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Liu W, Wang Y, Sheng F, Wan B, Tang G, Xu S. A nucleic acid dye-enhanced electrochemical biosensor for the label-free detection of Hg 2+ based on a gold nanoparticle-modified disposable screen-printed electrode. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3451-3457. [PMID: 36000503 DOI: 10.1039/d2ay00548d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this paper, a nucleic acid dye-enhanced electrochemical biosensor based on a screen-printed carbon electrode (SPCE) modified with Au nanoparticles (AuNPs) was designed for the detection of Hg2+ in water. AuNPs were modified on the surface of the disposable SPCE through the electrodeposition of HAuCl4. Subsequently, thiolated DNA probes were immobilized on the AuNP-modified electrode surface by Au-S reaction. After Hg2+ was bound with a DNA probe by thymine (T)-Hg2+-thymine (T) mismatch, the DNA probe was folded into a hairpin structure where positively charged GelRed molecules were embedded into the double-stranded part of the hairpin. Thus, the current of [Fe(CN)6]3-/4- increased significantly on account of the decreased electrostatic repulsion at the electrode surface. Under the optimized experimental conditions, the peak current of [Fe(CN)6]3-/4- exhibited a good linear relationship with lgCHg2+ in the concentration of Hg2+ linear range of 0.1 nM to 500 nM, and the limit of detection (S/N = 3) was calculated as 0.04 nM. The electrochemical sensor also exhibited excellent selectivity for Hg2+ in the presence of nine interfering ions, including Na+, Fe3+, Ni2+, Mg2+, Co2+, Pb2+, K+, Al3+ and Cu2+. Meanwhile, the developed electrochemical sensor was tested in the analysis of Hg2+ in tap water and river water samples, and the recoveries ranged from 81.0 to 114%. Therefore, this nucleic acid dye-enhanced electrochemical biosensor provided the advantages of simplicity, sensitivity, and specificity and is expected to be an alternative for Hg2+ detection in actual environmental samples.
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Affiliation(s)
- Wei Liu
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Yunqi Wang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Fangfang Sheng
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Bing Wan
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Gangxu Tang
- College of Material and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
| | - Shuxia Xu
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, P. R. China
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, P. R. China
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Yeo KI, Park I, Lee SH, Lee SY, Chang WJ, Bashir R, Choi S, Lee SW. Ultra-sensitive dielectrophoretic surface charge multiplex detection inside a micro-dielectrophoretic device. Biosens Bioelectron 2022; 210:114235. [PMID: 35483112 DOI: 10.1016/j.bios.2022.114235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 12/23/2022]
Abstract
Label-free dielectrophoretic force-based surface charge detection has shown great potential for highly sensitive and selective sensing of metal ions and small biomolecules. However, this method suffers from a complex calibration process and measurement signal interference in simultaneous multi-analyte detection, thus creating difficulties in multiplex detection. We have developed a method to overcome these issues based on the optical discrimination of the dielectrophoretic behaviors of multiple microparticle probes considering the surface charge difference before and after self-assembling conjugation. In this report, we demonstrate and characterize this dielectrophoretic force-based surface charge detection method with particle probes functionalized by various biomolecules. This technique achieved an attomolar limit of detection (LOD) for Hg2+ in distilled water and a femtomolar LOD in drinking water using DNA aptamer-functionalized particle probes. More importantly, using two different DNA aptamer-functionalized particle probes for Hg2+ and Ag+, label-free dielectrophoretic multiplex detection of these species in drinking water with a femtomolar and a nanomolar LOD was achieved for the first time.
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Affiliation(s)
- Kang In Yeo
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, Republic of Korea
| | - Insu Park
- Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Sang Hyun Lee
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, Republic of Korea
| | - Sei Young Lee
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, Republic of Korea
| | - Woo-Jin Chang
- Mechanical Engineering Department, University of Wisconsin-Milwaukee, Milwaukee, WI, 53211, USA
| | - Rashid Bashir
- Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Seungyeop Choi
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, Republic of Korea.
| | - Sang Woo Lee
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, Republic of Korea.
