1
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Li J, Qi Y, Yang R, Chen X, Chen Z, Zhu JJ. Intellectualized Visualization of Single-Particle Raman Spectra for Sensitive Detection and Simultaneous Multianalysis of Heavy Metal Ions. Anal Chem 2023; 95:14736-14745. [PMID: 37737121 DOI: 10.1021/acs.analchem.3c02851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Easy-to-use, reliable, and real-time methods for detecting heavy metal ion contamination are urgently required, which is a primary concern for water pollution control and human health. However, present methods for this aim are still unable to achieve simultaneous multianalysis for complex real sample detection. Herein, an intellectualized vision-based single-nanoparticle Raman imaging strategy combined with ion-responsive functional nucleic acids (FNAs) was proposed to address these issues. We reported a correspondence between the concentration of the analytes and the density of particles (DOP) of specifically captured nanoparticles to achieve sensitive detection and simultaneous multianalysis of heavy metal ions. The specific detection of Pb2+ (Hg2+) was obtained with a detection linear range from 100 pM to 100 nM (from 500 fM to 100 nM) and limit of detections low to 1 pM (100 fM), with the advantages of good specificity, excellent homogeneity, and reproducibility. Furthermore, the differentiation of different heavy metal ions (Pb2+/Hg2+) was achieved, i.e., the simultaneous multianalysis, based on Raman imaging of the single particle and intelligent machine vision method. Finally, the Raman imaging assay was utilized for real sample analysis, and it provided a powerful and reliable tool for detecting trace Pb2+/Hg2+ in real water samples and facilitated the portable on-site monitoring of heavy metal ions.
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Affiliation(s)
- Jinxiang Li
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yongbing Qi
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Ruixin Yang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Xueqin Chen
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Zixuan Chen
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Jun-Jie Zhu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
- Shenzhen Research Institute of Nanjing University, Shenzhen 518000, People's Republic of China
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2
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Singh D, Tomar S, Singh S, Chaudhary G, Singh AP, Gupta R. A fluorescent pH switch probe for the ‘turn-on’ dual-channel discriminative detection of magnesium and zinc ions. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114334] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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3
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Wang Z, Deng L, Lu J, Jian Y, Pei G, Shen H, Yang M, Chen X. Photoelectrochemical assay based on CdS nanocrystal\hexagonal carbon-nitrogen tube nanocomposite for detection of silver ions. Anal Bioanal Chem 2022; 414:2147-2153. [PMID: 35039896 DOI: 10.1007/s00216-021-03850-2] [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: 10/25/2021] [Revised: 12/02/2021] [Accepted: 12/13/2021] [Indexed: 11/29/2022]
Abstract
A photochemical assay was reported based on CdS nanocrystal (NC)\hexagonal carbon-nitrogen tube (HCNT) nanocomposite for the detection of Ag+. When CdS NCs were combined with HCNT, the photocurrent intensity was increased extensively. After incubation of Ag+ with CdS NC\HCNT nanocomposite-modified electrode, Ag2S was formed on the electrode by the ion-change reaction. As the band gap of Ag2S cannot match well with HCNT, the photogenerated electron-hole pairs cannot separate efficiently, so the photocurrent intensity decreases. A good linear relationship between the concentration of Ag+ in the range from 0.01 to 3 μM and the corresponding photocurrent intensity was obtained with a detection limit of 3.3 nM (S/N = 3). The assay was employed to detect Ag+ in lake water and human serum with satisfactory results, which indicated that it might have a broad application in different areas. Photoelectrochemical assay was reported based on CdS nanocrystal\hexagonal carbon-nitrogen tube nanocomposite for detection of Ag.
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Affiliation(s)
- Zaoxia Wang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Lei Deng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Jin Lu
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Yifeng Jian
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Guanghao Pei
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Hongchao Shen
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Minghui Yang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, China.
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4
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Zhang G, Zeng H, Liu J, Nagashima K, Takahashi T, Hosomi T, Tanaka W, Yanagida T. Nanowire-based sensor electronics for chemical and biological applications. Analyst 2021; 146:6684-6725. [PMID: 34667998 DOI: 10.1039/d1an01096d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Detection and recognition of chemical and biological species via sensor electronics are important not only for various sensing applications but also for fundamental scientific understanding. In the past two decades, sensor devices using one-dimensional (1D) nanowires have emerged as promising and powerful platforms for electrical detection of chemical species and biologically relevant molecules due to their superior sensing performance, long-term stability, and ultra-low power consumption. This paper presents a comprehensive overview of the recent progress and achievements in 1D nanowire synthesis, working principles of nanowire-based sensors, and the applications of nanowire-based sensor electronics in chemical and biological analytes detection and recognition. In addition, some critical issues that hinder the practical applications of 1D nanowire-based sensor electronics, including device reproducibility and selectivity, stability, and power consumption, will be highlighted. Finally, challenges, perspectives, and opportunities for developing advanced and innovative nanowire-based sensor electronics in chemical and biological applications are featured.
