structure DNA named H1 and lead to the opening of it. And the newly exposed stem would interact with a primer. A strand exchange has happened with the assistance of polymerase and dNTPs, so that the "leg" has been displaced and the DNA walker could be pushed to move on the surface. But the nucleic acid blocks could increase steric hindrance and obstruct this process, which is similar to the behavior of human beings walking on craggy paths. Through changing these blocks, such as the structure, the amount, and the length of blocks, the movement of the DNA walker has been controlled. What's more, the results of its application for DNA detection are satisfactory. The limit of detection is 21.6 pM. Also, this method has been successfully applied in complex biological samples. Graphical abstract ᅟ.
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Affiliation(s)
- Ningxing Li
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China
| | - Mingyuan Du
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China
| | - Songbai Tian
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China
| | - Xinghu Ji
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China
| | - Zhike He
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China.
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37
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On surface energy and acid–base properties of highly porous parent and surface treated activated carbons using inverse gas chromatography. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.09.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Linley S, Holmes A, Leshuk T, Nafo W, Thomson NR, Al-Mayah A, McVey K, Sra K, Gu FX. Targeted nanoparticle binding & detection in petroleum hydrocarbon impacted porous media. CHEMOSPHERE 2019; 215:353-361. [PMID: 30326441 DOI: 10.1016/j.chemosphere.2018.10.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/03/2018] [Accepted: 10/07/2018] [Indexed: 06/08/2023]
Abstract
Targeted nanoparticle binding has become a core feature of experimental pharmaceutical product design which enables more efficient payload delivery and enhances medical imaging by accumulating nanoparticles in specific tissues. Environmental remediation and geophysical monitoring encounter similar challenges which may be addressed in part by the adoption of targeted nanoparticle binding strategies. This study illustrates that engineered nanoparticles can bind to crude oil-impacted silica sand, a selective adsorption driven by active targeting based on an amphiphilic polymer coating. This coating strategy resulted in 2 mg/kg attachment to clean silica sand compared to 8 mg/kg attachment to oil-impacted silica sand. It was also shown that modifying the surface coating influenced the binding behaviour of the engineered nanoparticles - more hydrophobic polymers resulted in increased binding. Successful targeting of Pluronic-coated iron oxide nanoparticles to a crude oil and silica sand mixture was demonstrated through a combined quantitative Orbital Emission Spectroscopy mass analysis supported by Vibrating Scanning Magnetometer magnetometry, and a qualitative X-ray micro-computed tomography (CT) visualization approach. These non-destructive characterization techniques facilitated efficient analysis of nanoparticles in porous medium samples with minimal sample preparation, and in the case of X-Ray CT, illustrated how targeted nanoparticle binding may be used to produce 3-D images of contaminated porous media. This work demonstrated successful implementation of nanoparticle targeted binding toward viscous LNAPL such as crude oil in the presence of a porous medium, a step which opens the door to successful application of targeted delivery technology in environmental remediation and monitoring.
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Affiliation(s)
- Stuart Linley
- Department of Chemical Engineering, University of Waterloo, Waterloo, Canada; Waterloo Institute for Nanotechnology, Canada
| | - Andrew Holmes
- Department of Chemical Engineering, University of Waterloo, Waterloo, Canada; Waterloo Institute for Nanotechnology, Canada
| | - Timothy Leshuk
- Department of Chemical Engineering, University of Waterloo, Waterloo, Canada; Waterloo Institute for Nanotechnology, Canada
| | - Wanis Nafo
- Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Neil R Thomson
- Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, Canada.
| | - Adil Al-Mayah
- Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Kevin McVey
- Chevron Energy Technology Company, Houston, TX, USA
| | | | - Frank X Gu
- Department of Chemical Engineering, University of Waterloo, Waterloo, Canada; Waterloo Institute for Nanotechnology, Canada.