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Ran Q, Sheng F, Chang G, Zhong M, Xu S. Sulfur-doped reduced graphene oxide@chitosan composite for the selective and sensitive electrochemical detection of Hg2+ in fish muscle. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107138] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Al-Onazi WA, Abdel-Lateef MA. Catalytic oxidation of O-phenylenediamine by silver nanoparticles for resonance Rayleigh scattering detection of mercury (II) in water samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 264:120258. [PMID: 34384994 DOI: 10.1016/j.saa.2021.120258] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
In this study, a facile nanoparticle catalytic sensor for resonance Rayleigh scattering quantification of mercury (II) ion was developed. The developed approach is relied on the selective inhibition of the peroxidase-like activity of polyvinylpyrrolidone-stabilized silver nanoparticles (PVP-Ag-NPs) by mercury (II) ions. The synthesized PVP-Ag-NPs oxidize the aqueous solution of O-Phenylenediamine (colorless) to 2,3-phenazinediamine (bright yellow) and their resonance Rayleigh scattering (RRS) activity was completely suppressed. When mercury (II) was introduced, the RRS activity of PVP-Ag-NPs was turned on combined with a reduction of the intensity of the yellow color. The enhancement in the RRS intensity was related to the concentration of mercury (II) in the linear range of 10-2000 nM. The smaller size (4.5 nm), the large surface area and the uniform size (PDI = 0.379) of the synthesized PVP-Ag-NPs offered a higher chance for interaction between mercury (II) and PVP-Ag-NPs with the advantages of high sensitivity (LOD = 4 nM) and excellent selectivity for mercury (II) detection over several metals and anions.
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Affiliation(s)
- Wedad A Al-Onazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mohamed A Abdel-Lateef
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt.
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DNAzyme-Amplified Electrochemical Biosensor Coupled with pH Meter for Ca 2+ Determination at Variable pH Environments. NANOMATERIALS 2021; 12:nano12010004. [PMID: 35009954 PMCID: PMC8746961 DOI: 10.3390/nano12010004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/08/2021] [Accepted: 12/14/2021] [Indexed: 02/07/2023]
Abstract
For more than 50% of multiparous cows, it is difficult to adapt to the sudden increase in calcium demand for milk production, which is highly likely to cause hypocalcemia. An electrochemical biosensor is a portable and efficient method to sense Ca2+ concentrations, but biomaterial is easily affected by the pH of the analyte solution. Here, an electrochemical biosensor was fabricated using a glassy carbon electrode (GCE) and single-walled carbon nanotube (SWNT), which amplified the impedance signal by changing the structure and length of the DNAzyme. Aiming at the interference of the pH, the electrochemical biosensor (GCE/SWNT/DNAzyme) was coupled with a pH meter to form an electrochemical device. It was used to collect data at different Ca2+ concentrations and pH values, and then was processed using different mathematical models, of which GPR showed higher detecting accuracy. After optimizing the detecting parameters, the electrochemical device could determine the Ca2+ concentration ranging from 5 μM to 25 mM, with a detection limit of 4.2 μM at pH values ranging from 4.0 to 7.5. Finally, the electrochemical device was used to determine the Ca2+ concentrations in different blood and milk samples, which can overcome the influence of the pH.