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Affiliation(s)
- Guozhu Zhang
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Hao Zeng
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Jiangyang Liu
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Kazuki Nagashima
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tsunaki Takahashi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takuro Hosomi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Wataru Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Takeshi Yanagida
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka, 816-8580, Japan
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5
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Ultrasensitive Detection of Ovarian Cancer Biomarker Using Au Nanoplate SERS Immunoassay. BIOCHIP JOURNAL 2021. [DOI: 10.1007/s13206-021-00031-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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6
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Sahu B, Kurrey R, Deb MK, Shrivas K, Karbhal I, Khalkho BR. A simple and cost-effective paper-based and colorimetric dual-mode detection of arsenic(iii) and lead(ii) based on glucose-functionalized gold nanoparticles. RSC Adv 2021; 11:20769-20780. [PMID: 35479386 PMCID: PMC9033963 DOI: 10.1039/d1ra02929k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/27/2021] [Indexed: 11/21/2022] Open
Abstract
We report a simple and cost-effective paper-based and colorimetric dual-mode detection of As(iii) and Pb(ii) based on glucose-functionalized gold nanoparticles under optimized conditions. The paper-based detection of As(iii) and Pb(ii) is based on the change in the signal intensity of AuNPs/Glu fabricated on a paper substrate after the deposition of the analyte using a smartphone, followed by processing with the ImageJ software. The colorimetric method is based on the change in the color and the red shift of the localized surface plasmon resonance (LSPR) absorption band of AuNPs/Glu in the region of 200–800 nm. The red shift (Δλ) of the LSPR band observed was from 525 nm to 660 nm for As(iii) and from 525 nm to 670 nm for Pb(ii). The mechanism of dual-mode detection is due to the non-covalent interactions of As(iii) and Pb(ii) ions with glucose molecule present on the surface AuNPs, resulting in the aggregation of novel metal nanoparticles. The calibration curve gave a good linearity range of 20–500 μg L−1 and 20–1000 μg L−1 for the determination of As(iii) and Pb(ii) with the limit of detection of 5.6 μg L−1 and 7.7 μg L−1 for both metal ions, respectively. The possible effects of different metal ions and anions were also investigated but did not cause any significant interference. The employment of AuNPs/Glu is successfully demonstrated for the determination of As(iii) and Pb(ii) using paper-based and colorimetric sensors in environmental water samples. We report a simple and cost-effective paper-based and colorimetric dual-mode detection of As(iii) and Pb(ii) based on glucose-functionalized gold nanoparticles under optimized conditions.![]()
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Affiliation(s)
- Bhuneshwari Sahu
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur CG-492010 India +91 94255 03750
| | - Ramsingh Kurrey
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur CG-492010 India +91 94255 03750
| | - Manas Kanti Deb
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur CG-492010 India +91 94255 03750
| | - Kamlesh Shrivas
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur CG-492010 India +91 94255 03750
| | - Indrapal Karbhal
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur CG-492010 India +91 94255 03750
| | - Beeta Rani Khalkho
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur CG-492010 India +91 94255 03750
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7
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Microporous Oxide-Based Surface-Enhanced Raman Scattering Film for Quadrillionth Detection of Mercury Ion (II). Processes (Basel) 2021. [DOI: 10.3390/pr9050794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A variety of chemical sensing materials and procedures for conveniently detecting mercuric ion (II) (Hg2+) have been extensively explored. The detection challenges for accomplishing a simple, fast, and low investment procedure at the ultrasensitive level are ongoing. Herein we report a quadrillionth level for detecting Hg2+ by the surface-enhanced Raman scattering (SERS) technique. There is an interaction of silver nanoparticles decorated on a zinc-oxide tetrapod structure and coated on FTO glass (Ag@ZnO-FTO) with an organic ligand. 4,4′-Dipyridyl (DPy) performed as being chemisorbed by Ag nanoparticles interacting with a pyridine ring to produce plasmonic hot spots for SERS. The morphology of the surface and porous structure of the tetrapod becomes the powerful platform for enhanced SERS performance of DPy detection. In the absence of the augmentative electrolyte, the enhancement factor for DPy is more than 107. The inhibiting of the aggregation between Ag and DPy was present following the appearance of Hg2+, demonstrated by the quenching of the SERS signal from the DPy molecules. The capability to reproduce and the selectivity of the sensing by DPy were both demonstrated. In addition, the applications for detecting Hg2+ in natural water and beverages were successfully detected. These results demonstrated the SERS sensors had the potential for detecting Hg2+ in practical use.
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8
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Bai X, Shen A, Hu J. A sensitive SERS-based sandwich immunoassay platform for simultaneous multiple detection of foodborne pathogens without interference. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:4885-4891. [PMID: 32966366 DOI: 10.1039/d0ay01541e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A reliable and sensitive sensing of multiple foodborne pathogens is critical for timely diagnosis and human health. To meet this need, herein, we designed a sandwich immunoassay platform, using functionalized SERS probes and magnetic beads, for the interference-free simultaneous detection of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) in food samples by surface-enhanced Raman scattering (SERS) technology. The signal of two SERS probes coded by triple bonds (C[triple bond, length as m-dash]C and C[triple bond, length as m-dash]N) located at 2105 and 2227 cm-1, respectively, could perfectly avoid the spectral overlap with coexisting materials in the Raman fingerprint region, which ensured the accuracy of the immunoassay platform. The application of functional magnetic beads, integrating enrichment and separation, greatly improved the sensitivity of the detection system. Under magnetic force, due to the mature interaction between the antigen and antibody, the sandwich immunoassay platform could be fabricated. Its limit of detection (LOD) for the simultaneous detection of E. coli and S. aureus was as low as 10 and 25 cfu mL-1, respectively, and the sandwich immunoassay platform was successfully applied for the detection of E. coli and S. aureus in bottled water and milk. As a sensitive and highly selective analytical technique for the simultaneous multiple detection of pathogens, this SERS-based method has great potential to be applied in the field of food safety.
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Affiliation(s)
- Xiangru Bai
- Institute of Environment and Safety, Wuhan Academy of Agricultural Science, Wuhan 430207, P. R. China.
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9
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Zhao Y, Yamaguchi Y, Ni Y, Li M, Dou X. A SERS-based capillary sensor for the detection of mercury ions in environmental water. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 233:118193. [PMID: 32135502 DOI: 10.1016/j.saa.2020.118193] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/21/2020] [Accepted: 02/22/2020] [Indexed: 06/10/2023]
Abstract
Mercury ion (Hg2+) is one of the most toxic heavy metal ions which will cause permanent damage to the brain and kidneys. So, it is important to develop a sensitive, simple and reliable approach to detect Hg2+. In this work, we report a surface-enhanced Raman scatting (SERS) sensor by decorating the inner wall of capillary with 4,4'-dipyridyl (Dpy) functionalized silver nanoparticles (AgNPs). The main advantage of this sensor is that it can collect samples directly by capillary force and carry out on-site analysis by combining portable Raman spectrometer. In the presence of Hg2+, the Dpy molecules would be separated from the surface of AgNPs and coordinated with Hg2+, resulting in a decrease in the SERS signal. A linear correlation of Raman intensity with Hg2+ concentrations from 1 to 100 part-per-billion (ppb) was obtained for quantitative analysis and the limit of detection (LOD) was determined to be 0.1 ppb. The good reproducibility and selectivity of the sensor were also demonstrated. In addition, the sensors were successfully applied to detect Hg2+ in real environmental water samples, and the sampling process provided operation convenience compared to conventional methods. These results indicated that these capillary sensors had great potential for Hg2+ detection in practical use.
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Affiliation(s)
- Yubin Zhao
- Institute of Photonics & Bio-medicine, School of Science, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yoshinori Yamaguchi
- Institute of Photonics & Bio-medicine, School of Science, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China; Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita-city, Osaka 565-0871, Japan
| | - Yi Ni
- Institute of Photonics & Bio-medicine, School of Science, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Mingda Li
- Institute of Photonics & Bio-medicine, School of Science, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaoming Dou
- Institute of Photonics & Bio-medicine, School of Science, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China; Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita-city, Osaka 565-0871, Japan.
