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Yang C, Zhu K, Yan B. Efficient Multi-stimulus-Responsive Luminescent Eu(III)-Modified HOFs Materials: Detecting Thiram and Caffeic Acid and Constructing a Flexible Substrate Anti-counterfeiting Platform. ACS Appl Mater Interfaces 2024. [PMID: 38597280 DOI: 10.1021/acsami.4c00573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
The powerful capability of multi-stimulus-responsive luminescent hydrogen-bonded organic frameworks (HOFs) to respond to external chemical or physical stimuli in various manners makes them appealing in the luminescence anti-counterfeiting field. Herein, a novel Eu3+-functionalized HOF (Eu@GC-2) that combines the emission of HOFs with the characteristic emission of Eu3+ ions has been successfully synthesized, which can generate various fluorescence at different excitation wavelengths. Eu@GC-2 has enormous potential as a raw material for a paper-based sensor that is designed for detecting the pesticides thiram and caffeic acid in crops with favorable selectivity, anti-interference, and high efficiency. Based on the above excellent properties, Ln3+-functionalized HOFs (Ln@GC-2) were then employed to produce four luminescent anti-counterfeiting inks. With the incorporation of back-propagation neural network and Gray code conversion functions, a multi-stimulus-responsive luminescent anti-counterfeiting platform, coregulated by the excitation light and the chemical reagent, has been constructed. This approach can not only achieve multiple encryptions and fast information identification but also enhance the code-breaking complexity, making it an efficient strategy for information encryption and decryption.
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Affiliation(s)
- Chunyu Yang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Kai Zhu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Bing Yan
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
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Zhang J, Jia Y, Tong X, Zhou H, Zhang L, Yang Y, Ji X. Portable ratiometric fluorescence detection of Cu 2+and thiram. Methods Appl Fluoresc 2024; 12:035002. [PMID: 38587171 DOI: 10.1088/2050-6120/ad3891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/27/2024] [Indexed: 04/09/2024]
Abstract
Food contaminants pose a danger to human health, but rapid, sensitive and reliable food safety detection methods can offer a solution to this problem. In this study, an optical fiber ratiometric fluorescence sensing system based on carbon dots (CDs) and o-phenylenediamine (OPD) was constructed. The ratiometric fluorescence response of Cu2+and thiram was carried out by the fluorescence resonance energy transfer (FRET) between CDs and 2,3-diaminophenazine (ox-OPD, oxidized state o-phenylenediamine). The oxidation of OPD by Cu2+resulted in the formation of ox-OPD, which quenched the fluorescence of CDs and exhibited a new emission peak at 573 nm. The formation of a [dithiocarbamate-Cu2+] (DTC-Cu2+) complex by reacting thiram with Cu2+, inhibits the OPD oxidation reaction triggered by Cu2+, thus turning off the fluorescence signal of OPD-Cu2+. The as-established detection system presented excellent sensitivity and selectivity for the detection of Cu2+and thiram in the ranges of 1 ∼ 100μM and 5 ∼ 50μM, respectively. The lowest detection limits were 0.392μM for Cu2+and 0.522μM for thiram. Furthermore, actual sample analysis indicated that the sensor had the potential for Cu2+and thiram assays in real sample analysis.
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Affiliation(s)
- Jiazhen Zhang
- School of Physical and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Yicong Jia
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
| | - Xuan Tong
- School of Physical and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Hangyu Zhou
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
| | - Le Zhang
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
| | - Yue Yang
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
- Education Ministry Key Laboratory of Renewable Energy Advanced Materials and Manufacturing Technology, Yunnan Normal University, Kunmsing 650500, People's Republic of China
| | - Xu Ji
- School of Physical and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, People's Republic of China
- Education Ministry Key Laboratory of Renewable Energy Advanced Materials and Manufacturing Technology, Yunnan Normal University, Kunmsing 650500, People's Republic of China
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Parmigiani M, Schifano V, Taglietti A, Galinetto P, Albini B. Increasing gold nanostars SERS response with silver shells: a surface-based seed-growth approach. Nanotechnology 2024; 35:195603. [PMID: 38306966 DOI: 10.1088/1361-6528/ad25c9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/02/2024] [Indexed: 02/04/2024]
Abstract
A straightforward method to prepare surface enhanced Raman spectroscopy (SERS) chips containing a monolayer of silver coated gold nanostars (GNS@Ag) grafted on a glass surface is introduced. The synthetic approach is based on a seed growth method performed directly on surface, using GNS as seeds, and involving a green pathway, which only uses silver nitate, ascorbic acid and water, to grow the silver shell. The preparation was optimized to maximize signals obtaining a SERS response of one order of magnitude greater than that from the original GNS based chips, offering in the meantime good homogeneity and acceptable reproducibility. The proposed GNS@Ag SERS chips are able to detect pesticide thiram down to 20 ppb.
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Affiliation(s)
- Miriam Parmigiani
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Veronica Schifano
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Angelo Taglietti
- Dipartimento di Chimica, Sezione di Chimica Generale, Università di Pavia, viale Taramelli, 12-I-27100 Pavia-Italy
| | - Pietro Galinetto
- Dipartimento di Fisica, Università di Pavia, Via Bassi 6,-I-27100 Pavia-Italy
| | - Benedetta Albini
- Dipartimento di Fisica, Università di Pavia, Via Bassi 6,-I-27100 Pavia-Italy
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Li L, Zhang T, Zhang L, Li W, Xu T, Wang L, Liu C, Li W, Li J, Lu R. One-step fabrication of flexible polyamide@Ag-dodecanethiol membranes for highly sensitive SERS detection of thiram. Nanotechnology 2023; 35:105601. [PMID: 38035399 DOI: 10.1088/1361-6528/ad115e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 11/30/2023] [Indexed: 12/02/2023]
Abstract
The surface-enhanced Raman scattering (SERS) is an effective spectral technology based on Raman scattering, but in practice, the commonly used SERS substrates suffer from low sensitivity and poor stability. In order to overcome these limitations, the SERS substrates were prepared from hydrophobic modification of dodecanethiol (C12) coupled with a flexible substrate, which was then used for pesticides detection in water. A flexible PA@Ag-C12 substrate with surface functionalization has been obtained. This work aims to investigate the self-assembly of Ag NPs modified with C12 onto polyamide (PA) membranes. Initially, transmission electron microscopy and scanning electron microscopy were used to analyze the substrate's morphology. Then with the help of an energy-dispersive spectrometer, sulfur content of C12-modified Ag NPs was analyzed. In order to determine the hydrophobicity of the modified Ag NPs, the contact angle was used. The results indicate that the gap between Ag NPs on PA membrane can be effectively controlled in order to prevent Ag NPs from aggregating. Furthermore, the finite-difference time-domain analysis indicated that the PA@Ag-C12 substrate exhibited a stronger electromagnetic enhancement effect than the PA@Ag substrate. By reducing NPs gaps on the PA membrane, the number of 'hot spots' increased, and the SERS performance of the substrate was improved as a result. According to the results of this study, this method can greatly reduce the manufacturing costs and time costs of the SERS substrate while maintaining the original uniformity. The SERS performance of PA@Ag-C12 was found to be three orders of magnitude better than that of PA@Ag direct self-assembled substrate, and the detection limit for Rhodamine 6G (R6G) was approximately 8.47 × 10-14M. On the basis of the PA@Ag-C12 substrate, thiram is detectable at a detection limit of 5.88 × 10-11M with a high degree of sensitivity and repeatability.
