1
|
Xiong Y, Guo G, Xian H, Hu Z, Ouyang D, He J, He S, Liu R, Gao Z, Tang M, Chen Y, Tan S, Zhu X, Abulimiti A, Zheng S, Huang H, Hu D. MCF-7 cell - derived exosomes were involved in protecting source cells from the damage caused by tributyltin chloride via transport function. Toxicology 2024; 505:153844. [PMID: 38801937 DOI: 10.1016/j.tox.2024.153844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Tributyltin chloride (TBTC) is a ubiquitous environmental pollutant with various adverse effects on human health. Exosomes are cell - derived signaling and substance transport vesicles. This investigation aimed to explore whether exosomes could impact the toxic effects caused by TBTC via their transport function. Cytotoxicity, DNA and chromosome damage caused by TBTC on MCF-7 cells were analyzed with CCK-8, flow cytometry, comet assay and micronucleus tests, respectively. Exosomal characterization and quantitative analysis were performed with ultracentrifugation, transmission electron microscope (TEM) and bicinchoninic acid (BCA) methods. TBTC content in exosomes was detected with Liquid Chromatography-Mass Spectrometry (LC-MS). The impacts of exosomal secretion on the toxic effects of TBTC were analyzed. Our data indicated that TBTC caused significant cytotoxicity, DNA and chromosome damage effects on MCF-7 cells, and a significantly increased exosomal secretion. Importantly, TBTC could be transported out of MCF-7 cells by exosomes. Further, when exosomal secretion was blocked with GW4869, the toxic effects of TBTC were significantly exacerbated. We concluded that TBTC promoted exosomal secretion, which in turn transported TBTC out of the source cells to alleviate its toxic effects. This investigation provided a novel insight into the role and mechanism of exosomal release under TBTC stress.
Collapse
Affiliation(s)
- Yiren Xiong
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Guoqiang Guo
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China; Public Health Service Centre of Baoan District, Shenzhen City 518000, China
| | - Hongyi Xian
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Zuqing Hu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Di Ouyang
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Jiayi He
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Shanshan He
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Renyi Liu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Zhenjie Gao
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Meilin Tang
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Ying Chen
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China
| | - Suqin Tan
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China; Grade 2020 Undergraduate Student Majoring in Preventive Medicine, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Xiaoqi Zhu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China; Grade 2020 Undergraduate Student Majoring in Preventive Medicine, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Abudumijiti Abulimiti
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China; Grade 2020 Undergraduate Student Majoring in Preventive Medicine, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Sujin Zheng
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China; Grade 2020 Undergraduate Student Majoring in Preventive Medicine, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Hehai Huang
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China; Public Health Service Centre of Baoan District, Shenzhen City 518000, China
| | - Dalin Hu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, China.
| |
Collapse
|
2
|
Wang P, Ji Z, Chen H, Chen S, Pan C, Fei Q, Ge RS, Duan P, Li L. Structure-activity relationship and mechanistic study of organotins as inhibitors of human, pig, and rat gonadal 3β-hydroxysteroid dehydrogenases. Toxicol Appl Pharmacol 2024; 486:116942. [PMID: 38692360 DOI: 10.1016/j.taap.2024.116942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 04/14/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
Organotins have been widely used in various industrial applications. This study investigated the structure-activity relationship as inhibitors of human, pig, and rat gonadal 3β-hydroxysteroid dehydrogenases (3β-HSD). Human KGN cell, pig, and rat testis microsomes were utilized to assess the inhibitory effects of 18 organotins on the conversion of pregnenolone to progesterone. Among them, diphenyltin, triethyltin, and triphenyltin exhibited significant inhibitory activity against human 3β-HSD2 with IC50 values of 114.79, 106.98, and 5.40 μM, respectively. For pig 3β-HSD, dipropyltin, diphenyltin, triethyltin, tributyltin, and triphenyltin demonstrated inhibitory effects with IC50 values of 172.00, 100.19, 87.00, 5.75, and 1.65 μM, respectively. Similarly, for rat 3β-HSD1, dipropyltin, diphenyltin, triethyltin, tributyltin, and triphenyltin displayed inhibitory activity with IC50 values of 81.35, 43.56, 55.55, 4.09, and 0.035 μM, respectively. They were mixed inhibitors of pig and rat 3β-HSD, while triphenyltin was identified as a competitive inhibitor of human 3β-HSD2. The mechanism underlying the inhibition of organotins on 3β-HSD was explored, revealing that they may disrupt the enzyme activity by binding to cysteine residues in the catalytic sites. This proposition was supported by the observation that the addition of dithiothreitol reversed the inhibition caused by all organotins except for triethyltin, which was partially reversed. In conclusion, this study provides valuable insights into the structure-activity relationship of organotins as inhibitors of human, pig, and rat gonadal 3β-HSD. The mechanistic investigation suggests that these compounds likely exert their inhibitory effects through binding to cysteine residues in the catalytic sites.
Collapse
Affiliation(s)
- Peiyu Wang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Reproductive Medicine Centre, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, 325000, Zhejiang Province, China
| | - Zhongyao Ji
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Huiqian Chen
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Sailing Chen
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Chengshuang Pan
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Reproductive Medicine Centre, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qianjin Fei
- Reproductive Medicine Centre, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ren-Shan Ge
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, 325000, Zhejiang Province, China.
| | - Ping Duan
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| | - Linxi Li
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, 325000, Zhejiang Province, China.
| |
Collapse
|
3
|
Chen C, Chen L, Huang Q, Yu G, Lu Z, Gabrielsen GW. Determination of organotin compounds in marine sediments from Arctic Svalbard and West Antarctic Fildes Peninsula. MARINE POLLUTION BULLETIN 2024; 198:115845. [PMID: 38039570 DOI: 10.1016/j.marpolbul.2023.115845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/03/2023]
Abstract
This study investigated the contamination levels of five typical organotin compounds in Arctic and Antarctic marine sediments. Organotin total concentrations ranged from not detected (ND) to 37.9 ng Sn/g dw and from ND to 34.0 ng Sn/g dw in surface sediments of Svalbard and Fildes Peninsula, respectively. Dibutyltin accounted for 11.3 %-100 % of butyltins in Arctic sediments, whilst diphenyltin was the predominant phenyltin species in both Arctic and Antarctic. However, the concentrations of tributyltin and triphenyltin were lower than low-substituted organotins in the study areas, indicating the effectiveness of international ban on the use of triorganotin-based antifouling paints. No significant difference in organotin contamination was found between Arctic and Antarctic, although the time suffered from human interference was shorter in the Antarctic. Overall, these data can provide a diagnosis of recent organotin inputs in polar regions and serve as a baseline for future study assessing their local applications.
Collapse
Affiliation(s)
- Chunzhao Chen
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhuhai 519087, China; Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Ling Chen
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Qinghui Huang
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China.
| | - Gang Yu
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhuhai 519087, China
| | - Zhibo Lu
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | | |
Collapse
|
4
|
Li Y, Huang X, Ge N, Zhang J, Cao Y, Cui Z. Occurrence of organotin compounds in food: increasing challenge of phenyltin compounds. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2023; 59:9-14. [PMID: 37961984 DOI: 10.1080/03601234.2023.2278385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Concentrations and distribution for 16 organotin compounds were studied in all kinds of foods, including seafood, agricultural products, and wine. Meanwhile, the degradation of the TBT or TPhT was also evaluated. Concentrations of total organotins in seafood, agricultural products, and wine were 1047.2, 469.4, and 13.5 μg Sn/kg. Meanwhile, the most frequently detected organotin in three kinds of samples were TPhT, MPhT, and MPhT, respectively. The results demonstrated that phenyltin may probably become an emerging organotin pollutant. Regarding seafood, organotin concentrations of fish and mollusks were much higher than those of crustaceans. At the same time, a significant positive correlation was observed between the concentrations of TBT and MBT (p < 0.05), and between DBT and MBT(p < 0.0001). Moreover, TPhT was significantly and positively associated with DPhT (p < 0.0001), suggesting that TPhT was the precursor of DPhT. Apart from the likely illegal use of OTs as biocides in antifouling paints for ships, anthropogenic activity like agricultural activity or industrial activity also caused organotin contamination. Further research and more effective measures should be formulated to protect the food safety. Meanwhile, monitoring of the organotin contamination should not only in Qinhuangdao, but also expand to the cities along Bohai Bay.
