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Gai T, Jiang J, Wang S, Zhang L, Ren Y, Qin Z, Wu Q, Zhang J, Liao J. Highly sensitive and selective determination of uranyl ions based on Ag/Ag 2O-COF composite SERS substrate. Talanta 2024; 277:126407. [PMID: 38878512 DOI: 10.1016/j.talanta.2024.126407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/06/2024] [Accepted: 06/09/2024] [Indexed: 07/19/2024]
Abstract
Uranium is an essential nuclear material in civilian and military areas; however, its extensive application raises concerns about the potential safety issues in the fields of environmental protection and nuclear industry. In this study, we developed an Ag/Ag2O-COF (covalent-organic framework) composite SERS substrate to detect uranyl ions (UO22+) in environmental aqueous solutions. Herein, the strong SERS effect of uranyl adsorbed in Ag/Ag2O composite and the high adsorption efficiency of COF TpPa-1 were combined to realize the trace detection of uranyl ions. This method displayed a linear range of 10-8 mol L-1 to 10-6 mol L-1 with the detection limit of 8.9 × 10-10 mol L-1 for uranyl ions. Furthermore, common metal cations and oxo-ions hardly affected the SERS detection of uranyl, which is helpful for the trace analysis of uranyl in natural water samples. Although the proposed strategy is deployed for uranyl detection, the reusable and high-efficiency system may be expanded to trace detection of other substance with Raman activity.
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Affiliation(s)
- Tao Gai
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Jiaolai Jiang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Shaofei Wang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China.
| | - Ling Zhang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Yiming Ren
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Zhen Qin
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Qian Wu
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Jun Zhang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Junsheng Liao
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China.
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2
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Gai T, Jiang J, Wang S, Ren Y, Yang S, Qin Z, Shao L, Wu Q, Zhang J, Liao J. Photoreduced Ag +/sodium alginate supramolecular hydrogel as a sensitive SERS membrane substrate for rapid detection of uranyl ions. Anal Chim Acta 2024; 1316:342826. [PMID: 38969424 DOI: 10.1016/j.aca.2024.342826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 05/24/2024] [Accepted: 06/04/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND In the fields of environmental monitoring and nuclear emergency, in order to obtain the relevant information of uranyl-induced environmental pollution and nuclear accident, it is necessary to establish a rapid quantitative analytical technique for uranyl ions. As a new promising technique, surface-enhanced Raman scattering (SERS) is hopeful to achieve this goal. However, uranyl ions are easily desorbed from SERS substrates under acidic conditions, and the structures of SERS substrates will be destroyed in the strong acidic aqueous solutions. Besides, the quantitative detection ability of SERS for uranyl ions needs to be promoted. Hence, it is necessary to develop new SERS substrates for accurate quantitative detection of trace uranyl in environmental water samples, especially in acidic solutions. RESULTS In this work, we prepared silver ions/sodium alginate supramolecular hydrogel membrane (Ag+/SA SMH membrane), and the Ag+ ions from the membrane were transformed into Ag/Ag2O complex nanoparticles under laser irradiation. The Raman signal of uranyl was strongly enhanced under the synergistic interaction of electromagnetic enhancement derived from the Ag nanoparticles and charge transfer enhancement between uranyl and Ag2O. Utilizing the peak of SA (550 cm-1) as an internal standard, a quantitative detection with a LOD of 6.7 × 10-9 mol L-1 was achieved due to a good linear relation of uranyl concentrations from 1.0 × 10-8 mol L-1 to 2 × 10-6 mol L-1. Furthermore, foreign metal ions hardly affected the SERS detection of uranyl, and the substrate could determine trace uranyl in natural water samples. Particularly, the acidity had no obvious effect on SERS signals of uranyl ions. Therefore, in addition to the detection of uranyl ions in natural water samples, the proposed strategy could also detect uranyl ions in strong acidic solutions. SIGNIFICANCE AND NOVELTY A simple one-step method was used to prepare an Ag+/SA SMH membrane for rapid quantitative detection of uranyl ions for the first time. The proposed substrate successfully detected uranyl ions under acidic conditions by immobilizing uranyl ion in hydrogel structure. In comparison with the previous studies, a more accurate quantitative analysis for uranyl ions was achieved by using an internal standard, and the proposed strategy could determine trace uranyl in either natural water samples or strong acidic solutions.