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Affiliation(s)
- Lujie Li
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Tingting Zhang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Lan Zhang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Wei Li
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Tao Xu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Lingling Wang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China
| | - Chang Liu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, People's Republic of China
| | - Weihua Li
- School of Environment and Energy Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, People's Republic of China
| | - Jiansheng Li
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Rui Lu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
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Zhang Y, Qiu H, Huang Y, Miao J, Lai K. Modified paper-based substrates fabricated via electrostatic attraction of gold nanospheres for non-destructive detection of pesticides based on surface-enhanced Raman spectroscopy. J Sci Food Agric 2023; 103:7218-7226. [PMID: 37347840 DOI: 10.1002/jsfa.12804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/08/2023] [Accepted: 06/22/2023] [Indexed: 06/24/2023]
Abstract
BACKGROUND Flexible surface-enhanced Raman spectroscopy (SERS) substrates such as paper-based substrates show great potential for rapid detection of residual chemicals on food surfaces. However, controlling the density and distribution of metallic nanoparticles adsorbed on the paper is still challenging. RESULTS The amount of gold (Au) nanospheres (51 ± 4 nm) attached on the filter paper modified with 3-aminopropyltriethoxysilane (APTES) was tunable, increasing as the level of APTES (2.5-15.0 g kg-1 ) applied for paper modification increased. Moreover, the Au nanospheres were relative evenly distributed on the filter paper modified with 2.5-10.0 g kg-1 of APTES, which resulted in excellent intra- and inter-reproducibility of SERS signals for pesticides including thiram, diquat dibromide, and paraquat dichloride (relative standard deviation = 2.2-10.1%). The modified paper-based substrate could be used to detect as low as 0.05-0.2 mg L-1 of pesticides in standard solutions, and as low as 5-20 ng cm-2 of residual pesticides on apple skins with minimum sample pretreatment. CONCLUSION This paper-based substrate with tunable feature for the density and distribution of nanoparticles is applicable for rapid SERS detection of residual pesticides in fruits and vegetables. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yuxin Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, China
| | - Huixin Qiu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yiqun Huang
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, China
| | - Junjian Miao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Engineering Research Center of Food Thermal-Processing Technology, Shanghai Ocean University, Shanghai, China
| | - Keqiang Lai
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Engineering Research Center of Food Thermal-Processing Technology, Shanghai Ocean University, Shanghai, China
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Zhang Y, Li N, Li H, Chen M, Jiang W, Guo W. Thiram, an inhibitor of 11ß-hydroxysteroid dehydrogenase type 2, enhances the inhibitory effects of hydrocortisone in the treatment of osteosarcoma through Wnt/β-catenin pathway. BMC Pharmacol Toxicol 2023; 24:20. [PMID: 36978114 PMCID: PMC10045229 DOI: 10.1186/s40360-023-00655-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 02/22/2023] [Indexed: 03/30/2023] Open
Abstract
Background The anti-osteosarcoma effects of hydrocortisone and thiram, an inhibitor of type 2 11ß-hydroxysteroid dehydrogenase (11HSD2), have not been reported. The purpose of this study was to investigate the effects of hydrocortisone alone or the combination of hydrocortisone with thiram on osteosarcoma and the molecular mechanism, and determine whether they can be as new therapeutic agents for osteosarcoma. Methods Normal bone cells and osteosarcoma cells were treated with hydrocortisone or thiram alone or in combination. The cell proliferation, migration, cell cycle and apoptosis were detected by using CCK8 assay, wound healing assay, and flow cytometry, respectively. An osteosarcoma mouse model was established. The effect of drugs on osteosarcoma in vivo was assessed by measuring tumor volume. Transcriptome sequencing, bioinformatics analysis, RT–qPCR, Western blotting (WB), enzymelinked immunosorbent assay (ELISA) and siRNA transfection were performed to determine the molecular mechanisms. Results Hydrocortisone inhibited the proliferation and migration, and induced apoptosis and cell cycle arrest of osteosarcoma cells in vitro. Hydrocortisone also reduced the volume of osteosarcoma in mice in vivo. Mechanistically, hydrocortisone decreased the levels of Wnt/β-catenin pathway-associated proteins, and induced the expression of glucocorticoid receptor α (GCR), CCAAT enhancer-binding protein β (C/EBP-beta) and 11HSD2, resulting in a hydrocortisone resistance loop. Thiram inhibited the activity of the 11HSD2 enzyme, the combination of thiram and hydrocortisone further enhanced the inhibition of osteosarcoma through Wnt/β-catenin pathway. Conclusions Hydrocortisone inhibits osteosarcoma through the Wnt/β-catenin pathway. Thiram inhibits 11HSD2 enzyme activity, reducing hydrocortisone inactivation and promoting the effect of hydrocortisone through the same pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s40360-023-00655-0.
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Affiliation(s)
- You Zhang
- grid.412901.f0000 0004 1770 1022Clinical Translational Innovation Center/Molecular Medicine Research Center, West China Hospital, Sichuan Univicity, Chengdu, Sichuan Province 610041 People’s Republic of China
| | - Nanjing Li
- grid.13291.380000 0001 0807 1581Division of of Radiotherapy, Cancer Center,West China Hospital, Sichuan University, Chengdu, Sichuan Province 610041 People’s Republic of China
| | - He Li
- grid.13291.380000 0001 0807 1581West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan Province 610044 People’s Republic of China
| | - Maojia Chen
- grid.412901.f0000 0004 1770 1022Animal Experiment Center, West China Hospital, Sichuan University, Chengdu, 610000 People’s Republic of China
| | - Wei Jiang
- grid.412901.f0000 0004 1770 1022Clinical Translational Innovation Center/Molecular Medicine Research Center, West China Hospital, Sichuan Univicity, Chengdu, Sichuan Province 610041 People’s Republic of China
| | - Wenhao Guo
- grid.412901.f0000 0004 1770 1022Department of Abdominal Oncology, Cancer Center and State Key Laboratory of Biotherapy, Medical School, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan Province 610041 People’s Republic of China
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Saeedi S, Hassanabadi A, Zaeemi M. Effects of cold stress on growth performance, carcass traits and tibia attributes in broiler chickens with thiram-induced dyschondroplasia. J Anim Physiol Anim Nutr (Berl) 2023; 107:659-670. [PMID: 35638581 DOI: 10.1111/jpn.13734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/20/2022] [Accepted: 05/03/2022] [Indexed: 11/30/2022]
Abstract
The objective of this study was to investigate the effect of cold stress (CS) on growth performance and tibia attributes in broiler chickens with thiram-induced dyschondroplasia (TD). Four hundred 10-day-old male broilers were randomly allocated into four groups including, NT0: normal temperature (NT) without thiram; NT50: NT + thiram; CS0: CS without thiram; and CS50: CS + thiram in a completely randomised. The birds in CS groups were placed at a constant temperature of 15 ± 1°C during 11-20 days. Thiram (50 mg/kg) was added to the diet during 11-14 days to induce TD. Results showed that main effects of CS and thiram significantly decreased body weight and daily weight gain during 11-42 days (p < 0.05). Feed intake in the thiram50 group was significantly lower than the group thiram0 during 25-42 days (p < 0.05). Feed conversion ratio in CS birds was significantly more than NT group during 25-42 days (p < 0.05). On day 16, tibia width (TW) and TW to tibia length (TL) ratio were significantly higher in CS chicks compared to the NT group. TW was significantly higher in thiram50 group than thiram0 group (p < 0.05). On day 19, TL in CS chicks was significantly shorter than NT (p < 0.05). On day 23, growth plate width (GPW) in thiram50 group was significantly higher than thiram0 birds. In general, thiram increased tibial GPW and CS decreased TD severity as well as decreased growth performance in broilers.
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Affiliation(s)
- Sadaf Saeedi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad Hassanabadi
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mahdieh Zaeemi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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Mandrekar PP, Kang M, Park I, Kim B, Yang D. Cost-Effective and Facile Fabrication of a Tattoo Paper-Based SERS Substrate and Its Application in Pesticide Sensing on Fruit Surfaces. Nanomaterials (Basel) 2023; 13:486. [PMID: 36770447 PMCID: PMC9919895 DOI: 10.3390/nano13030486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) has been transformed into a useful analytical technique with significant advantages in relation to sensitive and low-concentration chemical analyses. However, SERS substrates are expensive and the analyte sample preparation is complicated; hence, it is only used in limited areas. We have fabricated a tattoo paper-based SERS substrate by using non-complicated inkjet printing. The sensitivity of the SERS substrate was increased by removing the carbon residues via exposure to ultraviolet light without damaging the substrate. Thus, low concentrations of pesticides (up to 1 μM thiram) were measured. The SERS substrate was attached to the curved surface of an apple to demonstrate its advantages, such as the flexibility and easy attachability of tattoo paper, and its feasibility was verified by measuring 1 μM thiram on the apple's surface. Due to its economic cost, simple usage, and rapid measurement, it will be helpful for the identification of both agricultural adulterants and food adulterants and for water-based pollutant detection. It will also possibly be helpful for medical purposes related to human body surfaces in the future.