Collapse
Affiliation(s)
- Yan Li
- Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, P.R. China
| | - Xuezhe Huang
- Technology Center of Qinhuangdao Customs, Qinhuangdao, P.R. China
| | - Na Ge
- Technology Center of Qinhuangdao Customs, Qinhuangdao, P.R. China
| | - Jinjie Zhang
- Technology Center of Qinhuangdao Customs, Qinhuangdao, P.R. China
| | - Yanzhong Cao
- Technology Center of Qinhuangdao Customs, Qinhuangdao, P.R. China
| | - Zongyan Cui
- Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, P.R. China
- Technology Center of Qinhuangdao Customs, Qinhuangdao, P.R. China
| |
Collapse
|
5
|
Luo HW, Jiang JM, Wang X, Li M, Ding JJ, Hong WJ, Guo LH. Contaminant occurrence, water quality criteria and tiered ecological risk assessment in water: A case study of antifouling biocides in the Qiantang River and its estuary, Eastern China. MARINE POLLUTION BULLETIN 2023; 194:115311. [PMID: 37480803 DOI: 10.1016/j.marpolbul.2023.115311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/12/2023] [Accepted: 07/16/2023] [Indexed: 07/24/2023]
Abstract
Antifouling biocides may cause adverse effects on non-target species. This study aims to determine the distribution, sources, and ecological risks of antifouling biocides in the surface waters of the Qiantang River and its estuary in eastern China. The concentrations of total antifouling biocides were ranged from 12.9 to 215 ng/L for all water samples. Atrazine, diuron and tributyltin were the major compounds in the water bodies of the study area. The acute and chronic toxicity criteria for tributyltin, diuron and atrazine were derived for freshwater and saltwater, respectively, based on the species sensitivity distribution approach. The freshwater and saltwater criteria were slightly different, and the toxicity to aquatic organisms could be summarized as tributyltin > diuron > atrazine. The graded ecological risk rating showed that the long-term risk of TBT was significant in coastal waters. The pollution of TBT in the Qiantang River deserves further attention.
Collapse
Affiliation(s)
- Hai-Wei Luo
- College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Jian-Ming Jiang
- College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Xun Wang
- College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Minjie Li
- College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Jin-Jian Ding
- College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China; Institute of Environmental and Health Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Wen-Jun Hong
- College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China; Institute of Environmental and Health Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China.
| | - Liang-Hong Guo
- College of Quality and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China; Institute of Environmental and Health Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China.
| |
Collapse
|
6
|
Bonsu DNO, Higgins D, Simon C, Goodwin CS, Henry JM, Austin JJ. Quantitative PCR overestimation of DNA in samples contaminated with tin. J Forensic Sci 2023. [PMID: 37326229 DOI: 10.1111/1556-4029.15312] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/25/2023] [Accepted: 06/01/2023] [Indexed: 06/17/2023]
Abstract
Metals can pose challenges while conducting forensic DNA analysis. The presence of metal ions in evidence-related DNA extracts can degrade DNA or inhibit PCR as applied to DNA quantification (real-time PCR or qPCR) and/or STR amplification, leading to low success in STR profiling. Different metal ions were spiked into 0.2 and 0.5 ng of human genomic DNA in an "inhibition study" and the impact was evaluated by qPCR using the Quantifiler™ Trio DNA Quantification Kit (Thermo Fisher Scientific) and an in-house SYBR Green assay. This study reports on a contradictory finding specific to tin (Sn) ions, which caused at least a 38,000-fold overestimation of DNA concentration when utilizing Quantifiler Trio. This was explained by the raw and multicomponent spectral plots, which indicated that Sn suppresses the Quantifiler Trio passive reference dye (Mustang Purple™, MP) at ion concentrations above 0.1 mM. This effect was not observed when DNA was quantified using SYBR Green with ROX™ as the passive reference, nor when DNA was extracted and purified prior to Quantifiler Trio. The results show that metal contaminants can interfere with qPCR-based DNA quantification in unexpected ways and may be assay dependent. The results also highlight the importance of qPCR as a quality check to determine steps for sample cleanup prior to STR amplification that may be similarly impacted by metal ions. Forensic workflows should recognize the risk of inaccurate DNA quantification of samples that are collected from substrates containing tin.
Collapse
Affiliation(s)
- Dan Nana Osei Bonsu
- Chemistry and Forensic Sciences, Griffith University, Nathan, Brisbane, Queensland, Australia
- Forensic Research Group, Australian Centre for Ancient DNA (ACAD), School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Denice Higgins
- Forensic Research Group, Australian Centre for Ancient DNA (ACAD), School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
- School of Dentistry, Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Claire Simon
- Forensic Science SA, Attorney-General's Department, Adelaide, South Australia, Australia
| | | | - Julianne M Henry
- Forensic Science SA, Attorney-General's Department, Adelaide, South Australia, Australia
| | - Jeremy J Austin
- Forensic Research Group, Australian Centre for Ancient DNA (ACAD), School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| |
Collapse
|
7
|
Payne MR, Turner A. Remote sensing of boat abandonment using Google Earth. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:15616-15622. [PMID: 36171317 DOI: 10.1007/s11356-022-23102-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Abandoned boats represent a pervasive and growing problem in the coastal zone that has received little regulatory or scientific attention. In this study, we show how Google Earth can be employed to remotely identify abandoned boats and provide information on their size, age and condition. Based on specified criteria for abandonment, a survey of southern England (1700 km in length) revealed the presence of 266 boats that were mainly located in the intertidal zones of estuaries and inlets and that were often contained within clusters. Boat length ranged from 2.6 to 60 m (median = 10.5 m), and since 2004 abandonment has been increasing at a rate of about eight per year. The majority of boats appeared to be of timber construction and exhibited evidence of damage and water-sediment ingression. The environmental impacts are likely to be most significant where boats are clustered on protected mudflats.
Collapse
Affiliation(s)
- Millicent R Payne
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK
| | - Andrew Turner
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK.
| |
Collapse
|
8
|
Mikac N, Furdek Turk M, Petrović D, Bigović M, Krivokapić S. First assessment of butyltins (BuTs) contamination of the Montenegrin coast (Southeast Adriatic): Tributyltin (TBT) poses a threat to the marine ecosystem. MARINE POLLUTION BULLETIN 2022; 185:114270. [PMID: 36347191 DOI: 10.1016/j.marpolbul.2022.114270] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/13/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
This study presents the first assessment of butyltins (BuTs) pollution of the Montenegrin coast. The distribution of tributyltin (TBT), dibutyltin (DBT) and monobutyltin (MBT) was investigated in mussels, sediments and water overlying sediment after the sediment resuspension. The results showed that the investigated sites (marinas, ports, shipyards) are contaminated with BuTs (19-402 ng (Sn)/g in mussels; 43-20,641 ng (Sn)/g in sediments; 9-566 ng (Sn)/L in overlying waters). The measured TBT concentrations indicate that toxic effects on marine organisms are expected at most locations. The simultaneous analysis of BuTs and total Sn in sediment cores allowed the assessment of TBT historical input, while it was demonstrated that resuspension of contaminated sediments leads to the release of all BuTs into the water column. This study shows that, despite the ban of TBT-based antifouling paints more than a decade ago, pollution of the marine environment with TBT is still a problem and regular monitoring remains essential.
Collapse
Affiliation(s)
- Nevenka Mikac
- Division for Marine and Environmental Research, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Martina Furdek Turk
- Division for Marine and Environmental Research, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
| | - Dragana Petrović
- Faculty of Natural Sciences and Mathematics, University of Montenegro, 81000 Podgorica, Montenegro
| | - Miljan Bigović
- Faculty of Natural Sciences and Mathematics, University of Montenegro, 81000 Podgorica, Montenegro
| | - Sladjana Krivokapić
- Faculty of Natural Sciences and Mathematics, University of Montenegro, 81000 Podgorica, Montenegro
| |
Collapse
|
9
|
Simões LAR, Vogt ÉL, da Costa CS, de Amaral M, Hoff MLM, Graceli JB, Vinagre AS. Effects of tributyltin (TBT) on the intermediate metabolism of the crab Callinectes sapidus. MARINE POLLUTION BULLETIN 2022; 182:114004. [PMID: 35939934 DOI: 10.1016/j.marpolbul.2022.114004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 05/05/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
This study investigated if the exposure to tributyltin (TBT), a chemical used worldwide in boat antifouling paints, could result in metabolic disturbances in the blue crab Callinectes sapidus. After the exposure to TBT 100 or 1000 ng.L-1 for 48 and 96 h, hemolymph and tissues were collected to determine the concentration of metabolites and lipid peroxidation. The levels of glucose, lactate, cholesterol, and triglycerides in the hemolymph were not affected by TBT exposure. Hemolymph protein and heart glycogen increased in the crabs exposed to TBT 1000 for 96 h. Anterior gills protein and lipoperoxidation decreased after 96 h in all groups. These results suggest that C. sapidus can maintain energy homeostasis when challenged by the TBT exposure for 48 h and that metabolic alterations initiate after 96 h.