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Development of a DNAzyme-based colorimetric biosensor assay for dual detection of Cd 2+ and Hg 2. Anal Bioanal Chem 2021; 413:7081-7091. [PMID: 34585255 DOI: 10.1007/s00216-021-03677-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 10/20/2022]
Abstract
A colorimetric biosensor assay has been developed for Cd2+ and Hg2+ detection based on Cd2+-dependent DNAzyme cleavage and Hg2+-binding-induced conformational switching of the G-quadruplex fragment. Two types of multifunctional magnetic beads (Cd-MBs and Hg-MBs) were synthesized by immobilizing two functionalized DNA sequences on magnetic beads via avidin-biotin chemistry. For Cd2+ detection, Cd-MBs are used as recognition probes, which are modified with a single phosphorothioate ribonucleobase (rA) substrate (PS substrate) and a Cd2+-specific DNAzyme (Cdzyme). In the presence of Cd2+, the PS substrate is cleaved by Cdzyme, and single-stranded DNA is released as the signal transduction sequence. After molecular assembly with the other two oligonucleotides, duplex DNA is produced, and it can be recognized and cleaved by FokI endonuclease. Thus, a signal output component consisting of a G-quadruplex fragment is released, which catalyzes the oxidation of ABTS with the addition of hemin and H2O2, inducing a remarkably amplified colorimetric signal. To rule out false-positive results and reduce interference signals, Hg-MBs modified with poly-T fragments were used as Hg2+ accumulation probes during the course of Cd2+ detection. On the other hand, Hg-MBs can perform their second function in Hg2+ detection by changing the catalytic activity of the G-quadruplex/hemin DNAzyme. In the presence of Hg2+, the G-quadruplex structure in Hg-MBs is disrupted upon Hg2+ binding. In the absence of Hg2+, an intensified color change can be observed by the naked eye for the formation of intact G-quadruplex/hemin DNAzymes. The biosensor assay exhibits excellent selectivity and high sensitivity. The detection limits for Cd2+ and Hg2+ are 1.9 nM and 19.5 nM, respectively. Moreover, the constructed sensors were used to detect environmental water samples, and the results indicate that the detection system is reliable and could be further used in environmental monitoring. The design strategy reported in this study could broadly extend the application of metal ion-specific DNAzyme-based biosensors.
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Meng Q, Wei S, Xu Z, Cao Q, Xiao Y, Liu N, Liu H, Han G, Zhang J, Yan J, Palov AP, Wu L. Hafnium oxide layer-enhanced single-walled carbon nanotube field-effect transistor-based sensing platform. Anal Chim Acta 2021; 1147:99-107. [PMID: 33485588 DOI: 10.1016/j.aca.2020.12.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/26/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
Single-walled carbon nanotube-based field effect transistors (SWCNT-FETs) are ideal candidates for fabricating sensors and have been widely used for chemical sensing applications. SWCNT-FETs have low selectivity because of the environmentally sensitive electronic properties of SWCNTs, and SWCNT-FETs also show a high noise signal and poor sensitivity because of charge trapping from Si-OH hydration of the SiO2/Si substrate on the SWCNTs. Herein, poly (4-vinylpyridine) (P4VP) was used for noncovalent attachment to SWCNTs and selective binding to copper ions (Cu2+). Importantly, the introduction of a hafnium-oxide (HfO2) layer through atomic layer deposition (ALD) overcame the charge trapping by SiO2 hydration and remarkably decreased the interference signal. The sensitivity of the P4VP/SWCNT/HfO2-FET sensor for Cu2+ was 7.9 μA μM-1, which was approximately 100 times higher than that of the P4VP/SWCNT/SiO2-FET sensor, and its limit of detection (LOD) was as low as 33 pmol L-1. Thus, the P4VP/SWCNT/HfO2-FET sensor is a promising candidate for the development of Cu2+-selective sensors and can be designed for the large-scale manufacturing of custom-made sensors in the future.
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Affiliation(s)
- QingYi Meng
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Shuhua Wei
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Zhiyuan Xu
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Qiang Cao
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China; Shanghai Ocean University, Shanghai, 201306, China
| | - Yushi Xiao
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China; Shanghai Ocean University, Shanghai, 201306, China
| | - Na Liu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China; Shanghai Ocean University, Shanghai, 201306, China
| | - Huan Liu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China
| | - Gang Han
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China
| | - Jing Zhang
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Jiang Yan
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Alexander P Palov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Lidong Wu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China.
