1
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Xu K, Ren J, Shan X, Zhang M, Jing C. Detecting antimony(III) on-site using novel gel-based techniques: Colorimetric diffusive equilibrium in thin films for two-dimensional imaging and surface-enhanced Raman scattering for sensitive quantification. Talanta 2024; 278:126502. [PMID: 38968653 DOI: 10.1016/j.talanta.2024.126502] [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: 02/27/2024] [Revised: 06/27/2024] [Accepted: 06/30/2024] [Indexed: 07/07/2024]
Abstract
Antimony (Sb) pollution has raised increasing public concerns and its rapid on-site screening is central for the risk assessment. Herein, we proposed two gel-based methods based on colorimetric diffusive equilibrium in thin films (DET) and surface-enhanced Raman scattering (SERS), for two-dimensional imaging and sensitive detection of Sb(III) by revisiting the phenylfluorone (PhF) complexation reaction. PhF was well dispersed in the polyvinyl alcohol (PVA) hydrogel and reacted with Sb(III) in the DET gel to form a strong PhF-Sb(III) complex. The distribution of Sb(III) was easily visualized at a submillimeter resolution using computer imaging densitometry, with a detection limit (LOD) of ∼100 nmol L-1. Field application in the Sb mine area reveals limited dissolved Sb(III) penetrating the redox barrier below the sediment-water interface by 20 mm in rivers and tailing pond sediments. To improve the detection sensitivity and apply the principle to trace Sb quantification, a SERS platform was established by anchoring PhF on the hydrogel-stabilized Ag nanoparticles via C-O-Ag bonding to specifically detect Raman-inactive Sb(III). Benefiting from the high SERS activity of PhF and enrichment ability of hydrogel, Sb(III) was quantified with a LOD of 1.2-10.7 nmol L-1 depending on the sample volume. The coexisting ions at a 100-fold higher concentration than Sb(III) resulted in only 3.3-10.4 % variation in SERS intensity, indicating a negligible interference on the SERS platform. The platform exhibited a RSD of 6.6-13.1 % and acceptable recoveries for various environmental matrices, highlighting its promise in on-site application.
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Affiliation(s)
- Kun Xu
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Junjie Ren
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Xiangcheng Shan
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Min Zhang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China.
| | - Chuanyong Jing
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China; 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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2
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Shvalya V, Olenik J, Vengust D, Zavašnik J, Štrbac J, Modic M, Baranov O, Cvelbar U. Nanosculptured tungsten oxide: High-efficiency SERS sensor for explosives tracing. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135171. [PMID: 39002481 DOI: 10.1016/j.jhazmat.2024.135171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024]
Abstract
The accurate and rapid identification of explosives and their toxic by-products is an important aspect of safety protocols, forensic investigations and pollution studies. Herein, surface-enhanced Raman scattering (SERS) is used to detect different explosive molecules using an improved substrate design by controllable oxidation of the tungsten surface and deposition of Au layers. The resulting furrow-like morphology formed at the intersection of the tungsten Wulff facets increases nanoroughness and improves the SERS response by over 300 % compared to the untreated surface. The substrate showed excellent reproducibility with a relative standard deviation of less than 15 % and a signal recovery of over 95 % after ultrafast Ar/O2 plasma cleanings. The detection limit for the "dried on a surface" measurement case was better than 10-8 M using the moving scanning regime and an acquisition time of 10 s, while for the "water droplets on a surface" scenario the LoD is 10-7, which is up to 2 orders of magnitude better than the UV-Vis spectroscopy method. The substrates were successfully used to classify the molecular fingerprints of HMX, Tetryl, TNB and TNT, demonstrating the efficiency of a sensor for label-free SERS screening in the practice of monitoring traces of explosives in the water medium.
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Affiliation(s)
- Vasyl Shvalya
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
| | - Jaka Olenik
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia; York Plasma Institute, School of Physics, Engineering & Technology, University of York, York YO10 5DD, UK.
| | - Damjan Vengust
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
| | - Janez Zavašnik
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
| | - Jelena Štrbac
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
| | - Martina Modic
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
| | - Oleg Baranov
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia; Plasma Laboratory, National Aerospace University, Kharkov, Ukraine.
| | - Uroš Cvelbar
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
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3
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Liu Y, Ge G, Liu H, Wang Y, Zhou P, Li B, Zhu G. Fast and eco-friendly synthesis of carbon dots from pinecone for highly effective detection of 2,4,6-trinitrophenol in environmental samples. ENVIRONMENTAL TECHNOLOGY 2024:1-12. [PMID: 38887014 DOI: 10.1080/09593330.2024.2367725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 05/08/2024] [Indexed: 06/20/2024]
Abstract
2,4,6-Trinitrophenol (TNP) has high explosive risks and biological toxicity, and there has been considerable concern over the determination of TNP. In the present work, fluorescent carbon dots (CDs) stemmed from a green carbon source of pinecone by the facile hydrothermal approach. A novel environment- friendly fluorescent probe was developed to efficiently detect TNP by using the obtained CDs with remarkable fluorescence stability. The fluorescent CDs exhibited obvious excitation dependence with the highest peaks for excitation and emission occurring at 321 and 411 nm, respectively. The fluorescence intensity is significantly reduced by TNP owing to the inner filter effect with the CDs. The probe exhibited good linearity with TNP concentrations in the range of 0.025-20 μg mL-1, and the limit of detection was as low as 8.5 ng mL-1. Additionally, the probe proved successful in sensing TNP quantitatively in actual environmental samples with satisfied recoveries of 95.6-99.6%. The developed fluorescent probe offered an environment-friendly, efficient, rapid, and reliable platform for detecting trace TNP in the environmental field.HighlightsNovel carbon dots were synthesised from green precursors of pineal powder.The highly effective quenching process was put down to the inner filter effect.The as-constructed fluorescent probe was successfully utilised for sensing 2,4,6-trinitrophenol in environmental samples.The proposed method was simple, rapid, efficient, economical, and eco-friendly.
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Affiliation(s)
- Yongli Liu
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Province's International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang, People's Republic of China
| | - Guobei Ge
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Province's International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang, People's Republic of China
| | - Huanjia Liu
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Province's International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang, People's Republic of China
| | - Yuxin Wang
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Province's International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang, People's Republic of China
| | - Penghui Zhou
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Province's International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang, People's Republic of China
| | - Bin Li
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Province's International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang, People's Republic of China
| | - Guifen Zhu
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Province's International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang, People's Republic of China
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4
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Jiang L, Liu H, Wang B, Zhang W, Wang J, Xiong Y. Selective SERS Detection of TATB Explosives Based on Hydroxy-Terminal Nanodiamond-Multilayer Graphene Substrate. ACS OMEGA 2024; 9:22166-22174. [PMID: 38799344 PMCID: PMC11112555 DOI: 10.1021/acsomega.4c00749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 05/29/2024]
Abstract
Selective surface-enhanced Raman scattering (SERS) detection of target explosives with good reproducibility is very important for monitoring soldiers' health and ecological environment. Here, the specific charge transfer pathway was constructed between a stable nanodiamond-multilayer graphene (MGD) film substrate and the target explosives. Two-step wet chemical oxidation methods of H2O2 (30%) and HNO3 (65%) solutions were used to regulate the terminal structure of MGD films. The experimental results showed that the hydroxyl (-OH) functional groups are successfully modified on the surface of MGD thin films, and the MGD-OH substrates having good selectivity for 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) explosive in mixed solutions of the TATB, 2,2-dinitroethene-1,1-diamine, 2,4,6-trinitrotoluene, and 1,3,5-trinitroperhydro-1,3,5-triazine explosives compared with MGD substrates were demonstrated. Finally, first-principles density functional theory simulations revealed that the SERS enhancement of the MGD-OH substrate is mainly attributed to the transferred electrons between the -NO2 groups of TATB and the -OH groups of the MGD-OH substrate.