Collapse
Affiliation(s)
- Leonardo Airton Ressel Simões
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Éverton Lopes Vogt
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | | | - Marjoriane de Amaral
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Mariana Leivas Müller Hoff
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | | | - Anapaula Sommer Vinagre
- Comparative Metabolism and Endocrinology Laboratory (LAMEC), Department of Physiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| |
Collapse
|
10
|
Norén A, Lointier C, Modin O, Strömvall AM, Rauch S, Andersson-Sköld Y, Karlfeldt Fedje K. Removal of organotin compounds and metals from Swedish marine sediment using Fenton's reagent and electrochemical treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:27988-28004. [PMID: 34985631 PMCID: PMC8993779 DOI: 10.1007/s11356-021-17554-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Metal and tributyltin (TBT) contaminated sediments are problematic for sediment managers and the environment. This study is the first to compare Fenton's reagent and electrochemical treatment as remediation methods for the removal of TBT and metals using laboratory-scale experiments on contaminated dredged sediment. The costs and the applicability of the developed methods were also compared and discussed. Both methods removed > 98% TBT from TBT-spiked sediment samples, while Fenton's reagent removed 64% of the TBT and electrolysis 58% of the TBT from non-spiked samples. TBT in water phase was effectively degraded in both experiments on spiked water and in leachates during the treatment of the sediment. Positive correlations were observed between TBT removal and the added amount of hydrogen peroxide and current density. Both methods removed metals from the sediment, but Fenton's reagent was identified as the most potent option for effective removal of both metals and TBT, especially from highly metal-contaminated sediment. However, due to risks associated with the required chemicals and low pH level in the sediment residue following the Fenton treatment, electrochemical treatment could be a more sustainable option for treating larger quantities of contaminated sediment.
Collapse
Affiliation(s)
- Anna Norén
- Department of Architecture and Civil Engineering, Division of Water Environment Technology, Chalmers University of Technology, 412 96, Gothenburg, Sweden.
| | - Célia Lointier
- Department of Architecture and Civil Engineering, Division of Water Environment Technology, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - Oskar Modin
- Department of Architecture and Civil Engineering, Division of Water Environment Technology, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - Ann-Margret Strömvall
- Department of Architecture and Civil Engineering, Division of Water Environment Technology, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - Sebastien Rauch
- Department of Architecture and Civil Engineering, Division of Water Environment Technology, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - Yvonne Andersson-Sköld
- Swedish National Road and Transport Research Institute (VTI), Box 8072, 402 78, Gothenburg, Sweden
- Department of Architecture and Civil Engineering, Division of Geology and Geotechnics, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - Karin Karlfeldt Fedje
- Department of Architecture and Civil Engineering, Division of Water Environment Technology, Chalmers University of Technology, 412 96, Gothenburg, Sweden
- Recycling and Waste Management, Renova AB, Box 156, 401 22, Gothenburg, Sweden
| |
Collapse
|
11
|
Jiang S, Chang L, Luo J, Zhang J, Liu X, Lee CY, Zhang W. Fabrication of a honeycomb-like bimetallic SERS substrate for the detection of triphenyltin chloride. Analyst 2021; 146:6170-6177. [PMID: 34522939 DOI: 10.1039/d1an01359a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Triphenyltin chloride (TPhT) is an organotin compound that causes intensive toxicological risk to the environment and humans. A detection method with high sensitivity and stability is therefore desired to better detect TPhT. In this study, a novel SERS substrate was prepared by sputtering an ultra-thin Au layer on a honeycomb-like silver nanoarray fabricated via the nanosphere lithography method. The ultra-thin Au layer was formed by sputtering the intermittent Au nanoparticles on the silver nanoarray, resulting in bimetallic coupling with dramatically increased hotspots and extremely high SERS enhancement with an analytical enhancement factor (AEF) of 6.08 × 109 using Rhodamine 6G (R6G) as the probe molecule. Based on density functional theory (DFT) simulations, the Raman characteristic peaks of TPhT at 999 cm-1 and 655 cm-1 were selected for TPhT detection. The AEF of the SERS substrate HC5-AgAu was calculated to be 3.38 × 106 with the detection concentration of TPhT down to 10-10 M. The as-prepared honeycomb-like silver-gold bimetallic SERS substrate demonstrated great stability and sensitivity for TPhT detection, which might also be applied in monitoring many other environmental pollutants.
Collapse
Affiliation(s)
- Shan Jiang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Lin Chang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jie Luo
- College of Advanced Interdisciplinary Studies & Hunan Provincial Key Laboratory of Novel Nano-Optoelectronic Information Materials and Devices, National University of Defense Technology, Changsha 410073, P. R. China
| | - Jianfa Zhang
- College of Advanced Interdisciplinary Studies & Hunan Provincial Key Laboratory of Novel Nano-Optoelectronic Information Materials and Devices, National University of Defense Technology, Changsha 410073, P. R. China
| | - Xiaohong Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China.
| | - Chong-Yew Lee
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Wei Zhang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| |
Collapse
|
12
|
Zhang H, Zhang Z, Qi Y, Yang Q. The Interfacial Structure and Adhesion Mechanism of N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane and Epoxy Modified Silicone Tie-Coating to Epoxy Primer. Polymers (Basel) 2021; 13:3001. [PMID: 34503041 PMCID: PMC8434322 DOI: 10.3390/polym13173001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 01/10/2023] Open
Abstract
The matching application of silicone antifouling coating and epoxy primer is a major problem in engineering. Novel epoxy-modified silicone tie-coating was prepared to tie epoxy primer and silicone antifouling coating. Firstly, N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane was mechanically mixed with bisphenol A epoxy resin to form silylated epoxy resin, then the silylated epoxy resin was uniformly mixed with hydroxy-terminated polydimethylsiloxane and a curing agent and catalyst for coating. An infrared spectrometer, differential scanning calorimeter and tensile tests were used to investigate the chemical structure, phase transition temperature and mechanical properties of the tie-coatings. The interlaminar adhesion of the matching coating system was tested and analyzed by a peel-off test and a shear test. Fracture morphology was observed by scanning using an electron microscope. The results showed that crosslinking density of the tie-coating, the elastic modulus and the tensile strength of the coating increased with an increasing epoxy content, but fracture elongation decreased. The shear strength of the matching coating system is 0.37 MPa, and it shows a good tie performance. The maximum anti-peeling rate of the tie-coating on the epoxy primer reaches 100%.
Collapse
Affiliation(s)
| | - Zhanping Zhang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China; (H.Z.); (Y.Q.); (Q.Y.)
| | | | | |
Collapse
|
13
|
Kuprijanov I, Väli G, Sharov A, Berezina N, Liblik T, Lips U, Kolesova N, Maanio J, Junttila V, Lips I. Hazardous substances in the sediments and their pathways from potential sources in the eastern Gulf of Finland. MARINE POLLUTION BULLETIN 2021; 170:112642. [PMID: 34175699 DOI: 10.1016/j.marpolbul.2021.112642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Contamination by hazardous substances is one of the main environmental problems in the eastern Gulf of Finland, Baltic Sea. A trilateral effort to sample and analyse heavy metals (HMs), polycyclic aromatic hydrocarbons (PAHs), and organotins from bottom sediments in 2019-2020 were conducted along with harvesting historical data in Russian, Estonian and Finnish waters. We suggest that the input of organotins still occurs along the ship traffic routes. The tributyltin content exceeded the established quality criteria up to more than 300 times. High contamination by PAHs found near the ports, most likely originate from incomplete fuel incineration processes. The Neva River Estuary and Luga Bay might potentially suffer from severe cadmium contamination. The high ecological risk attributed to the HMs was detected at deep offshore areas. The simulated accumulation pattern qualitatively agrees with field observations of HMs in sediments, demonstrating the potential of numerical tools to tackle the hazardous substances problems.
Collapse
Affiliation(s)
- Ivan Kuprijanov
- Department of Marine Systems, Tallinn University of Technology (TalTech), Tallinn, Estonia.
| | - Germo Väli
- Department of Marine Systems, Tallinn University of Technology (TalTech), Tallinn, Estonia
| | - Andrey Sharov
- Scientific Research Centre for Ecological Safety of the Russian Academy of Sciences (SRCES RAS), Saint Petersburg, Russia
| | - Nadezhda Berezina
- Zoological Institute of the Russian Academy of Sciences (ZIN RAS), Saint-Petersburg, Russia
| | - Taavi Liblik
- Department of Marine Systems, Tallinn University of Technology (TalTech), Tallinn, Estonia
| | - Urmas Lips
- Department of Marine Systems, Tallinn University of Technology (TalTech), Tallinn, Estonia
| | - Natalja Kolesova
- Department of Marine Systems, Tallinn University of Technology (TalTech), Tallinn, Estonia
| | - Jaakko Maanio
- Finnish Environment Institute (SYKE), Helsinki, Finland
| | | | - Inga Lips
- Department of Marine Systems, Tallinn University of Technology (TalTech), Tallinn, Estonia
| |
Collapse
|
14
|
Quintas PY, Arias AH, Alvarez MB, Domini CE, Garrido M, Marcovecchio JE. Distribution of Butyltin Compounds in the Coastal Environment of the Bahía Blanca Estuary, Argentina. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 81:307-323. [PMID: 34268597 DOI: 10.1007/s00244-021-00871-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
This study evaluates for the first time the distribution and accumulation of butyltin compounds (BTs) in different compartments such as seawater, sediments, suspended particulate matter (SPM), and mussels (Brachidontes rodriguezii) in the Bahía Blanca estuary. The samples were collected from six sampling sites with different anthropogenic impacts. A better visualization and interpretation of data was achieved using chemometric tools (Tucker4 model), which made it possible to reveal the main relationships among the variables. This analysis showed the presence of BTs in all the estuarine environmental compartments, even in sites with low human intervention. The relationships found among BTs levels, seasons, and environmental matrices show the importance of biological processes such as phytoplankton blooms and remobilization of sediments (by tidal dynamics and/or periodic dredging) in BTs distribution and degradation. In addition, partition coefficients showed that mussels mainly bioaccumulate tributyltin from sediment, water and, to a lesser extent, SPM.
