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Ghaffour D, Leufroy A, Jitaru P. Experimental design optimisation and validation by accuracy profile of a novel method for Hg speciation analysis by HPLC-ICP-MS and application to Total Diet Studies. Anal Bioanal Chem 2024:10.1007/s00216-024-05371-0. [PMID: 38953918 DOI: 10.1007/s00216-024-05371-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 07/04/2024]
Abstract
This study addresses the development and validation of an analytical method for speciation analysis of mercury (inorganic/Hg2+ and methylmercury/CH3Hg+) in fishery products. The Hg species are separated by reversed-phase (RP) high-performance liquid chromatography (HPLC) coupled to inductively coupled plasma mass spectrometry (ICP-MS). The effective separation of Hg2+ and CH3Hg+ was achieved in <8 min using a peptide mapping RP column and a mobile phase containing 2-mercaptoethanol at 0.25% (v/v) and methanol at 1% (v/v). The optimization was carried out using an experimental design through response surface methodology (RSM) with central composite design (CCD), addressing both the HPLC separation and the sample extraction. The method validation was carried out based on the accuracy profile approach. For this purpose, six series of measurements were carried out in duplicate over a time span of 2 months. The limits of quantification (LOQ) were 2.5 µg/kg (wet weight, ww) for CH3Hg+ and 1.2 µg/kg (ww) for Hg2+. The intermediate reproducibility in terms of coefficient of variation (CVR) was <6%. The bias (%) obtained for the analysis of four certified reference materials (CRMs), namely TORT-3 (lobster hepatopancreas), SRM 1566-b (oyster tissue), SQID-1 (cuttlefish) and NMIJ CRM 7402-a (cod fish tissue) was <7%. This demonstrates the method robustness and suitability for routine speciation analysis of CH3Hg+ and Hg2+ in fishery products. The method is intended to be applied for the analysis of the panel of fishery products and fish-based foods in the framework of the (ongoing) third French Total Diet Study.
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Affiliation(s)
- Djaber Ghaffour
- Laboratory for Food Safety, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Université Paris-Est, 94700, Maisons-Alfort, France
| | - Axelle Leufroy
- Laboratory for Food Safety, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Université Paris-Est, 94700, Maisons-Alfort, France
| | - Petru Jitaru
- Laboratory for Food Safety, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Université Paris-Est, 94700, Maisons-Alfort, France.
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Halema AA, El-Beltagi HS, Al-Dossary O, Alsubaie B, Henawy AR, Rezk AA, Almutairi HH, Mohamed AA, Elarabi NI, Abdelhadi AA. Omics technology draws a comprehensive heavy metal resistance strategy in bacteria. World J Microbiol Biotechnol 2024; 40:193. [PMID: 38709343 DOI: 10.1007/s11274-024-04005-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 04/24/2024] [Indexed: 05/07/2024]
Abstract
The rapid industrial revolution significantly increased heavy metal pollution, becoming a major global environmental concern. This pollution is considered as one of the most harmful and toxic threats to all environmental components (air, soil, water, animals, and plants until reaching to human). Therefore, scientists try to find a promising and eco-friendly technique to solve this problem i.e., bacterial bioremediation. Various heavy metal resistance mechanisms were reported. Omics technologies can significantly improve our understanding of heavy metal resistant bacteria and their communities. They are a potent tool for investigating the adaptation processes of microbes in severe conditions. These omics methods provide unique benefits for investigating metabolic alterations, microbial diversity, and mechanisms of resistance of individual strains or communities to harsh conditions. Starting with genome sequencing which provides us with complete and comprehensive insight into the resistance mechanism of heavy metal resistant bacteria. Moreover, genome sequencing facilitates the opportunities to identify specific metal resistance genes, operons, and regulatory elements in the genomes of individual bacteria, understand the genetic mechanisms and variations responsible for heavy metal resistance within and between bacterial species in addition to the transcriptome, proteome that obtain the real expressed genes. Moreover, at the community level, metagenome, meta transcriptome and meta proteome participate in understanding the microbial interactive network potentially novel metabolic pathways, enzymes and gene species can all be found using these methods. This review presents the state of the art and anticipated developments in the use of omics technologies in the investigation of microbes used for heavy metal bioremediation.