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Cao S, Chen H, Jiang F, Hu Z, Wang X. Construction of Acetaldehyde-Modified g-C 3N 4 Ultrathin Nanosheets via Ethylene Glycol-Assisted Liquid Exfoliation for Selective Fluorescence Sensing of Ag . ACS APPLIED MATERIALS & INTERFACES 2018; 10:44624-44633. [PMID: 30511564 DOI: 10.1021/acsami.8b15501] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We successfully prepared acetaldehyde-modified graphitic carbon nitride (g-C3N4) ultrathin nanosheets (ACNNSs) by a simple ethylene glycol-assisted liquid exfoliation method. The introduction of acetaldehyde regulated the surface energy of g-C3N4 to better match with that of water, which improved the exfoliation efficiency. Moreover, acetaldehyde introduces defects into the g-C3N4 structure, which can act as excitation energy traps and cause considerable variation in the fluorescence emission. Benefiting from the stable photoluminescence emission, good water solubility, and biocompatibility, the obtained ACNNSs showed a selective fluorescent response to Ag+ in both aqueous solution and living cells. The strong absorption and intimate contact with Ag+ and its appropriate redox potential of ACNNSs contributed to this excellent fluorescent response. A simple and environmental friendly approach was proposed to simultaneously achieve modification and exfoliation of g-C3N4 in aqueous solution. These findings might lead to wider applications of carbon-based nanomaterials as active materials for fluorescence detection in the environment.
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Affiliation(s)
- Shihai Cao
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Huan Chen
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Fang Jiang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Zhaoxia Hu
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Xin Wang
- Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education , Nanjing University of Science and Technology , Nanjing 210094 , PR China
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Lu L, Zhou L, Chen J, Yan F, Liu J, Dong X, Xi F, Chen P. Nanochannel-Confined Graphene Quantum Dots for Ultrasensitive Electrochemical Analysis of Complex Samples. ACS NANO 2018; 12:12673-12681. [PMID: 30485066 DOI: 10.1021/acsnano.8b07564] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Herein, we present an electrochemical sensing platform based on nanochannel-confined graphene quantum dots (GQDs) that is able to detect a spectrum of small analytes in complex samples with high sensitivity. Vertically ordered mesoporous silica-nanochannel film (VMSF) is decorated on the supporting electrode, conferring the electrode with excellent antifouling and anti-interference properties through steric exclusion and electrostatic repulsion. The synthesized GQDs with different functionalities are confined in the nanochannels of VMSF through electrophoresis, serving as the recognition element and signal amplifier. Without the usual need of tedious pretreatment, ultrasensitive and fast detection of Hg2+, Cu2+, and Cd2+ (with limits of detection (LOD) of 9.8 pM, 8.3 pM, and 4.3 nM, respectively) and dopamine (LOD of 120 nM) in complex food (Hg2+-contaminated seafood), environmental (soil-leaching solution), and biological (serum) samples are realized as proof-of-concept demonstrations.
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Affiliation(s)
- Lili Lu
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Lin Zhou
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Jie Chen
- School of Chemical & Biomedical Engineering , Nanyang Technological University , 70 Nanyang Drive , Singapore 637457
| | - Fei Yan
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Jiyang Liu
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Xiaoping Dong
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Fengna Xi
- Department of Chemistry , Zhejiang Sci-Tech University , 928 Second Avenue, Xiasha Higher Education Zone , Hangzhou 310018 , PR China
| | - Peng Chen
- School of Chemical & Biomedical Engineering , Nanyang Technological University , 70 Nanyang Drive , Singapore 637457
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Falah S, Xue Y, Taleb A, Beji M. Electrochemical sensors performance: The role of specific surface and recognition receptors footprint. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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42
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Govindan K, Angelin A, Rangarajan M. Critical evaluation of mechanism responsible for biomass abatement during electrochemical coagulation (EC) process: A critical review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 227:335-353. [PMID: 30199730 DOI: 10.1016/j.jenvman.2018.08.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 08/15/2018] [Accepted: 08/26/2018] [Indexed: 06/08/2023]
Abstract
This is a first review paper that delineates fundamental disinfection mechanism undergoes during the simple electrochemical coagulation (EC) process. The elucidation of detailed mechanistic phenomenon of EC process involved would help to enhance the disinfection efficiency. In this context, the biomass (bacteria, virus and algae) abatement mechanism by EC is critically reviewed and rationalized based on the experimental demonstration performed from the recent decade. Whereas, the effect of most significant abiotic operating parameters, dissolved contents and bacteria cell wall composition on biomass reduction are explored in detail. From these analyses, physical removal and chemical inactivation routes are identified for bacteria abatement mechanism during the EC process using sacrificial electrodes. Which includes (i) enmeshment of microbial contaminants by EC flocs, (ii) sweeping flocculation is preferentially for destabilization of negatively charged biomass, and (iii) inactivation/attenuation of micro-organism cell walls by electrochemically induced reactive oxygen species (ROS) or direct interaction of electric field. Perhaps, the overall abatement mechanism attributes due to the aforementioned phenomenon endures independently and/or synergistically during the EC process. Nonetheless, to obtain better understanding of virus and algae abatement mechanism, we require more experimental investigation on algae and virus removal. Eventually, more intensive research efforts on biomass attenuation by EC are most important to reinforce this claim.
