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Zou Z, Robinson JI, Steinberg LK, Henderson JP. Uropathogenic Escherichia coli wield enterobactin-derived catabolites as siderophores. J Biol Chem 2024; 300:105554. [PMID: 38072063 PMCID: PMC10788543 DOI: 10.1016/j.jbc.2023.105554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/20/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023] Open
Abstract
Uropathogenic Escherichia coli (UPEC) secrete multiple siderophore types to scavenge extracellular iron(III) ions during clinical urinary tract infections, despite the metabolic costs of biosynthesis. Here, we find the siderophore enterobactin (Ent) and its related products to be prominent components of the iron-responsive extracellular metabolome of a model UPEC strain. Using defined Ent biosynthesis and import mutants, we identify lower molecular weight dimeric exometabolites as products of incomplete siderophore catabolism, rather than prematurely released biosynthetic intermediates. In E. coli, iron acquisition from iron(III)-Ent complexes requires intracellular esterases that hydrolyze the siderophore. Although UPEC are equipped to consume the products of completely hydrolyzed Ent, we find that Ent and its derivatives may be incompletely hydrolyzed to yield products with retained siderophore activity. These results are consistent with catabolic inefficiency as means to obtain more than one iron ion per siderophore molecule. This is compatible with an evolved UPEC strategy to maximize the nutritional returns from metabolic investments in siderophore biosynthesis.
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Affiliation(s)
- Zongsen Zou
- Center for Women's Infectious Diseases Research, Washington University School of Medicine, St Louis, Missouri, USA; Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, Missouri, USA
| | - John I Robinson
- Center for Women's Infectious Diseases Research, Washington University School of Medicine, St Louis, Missouri, USA; Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, Missouri, USA
| | - Lindsey K Steinberg
- Center for Women's Infectious Diseases Research, Washington University School of Medicine, St Louis, Missouri, USA; Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, Missouri, USA
| | - Jeffrey P Henderson
- Center for Women's Infectious Diseases Research, Washington University School of Medicine, St Louis, Missouri, USA; Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, Missouri, USA.
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2
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Sghaier RB, Labidi A, Abdallah MA, Latrous L, Megriche A. Green magnetic snail shell hydroxyapatite sorbent for reliable solid-phase extraction of pesticides from water samples. J Sep Sci 2023; 46:e2300290. [PMID: 37582642 DOI: 10.1002/jssc.202300290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/07/2023] [Accepted: 08/07/2023] [Indexed: 08/17/2023]
Abstract
To address sustainability issues, the green synthesis of nanomaterials has recently received considerable attention. This article addresses a novel and cost-effective adsorbent for the extraction of eight phenyl-N-methylcarbamate insecticides from water samples. We first synthesized a magnetite/hydroxyapatite nanocomposite using snail shell powder via an environmental friendly approach. The morphology and physicochemical properties of magnetic hydroxyapatite were characterized by Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. Magnetic extraction parameters were optimized using a Doehlert matrix. Under optimum conditions, the magnetic extraction coupled with a LC-MS method shows good linearity with R2 ≥ 0.9982, suitable intra- and interday precision, and limits of detection and quantification in the range of 0.052-0.093 μg/L and 0.11-0.31 μg/L, respectively. Satisfactory relative recoveries of all carbamates were achieved from fortified water samples in the range of 93.89-101.01%.