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Affiliation(s)
- Pratiksha P. Mandrekar
- Department of Future Convergence Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Mingu Kang
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Inkyu Park
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Bumjoo Kim
- Department of Future Convergence Engineering, Kongju National University, Cheonan 31080, Republic of Korea
- Department of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Daejong Yang
- Department of Future Convergence Engineering, Kongju National University, Cheonan 31080, Republic of Korea
- Department of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, Republic of Korea
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Vasamsetti BMK, Chon K, Choi JY, Kim J, Yoon CY. Transcriptome Analysis of Thiram-Treated Zebrafish (Danio rerio) Embryos Reveals Disruption of Reproduction Signaling Pathways. Biology (Basel) 2023; 12. [PMID: 36829436 DOI: 10.3390/biology12020156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/13/2023] [Accepted: 01/18/2023] [Indexed: 01/20/2023]
Abstract
Thiram, a dithiocarbamate fungicide, is used for the treatment of various fungal infections affecting crops and ornamentals. However, thiram-associated toxicity has been reported in animals, including fish, and the underlying molecular mechanisms are unclear. Herein, we employed zebrafish (ZF) to gain further insights into thiram toxicity-associated molecular mechanisms. We studied developmental abnormalities and performed whole-transcriptome analysis of ZF embryos exposed to thiram for 96 h. Embryos exposed to 4.0 μg/L thiram exhibited several phenotypic abnormalities, including bradycardia, spinal curvature, hatching arrest, and growth retardation. Whole-transcriptome analysis revealed 1754 differentially expressed genes (DEGs), with 512 upregulated and 1242 downregulated DEGs. The majority of biological processes affected by thiram were metabolic. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis yielded terms related to reproduction, such as steroid biosynthesis and steroid hormone biosynthesis. Quantitative real-time polymerase chain reaction validation results were in line with sequencing data for ten DEGs. The study results improve our current understanding of the effects of thiram exposure in ZF.
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Wang M, Wang L, Shabbir S, Zhou D, Shahid MA, Luo H, Li H, Li Z, Sun X, Wu C, Zhao Y. Effects of thiram exposure on liver metabolism of chickens. Front Vet Sci 2023; 10:1139815. [PMID: 36925611 PMCID: PMC10011634 DOI: 10.3389/fvets.2023.1139815] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/06/2023] [Indexed: 03/08/2023] Open
Abstract
Pesticides are widely used to control crop diseases, which have made an important contribution to the increase of global crop production. However, a considerable part of pesticides may remain in plants, posing a huge threat to animal safety. Thiram is a common pesticide and has been proven that its residues in the feed can affect the growth performance, bone formation, and intestinal health of chickens. However, there are few studies on the liver metabolism of chickens exposed to thiram. Here, the present study was conducted to investigate the effect of thiram exposure on liver metabolism of chickens. Metabolomics analysis shows that 62 metabolites were down-regulated (ginsenoside F5, arbekacin, coproporphyrinogen III, 3-keto Fusidic acid, marmesin, isofumonisin B1, 3-Hydroxyquinine, melleolide B, naphazoline, marmesin, dibenzyl ether, etc.) and 35 metabolites were up-regulated (tetrabromodiphenyl ethers, deoxycholic acid glycine conjugate, L-Palmitoylcarnitine, austalide K, hericene B, pentadecanoylcarnitine, glyceryl palmitostearate, quinestrol, 7-Ketocholesterol, tetrabromodiphenyl ethers, etc.) in thiram-induced chickens, mainly involved in the metabolic pathways including glycosylphosphatidylinositol (GPI)-anchor biosynthesis, porphyrin and chlorophyll metabolism, glycerophospholipid metabolism, primary bile acid biosynthesis and steroid hormone biosynthesis. Taken together, this research showed that thiram exposure significantly altered hepatic metabolism in chickens. Moreover, this study also provided a basis for regulating the use and disposal of thiram to ensure environmental quality and poultry health.
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Affiliation(s)
- Meng Wang
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Lei Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | | | - Dongliang Zhou
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Muhammad Akbar Shahid
- Department of Pathobiology, Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Houqiang Luo
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Huixia Li
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Ziwei Li
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Xingya Sun
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Chunqin Wu
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Yan Zhao
- College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou, China
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Asghar M, Yaqoob M, Munawar N, Nabi A. Determination of thiram residues in fresh water using flow injection diperiodatonickelate(IV)-quinine chemiluminescence detection. LUMINESCENCE 2022; 37:2041-2049. [PMID: 36150887 DOI: 10.1002/bio.4389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/17/2022] [Accepted: 09/17/2022] [Indexed: 12/14/2022]
Abstract
This study developed a simple flow injection (FI) method based on diperiodatonickelate(IV)-sulfuric acid reaction using chemiluminescence (CL) detection for the determination of thiram (THI) fungicide in fresh water using quinine as the sensitizer. The possible mechanism of the CL reaction was described using UV-Vis. absorption and CL spectra. Experimental variables were optimized by applying a univariate approach, and a linear calibration curve was obtained in the range of 1.0 × 10-3 -2.0 mg L-1 (R2 = 0.9994, n = 9) with a limit of detection of 5.0 × 10-4 mg L-1 (S/N = 3) and an injection throughput of 200 h-1 . This approach was successfully applied to determine THI in fresh water by using solid-phase extraction and achieved a good recovery rate of 94%-110% with a relative standard deviation of 1.9%-3.7% (n = 4). The results obtained were compared with the reported FI-CL and high-performance liquid chromatography-ultraviolet methods, and the three methods did not differ significantly at the 95% confidence limit.
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Affiliation(s)
- Muhammad Asghar
- Department of Chemistry, University of Balochistan, Quetta, Pakistan
| | - Mohammad Yaqoob
- Department of Chemistry, University of Balochistan, Quetta, Pakistan
| | - Nusrat Munawar
- Department of Chemistry, Sardar Bahadur Khan Women University, Quetta, Pakistan
| | - Abdul Nabi
- Department of Chemistry, University of Balochistan, Quetta, Pakistan
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12
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Pan TT, Guo M, Lu P, Hu D. Real-time and in situ monitoring of organosilicon-induced thiram penetration into cabbage leaves by surface-enhanced Raman scattering mapping. J Sci Food Agric 2022; 102:7405-7413. [PMID: 35789490 DOI: 10.1002/jsfa.12109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Understanding pesticide penetration behavior is important for effective application of pesticides. However, there is a lack of an effective method to monitor pesticide penetration behavior and its changing process. In the present study, a novel surface-enhanced Raman scattering (SERS) mapping method was used for real-time and in situ tracking of the penetration behaviors of thiram and thiram-organosilicon mixture on cabbage leaves. RESULTS The results suggest that thiram has very weak ability to penetrate into cabbage leaves. However, when the thiram-organosilicon mixture was placed on leaf surfaces, a clear thiram signal was detected inside the leaf after 2 h of exposure, a strong signal was observed after 12 h, and the penetration depth of thiram was approximately 200 μm after 48 h. CONCLUSION SERS mapping was demonstrated to be a reliable method for in situ monitoring of organosilicon-induced thiram penetration into cabbage leaf over time. The present study provides a new reference for rationally selecting adjuvants, effectively applying pesticides, and reducing pesticides residue in food. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Ting-Tiao Pan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
- College of Biological Sciences and Agriculture, Qiannan Normal University for Nationalities, Duyun, China
| | - Meiting Guo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Ping Lu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
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13
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Zhai W, Cao M, Xiao Z, Li D, Wang M. Rapid Detection of Malathion, Phoxim and Thiram on Orange Surfaces Using Ag Nanoparticle Modified PDMS as Surface-Enhanced Raman Spectroscopy Substrate. Foods 2022; 11:foods11223597. [PMID: 36429190 PMCID: PMC9689543 DOI: 10.3390/foods11223597] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Malathion, phoxim, and thiram are organophosphates and organosulfur pesticides widely used in agricultural products. The residues of these pesticides present a direct threat to human health. Rapid and on-site detection is critical for minimizing such risks. In this work, a simple approach was introduced using a flexible surface-enhanced Raman spectroscopy (SERS) substrate. The prepared Ag nanoparticles-polydimethylsiloxane (AgNPs-PDMS) substrate showed high SERS activity, good precision (relative standard deviation = 5.33%), and stability (30 days) after optimization. For target pesticides, the linear relationship between characteristic SERS bands and concentrations were achieved in the range of 10~1000, 100~5000, and 50~5000 μg L-1 with LODs down to 3.62, 41.46, and 15.69 μg L-1 for thiram, malathion, and phoxim, respectively. Moreover, SERS spectra of mixed samples indicated that three pesticides can be identified simultaneously, with recovery rates between 96.5 ± 3.3% and 118.9 ± 2.4%, thus providing an ideal platform for detecting more than one target. Pesticide residues on orange surfaces can be simply determined through swabbing with the flexible substrate before acquiring the SERS signal. This study demonstrated that the prepared substrate can be used for the rapid detection of pesticides on real samples. Overall, this method greatly simplified the pre-treatment procedure, thus serving as a promising analytical tool for rapid and nondestructive screening of malathion, phoxim, and thiram on various agricultural products.