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10
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Amin NU, Siddiqi HM, Kun Lin Y, Hussain Z, Majeed N. Bovine Serum Albumin Protein-Based Liquid Crystal Biosensors for Optical Detection of Toxic Heavy Metals in Water. SENSORS (BASEL, SWITZERLAND) 2020; 20:E298. [PMID: 31948064 PMCID: PMC6982898 DOI: 10.3390/s20010298] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/17/2019] [Accepted: 12/31/2019] [Indexed: 01/05/2023]
Abstract
A new methodology involving the use of Bovine Serum Albumin (BSA) as a probe and liquid crystal (LC) as a signal reporter for the detection of heavy metal ions in water at neutral pH was developed. BSA acted as a multi-dentate ligand for the detection of multiple metal ions. The LC sensor was fabricated by immobilizing 3 µg mL-1 BSA solution on dimethyloctadecyl-[3-(trimethoxysilyl)propyl]ammonium chloride (DMOAP)-coated glass slides. In the absence of heavy metal ions, a dark optical image was observed, while in their presence, a dark optical image turned to bright. The optical response was characterized by using a polarized optical microscope (POM). The BSA based LC sensor selectively detected toxic metal ions as compared to s block metal ions and ammonium ions in water. Moreover, the limit of detection was found to be very low (i.e., 1 nM) for the developed new biosensor in comparison to reported biosensors.
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Affiliation(s)
- Noor ul Amin
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (N.u.A.); (N.M.)
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Humaira Masood Siddiqi
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (N.u.A.); (N.M.)
| | - Yang Kun Lin
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Zakir Hussain
- School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan;
| | - Nasir Majeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (N.u.A.); (N.M.)
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11
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Du J, Jing C. One-step fabrication of dopamine-inspired Au for SERS sensing of Cd2+ and polycyclic aromatic hydrocarbons. Anal Chim Acta 2019; 1062:131-139. [DOI: 10.1016/j.aca.2019.02.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 02/12/2019] [Accepted: 02/19/2019] [Indexed: 11/26/2022]
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12
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Yang S, Park K, Kim B, Kang T. Low-Temperature Vapor-Phase Synthesis of Single-Crystalline Gold Nanostructures: Toward Exceptional Electrocatalytic Activity for Methanol Oxidation Reaction. NANOMATERIALS 2019; 9:nano9040595. [PMID: 30974889 PMCID: PMC6523424 DOI: 10.3390/nano9040595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/03/2019] [Accepted: 04/06/2019] [Indexed: 11/24/2022]
Abstract
Au nanostructures (Au NSs) have been considered promising materials for applications in fuel cell catalysis, electrochemistry, and plasmonics. For the fabrication of high-performance Au NS-based electronic or electrochemical devices, Au NSs should have clean surfaces and be directly supported on a substrate without any mediating molecules. Herein, we report the vapor-phase synthesis of Au NSs on a fluorine-doped tin oxide (FTO) substrate at 120 °C and their application to the electrocatalytic methanol oxidation reaction (MOR). By employing AuCl as a precursor, the synthesis temperature for Au NSs was reduced to under 200 °C, enabling the direct synthesis of Au NSs on an FTO substrate in the vapor phase. Considering that previously reported vapor-phase synthesis of Au NSs requires a high temperature over 1000 °C, this proposed synthetic method is remarkably simple and practical. Moreover, we could selectively synthesize Au nanoparticles (NPs) and nanoplates by adjusting the location of the substrate, and the size of the Au NPs was controllable by changing the reaction temperature. The synthesized Au NSs are a single-crystalline material with clean surfaces that achieved a high methanol oxidation current density of 14.65 mA/cm2 when intimately supported by an FTO substrate. We anticipate that this novel synthetic method can widen the applicability of vapor-phase synthesized Au NSs for electronic and electrochemical devices.
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Affiliation(s)
- Siyeong Yang
- Department of Chemistry, KAIST, Daejeon 34141, Korea.
| | | | - Bongsoo Kim
- Department of Chemistry, KAIST, Daejeon 34141, Korea.
| | - Taejoon Kang
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Korea.
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Korea.
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13
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Hüseynli S, Çimen D, Bereli N, Denizli A. Molecular Imprinted Based Quartz Crystal Microbalance Nanosensors for Mercury Detection. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800071. [PMID: 31565367 PMCID: PMC6436597 DOI: 10.1002/gch2.201800071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/08/2018] [Indexed: 06/10/2023]
Abstract
Mercury(II) ions are emerging as a result of more human activity, especially coal-fired power plants, industrial processes, waste incineration plants, and mining. The mercury found in different forms after spreading around diffuses the nature of other living things. Although the damage to health is not yet clear, it is obvious that it is the cause of many diseases. This work detects the problem of mercury(II) ions, one of the active pollutants in wastewater. For this purpose, it is possible to detect the smallest amount of mercury(II) ions by means of the mercury(II) ions suppressed quartz crystal microbalance nanosensor developed. Zinc(II) and cadmium(II) ions are chosen as competitor elements. Developed nanosensor technology is known as the ideal method in the laboratory environment to detect mercury(II) ions from wastewater because of its low cost and precise result orientation. The range of linearity and the limit of detection are measured as 0.25 × 10-9-50 × 10-9 m. The detection limit is found to be 0.21 × 10-9 m. The mercury(II) ions imprinted nanosensors prepared according to the obtained experimental findings show high selectivity and sensitivity to detect mercury(II) ions from wastewater.
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Affiliation(s)
- Sabina Hüseynli
- Department of ChemistryHacettepe UniversityBeytepeAnkara06800Turkey
| | - Duygu Çimen
- Department of ChemistryHacettepe UniversityBeytepeAnkara06800Turkey
| | - Nilay Bereli
- Department of ChemistryHacettepe UniversityBeytepeAnkara06800Turkey
| | - Adil Denizli
- Department of ChemistryHacettepe UniversityBeytepeAnkara06800Turkey
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14
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Eom G, Hwang A, Lee DK, Guk K, Moon J, Jeong J, Jung J, Kim B, Lim EK, Kang T. Superb Specific, Ultrasensitive, and Rapid Identification of the Oseltamivir-Resistant H1N1 Virus: Naked-Eye and SERS Dual-Mode Assay Using Functional Gold Nanoparticles. ACS APPLIED BIO MATERIALS 2019; 2:1233-1240. [DOI: 10.1021/acsabm.8b00807] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Gayoung Eom
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Ahreum Hwang
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Do Kyung Lee
- BioNano Health Guard Research Center, KRIBB, Daejeon 34141, Republic of Korea
| | - Kyeonghye Guk
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
| | - Jeong Moon
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Chemical and Biomolecular Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Jinyoung Jeong
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
- Environmental Disease Research Center, KRIBB, Daejeon 34141, Republic of Korea
| | - Juyeon Jung
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
| | - Bongsoo Kim
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
| | - Taejoon Kang
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
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15
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Feng C, Zhao P, Wang L, Yang T, Wu Y, Ding Y, Hu A. Fluorescent electronic tongue based on soluble conjugated polymeric nanoparticles for the discrimination of heavy metal ions in aqueous solution. Polym Chem 2019. [DOI: 10.1039/c9py00033j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A fluorescence sensing array (or fluorescent electronic tongue) based on six sorts of soluble conjugated polymeric nanoparticles (SCPNs) decorated with PEG chains is designed for the rapid identification of heavy metal ions in water.