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Affiliation(s)
- Asmaa A Halema
- Genetics Department, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - Hossam S El-Beltagi
- Agricultural Biotechnology Department, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa, 31982, Saudi Arabia.
- Biochemistry Department, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt.
| | - Othman Al-Dossary
- Agricultural Biotechnology Department, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Bader Alsubaie
- Agricultural Biotechnology Department, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Ahmed R Henawy
- Microbiology Department, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - Adel A Rezk
- Agricultural Biotechnology Department, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Plant Virology Department, Plant Pathology Research Institute, Agriculture Research Center, Giza, 12619, Egypt
| | - Hayfa Habes Almutairi
- Chemistry Department, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Amal A Mohamed
- Chemistry Dept, Al-Leith University College, Umm Al-Qura University, P.O. Box 6725- 21955, Makkah, Saudi Arabia
| | - Nagwa I Elarabi
- Genetics Department, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
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El-Beltagi HS, Halema AA, Almutairi ZM, Almutairi HH, Elarabi NI, Abdelhadi AA, Henawy AR, Abdelhaleem HAR. Draft genome analysis for Enterobacter kobei, a promising lead bioremediation bacterium. Front Bioeng Biotechnol 2024; 11:1335854. [PMID: 38260751 PMCID: PMC10800491 DOI: 10.3389/fbioe.2023.1335854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Lead pollution of the environment poses a major global threat to the ecosystem. Bacterial bioremediation offers a promising alternative to traditional methods for removing these pollutants, that are often hindered by various limitations. Our research focused on isolating lead-resistant bacteria from industrial wastewater generated by heavily lead-containing industries. Eight lead-resistant strains were successfully isolated, and subsequently identified through molecular analysis. Among these, Enterobacter kobei FACU6 emerged as a particularly promising candidate, demonstrating an efficient lead removal rate of 83.4% and a remarkable lead absorption capacity of 571.9 mg/g dry weight. Furthermore, E. kobei FACU6 displayed a remarkable a maximum tolerance concentration (MTC) for lead reaching 3,000 mg/L. To further investigate the morphological changes in E. kobei FACU6 in response to lead exposure, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed. These analyses revealed significant lead adsorption and intracellular accumulation in treated bacteria in contrast to the control bacterium. Whole-genome sequencing was performed to gain deeper insights into E. kobei's lead resistance mechanisms. Structural annotation revealed a genome size of 4,856,454 bp, with a G + C content of 55.06%. The genome encodes 4,655 coding sequences (CDS), 75 tRNA genes, and 4 rRNA genes. Notably, genes associated with heavy metal resistance and their corresponding regulatory elements were identified within the genome. Furthermore, the expression levels of four specific heavy metal resistance genes were evaluated. Our findings revealed a statistically significant upregulation in gene expression under specific environmental conditions, including pH 7, temperature of 30°C, and high concentrations of heavy metals. The outstanding potential of E. kobei FACU6 as a source of diverse genes related to heavy metal resistance and plant growth promotion makes it a valuable candidate for developing safe and effective strategies for heavy metal disposal.