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Affiliation(s)
- Tao Gai
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Jiaolai Jiang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Shaofei Wang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China.
| | - Yiming Ren
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Shanli Yang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Zhen Qin
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Lang Shao
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Qian Wu
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Jun Zhang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China
| | - Junsheng Liao
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang, PR China.
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Rani N, Singh P, Kumar S, Kumar P, Bhankar V, Kamra N, Kumar K. Recent advancement in nanomaterials for the detection and removal of uranium: A review. ENVIRONMENTAL RESEARCH 2023; 234:116536. [PMID: 37399984 DOI: 10.1016/j.envres.2023.116536] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 06/15/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023]
Abstract
Uranyl ions U(VI), are the common by-product of nuclear power plants and anthropogenic activities like mining, excess utilization of fertilizers, oil industries, etc. Its intake into the body causes serious health concerns such as liver toxicity, brain damage, DNA damage and reproductive issues. Therefore, there is urgent need to develop the detection and remediation strategies. Nanomaterials (NMs), due to their unique physiochemical properties including very high specific area, tiny sizes, quantum effects, high chemical reactivity and selectivity have become emerging materials for the detection and remediation of these radioactive wastes. Therefore, the current study aims to provide a holistic view and investigation of these new emerging NMs that are effective for the detection and removal of Uranium including metal nanoparticles, carbon-based NMs, nanosized metal oxides, metal sulfides, metal-organic frameworks, cellulose NMs, metal carbides/nitrides, and carbon dots (CDs). Along with this, the production status, and its contamination data in food, water, and soil samples all across the world are also complied in this work.
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Affiliation(s)
- Neeru Rani
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonepat, 131039, Haryana, India
| | - Permender Singh
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonepat, 131039, Haryana, India
| | - Sandeep Kumar
- Department of Chemistry, J. C. Bose University of Science & Technology, YMCA, Faridabad, 126006, Haryana, India.
| | - Parmod Kumar
- Department of Physics, J. C. Bose University of Science & Technology, YMCA, Faridabad, 121006, Haryana, India
| | - Vinita Bhankar
- Department of Biochemistry, Kurukshetra University, Kurukshetra, 136119, Haryana, India
| | - Nisha Kamra
- Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Krishan Kumar
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonepat, 131039, Haryana, India.
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Thompson CC, Lai RY. Threonine Phosphorylation of an Electrochemical Peptide-Based Sensor to Achieve Improved Uranyl Ion Binding Affinity. BIOSENSORS 2022; 12:961. [PMID: 36354470 PMCID: PMC9688285 DOI: 10.3390/bios12110961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 10/25/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
We have successfully designed a uranyl ion (U(VI)-specific peptide and used it in the fabrication of an electrochemical sensor. The 12-amino acid peptide sequence, (n) DKDGDGYIpTAAE (c), originates from calmodulin, a Ca(II)-binding protein, and contains a phosphothreonine that enhances the sequence's affinity for U(VI) over Ca(II). The sensing mechanism of this U(VI) sensor is similar to other electrochemical peptide-based sensors, which relies on the change in the flexibility of the peptide probe upon interacting with the target. The sensor was systematically characterized using alternating current voltammetry (ACV) and cyclic voltammetry. Its limit of detection was 50 nM, which is lower than the United States Environmental Protection Agency maximum contaminant level for uranium. The signal saturation time was ~40 min. In addition, it showed minimal cross-reactivity when tested against nine different metal ions, including Ca(II), Mg(II), Pb(II), Hg(II), Cu(II), Fe(II), Zn(II), Cd(II), and Cr(VI). Its reusability and ability to function in diluted aquifer and drinking water samples were further confirmed and validated. The response of the sensor fabricated with the same peptide sequence but with a nonphosphorylated threonine was also analyzed, substantiating the positive effects of threonine phosphorylation on U(VI) binding. This study places emphasis on strategic utilization of non-standard amino acids in the design of metal ion-chelating peptides, which will further diversify the types of peptide recognition elements available for metal ion sensing applications.