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Affiliation(s)
- Chuying Feng
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Peng Zhao
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Lili Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Tao Yang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yusen Wu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yun Ding
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Aiguo Hu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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16
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Macagnano A, Papa P, Avossa J, Perri V, Marelli M, Sprovieri F, Zampetti E, De Cesare F, Bearzotti A, Pirrone N. Passive Sampling of Gaseous Elemental Mercury Based on a Composite TiO₂NP/AuNP Layer. NANOMATERIALS 2018; 8:nano8100798. [PMID: 30301278 PMCID: PMC6215095 DOI: 10.3390/nano8100798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 09/27/2018] [Accepted: 10/05/2018] [Indexed: 12/01/2022]
Abstract
Passive sampling systems (PASs) are a low cost strategy to quantify Hg levels in air over both different environmental locations and time periods of few hours to weeks/months. For this reason, novel nanostructured materials have been designed and developed. They consist of an adsorbent layer made of titania nanoparticles (TiO2NPs, ≤25 nm diameter) finely decorated with gold nanoparticles. The TiO2NPs functionalization occurred for the photocatalytic properties of titania-anatase when UV-irradiated in an aqueous solution containing HAuCl4. The resulting nanostructured suspension was deposited by drop-casting on a thin quartz slices, dried and then incorporated into a common axial sampler to be investigated as a potential PAS device. The morphological characteristics of the sample were studied by High-Resolution Transmission Electron Microscopy, Atomic Force Microscopy, and Optical Microscopy. UV-Vis spectra showed a blue shift of the membrane when exposed to Hg0 vapors. The adsorbed mercury was thermally desorbed for a few minutes, and then quantified by a mercury vapor analyzer. Such a sampling system reported an efficiency of adsorption that was equal to ≈95%. Temperature and relative humidity only mildly affected the membrane performances. These structures seem to be promising candidates for mercury samplers, due to both the strong affinity of gold with Hg, and the wide adsorbing surface.
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Affiliation(s)
- Antonella Macagnano
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, 00016 Monterotondo, Italy.
- Department of Innovation in Biological Systems, Food and Forestry University of Tuscia (DIBAF), Via S. Camillo de Lellis, 00100 Viterbo, Italy.
| | - Paolo Papa
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, 00016 Monterotondo, Italy.
| | - Joshua Avossa
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, 00016 Monterotondo, Italy.
| | - Viviana Perri
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, 00016 Monterotondo, Italy.
| | - Marcello Marelli
- Institute of Molecular Science and Technologies-National Research Council (ISTM-CNR), Via G. Fantoli 16/15, 20138 Milano, Italy.
| | - Francesca Sprovieri
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Division of Rende, c/o UNICAL-Polifunzionale, 87036 Arcavacata di Rende (CS), Italy.
| | - Emiliano Zampetti
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, 00016 Monterotondo, Italy.
| | - Fabrizio De Cesare
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, 00016 Monterotondo, Italy.
- Department of Innovation in Biological Systems, Food and Forestry University of Tuscia (DIBAF), Via S. Camillo de Lellis, 00100 Viterbo, Italy.
| | - Andrea Bearzotti
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, 00016 Monterotondo, Italy.
| | - Nicola Pirrone
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Division of Rende, c/o UNICAL-Polifunzionale, 87036 Arcavacata di Rende (CS), Italy.
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17
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Pinheiro PC, Daniel-da-Silva AL, Nogueira HIS, Trindade T. Functionalized Inorganic Nanoparticles for Magnetic Separation and SERS Detection of Water Pollutants. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800132] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paula C. Pinheiro
- Department of Chemistry-CICECO; University of Aveiro; 3810-193 Aveiro Portugal
| | | | | | - Tito Trindade
- Department of Chemistry-CICECO; University of Aveiro; 3810-193 Aveiro Portugal
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18
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Wu Y, Jiang T, Wu Z, Yu R. Internal standard-based SERS aptasensor for ultrasensitive quantitative detection of Ag + ion. Talanta 2018; 185:30-36. [PMID: 29759204 DOI: 10.1016/j.talanta.2018.03.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 02/28/2018] [Accepted: 03/07/2018] [Indexed: 12/17/2022]
Abstract
A ratiometric surface-enhanced Raman scattering (SERS) aptasensor based on internal standard (IS) methods was proposed for the ultrasensitive and reproducible quantitative detection of silver ion (Ag+) with Au@Ag core-shell nanoparticle (Au@Ag NP) substrate. In principle, the thiolated 5'-Rox C-containing labeled aptamer probe (Rox-aptamer) is firstly immobilized on the SERS substrate surface and then hybridizes with the complementary DNA (cDNA) to form a rigid double-stranded DNA (dsDNA), in which the Rox Raman labels is used to produce the Raman signal. Furthermore, the pyridine is employed as an IS element to provide the ratiometric determination of target. In the presence of Ag+, the Rox-aptamer is turned into the cytosine (C)-Ag+-C mediated hairpin structure, which remarkably reduces the distance between the Rox labels and the Au@Ag NP surface responsible for a measurable 'turn-on' signal change of Rox. This IS-based ratiometric SERS aptasensor exhibits a limit of detection of 50 pM for Ag+ with a linear detection range from 0.1 to 100 nM and the shortcoming of irreproducibility of SERS signal could be overcome. The proposed method provides a simple, robust, and rapid approach for the sensitive and reproducible quantitative detection of Ag+, and it could also be used for the detection of other metal ions which exhibits specific interactions with natural or synthetic bases.
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Affiliation(s)
- Yan Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China; Department of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Inorganic Special Functional Materials, Yangtze Normal University, Chongqing, Fuling 408003, People's Republic of China
| | - Tingting Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Zhaoyang Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Ruqin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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19
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Tsoutsi D, Sanles-Sobrido M, Cabot A, Gil PR. Common Aspects Influencing the Translocation of SERS to Biomedicine. Curr Med Chem 2018; 25:4638-4652. [PMID: 29303073 PMCID: PMC6302347 DOI: 10.2174/0929867325666180105101841] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 11/22/2022]
Abstract
This review overviews the impact in biomedicine of surface enhanced. Raman scattering motivated by the great potential we believe this technique has. We present the advantages and limitations of this technique relevant to bioanalysis in vitro and in vivo and how this technique goes beyond the state of the art of traditional analytical, labelling and healthcare diagnostic technologies.