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Affiliation(s)
- Wenlei Zhai
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Mingshuo Cao
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Zhiyong Xiao
- Beijing Center of AGRI-Products Quality and Safety, Beijing 100029, China
| | - Dan Li
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Meng Wang
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- Correspondence:
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14
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Parmigiani M, Albini B, Pellegrini G, Genovesi M, De Vita L, Pallavicini P, Dacarro G, Galinetto P, Taglietti A. Surface-Enhanced Raman Spectroscopy Chips Based on Silver Coated Gold Nanostars. Nanomaterials (Basel) 2022; 12:nano12203609. [PMID: 36296798 PMCID: PMC9609606 DOI: 10.3390/nano12203609] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/12/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is becoming widely used as an analytical tool, and the search for stable and highly responsive SERS substrates able to give ultralow detection of pollutants is a current challenge. In this paper we boosted the SERS response of Gold nanostars (GNS) demonstrating that their coating with a layer of silver having a proper thickness produces a 7-fold increase in SERS signals. Glass supported monolayers of these GNS@Ag were then prepared using simple alcoxyliane chemistry, yielding efficient and reproducible SERS chips, which were tested for the detection of molecules representative of different classes of pollutants. Among them, norfloxacin was detected down to 3 ppb, which is one of the lowest limits of detection obtained with this technique for the analyte.
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Affiliation(s)
- Miriam Parmigiani
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Benedetta Albini
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | | | - Marco Genovesi
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Lorenzo De Vita
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | | | - Giacomo Dacarro
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Pietro Galinetto
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Angelo Taglietti
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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Byram C, Rathod J, Moram SSB, Mangababu A, Soma VR. Picosecond Laser-Ablated Nanoparticles Loaded Filter Paper for SERS-Based Trace Detection of Thiram, 1,3,5-Trinitroperhydro-1,3,5-triazine (RDX), and Nile Blue. Nanomaterials (Basel) 2022; 12. [PMID: 35807985 DOI: 10.3390/nano12132150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/13/2022] [Accepted: 06/20/2022] [Indexed: 01/27/2023]
Abstract
Recently, filter paper (FP)-based surface-enhanced Raman scattering (SERS) substrates have stimulated significant attention owing to their promising advantages such as being low-cost, easy to handle, and practically suitable for real-field applications in comparison to the solid-based substrates. Herein, a simple and versatile approach of laser-ablation in liquid for the fabrication of silver (Ag)-gold (Au) alloy nanoparticles (NPs). Next, the optimization of flexible base substrate (sandpaper, printing paper, and FP) and the FP the soaking time (5−60 min) was studied. Further, the optimized FP with 30 min-soaked SERS sensors were exploited to detect minuscule concentrations of pesticide (thiram-50 nM), dye (Nile blue-5 nM), and an explosive (RDX-1,3,5-Trinitroperhydro-1,3,5-triazine-100 nM) molecule. Interestingly, a prominent SERS effect was observed from the Au NPs exhibiting satisfactory reproducibility in the SERS signals over ~1 cm2 area for all of the molecules inspected with enhancement factors of ~105 and relative standard deviation values of <15%. Furthermore, traces of pesticide residues on the surface of a banana and RDX on the glass slide were swabbed with the optimized FP substrate and successfully recorded the SERS spectra using a portable Raman spectrometer. This signifies the great potential application of such low-cost, flexible substrates in the future real-life fields.
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Banerjee D, Akkanaboina M, Ghosh S, Soma VR. Picosecond Bessel Beam Fabricated Pure, Gold-Coated Silver Nanostructures for Trace-Level Sensing of Multiple Explosives and Hazardous Molecules. Materials (Basel) 2022; 15:4155. [PMID: 35744214 DOI: 10.3390/ma15124155] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/28/2022] [Accepted: 06/08/2022] [Indexed: 12/15/2022]
Abstract
A zeroth-order, non-diffracting Bessel beam, generated by picosecond laser pulses (1064 nm, 10 Hz, 30 ps) through an axicon, was utilized to perform pulse energy-dependent (12 mJ, 16 mJ, 20 mJ, 24 mJ) laser ablation of silver (Ag) substrates in air. The fabrication resulted in finger-like Ag nanostructures (NSs) in the sub-200 nm domain and obtained structures were characterized using the FESEM and AFM techniques. Subsequently, we employed those Ag NSs in surface-enhanced Raman spectroscopy (SERS) studies achieving promising sensing results towards trace-level detection of six different hazardous materials (explosive molecules of picric acid (PA) and ammonium nitrate (AN), a pesticide thiram (TH) and the dye molecules of Methylene Blue (MB), Malachite Green (MG), and Nile Blue (NB)) along with a biomolecule (hen egg white lysozyme (HEWL)). The remarkably superior plasmonic behaviour exhibited by the AgNS corresponding to 16 mJ pulse ablation energy was further explored. To accomplish a real-time application-oriented understanding, time-dependent studies were performed utilizing the AgNS prepared with 16 mJ and TH molecule by collecting the SERS data periodically for up to 120 days. The coated AgNSs were prepared with optimized gold (Au) deposition, accomplishing a much lower trace detection in the case of thiram (~50 pM compared to ~50 nM achieved prior to the coating) as well as superior EF up to ~108 (~106 before Au coating). Additionally, these substrates have demonstrated superior stability compared to those obtained before Au coating.
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17
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Xu G, Shen X, Zhang L, Tang J, He C, Zhou Z, Xu T, Xu M, Jin Y, Wang C. Fabrication of highly sensitive and uniform Ag/PS/PDMS SERS substrate and its application for in-situdetection. Nanotechnology 2022; 33:245601. [PMID: 35235919 DOI: 10.1088/1361-6528/ac59e9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
In this study, we developed a flexible and transparent silver/polystyrene/polydimethylsiloxane (Ag/PS/PDMS) substrate with both high density of hot spots and satisfactory uniformity using a cost-effective approach. Via template-guided self-assembly, PS beads were arranged regularly in nanobowls of a square array on PDMS, whose surface structure was transferred from a commercial complementary metal oxide semiconductor chip. Roughness was introduced onto the PS bead surface by nitrogen plasma treatment, followed by sputtering of Ag which generated many hot spots. Differential roughness on the PS bead surface greatly influenced the morphology of the Ag/PS/PDMS substrate. A meat-ball like surface structure was formed with a plasma etching time of 5 min, whose growth mechanism was proposed based on the scanning electron microscope analysis. The high sensitivity and desirable uniformity of the meat-ball like Ag/PS/PDMS substrate were demonstrated by using crystal violet as a Raman reporter, exhibiting an enhancement factor of 2.7 × 107and a relative standard deviation of 5.04%. Thiram of a lower concentration than the maximum residue limit on the cucumber surface could easily be detectedin situby the proposed substrate, demonstrating its great potential forin-situfood safety analysis.
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Affiliation(s)
- Guangming Xu
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Xilong Shen
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Lei Zhang
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Jie Tang
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Chuan He
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Ziqiang Zhou
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Tian Xu
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Meifeng Xu
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Yonglong Jin
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Chaonan Wang
- School of Science, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
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18
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Dong J, Wang Y, Wang Q, Cao Y, Han Q, Gao W, Wang Y, Qi J, Sun M. Nanoscale engineering of ring-mounted nanostructure around AAO nanopores for highly sensitive and reliable SERS substrates. Nanotechnology 2022; 33:135501. [PMID: 34911057 DOI: 10.1088/1361-6528/ac4355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is recognized as one of the most favored techniques for enhancing Raman signals. The morphology of the SERS substrate profoundly affects molecular Raman spectra. This study aimed to construct a ring-mounted nanostructured substrate via liquid-liquid two-phase self-assembly incorporated with anodic aluminum oxide (AAO) membrane transfer techniques. High-density nanoparticles (NPs) assembled on AAO membranes were ascribed to reduce the diameters of the nanopores, with Au-Ag alloy NPs to regulate the dielectric constant so as to reveal the local surface plasmon resonance tunability. SERS engineered in this way allowed for the fabrication of a ring-mounted nanostructured substrate where the distribution density of NPs and dielectric constant could be independently fine-tuned. High SERS activity of the substrate was revealed by detecting the enhanced factor of crystal violet and rhodamine 6G molecules, which was up to 1.56 × 106. Moreover, SERS of thiram target molecules confirmed the supersensitivity and repeatability of the substrate as a practical application. The results of this study manifested a low-cost but high-efficiency ring-mounted nanostructured SERS substrate that might be suitable in many fields, including biosensing, medical research, environmental monitoring, and optoelectronics.