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Guo W, Xu H, Chen C, Cao X, Ma J, Liu Y. Determination of U(VI) by differential pulse stripping voltammetry using a polydopamine/reduced graphene oxide nanocomposite modified glassy carbon electrode. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107111] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Surface-enhanced Raman scattering (SERS), a powerful technique for trace molecular detection, depends on chemical and electromagnetic enhancements. While recent advances in instrumentation and substrate design have expanded the utility, reproducibility, and quantitative capabilities of SERS, some challenges persist. In this review, advances in quantitative SERS detection are discussed as they relate to intermolecular interactions, surface selection rules, and target molecule solubility and accessibility. After a brief introduction to Raman scattering and SERS, impacts of surface selection rules and enhancement mechanisms are discussed as they relate to the observation of activation and deactivation of normal Raman modes in SERS. Next, experimental conditions that can be used to tune molecular affinity to and density near SERS substrates are summarized and considered while tuning these parameters are conveyed. Finally, successful examples of quantitative SERS detection are discussed, and future opportunities are outlined. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 73 is April 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Ryan D Norton
- Department of Chemistry, University of Iowa, Iowa City, Iowa, USA;
| | - Hoa T Phan
- Department of Chemistry, University of Iowa, Iowa City, Iowa, USA;
| | | | - Amanda J Haes
- Department of Chemistry, University of Iowa, Iowa City, Iowa, USA;
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7
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Zheng ZJ, Zhang L, Wang LZ, Zhong ZQ, Xiong YT, Guo J, Zhang ZB, Cao XH, Xiao SJ. Ultrasensitive detection of UO 2 2+ based on dopamine-functionalized MoO x quantum dots. LUMINESCENCE 2021; 37:127-133. [PMID: 34730276 DOI: 10.1002/bio.4153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/17/2021] [Accepted: 10/25/2021] [Indexed: 11/11/2022]
Abstract
Uranium is an important nuclear fuel and the risk of human exposure to uranium increases as increasing amounts of uranium-containing waste enter the environment due to the rapid growth of nuclear power. Therefore, rapid, sensitive, and portable uranium detection is a promising approach to effectively control and monitor uranium contamination. To achieve this goal, abundant oxygen- and nitrogen-containing groups were introduced to molybdenum oxide quantum dot (MoOx QDs) surfaces with dopamine (DA) modification. Due to the excellent coordination ability of oxygen- and nitrogen-containing groups with uranium, the obtained DA-functionalized MoOx QDs (DA-MoOx QDs) showed a strong binding affinity for uranium and sensitivity was increased nearly 1000-fold compared with MoOx QDs alone. The limit of detection was 3.85 nM, which is higher than most of the reported nanomaterials. Moreover, the DA-MoOx QD-based method showed high selectivity and uranium could be clearly detected under masking with ethylenediaminetetraacetic acid even when the concentration of other metal ions was 100-fold higher than that of uranium, showing a very promising method for uranium contamination control and monitoring.