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Affiliation(s)
- Hossam S. El-Beltagi
- Agricultural Biotechnology Department, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa, Saudi Arabi
- Biochemistry Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Asmaa A. Halema
- Genetics Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Zainab M. Almutairi
- Biology Department, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Hayfa Habes Almutairi
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Nagwa I. Elarabi
- Genetics Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | | | - Ahmed R. Henawy
- Microbiology Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Heba A. R. Abdelhaleem
- College of Biotechnology, Misr University for Science and Technology (MUST), 6th October City, Egypt
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4
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Ribeiro M, Galli E, Guérin T, Silva JAL, Castanheira I, Leufroy A, Jitaru P. Simultaneous speciation analysis of Hg and Se in fish by high-performance liquid chromatography and inductively coupled plasma-mass spectrometry following microwave-assisted enzymatic hydrolysis. Anal Bioanal Chem 2023; 415:7175-7186. [PMID: 37819434 DOI: 10.1007/s00216-023-04984-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/13/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023]
Abstract
This study reports the development and validation of a new analytical method for simultaneous speciation analysis of Se and Hg in fish muscle. For this purpose, four Se species (selenite/Se(IV), selenate/Se(VI), selenomethionine/SeMet, and selenocysteine/SeCys) and two Hg species (inorganic mercury/iHg and methylmercury/MeHg) were extracted simultaneously by microwave-assisted enzymatic hydrolysis and then separated by HPLC in less than 15 min by using a column with both anion and cation exchange mechanisms and a mobile phase consisting of a mixture of methanol 5% (v/v), 45 mM HNO3, 0.015% 2-mercaptoethanol, and 1.5 mM sodium 3-mercapto-1-propanesulfonate. The separated species of Hg and Se were detected online by inductively coupled plasma-mass spectrometry (ICP-MS). The speciation analysis method was validated by means of the accuracy profile approach by carrying out three series of measurements in duplicate on three different days over a time-span of 3 weeks. The limits of quantification (LOQ) are in the range of 0.010-0.013 mg/kg wet weight (ww) for all selenium species, except for Se(IV) (0.15 mg/kg ww), while the coefficient of variation in terms of intermediate reproducibility (CVR) was < 7%. The LOQ for MeHg was 0.006 mg/kg ww, while the CVR was 3%. The method was successfully applied to the analysis of muscle samples from four different fish species: rainbow trout, tuna, swordfish, and dogfish.
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Affiliation(s)
- M Ribeiro
- Laboratory for Food Safety, ANSES, Univ Paris Est Creteil, 14 Rue Pierre Et Marie Curie, 94700, Maisons-Alfort, France
- Departamento de Alimentação E Nutrição, Instituto Nacional de Saúde Doutor Ricardo Jorge, INSA IP, Avenida Padre Cruz, 1649-016, Lisbon, Portugal
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - E Galli
- Laboratory for Food Safety, ANSES, Univ Paris Est Creteil, 14 Rue Pierre Et Marie Curie, 94700, Maisons-Alfort, France
| | - T Guérin
- Strategy and Programmes Department, ANSES, 94701, Maisons-Alfort, France
| | - J A L Silva
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - I Castanheira
- Departamento de Alimentação E Nutrição, Instituto Nacional de Saúde Doutor Ricardo Jorge, INSA IP, Avenida Padre Cruz, 1649-016, Lisbon, Portugal
| | - A Leufroy
- Laboratory for Food Safety, ANSES, Univ Paris Est Creteil, 14 Rue Pierre Et Marie Curie, 94700, Maisons-Alfort, France
| | - P Jitaru
- Laboratory for Food Safety, ANSES, Univ Paris Est Creteil, 14 Rue Pierre Et Marie Curie, 94700, Maisons-Alfort, France.
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Veeraswamy D, Subramanian A, Mohan D, Ettiyagounder P, Selvaraj PS, Ramasamy SP, Veeramani V. Exploring the origins and cleanup of mercury contamination: a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30636-z. [PMID: 37964142 DOI: 10.1007/s11356-023-30636-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/19/2023] [Indexed: 11/16/2023]
Abstract
Mercury is a global pollutant that poses significant risks to human health and the environment. Natural sources of mercury include volcanic eruptions, while anthropogenic sources include industrial processes, artisanal and small-scale gold mining, and fossil fuel combustion. Contamination can arise through various pathways, such as atmospheric deposition, water and soil contamination, bioaccumulation, and biomagnification in food chains. Various remediation strategies, including phytoremediation, bioremediation, chemical oxidation/reduction, and adsorption, have been developed to address mercury pollution, including physical, chemical, and biological approaches. The effectiveness of remediation techniques depends on the nature and extent of contamination and site-specific conditions. This review discusses the challenges associated with mercury pollution and remediation, including the need for effective monitoring and management strategies. Overall, this review offers a comprehensive understanding of mercury contamination and the range of remediation techniques available to mitigate its adverse impacts.