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Affiliation(s)
| | | | | | - Pilar Rivera Gil
- Address correspondence to this author at the Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain; Tel/Fax: +34933160918; E-mail:
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20
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A Simple and Highly Sensitive Thymine Sensor for Mercury Ion Detection Based on Surface Enhanced Raman Spectroscopy and the Mechanism Study. NANOMATERIALS 2017; 7:nano7070192. [PMID: 28737720 PMCID: PMC5535258 DOI: 10.3390/nano7070192] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/10/2017] [Accepted: 07/18/2017] [Indexed: 11/16/2022]
Abstract
Mercury ion (Hg2+) is recognized as one of the most toxic metal ions for the environment and for human health. Techniques utilized in the detection of Hg2+ are an important factor. Herein, a simple thymine was successfully employed as the surface enhanced Raman spectroscopy sensor for Hg2+ ion detection. The limit of detection (LOD) of the developed sensor is better than 0.1 nM (0.02 ppb). This sensor can also selectively distinguish Hg2+ ions over 7 types of alkali, heavy metal and transition-metal ions. Moreover, the LOD of the sensor can even achieve 1 ppb in practical application in the nature system, which is half the maximum allowable level (10 nM, 2 ppb) stipulated in the US Environmental Protection Agency standard. Further investigation of the thymine-Hg2+-thymine coordination mechanism provides a possible means of detecting other metal ions by replacing the metal ion-specific ligands. This work paves the way for the detection of toxic metal ions and environmental problems.
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21
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DNA-functionalized photonic crystal microspheres for multiplex detection of toxic metal ions. Colloids Surf B Biointerfaces 2017; 154:142-149. [DOI: 10.1016/j.colsurfb.2017.03.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 02/20/2017] [Accepted: 03/03/2017] [Indexed: 01/23/2023]
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22
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Timchalk C, Weber TJ, Smith JN. The need for non- or minimally-invasive biomonitoring strategies and the development of pharmacokinetic/pharmacodynamic models for quantification. CURRENT OPINION IN TOXICOLOGY 2017; 4:28-34. [PMID: 35978611 PMCID: PMC9380408 DOI: 10.1016/j.cotox.2017.03.003] [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] [Indexed: 11/18/2022]
Abstract
Advancements in Exposure Science involving the development and deployment of biomarkers of exposure and biological response are anticipated to significantly (and positively) influence health outcomes associated with occupational, environmental and clinical exposure to chemicals/drugs. To achieve this vision, innovative strategies are needed to develop multiplex sensor platforms capable of quantifying individual and mixed exposures (i.e. systemic dose) by measuring biomarkers of dose and biological response in readily obtainable (non-invasive) biofluids. Secondly, the use of saliva (alternative to blood) for biomonitoring coupled with the ability to rapidly analyze multiple samples in real-time offers an innovative opportunity to revolutionize biomonitoring assessments. In this regard, the timing and number of samples taken for biomonitoring will not be limited as is currently the case. In addition, real-time analysis will facilitate identification of work practices or conditions that are contributing to increased exposures and will make possible a more rapid and successful intervention strategy. The initial development and application of computational models for evaluation of saliva/blood analyte concentration at anticipated exposure levels represents an important opportunity to establish the limits of quantification and robustness of multiplex sensor systems by exploiting a unique computational modeling framework. The use of these pharmacokinetic models will also enable prediction of an exposure dose based on the saliva/blood measurement. This novel strategy will result in a more accurate prediction of exposures and, once validated, can be employed to assess dosimetry to a broad range of chemicals in support of biomonitoring and epidemiology studies.
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Affiliation(s)
| | - Thomas J Weber
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Jordan N Smith
- Pacific Northwest National Laboratory, Richland, WA 99354, USA
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23
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Wang Z, Zong S, Wu L, Zhu D, Cui Y. SERS-Activated Platforms for Immunoassay: Probes, Encoding Methods, and Applications. Chem Rev 2017; 117:7910-7963. [DOI: 10.1021/acs.chemrev.7b00027] [Citation(s) in RCA: 368] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhuyuan Wang
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Shenfei Zong
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Lei Wu
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Dan Zhu
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Yiping Cui
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
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24
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25
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Shahamirifard SA, Ghaedi M. Design and construction of a new optical solid-state mercury(ii) sensor based on PVC membrane sensitized with colloidal carbon dots. NEW J CHEM 2017. [DOI: 10.1039/c7nj02421e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A new Hg2+ ion solid-state double layer sensor impregnated with colloidal carbon dots and N′-(3-(4-(dimethylamino)phenyl)allylidene)isonicotinohydrazide (NDPAI, as a second layer) was inserted in plasticized polyvinyl chloride (PVC) as the first layer.
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26
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Song C, Yang B, Zhu Y, Yang Y, Wang L. Ultrasensitive sliver nanorods array SERS sensor for mercury ions. Biosens Bioelectron 2016; 87:59-65. [PMID: 27522013 DOI: 10.1016/j.bios.2016.07.097] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/12/2016] [Accepted: 07/27/2016] [Indexed: 10/21/2022]
Abstract
With years of outrageous mercury emissions, there is an urgent need to develop convenient and sensitive methods for detecting mercury ions in response to increasingly serious mercury pollution in water. In the present work, a portable, ultrasensitive SERS sensor is proposed and utilized for detecting trace mercury ions in water. The SERS sensor is prepared on an excellent sliver nanorods array SERS substrate by immobilizing T-component oligonucleotide probes labeled with dye on the 3'-end and -SH on the 5'-end. The SERS sensor responses to the specific chemical bonding between thymine and mercury ions, which causes the previous flexible single strand of oligonucleotide probe changing into rigid and upright double chain structure. Such change in the structure drives the dyes far away from the excellent SERS substrate and results in a SERS signal attenuation of the dye. Therefore, by monitoring the decay of SERS signal of the dye, mercury ions in water can be detected qualitatively and quantitatively. The experimental results indicate that the proposed optimal SERS sensor owns a linear response with wide detecting range from 1pM to 1μM, and a detection limit of 0.16pM is obtained. In addition, the SERS sensor demonstrates good specificity for Hg2+, which can accurately identify trace mercury ions from a mixture of ten kinds of other ions. The SERS sensor has been further executed to analyze the trace mercury ions in tap water and lake water respectively, and good recovery rates are obtained for sensing both kinds of water. With its high selectivity and good portability, the ultrasensitive SERS sensor is expected to be a promising candidate for discriminating mercury ions in the fields of environmental monitoring and food safety.