Collapse
Affiliation(s)
- Pamela Y Quintas
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentina.
- Laboratorio de Química Analítica para Investigación y Desarrollo (QUIANID), Instituto Interdisciplinario de Ciencias Básicas, Universidad Nacional de Cuyo, Mendoza, Argentina.
| | - Andrés H Arias
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentina
- Departamento de Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
| | - Mónica B Alvarez
- Departamento de Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - Claudia E Domini
- Departamento de Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - Mariano Garrido
- Departamento de Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina.
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina.
| | - Jorge E Marcovecchio
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentina
| |
Collapse
|
15
|
Abreu FEL, Batista RM, Castro ÍB, Fillmann G. Legacy and emerging antifouling biocide residues in a tropical estuarine system (Espirito Santo state, SE, Brazil). MARINE POLLUTION BULLETIN 2021; 166:112255. [PMID: 33744804 DOI: 10.1016/j.marpolbul.2021.112255] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
The contamination by antifouling biocide residues (booster biocides - diuron, Irgarol, chlorothalonil, dichlofluanid and DCOIT; butyltin compounds-BTs (TBT, DBT and MBT); and antifouling paint particles-APPs) was appraised in sediments of Vitoria Estuarine System (VES). Even at its historical lower (ΣBTs ≤113 ng Sn g-1 dry wt), the current environmental levels of BTs in areas with a predominance of boatyards still pose a risk to the local biota and human population. DCOIT, among booster biocides, was the most frequently detected, especially in boatyards (≤40 ng g-1 dry wt) and Vitoria Port (64 ng g-1 dry wt), while APPs were also detected mainly in sediments of boatyards (≤5,969 μg g-1 dry wt). Since levels of diuron and DCOIT in APPs were as high as 1,670,000 and 899,000 ng g-1 dry wt, respectively, they are acting as secondary sources of these antifouling biocides. Therefore, VES is threatened by antifouling biocide residues due to the multiple diffuse sources of contamination, showing the need for more efforts on public policies (including temporal trend monitoring studies).
Collapse
Affiliation(s)
- Fiamma Eugenia Lemos Abreu
- Instituto de Oceanografia, Universidade Federal do Rio Grande (IO -FURG), Av. Itália s/n, Campus Carreiros, C.P. 474, 96203-900 Rio Grande, RS, Brazil; PPG em Oceanologia, Universidade Federal do Rio Grande (PPGO-FURG), Av. Itália s/n, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil
| | - Rodrigo Moço Batista
- Instituto de Oceanografia, Universidade Federal do Rio Grande (IO -FURG), Av. Itália s/n, Campus Carreiros, C.P. 474, 96203-900 Rio Grande, RS, Brazil; PPG em Química Tecnológica e Ambiental, Universidade Federal do Rio Grande (PPGQTA-FURG), Av. Itália s/n, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil
| | - Ítalo Braga Castro
- PPG em Oceanologia, Universidade Federal do Rio Grande (PPGO-FURG), Av. Itália s/n, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil; Instituto do Mar, Universidade Federal de São Paulo (IMAR-UNIFESP), Av. Almirante Saldanha da Gama, 11030-400 Santos, SP, Brazil
| | - Gilberto Fillmann
- Instituto de Oceanografia, Universidade Federal do Rio Grande (IO -FURG), Av. Itália s/n, Campus Carreiros, C.P. 474, 96203-900 Rio Grande, RS, Brazil; PPG em Oceanologia, Universidade Federal do Rio Grande (PPGO-FURG), Av. Itália s/n, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil; PPG em Química Tecnológica e Ambiental, Universidade Federal do Rio Grande (PPGQTA-FURG), Av. Itália s/n, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil.
| |
Collapse
|
16
|
Norén A, Karlfeldt Fedje K, Strömvall AM, Rauch S, Andersson-Sköld Y. Low impact leaching agents as remediation media for organotin and metal contaminated sediments. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 282:111906. [PMID: 33472101 DOI: 10.1016/j.jenvman.2020.111906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
All over the world, elevated levels of metals and the toxic compound tributyltin (TBT) and its degradation products are found in sediments, especially close to areas associated with shipping and anthropogenic activities. Ports require regular removal of sediments. As a result, large volumes of often contaminated sediments must be managed. The aim of this study was to investigate enhanced leaching as a treatment method for organotin (TBT) and metal (Cu and Zn) contaminated marine sediments. Thus, enabling the possibility to reuse these cleaner masses e.g. in construction. In addition to using acid and alkaline leaching agents that extract the OTs and metals but reduce the management options post treatment, innovative alternatives such as EDDS, hydroxypropyl cellulose, humic acid, iron colloids, ultra-pure Milli-Q water, saponified tall oil ("soap"), and NaCl were tested. Organotin removal ranged from 36 to 75%, where the most efficient leaching agent was Milli-Q water, which was also the leaching agent achieving the highest removal rate for TBT (46%), followed by soap (34%). The TBT reduction accomplished by Milli-Q water and soap leaching enabled a change in Swedish sediment classification from the highest class to the second highest class. The highest reduction of Zn was in HPC leached samples (39% removal) and Cu in EDDS leached samples (33% removal). Although high metal and OT leaching were achieved, none of the investigated leaching agents are sufficiently effective for the removal of both metals and OTs. The results of this study indicate that leaching with ultra-clean water, such as Milli-Q water, may be sufficient to treat TBT contaminated sediments and potentially allow mass reuse.
Collapse
Affiliation(s)
- Anna Norén
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
| | - Karin Karlfeldt Fedje
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden; Recycling and Waste Management, Renova AB, Box 156, SE-401 22, Gothenburg, Sweden
| | - Ann-Margret Strömvall
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Sebastien Rauch
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Yvonne Andersson-Sköld
- Swedish National Road and Transport Research Institute (VTI), Box 8072, SE-402 78, Gothenburg, Sweden; Department of Architecture and Civil Engineering, Geology and Geotechnics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| |
Collapse
|
17
|
Abreu FEL, Lima da Silva JN, Castro ÍB, Fillmann G. Are antifouling residues a matter of concern in the largest South American port? JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122937. [PMID: 32768825 DOI: 10.1016/j.jhazmat.2020.122937] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/09/2020] [Accepted: 05/09/2020] [Indexed: 05/22/2023]
Abstract
In the present study, levels of booster biocides (diuron, Irgarol, chlorothalonil, dichlofluanid and DCOIT), butyltin compounds (TBT, DBT and MBT) and antifouling paint particles (APPs) were assessed in sediments of areas under the influence of the largest Latin American port, marinas, boat traffic and ship/boat maintenance facilities located within Santos-São Vicente Estuarine System (SSES). Contamination profile was directly related to local maritime activities, where sediments from the main navigation channel (MNC) presented low levels of antifouling residues while adjacent areas (AA), characterized by the presence of boats and boatyards, showed higher contamination considering all analyzed residues. Moreover, areas under the influence of fishing boats/yards presented relevant levels of butyltins (ΣBTs > 300 ng g-1) and APPs (>100 μg g-1), while marinas dominated by recreational boats showed higher booster biocides occurrence. Sites located nearby shipyards in the MNC and boatyards in the AA presented expressive amounts of APPs (>200 μg g-1). These APPs represent an important long-term source of biocides to the SSES. Thus, the profile of maritime activities in association to local oceanographic conditions drive the spatial distribution of antifouling residues within SESS, which in some case presented levels above sediment guidelines for TBT, DCOIT and diuron.