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Affiliation(s)
- Lin Jiang
- State
Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, China
- School
of Materials & Chemistry, Southwest
University of Science & Technology, Mianyang 621010, China
| | - Huiqiang Liu
- School
of Materials & Chemistry, Southwest
University of Science & Technology, Mianyang 621010, China
| | - Bing Wang
- School
of Materials & Chemistry, Southwest
University of Science & Technology, Mianyang 621010, China
| | - Wen Zhang
- State
Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, China
| | - Jian Wang
- Joint
Laboratory for Extreme Conditions Matter Properties, School of Mathematics
and Physics, Southwest University of Science
and Technology, Mianyang 621010, Sichuan, China
| | - Ying Xiong
- State
Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, China
- School
of Materials & Chemistry, Southwest
University of Science & Technology, Mianyang 621010, China
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5
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Xu D, Su W, Luo Y, Wang Z, Yin C, Chen B, Zhang Y. Cellulose Nanofiber Films with Gold Nanoparticles Electrostatically Adsorbed for Facile Surface-Enhanced Raman Scattering Detection. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38657211 DOI: 10.1021/acsami.4c03255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Cellulose nanofiber (CNF) holds great promise in applications such as surface-enhanced Raman scattering (SERS), catalysis, esthesia, and detection. This study aimed to build novel CNF-based SERS substrates through a facile synthetic method. Citrate-reduced gold nanoparticles (AuNPs) were adsorbed on the cationized CNF surface due to electrostatic interactions, and uniform AuNPs@(2,3-epoxypropyl trimethylammonium chloride)EPTMAC@CNF flexible SERS substrates were prepared by a simple vacuum-assisted filtration method. The probe molecule methylene blue was chosen to assess the performance of the CNF-based SERS substrate with a sensitivity up to 10-9 M, superior signal reproducibility (relative standard deviation (RSD) = 4.67%), and storage stability (more than 30 days). Tensile strength tests indicated that the CNF-based films had good mechanical properties. In addition, CNF-based substrates can easily capture and visually identify microplastics in water. These results demonstrate the potential application of the flexible, self-assembled AuNPs@EPTMAC@CNF flexible SERS substrate for prompt and sensitive detection of trace substances.
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Affiliation(s)
- Dewen Xu
- College of Mechanics and Engineering Science, Hohai University, Changzhou 213022, China
- Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Wei Su
- College of Mechanics and Engineering Science, Hohai University, Changzhou 213022, China
| | - Yinlong Luo
- College of Mechanics and Engineering Science, Hohai University, Changzhou 213022, China
| | - Zhenfeng Wang
- College of Mechanics and Engineering Science, Hohai University, Changzhou 213022, China
| | - Cheng Yin
- College of Mechanics and Engineering Science, Hohai University, Changzhou 213022, China
| | - Bingyan Chen
- College of Mechanics and Engineering Science, Hohai University, Changzhou 213022, China
| | - Yunhai Zhang
- Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
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6
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Zheng C, Ling Y, Chen J, Yuan X, Li S, Zhang Z. Design of a versatile and selective electrochemical sensor based on dummy molecularly imprinted PEDOT/laser-induced graphene for nitroaromatic explosives detection. ENVIRONMENTAL RESEARCH 2023; 236:116769. [PMID: 37517500 DOI: 10.1016/j.envres.2023.116769] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/14/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
Considering the formidable explosive power and human carcinogenicity of nitroaromatic explosives, the implementation of an accurate and sensitive detection technology is imperative for ensuring public safety and monitoring post-blast environmental contamination. In the present work, a versatile and selective electrochemical sensor based on dummy molecularly imprinted poly (3,4-ethylenedioxythiophene)/laser-induced graphene (MIPEDOT/LIG) was successfully developed and the specific detection of multiple nitroaromatic explosives was realized in the single sensor. The accessible and nontoxic trimesic acid (TMA) and superior 3, 4-ethylenedioxythiophene (EDOT) were selected as the dummy-template and the functional monomer, respectively. The interaction between the functional monomer and the template, and the morphology, electrochemical properties and detection performance of the sensor were comprehensively investigated by ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy, cyclic voltammetry, and differential pulse voltammetry. Benefiting from the alliance of TMA and EDOT, the MIPEDOT/LIG sensor manifested outstanding selectivity and sensitivity for 2,4,6-trinitrotolueen (TNT), 2,4,6-trinitrophenol (TNP), 2,4-dinitrotoluene (DNT), 1,3,5-trinitrobenzene (TNB), 2,4-dinitrophenol (DNP), and 1,3-dinitrobenzene (DNB) (representative nitroaromatic explosives) with limits of determination of 1.95 ppb, 3.06 ppb, 2.49 ppb, 1.67 ppb, 1.94 ppb, and 4.56 ppb, respectively. The sensor also exhibited extraordinary reliability and convenience for environmental sample detection. Therefore, a perfect combination of versatility and selectivity in the MIPEDOT/LIG sensor was achieved. The findings of this work provide a new direction for the development of multi-target electrochemical sensors using a versatile dummy template for explosives detection.
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Affiliation(s)
- Chibin Zheng
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Yunhan Ling
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China.
| | - Jianyue Chen
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Xiaomin Yuan
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Shilin Li
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Zhengjun Zhang
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
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7
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Qin F, Liu R, Wu Q, Wang S, Liu F, Wei Q, Xu J, Luo Z. Fabrication of Ag-CaCO 3 Nanocomposites for SERS Detection of Forchlorfenuron. Molecules 2023; 28:6194. [PMID: 37687023 PMCID: PMC10489000 DOI: 10.3390/molecules28176194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/23/2023] [Accepted: 08/14/2023] [Indexed: 09/10/2023] Open
Abstract
In this study, Ag-CaCO3 nanocomposites were synthesized using silver nitrate as the precursor solution based on calcium carbonate nanoparticles (CaCO3 NPs). The synthesis involved the reaction of calcium lignosulphonate and sodium bicarbonate. The properties of Ag-CaCO3 nanocomposites were studied by various technologies, including an ultraviolet-visible spectrophotometer, a transmission electron microscope, and a Raman spectrometer. The results showed that Ag-CaCO3 nanocomposites exhibited a maximum UV absorption peak at 430 nm, the surface-enhanced Raman spectroscopy (SERS) activity of Ag-CaCO3 nanocomposites was evaluated using mercaptobenzoic acid (MBA) as the marker molecule, resulting in an enhancement factor of 6.5 × 104. Additionally, Ag-CaCO3 nanocomposites were utilized for the detection of forchlorfenuron. The results demonstrated a linear relationship in the concentration range of 0.01 mg/mL to 2 mg/mL, described by the equation y = 290.02x + 1598.8. The correlation coefficient was calculated to be 0.9772, and the limit of detection (LOD) was determined to be 0.001 mg/mL. These findings highlight the relatively high SERS activity of Ag-CaCO3 nanocomposites, making them suitable for analyzing pesticide residues and detecting toxic and harmful molecules, thereby contributing to environmental protection.