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Salek Maghsoudi A, Hassani S, Mirnia K, Abdollahi M. Recent Advances in Nanotechnology-Based Biosensors Development for Detection of Arsenic, Lead, Mercury, and Cadmium. Int J Nanomedicine 2021; 16:803-832. [PMID: 33568907 PMCID: PMC7870343 DOI: 10.2147/ijn.s294417] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 01/14/2021] [Indexed: 12/11/2022] Open
Abstract
Heavy metals cause considerable environmental pollution due to their extent and non-degradability in the environment. Analysis and trace levels of arsenic, lead, mercury, and cadmium as the most toxic heavy metals show that they can cause various hazards in humans' health. To achieve rapid, high-sensitivity methods for analyzing ultra-trace amounts of heavy metals in different environmental and biological samples, novel biosensors have been designed with the participation of strategies applied in nanotechnology. This review attempted to investigate the novel, sensitive, efficient, cost-benefit, point of care, and user-friendly biosensors designed to detect these heavy metals based on functional mechanisms. The study's search strategies included examining the primary databases from 2015 onwards and various keywords focusing on heavy metal biosensors' performance and toxicity mechanisms. The use of aptamers and whole cells as two important bio-functional nanomaterials is remarkable in heavy metal diagnostic biosensors' bioreceptor design. The application of hybridized nanomaterials containing a specific physicochemical function in the presence of a suitable transducer can improve the sensing performance to achieve an integrated detection system. Our study showed that in addition to both labeled and label-free detection strategies, a wide range of nanoparticles and nanocomposites were used to modify the biosensor surface platform in the detection of heavy metals. The detection limit and linear dynamic range as an essential characteristic of superior biosensors for the primary toxic metals are studied. Furthermore, the perspectives and challenges facing the design of heavy metal biosensors are outlined. The development of novel biosensors and the application of nanotechnology, especially in real samples, face challenges such as the capability to simultaneously detect multiple heavy metals, the interference process in complex matrices, the efficiency and stability of nanomaterials implemented in various laboratory conditions.
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Affiliation(s)
- Armin Salek Maghsoudi
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Shokoufeh Hassani
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Kayvan Mirnia
- Department of Neonatology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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9
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Deng Z, Jin W, Yin Q, Huang J, Huang Z, Fu H, Yuan Y, Zou J, Nie J, Zhang Y. Ultrasensitive visual detection of Hg2+ ions via the Tyndall effect of gold nanoparticles. Chem Commun (Camb) 2021; 57:2613-2616. [DOI: 10.1039/d0cc08003a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This work describes a new nanosensor for one-step ultrasensitive naked-eye detection of Hg2+ ions based on the target-triggered aggregation of gold nanoparticles showing a dramatically enhanced Tyndall effect.
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10
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Wang H, Luo Q, Zhao Y, Nan X, Zhang F, Wang Y, Wang Y, Hua D, Zheng S, Jiang L, Yang L, Xiong B. Electrochemical device based on nonspecific DNAzyme for the high-accuracy determination of Ca 2+ with Pb 2+ interference. Bioelectrochemistry 2020; 140:107732. [PMID: 33465700 DOI: 10.1016/j.bioelechem.2020.107732] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/17/2020] [Accepted: 12/19/2020] [Indexed: 12/13/2022]
Abstract
Calcium is one of the most abundant and indispensable elements in biology, as it is a vital component of nerves, bones, and muscles and maintains the excitability of normal neuromuscular muscles. However, it may be harmful to the human body and even damage the organs if the calcium content exceeds the standard value by several times. To evaluate the level of calcium ions (Ca2+), an electrochemical biosensor (FET/SWNTs/Cazyme) was developed using a nonspecific DNAzyme with high stability, which combined the unique advantage of field-effect transistors and single-walled carbon nanotubes, while being easy-to-use and having excellent sensitivity. The incubation time and voltage after optimization were 15 min and +0.02 V. The nonspecific DNAzyme-based biosensor was sensitive to Ca2+, but it was also interfered with by Pb2+, which affected the detection accuracy. To solve this shortcoming, an electrochemical device was proposed, in which FET/SWNTs/Cazyme combined with other specific biosensors for Pb2+, and then established some data processing models were established through support vector machine regression (SVMR) and artificial neural network fitting (ANNF). For the optimal SVMR, the electrochemical device can determine the Ca2+ concentration in the range of 7.5-1000 μM with a detection limit of 5.48 μM. Finally, the prepared electrochemical device was employed to detect the Ca2+ in different milk and water samples.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Qingyao Luo
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Yiguang Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xuemei Nan
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Fan Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Yaping Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Yue Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; College of Animal Science and Technology, Northwest A&F University, Yangling 712100, PR China
| | - Dengke Hua
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Shanshan Zheng
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Linshu Jiang
- School of Animal Science and Technology, Beijing Agricultural University, Beijing Key Laboratory of Dairy Nutrition, Beijing 102206, PR China
| | - Liang Yang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - Benhai Xiong
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
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11
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Zhang W, Li K, Guo J, Ma T, Wang D, Shi S, Gopinath SCB, Gu D. Sensitive identification of prostate-specific antigen by iron oxide nanoparticle antibody conjugates on the gap-finger electrode surface. Biotechnol Appl Biochem 2020; 68:896-901. [PMID: 32822079 DOI: 10.1002/bab.2012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 08/07/2020] [Indexed: 12/14/2022]
Abstract
Researches have proved that increasing level of prostate-specific antigen (PSA) is an indicator for the progression of prostate cancer. The present study was focused to determine the PSA level by using anti-PSA antibody conjugated iron oxide nanoparticles, as the probe immobilized on the gap-fingered electrode sensing surface. The detection limit and sensitivity were found at the level of 1.9 pg/mL on the linear regression curve (y = 1.6939x - 0.5671; R² = 0.9878). A dose-dependent liner range was found from 1.9 until 60 pg/mL. Further, PSA was spiked in human serum and did not affect the interaction of PSA and its antibody. This method of detection quantifies the level of PSA, which helps to diagnose prostate cancer at its earlier stage.