Collapse
Affiliation(s)
- Fiamma E L Abreu
- Instituto de Oceanografia, Universidade Federal do Rio Grande (IO -FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil; PPG em Oceanologia, Universidade Federal do Rio Grande (PPGO-FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil
| | - Juliane Natália Lima da Silva
- Instituto de Oceanografia, Universidade Federal do Rio Grande (IO -FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil; PPG em Química Tecnológica e Ambiental, Universidade Federal do Rio Grande (PPGQTA-FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil
| | - Ítalo Braga Castro
- PPG em Oceanologia, Universidade Federal do Rio Grande (PPGO-FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil; Instituto do Mar, Universidade Federal de São Paulo (IMAR-UNIFESP), Av. Almirante Saldanha da Gama, 11030-400, Santos, SP, Brazil
| | - Gilberto Fillmann
- Instituto de Oceanografia, Universidade Federal do Rio Grande (IO -FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil; PPG em Oceanologia, Universidade Federal do Rio Grande (PPGO-FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil; PPG em Química Tecnológica e Ambiental, Universidade Federal do Rio Grande (PPGQTA-FURG), Av. Itália s/n, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil.
| |
Collapse
|
18
|
Furdek Turk M, Ivanić M, Dautović J, Bačić N, Mikac N. Simultaneous analysis of butyltins and total tin in sediments as a tool for the assessment of tributyltin behaviour, long-term persistence and historical contamination in the coastal environment. CHEMOSPHERE 2020; 258:127307. [PMID: 32554007 DOI: 10.1016/j.chemosphere.2020.127307] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
This study presents a new approach for the investigation of tributyltin (TBT) behaviour and fate in the marine environment. The approach is based on a simultaneous analysis of butyltins (BuTs) and total Sn in sediments, thus enabling an assessment of long-term persistence and historical input of TBT. The study also presents first evaluation of the extent to which the TBT-antifouling paints contribute to the contamination of coastal environments with inorganic Sn; it was demonstrated that the inorganic Sn in the investigated areas primarily originates from TBT degradation. The study was conducted by analyzing BuTs and total Sn in sediments from 34 locations along the Croatian Adriatic coast. The results revealed that 85% of the locations were contaminated with both BuTs and inorganic Sn. The share of ƩBuTs/total Sn was low (<10%) even in sediments with low TBT degradation efficiency (TBT/ƩBuTs >40%), demonstrating that only small portion of TBT introduced into the water column reached the sediment before being degraded. This means that recent TBT input into the marine environment may be at least 10 times higher than the amount estimated if only BuTs levels in sediments are considered. It was also demonstrated that TBT concentration in sediments with TOC <1% is not a good indicator of the overall pollution level, even if TBT/TOC approach is used in pollution assessment. Finally, in situ investigation showed that resuspension of contaminated sediments leads to significant release of MBT and DBT into the water column, whereas TBT mainly remains in sediment.
Collapse
Affiliation(s)
- Martina Furdek Turk
- Ruđer Bošković Institute, Division for Marine and Environmental Research, 10000, Zagreb, Croatia.
| | - Maja Ivanić
- Ruđer Bošković Institute, Division for Marine and Environmental Research, 10000, Zagreb, Croatia
| | - Jelena Dautović
- Ruđer Bošković Institute, Division for Marine and Environmental Research, 10000, Zagreb, Croatia
| | - Niko Bačić
- Ruđer Bošković Institute, Division for Marine and Environmental Research, 10000, Zagreb, Croatia
| | - Nevenka Mikac
- Ruđer Bošković Institute, Division for Marine and Environmental Research, 10000, Zagreb, Croatia
| |
Collapse
|
19
|
Hu J, Sun B, Zhang H, Lu A, Zhang H, Zhang H. Terpolymer resin containing bioinspired borneol and controlled release of camphor: Synthesis and antifouling coating application. Sci Rep 2020; 10:10375. [PMID: 32587290 PMCID: PMC7316772 DOI: 10.1038/s41598-020-67073-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 06/01/2020] [Indexed: 11/09/2022] Open
Abstract
Marine biofouling can cause a biocorrosion, resulting in degradation and failure of materials and structures. In order to prevent sea creatures from attaching to the surface, in this work, a new environmentally friendly antifouling coating by incorporating antibacterial polymers and natural antifouling agents has been designed and synthesized. Surface chemical composition and changes in surface hydrophobicity were studied by FTIR spectroscopy and contact angle measurements, respectively. Measurements of mass loss of antifouling resin were also carried out and the release rate of camphor from antifouling coating was tested by using UPLC. It had been found that the changes in the content of triisopropylsilylacrylate (TIPSA) (from 4% to 12%) and isobornyl methacrylate (IBOMA) (from 50% to 16.7%) did not significantly affect the release of camphor. The content of IBOMA decreased from 50% to 16.7%, the antifouling performance of the resin system appeared slightly reduced. In addition, rosin could help regulate the release rate of the resin system to desorb camphor slowly in water in a controlled manner. Furthermore, the antifouling capability of as-prepared samples was evaluated via algae suppression experiments and marine field tests. This study highlighted the environmentally friendly antifouling coating as a potential candidate and efficient strategy to prohibit biofouling in seawater.
Collapse
Affiliation(s)
- Jiankun Hu
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Baoku Sun
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Haichun Zhang
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Ading Lu
- Zhejiang Ocean Development Research Institute, No. 10, Tiyu Road, Lincheng, Zhoushan, 316021, China
| | - Huiqiu Zhang
- Institute of Innovation & Application, Zhejiang Ocean University, No. 1 Haida South Rd, Lincheng, Changzhi Island, Zhoushan, 316022, China
| | - Hailong Zhang
- Institute of Innovation & Application, Zhejiang Ocean University, No. 1 Haida South Rd, Lincheng, Changzhi Island, Zhoushan, 316022, China.
| |
Collapse
|
20
|
Norén A, Karlfeldt Fedje K, Strömvall AM, Rauch S, Andersson-Sköld Y. Integrated assessment of management strategies for metal-contaminated dredged sediments - What are the best approaches for ports, marinas and waterways? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 716:135510. [PMID: 31837871 DOI: 10.1016/j.scitotenv.2019.135510] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 06/10/2023]
Abstract
Sediments in ports, marinas and waterways around the world are often contaminated with metals arising from anthropogenic activities. Regular dredging is needed to achieve an appropriate water depth and reduce the environmental impact of pollutants. The aim of this study was to develop an integrated assessment method for comparing various management strategies for dredged sediments at six case study sites in Sweden. Short- and long-term environmental impacts were investigated for different management approaches, including landfilling, deep-sea disposal, metal extraction in combination with the two aforementioned, and natural recovery (no dredging). The potential value of metals in the sediments was estimated using sediment metal contents and current metal prices. Additionally, an assessment of how metal extraction could result in lower management costs was carried out. The cost of the different management approaches was calculated and evaluated together with the corresponding environmental impacts. This study shows that there is a monetary value in dredged materials, in terms of metal content, and that the materials can potentially be used for metal extraction. Metal extraction may also help to reduce the management costs, as cleaner materials are cheaper to handle. The choice of metal recovery method is important in both monetary and environmental terms, potentially contributing to a circular economy. In the future, metal recovery may become more profitable, as technologies are improved, and due to probable increases in metal prices and landfill costs.
Collapse
Affiliation(s)
- Anna Norén
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.
| | - Karin Karlfeldt Fedje
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden; Recycling and Waste Management, Renova AB, Box 156, SE-401 22 Gothenburg, Sweden
| | - Ann-Margret Strömvall
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Sebastien Rauch
- Department of Architecture and Civil Engineering, Water Environment Technology, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Yvonne Andersson-Sköld
- Swedish National Road and Transport Research Institute (VTI), Box 8072, SE-402 78 Gothenburg, Sweden
| |
Collapse
|
21
|
Li P, Dsikowitzky L, Diao X, Yang F, Li QX, Schwarzbauer J. Unusual tin organics, DDX and PAHs as specific pollutants from dockyard work in an industrialized port area in China. CHEMOSPHERE 2020; 243:125284. [PMID: 31759210 DOI: 10.1016/j.chemosphere.2019.125284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/28/2019] [Accepted: 10/30/2019] [Indexed: 06/10/2023]
Abstract
In order to recognize organic contaminants responsible for ecological stresses from intensive shipping traffic and dockyard works, this study aimed at characterizing the sediment contamination of a large industrialized port located in Hainan Island, China. Surface sediment samples were collected from 17 stations including the main docks, the dockyards and the major industrial wastewater outlets. Organotin compounds, the pesticide DDT (bis(chlorophenyl)trichloroethane) and its metabolites and polycyclic aromatic compounds were identified as main pollutant groups by GC/MS applying a non-target screening approach. The pesticide DDT and its metabolites were found in the same samples as the organotin derivatives pointing to similar emission sources. The concurrent presence of these compounds in the dockyard samples suggests a combined usage of organotin compounds and DDT as active ingredients in antifouling paints in Yangpu. As highly specific molecular indicators for dockyard activities, butyltin and phenyltin compounds were identified. Noteworthy, also tributylmethyltin and triphenylmethyltin were detected, likely resulting from microbial assisted biomethylation of synthetic organotin compounds in the sediments. The concentrations of PAHs, DDX and TBT in sediments from dockyards exceeded global sediment quality guidelines and the toxicity thresholds, and potentially have adverse biological effects on marine organisms.