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Affiliation(s)
- Jun Dong
- School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Yan Wang
- School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Qianying Wang
- School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Yi Cao
- School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Qingyan Han
- School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Wei Gao
- School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Yongkai Wang
- School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Jianxia Qi
- School of Science, Xi'an University of Posts and Telecommunications, Xi'an, 710121, People's Republic of China
| | - Mengtao Sun
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
- Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan, 250358, People's Republic of China
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Zhang Q, Xu G, Guo N, Wang T, Song P, Xia L. In-Situ Synthesis of Methyl Cellulose Film Decorated with Silver Nanoparticles as a Flexible Surface-Enhanced Raman Substrate for the Rapid Detection of Pesticide Residues in Fruits and Vegetables. Materials (Basel) 2021; 14:5750. [PMID: 34640144 DOI: 10.3390/ma14195750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/17/2021] [Accepted: 09/24/2021] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to develop a flexible substrate methylcellulose-decorated silver nanoparticles (MC/Ag NPs) film and explore its application in fruits and vegetables by surface enhanced Raman spectroscopy (SERS) technology for rapid detection of pesticides. The performance of the MC/Ag NPs film substrate was characterized by Nile blue A (NBA), and the detection limit was as low as 10−8 M. The substrate also exhibited satisfactory Raman signal strength after two months of storage. The impressive sensitivity and stability were due to the excellent homogeneity of the silver nanoparticles that were grown in situ in the methylcellulose matrix, which generated “hot spots” between the silver nanoparticles without a large amount of aggregation, and resulted in the ultra-high sensitivity and excellent stability of the MC/Ag NPs film substrate. The MC/Ag NPs film substrate was used to detect thiram pesticides on tomato and cucumber peels, and the minimum detectable level of thiram was 2.4 ng/cm2, which was much lower than the maximum residue level. These results indicate that the MC/Ag NPs film is sensitive to rapid detection of multiple pesticides in food.
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20
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Barbillon G, Graniel O, Bechelany M. Assembled Au/ZnO Nano-Urchins for SERS Sensing of the Pesticide Thiram. Nanomaterials (Basel) 2021; 11:2174. [PMID: 34578490 PMCID: PMC8467743 DOI: 10.3390/nano11092174] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 01/26/2023]
Abstract
In this paper, we are relating a significant improvement of the SERS effect achieved with assembled Au/ZnO nano-urchins. This improvement is realized thanks to an excellent capacity of adsorption (denoted K) for thiram molecules on these plasmonic nano-urchins, which is a key point to be taken into account for obtaining a SERS spectrum. Moreover, this outlook may be employed for different types of plasmonic substrates and for a wide number of molecules. We studied the capacity of the assembled Au/ZnO nano-urchins to be sensitive to the pesticide thiram, which adsorbs well on metals via the metal-sulfur bond. For the thiram detection, we found a limit concentration of 10 pM, a value of this capacity of adsorption (K) of 9.5 × 106 M-1 and a factor of analytical enhancement equal to 1.9 × 108.
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Affiliation(s)
| | - Octavio Graniel
- Institut Européen des Membranes (IEM), UMR-5635, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, 34095 Montpellier, France; (O.G.); (M.B.)
| | - Mikhael Bechelany
- Institut Européen des Membranes (IEM), UMR-5635, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, 34095 Montpellier, France; (O.G.); (M.B.)
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Wang X, Zhou S, Li X, Zhang Q. [Determination of thiram in wheat flour and flour improvers by high performance liquid chromatography-diode array detection]. Se Pu 2021; 39:652-8. [PMID: 34227326 DOI: 10.3724/SP.J.1123.2020.07024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
福美双是重要的二硫代氨基甲酸酯(DTC)杀菌剂,在小麦中使用限量以1 mg/kg二硫化碳(CS2)计。目前我国相关检测方法是针对二硫代氨基甲酸酯一类的化合物,二硫代氨基甲酸酯通过与酸反应生成CS2,采用光谱法或色谱法测定CS2,间接实现二硫代氨基甲酸酯测定。该方法无法特异性实现对福美双的检测,因此开展小麦粉中福美双检测方法的研究具有重要意义。研究建立了高效液相色谱-二极管阵列检测(HPLC-DAD)测定小麦粉及面粉改良剂中福美双的分析方法。小麦粉及面粉改良剂样品用乙腈溶剂提取后,经涡旋、振荡、冰水浴超声和静置后取上清液过滤,供高效液相色谱测定。采用ZORBAX plus-C18色谱柱(150 mm×4.6 mm, 5 μm)分离,以水-乙腈为流动相洗脱分析,在波长280 nm下检测。实验优化了提取溶剂及其体积、振荡超声条件、色谱柱、检测波长、流动相等条件。该方法采用保留时间和紫外光谱图定性,外标法定量。该方法在线性范围内(0.30~30.0 μg/mL)线性关系良好,相关系数(r2)为0.99999。对小麦粉及面粉改良剂进行1.5、3.0、15 mg/kg 3个水平的加标回收试验,福美双的回收率为89.6%~98.3%,相对标准偏差为1.6%~3.9%(n=6)。方法的检出限和定量限分别为0.5 mg/kg和1.5 mg/kg。该方法采用溶剂提取,操作简单,分析时间短,特异性好,具有精密度高、重复性好、检出限低等特点,适用于小麦粉及面粉改良剂中福美双快速、准确的定量检测。
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Bai F, Dong J, Qu J, Zhang Z. Construction of flexible, transparent and mechanically robust SERS-active substrate with an efficient spin coating method for rapid in-situtarget molecules detection. Nanotechnology 2021; 32:385501. [PMID: 34107456 DOI: 10.1088/1361-6528/ac09ab] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/08/2021] [Indexed: 06/12/2023]
Abstract
Flexible, transparent and mechanically robust surface enhanced Raman scattering (SERS)-active substrates is currently the most attractive research focus in the field of Raman detection, and also a powerful analysis and identification technique in the biological research. Herein, we introduced a low-cost and large-scale method to fabricate flexible and transparent AgNPs/WPU plasmonic metafilm with monolayer-island phase nanostructures based on silver nanoparticles (AgNPs) and waterborne polyurethane emulsion (WPU) film. The obtained AgNPs/WPU plasmonic metafilm demonstrated excellent SERS sensitivity, signal uniformity and reproducibility, and the SERS substrates could still maintain excellent stability even after being bent or stretched over 100 cycles. The detection concentration was as low as 10-9M with 4-Mercaptobenzoic acid (4-MBA) as probe molecule, and the enhancement factor was high to 2.2 × 107. More importantly, the flexibility and adhesivity of AgNPs/WPU plasmonic metafilm could be directly conformal coverage on the apple surface forin situdetection of thiram residue, and the detection limit was as low as 9.0165 ng cm-2. This versatile AgNPs/WPU plasmonic metalfilm would be a promising SERS substrate for the detection of pesticide residue in chemical and biological applications.
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Affiliation(s)
- Feng Bai
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Jinchen Dong
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Jianbo Qu
- School of Light Industry Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Zhiliang Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
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Zhang J, Tan Y, Feng L, Ni Z, Wang J, Cai Z. [Determination of thiram, propineb and metiram in mushroom by gas chromatography-mass spectrometry]. Wei Sheng Yan Jiu 2020; 49:267-271. [PMID: 32290944 DOI: 10.19813/j.cnki.weishengyanjiu.2020.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To establish a method for determination of thiram, propineb and metiram in mushroom samples by gas chromatography-mass spectrometry(GC-MS). METHODS Insoluble heavy metal salts were converted into water-soluble sodium salts by alkaline buffer with strong chelating agents. Dithiocarbamates can be converted into different methyl ester compounds with ion pair methylation. The GC separation was performed on a DB-5 MS capillary column(30 m×0. 25 mm, 0. 25 μm). The pesticides were detected by GC-MS with selective ion monitoring(SIM) and quantified by external standard of working curve method. Methodsological verification was carried out based on optimized sample pretreatment and GC-MS condition. RESULTS The concentrations of dithiocarbamates exhibited a good linear relationship with GC-MS within a certain range. The limits of detection of thiram, propineb and metiram were 0. 01, 0. 05 and 0. 05 mg/kg, respectively. Furthermore, the average recoveries were from 76. 98% to 93. 52%, and the maximum relative standard deviation was 11. 54%(n=6). CONCLUSION This method is simple, sensitive, accurate and reliable. All the indices meet the requirements of pesticide residue detection.