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Affiliation(s)
- Rafika Ben Sghaier
- Laboratory of Composite Materials and Clay Minerals, National Center of Researches in Material Sciences, Technopole Borj Cédria, Soliman, Tunisia
- Laboratoire de Chimie Minérale appliquée (LR19ES02), Faculté des Sciences de Tunis, Université de Tunis El Manar, Campus universitaire El Manar I, Tunis, Tunisia
| | - Aymen Labidi
- Laboratoire National de Contrôle Des Médicaments, 11 bis Rue Jebel Lakhdar Bab Saadoun, Tunis, Tunisia
| | - Marwa Aouled Abdallah
- Laboratoire de Chimie Minérale appliquée (LR19ES02), Faculté des Sciences de Tunis, Université de Tunis El Manar, Campus universitaire El Manar I, Tunis, Tunisia
| | - Latifa Latrous
- Laboratoire de Chimie Minérale appliquée (LR19ES02), Faculté des Sciences de Tunis, Université de Tunis El Manar, Campus universitaire El Manar I, Tunis, Tunisia
- Institut Préparatoire aux Etudes d'Ingénieurs El Manar, Département de Chimie, El Manar, Tunisia
| | - Adel Megriche
- Laboratoire de Chimie Minérale appliquée (LR19ES02), Faculté des Sciences de Tunis, Université de Tunis El Manar, Campus universitaire El Manar I, Tunis, Tunisia
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Zou Z, Robinson JI, Steinberg LK, Henderson JP. Uropathogenic Escherichia coli wield enterobactin-derived catabolites as siderophores. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.25.550588. [PMID: 37546885 PMCID: PMC10402112 DOI: 10.1101/2023.07.25.550588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Uropathogenic E. coli (UPEC) secrete multiple siderophore types to scavenge extracellular iron(III) ions during clinical urinary tract infections, despite the metabolic costs of biosynthesis. Here we find the siderophore enterobactin and its related products to be prominent components of the iron-responsive extracellular metabolome of a model UPEC strain. Using defined enterobactin biosynthesis and import mutants, we identify lower molecular weight, dimeric exometabolites as products of incomplete siderophore catabolism, rather than prematurely released biosynthetic intermediates. In E. coli, iron acquisition from iron(III)-enterobactin complexes requires intracellular esterases that hydrolyze the siderophore. Although UPEC are equipped to consume the products of completely hydrolyzed enterobactin, we find that enterobactin and its derivatives may be incompletely hydrolyzed to yield products with retained siderophore activity. These results are consistent with catabolic inefficiency as means to obtain more than one iron ion per siderophore molecule. This is compatible with an evolved UPEC strategy to maximize the nutritional returns from metabolic investments in siderophore biosynthesis.
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Affiliation(s)
- Zongsen Zou
- Center for Women’s Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Internal Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, Missouri, USA
| | - John I. Robinson
- Center for Women’s Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Internal Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Lindsey K. Steinberg
- Center for Women’s Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Internal Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jeffrey P. Henderson
- Center for Women’s Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Internal Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, Missouri, USA
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4
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Jin Y, Hu D, Shi C, Chen Q, Lu Y, Chen J. Development of a Pt-graphene nanocomposite-based solid-phase extraction coupled with ultra-performance liquid chromatography-tandem mass spectrometry for the determination of carbamate pesticides in fish. ANAL SCI 2023:10.1007/s44211-023-00322-8. [PMID: 37000321 DOI: 10.1007/s44211-023-00322-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/09/2023] [Indexed: 04/01/2023]
Abstract
In the present work, a potential solid-phase extraction (SPE) material based on graphene anchored with platinum nanoparticles (Pt-Graphene) was prepared and characterized by scanning electron micrographs and transmission electron micrograph. The carbamates residues in fish were enriched by SPE filled with Pt-Graphene and detected by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The proposed extraction protocol exhibited satisfactory recoveries (76.5-115.6%), low limit of quantitation values in μg kg-1 level, and good precision for the studied ten carbamates. These results demonstrated the feasibility of the proposed protocol. The developed Pt-Graphene nanoparticles showed excellent performance for extracting analytes at trace levels, indicating that it could be used as a potential SPE sorbent in food residue analysis.
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Affiliation(s)
- Yating Jin
- Collaborative Innovation Center of Seafood Deep Processing, Joint Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Di Hu
- Collaborative Innovation Center of Seafood Deep Processing, Joint Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Cui Shi
- Collaborative Innovation Center of Seafood Deep Processing, Joint Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Qianqian Chen
- Collaborative Innovation Center of Seafood Deep Processing, Joint Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Yanbin Lu
- Collaborative Innovation Center of Seafood Deep Processing, Joint Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, 310012, China.
| | - Juanjuan Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, School of Marine Sciences, Ningbo University, Ningbo, 315832, China.