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Affiliation(s)
- Kadarkarai Govindan
- Center of Excellence in Advanced Materials and Green Technologies, Department of Chemical Engineering and Material Science, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, Amrita University, Coimbatore, Tamil Nadu, 641 112, India.
| | - Arumugam Angelin
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641 114, Tamil Nadu, India
| | - Murali Rangarajan
- Center of Excellence in Advanced Materials and Green Technologies, Department of Chemical Engineering and Material Science, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, Amrita University, Coimbatore, Tamil Nadu, 641 112, India
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43
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Shtepliuk I, Santangelo MF, Vagin M, Ivanov IG, Khranovskyy V, Iakimov T, Eriksson J, Yakimova R. Understanding Graphene Response to Neutral and Charged Lead Species: Theory and Experiment. MATERIALS 2018; 11:ma11102059. [PMID: 30360390 PMCID: PMC6212856 DOI: 10.3390/ma11102059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/10/2018] [Accepted: 10/19/2018] [Indexed: 12/30/2022]
Abstract
Deep understanding of binding of toxic Lead (Pb) species on the surface of two-dimensional materials is a required prerequisite for the development of next-generation sensors that can provide fast and real-time detection of critically low concentrations. Here we report atomistic insights into the Lead behavior on epitaxial graphene (Gr) on silicon carbide substrates by thorough complementary study of voltammetry, electrical characterization, Raman spectroscopy, and Density Functional Theory (DFT). It is verified that the epitaxial graphene exhibits quasi-reversible anode reactions in aqueous solutions, providing a well-defined redox peak for Pb species and good linearity over a concentration range from 1 nM to 1 µM. The conductometric approach offers another way to investigate Lead adsorption, which is based on the formations of stable charge-transfer complexes affecting the p-type conductivity of epitaxial graphene. Our results suggest the adsorption ability of the epitaxial graphene towards divalent Lead ions is concentration-dependent and tends to saturate at higher concentrations. To elucidate the mechanisms responsible for Pb adsorption, we performed DFT calculations and estimated the solvent-mediated interaction between Lead species in different oxidative forms and graphene. Our results provide central information regarding the energetics and structure of Pb-graphene interacting complexes that underlay the adsorption mechanisms of neutral and divalent Lead species. Such a holistic understanding favors design and synthesis of new sensitive materials for water quality monitoring.
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Affiliation(s)
- Ivan Shtepliuk
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
- Frantsevich Institute for Problems of Materials Science, NASU, 142 Kyiv, Ukraine.
| | | | - Mikhail Vagin
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
- Department of Science and Technology, Physics and Electronics, Linköping University, SE-58183 Linköping, Sweden.