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Affiliation(s)
- Fangyi Qin
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Rongjun Liu
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Guangxi Colleges and Universities Key Laboratory for Efficient Use of Featured Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Qiong Wu
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Guangxi Colleges and Universities Key Laboratory for Efficient Use of Featured Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Shulong Wang
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Guangxi Colleges and Universities Key Laboratory for Efficient Use of Featured Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Fa Liu
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Guangxi Colleges and Universities Key Laboratory for Efficient Use of Featured Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Qingmin Wei
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Guangxi Colleges and Universities Key Laboratory for Efficient Use of Featured Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Jiayao Xu
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Guangxi Colleges and Universities Key Laboratory for Efficient Use of Featured Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Zhihui Luo
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Guangxi Colleges and Universities Key Laboratory for Efficient Use of Featured Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
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8
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Tatar AS, Boca S, Falamas A, Cuibus D, Farcău C. Self-assembled PVP-gold nanostar films as plasmonic substrates for surface-enhanced spectroscopies: influence of the polymeric coating on the enhancement efficiency. Analyst 2023; 148:3992-4001. [PMID: 37526256 DOI: 10.1039/d3an00682d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Colloidal nanoparticles exhibiting anisotropic morphologies are preferred in the structural design of spectroscopically active substrates due to the remarkable optical properties of this type of nano-object. In the particular case of star-like nanoparticles, their sharp tips can act as antennae for capturing and amplifying the incident light, as well as for enhancing the light emitted by nearby fluorophores or the scattering efficiency of Raman active molecules. In the current work, we aimed to implement such star-shaped nanoparticles in the fabrication of nanoparticle films and explore their use as solid plasmonic substrates for surface-enhanced optical spectroscopies. High-density, compact and robust self-assembled gold nanostar films were prepared by directly depositing them from aqueous colloidal suspension on polystyrene plates through convective self-assembly. We investigated the role of the polymeric coating, herein polyvinylpyrrolidone (PVP), in the particle assembly process, the resulting morphology and consequently, the plasmonic response of the obtained films. The efficacy of the plasmonic films as dual-mode surface-enhanced fluorescence (SEF) and surface-enhanced Raman scattering (SERS) substrates was evidenced by testing Nile Blue A (NB) and Rhodamine 800 (Rh800) molecular chromophores under visible (633 nm) versus NIR (785 nm) laser excitation. Steady-state and time-resolved fluorescence investigations highlight the fluorescence intensity and fluorescence lifetime modification effects. The experimental results were corroborated with theoretical modelling by finite-difference time-domain (FDTD) simulations. Furthermore, to prove the extended applicability of the proposed substrates in the detection of biologically relevant molecules, we tested their SERS efficiency for sensing metanephrine, a metabolite currently used for the biochemical diagnosis of neuroendocrine tumors, at concentration levels similar to other catecholamine metabolites.
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Affiliation(s)
- Andra-Sorina Tatar
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania.
| | - Sanda Boca
- Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian, 400271 Cluj-Napoca, Romania.
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania.
| | - Alexandra Falamas
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania.
| | - Denisa Cuibus
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania.
| | - Cosmin Farcău
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania.
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9
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Alizadeh N, Yoosefian J. Chemical reduction as a facile colorimetric approach for selective TNT detection by spectrophotometry and photothermal lens spectroscopy. Talanta 2023; 257:124334. [PMID: 36773511 DOI: 10.1016/j.talanta.2023.124334] [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: 11/09/2022] [Revised: 02/04/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023]
Abstract
In this study, the simple determination of TNT is achieved through the vivid stable red color products generated after chemically reduction by NaBH4 as a common and accessible reducing/colorimetric reagent. Some other nitroaromatics were impressed under reduction reaction and led to the colorful products. The color of these reduced nitroaromatics were unstable and approximately vanished after some few minutes which ameliorated the selectivity in TNT determination. Utilizing the time-dependent selectivity, the method was applied specifically for discriminating of TNT from other nitroaromatic compounds (NACs). UV-vis spectrophotometry and photothermal lens spectrometry were employed as detection techniques. The former was simpler and more available in various laboratories while the latter provides higher sensitivity. It was revealed that the photothermal lens responses were linear from 2.0 to 55.0 nM with a limit of detection (LOD) of about 0.8 nM. The LOD of the photothermal lens measurement were found to be 241 times lower than that of the UV-vis spectrophotometry in TNT quantification. The evolved method was successfully carried out for TNT vapor determination after trapping into the colorimetric reagent. The recoveries and relative standard deviations (RSD, n = 3) calculated for 3 gas samples were ≥91% and ≤7%, respectively.
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Affiliation(s)
- Naader Alizadeh
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
| | - Javad Yoosefian
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
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10
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Zając MA, Budner B, Liszewska M, Bartosewicz B, Gutowski Ł, Weyher JL, Jankiewicz BJ. SERS performance of GaN/Ag substrates fabricated by Ag coating of GaN platforms. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:552-564. [PMID: 37179592 PMCID: PMC10167859 DOI: 10.3762/bjnano.14.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023]
Abstract
The results of comparative studies on the fabrication and characterization of GaN/Ag substrates using pulsed laser deposition (PLD) and magnetron sputtering (MS) and their evaluation as potential substrates for surface-enhanced Raman spectroscopy (SERS) are reported. Ag layers of comparable thicknesses were deposited using PLD and MS on nanostructured GaN platforms. All fabricated SERS substrates were examined regarding their optical properties using UV-vis spectroscopy and regarding their morphology using scanning electron microscopy. SERS properties of the fabricated GaN/Ag substrates were evaluated by measuring SERS spectra of 4-mercaptobenzoic acid molecules adsorbed on them. For all PLD-made GaN/Ag substrates, the estimated enhancement factors were higher than for MS-made substrates with a comparable thickness of the Ag layer. In the best case, the PLD-made GaN/Ag substrate exhibited an approximately 4.4 times higher enhancement factor than the best MS-made substrate.
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Affiliation(s)
- Magdalena A Zając
- Institute of High-Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
- Faculty of Advanced Technologies and Chemistry, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Bogusław Budner
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Malwina Liszewska
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Bartosz Bartosewicz
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Łukasz Gutowski
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Jan L Weyher
- Institute of High-Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
| | - Bartłomiej J Jankiewicz
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
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11
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Yang L, Tian M, Qin J, Lu Y, Yu Q, Han J. A Luminescent Metal‐Organic Framework with Boosted Picric Acid Fluorescence Detection Performance via a Complementary Capture‐Quench Mechanism. Eur J Inorg Chem 2023. [DOI: 10.1002/ejic.202300089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Li Yang
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Momang Tian
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Jian Qin
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Yuewen Lu
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Qian Yu
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Ji‐Min Han
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
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12
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Ding Z, Wang Y, Zhou W, Shui Y, Zhu Z, Zhang M, Huang Y, Jiang C, Li J, Wu Y. TiO 2 compact layer induced charge transfer enhancement in a three-dimensional TiO 2-Ag array SERS substrate for quantitative and multiplex analysis. RSC Adv 2023; 13:8270-8280. [PMID: 36926018 PMCID: PMC10012413 DOI: 10.1039/d3ra00094j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/07/2023] [Indexed: 03/17/2023] Open
Abstract
A highly sensitive and uniform surface-enhanced Raman scattering (SERS) substrate is the guarantee for reliable quantitative analysis. Herein, a three-dimensional TiO2-Ag SERS substrate was prepared by growing a TiO2 nanorods (NRs) array on a TiO2 compact layer (c-TiO2), followed by modification with Ag nanoparticles (AgNPs). The synergy between the c-TiO2, semiconductor TiO2 NRs and the plasmonic AgNPs collaboratively endowed it with high sensitivity, in which c-TiO2 effectively blocked the recombination of electrons and holes, and the charge transfer enhancement contributed 10-fold improvement over that without the c-TiO2 substrate. Besides the high sensitivity, the TiO2-Ag hybrid array SERS substrate also showed quantitative and multi-component detecting capability. The limit of detection (LOD) for crystal violet (CV) was determined to be 10-9 M even with a portable Raman instrument. The TiO2-Ag composite structure was extended to detect organic pesticides (thiram, triazophos and fonofos), and the LODs for thiram, triazophos and fonofos were measured to be 10-7 M, 10-7 M and 10-6 M, respectively. In addition, the realistic simulation detecting pesticide residues for a real sample of dendrobium was demonstrated. The sensitive, quantitative and multiplex analysis of the TiO2-Ag hybrid array substrate indicated its great potential in the rapid detection of pesticide residues in real samples.