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Affiliation(s)
- Chunyuan Song
- Key Lab for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), Synergetic Innovation Center for Organic Electronics and Information Displays, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Boyue Yang
- Key Lab for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), Synergetic Innovation Center for Organic Electronics and Information Displays, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Yu Zhu
- Suzhou Institute of Nano-Tech & Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China.
| | - Yanjun Yang
- Key Lab for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), Synergetic Innovation Center for Organic Electronics and Information Displays, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Lianhui Wang
- Key Lab for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), Synergetic Innovation Center for Organic Electronics and Information Displays, Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
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27
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Kim H, Seol ML, Lee DI, Lee J, Kang IS, Lee H, Kang T, Choi YK, Kim B. Single nanowire on graphene (SNOG) as an efficient, reproducible, and stable SERS-active platform. NANOSCALE 2016; 8:8878-8886. [PMID: 27071328 DOI: 10.1039/c6nr00092d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Developing a well-defined nanostructure that can provide strong, reproducible, and stable SERS signals is quite important for the practical application of surface-enhanced Raman scattering (SERS) sensors. We report here a novel single nanowire (NW) on graphene (SNOG) structure as an efficient, reproducible, and stable SERS-active platform. Au NWs having a well-defined single-crystal geometry on a monolayer graphene-coated metal film can form a well-defined, continuous nanogap structure that provides extremely reproducible and stable SERS signals. The in-NW reproducibility was verified by 2-dimensional Raman mapping, and the NW-to-NW reproducibility was verified by the cumulative curves of 32 SERS spectra. The simulation also indicated that a highly regular, line-shaped hot spot formed between the Au NW and graphene. Furthermore, SNOG platforms showed improved photostability and long-term oxidation immunity. We anticipate that SNOG platforms will be appropriate for practical biological and chemical sensor applications that demand reproducible, stable, and strong signal production.
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Affiliation(s)
- Hongki Kim
- Department of Chemistry, KAIST, Yuseong-gu, Daejeon 34141, Korea.
| | - Myeong-Lok Seol
- Department of Electrical Engineering, KAIST, Yuseong-gu, Daejeon 34141, Korea.
| | - Dong-Il Lee
- Department of Electrical Engineering, KAIST, Yuseong-gu, Daejeon 34141, Korea.
| | - Jiyoung Lee
- Department of Chemistry, KAIST, Yuseong-gu, Daejeon 34141, Korea.
| | - Il-Suk Kang
- National Nanofab Center, KAIST, Yuseong-gu, Daejeon 34141, Korea
| | - Hyoban Lee
- Department of Chemistry, KAIST, Yuseong-gu, Daejeon 34141, Korea.
| | - Taejoon Kang
- Hazards Monitoring Bionano Research Center and BioNano Health Guard Research Center, KRIBB, Yuseong-gu, Daejeon 34141, Korea. and Major of Nanobiotechnology and Bioinformatics, UST, Yuseong-gu, Daejeon 34141, Korea
| | - Yang-Kyu Choi
- Department of Electrical Engineering, KAIST, Yuseong-gu, Daejeon 34141, Korea.
| | - Bongsoo Kim
- Department of Chemistry, KAIST, Yuseong-gu, Daejeon 34141, Korea.
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28
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Wang CG, Wu XZ, Di D, Dong PT, Xiao R, Wang SQ. Orientation-dependent nanostructure arrays based on anisotropic silicon wet-etching for repeatable surface-enhanced Raman scattering. NANOSCALE 2016; 8:4672-4680. [PMID: 26853057 DOI: 10.1039/c5nr04750a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Repeatable fabrication of sensitive plasmonic substrates through a simple procedure has become a major challenge for SERS-based sensing and imaging. Herein, a new class of high-performance SERS substrates, including pyramid, ridged-hexagon, and quasi-triangle nanostructures, is successfully fabricated based on the nanosphere lithography technique and anisotropic wet etching. Using the wafer-scale Cr-hole array as the etching mask, cavity-templates of various configurations are fabricated by the orientation-dependent wet etching technique, from where the nanostructure arrays are finally peeled-off. The anisotropic wet etching on (100), (110), and (111) silicon wafers has been systematically studied at the nanoscale revealing the formation mechanism of these cavity-templates. The peeled-off nanostructure arrays provide high-density tips and/or gaps (about 2.5 × 10(7) mm(-2)) and thus facilitate the generation of "hot spots". The distribution of the electromagnetic field is visualized by the finite difference time domain calculation. And the calculation results are validated by SERS characterization. The SERS enhancement factors of these substrates are in the order of 10(6)-10(7), with the maximum enhancement factor of 1.32 × 10(7) yielded by the ridged-hexagon arrays. The proposed nanostructure arrays present excellent homogeneity and reproducibility (with the largest relative standard deviation of 16.43%) for the reason that the SERS-active substrates are peeled-off from an identical template. The cost-effective fabrication, high sensitivity, good homogeneity and well-performed reproducibility demonstrate that these orientation-dependent NSs are good candidates for SERS-based in vitro and in situ detection and biosensing.
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Affiliation(s)
- C G Wang
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China. and Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, P. R. China.
| | - X Z Wu
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China.
| | - D Di
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China. and Dingyuan Automotive Proving Ground, Nanjing, Jiangsu Province 210028, P.R. China
| | - P T Dong
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China.
| | - R Xiao
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, P. R. China.
| | - S Q Wang
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, P. R. China.
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29
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Gwak R, Kim H, Yoo SM, Lee SY, Lee GJ, Lee MK, Rhee CK, Kang T, Kim B. Precisely Determining Ultralow level UO2(2+) in Natural Water with Plasmonic Nanowire Interstice Sensor. Sci Rep 2016; 6:19646. [PMID: 26791784 PMCID: PMC4726367 DOI: 10.1038/srep19646] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/15/2015] [Indexed: 01/01/2023] Open
Abstract
Uranium is an essential raw material in nuclear energy generation; however, its use raises concerns about the possibility of severe damage to human health and the natural environment. In this work, we report an ultrasensitive uranyl ion (UO22+) detection method in natural water that uses a plasmonic nanowire interstice (PNI) sensor combined with a DNAzyme-cleaved reaction. UO22+ induces the cleavage of DNAzymes into enzyme strands and released strands, which include Raman-active molecules. A PNI sensor can capture the released strands, providing strong surface-enhanced Raman scattering signal. The combination of a PNI sensor and a DNAzyme-cleaved reaction significantly improves the UO22+ detection performance, resulting in a detection limit of 1 pM and high selectivity. More importantly, the PNI sensor operates perfectly, even in UO22+-contaminated natural water samples. This suggests the potential usefulness of a PNI sensor in practical UO22+-sensing applications. We anticipate that diverse toxic metal ions can be detected by applying various ion-specific DNA-based ligands to PNI sensors.