| | - Ivan G Ivanov
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
| | - Volodymyr Khranovskyy
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
| | - Tihomir Iakimov
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
| | - Jens Eriksson
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
| | - Rositsa Yakimova
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
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44
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Zou Q, Li X, Xue T, Mo S, Su Q, Zheng J. Sensitive and Selective Detection of Mercury Ions in Aqueous Media Using an Oligonucleotide-functionalized Nanosensor and SERS Chip. ANAL SCI 2018; 35:493-498. [PMID: 30298820 DOI: 10.2116/analsci.18p381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A surface-enhanced Raman scattering (SERS) platform for the selective trace analysis of Hg2+ ions was reported, based on poly-thymine (T) aptamer/2-naphthalenethiol (2-NT)-modified gold nanoparticles (AuNPs), which was an oligonucleotide-functionalized nanosensor and SERS chip. 2-NT was used as a Raman reporter, and T aptamer could form a T-Hg2+-T structure with Hg2+ ions making an SERS nanosensor absorbed to the SERS chip. The optimum concentrations of DNA and 2-NT were obtained. An average of 960 DNA molecules attached to each AuNP were measured. The limit of detection (LOD) was 1.0 ppt (1.0 × 10-12 g/mL), which is far below the limit of 10.0 ppb for drinking water, stipulated by the World Health Organization. The sensor has the advantages of low detection cost, a simple sample pretreatment, a green solution and reducing false positives. Furthermore, the nanosensor was used for the determination of trace Hg2+ in the water of a lake; a reliable result was obtained accurately.
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Affiliation(s)
- Qiang Zou
- Department of Marine Environmental Science and Technology, School of Marine Science and Technology, Tianjin University.,School of Microelectronics, Tianjin University.,Xuanhuai School of Innovation and Entrepreneurship, Tianjin University
| | - Xin Li
- Department of Marine Environmental Science and Technology, School of Marine Science and Technology, Tianjin University
| | - Tao Xue
- College of Material Science and Engineering, Tianjin University
| | - Shentong Mo
- School of Microelectronics, Tianjin University
| | - Qi Su
- School of Microelectronics, Tianjin University
| | - Jia Zheng
- School of Microelectronics, Tianjin University
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45
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Peng Y, Li Y, Li L, Zhu JJ. A label-free aptasensor for ultrasensitive Pb 2+ detection based on electrochemiluminescence resonance energy transfer between carbon nitride nanofibers and Ru(phen) 32. JOURNAL OF HAZARDOUS MATERIALS 2018; 359:121-128. [PMID: 30014907 DOI: 10.1016/j.jhazmat.2018.07.033] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/06/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
A label-free aptasensor was developed for ultrasensitive detection of Pb2+ based on electrochemiluminescence resonance energy transfer (ECL-RET) from graphitic carbon nitride nanofibers (CNNFs) to Ru(phen)32+. The CNNFs synthesized via a facile two-step hydrolysis-electrolysis strategy showed intense and stable ECL signal by taking advantages of amplifying and stabilizing effect of carbon nanotubes and Au nanoparticles. After the specific hybridation between capture DNA and Pb2+ specific aptamer, Ru(phen)32+ could be captured onto CNNFs modified electrode by effectively intercalating into the grooves of double-strand DNA, thus triggering the ECL-RET and leading to highly enhanced ECL intensity. The presence of Pb2+ would result in the detachment of Ru(phen)32+ and then the inhibition of ECL-RET. Then Pb2+ concentration could be quantified based on ECL change before and after introduction of Pb2+. The target recycling based on exonuclease I (Exo I) mediated digestion of Pb2+-aptamer complex was implemented to further improve the sensitivity. These synergistic amplification strategies enabled the aptasensor to be ultrasensitive for Pb2+ determination with a detection limit of 0.04 pM. The proposed probe was utilized to analyze environmental samples with satisfactory results.