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Concentration levels and risk assessment of organochlorine and organophosphate pesticide residue in selected cereals and legumes sold in Anambra State, south-eastern Nigeria. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Abstract
The levels of organochlorine and organophosphate pesticide residues in selected cereal crops (beans, cowpea, millet, maize, sorghum, and rice) purchased from major markets in Anambra, south-eastern Nigeria, were assessed and compared with established MRLs. The QuEChERS (quick, easy, cheap, effective, rugged, and safe) method was used for extraction and clean-up of pesticide residues. Thereafter detection and quantification were done using GC/MS. The result reveals that the analysed grain samples contained some organochlorine pesticides and organophosphates. The organochlorine was most dominant followed by the organophosphates. Organochlorine pesticide residues varied from 0.048 to 0.298 mg/kg in beans, BDL to 0.398 mg/kg in cowpea, 0.018–0.337 mg/kg in maize, 0.023–0.375 mg/kg in millet, 0.058–0.415 mg/kg in sorghum and 0.045–0.442 mg/kg in rice while organophosphate pesticide residue varied from BDL to 0.315 mg/kg in beans, BDL to 0.113 mg/kg in cowpea, BDL to 0.228 mg/kg in maize, BDL to 0.253 mg/kg in millet, BDL to 0.218 mg/kg in sorghum and BDL to 2.1 35 mg/kg in rice. Highest concentration of endosulphan II (0.442 mg/kg) was detected in rice, followed by aldrin (0.415 mg kg−1) in sorghum and endosulphan II (0.40 mg/kg) in sorghum. The pesticide toxicity index (PTI) was above one (1), whereas health index (HI) was less than one (1) and cancer risk were within USEPA reference guideline for crops indicating children will have greater health effect than adults. Hence, strict monitoring and control of pesticide residues in agricultural products is advocated.
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Wu E, Zhang J, Chen W, Wang Y, Yin H. Comparative pharmacokinetic study of nine bioactive components in osteoarthritis rat plasma using ultra-performance liquid chromatography-tandem mass spectrometry after single and combined oral administration of Epimedii Folium and Chuanxiong Rhizoma extracts. Biomed Chromatogr 2023; 37:e5518. [PMID: 36201235 DOI: 10.1002/bmc.5518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/28/2022] [Accepted: 10/04/2022] [Indexed: 12/15/2022]
Abstract
The herb pair Epimedii Folium-Chuanxiong Rhizoma (EF-CR), derived from the classical traditional Chinese medicine 'Xian Ling Pi San', has a distinctive compatibility therapeutic profile and is clinically safe and effective. This study aimed to investigate and compare the pharmacokinetic characteristics of nine analytes in osteoarthritis (OA) rat plasma after the oral administration of EF, CR or a combination of these two herbs. We developed an ultra-performance liquid chromatography method coupled with quadrupole linear ion-trap mass spectrometry to simultaneously quantify and assess the pharmacokinetics of icariin, epimedin A, epimedin B, epimedin C, icariside I, icariside II, ferulic acid, ligustilide and senkyunolide A of the EF-CR pair in the plasma of osteoarthritic rats. The pharmacokinetic parameters showed that the absorption of multiple components was significantly enhanced and residence time was prolonged in the EF-CR group (P < 0.05) compared to the single-herb group. These parameters revealed that the combination of EF and CR exhibited synergistic effects of the nine bioactive components, suggesting the potential application of the EF-CR combination for the treatment of OA.