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Affiliation(s)
- Raekeun Gwak
- KAIST, Department of Chemistry, Daejeon 34141, Korea
| | - Hongki Kim
- KAIST, Department of Chemistry, Daejeon 34141, Korea
| | - Seung Min Yoo
- KAIST, Department of Chemical and Biomolecular Engineering, Daejeon 34141, Korea
| | - Sang Yup Lee
- KAIST, Department of Chemical and Biomolecular Engineering, Daejeon 34141, Korea
| | - Gyoung-Ja Lee
- KAERI, Nuclear Materials Development Division, Daejeon 34057, Korea
| | - Min-Ku Lee
- KAERI, Nuclear Materials Development Division, Daejeon 34057, Korea
| | - Chang-Kyu Rhee
- KAERI, Nuclear Materials Development Division, Daejeon 34057, Korea
| | - Taejoon Kang
- KRIBB, BioNanotechnology Research Center and BioNano Health Guard Research Center, Daejeon 34141, Korea.,UST, Major of Nanobiotechnology and Bioinformatics, Daejeon 34113, Korea
| | - Bongsoo Kim
- KAIST, Department of Chemistry, Daejeon 34141, Korea
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30
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Chao J, Cao W, Su S, Weng L, Song S, Fan C, Wang L. Nanostructure-based surface-enhanced Raman scattering biosensors for nucleic acids and proteins. J Mater Chem B 2016; 4:1757-1769. [PMID: 32263053 DOI: 10.1039/c5tb02135a] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Detection of nucleic acid and protein targets related to human health and safety has attracted widespread attention. Surface-enhanced Raman scattering (SERS) is a powerful tool for biomarker detection because of its ultrahigh detection sensitivity and unique fingerprinting spectra. In this review, we first introduce the development of nanostructure-based SERS-active substrates and SERS nanotags, which greatly influence the performance of SERS biosensors. We then focus on recent advances in SERS biosensors for DNA, microRNA and protein determination, including label-free, labeled and multiplex analyses as well as in vivo imaging. Finally, the prospects and challenges of such nanostructure-based SERS biosensors are discussed.
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Affiliation(s)
- Jie Chao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
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31
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Wang H, Jiang X, He Y. Highly sensitive and reproducible silicon-based surface-enhanced Raman scattering sensors for real applications. Analyst 2016; 141:5010-9. [DOI: 10.1039/c6an01251e] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
During the past few decades, thanks to silicon nanomaterials’ outstanding properties, different dimensional silicon nanostructures have been employed for designing and fabricating high-performance surface-enhanced Raman scattering (SERS) sensors for chemical and biological detection.
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Affiliation(s)
- Houyu Wang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano & Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC)
- Soochow University
- Suzhou 215123
- China
| | - Xiangxu Jiang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano & Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC)
- Soochow University
- Suzhou 215123
- China
| | - Yao He
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano & Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC)
- Soochow University
- Suzhou 215123
- China
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32
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Shi X, Li HW, Ying YL, Liu C, Zhang L, Long YT. In situ monitoring of catalytic process variations in a single nanowire by dark-field-assisted surface-enhanced Raman spectroscopy. Chem Commun (Camb) 2016; 52:1044-7. [DOI: 10.1039/c5cc09220e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In this communication, we provide a new method for characterizing the kinetics of a catalytic process on multiple sites of a single nanowire by dark-field-assisted surface-enhanced Raman spectroscopy (DFSERS).
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Affiliation(s)
- Xin Shi
- Key Laboratory for Advanced Materials and Department of Chemistry
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Hao-Wen Li
- Key Laboratory for Advanced Materials and Department of Chemistry
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Yi-Lun Ying
- Key Laboratory for Advanced Materials and Department of Chemistry
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Chang Liu
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
- P. R. China
| | - Li Zhang
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
- P. R. China
| | - Yi-Tao Long
- Key Laboratory for Advanced Materials and Department of Chemistry
- East China University of Science and Technology
- Shanghai
- P. R. China
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33
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Moon J, Yi SY, Hwang A, Eom G, Sim J, Jeong J, Lim EK, Chung BH, Kim B, Jung J, Kang T. Facile and sensitive detection of influenza viruses using SERS antibody probes. RSC Adv 2016. [DOI: 10.1039/c6ra13966c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report facile and sensitive influenza virus detection method using surface-enhanced Raman scattering antibody probes.
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34
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Sun Z, Du J, Jing C. Recent progress in detection of mercury using surface enhanced Raman spectroscopy--A review. J Environ Sci (China) 2016; 39:134-143. [PMID: 26899652 DOI: 10.1016/j.jes.2015.11.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/30/2015] [Accepted: 12/01/2015] [Indexed: 05/12/2023]
Abstract
Concerns over exposure to mercury have motivated the exploration of cost-effective, rapid, and reliable method for monitoring Hg(2+) in the environment. Recently, surface-enhanced Raman scattering (SERS) has become a promising alternative method for Hg(2+) analysis. SERS is a spectroscopic technique which combines modern laser spectroscopy with the optical properties of nano-sized noble metal structures, resulting in substantially increased Raman signals. When Hg(2+) is in a close contact with metallic nanostructures, the SERS effect provides unique structural information together with ultrasensitive detection limits. This review introduces the principles and contemporary approaches of SERS-based Hg(2+) detection. In addition, the perspective and challenges are briefly discussed.