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Affiliation(s)
- Yujiao Peng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China
| | - Yang Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China
| | - Lingling Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
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46
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Zhang X, Huang C, Jiang Y, Jiang Y, Shen J, Han E. Structure-Switching Electrochemical Aptasensor for Single-Step and Specific Detection of Trace Mercury in Dairy Products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:10106-10112. [PMID: 30183296 DOI: 10.1021/acs.jafc.8b03259] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A reagentless and single-step electrochemical aptasensor with separation-free fashion and rapid response is developed for the Hg2+ assay in dairy products. Herein, the sensing strategy is established on Hg2+-induced structural transition of the methylene-blue-tagged single-stranded DNA (ssDNA) from a flexible manner to rigid hairpin-shaped double-stranded DNA (dsDNA), generating an improved peak current for the Hg2+ assay with a detection limit of 0.62 fM. Importantly, the best signal-to-noise ratio value can be obtained by exploiting Au flowers as sensing material and the optimal ssDNA concentration. The proposed sensor also exhibits high selectivity as a result of the specific thymine-Hg2+-thymine (T-Hg2+-T) coordination chemistry and can be applied to detect Hg2+ in dairy products. With the use of the electric "signal-on" switch, the electrochemical aptasensor has the advantages of simplicity, ease of operation, and high sensitivity and specificity, offering a promising method to assess the safety of dairy products polluted with Hg2+.
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Affiliation(s)
- Xinai Zhang
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , People's Republic of China
| | - Chenyong Huang
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , People's Republic of China
| | - Yanjuan Jiang
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , People's Republic of China
| | - Yuxiang Jiang
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , People's Republic of China
| | - Jianzhong Shen
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , People's Republic of China
| | - En Han
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , People's Republic of China
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Yu Z, Zhou W, Ma G, Li Y, Fan L, Li X, Lu Y. Insights into the Competition between K+ and Pb2+ Binding to a G-Quadruplex and Discovery of a Novel K+–Pb2+–Quadruplex Intermediate. J Phys Chem B 2018; 122:9382-9388. [DOI: 10.1021/acs.jpcb.8b08161] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ze Yu
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Wei Zhou
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Ge Ma
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Yunchao Li
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Louzhen Fan
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Xiaohong Li
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Yi Lu
- Department of Chemistry, Department of Materials Science and Engineering, University of Illinois at Urbana and Champaign, Urbana, Illinois 61801, United States
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48
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Ahn HJ, Lee JS, Kim HS, Hwang IT, Hong JH, Shin J, Jung CH. Fabrication of large Pt nanoparticles-decorated rGO counter electrode for highly efficient DSSCs. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.04.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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49
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Sensitive and label-free electrochemical lead ion biosensor based on a DNAzyme triggered G-quadruplex/hemin conformation. Biosens Bioelectron 2018; 115:91-96. [DOI: 10.1016/j.bios.2018.04.054] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/25/2018] [Accepted: 04/25/2018] [Indexed: 01/01/2023]
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50
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Tian S, Liang T, Li K, Wang L. Source and path identification of metals pollution in a mining area by PMF and rare earth element patterns in road dust. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 633:958-966. [PMID: 29758917 DOI: 10.1016/j.scitotenv.2018.03.227] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/20/2018] [Accepted: 03/20/2018] [Indexed: 05/09/2023]
Abstract
To better assess pollution and offer efficient protection for local residents, it is necessary to both conduct an exhaustive investigation into pollution levels and quantify its contributing sources and paths. As it is the biggest light rare earth element (REE) reserve in the world, Bayan Obo deposit releases large amounts of heavy metals into the surrounding environment. In this study, road dust from zones located at different distances to the mining area was collected and sieved using seven sizes. This allowed for subsequent analysis of size-dependent influences of mining activities. A receptor model was used to quantitatively assess mine contributions. REE distribution patterns and other REE parameters were compared with those in airborne particulates and the surrounding soil to analyze pollution paths. Results showed that 27 metals were rated as moderately to extremely polluted (2<geo-accumulation index<6) in both mine processing and residential areas. REEs are the most polluted elements, followed by Mo, Cd, Pb, and Ag. Although mining contribution to pollution levels increased with decreasing distance and size, 35% of REEs and 6% of other polluted metals in residential area road dust originated directly from the mine. The provenance index (PI) calculated using the REE parameters confirmed this result. While the REE distribution pattern showed that airborne particulates may not be the path for mining-derived particles, they may be one for other sources.
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Affiliation(s)
- Shuhan Tian
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 10049, China
| | - Tao Liang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 10049, China.
| | - Kexin Li
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 10049, China.
| | - Lingqing Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 10049, China
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