Collapse
Affiliation(s)
- Ping Li
- School of Ecology and Environment, Hainan University, Renmin Avenue 58, Haikou, 570228, China; Institute of Geology and Geochemistry of Petroleum and Coal, RWTH Aachen University, Lochnerstrasse 4-20, Aachen, 52056, Germany; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Larissa Dsikowitzky
- Institute of Geology and Geochemistry of Petroleum and Coal, RWTH Aachen University, Lochnerstrasse 4-20, Aachen, 52056, Germany
| | - Xiaoping Diao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Fei Yang
- School of Ecology and Environment, Hainan University, Renmin Avenue 58, Haikou, 570228, China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East West Road, Honolulu, HI 96822, USA
| | - Jan Schwarzbauer
- Institute of Geology and Geochemistry of Petroleum and Coal, RWTH Aachen University, Lochnerstrasse 4-20, Aachen, 52056, Germany.
| |
Collapse
|
22
|
Charry MP, Keesing V, Gaw S, Costello MJ, Champeau O, Tremblay LA. Assessing the Efficacy of a Sediment Remediation Program Using Benthic and Pelagic Copepod Bioassays. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:492-499. [PMID: 31692086 DOI: 10.1002/etc.4632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 04/16/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Tributyltin is an organotin chemical that has been commonly used in ship antifouling paints. Despite the global total prohibition of tributyltin-based paint in 2008, tributyltin continues to be found at toxic levels in areas of high maritime traffic such as ports and harbors. A remediation program was conducted at a New Zealand port to reduce tributyltin and copper concentrations to acceptable values. The present study assessed the efficacy of the program using a combination of chemical analyses and copepod bioassays. Sediment and water samples were collected at 3 locations along a spatial gradient within the port, and concentrations of various organotin compounds and trace metal levels were measured pre- and postremediation. The toxicity of sediment and elutriate samples was estimated by benthic and pelagic copepod bioassays. Although acute toxicity in sediment samples was reduced following remediation, reproductive success was still affected for the benthic copepod. This approach combining chemical analysis and bioassays is promising for assessing the efficacy of remediation processes at contaminated marine sites. Environ Toxicol Chem 2020;39:492-499. © 2019 SETAC.
Collapse
Affiliation(s)
- Maria P Charry
- Cawthron Institute, Nelson, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | | | - Sally Gaw
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
| | - Mark J Costello
- Institute of Marine Science, University of Auckland, Auckland, New Zealand
| | | | - Louis A Tremblay
- Cawthron Institute, Nelson, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| |
Collapse
|
23
|
Katz TA, Grimm SL, Kaushal A, Dong J, Treviño LS, Jangid RK, Gaitán AV, Bertocchio JP, Guan Y, Robertson MJ, Cabrera RM, Finegold MJ, Foulds CE, Coarfa C, Walker CL. Hepatic Tumor Formation in Adult Mice Developmentally Exposed to Organotin. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:17010. [PMID: 31939706 PMCID: PMC7015627 DOI: 10.1289/ehp5414] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 11/26/2019] [Accepted: 11/26/2019] [Indexed: 05/10/2023]
Abstract
BACKGROUND Tributyltin (TBT) is a persistent and bioaccumulative environmental toxicant. Developmental exposure to TBT has been shown to cause fatty liver disease (steatosis), as well as increased adiposity in many species, leading to its characterization as an obesogen. OBJECTIVE We aimed to determine the long-term effects of developmental TBT exposure on the liver. METHODS C57BL/6J mice were exposed to a dose of TBT (0.5 mg / kg body weight per day; 3.07 μ M ) below the current developmental no observed adverse effect level (NOAEL) via drinking water, or drinking water alone, provided to the dam from preconception through lactation. Sires were exposed during breeding and lactation. Pups from two parity cycles were included in this study. Animals were followed longitudinally, and livers of offspring were analyzed by pathological evaluation, immunohistochemistry, immunoblotting, and RNA sequencing. RESULTS Developmental exposure to TBT led to increased adiposity and hepatic steatosis at 14 and 20 weeks of age and increased liver adenomas at 45 weeks of age in male offspring. Female offspring displayed increased adiposity as compared with males, but TBT did not lead to an increase in fatty liver or tumor development in female offspring. Liver tumors in male mice were enriched in pathways and gene signatures associated with human and rodent nonalcoholic fatty liver disease (NAFLD) and hepatocellular carcinoma (HCC). This includes down-regulation of growth hormone receptor (GHR) and of STAT5 signaling, which occurred in response to TBT exposure and preceded liver tumor development. CONCLUSIONS These data reveal a previously unappreciated ability of TBT to increase risk for liver tumorigenesis in mice in a sex-specific manner. Taken together, these findings provide new insights into how early life environmental exposures contribute to liver disease in adulthood. https://doi.org/10.1289/EHP5414.
Collapse
Affiliation(s)
- Tiffany A. Katz
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Sandra L. Grimm
- Advanced Technology Cores, Baylor College of Medicine, Houston, Texas, USA
| | - Akhilesh Kaushal
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
| | - Jianrong Dong
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Lindsey S. Treviño
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
- Division of Health Equities, Department of Population Sciences, City of Hope, Duarte, California, USA
| | - Rahul K. Jangid
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Adriana V. Gaitán
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Jean-Philippe Bertocchio
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
- Department of Genitourinary Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Youchen Guan
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | | | - Robert M. Cabrera
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Milton J. Finegold
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Charles E. Foulds
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Cristian Coarfa
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
- Advanced Technology Cores, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Cheryl Lyn Walker
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| |
Collapse
|
24
|
Watermann B, Eklund B. Can the input of biocides and polymeric substances from antifouling paints into the sea be reduced by the use of non-toxic hard coatings? MARINE POLLUTION BULLETIN 2019; 144:146-151. [PMID: 31179981 DOI: 10.1016/j.marpolbul.2019.04.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 04/08/2019] [Accepted: 04/23/2019] [Indexed: 05/14/2023]
Abstract
Antifouling coatings are used to protect boat hulls from fouling organisms. The paints are designed to release biocides and by this prevent fouling organisms to attach. Until now the simultaneous release of the bulk plastic material has been over-looked. In this study the amount of antifouling paints on ships and leisure boats in Scandinavian countries and Germany has been compared and a calculation of the release of micro plastics has been performed. The result shows that use of a biocide-free hard coating will completely reduce outlet of biocides and the input of polymers will dramatically be reduced from at the most 5% in comparison to traditional paints where the release rate of plastics is estimated to be 70-85%. The advantage for the boat owners will be large since the hard maintenance work will be reduced, release of micro plastics will be low and thus lead to an improved environment.
Collapse
|
25
|
Muller-Karanassos C, Turner A, Arundel W, Vance T, Lindeque PK, Cole M. Antifouling paint particles in intertidal estuarine sediments from southwest England and their ingestion by the harbour ragworm, Hediste diversicolor. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 249:163-170. [PMID: 30884395 DOI: 10.1016/j.envpol.2019.03.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 05/02/2023]
Abstract
Antifouling paint particles (APPs) of between 500 μm and >2 mm in diameter have been identified in silty, intertidal estuarine sediments through a combination of microscopy and x-ray fluorescence spectrometry. APPs were heterogeneously distributed, with maximal concentrations of 430 particles L-1 (0.2 g L-1) near to a facility where boats are regularly maintained and 400 particles L-1 (4.2 g L-1) at a location where old boats had been abandoned, with the majority of particles encountered in the finest size fraction retrieved. APPs contained variable concentrations of Cu, Zn, Sn and Pb, with respective maxima of 562,000, 269,000, 9,970 and 126,000 mg kg-1. These characteristics are attributed to a multitude of contemporary and historic sources of an assortment of formulations and result in significant but heterogeneous metal contamination of local sediments. APPs were also identified in the guts of the deposit-feeding ragworm, Hediste diversicolor, that inhabited sediments impacted by abandoned boats or boating activities. The tissue of H. diversicolor was particularly enriched in Cu where ingested APPs were observed, with a significant correlation between dry weight Cu concentrations in the two media (r = 0.734) presumably reflecting the inability of the animal to regulate this metal. While the toxicity of APPs requires further investigation, there is clearly a need for stricter regulations on antifouling wastes in boatyards and marinas and a requirement to better manage abandoned boats.
Collapse
Affiliation(s)
| | - Andrew Turner
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK.
| | - William Arundel
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK
| | - Tom Vance
- PML Applications, Prospect Place, Plymouth, PL1 3DH, UK
| | - Penelope K Lindeque
- Marine Ecology and Biodiversity Group, Plymouth Marine Laboratory, Prospect Place, Plymouth, PL1 3DH, UK
| | - Matthew Cole
- Marine Ecology and Biodiversity Group, Plymouth Marine Laboratory, Prospect Place, Plymouth, PL1 3DH, UK
| |
Collapse
|
26
|
Ma Y, Chen M, Mou R, Cao Z. Simultaneous determination of three organotin pesticides in fruits and vegetables by high-performance liquid chromatography/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33:867-874. [PMID: 30735598 DOI: 10.1002/rcm.8409] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/28/2019] [Accepted: 02/01/2019] [Indexed: 06/09/2023]
Abstract
RATIONALE The presence of organotins in the environment affects food safety, making it important to monitor the levels of organotin pesticides (OTPs) in fruit and vegetable samples. METHODS In the present study, a simple and low cost method for simultaneous determination of three OTPs (azocyclotin, fenbutatin oxide and triphenyltin hydroxide) in vegetable and fruit samples was developed and validated, based on solid-phase extraction and liquid chromatography/tandem mass spectrometry. RESULTS Extraction with acetonitrile containing 0.2% formic acid positively affected the recoveries of the three OTPs. Moreover, the simultaneous purification of the three OTPs was the most efficient using mixed-mode cation-exchange cartridges and 5.0% ammonium hydroxide in methanol as eluent, and, in this case, mild matrix effects (-9.3% to 21.6%) were obtained for the three OTPs monitored. The developed method reached limits of quantification of 1 μg kg-1 , and linearity was satisfactory, with correlation coefficients >0.995. A fortification study showed that when spiked at 1.0-50.0 μg kg-1 the mean trueness values were from 72.3 to 110.0% in all matrices (three vegetables and three fruits). The intra-day precision was <14.1%, and the inter-day precision (n = 11) was <18.2%. CONCLUSIONS The proposed method was successfully applied to the simultaneous analysis of three OTPs in vegetables and fruits.