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Affiliation(s)
- Zhenli Sun
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Jingjing Du
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chuanyong Jing
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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35
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Song C, Yang B, Yang Y, Wang L. SERS-based mercury ion detections: principles, strategies and recent advances. Sci China Chem 2015. [DOI: 10.1007/s11426-015-5504-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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36
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Reduced graphene oxide conjugate thymine as a new probe for ultrasensitive and selective fluorometric determination of mercury(II) ions. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1461-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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37
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Kang T, Kim H, Lee JM, Lee H, Choi YS, Kang G, Seo MK, Chung BH, Jung Y, Kim B. Ultra-specific zeptomole microRNA detection by plasmonic nanowire interstice sensor with Bi-temperature hybridization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4200-4206. [PMID: 24975681 DOI: 10.1002/smll.201400164] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 05/26/2014] [Indexed: 06/03/2023]
Abstract
MicroRNAs (miRNAs) are emerging new biomarkers for many human diseases. To fully employ miRNAs as biomarkers for clinical diagnosis, it is most desirable to accurately determine the expression patterns of miRNAs. The optimum miRNA profiling method would feature 1) highest sensitivity with a wide dynamic range for accurate expression patterns, 2) supreme specificity to discriminate single nucleotide polymorphisms (SNPs), and 3) simple sensing processes to minimize measurement variation. Here, an ultra-specific detection method of miRNAs with zeptomole sensitivity is reported by applying bi-temperature hybridizations on single-crystalline plasmonic nanowire interstice (PNI) sensors. This method shows near-perfect accuracy of SNPs and a very low detection limit of 100 am (50 zeptomole) without any amplification or labeling steps. Furthermore, multiplex sensing capability and wide dynamic ranges (100 am-100 pm) of this method allows reliable observation of the expression patterns of miRNAs extracted from human tissues. The PNI sensor offers combination of ultra-specificity and zeptomole sensitivity while requiring two steps of hybridization between short oligonucleotides, which could present the best set of features for optimum miRNA sensing method.
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Affiliation(s)
- Taejoon Kang
- BioNanotechnology Research Center and BioNano Health Guard Research Center, KRIBB, 305-806, Korea
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38
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Abdelhamid HN, Wu HF. Ultrasensitive, rapid, and selective detection of mercury using graphene assisted laser desorption/ionization mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:861-868. [PMID: 24590364 DOI: 10.1007/s13361-014-0825-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/24/2013] [Accepted: 12/26/2013] [Indexed: 06/03/2023]
Abstract
We report an extremely sensitive and specific detection of mercuric ions (Hg²⁺) based on graphene assisted laser desorption/ionization mass spectrometry (GALDI-MS). Combining the highly selective coordination interactions between thymine (T) and Hg²⁺, we present a simple, effective, and novel approach, based on π-π interactions of the T-Hg²⁺-T complex and G that can serve as a platform and matrix for GALDI-MS. The present sensor not only exhibits high selectivity and sensitivity (picomolar) to Hg²⁺ in aqueous solution, but also can elucidate the chemical structures of the metal complexes. The significant advantage in the current approach is that there is no need for a sophisticated instrument, and no sample pretreatment is required to detect the Hg²⁺ ions.
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39
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Selective determination of mercury(II) by self-referenced surface-enhanced Raman scattering using dialkyne-modified silver nanoparticles. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1259-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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40
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Synthesis of silver nanostructures by multistep methods. SENSORS 2014; 14:5860-89. [PMID: 24670722 PMCID: PMC4029645 DOI: 10.3390/s140405860] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 03/16/2014] [Accepted: 03/18/2014] [Indexed: 12/28/2022]
Abstract
The shape of plasmonic nanostructures such as silver and gold is vital to their physical and chemical properties and potential applications. Recently, preparation of complex nanostructures with rich function by chemical multistep methods is the hotspot of research. In this review we introduce three typical multistep methods to prepare silver nanostructures with well-controlled shapes, including the double reductant method, etching technique and construction of core-shell nanostructures. The growth mechanism of double the reductant method is that different favorable facets of silver nanocrystals are produced in different reductants, which can be used to prepare complex nanostructures such as nanoflags with ultranarrow resonant band bandwidth or some silver nanostructures which are difficult to prepare using other methods. The etching technique can selectively remove nanoparticles to achieve the aim of shape control and is widely used for the synthesis of nanoflowers and hollow nanostructures. Construction of core-shell nanostructures is another tool to control shape and size. The three methods can not only prepare various silver nanostructures with well-controlled shapes, which exhibit unique optical properties, such as strong surface-enhanced Raman scattering (SERS) signal and localized surface plasmon resonance (LSPR) effect, but also have potential application in many areas.
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41
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Sener G, Uzun L, Denizli A. Colorimetric sensor array based on gold nanoparticles and amino acids for identification of toxic metal ions in water. ACS APPLIED MATERIALS & INTERFACES 2014; 6:18395-400. [PMID: 25330256 DOI: 10.1021/am5071283] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
A facile colorimetric sensor array for detection of multiple toxic heavy metal ions (Hg(2+), Cd(2+), Fe(3+), Pb(2+), Al(3+), Cu(2+), and Cr(3+)) in water is demonstrated using 11-mercaptoundecanoic acid (MUA)-capped gold nanoparticles (AuNPs) and five amino acids (lysine, cysteine, histidine, tyrosine, and arginine). The presence of amino acids (which have functional groups that can form complexes with metal ions and MUA) regulates the aggregation of MUA-capped particles; it can either enhance or diminish the particle aggregation. The combinatorial colorimetric response of all channels of the sensor array (i.e., color change in each of AuNP and amino acid couples) enables naked-eye discrimination of all of the metal ions tested in this study with excellent selectivity.
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Affiliation(s)
- Gulsu Sener
- Department of Chemistry, Faculty of Science , and ‡Nanotechnology and Nanomedicine Division, Institute of Science, Hacettepe University , Ankara, Turkey
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42
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Li DW, Zhai WL, Li YT, Long YT. Recent progress in surface enhanced Raman spectroscopy for the detection of environmental pollutants. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1115-3] [Citation(s) in RCA: 203] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Kim H, Kang T, Lee H, Ryoo H, Yoo SM, Lee SY, Kim B. Facile Fabrication of Multi-targeted and Stable Biochemical SERS Sensors. Chem Asian J 2013; 8:3010-4. [DOI: 10.1002/asia.201300764] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Revised: 07/25/2013] [Indexed: 11/06/2022]
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44
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Lv ZY, Li AQ, Fei Y, Li Z, Chen JR, Wang AJ, Feng JJ. Facile and controlled electrochemical route to three-dimensional hierarchical dendritic gold nanostructures. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.07.123] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Du Y, Liu R, Liu B, Wang S, Han MY, Zhang Z. Surface-Enhanced Raman Scattering Chip for Femtomolar Detection of Mercuric Ion (II) by Ligand Exchange. Anal Chem 2013; 85:3160-5. [DOI: 10.1021/ac303358w] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yuanxin Du
- Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, China
| | - Renyong Liu
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Bianhua Liu
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Suhua Wang
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Ming-Yong Han
- Institute of Materials Research
and Engineering, A-STAR, 3 Research Link,
117602, Singapore
| | - Zhongping Zhang
- Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, China
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
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46
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Kashyap PL, Kumar S, Srivastava AK, Sharma AK. Myconanotechnology in agriculture: a perspective. World J Microbiol Biotechnol 2012; 29:191-207. [DOI: 10.1007/s11274-012-1171-6] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2012] [Accepted: 09/13/2012] [Indexed: 11/25/2022]
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