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Affiliation(s)
- Jing Zhang
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Ying Tan
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Liang Feng
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Zhunan Ni
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Junlin Wang
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Zengxuan Cai
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
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Rathjen JR, Ryder MH, Riley IT, Lai TV, Denton MD. Impact of seed-applied pesticides on rhizobial survival and legume nodulation. J Appl Microbiol 2020; 129:389-399. [PMID: 32011051 DOI: 10.1111/jam.14602] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 11/29/2022]
Abstract
AIMS Compatibility of seed-applied pesticides and rhizobial inoculants is an important consideration for farmers when sowing legumes. Some of the seed-applied pesticides may influence rhizobial growth and nodulation, but there is currently little available information on the potential inhibitory effects. Therefore, common seed fungicidal and insecticidal treatments were assessed to determine adverse impacts on rhizobial inoculants both in vitro, on treated seed, and in the field. METHODS AND RESULTS Initially, the in vitro toxicity of the seed-applied fungicides Thiram 600, P-Pickel T (PPT), their active ingredients (thiram and thiabendazole) and the insecticide Gaucho to rhizobia was measured with filter discs containing varying concentrations of the pesticides. Pea and chickpea seed was then coated with the same pesticides and inoculated with rhizobia in different inoculant substrates to determine bacterial survival and nodulation. Finally, a field trial using the fungicide PPT and commercial inoculants was conducted. Some seed fungicide treatments were found to be inhibitory to rhizobia and reduce nodulation under monoxenic conditions and in the field. SIGNIFICANCE AND IMPACT OF THE STUDY These data provide more detailed information on the compatibility of specific rhizobial inoculants with common seed-applied pesticides. This research will provide information on the compatibility of rhizobia and seed-applied pesticides, and assist farmers to select sowing practices which reduce the risk of crop nodulation failures.
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Affiliation(s)
- J R Rathjen
- School of Agriculture Food and Wine, The University of Adelaide, Glen Osmond, SA, Australia
| | - M H Ryder
- School of Agriculture Food and Wine, The University of Adelaide, Glen Osmond, SA, Australia
| | - I T Riley
- School of Agriculture Food and Wine, The University of Adelaide, Glen Osmond, SA, Australia.,Faculty of Agricultural Sciences and Technologies, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - T V Lai
- School of Agriculture Food and Wine, The University of Adelaide, Glen Osmond, SA, Australia
| | - M D Denton
- School of Agriculture Food and Wine, The University of Adelaide, Glen Osmond, SA, Australia
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Li Z, Li A, Zhang J, Wang Y, Zhang H, Mehmood K, Lian Y, Iqbal M, Li J. Identification and expression analysis of microRNAs in tibial growth plate of chicken through thiram toxicity. Environ Sci Pollut Res Int 2020; 27:6628-6636. [PMID: 31873907 DOI: 10.1007/s11356-019-06648-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 09/29/2019] [Indexed: 06/10/2023]
Abstract
Thiram is a widely known tibial dyschondroplasia (TD) inducer. TD, a common metabolic cartilage disease, presents in rapidly growing poultry birds. There are evidences that miRNAs are involved in diverse aspects of normal skeletal development, but very less is known about the role of miRNAs in TD. Therefore, this study aimed to determine which genes and pathways show differential expression between TD suffered chickens and normal chickens. We collected growth plates from ten-days-old TD chickens and control chickens and performed high-throughput RNA sequencing (RNA-Seq). Afterwards, target prediction, GO annotation and KEGG pathway analysis were carried out to understand the role of DEMs (differentially expressed microRNAs). We obtained 96,884,760 and 94,574,290 clean reads and identified 17 significant DEMs between the TD and control groups. Functional enrichment analysis of DEMs indicated that the putative targets of miRNAs were remarkably enriched in bone-related pathways, such as Notch, MAPK and Autophagy. Overall, this study provides detailed understanding about the pathogenesis of thiram induced TD and new insights towards the molecular mechanism of miRNAs.
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Affiliation(s)
- Zhixing Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Aoyun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Jialu Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Yaping Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Hui Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Khalid Mehmood
- University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur 63100, Punja, Pakistan
| | - Yi Lian
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
- University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur 63100, Punja, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China.
- College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, Tibet, 860000, PR China.
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Abstract
INTRODUCTION Thiram, a fungicides, is widely used on seeds and as foliar agent on turf, vegetables and fruit. It is also used in the rubber industry as a vulcanization accelerator. When absorbed through the respiratory system, it is rapidly metabolised to dimethylthiocarbamate and carbon disulphide, causing noxious effects. A brief review is presented of the literature, centering on the interesting case of a 45-year-old woman admitted to the hospital suffering from acute respiratory failure. RESULTS Computer tomography in angiographic option (angio-CT) showed an extensive, irregular area of ground glass in both upper lobes and apical segments of the lower lobes of the lungs. A significant enlargement of both atria was also described. There was no improvement after cardiac treatment and patient was transferred to the pulmonary department where she was succesfully treated with systemic glucocortycosteroids. The patient remains under the supervision of the pulmonary out-patient department.
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Affiliation(s)
- Jan Siwiec
- Chair and Department of Pneumonology, Oncology and Allergology, Medical University, Lublin, Poland
| | - Elżbieta Siek
- 1st Department of Medical Radiology, Medical University, Lublin, Poland
| | - Anna Grzywa-Celińska
- Chair and Department of Pneumonology, Oncology and Allergology, Medical University, Lublin, Poland
| | - Barbara Mackiewicz
- Chair and Department of Pneumonology, Oncology and Allergology, Medical University, Lublin, Poland
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Pham XH, Hahm E, Huynh KH, Son BS, Kim HM, Jeong DH, Jun BH. 4-Mercaptobenzoic Acid Labeled Gold-Silver-Alloy-Embedded Silica Nanoparticles as an Internal Standard Containing Nanostructures for Sensitive Quantitative Thiram Detection. Int J Mol Sci 2019; 20:E4841. [PMID: 31569479 PMCID: PMC6801479 DOI: 10.3390/ijms20194841] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/20/2019] [Accepted: 09/26/2019] [Indexed: 12/21/2022] Open
Abstract
In this study, SiO2@Au@4-MBA@Ag (4-mercaptobenzoic acid labeled gold-silver-alloy-embedded silica nanoparticles) nanomaterials were investigated for the detection of thiram, a pesticide. First, the presence of Au@4-MBA@Ag alloys on the surface of SiO2 was confirmed by the broad bands of ultraviolet-visible spectra in the range of 320-800 nm. The effect of the 4-MBA (4-mercaptobenzoic acid) concentration on the Ag shell deposition and its intrinsic SERS (surface-enhanced Raman scattering) signal was also studied. Ag shells were well coated on SiO2@Au@4-MBA in the range of 1-1000 µM. The SERS intensity of thiram-incubated SiO2@Au@4-MBA@Ag achieved the highest value by incubation with 500 µL thiram for 30 min, and SERS was measured at 200 µg/mL SiO2@Au@4-MBA@Ag. Finally, the SERS intensity of thiram at 560 cm-1 increased proportionally with the increase in thiram concentration in the range of 240-2400 ppb, with a limit of detection (LOD) of 72 ppb.
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Affiliation(s)
- Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea.
| | - Eunil Hahm
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea.
| | - Kim-Hung Huynh
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea.
| | - Byung Sung Son
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea.
| | - Hyung-Mo Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea.
| | - Dae Hong Jeong
- Department of Chemistry Education, Seoul National University, Seoul 151-742, Korea.
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea.
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Jamdagni P, Rana JS, Khatri P. Comparative study of antifungal effect of green and chemically synthesised silver nanoparticles in combination with carbendazim, mancozeb, and thiram. IET Nanobiotechnol 2018; 12:1102-1107. [PMID: 30964021 PMCID: PMC8676014 DOI: 10.1049/iet-nbt.2018.5087] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 05/02/2018] [Accepted: 06/01/2018] [Indexed: 08/21/2023] Open
Abstract
This study reports synthesis and characterisation of silver nanoparticles and their effect on antifungal efficacy of common agricultural fungicides. Silver nanoparticles were synthesised using biological and chemical reduction methods employing Elettaria cardamomum leaf extract and sodium citrate, respectively. Nanoparticles were then characterised using UV-Visible spectroscopy, X-ray diffraction (XRD), transmission electron microscopy, and dynamic light scattering (DLS). While XRD assigned particles size of 31.86 nm for green and 41.91 nm for chemical silver nanoparticles with the help of the Debye-Scherrer formula, DLS specified monodisperse nature of both suspensions. Nanoparticles were tested individually and in combination with fungicides (carbendazim, mancozeb, and thiram) against fungal phytopathogens. Silver nanoparticles exhibited good antifungal activity and minimum inhibitory concentration (MIC) was observed in the range of 8-64 µg/ml. Also, they positively influenced the efficacy of fungicides. The mean MIC value (mean ± SD) for combination of all three fungicides with green AgNPs was 1.37 ± 0.6 µg/ml and for chemical AgNPs was 1.73 ± 1.0 µg/ml. Hence, it could be concluded that green AgNPs performed better than chemical AgNPs. Synergy was observed between green AgNPs and fungicides against Fusarium oxysporum. In conclusion, this study reports synthesis of monodisperse silver nanoparticles which serve as efficient antifungal agents and also enhance the fungicidal action of reported agricultural fungicides in combination studies.