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Affiliation(s)
- Zhuang Ding
- School of Chemistry and Chemical Engineering, Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Yaru Wang
- School of Chemistry and Chemical Engineering, Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Wanpeng Zhou
- School of Chemistry and Chemical Engineering, Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Yanna Shui
- School of Chemistry and Chemical Engineering, Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Zhengdong Zhu
- School of Chemistry and Chemical Engineering, Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Maofeng Zhang
- School of Chemistry and Chemical Engineering, Hefei University of Technology 193 Tunxi Road Hefei 230009 China
| | - Youju Huang
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 311121 China
| | - Changlong Jiang
- Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei Anhui 230031 China
| | - Jianhua Li
- Anhui Topway Testing Services Co. Ltd. 18 Rixin Road, Xuancheng Economic and Technological Development Zone 242000 China
| | - Yucheng Wu
- School of Materials Science and Engineering, Hefei University of Technology 193 Tunxi Road Hefei 230009 China
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13
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Awasthi V, Malik P, Goel R, Srivastava P, Dubey SK. Nanogap-Rich Surface-Enhanced Raman Spectroscopy-Active Substrate Based on Double-Step Deposition and Annealing of the Au Film over the Back Side of Polished Si. ACS APPLIED MATERIALS & INTERFACES 2023; 15:10250-10260. [PMID: 36757206 DOI: 10.1021/acsami.2c21378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a highly sensitive and rapid detection technique that is used for detection of various analytes in trace quantities. We present a sensitive, large-area, and nanogap-rich SERS-active substrate by altering a thin gold (Au) film on the unpolished side of a single-side polished silicon wafer by repeated thermal deposition and annealing in an argon environment. The repeated thermal deposition and annealing process was compared on both sides of a one-side-polished silicon wafer; however, the rear side (etched/unpolished side) demonstrated a more enhanced Raman signal owing to the larger effective area. The proposed substrate can be fabricated easily, having a high density of hotspots distributed uniformly all over the substrate. This ensures easy, rapid, and sensitive detection of analytes with a high degree of reproducibility, repeatability, and acceptable uniformity. The optimized substrate shows a high degree of stability with time when exposed to the ambient environment for a longer duration of 148 days. The reported substrate can detect up to 10-11 M concentrations of 2,4,6-trinitrotoluene (TNT) and 2,4-dinitrotoluene (DNT), with limits of detection (LODs) of 1.22 and 1.26 ng/L, respectively. This work not only presents the efficient and sensitive SERS-active substrate but also shows the advantages of using the rear side of a one-side-polished silicon substrate as a SERS-active chip.
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Affiliation(s)
- Vimarsh Awasthi
- SeNSE Centre, Indian Institute of Technology Delhi, Delhi 110016, India
| | - Pariksha Malik
- Nanostech Laboratory, Department of Physics, Indian Institute of Technology Delhi, Delhi 110016, India
| | - Richa Goel
- SeNSE Centre, Indian Institute of Technology Delhi, Delhi 110016, India
| | - Pankaj Srivastava
- Nanostech Laboratory, Department of Physics, Indian Institute of Technology Delhi, Delhi 110016, India
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14
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Tran HN, Nguyen NB, Ly NH, Joo SW, Vasseghian Y. Core-shell Au@ZIF-67-based pollutant monitoring of thiram and carbendazim pesticides. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120775. [PMID: 36455771 DOI: 10.1016/j.envpol.2022.120775] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/18/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
A sensitive and stable substrate plays a vital role in the Raman spectroscopic techniques as an analytical method for detecting pesticides effectively from the environment. Enhancing signals from nanoparticles are weak and inconsistent in repeatability since analytes tend to degrade quickly under laser exposure. Herein, a novel substrate of Au@ZIF-67 is prepared on octahedral AuNPs by trapping pesticide molecules with small three-dimensional volumes by the flexibility of ZIF-67 for rapid detection with high sensitivity and stability. The two types of thiram and carbendazim pesticides, which are environmental pollutants that affect biodiversity, were successfully absorbed in Au@ZIF-67 nanostructures by adsorption-desorption equilibrium for analytical purposes in Raman spectroscopy. Spectra calculations of the thiram and carbendazim molecules on 8 atoms of Au using DFT were compared with the experimental data. The SERS enhancement factors for thiram and carbendazim were estimated to be 1.91 × 108 and 3.12 × 108, respectively, with the LOD values of trace amounts of ∼10-10 mol L-1. The novel substrate of Au@ZIF-67 is a propitious platform for detecting thiram and carbendazim in trace amounts, providing a helpful strategy for detecting residues with high performance in the environment at the laboratory and practical scales.
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Affiliation(s)
- Huynh Nhu Tran
- Department of Chemistry, Soongsil University, Seoul, 06978, South Korea
| | | | - Nguyễn Hoàng Ly
- Department of Chemistry, Gachon University, Seongnam, 13120, South Korea
| | - Sang-Woo Joo
- Department of Chemistry, Soongsil University, Seoul, 06978, South Korea.
| | - Yasser Vasseghian
- Department of Chemistry, Soongsil University, Seoul, 06978, South Korea; School of Engineering, Lebanese American University, Byblos, Lebanon; University Centre for Research & Development, Department of Mechanical Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
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15
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Huang WC, Chen HR. Application of Cotton Swab-Ag Composite as Flexible Surface-Enhanced Raman Scattering Substrate for DMMP Detection. Molecules 2023; 28:molecules28020520. [PMID: 36677579 PMCID: PMC9860652 DOI: 10.3390/molecules28020520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
It is both important and required to quickly and accurately detect chemical warfare agents, such as the highly toxic nerve agent sarin. Surface-enhanced Raman scattering (SERS) has received considerable attention due to its rapid results, high sensitivity, non-destructive data acquisition, and unique spectroscopic fingerprint. In this work, we successfully prepared SERS cotton swabs (CSs) for the detection of the sarin simulant agent dimethyl methyl phosphonate (DMMP) by anchoring N1-(3-trimethoxysilylpropyl) diethylenetriamine (ATS)/silver nanoparticle (AgNP) nanocomposites on CSs using ATS as the stabilizer and coupling agent. Simultaneously, the binding mode and reaction mechanics between the AgNP, ATS, and CS were confirmed by XPS. The modified CSs exhibited good uniformity, stability, and adsorption capability for SERS measurements, enabling the adsorption and detection of DMMP residue from an irregular surface via a simple swabbing process, with a detection limit of 1 g/L. The relative standard deviations (RSDs) of RSD710 = 5.6% had high reproducibility. In this research, the fabrication method could easily be extended to other cellulose compounds, such as natural fibers and paper. Furthermore, the versatile SERS CSs can be used for the on-site detection of DMMP, particularly in civil and defense applications, to guarantee food security and the health of the population.