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Affiliation(s)
- Enhui Wu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.,Standardization of Chinese Medicine Research Laboratory, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianhua Zhang
- Department of Osteopathy and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenjun Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.,Standardization of Chinese Medicine Research Laboratory, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yahong Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.,Standardization of Chinese Medicine Research Laboratory, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hua Yin
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.,Standardization of Chinese Medicine Research Laboratory, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
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Yang B, Ma W, Wang S, Shi L, Li X, Ma Z, Zhang Q, Li H. Determination of eight neonicotinoid insecticides in Chinese cabbage using a modified QuEChERS method combined with ultra performance liquid chromatography-tandem mass spectrometry. Food Chem 2022; 387:132935. [DOI: 10.1016/j.foodchem.2022.132935] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/26/2022] [Accepted: 04/07/2022] [Indexed: 11/04/2022]
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8
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Bùi NKN, Selberg S, Herodes K, Leito I. Coumarin-based derivatization reagent for the LC-MS analysis of amino acids. Talanta 2022; 252:123730. [DOI: 10.1016/j.talanta.2022.123730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 10/16/2022]
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9
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Freitas C, Machado LS, Pereira I, da Silva RR, dos Santos GF, Chaves AR, Simas RC, Lima GS, Vaz BG. Assessing organophosphorus and carbamate pesticides in maize samples using MIP extraction and PSI-MS analyzes. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:2510-2515. [PMID: 35602426 PMCID: PMC9114180 DOI: 10.1007/s13197-022-05464-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 02/07/2022] [Accepted: 04/03/2022] [Indexed: 06/03/2023]
Abstract
The indiscriminate utilization of agrochemicals causes environmental and animal life impacts. In this regard, methodologies have been developed to offer efficiency and quickness for agrochemicals detection. Due to their selectivity and molecular recognition sites, Molecular Imprinted Polymer (MIPs) have been widely employed in some areas, including biotechnology, waste analyses, foodstuff, biological fluids, and others. This work proposed developing a method to determine aminocarb, pirimicarb, dimethoate, omethoate, pyridaphenthion, and fenitrothion pesticides using molecularly imprinted polymer combined with solid-phase extraction (MIP-SPE) for clean-up and paper spray ionization mass spectrometry for their analysis. Extractions analysis for Aminocarb, Pirimicarb, and Omethoate using MIP-SPE showed better performance when compared with MIP and NIP. The R 2 values were found with R 2 > 0.98 for all pesticides, and LODs and LOQs values were 50 and 100 µg kg-1, respectively. The precision and accuracy were assessed at three concentration levels-low, medium, and high. The precision values (interday and intraday) were below 10%, and the variation of recovery was between 80 and 120% for all pesticides. Therefore, it was possible to verify the presence of two carbamates and five organophosphorus without the necessity of preconcentration samples with precision and good recovery. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-022-05464-7.
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Affiliation(s)
- Carla Freitas
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
| | - Lucas S. Machado
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
| | - Igor Pereira
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
| | - Rodolfo R. da Silva
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
| | | | - Andrea R. Chaves
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
| | - Rosineide C. Simas
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
| | - Gesiane S. Lima
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
| | - Boniek G. Vaz
- Chemistry Institute, Federal University of Goiás, Goiânia, GO 74690-900 Brazil
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A Simple and Reliable Dispersive Liquid-Liquid Microextraction with Smartphone-Based Digital Images for Determination of Carbaryl Residues in Andrographis paniculata Herbal Medicines Using Simple Peroxidase Extract from Senna siamea Lam. Bark. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103261. [PMID: 35630744 PMCID: PMC9147045 DOI: 10.3390/molecules27103261] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/22/2022] [Accepted: 05/17/2022] [Indexed: 02/01/2023]
Abstract
A simple and reliable dispersive liquid-liquid microextraction (DLLME) coupled with smartphone-based digital images using crude peroxidase extracts from cassia bark (Senna siamea Lam.) was proposed to determine carbaryl residues in Andrographis paniculata herbal medicines. The method was based on the reaction of 1-naphthol (hydrolysis of carbaryl) with 4-aminoantipyrine (4-AP) in the presence of hydrogen peroxide, using peroxidase enzyme simple extracts from cassia bark as biocatalysts under pH 6.0. The red product, after preconcentration by DLLME using dichloromethane as extraction solvent, was measured for blue intensity by daily life smartphone-based digital image analysis. Under optimized conditions, good linearity of the calibration graph was found at 0.10–0.50 mg·L−1 (r2 = 0.9932). Limits of detection (LOD) (3SD/slope) and quantification (LOQ) (10SD/slope) were 0.03 and 0.09 mg·L−1, respectively, with a precision of less than 5%. Accuracy of the proposed method as percentage recovery gave satisfactory results. The proposed method was successfully applied to analyze carbaryl in Andrographis paniculata herbal medicines. Results agreed well with values obtained from the HPLC-UV method at 95% confidence level. This was simple, convenient, reliable, cost-effective and traceable as an alternative method for the determination of carbaryl.