Collapse
Affiliation(s)
- Youning Ma
- China National Rice Research Institute, Hangzhou, Zhejiang, 311400, China
| | - Mingxue Chen
- China National Rice Research Institute, Hangzhou, Zhejiang, 311400, China
| | - Renxiang Mou
- China National Rice Research Institute, Hangzhou, Zhejiang, 311400, China
| | - Zhaoyun Cao
- China National Rice Research Institute, Hangzhou, Zhejiang, 311400, China
| |
Collapse
|
27
|
Lagerström M, Yngsell D, Eklund B, Ytreberg E. Identification of commercial and recreational vessels coated with banned organotin paint through screening of tin by portable XRF. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:107-114. [PMID: 30236930 DOI: 10.1016/j.jhazmat.2018.09.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/22/2018] [Accepted: 09/12/2018] [Indexed: 06/08/2023]
Abstract
The most effective biocide used historically in antifouling paints is tributyltin (TBT). However, due to its extreme toxicity to non-target organisms and its persistence in the environment, the use of TBT and other organotin compounds (OTCs) was restricted in EU on leisure boats and ships in 1989 and 2003, respectively. Nevertheless, studies worldwide still report TBT to be released from both ships and leisure boats. Here, we present a new application for a field portable X-ray fluorescence spectrometer (XRF) used for screening for organotin paint through measurements of tin (Sn) on leisure boats and ships. Measurements on ships built after the restrictions showed concentrations of up to 68 μg Sn/cm2, likely due to impurities of inorganic Sn, as shown through chemical analysis of 21 organotin-free paints. A threshold value of 100 μg Sn/cm2 is suggested, where exceedance indicates presence of OTCs. Screening with the XRF method showed 10% of the commercial vessels (n = 30) and 23-29% of leisure boats (n = 693, investigated in this and in a previous study) to hold concentrations exceeding 100 μg Sn/cm2. The XRF technique presented here provides a useful tool for quick screening and identification of vessels holding banned organotin paint.
Collapse
Affiliation(s)
- Maria Lagerström
- Department of Mechanics and Maritime Sciences, Chalmers University of Technology, SE 412 96, Gothenburg, Sweden.
| | - Daniel Yngsell
- Department of Mechanics and Maritime Sciences, Chalmers University of Technology, SE 412 96, Gothenburg, Sweden.
| | - Britta Eklund
- Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, SE-106 91, Stockholm, Sweden.
| | - Erik Ytreberg
- Department of Mechanics and Maritime Sciences, Chalmers University of Technology, SE 412 96, Gothenburg, Sweden.
| |
Collapse
|
28
|
Jin H, Zhang T, Bing W, Dong S, Tian L. Antifouling performance and mechanism of elastic graphene-silicone rubber composite membranes. J Mater Chem B 2019; 7:488-497. [PMID: 32254736 DOI: 10.1039/c8tb02648c] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Composite coatings have attracted great attention as an eco-friendly and economic solution to prevent ship hulls from biofouling. Inspired by the unstable surfaces of marine organisms with antifouling properties, this study describes the preparation of graphene-silicone rubber composite membranes. The membranes are characterized by a low surface energy and an adjustable elastic modulus, and these properties are conducive to preventing biofouling. Bacterial attachment was tested under both quasi-static and hydrodynamic conditions, and one rigid polystyrene sheet was used as the control group to verify the antifouling effects of unstable surfaces. The polystyrene sheet and the elastic membranes showed similar antifouling performance under quasi-static conditions. However, under hydrodynamic conditions, the elastic membranes showed better antifouling performance than the rigid polystyrene sheet. The results obtained using a laser-displacement sensor showed that micron-scale deformations were present on the elastic surface, and a mechanical model was employed to verify this conclusion. This study first confirmed the antifouling effects of the unstable surface, and proposed a model to reveal the antifouling mechanism of the unstable surface. According to the bacterial attachment test, a new generation membrane was made showing antifouling capacity with just 0.36 wt% graphene included during the fabrication of the membrane. This study provided a deeper insight into the antifouling mechanism of the elastic surface, and the membrane (0.36 wt%) may be promising for practical applications.
Collapse
Affiliation(s)
- Huichao Jin
- College of Physics, Jilin University, No. 2699 Qianjin Street, Changchun 130012, China
| | | | | | | | | |
Collapse
|
29
|
Merlo E, Silva IV, Cardoso RC, Graceli JB. The obesogen tributyltin induces features of polycystic ovary syndrome (PCOS): a review. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2018; 21:181-206. [PMID: 30015594 DOI: 10.1080/10937404.2018.1496214] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a heterogeneous syndrome characterized by abnormal reproductive cycles, irregular ovulation, and hyperandrogenism. This complex disorder has its origins both within and outside the hypothalamic-pituitary-ovarian axis. Cardio-metabolic factors, such as obesity and insulin resistance, contribute to the manifestation of the PCOS phenotype. Polycystic ovary syndrome is one of the most common endocrine disorders among women of reproductive age. Growing evidence suggested an association between reproductive and metabolic features of PCOS and exposure to endocrine-disrupting chemicals (EDC), such as bisphenol A. Further, the environmental obesogen tributyltin (TBT) was shown to induce reproductive, metabolic and cardiovascular abnormalities resembling those found in women and animal models of PCOS. However, the causal link between TBT exposure and PCOS development remains unclear. The objective of this review was to summarize the most recent research findings on the potential association between TBT exposure and development of PCOS-like features in animal models and humans.
Collapse
Affiliation(s)
- Eduardo Merlo
- a Department of Morphology , Federal University of Espirito Santo , Vitoria, Brazil
| | - Ian V Silva
- a Department of Morphology , Federal University of Espirito Santo , Vitoria, Brazil
| | - Rodolfo C Cardoso
- b Department of Animal Science , Texas A&M University , College Station, TX, USA
| | - Jones B Graceli
- a Department of Morphology , Federal University of Espirito Santo , Vitoria, Brazil
| |
Collapse
|
30
|
Quintas PY, Oliva AL, Alvarez MB, Arias AH, Domini CE, Garrido M, Marcovecchio JE. Fast and Feasible Ultrasound-Assisted Pretreatment for the Determination of Organotin Compounds in Environmental Samples. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2018; 74:645-655. [PMID: 29299658 DOI: 10.1007/s00244-017-0494-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 12/15/2017] [Indexed: 06/07/2023]
Abstract
The goal of this study was to improve an already established reference method, such as the one devoted to organotin compounds determination (Reference Method for Marine Pollution Studies, No. 59, UNEP). The proposed upgrade consists of replacing the mechanical shaking by ultrasound energy and applying low temperature throughout the whole procedure. The optimization of the new operational conditions was performed by using a factorial design. Quality control was performed using a certified sediment reference material (PACS-2) for sediments (82.5-97% of recovery) and recoveries on spiked samples for suspended particulate matter (SPM) and mussels (94-100%). The proposed procedure was applied to surface sediment samples, SPM, and native bivalve mollusks (Brachidontes rodriguezii) collected in Bahia Blanca estuary, a very industrialized zone. The relative standard deviation (RSD %) of the environmental samples were less than 7.9%. It is important to note that the proposed procedure reduced the sample pretreatment time about seven times.