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Affiliation(s)
- Zhi Jian Zheng
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology (ECUT), Nanchang, China.,School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
| | - Li Zhang
- College of Chemistry, Nanchang University, China
| | - Li Zhi Wang
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology (ECUT), Nanchang, China.,School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
| | - Zu Qi Zhong
- School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
| | - Yu Tian Xiong
- School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
| | - Jing Guo
- School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
| | - Zhi Bin Zhang
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology (ECUT), Nanchang, China.,School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
| | - Xiao Hong Cao
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology (ECUT), Nanchang, China.,School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
| | - Sai Jin Xiao
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology (ECUT), Nanchang, China.,School of Chemistry, Biology and Material Science, ECUT, Nanchang, China
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8
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Phan HT, Vinson C, Haes AJ. Gold Nanostar Spatial Distribution Impacts the Surface-Enhanced Raman Scattering Detection of Uranyl on Amidoximated Polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:4891-4899. [PMID: 33861606 PMCID: PMC8213173 DOI: 10.1021/acs.langmuir.1c00132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The plasmonic properties of carboxylated gold nanostars distributed on amidoximated polyacrylonitrile (AO PAN) electrospun polymer films scale with surface-enhanced Raman scattering (SERS) intensities for coordinated uranium(VI) oxide (uranyl) species. This two-step plasmonic sensor first isolates uranyl from solution using functionalized polymers; then carboxylated gold nanostars are subsequently deposited for SERS. Spatially resolved localized surface plasmon resonance (LSPR) and SERS facilitate correlated nanostar optical density and uranyl quantification. To reduce sampling bias, gold nanostars are deposited in an inverted drop-coating geometry and measurements are conducted inside resulting nanoparticle coffee rings that form on the polymer substrates. This approach naturally preserves the plasmonic properties of gold nanostars while reducing the deposition of nanoparticle aggregates in active sensing regions, thereby maximizing both the accuracy and the precision of SERS measurements. Several advances are made. First, second-derivative analysis of LSPR spectra facilitates the quantification of local nanostar density across large regions of the sensor substrate by reducing background variations caused by the polymeric and gold materials. Second, local nanostar densities ranging from 140 to 200 pM·cm are shown to result in uranyl signals that are independent of nanostar concentration. Third, the Gibbs free energy of uranyl adsorption to carboxylated nanostars is estimated at 8.4 ± 0.2 kcal/mol. Finally, a linear dynamic range from ∼0.3 to 3.4 μg U/mg polymer is demonstrated. Signals vary by 10% or less. As such, the uniformity of the plasmonic activity of distributed gold nanostars and the employment of spatially resolved spectroscopic measurements on the composite nanomaterial sensor interface facilitate the quantitative detection of uranyl while also reducing the dependence on user expertise and the selected sampling region. These important advances are critical for the development of a user-friendly SERS-based sensor for uranyl.
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Affiliation(s)
- Hoa T. Phan
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242 United States
| | - Claire Vinson
- Department of Chemistry, Smith College, Northampton, Massachusetts 01063 and Department of Chemistry, University of Iowa, Iowa City, Iowa 52242 United States
| | - Amanda J. Haes
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
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Phan HT, Geng S, Haes AJ. Microporous silica membranes promote plasmonic nanoparticle stability for SERS detection of uranyl. NANOSCALE 2020; 12:23700-23708. [PMID: 33226397 PMCID: PMC7725980 DOI: 10.1039/d0nr06296k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Silica membrane stabilized gold coated silver (Ag@Au) (i.e., internally etched silica coated Ag@Au (IE Ag@Au@SiO2)) nanoparticles promote surface-enhanced Raman scattering (SERS) activity and detection of uranium(vi) oxide (uranyl) under harsh solution phase conditions including at pH 3-7, with ionic strengths up to 150 mM, and temperatures up to 37 °C for at least 10 hours. These materials overcome traditional solution-phase plasmonic nanomaterial limitations including signal variability and/or degradation arising from nanoparticle aggregation, dissolution, and/or surface chemistry changes. Quantitative uranyl detection occurs via coordination to 3-mercaptopropionate (MPA), a result confirmed through changes in correlated SERS intensities for uranyl and COOH/COO- vibrational modes. Quantification is demonstrated down to 110 nM, a concentration below toxic levels. As pH varies from 3 to 7, the plasmonic properties of the nanoparticles are unchanged, and the uranyl signal depends on both the protonation state of MPA as well as uranyl solubility. High ionic strengths (up to 150 mM) and incubation at 37 °C for at least 10 hours do not impact the SERS activity of uranyl even though slight silica dissolution is observed during thermal treatment. All in all, microporous silica membranes effectively protect the nanoparticles against variations in solution conditions thus illustrating robust tunability for uranyl detection using SERS.