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Liu X, Sun X, Cao J. [Simultaneous determination of eight carbamate pesticide residues in tomato, rice, and cabbage by online solid phase extraction/purification-high performance liquid chromatography-tandem mass spectrometry]. Se Pu 2021; 39:1324-1330. [PMID: 34812004 PMCID: PMC9404031 DOI: 10.3724/sp.j.1123.2021.01028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Indexed: 11/25/2022] Open
Abstract
Carbamate pesticides are a class of synthetic pesticides having wide antimicrobial spectrum, good insecticidal efficacy, and a short residual period. These pesticides are used in agriculture, forestry, and animal husbandry. Their widespread use in the last two decades has led to the existence of drug residues in the environment, which are transferred to food, thereby raising concerns regarding the potential threat to human health. Rapid and accurate detection of carbamate pesticide residues in food is of great significance for food safety, and this requires pretreatment to purify the target components and maximize the accuracy and precision of the analysis. A rapid and accurate analytical method based on online solid phase extraction/purification-high performance liquid chromatography-tandem mass spectrometry (online SPE-HPLC-MS/MS) was established for the determination of eight carbamate pesticides in tomato, rice, and cabbage. About 5.0 g of tomato (without water), 2.0 g of cabbage, and 2.0 g of rice (mixed with 3 mL of water) were vortexed at 1000 r/min for 1 min. After adding 2 g of sodium chloride and 10 mL of acetonitrile containing 0.5% (v/v) formic acid, the samples were extracted and centrifuged. The supernatants were combined after the samples were extracted again. The reconstituted solutions were then purified on a CAPCELL PAK C18 column (50 mm×2.0 mm, 15 μm). When the volume ratio of 0.1% (v/v) formic acid aqueous solution and acetonitrile (used as the mobile phases) was 90∶10 and 35∶65, the eight carbamate pesticides could be completely adsorbed and eluted. The carbamate pesticides were separated on an ACQUITY UPLC CSH C18 column (100 mm×2.1 mm, 1.7 μm) under gradient elution and analyzed in the multiple reaction monitoring (MRM) mode with positive electrospray ionization (ESI+). Under the optimum conditions, the calibration curves of the eight carbamate pesticide residues showed good linearity (r>0.995) within their respective linear ranges. The limits of quantification (LOQs) and limits of detection (LODs) were in the range of 0.05-1.0 ng/mL (S/N=10) and 0.01-0.3 ng/mL (S/N=3). The recoveries were in the range of 73.76%-112.32% at three spiked levels (2, 10, and 20 ng/mL), with relative standard deviations of 1.28%-13.14% (n=6). The online purification method showed better enrichment and purification ability for the target substances than did the offline purification method and greatly improved the pretreatment efficiency. The loading and purification could be completed within 12 min. The developed method has the advantages of high recovery rate, good reproducibility, accuracy, rapidness, sensitivity, and environment friendliness. It can be used for the determination of the eight carbamate pesticides in plant foods, such as tomato, rice, and cabbage.