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Affiliation(s)
- Davamani Veeraswamy
- Department of Environmental Sciences, Directorate of Natural Resource Management, Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu, India
- College of Engineering, Science and Environment, Global Centre for Environmental Remediation (GCER), ATC Building, The University of Newcastle, Callaghan Campus, Callaghan, NSW, 2308, Australia
| | - Arulmani Subramanian
- Department of Chemistry, Bannari Amman Institute of Technology, Sathyamangalam, 638 401, Tamil Nadu, India.
| | - Deepasri Mohan
- Division of Environmental Sciences, Sher-E-Kashmir University of Agricultural Sciences and Technology, Shalimar, 190025, Jammu and Kashmir Union Territory, India
| | - Parameswari Ettiyagounder
- Department of Environmental Sciences, Directorate of Natural Resource Management, Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu, India
| | - Paul Sebastian Selvaraj
- Department of Environmental Sciences, Directorate of Natural Resource Management, Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu, India
- College of Engineering, Science and Environment, Global Centre for Environmental Remediation (GCER), ATC Building, The University of Newcastle, Callaghan Campus, Callaghan, NSW, 2308, Australia
| | - Sangeetha Piriya Ramasamy
- Department of Environmental Sciences, Directorate of Natural Resource Management, Tamil Nadu Agricultural University, Coimbatore, 641 003, Tamil Nadu, India
- School of Water, Energy, and Environment, Cranfield University, Cranfield, MK43 0AL, UK
| | - Venkatesan Veeramani
- Department of Civil Engineering, University College of Engineering, Anna University, Ariyalur, 621 731, Tamil Nadu, India
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6
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Alishirazi M, Salmak S, Gitipour S. A comprehensive assessment to offer optimized remediation method for mercury contamination in Musa Bay by using hybrid Fuzzy AHP-VIKOR approach. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:8685-8707. [PMID: 37702854 DOI: 10.1007/s10653-023-01745-y] [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: 03/03/2023] [Accepted: 08/24/2023] [Indexed: 09/14/2023]
Abstract
Musa Bay, the largest wetland in Iran and one of the most important Hg-polluted media, plays a significant role in the ecosystem of the area and supports many forms of life. Mercury pollution has detrimental effects on the human body and at high levels leads to the loss of microorganisms in marine ecosystems. Hence, a comprehensive assessment for selecting an effective and sustainable remediation method is crucial to restoring the ecosystem promptly. The determination of a proper and practical treatment method not only is a case-based approach, but could be challenging due to its multi-criteria decision-making nature. Considering preferred crucial factors involved in the effectiveness of remedial actions, in this study a questionnaire is designed to assess the opinion of environmental experts, stakeholders, and some occupants of the area on remedial actions based on the importance weights of criteria. Subsequently, practical remediation and management strategies ranked by hybrid FVIKOR as a multi-criteria decision making (MCDM) method. Ranking results show that dredging and stabilization could offer a promising solution for the remediation of the case study. The results of the study demonstrate that the development of MCDM methods along with effective criteria and considering the analysis of the questionnaires, could offer the best remediation strategy for a specific contaminated site.
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Affiliation(s)
| | - Saba Salmak
- Department of Environmental Engineering, University of Tehran, Tehran, Iran.