Collapse
Affiliation(s)
- Pamela Y Quintas
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS-CONICET), Bahía Blanca, Argentina.
| | - Ana L Oliva
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS-CONICET), Bahía Blanca, Argentina
| | - Mónica B Alvarez
- Departamento de Química, Instituto de Química del Sur, INQUISUR (UNS-CONICET), Sección Química Analítica, Universidad Nacional del Sur, Av. Alem 1253, B8000CPB, Bahía Blanca, Argentina
| | - Andres H Arias
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS-CONICET), Bahía Blanca, Argentina
| | - Claudia E Domini
- Departamento de Química, Instituto de Química del Sur, INQUISUR (UNS-CONICET), Sección Química Analítica, Universidad Nacional del Sur, Av. Alem 1253, B8000CPB, Bahía Blanca, Argentina
| | - Mariano Garrido
- Departamento de Química, Instituto de Química del Sur, INQUISUR (UNS-CONICET), Sección Química Analítica, Universidad Nacional del Sur, Av. Alem 1253, B8000CPB, Bahía Blanca, Argentina.
| | - Jorge E Marcovecchio
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS-CONICET), Bahía Blanca, Argentina
| |
Collapse
|
31
|
Eklund B, Watermann B. Persistence of TBT and copper in excess on leisure boat hulls around the Baltic Sea. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:14595-14605. [PMID: 29532372 PMCID: PMC5973951 DOI: 10.1007/s11356-018-1614-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 02/25/2018] [Indexed: 05/25/2023]
Abstract
A handheld XRF-analyzer specially calibrated for measurements of metals on plastic boat hulls has been used on leisure boats in Denmark (DK), Finland (FI), and Germany (DE). The results on tin and copper are presented as μg metal/cm2. Tin is a proxy for the occurrence of organotin compounds on the boat. Two or three sites were visited in each country and between 25 and 90 boats were measured at each site. Every boat was measured at six to eight places, and the results are presented both as mean and median values. Linear regression of mean to median values of the 377 data pairs shows high relationship with R2 = 0.9566 for tin and R2 of 0.9724 for copper and thus both ways of calculation may be used. However, for regulative use, it is suggested that all individual measurements on each boat should be presented and used for decisions of removal or sealing of boat hulls. The results are compared with published data from different parts of Sweden, i.e., boats in fresh water, brackish water, and salt water. The results show that tin with mean values > 50 μg Sn/cm2 is still found on 42, 24, and 23% of the boats in DK, FI, and DE, respectively. The corresponding percentages based on median values are 38, 22, and 18% for DK, FI, and DE, respectively. The variation among boats is high with a maximum mean value of 2000 μg Sn/cm2. As comparison, one layer of an old TBT antifouling paint Hempels Hard racing superior, corresponds to 300 μg Sn/cm2. The percentage of boats with tin > 400 μg Sn/cm2 content based on mean values was 10% in DK, 5% in FI, and 1% in DE. The corresponding median values were 9, 6, and 1% for DK, FI, and DE. Copper, > 100 μg Cu/cm2, was detected on all measured boats in DK and in DE and on all but 3% of the FI boats. One layer of Hempels MilleXtra corresponds to ̴ 4000 μg Cu/cm2. The recommendation on the can is to apply two layers. The proportion of boats with higher mean copper values than 8000 μg Cu/cm2 was 51, 56, and 61 for boats in DK, FI, and DE, respectively. The proportion based on median values > 8000 μg Cu/cm2 was 50, 54, and 61% for DK, FI, and DE. The conclusion is that many leisure boats around the Baltic Sea still display or possess antifouling paints containing organotin compounds and that more than half of the boats have more copper than needed for one boat season according to the paint producers. Much of these known toxic compounds will probably be released into the environment and harm the biota. The calibrated XRF-method, intended for area measurements on boat hulls, is an easy and cheap way to detect boats with organotin compounds and high copper content. We recommend environmental authorities to use this method for identification of such boats and to use the results for requesting measures to minimize further leakage to the environment.
Collapse
Affiliation(s)
- Britta Eklund
- Department of Environmental Science and Analytical Chemistry, ACES, Stockholm University, Stockholm, Sweden.
| | | |
Collapse
|
32
|
Dong Y, Zhao Y, Zhu Q, Wang Z, Shan Y, Akingbemi BT, Chen R, Zhu L, Ge RS. Gestational exposure to tetrabutyltin blocks rat fetal Leydig cell development. Reprod Toxicol 2018; 78:111-119. [PMID: 29627429 DOI: 10.1016/j.reprotox.2018.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 03/28/2018] [Accepted: 04/03/2018] [Indexed: 11/24/2022]
Abstract
Tetrabutyltin is a stable organotin and may exhibit endocrine disrupting properties. Herein, we investigated effects of tetrabutyltin on the development of rat fetal Leydig cells, which support differentiation of the male reproductive tract in late gestation. Female pregnant Sprague Dawley rats were gavaged with tetrabutyltin (0, 100, 200, and 500 mg/kg) from gestational day (GD) 12 to GD 21. Tetrabutyltin dose-dependently decreased testicular testosterone levels (0.756 ± 0.208 and 0.813 ± 0.277 ng/testis at the 200 and 500 mg/kg doses, respectively) compared to control (1.692 ± 0.218 ng/testis) at GD 21. Furthermore, tetrabutyltin induced fetal Leydig cell aggregation, decreased fetal Leydig cell size and cytoplasmic size at the ≥100 mg/kg doses, and downregulated the expression levels of Scarb1, Cyp17a1, and Insl3 at doses ≥100 mg/kg and Star expression at 200 mg/kg. Taking together, the present results indicated that prenatal exposure of male rats to tetrabutyltin affected fetal Leydig cell development.
Collapse
Affiliation(s)
- Yaoyao Dong
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yu Zhao
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Qiqi Zhu
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Zhe Wang
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yuanyuan Shan
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Benson T Akingbemi
- Department of Anatomy, Physiology and Pharmacology, Auburn University, Auburn AL 36849, USA
| | - Ruijie Chen
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| | - Lihe Zhu
- Department of Pathology, Wenzhou Hospital of Integrated Traditional and Western Medicine, Wenzhou 325000, China.
| | - Ren-Shan Ge
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| |
Collapse
|
33
|
Vogt ÉL, Model JFA, Vinagre AS. Effects of Organotins on Crustaceans: Update and Perspectives. Front Endocrinol (Lausanne) 2018; 9:65. [PMID: 29535684 PMCID: PMC5835110 DOI: 10.3389/fendo.2018.00065] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/13/2018] [Indexed: 12/17/2022] Open
Abstract
Organotins (OTs) are considered some of the most toxic chemicals introduced into aquatic environments by anthropogenic activities. They are widely used for agricultural and industrial purposes and as antifouling additives on boat hull's paints. Even though the use of OTs was banned in 2008, elevated levels of OTs can still be detected in aquatic environments. OTs' deleterious effects upon wildlife and experimental animals are well documented and include endocrine disruption, immunotoxicity, neurotoxicity, genotoxicity, and metabolic dysfunction. Crustaceans are key members of zooplankton and benthic communities and have vital roles in food chains, so the endocrine-disrupting effects of tributyltin (TBT) on crustaceans can affect other organisms. TBT can disrupt carbohydrate and lipid homeostasis of crustaceans by interacting with retinoid X receptor (RXR) and crustacean hyperglycemic hormone (CHH) signaling. Moreover, it can also interact with other nuclear receptors, disrupting methyl farnesoate and ecdysteroid signaling, thereby altering growth and sexual maturity, respectively. This compound also interferes in cytochrome P450 system disrupting steroid synthesis and reproduction. Crustaceans are also important fisheries worldwide, and its consumption can pose risks to human health. However, some questions remain unanswered. This mini review aims to update information about the effects of OTs on the metabolism, growth, and reproduction of crustaceans; to compare with known effects in mammals; and to point aspects that still needs to be addressed in future studies. Since both macrocrustaceans and microcrustaceans are good models to study the effects of sublethal TBT contamination, novel studies should be developed using multibiomarkers and omics technology.
Collapse
Affiliation(s)
- Éverton L. Vogt
- Laboratório de Metabolismo e Endocrinologia Comparada (LAMEC), Departamento de Fisiologia, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Jorge F. A. Model
- Laboratório de Metabolismo e Endocrinologia Comparada (LAMEC), Departamento de Fisiologia, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Anapaula S. Vinagre
- Laboratório de Metabolismo e Endocrinologia Comparada (LAMEC), Departamento de Fisiologia, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| |
Collapse
|
34
|
Simultaneous Cell Disruption Extraction and Purification Followed by Two-phase Derivatization Procedure for the Determination of Organotin Compounds in Wet Biological Samples by GC–MS. Chromatographia 2017. [DOI: 10.1007/s10337-017-3399-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
35
|
Amini MM, Najafi E, Saeidian H, Mohammadi E, Shahabi SM, Ng SW. Effect of pseudohalogen groups on the optical properties and the structures of diorganotin coordination compounds based on the flexible ligand 1,2,3,4-tetra-(4-pyridyl)-butane. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3884] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Mostafa M. Amini
- Department of Chemistry; Shahid Beheshti University, G. C.; Tehran 1983963113 Iran
| | - Ezzatollah Najafi
- Department of Chemistry; Payame Noor University (PNU); Tehran 19395-3697 Iran
| | - Hamid Saeidian
- Department of Chemistry; Payame Noor University (PNU); Tehran 19395-3697 Iran
| | - Elham Mohammadi
- Department of Chemistry; Payame Noor University (PNU); Tehran 19395-3697 Iran
| | | | - Seik Weng Ng
- Department of Chemistry; University of Malaya; 50603 Kuala Lumpur Malaysia
| |
Collapse
|