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Affiliation(s)
- Xin Liu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Institutes for Food and Drug Control, Beijing 100050, China
| | - Xiulan Sun
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jin Cao
- National Institutes for Food and Drug Control, Beijing 100050, China
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Lv S, Wu X, Guan J, Yan Y, Ge M, Zhu G. Quantification and Confirmation of Zearalenone Using a LC-MS/MS QTRAP System in Multiple Reaction Monitoring and Enhanced Product Ion Scan Modes. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-01985-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Chen ZJ, Wu HL, Xiao ZL, Fu HJ, Shen YD, Luo L, Wang H, Lei HT, Hongsibsong S, Xu ZL. Rational hapten design to produce high-quality antibodies against carbamate pesticides and development of immunochromatographic assays for simultaneous pesticide screening. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125241. [PMID: 33550127 DOI: 10.1016/j.jhazmat.2021.125241] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/12/2021] [Accepted: 01/23/2021] [Indexed: 06/12/2023]
Abstract
Carbamate pesticides (CPs) are the most used pesticides in agricultural production and pest control. In this study, carbofuran, isoprocarb and carbaryl were employed as models, and a general hapten strategy based on carbamate moiety recognition was proposed. Molecular modeling of the three-dimensional (3D) structure and surface electrostatic potential of the CPs indicated that the amide group formed by conjugation significantly influenced recognition by antibodies. The proposed strategy was used to obtain three sensitive and specific monoclonal antibodies (mAbs) with IC50 values of 1.4 ng/mL, 8.4 ng/mL and 13.8 ng/mL for carbofuran, isoprocarb and carbaryl, respectively. Negligible cross-reactivity (%) with analogs was observed, except for fenobucarb (84.6%) for isoprocarb. The obtained antibodies were used to develop an immunochromatographic assay (ICA) to simultaneously and quantitatively detect the three CPs. A strip reader was used to determine the limits of quantitation (LOQs) as 0.05 ng/mL (carbofuran), 31.3 ng/mL (isoprocarb) and 31.3 ng/mL (carbaryl). The recoveries of cucumber and Chinese cabbage samples ranged from 76% to 111%, with CVs from 1.3% to 10.6%, indicating good potential for the rapid simultaneous detection of multiple pesticide residues in a large batch of samples.
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Affiliation(s)
- Zi-Jian Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Hui-Ling Wu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Zhi-Li Xiao
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China.
| | - Hui-Jun Fu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yu-Dong Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Lin Luo
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Hong-Tao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Surat Hongsibsong
- Research Institute for Health Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China.
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Choi NR, Yoon YJ, Park KT, Kim KA, Kim YP, Ahn YG, Lee JY. Trace Level Determination of Saccharides in Pristine Marine Aerosols by Gas Chromatography-Tandem Mass Spectrometry. TOXICS 2021; 9:86. [PMID: 33920550 PMCID: PMC8073057 DOI: 10.3390/toxics9040086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 11/17/2022]
Abstract
The quantification and identification of saccharides in pristine marine aerosols can provide useful information for determining the contributions of anthropogenic and natural sources of the aerosol. However, individual saccharide compounds in pristine marine aerosols that exist in trace amounts are difficult to analyze due to their low concentrations. Thus, in this study, we applied gas chromatography-tandem mass spectrometry (GC-MS/MS) in multiple reaction monitoring (MRM) mode to analyze the particulate matter with an aerodynamic diameter equal or less than 2.5 μm (PM2.5) samples, and the results were compared with those of conventional GC-MS. To investigate the chemical properties of pristine marine aerosols, 12 PM2.5 samples were collected while aboard Araon, an ice-breaking research vessel (IBRV), as it sailed from Incheon, South Korea to Antarctica. The method detection limits of GC-MS/MS for 10 saccharides were 2-22-fold lower than those of GC-MS. Consequently, the advantages of GC-MS/MS include (1) more distinct peak separations, enabling the accurate identification of the target saccharides and (2) the quantification of all individual saccharide compounds with concentrations outside the quantifiable range of GC-MS. Accordingly, the time resolution for sampling saccharides in pristine marine aerosols can be improved with GC-MS/MS.
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Affiliation(s)
- Na-Rae Choi
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Korea; (N.-R.C.); (K.-A.K.)
| | - Yong-Jun Yoon
- Division of Polar Climate Sciences, Korea Polar Research Institute, Incheon 21990, Korea; (Y.-J.Y.); (K.-T.P.)
| | - Ki-Tae Park
- Division of Polar Climate Sciences, Korea Polar Research Institute, Incheon 21990, Korea; (Y.-J.Y.); (K.-T.P.)
| | - Ki-Ae Kim
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Korea; (N.-R.C.); (K.-A.K.)
| | - Yong-Pyo Kim
- Graduate Program in System Health Science and Engineering, Department of Chemical Engineering and Materials Science, Ewha Womans University, Seoul 03760, Korea;
| | - Yun-Gyong Ahn
- Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Korea
| | - Ji-Yi Lee
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Korea; (N.-R.C.); (K.-A.K.)