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16
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Investigation of the adsorption of pymetrozine on the Au@AgNPs surface and its application in the rapid detection of pymetrozine residues in apple. Food Chem X 2022; 16:100487. [DOI: 10.1016/j.fochx.2022.100487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 10/09/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022] Open
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17
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Santonocito R, Tuccitto N, Cantaro V, Carbonaro AB, Pappalardo A, Greco V, Buccilli V, Maida P, Zavattaro D, Sfuncia G, Nicotra G, Maccarrone G, Gulino A, Giuffrida A, Trusso Sfrazzetto G. Smartphone-Assisted Sensing of Trinitrotoluene by Optical Array. ACS OMEGA 2022; 7:37122-37132. [PMID: 36312398 PMCID: PMC9609071 DOI: 10.1021/acsomega.2c02958] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Here we report the design and fabrication of an array-based sensor, containing functionalized Carbon Dots, Bodipy's and Naphthalimide probes, that shows high fluorescence emissions and sensitivity in the presence of low amounts of TNT explosive. In particular, we have fabricated the first sensor device based on an optical array for the detection of TNT in real samples by using a smartphone as detector. The possibility to use a common smartphone as detector leads to a prototype that can be also used in a real-life field application. The key benefit lies in the possibility of even a nonspecialist operator in the field to simply collect and send data (photos) to the trained artificial intelligence server for rapid diagnosis but also directly to the bomb disposal unit for expert evaluation. This new array sensor contains seven different fluorescent probes that are able to interact via noncovalent interactions with TNT. The interaction of each probe with TNT has been tested in solution by fluorescence titrations. The solid device has been tested in terms of selectivity and linearity toward TNT concentration. Tests performed with other explosives and other nitrogen-based analytes demonstrate the high selectivity for TNT molecules, thus supporting the reliability of this sensor. In addition, TNT can be detected in the range of 98 ng∼985 μg, with a clear different response of each probe to the different amounts of TNT.
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Affiliation(s)
- Rossella Santonocito
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
| | - Nunzio Tuccitto
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
- Laboratory
for Molecular Surfaces and Nanotechnology, CSGI, 95125Catania, Italy
| | - Valentina Cantaro
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
| | | | - Andrea Pappalardo
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
- National
Interuniversity Consortium for Materials Science and Technology (I.N.S.T.M.)Research Unit of Catania, 95125Catania, Italy
| | - Valentina Greco
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
| | - Valeria Buccilli
- Reparto
Carabinieri Investigazioni Scientifiche Messina, Via Monsignor D’Arrigo 5, 98122Messina, Italy
| | - Pietro Maida
- Reparto
Carabinieri Investigazioni Scientifiche Messina, Via Monsignor D’Arrigo 5, 98122Messina, Italy
| | - Davide Zavattaro
- Reparto
Carabinieri Investigazioni Scientifiche Messina, Via Monsignor D’Arrigo 5, 98122Messina, Italy
| | - Gianfranco Sfuncia
- Consiglio
Nazionale delle Ricerche, Istituto per la
Microelettronica e Microsistemi, I-95121Catania, Italy
| | - Giuseppe Nicotra
- Consiglio
Nazionale delle Ricerche, Istituto per la
Microelettronica e Microsistemi, I-95121Catania, Italy
| | - Giuseppe Maccarrone
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
| | - Antonino Gulino
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
- National
Interuniversity Consortium for Materials Science and Technology (I.N.S.T.M.)Research Unit of Catania, 95125Catania, Italy
| | - Alessandro Giuffrida
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
| | - Giuseppe Trusso Sfrazzetto
- Department
of Chemical Sciences, University of Catania, viale A. Doria 6, 95100Catania, Italy
- National
Interuniversity Consortium for Materials Science and Technology (I.N.S.T.M.)Research Unit of Catania, 95125Catania, Italy
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18
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Chen H, Liu X, Zhang Q, Li P, Wu W. Ultrastable Water-dispersible One-dimensional Gold Nanoparticles@cellulose Nanocrystal. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Chen Z, Lu S, Zhang Z, Huang X, Zhao H, Wei J, Li F, Yuan K, Su L, Xiong Y. Green photoreduction synthesis of dispersible gold nanoparticles and their direct in situ assembling in multidimensional substrates for SERS detection. Mikrochim Acta 2022; 189:275. [PMID: 35829782 DOI: 10.1007/s00604-022-05379-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 06/26/2022] [Indexed: 11/26/2022]
Abstract
Gold nanoparticles (AuNPs) and their composites have been applied in surface-enhanced Raman scattering (SERS) detection methods, owing to their stable and excellent surface plasmon resonance. Unfortunately, methods for synthesizing AuNPs often require harsh conditions and complicated external steps. Additionally, removing residual surfactants or unreacted reductants is critical for improving the sensitivity of SERS detection, especially when employing AuNPs-assembled multidimensional substrates. In this study, we propose a simple and green method for AuNPs synthesis via photoreduction, which does not require external surfactant additives or stabilizers. All the processes were completed within 20 min. Along this way, only methanol was employed as the electron acceptor. Based on this photoreduction synthesis strategy, AuNPs can be directly and circularly assembled in situ in multidimensional substrates for SERS detection. The removal of residual methanol was easy because of its low boiling point. This strategy was employed for the preparation of three different dimensional SERS substrates: filter paper@AuNPs, g-C3N4@AuNPs, and MIL-101(Cr)@AuNPs. The limit of detection of filter paper@AuNPs for thiabendazole SERS detection was 1.0 × 10-7 mol/L, while the limits of detection of g-C3N4@AuNPs and MIL-101(Cr)@AuNPs for malachite green SERS detection were both 5.0 × 10-11 mol/L. This strategy presents potential in AuNP doping materials and SERS detection.
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Affiliation(s)
- Zhengyi Chen
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China.
| | - Shengyong Lu
- College of Food and Bioengineering, Hezhou University, Hezhou, 542899, People's Republic of China
| | - Zhi Zhang
- College of Food and Bioengineering, Hezhou University, Hezhou, 542899, People's Republic of China
| | - Xuemei Huang
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Hao Zhao
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Jiaxin Wei
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Fengling Li
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Kunting Yuan
- Capital Construction Department, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Linjing Su
- College of Food and Bioengineering, Hezhou University, Hezhou, 542899, People's Republic of China.
| | - Yuhao Xiong
- College of Food and Bioengineering, Hezhou University, Hezhou, 542899, People's Republic of China.