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Affiliation(s)
- Pragati Jamdagni
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, Sonipat, Haryana, India.
| | - J S Rana
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, Sonipat, Haryana, India
| | - Poonam Khatri
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, Sonipat, Haryana, India
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Zhang M, Chen T, Liu Y, Zhang J, Sun H, Yang J, Zhu J, Liu J, Wu Y. Plasmonic 3D Semiconductor-Metal Nanopore Arrays for Reliable Surface-Enhanced Raman Scattering Detection and In-Site Catalytic Reaction Monitoring. ACS Sens 2018; 3:2446-2454. [PMID: 30335972 DOI: 10.1021/acssensors.8b01023] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
It is urgent to develop a rapid, reliable, and in-site determination method to detect or monitor trace amounts of toxic substances in the field. Here, we report an alternative surface-enhanced Raman scattering (SERS) method coupled with a portable Raman device on a plasmonic three-dimension (3D) hot spot sensing surface. Plasmonic Ag nanoparticles (AgNPs) were uniformly deposited on 3D TiO2 nanopore arrays as a sensitive SERS substrate, and further coated with graphene oxide (GO). We demonstrate the plasmon-induced SERS enhancement (5.8-fold) and the improvement of catalytic activity by incorporation of plasmonic AgNPs into the 3D TiO2 nanopore arrays. The modification of GO on the TiO2-Ag nanopore array further increases by a 6.2-fold Raman enhancement compared to TiO2-Ag while maintaining good uniformity (RSD < 10%). The optimized TiO2-Ag-GO substrate shows powerful quantitative detection potential for drug residues in fish scales via a simple scrubbing method, and the limit of detection (LOD) for crystal violet (CV) was 10-8 M. The SERS substrate also showed detection practicability of pesticide residues in banana peel with an LOD of 10-7 M. In addition, our TiO2-Ag-GO substrate exhibits excellent SERS self-monitoring performance for catalytic reduction of multiple organics in NaBH4 solution, and the substrate shows good recyclability of 6 cycles. Such a 3D TiO2-Ag-GO substrate is a promising SERS substrate with good sensitivity, uniformity, and reusability, and may be utilized for further miniaturization for point of analytical applications.
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Affiliation(s)
- Maofeng Zhang
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Tun Chen
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Yongkai Liu
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jiluan Zhang
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Haoran Sun
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jian Yang
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jiping Zhu
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jiaqin Liu
- Institute of Industry & Equipment Technology, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Yucheng Wu
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
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30
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Dies H, Siampani M, Escobedo C, Docoslis A. Direct Detection of Toxic Contaminants in Minimally Processed Food Products Using Dendritic Surface-Enhanced Raman Scattering Substrates. Sensors (Basel) 2018; 18:E2726. [PMID: 30126248 PMCID: PMC6111781 DOI: 10.3390/s18082726] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/15/2018] [Accepted: 08/17/2018] [Indexed: 12/17/2022]
Abstract
We present a method for the surface-enhanced Raman scattering (SERS)-based detection of toxic contaminants in minimally processed liquid food products, through the use of a dendritic silver nanostructure, produced through electrokinetic assembly of nanoparticles from solution. The dendritic nanostructure is produced on the surface of a microelectrode chip, connected to an AC field with an imposed DC bias. We apply this chip for the detection of thiram, a toxic fruit pesticide, in apple juice, to a limit of detection of 115 ppb, with no sample preprocessing. We also apply the chip for the detection of melamine, a toxic contaminant/food additive, to a limit of detection of 1.5 ppm in milk and 105 ppb in infant formula. All the reported limits of detection are below the recommended safe limits in food products, rendering this technique useful as a screening method to identify liquid food with hazardous amounts of toxic contaminants.
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Affiliation(s)
- Hannah Dies
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L 3N6, Canada.
| | - Maria Siampani
- Department of Chemistry, University of Ioannina, GR-54110 Ioannina, Greece.
| | - Carlos Escobedo
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L 3N6, Canada.
| | - Aristides Docoslis
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L 3N6, Canada.
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Zhang H, Mehmood K, Li K, Rehman MU, Jiang X, Huang S, Wang L, Zhang L, Tong X, Nabi F, Yao W, Iqbal MK, Shahzad M, Li J. Icariin Ameliorate Thiram-Induced Tibial Dyschondroplasia via Regulation of WNT4 and VEGF Expression in Broiler Chickens. Front Pharmacol 2018. [PMID: 29527166 PMCID: PMC5829035 DOI: 10.3389/fphar.2018.00123] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tibial dyschondroplasia (TD) is main bone problem in fast growing poultry birds that effect proximal growth plate (GP) of tibia bone. TD is broadly defined as non-vascularized and non-mineralized, and enlarged GP with tibia bone deformation and lameness. Icariin (Epimedium sagittatum) is a traditional Chinese medicine, which is commonly practiced in the treatment of various bone diseases. Recently, many researcher reports about the beneficial effects of icariin in relation to various types of bone conditions but no report is available about promoting effect of icariin against TD. Therefore, current study was conducted to explore the ameliorating effect of icariin in thiram-induced TD chickens. A total of 180 broiler chicks were equally distributed in three groups; control, TD induced by thiram (50 mg/kg), and icariin group (treated with icariin @10 mg/kg). All groups were administered with normal standard diet ad libitum regularly until the end of experiment. The wingless-type member 4 (WNT4) and vascular endothelial growth factor (VEGF) genes and proteins expression were analyzed by quantitative real-time polymerase chain reaction and western blot analysis respectively. Tibial bone parameters, physiological changes in serum, antioxidant enzymes, and chicken growth performance were determined to assess advantage and protective effect of the medicine in broiler chicken. The expression of WNT4 was decreased while VEGF increased significantly (P < 0.05) in TD affected chicks. TD enhanced the GP, lameness, and irregular chondrocytes, while reduced the liver function, antioxidant enzymes in liver, and performance of chickens. Icariin treatment up-regulated WNT4 and down-regulated VEGF gene and protein expressions significantly (P < 0.05), restored the GP width, increased growth performance, corrected liver functions and antioxidant enzymes levels in liver, and mitigated the lameness in broiler chickens. In conclusion, icariin administration recovered GP size, normalized performance and prevented lameness significantly. Therefore, icariin treatments are encouraged to reduce the incidence of TD in broiler chickens.
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Affiliation(s)
- Hui Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Khalid Mehmood
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,University College of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Kun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Mujeeb U Rehman
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xiong Jiang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Shucheng Huang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lei Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lihong Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xiaole Tong
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Fazul Nabi
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Muhammad K Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Muhammad Shahzad
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,University College of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, China
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32
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Long TE. Repurposing Thiram and Disulfiram as Antibacterial Agents for Multidrug-Resistant Staphylococcus aureus Infections. Antimicrob Agents Chemother 2017; 61:e00898-17. [PMID: 28674046 DOI: 10.1128/AAC.00898-17] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 06/25/2017] [Indexed: 11/20/2022] Open
Abstract
Thiram and disulfiram were evaluated as antibacterial agents against multidrug-resistant Staphylococcus aureus Against a 30-member panel comprised of vancomycin-susceptible, vancomycin-intermediate, and vancomycin-resistant S. aureus strains, the MIC90 values of the respective test agents were 4 and 16 μg/ml. Additional analyses revealed that thiram and disulfiram are rapid-acting bacteriostatic agents with narrow, Gram-positive-bacterium spectrum activity. Synergy studies further determined that disulfiram increases the vancomycin susceptibility of three clinical vancomycin-resistant S. aureus strains in vitro, thus establishing a potential use in combination therapy.
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Abstract
The conclusions of EFSA following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State France and co‐rapporteur Member State Belgium for the pesticide active substance thiram are reported. The context of the peer review was that required by Commission Implementing Regulation (EU) No 844/2012. The conclusions were reached on the basis of the evaluation of the representative uses of thiram as a fungicide on apple, pear, cherry, strawberry, peach and maize. The reliable end points, appropriate for use in regulatory risk assessment, are presented. Missing information identified as being required by the regulatory framework is listed. Concerns are identified.