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Affiliation(s)
- Wei Zhang
- Department of Urology, Affiliated Hospital of Hebei University, Baoding, Hebei, China
| | - Kai Li
- Department of Urology, Affiliated Hospital of Hebei University, Baoding, Hebei, China
| | - Jingyang Guo
- Department of Urology, Affiliated Hospital of Hebei University, Baoding, Hebei, China
| | - Tao Ma
- Department of Urology, Affiliated Hospital of Hebei University, Baoding, Hebei, China
| | - Dongqing Wang
- Department of Urology, Affiliated Hospital of Hebei University, Baoding, Hebei, China
| | - Sumei Shi
- Department of Urology, Affiliated Hospital of Hebei University, Baoding, Hebei, China
| | - Subash C B Gopinath
- School of Bioprocess Engineering, Universiti Malaysia Perlis, Arau, Perlis, 02600, Malaysia.,Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis, 01000, Malaysia
| | - Deqiang Gu
- Department of Urology, Affiliated Hospital of Hebei University, Baoding, Hebei, China
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12
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Jin S, Wu C, Ying Y, Ye Z. Magnetically separable and recyclable bamboo-like carbon nanotube-based FRET assay for sensitive and selective detection of Hg 2. Anal Bioanal Chem 2020; 412:3779-3786. [PMID: 32313997 DOI: 10.1007/s00216-020-02631-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/22/2020] [Accepted: 03/31/2020] [Indexed: 12/12/2022]
Abstract
The global occurrence of toxic hazards in aquatic ecosystems has aroused concern about the potential impacts on the ecological environment and human health in recent decades. Mercury(II) ions that originate from widespread sources including the mining industry, fossil fuel consumption, and industrial wastes are now well known as a highly toxic pollutant. Despite various detection methods which have been reported to sense Hg2+, it still poses a great challenge for us to develop a new effective sensing platform to replenish current fluorescent detection techniques. Here, we report a novel fluorescent biosensor using bamboo-like magnetic carbon nanotubes (BMCNTs) and FAM-labeled T-rich ssDNA for efficient detection of Hg2+ in aqueous solution. The proposed biosensor shows a good response toward Hg2+ detection over a linear response range of 0.05~1 μM (R2 = 0.98) with a detection limit of 20 nM. It also exhibits the capability to discriminate Hg2+ ions with negligible response to other metal ions, such as Ca2+, Cd2+, Cu2+, Mg2+, Mn2+, Ni2+, Pb2+, and Zn2+. Interestingly, the BMCNTs could be separated and recycled easily by using an external magnet, which means a much more cost-effective, easy-to-operate, and eco-friendly method for Hg2+ ion detection.