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20
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An ultrasensitive and dual-recognition SERS biosensor based on Fe3O4@Au-Teicoplanin and aptamer functionalized Au@Ag nanoparticles for detection of Staphylococcus aureus. Talanta 2022; 250:123648. [DOI: 10.1016/j.talanta.2022.123648] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 12/30/2022]
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21
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Zhang Q, Zhang Y, Chen H, Zhang L, Li P, Xiao H, Wu W. One-dimensional nanohybrids based on cellulose nanocrystals and their SERS performance. Carbohydr Polym 2022; 284:119140. [DOI: 10.1016/j.carbpol.2022.119140] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 12/28/2021] [Accepted: 01/10/2022] [Indexed: 12/19/2022]
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22
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Su D, Zhang XY, Chen XY, Wang SJ, Wan QD, Zhang T. Centrifugation-induced assembly of dense hotspots based SERS substrate for enhanced Raman scattering and quenched fluorescence. NANOTECHNOLOGY 2022; 33:235304. [PMID: 35196262 DOI: 10.1088/1361-6528/ac57d3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Hanging (aggregation stuck to the centrifugal tube) in the centrifugation process is always regarded as an unwanted condition. In this work, we develop a centrifugation-induced assembly of dense hotspots surface-enhanced Raman scattering (SERS) substrates from the hanging phenomenon. We discovered interesting sintering-resistant behavior (maintain the sharp nanotip features) of star-like Au nanoparticles after centrifugation-induced assembly, which is in stark contrast with the sintering phenomenon of sphere-like nanoparticles. We also found that one side of centrifugal-induced Au assemblies is two-dimensional (2D, root mean square (rms) roughness down to ∼10 nm), while the other is three-dimensional (3D, rms roughness more than 100 nm). The close-packed feature of the Au assemblies makes them candidates as dense hotspots based SERS substrates. Through systematic investigation of SERS performance of centrifugation-induced assemblies with different morphology (star-like and sphere-like, 2D and 3D), it was found that the 3D side of star-like Au nanoparticles assembly exhibits the highest SERS enhancement together with quenched fluorescence. The star-like SERS substrate also displays high detection uniformity (with 10-7M Rhodamine 6G) and a low detection limit (down to 10-12M Rhodamine 6G).
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Affiliation(s)
- Dan Su
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
- Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology, Ministry of Education, School of Instrument Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Xiao-Yang Zhang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
- Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Southeast University Suzhou Campus, Suzhou 215123, People's Republic of China
| | - Xia-Yao Chen
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Shan-Jiang Wang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Qing-Dian Wan
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Tong Zhang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
- Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology, Ministry of Education, School of Instrument Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
- Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Southeast University Suzhou Campus, Suzhou 215123, People's Republic of China
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23
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Wu J, Xi J, Chen H, Li S, Zhang L, Li P, Wu W. Flexible 2D nanocellulose-based SERS substrate for pesticide residue detection. Carbohydr Polym 2022; 277:118890. [PMID: 34893292 DOI: 10.1016/j.carbpol.2021.118890] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/24/2021] [Accepted: 11/10/2021] [Indexed: 12/17/2022]
Abstract
Nanocellulose holds considerable promise as an effective surface-enhanced Raman scattering (SERS) substrate for sensitive detection of trace targets. Flexible and high-sensitivity two-dimensional (2D) SERS substrates based on nanocrystalline cellulose (CNC) film were successfully developed via self assembly of two plasma nanoparticles: gold nanoflowers (AuNFs) and silver-coated gold nanocubes (Au@AgNCs). The loading process allows the precise control of nanoparticle distribution density and uniformity on CNC film, which are closely related to the plasma coupling effect between particles. The obtained CNC/Au@AgNC flexible two-dimensional substrate could sensitively detect pesticide residues on apple surface, and the detection limits (LOD) of dimethoate and acetamiprid were 4.1 and 10.7 μg/L, respectively. In addition, Raman signal intensity showed a good linear relationship with pesticide concentration in the range of 10-100 μg/L, which provided great potential for high sensitivity and field detection of dangerous targets.
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Affiliation(s)
- Jingjing Wu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Xi
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Haibo Chen
- School of Electronic and Information Engineering, Soochow University, Suzhou 215000, Jiangsu, China
| | - Sijie Li
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lei Zhang
- Key Laboratory for Organic Electronics and Information, National Jiangsu Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Peng Li
- School of Electronic and Information Engineering, Soochow University, Suzhou 215000, Jiangsu, China
| | - Weibing Wu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
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24
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Lu X, Wang H, He Y. Controllable Synthesis of
Silicon‐Based
Nanohybrids for Reliable
Surface‐Enhanced
Raman Scattering Sensing. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xing Lu
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu 215123 China
| | - Houyu Wang
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu 215123 China
| | - Yao He
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu 215123 China
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25
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Liu B, Zheng S, Li H, Xu J, Tang H, Wang Y, Wang Y, Sun F, Zhao X. Ultrasensitive and facile detection of multiple trace antibiotics with magnetic nanoparticles and core-shell nanostar SERS nanotags. Talanta 2022; 237:122955. [PMID: 34736680 DOI: 10.1016/j.talanta.2021.122955] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 01/13/2023]
Abstract
Ultrasensitive, multiplex, rapid, and accurate quantitative determination of trace antibiotics remains a challenging issue, which is of importance to public health and safety. Herein, we presented a multiplex strategy based on magnetic nanoparticles and surface-enhanced Raman scattering (SERS) nanotags for simultaneous detection of chloramphenicol (CAP) and tetracycline (TTC). In practice, SERS nanotags based on Raman reporter probes (RRPs) encoded gold-silver core-shell nanostars were used as detection labels for identifying different types of antibiotics, and the magnetic nanoparticles could be separated simply by magnetic force, which significantly improves the detection efficiency, reduces the analysis cost, and simplifies the operation. Our results demonstrate that the as-proposed assay possesses the capacities of high sensitivity and multiplexing with the limits of detection (LODs) for CAP and TTC of 159.49 and 294.12 fg mL-1, respectively, as well as good stability and reproducibility, and high selectivity and reliability. We believe that this strategy holds a great promising perspective for the detection of trace amounts of antibiotics in microsystems, which is crucial to our life. Additionally, the assay can also be used to detect other illegal additives by altering the appropriate antibodies or aptamers.
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Affiliation(s)
- Bing Liu
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong, 226001, China.
| | - Shiya Zheng
- Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Haitao Li
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong, 226001, China
| | - Junjie Xu
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong, 226001, China
| | - Hanyu Tang
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong, 226001, China
| | - Yi Wang
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China; Innovation Center in Zhejiang University, State Key Laboratory of Component-Based Chinese Medicine, Hangzhou, 310058, China
| | - Yingchao Wang
- Innovation Institute for Artificial Intelligence in Medicine of Zhejiang University, Hangzhou, 310018, China
| | - Fei Sun
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong, 226001, China.
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China; Southeast University Shenzhen Research Institute, Shenzhen, 518000, China.
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Pragya, Saini V, Rangan K, Khungar B. A pyrazinium-based fluorescent chemosensor for the selective detection of 2,4,6-trinitrophenol in an aqueous medium. NEW J CHEM 2022. [DOI: 10.1039/d2nj02999e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent pyrazinium-based chemosensor has been synthesized, characterized, and employed for the selective detection of 2,4,6-trinitrophenol in an aqueous medium.