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Khlebtsov BN, Khanadeev VA, Panfilova EV, Bratashov DN, Khlebtsov NG. Gold nanoisland films as reproducible SERS substrates for highly sensitive detection of fungicides. ACS Appl Mater Interfaces 2015; 7:6518-29. [PMID: 25764374 DOI: 10.1021/acsami.5b01652] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A wet-chemical approach is used to fabricate centimeter-scale gold nanoisland films (NIFs) with tunable morphology of islands and with strong electromagnetic coupling between them. The approach consists in a uniform seeding of small gold nanoparticles on a glass or silicon substrate, followed by controllable growth of the seeds into small nanoislands. A special technique for TEM sampling was developed to follow the gradual formation of larger-sized isolated nanoparticles, nanoislands of sintered overgrown seeds, and a complete gold layer with nanoscale cracks. The electromagnetic field distribution inside the fabricated NIFs was calculated by FDTD simulations applied to actual TEM images of the fabricated samples rather than to artificial models commonly used. SERS measurements with 1,4-aminothiophenol (ATP) molecules demonstrated the analytical enhancement factor about of 10(7) and the fundamental enhancement factor about of 10(8) for optimized substrates. These values were at least 1 order of magnitude higher than that for self-assembled arrays of gold nanostars and silver nanocubes. SERS spectra of independent samples demonstrated good sample-to-sample reproducibility in terms of the relative standard deviation (RSD) of the main peaks less than 20%. Additionally, Raman maps with 1 μm increment in X-Y directions of NIFs (800 spectral spots) demonstrated good point-to-point repeatability in the intensity of the main Raman vibration modes (RSD varied from 5% to 15% for 50 randomly selected points). A real-life application of the fabricated SERS substrates is exemplified by the detection of the thiram fungicide in apple peels within the 5-250 ppb linear detection range. Specifically, the NIF-based SERS technology detected thiram on apple peel down to level of 5 ng/cm(2).
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Affiliation(s)
- Boris N Khlebtsov
- †Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
- ‡Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russia
| | - Vitaly A Khanadeev
- †Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
- ‡Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russia
| | - Elizaveta V Panfilova
- †Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
| | - Daniil N Bratashov
- ‡Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russia
| | - Nikolai G Khlebtsov
- †Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
- ‡Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russia
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35
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Yang T, Guo X, Wang H, Fu S, Yu J, Wen Y, Yang H. Au dotted magnetic network nanostructure and its application for on-site monitoring femtomolar level pesticide. Small 2014; 10:1325-1331. [PMID: 24130070 DOI: 10.1002/smll.201302604] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 09/07/2013] [Indexed: 06/02/2023]
Abstract
A novel magnetically responsive and surface-enhanced Raman spectroscopy (SERS) active nanocomposite is designed and prepared by direct grafting of Au nanoparticles onto the surface of magnetic network nanostructure (MNN) with the help of a nontoxic and environmentally friendly reagent of inositol hexakisphosphate shortly named as IP6. The presence of IP6 as a stabilizer and a bridging agent could weave Fe3O4 nanoparticles (NPs) into magnetic network nanostructure, which is easily dotted with Au nanoparticles (Au NPs). It has been shown firstly that the huge Raman enhancement of Au-MNN is reached by an external magnetic collection. Au-MNN presenting the large surface and high detection sensitivity enables it to exhibit multifunctional applications involving sufficient adsorption of dissolved chemical species for enrichment, separation, as well as a Raman amplifier for the analysis of trace pesticide residues at femtomolar level by a portable Raman spectrometer. Therefore, such multifunctional nanocomposites can be developed as a smart and promising nanosystem that integrates SERS approach with an easy assay for concentration by an external magnet for the effective on-site assessments of agricultural and environmental safety.
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Affiliation(s)
- Tianxi Yang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials and Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China
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Osman AG, Sherif AM, Elhussein AA, Mohamed AT. Sensitivity of some nitrogen fixers and the target pest Fusarium oxysporum to fungicide thiram. Interdiscip Toxicol 2012; 5:25-9. [PMID: 22783146 DOI: 10.2478/v10102-012-0005-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 03/10/2012] [Accepted: 03/18/2012] [Indexed: 11/20/2022] Open
Abstract
This study was carried out to investigate the toxic effects of the fungicide thiram (TMTD) against five nitrogen fixers and the thiram target pest Fusarium oxysporum under laboratory conditions. Nitrogen fixing bacteria Falvobacterium showed the highest values of LD50 and proved to be the most resistant to the fungicide followed by Fusarium oxysporum, while Pseudomonas aurentiaca was the most affected microorganism. LD50 values for these microorganisms were in 2–5 orders of magnitude lower in comparison with LD50 value for Fusarium oxysporum. Thiram was most toxic to Pseudomonas aurentiaca followed by Azospirillum. The lowest toxicity index was recorded for Fusarium oxysporum and Flavobacterium. The slope of the curve for Azomonas, Fusarium oxysporum and Flavobacterium is more steep than that of the other curves, suggesting that even a slight increase of the dose of the fungicide can cause a very strong negative effect. Thiram was more selective to Pseudomonas aurentiaca followed by Azospirillum, Rhizobium meliloti and Azomonas. The lowest selectivity index of the fungicide was recorded for Falvobacterium followed by Fusarium oxysporum. The highest safety coefficient of the fungicide was assigned for Flavobacterium, while Pseudomonas aurentiaca showed the lowest value.
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Dan H, Simsa-Maziel S, Reich A, Sela-Donenfeld D, Monsonego-Ornan E. The role of matrix gla protein in ossification and recovery of the avian growth plate. Front Endocrinol (Lausanne) 2012; 3:79. [PMID: 22787455 PMCID: PMC3392708 DOI: 10.3389/fendo.2012.00079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 05/31/2012] [Indexed: 11/13/2022] Open
Abstract
Extracellular matrix mineralization is an essential physiologic process in bone, teeth, and hypertrophic cartilage. Matrix Gla protein (MGP), an inhibitor of mineralization, is expressed by chondrocytes and vascular smooth muscle cells to inhibit calcification of those soft tissues. Tibial dyschondroplasia (TD), a skeletal abnormality apparent as a plug of non-vascularized, non-mineralized, white opaque cartilage in the tibial growth plate of avian species can serve as a good model for studying process and genes involved in matrix mineralization and calcification. In this work, we studied the involvement of MGP in the development of TD, as well as in the processes of spontaneous and induced recovery from this syndrome. First, we found that during normal bone development, MGP is expressed in specific time and locations, starting from wide-spread expression in the yet un-ossified diaphysis during embryonic development, to specific expression in hypertrophic chondrocytes adjacent to the chondro-osseous junction and the secondary ossification center just prior to calcification. In addition, we show that MGP is not expressed in the impaired TD lesion, however when the lesion begins to heal, it strongly express MGP prior to its calcification. Moreover, we show that when calcification is inhibited, a gap is formed between the expression zones of MGP and BMP2 and that this gap is closed during the healing process. To conclude, we suggest that MGP, directly or through interaction with BMP2, plays a role as ossification regulator that acts prior to ossification, rather then simple inhibitor.
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Affiliation(s)
- Harel Dan
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew UniversityRehovot, Israel
| | - Stav Simsa-Maziel
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew UniversityRehovot, Israel
| | - Adi Reich
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew UniversityRehovot, Israel
| | - Dalit Sela-Donenfeld
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew UniversityRehovot, Israel
| | - Efrat Monsonego-Ornan
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew UniversityRehovot, Israel
- *Correspondence: Efrat Monsonego-Ornan, Institute of Biochemistry and Nutrition, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University, P.O. Box 12, Rehovot 76100, Israel. e-mail:
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Marikovsky M. Thiram inhibits angiogenesis and slows the development of experimental tumours in mice. Br J Cancer 2002; 86:779-87. [PMID: 11875743 PMCID: PMC2375322 DOI: 10.1038/sj.bjc.6600078] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2001] [Revised: 11/12/2001] [Accepted: 11/13/2001] [Indexed: 11/09/2022] Open
Abstract
Thiram-tetramethylthiuram disulphide--a chelator of heavy metals, inhibited DNA synthesis and induced apoptosis in cultured bovine capillary endothelial cells. Bovine capillary endothelial cells were 10-60-fold more sensitive to thiram than other cell types. These effects were prevented by addition of antioxidants, indicating involvement of reactive oxygen species. Exogenously added Cu2+ impeded specifically and almost completely the inhibitory effect of thiram for bovine capillary endothelial cells. Moreover, thiram had markedly inhibited human recombinant Cu/Zn superoxide dismutase enzymatic activity (85%) in vitro. Moreover, PC12-SOD cells with elevated Cu/Zn superoxide dismutase were less sensitive to thiram treatment than control cells. These data indicate that the effects of thiram are mediated by inhibition of Cu/Zn superoxide dismutase activity. Oral administration of thiram (13-30 microg mouse(-1)), inhibited angiogenesis in CD1 nude mice. Tumour development is known to largely depend on angiogenesis. We found that oral administration of thiram (30 microg) to mice caused significant inhibition of C6 glioma tumour development (60%) and marked reduction (by 3-5-fold) in metastatic growth of Lewis lung carcinoma. The data establish thiram as a potential inhibitor of angiogenesis and raise the possibility for its use as therapy in pathologies in which neovascularisation is involved, including neoplasia.
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Affiliation(s)
- M Marikovsky
- Department of Animal Sciences, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel.
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