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Affiliation(s)
- Shunru Jin
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Cui Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Yibin Ying
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China.,Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Zunzhong Ye
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
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13
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Liu Y, Cai Z, Sheng L, Ma M, Wang X. A magnetic relaxation switching and visual dual-mode sensor for selective detection of Hg 2+ based on aptamers modified Au@Fe 3O 4 nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:121728. [PMID: 31784124 DOI: 10.1016/j.jhazmat.2019.121728] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/06/2019] [Accepted: 11/19/2019] [Indexed: 06/10/2023]
Abstract
The solvated mercuric ion (Hg2+) from industrial pollutants are highly toxic to the ecological environment and human health. Driven by urgent need for the selective and sensitive detection of Hg2+, a magnetic relaxation switching (MRS) based on Fe3O4 nanoparticles (NPs) was designed. Practically, the concentrations of Hg2+ in industrial pollutant is usually much higher than the detection range. Thus, gold nanoparticles (AuNPs) were synthesized on the surface of Fe3O4 NPs to enable the visual detection of Au@Fe3O4 NPs. The presence of Hg2+ in sample can specifically cause the aggregation of Au@Fe3O4-aptamers NPs through T-Hg2+-T base pairs, leading to the change in transverse relaxation time T2 value of detection solution. The MRS sensor showed excellent response for Hg2+ ions in the range of 10 nM-100 nM and 100 nM to 5 μM. A highly sensitive and selective measurement of Hg2+ was obtained with a limit of detection of 2.7 nM. Noticeably, the visual detection can qualitatively analyze the Hg2+ beyond 5 μM by naked eye without advanced instrumentation and skilled operators.
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Affiliation(s)
- Yuanyuan Liu
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Zhaoxia Cai
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Long Sheng
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Meihu Ma
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
| | - Xiaoyun Wang
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
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Xing Y, Zhu Q, Zhou X, Qi P. A gold nanoparticle-based colorimetric mercury(II) biosensor using a DNA probe with phosphorothioate RNA modification and exonuclease III-assisted signal amplification. Mikrochim Acta 2020; 187:214. [PMID: 32162015 DOI: 10.1007/s00604-020-4184-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 02/24/2020] [Indexed: 12/12/2022]
Abstract
Herein, we report a rapid and sensitive colorimetric detection of Hg2+ by designing a specific DNA probe with phosphorothioate RNA modification (PS-probe) for Hg2+ recognition and utilizing DNA-modified gold nanoparticles (DNA-AuNPs) as the transducer. The distance between two DNA-AuNPs is controlled by a linker DNA, providing the linker DNA-regulated aggregation or dispersion status of AuNPs in solution. Exonuclease III (Exo III) can trigger the recycled digestion of linker DNA strands, inhibiting the reformation of aggregated nanoparticles and hence leading to a color shift from purple to red. However, the Hg2+-induced cleavage of the PS-probe can efficiently prevent the digestion of linker DNA strands by Exo III and hence reassemble the modified AuNPs to form aggregates in purple color. Thus, a positive correlation between the linker DNA strands left and the addition of Hg2+ provides a quantitative basis for Hg2+ sensing. A linear range of A520/A700 versus Hg2+ concentration is achieved in the range 2-100 nM associated with a detection limit as low as 1.30 ± 0.04 nM. Moreover, the biosensor exhibits excellent selectivity for Hg2+. The strong selectivity behavior was confirmed by recoveries ranging from 96 to 114% in real water samples. Graphical abstractSchematic representation of sensing mechanism of Hg2+ using a DNA probe with phosphorothioate RNA modification (PS-probe) and Exo III-assisted signal amplification.
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Affiliation(s)
- Yunpeng Xing
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing, 100084, China.,State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.,National Engineering Laboratory for advanced technology and equipment of water environment pollution monitoring, Changsha, 410205, China
| | - Qian Zhu
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Xiaohong Zhou
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing, 100084, China. .,National Engineering Laboratory for advanced technology and equipment of water environment pollution monitoring, Changsha, 410205, China.