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Affiliation(s)
- Hoa T Phan
- Department of Chemistry, University of Iowa, Iowa City, Iowa, USA.
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10
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Amplified electrochemical determination of UO 22+ based on the cleavage of the DNAzyme and DNA-modified gold nanoparticle network structure. Mikrochim Acta 2020; 187:311. [PMID: 32367432 DOI: 10.1007/s00604-020-04263-1] [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: 10/31/2019] [Accepted: 04/03/2020] [Indexed: 12/27/2022]
Abstract
A superior electrochemical biosensor was designed for the determination of UO22+ in aqueous solution by integration of DNAzyme and DNA-modified gold nanoparticle (DNA-AuNP) network structure. Key features of this method include UO22+ inducing the cleavage of the DNAzyme and signal amplification of DNA-AuNP network structure. In this electrochemical method, the DNA-AuNP network structure can be effectively modified on the surface of gold electrode and then employed as an ideal signal amplification unit to generate amplified electrochemical response by inserting a large amount of electrochemically active indicator methylene blue (MB). In the presence of UO22+, the specific sites on DNA-AuNP network structure can be cleaved by UO22+, releasing the DNA-AuNP network structure with detectable reduction of electrochemical response intensity. The electrochemical response intensity is related to the concentration of UO22+. The logarithm of electrochemical response intensity and UO22+ concentration showed a wide linear range of 10~100 pM, and the detection limit reached 8.1 pM (S/N = 3). This method is successfully used for determination of UO22+ in water samples. Graphical abstract Fabricated DNAzyme network structure for enhanced electrical signal. Numerical experiments show that the current signal decreases as the concentration of UO22+ increases. It can be seen that the biosensors could be used to detect UO22+ in aqueous solution effectively.
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Jiang J, Zhao F, Shi S, Du Y, Chen J, Wang S, Xu J, Li C, Liao J. In Situ Surface-Enhanced Raman Spectroscopy Detection of Uranyl Ions with Silver Nanorod-Decorated Tape. ACS OMEGA 2019; 4:12319-12324. [PMID: 31460349 PMCID: PMC6682048 DOI: 10.1021/acsomega.9b01574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/05/2019] [Indexed: 05/25/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) has been utilized for rapid analysis of uranyl ions (UO2 2+) on account of its fast response and high sensitivity. However, the difficulty of fabricating a suitable SERS substrate for in situ analysis of uranyl ions severely restricts its practical application. Hence, we proposed flexible and adhesive SERS tape decorated with silver nanorod (AgNR) arrays for in situ detection of UO2 2+. The SERS tape was fabricated through a simple "paste & peel off" procedure by transferring the slanted AgNR arrays from silicon to the transparent tape surface. UO2 2+ can be easily in situ detected by placing the AgNR SERS tape into an aqueous solution or pasting it onto the solid matrix surface due to the excellent transparent feature of the tape. The proposed SERS tape with well-distributed AgNRs effectively improved the reproducibility and sensitivity for UO2 2+ analysis. UO2 2+ with concentration as low as 100 nM was easily detected. Besides, UO2 2+ adsorbed on an iron disc and rock surface also can be rapidly in situ detected. With its simplicity and convenience, the AgNR SERS tape-based SERS technique offers a promising approach for environmental monitoring and nuclear accident emergency detection.
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Affiliation(s)
- Jiaolai Jiang
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
| | - Fengtong Zhao
- Key
Laboratory of Advanced Materials (MOE), School of Materials Science
and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Siwei Shi
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
| | - Yunfeng Du
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
| | - Jun Chen
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
| | - Shaofei Wang
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
| | - Jingsong Xu
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
| | - Changmao Li
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
| | - Junsheng Liao
- Institute
of Materials, China Academy of Engineering
Physics, P. O. Box No.9-11, Mianyang, Sichuan 621907, P. R. China
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