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Affiliation(s)
- Pragya
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Vaishali Saini
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Secunderabad, Telangana, 500078, India
| | - Bharti Khungar
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
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27
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Shang Q, Tan X, Chen M, Han S, Yu T. Controllable synthesis of the homogeneous 3D Ag nanoflowers on FTO substrate for ultra-sensitive SERS detection. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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28
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Sinha RK. A highly sensitive surface-enhanced Raman scattering substrate prepared on a hydrophobic surface using controlled evaporation. RSC Adv 2021; 12:331-337. [PMID: 35424501 PMCID: PMC8978651 DOI: 10.1039/d1ra07871b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/15/2021] [Indexed: 11/21/2022] Open
Abstract
In the present work, we report the fabrication of a surface-enhanced Raman spectroscopy (SERS) substrate on a simple and easily fabricable hydrophobic surface. The substrates are prepared by slow and fast evaporation of a droplet of silver nanoparticle suspension in water. The corresponding identifiers for two substrates are “s_evp” and “f_evp” respectively. It is found that the dried spot size is small on s_evp compared to that on f_evp. This also minimizes the coffee stain effect and enriches the spot in a better way on s_evp compared to f_evp. Consequently, using SERS experimentation on our lab-built setup, concentration as low as 2.5*10−12 M of rhodamine 6G molecules was detected on s_evp compared to 2.5 × 10−10 M on f_evp. The proposed s_evp SERS substrate is much easier to fabricate and easy to use compared to super-hydrophobic SERS substrates. In the present work, we report the fabrication of a surface-enhanced Raman spectroscopy (SERS) substrate on a simple and easily fabricable hydrophobic surface.![]()
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Affiliation(s)
- Rajeev K Sinha
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education Manipal-576104 Karnataka India
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29
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Abstract
Recent global warming has resulted in shifting of weather patterns and led to intensification of natural disasters and upsurges in pests and diseases. As a result, global food systems are under pressure and need adjustments to meet the change—often by pesticides. Unfortunately, such agrochemicals are harmful for humans and the environment, and consequently need to be monitored. Traditional detection methods currently used are time consuming in terms of sample preparation, are high cost, and devices are typically not portable. Recently, Surface Enhanced Raman Scattering (SERS) has emerged as an attractive candidate for rapid, high sensitivity and high selectivity detection of contaminants relevant to the food industry and environmental monitoring. In this review, the principles of SERS as well as recent SERS substrate fabrication methods are first discussed. Following this, their development and applications for agrifood safety is reviewed, with focus on detection of dye molecules, melamine in food products, and the detection of different classes of pesticides such as organophosphate and neonicotinoids.
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30
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Guo J, Xu Y, Fu C, Guo L. Facial Fabrication of Large-Scale SERS-Active Substrate Based on Self-Assembled Monolayer of Silver Nanoparticles on CTAB-Modified Silicon for Analytical Applications. NANOMATERIALS 2021; 11:nano11123250. [PMID: 34947599 PMCID: PMC8708957 DOI: 10.3390/nano11123250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022]
Abstract
Surface-enhanced Raman spectroscopy (SERS) has been proven to be a promising analytical technique with sensitivity at the single-molecule level. However, one of the key problems preventing its real-world application lies in the great challenges that are encountered in the preparation of large-scale, reproducible, and highly sensitive SERS-active substrates. In this work, a new strategy is developed to fabricate an Ag collide SERS substrate by using cetyltrimethylammonium bromide (CTAB) as a connection agent. The developed SERS substrate can be developed on a large scale and is highly efficient, and it has high-density “hot spots” that enhance the yield enormously. We employed 4-methylbenzenethiol(4-MBT) as the SERS probe due to the strong Ag–S linkage. The SERS enhancement factor (EF) was calculated to be ~2.6 × 106. The efficacy of the proposed substrate is demonstrated for the detection of malachite green (MG) as an example. The limit of detection (LOD) for the MG assay is brought down to 1.0 × 10−11 M, and the relative standard deviation (RSD) for the intensity of the main Raman vibration modes (1620, 1038 cm−1) is less than 20%.
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Affiliation(s)
- Juanjuan Guo
- College of Oceanology and Food Sciences, Quanzhou Normal University, Quanzhou 362000, China;
| | - Yang Xu
- College of Physics & Information Engineering, Quanzhou Normal University, Quanzhou 362000, China;
| | - Caili Fu
- National University of Singapore (Suzhou) Research Institute, No. 377 Linquan Street, Suzhou Industrial Park, Suzhou 215128, China;
| | - Longhua Guo
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
- Correspondence:
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31
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Chen Q, Qin L, Shi C, Kang SZ, Li X. A stable and plug-and-play aluminium/titanium dioxide/metal-organic framework/silver composite sheet for sensitive Raman detection and photocatalytic removal of 4-aminothiophenol. CHEMOSPHERE 2021; 282:131000. [PMID: 34111640 DOI: 10.1016/j.chemosphere.2021.131000] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/29/2021] [Accepted: 05/23/2021] [Indexed: 06/12/2023]
Abstract
The sensitive detection and rapid removal of 4-aminothiophenol (4-ATP, a poisonous pesticide) demand special design to potential substrates. Herein, a metal-organic framework (ZIF-8) and Ag nanoparticles were fabricated one by one on the TiO2 coated Al sheet, and thus the Al-TiO2-ZIF-8-Ag sheet with sandwich structure was successfully synthesized. The cost-effective Al-TiO2-ZIF-8-Ag sheet (3.7 wt% Ag) possessed a low detection concentration of 1 × 10-9 M towards 4-ATP, and surface-enhanced Raman scattering (SERS) analytical enhanced factor (AEF) of the Al-TiO2-ZIF-8-Ag was 2.6 × 106, which was higher than other similar substrates. Furthermore, 4-ATP can be selectively and repeatedly detected on the Al-TiO2-ZIF-8-Ag even through it was in real samples. It indicated that the Al-TiO2-ZIF-8-Ag was a very active and stable SERS materials for the monitoring of 4-ATP. Importantly, the substrate exhibited faster and more efficient photocatalytic activity for 4-ATP degradation. The SERS and photocatalytic mechanisms of 4-ATP on the Al-TiO2-ZIF-8-Ag substrate were proposed. The cost-effective Al-TiO2-ZIF-8-Ag sheet with double function is plug-and-play, and could be used in the detection and treatment of pollutants in wastewater.
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Affiliation(s)
- Qian Chen
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai, 201418, China
| | - Lixia Qin
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai, 201418, China
| | - Changli Shi
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai, 201418, China
| | - Shi-Zhao Kang
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai, 201418, China
| | - Xiangqing Li
- School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai, 201418, China.
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32
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Yildirim B, Cole JM. Bayesian Particle Instance Segmentation for Electron Microscopy Image Quantification. J Chem Inf Model 2021; 61:1136-1149. [PMID: 33682402 PMCID: PMC8041280 DOI: 10.1021/acs.jcim.0c01455] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Indexed: 11/29/2022]
Abstract
Automating the analysis portion of materials characterization by electron microscopy (EM) has the potential to accelerate the process of scientific discovery. To this end, we present a Bayesian deep-learning model for semantic segmentation and localization of particle instances in EM images. These segmentations can subsequently be used to compute quantitative measures such as particle-size distributions, radial- distribution functions, average sizes, and aspect ratios of the particles in an image. Moreover, by making use of the epistemic uncertainty of our model, we obtain uncertainty estimates of its outputs and use these to filter out false-positive predictions and hence produce more accurate quantitative measures. We incorporate our method into the ImageDataExtractor package, as ImageDataExtractor 2.0, which affords a full pipeline to automatically extract particle information for large-scale data-driven materials discovery. Finally, we present and make publicly available the Electron Microscopy Particle Segmentation (EMPS) data set. This is the first human-labeled particle instance segmentation data set, consisting of 465 EM images and their corresponding semantic instance segmentation maps.