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Meschaninova MI, Entelis NS, Chernolovskaya EL, Venyaminova AG. A Versatile Solid-Phase Approach to the Synthesis of Oligonucleotide Conjugates with Biodegradable Hydrazone Linker. Molecules 2021; 26:molecules26082119. [PMID: 33917095 PMCID: PMC8067880 DOI: 10.3390/molecules26082119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/03/2021] [Accepted: 04/04/2021] [Indexed: 12/02/2022] Open
Abstract
One of the ways to efficiently deliver various drugs, including therapeutic nucleic acids, into the cells is conjugating them with different transport ligands via labile or stable bonds. A convenient solid-phase approach for the synthesis of 5′-conjugates of oligonucleotides with biodegradable pH-sensitive hydrazone covalent bonds is proposed in this article. The approach relies on introducing a hydrazide of the ligand under aqueous/organic media to a fully protected support-bound oligonucleotide containing aldehyde function at the 5′-end. We demonstrated the proof-of-principle of this approach by synthesizing 5′-lipophilic (e.g., cholesterol and α-tocopherol) conjugates of modified siRNA and non-coding RNAs imported into mitochondria (antireplicative RNAs and guide RNAs for Mito-CRISPR/system). The developed method has the potential to be extended for the synthesis of pH-sensitive conjugates of oligonucleotides of different types (ribo-, deoxyribo-, 2′-O-methylribo-, and others) with ligands of different nature.
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Affiliation(s)
- Mariya I. Meschaninova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.L.C.); (A.G.V.)
- Correspondence: ; Tel.: +7-383-363-5129
| | - Nina S. Entelis
- UMR Genetique Moleculaire, Genomique, Microbiologie (GMGM), Strasbourg University—CNRS, 67084 Strasbourg, France;
| | - Elena L. Chernolovskaya
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.L.C.); (A.G.V.)
| | - Alya G. Venyaminova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.L.C.); (A.G.V.)
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16
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Musarurwa H, Tavengwa NT. Emerging green solvents and their applications during pesticide analysis in food and environmental samples. Talanta 2021; 223:121507. [DOI: 10.1016/j.talanta.2020.121507] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 12/24/2022]
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17
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Lv S, Wang H, Yan Y, Ge M, Guan J. Quantification and confirmation of four aflatoxins using a LC-MS/MS QTRAP system in multiple reaction monitoring, enhanced product ion scan, and MS 3 modes. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2020; 26:63-77. [PMID: 31357879 DOI: 10.1177/1469066719866050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A simple, rapid, and efficient liquid chromatography tandem mass spectrometry (LC-MS/MS) method, operated in electrospray ionization and quadrupole linear ion trap modes, has been developed for the identification and structural characterization of aflatoxins in peanuts and its derivative products or bean sauce. Samples (5 g) were extracted with acetonitrile/water/formic acid (79:20:1, v/v). After centrifugation and dilution, the extracts were separated on a C18 analytical column by gradient elution (acetonitrile/0.2% formic acid) and analyzed by UPLC-MS/MS. External calibration was used for qualification. The developed multiple reaction monitoring-information-dependent acquisition-enhanced product ion method enabled quantification and confirmation of the analytes in a single run. Enhanced product ion mode was used for qualitative analysis, while multiple reaction monitoring mode was used for quantitative analysis. An in-house library was constructed for identification. Calibration curves showed good linearity with correlation coefficients (r) higher than 0.994. Limits of detection were determined to be below 0.26 µg kg-1 for most analytes. The recoveries for those substances were in the acceptable range of 80.2%-119.1%. A new LC-MS3 method was established for further confirmation. One pickled pepper peanut was found to contain aflatoxins B1, B2, and G1 with contents of 90.93, 26.64, and 1.92 µg kg-1, respectively.