| | - Peishi Qi
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
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15
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Electrochemical impedance biosensor array based on DNAzyme-functionalized single-walled carbon nanotubes using Gaussian process regression for Cu(II) and Hg(II) determination. Mikrochim Acta 2020; 187:207. [DOI: 10.1007/s00604-020-4202-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/28/2020] [Indexed: 12/12/2022]
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16
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Wang H, Wang Y, Hou X, Xiong B. Bioelectronic Nose Based on Single-Stranded DNA and Single-Walled Carbon Nanotube to Identify a Major Plant Volatile Organic Compound (p-Ethylphenol) Released by Phytophthora Cactorum Infected Strawberries. NANOMATERIALS 2020; 10:nano10030479. [PMID: 32155991 PMCID: PMC7153259 DOI: 10.3390/nano10030479] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/24/2020] [Accepted: 03/03/2020] [Indexed: 12/20/2022]
Abstract
The metabolic activity in plants or fruits is associated with volatile organic compounds (VOCs), which can help identify the different diseases. P-ethylphenol has been demonstrated as one of the most important VOCs released by the Phytophthora cactorum (P. cactorum) infected strawberries. In this study, a bioelectronic nose based on a gas biosensor array and signal processing model was developed for the noninvasive diagnostics of the P. cactorum infected strawberries, which could overcome the limitations of the traditional spectral analysis methods. The gas biosensor array was fabricated using the single-wall carbon nanotubes (SWNTs) immobilized on the surface of field-effect transistor, and then non-covalently functionalized with different single-strand DNAs (ssDNA) through π–π interaction. The characteristics of ssDNA-SWNTs were investigated using scanning electron microscope, atomic force microscopy, Raman, UV spectroscopy, and electrical measurements, indicating that ssDNA-SWNTs revealed excellent stability and repeatability. By comparing the responses of different ssDNA-SWNTs, the sensitivity to P-ethylphenol was significantly higher for the s6DNA-SWNTs than other ssDNA-SWNTs, in which the limit of detection reached 0.13% saturated vapor of P-ethylphenol. However, s6DNA-SWNTs can still be interfered with by other VOCs emitted by the strawberries in the view of poor selectivity. The bioelectronic nose took advantage of the different sensitivities of different gas biosensors to different VOCs. To improve measure precision, all ssDNA-SWNTs as a gas biosensor array were applied to monitor the different VOCs released by the strawberries, and the detecting data were processed by neural network fitting (NNF) and Gaussian process regression (GPR) with high accuracy.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
- Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China;
- Correspondence: or (H.W.); (B.X.); Tel.: +86-010-62811680 (B.X.)
| | - Yue Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Xiaopeng Hou
- Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China;
| | - Benhai Xiong
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
- Correspondence: or (H.W.); (B.X.); Tel.: +86-010-62811680 (B.X.)
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Cai Z, Zhu R, Pang S, Tian F, Zhang C. One‐step Green Synthetic Approach for the Preparation of Orange Light Emitting Copper Nanoclusters for Sensitive Detection of Mercury(II) Ions. ChemistrySelect 2020. [DOI: 10.1002/slct.201904013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Zhifeng Cai
- Department of ChemistryTaiyuan Normal University Jinzhong 030619 P. R. China
| | - Ruitao Zhu
- Department of ChemistryTaiyuan Normal University Jinzhong 030619 P. R. China
| | - Shulin Pang
- Department of ChemistryTaiyuan Normal University Jinzhong 030619 P. R. China
| | - Fang Tian
- Department of ChemistryTaiyuan Normal University Jinzhong 030619 P. R. China
| | - Caifeng Zhang
- Department of ChemistryTaiyuan Normal University Jinzhong 030619 P. R. China
- Humic Acid Engineering and Technology Research Center of Shanxi Province Jinzhong 030619 P. R. China
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18
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Wang B, Luo Y, Liu B, Duan G. Field-Effect Transistor Based on an in Situ Grown Metal-Organic Framework Film as a Liquid-Gated Sensing Device. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35935-35940. [PMID: 31502434 DOI: 10.1021/acsami.9b14319] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ni3(HITP)2, a novel and promising two-dimensional metal-organic framework (MOF) material, has been utilized in the areas of catalysis, sensing, and supercapacitors. It is very suitable for preparing field-effect transistor (FET) devices due to its good conductivity, porous structure, as well as easy film formation. Nevertheless, there is a challenge to transfer membrane materials undamaged to the substrates. Here, we reported a simple approach to fabricate the Ni-MOF-based FET with an in situ grown Ni3(HITP)2 membrane as the channel material of the FET. With this method, we obtained a large-area, dense, and uniform film composed of thin sheets, and the thickness and density of the MOF film were tunable through changing the reaction time. The as-prepared Ni-MOF-FET had a good mobility of 45.4 cm2 V-1 s-1 and on/off current ratio of 2.29 × 103. Moreover, this FET served as a liquid-gated device for the first time with bipolar behavior and good response to the gluconic acid at the range from 10-6 to 10-3 g/mL, verifying the potential of the Ni-MOF-FET as biosensors.