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Affiliation(s)
- Batuhan Yildirim
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, U.K.
- ISIS
Neutron and Muon Source, STFC Rutherford
Appleton Laboratory, Didcot, Oxfordshire OX11 OQX, U.K.
- Research
Complex at Harwell, Rutherford Appleton
Laboratory, Didcot, Oxfordshire OX11 OQX, U.K.
| | - Jacqueline M. Cole
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, U.K.
- ISIS
Neutron and Muon Source, STFC Rutherford
Appleton Laboratory, Didcot, Oxfordshire OX11 OQX, U.K.
- Research
Complex at Harwell, Rutherford Appleton
Laboratory, Didcot, Oxfordshire OX11 OQX, U.K.
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0AS, U.K.
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33
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Hu S, Kang H, Gu F, Wang C, Cheng S, Gong W, Wang L, Gu B, Yang Y. Rapid Detection Method for Pathogenic Candida Captured by Magnetic Nanoparticles and Identified Using SERS via AgNPs . Int J Nanomedicine 2021; 16:941-950. [PMID: 33603361 PMCID: PMC7884937 DOI: 10.2147/ijn.s285339] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/19/2021] [Indexed: 01/21/2023] Open
Abstract
Purpose Candidemia infection is common in the clinic and has a high mortality rate. Candida albicans, Candida tropicalis, and Candida krusei are very important and common pathogenic species. Candida is difficult to isolate from clinical samples and culture, and immunological detection cannot distinguish these related strains. Furthermore, Candida has a complex cell wall, which causes difficulties in the extraction of DNA for nucleic acid detection. The purpose of this study was to establish a protocol for the direct identification of Candida from serum. Materials and Methods We synthesized Fe3O4@PEI (where PEI stands for polyethylenimine) magnetic nanoparticles to capture Candida and prepared positively charged silver nanoparticles (AgNPs+) as the substrate for surface-enhanced Raman scattering (SERS). Candida was directly identified from serum by SERS detection. Results Orthogonal partial least squares discriminant analysis (OPLS-DA) was used as the multivariate analysis tool. Principal component analysis confirmed that this method can clearly distinguish common Candida. After 10-fold cross-validation, the accuracy of training data in this model was 100% and the accuracy of test data was 99.8%, indicating that the model has good classification ability. Conclusion The detection could be completed within 40 minutes using Fe3O4@PEI and AgNPs+ prepared in advance. This is the first time that Fe3O4@PEI was used in the detection of Candida by SERS. We report the first rapid method to identify fungi directly from serum without breaking the cell wall to extract DNA from the fungi.
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Affiliation(s)
- Shan Hu
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Beijing, 100850, People's Republic of China.,Department of Laboratory Medicine, Xuzhou Tumor Hospital, Xuzhou, 221005, People's Republic of China.,Xuzhou Key Laboratory of Laboratory Diagnostics, Medical Technology School of Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Haiquan Kang
- Department of Laboratory Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, People's Republic of China
| | - Feng Gu
- Department of Laboratory Medicine, Xuzhou Tumor Hospital, Xuzhou, 221005, People's Republic of China
| | - Chongwen Wang
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Beijing, 100850, People's Republic of China.,College of Life Sciences, Anhui Agricultural University, Hefei, 230036, People's Republic of China
| | - Siyun Cheng
- Xuzhou Key Laboratory of Laboratory Diagnostics, Medical Technology School of Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Wenjing Gong
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Beijing, 100850, People's Republic of China
| | - Liping Wang
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Beijing, 100850, People's Republic of China
| | - Bing Gu
- Xuzhou Key Laboratory of Laboratory Diagnostics, Medical Technology School of Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.,Department of Laboratory Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, People's Republic of China
| | - Ying Yang
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Beijing, 100850, People's Republic of China
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34
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Lê QT, Ly NH, Kim MK, Lim SH, Son SJ, Zoh KD, Joo SW. Nanostructured Raman substrates for the sensitive detection of submicrometer-sized plastic pollutants in water. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123499. [PMID: 32739725 DOI: 10.1016/j.jhazmat.2020.123499] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 05/24/2023]
Abstract
We prepared novel Raman substrates for the sensitive detection of submicron-sized plastic spheres in water. Anisotropic nanostar dimer-embedded nanopore substrates were prepared for the efficient identification of submicron-sized plastic spheres by providing internal hot spots of electromagnetic field enhancements at the tips of nanoparticles. Silver-coated gold nanostars (AuNSs@Ag) were inserted into anodized aluminum oxide (AAO) nanopores for enhanced microplastic (MP) detection. We found that surface-enhanced Raman scattering (SERS) substrates of AuNSs@Ag@AAO yielded stronger signals at the same weight percentages for polystyrene MP particles with diameters as small as 0.4 μm, whereas such behaviors could not be observed for larger MPs (diameters of 0.8 μm, 2.3 μm, and 4.8 μm). The detection limit of the submicrometer-sized 0.4 μm in our Raman measurements were estimated to be 0.005% (∼0.05 mg/g =50 ppm) along with a fast detection time of only a few min without any sample pretreatments. Our nano-sized dimensional matching substrates may provide a useful tool for the application of SERS substrates for submicrometer MP pollutants in water.
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Affiliation(s)
- Quang Trung Lê
- Department of Information Communication Convergence Technology, Soongsil University, Seoul, 06978, Republic of Korea
| | - Nguyễn Hoàng Ly
- Department of Chemistry, Soongsil University, Seoul, 06978, Republic of Korea
| | - Moon-Kyung Kim
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, Republic of Korea
| | - Soon Hyuk Lim
- Department of Chemistry, Gachon University, Seongnam, 13120, Republic of Korea
| | - Sang Jun Son
- Department of Chemistry, Gachon University, Seongnam, 13120, Republic of Korea
| | - Kyung-Duk Zoh
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang-Woo Joo
- Department of Information Communication Convergence Technology, Soongsil University, Seoul, 06978, Republic of Korea; Department of Chemistry, Soongsil University, Seoul, 06978, Republic of Korea.
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35
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Wu J, Feng Y, Zhang L, Wu W. Nanocellulose-based Surface-enhanced Raman spectroscopy sensor for highly sensitive detection of TNT. Carbohydr Polym 2020; 248:116766. [DOI: 10.1016/j.carbpol.2020.116766] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/01/2020] [Accepted: 07/11/2020] [Indexed: 12/11/2022]
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36
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Pei X, Tao G, Wu X, Ma Y, Li R, Li N. Nanomaterial-based multiplex optical sensors. Analyst 2020; 145:4111-4123. [PMID: 32490466 DOI: 10.1039/d0an00392a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The drive for a simultaneous analysis of multiple targets with excellent accuracy and efficiency, which is often required in both basic biomedical research and clinical applications, demands the development of multiplexed bioassays with desired throughput. With the development of nanotechnologies, innovative multiplex optical bioassays have been achieved. Nanomaterials exhibit unique physical and chemical properties such as easily tunable size, large surface-to-volume ratio, excellent catalysis and the desired signal transduction mechanism, which makes them excellent candidates for the fabrication of novel optical nanoprobes. This mini review summarizes nanomaterial-based optical multiplex sensors from the last 5 years. Specific optical techniques covered in this review are fluorescence, surface-enhanced Raman scattering (SERS), localized surface plasmon resonance (LSPR), chemiluminescence (CL), and the multimodality with fundamentals and examples.
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Affiliation(s)
- Xiaojing Pei
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, P. R. China
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