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Affiliation(s)
- Shencong Lv
- Jiaxing Center for Disease Control and Prevention, Zhejiang, China
| | - Henghui Wang
- Jiaxing Center for Disease Control and Prevention, Zhejiang, China
| | - Yong Yan
- Jiaxing Center for Disease Control and Prevention, Zhejiang, China
| | - Miaohua Ge
- Jiaxing Center for Disease Control and Prevention, Zhejiang, China
| | - Jian Guan
- Jiaxing Center for Disease Control and Prevention, Zhejiang, China
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18
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Lan J, Sun W, Chen L, Zhou H, Fan Y, Diao X, Wang B, Zhao H. Simultaneous and rapid detection of carbofuran and 3-hydroxy-carbofuran in water samples and pesticide preparations using lateral-flow immunochromatographic assay. FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2019.1708272] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Jianqiang Lan
- Key Laboratory of A&F Environmental Processes and Ecological Regulation of Hainan Province, College of Ecology and Environment, Hainan University, Haikou, People’s Republic of China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
| | - Weiming Sun
- Key Laboratory of A&F Environmental Processes and Ecological Regulation of Hainan Province, College of Ecology and Environment, Hainan University, Haikou, People’s Republic of China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
| | - Lijun Chen
- Hainan Plant Protection Station, Haikou, People’s Republic of China
| | - Hailong Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
| | - Yongmei Fan
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
| | - Xiaoping Diao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
| | - Baomin Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, People’s Republic of China
| | - Hongwei Zhao
- Key Laboratory of A&F Environmental Processes and Ecological Regulation of Hainan Province, College of Ecology and Environment, Hainan University, Haikou, People’s Republic of China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
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19
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Lan J, Wang M, Ding S, Fan Y, Diao X, Li QX, Zhao H. Simultaneous detection of carbofuran and 3-hydroxy-carbofuran in vegetables and fruits by broad-specific monoclonal antibody-based ELISA. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1664997] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Jianqiang Lan
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Mifang Wang
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Shang Ding
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Yongmei Fan
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Xiaoping Diao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, USA
| | - Hongwei Zhao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
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20
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Perestrelo R, Silva P, Porto-Figueira P, Pereira JAM, Silva C, Medina S, Câmara JS. QuEChERS - Fundamentals, relevant improvements, applications and future trends. Anal Chim Acta 2019; 1070:1-28. [PMID: 31103162 DOI: 10.1016/j.aca.2019.02.036] [Citation(s) in RCA: 224] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 02/16/2019] [Accepted: 02/24/2019] [Indexed: 12/15/2022]
Abstract
The Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) method is a simple and straightforward extraction technique involving an initial partitioning followed by an extract clean-up using dispersive solid-phase extraction (d-SPE). Originally, the QuEChERS approach was developed for recovering pesticide residues from fruits and vegetables, but rapidly gained popularity in the comprehensive isolation of analytes from different matrices. According to PubMed, since its development in 2003 up to November 2018, about 1360 papers have been published reporting QuEChERS as extraction method. Several papers have reported different improvements and modifications to the original QuEChERS protocol to ensure more efficient extractions of pH-dependent analytes and to minimize the degradation of labile analytes. This analytical approach shows several advantages over traditional extraction techniques, requiring low sample and solvent volumes, as well as less time for sample preparation. Furthermore, most of the published studies show that the QuEChERS protocol provides higher recovery rate and a better analytical performance than conventional extraction procedures. This review proposes an updated overview of the most recent developments and applications of QuEChERS beyond its original application to pesticides, mycotoxins, veterinary drugs and pharmaceuticals, forensic analysis, drugs of abuse and environmental contaminants. Their pros and cons will be discussed, considering the factors influencing the extraction efficiency. Whenever possible, the performance of the QuEChERS is compared to other extraction approaches. In addition to the evolution of this technique, changes and improvements to the original method are discussed.
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Affiliation(s)
- Rosa Perestrelo
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal.
| | - Pedro Silva
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal
| | - Priscilla Porto-Figueira
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal
| | - Jorge A M Pereira
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal
| | - Catarina Silva
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal
| | - Sonia Medina
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal
| | - José S Câmara
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal; Departamento de Química, Faculdade de Ciências Exatas e Engenharia, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal
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