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Affiliation(s)
- Bingfang Wang
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics , Chinese Academy of Sciences , Hefei 230031 , China
- University of Science and Technology of China , Hefei 230026 , China
| | - Yuanyuan Luo
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics , Chinese Academy of Sciences , Hefei 230031 , China
- University of Science and Technology of China , Hefei 230026 , China
| | - Bo Liu
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan 430074 , China
| | - Guotao Duan
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan 430074 , China
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19
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Single‐gap Microelectrode Functionalized with Single‐walled Carbon Nanotubes and Pbzyme for the Determination of Pb
2+. ELECTROANAL 2019. [DOI: 10.1002/elan.201900016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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20
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Liu T, Chu Z, Jin W. Electrochemical mercury biosensors based on advanced nanomaterials. J Mater Chem B 2019. [DOI: 10.1039/c9tb00418a] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review presents an overview of the synthesis strategies and electrochemical performance of recently developed nanomaterials for the Hg2+ assay.
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Affiliation(s)
- Tao Liu
- State Key Laboratory of Material-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Zhenyu Chu
- State Key Laboratory of Material-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Wanqin Jin
- State Key Laboratory of Material-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
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21
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Liu H, Gao X, Zhuang X, Tian C, Wang Z, Li Y, Rogach AL. A specific electrochemiluminescence sensor for selective and ultra-sensitive mercury(ii) detection based on dithiothreitol functionalized copper nanocluster/carbon nitride nanocomposites. Analyst 2019; 144:4425-4431. [DOI: 10.1039/c9an00667b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel electrochemiluminescence sensor based on the combination of copper nanoclusters and carbon nitride nanosheets was fabricated for detecting Hg2+.
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Affiliation(s)
- Huitao Liu
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Xueqing Gao
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Xuming Zhuang
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
- Department of Materials Science and Engineering
| | - Chunyuan Tian
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Zhenguang Wang
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- China
| | - Yanxiu Li
- Department of Materials Science and Engineering
- and Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Kowloon
- Hong Kong SAR
| | - Andrey L. Rogach
- Department of Materials Science and Engineering
- and Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Kowloon
- Hong Kong SAR
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22
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Ultrasensitive impedimetric mercury(II) sensor based on thymine-Hg(II)-thymine interaction and subsequent disintegration of multiple sandwich-structured DNA chains. Mikrochim Acta 2018; 185:555. [PMID: 30465290 DOI: 10.1007/s00604-018-3097-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 11/15/2018] [Indexed: 02/07/2023]
Abstract
An impedimetric method is described for ultrasensitive analysis of mercury(II). It is based on thymine-Hg(II)-thymine interaction which causes the disintegration of multiple-sandwich structured DNA chains. DNA strands were selected that are partially complementary to the T-rich Hg(II)-specific oligonucleotides (MSO). They were immobilized on a gold electrode via Au-S interaction. Next, the MSO and the bridging strands (BS) that can connect adjacent MSOs were alternately attached through layer-by-layer hybridization. Thus, a multiple-sandwich structured interface in created that carries numerous MSOs. This leads to a change-transfer resistance (Rct) values of the electrode-electrolyte interface at faradic electrochemical impedance spectroscopy measurements in the presence of the hexacyanoferrate(II)/(III) redox probe at 0.2 V (vs. Ag/AgCl). If Hg(II) is added to the solution, the MSOs selectively interact with Hg(II) to produce T-Hg(II)-T structures. Hence, the multiple-sandwich hybridization chains become disintegrated, and this causes a decrease in resistivity. The effect can be used to quantify Hg(II) over an analytical range that extends over four orders of magnitude (1 fM to 10 pM), and it has a 0.16 fM limit of detection under optimal conditions. Graphical abstract An electrochemical sensor for femtomolar level detection of Hg2+ is realized on the basis of thymine-Hg2+-thymine interaction which causes disintegration of multiple sandwich DNA hybridization strands.
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