| | - Saeid Gitipour
- Department of Environmental Engineering, University of Tehran, Tehran, Iran
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Indurkar PD, Raj SK, Kulshrestha V. Multivariate modeling and process optimization of Hg(II) remediation using solvothermal synthesized 2D MX/Fe 3O 4 by response surface methodology: characteristics and mechanism study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27687-7. [PMID: 37233927 DOI: 10.1007/s11356-023-27687-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/12/2023] [Indexed: 05/27/2023]
Abstract
Two-dimensional MXene with layered structure has recently emerged as a nanomaterial with fascinating characteristics and applicability. Herein, we prepared the newly modified magnetic MXene (MX/Fe3O4) nanocomposite using solvothermal approach and investigated its adsorption behavior to study the removal efficiency of Hg(II) ions from aqueous solution. The effect of adsorption parameters such as adsorbent dose, time, concentration, and pH were optimized using response surface methodology (RSM). The experimental data fitted well with quadratic model to predict the optimum conditions for maximum Hg(II) ion removal efficiency which were found to be at adsorbent dose 0.871 g/L, time 103.6 min, concentration 40.17 mg/L, and 6.5 pH respectively. To determine the adequacy of the developed model, a statistical analysis of variance (ANOVA) was used, which demonstrated high agreement between the experimental data and the suggested model. According to isotherm result, the experimental data were following the best agreement with the Redlich-Peterson isotherm model. The results of the experiments revealed that the maximum Langmuir adsorption capacity of 699.3 mg/g was obtained at optimum conditions, which was closed to the experimental adsorption capacity of 703.57 mg/g. The adsorption phenomena was well represented by the pseudo-second-order model (R2 = 0.9983). On the whole, it was clear that MX/Fe3O4 has lot of potential as a Hg(II) ion impurity removal agent in aqueous solutions.
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Affiliation(s)
- Pankaj D Indurkar
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Savan K Raj
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, India
- Department of Physics, The MK Bhavnagar University, Bhavnagar, 364 002, India
| | - Vaibhav Kulshrestha
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Guo Y, Sommer N, Martin K, Rasche F. Rhizophagus irregularis improves Hg tolerance of Medicago truncatula by upregulating the Zn transporter genes ZIP2 and ZIP6. MYCORRHIZA 2023; 33:23-32. [PMID: 36625901 PMCID: PMC9938064 DOI: 10.1007/s00572-022-01100-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Mercury (Hg) pollution of soils is a critical environmental problem. To rehabilitate Hg contaminated soils, arbuscular mycorrhizal (AM) fungi-based phytoremediation may be supportive, yet the functional potential of AM fungi in response to Hg exposure is unclear. In a greenhouse experiment, we assessed the response of Medicago truncatula (Hg tolerance index (TI), Hg partitioning) to different Hg concentrations [0 (Hg0), 25 (Hg25), 50 (Hg50) µg g-1] in treatments with (AM) and without (NM) inoculation of Rhizophagus irregularis. Additionally, zinc (Zn) uptake and the expression of two Zn transporter genes (ZIP2, ZIP6) were examined because Zn is an essential element for plants and shares the same outer electronic configuration as Hg, implying potential competition for the same transporters. The results showed that AM plants had a higher TI than NM plants. Plant roots were identified as dominant Hg reservoirs. AM inoculation reduced the root Hg concentration under Hg50 compared to the NM treatment. There was an interaction between Hg treatment and AM inoculation on Hg stem concentration, i.e., at Hg25, AM inoculation decreased the Hg translocation from roots to stems, while Hg translocation was increased at Hg50 compared to the NM treatment. Zn acquisition was improved by R. irregularis. The negative relationship between Hg and Zn concentrations in the roots of AM and NM plants implied potential competition for the same transporters, although the expression of Zn transporters was upregulated by AM inoculation at all Hg levels. In conclusion, this baseline study demonstrated that R. irregularis may play an important role in Hg tolerance of M. truncatula, suggesting its potential for Hg-contaminated phytoremediation.
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Affiliation(s)
- Yaqin Guo
- Department of Agronomy in the Tropics and Subtropics, Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, 70593, Stuttgart, Germany
| | - Nadine Sommer
- Department of Crop Physiology of Specialty Crops, Institute of Crop Science, University of Hohenheim, 70593, Stuttgart, Germany
| | - Konrad Martin
- Department of Agronomy in the Tropics and Subtropics, Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, 70593, Stuttgart, Germany
| | - Frank Rasche
- Department of Agronomy in the Tropics and Subtropics, Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, 70593, Stuttgart, Germany.
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Khan M, Soylak M. Deep Eutectic Solvent Based Liquid-Liquid Microextraction of Mercury in Water, Hair and Fish with Spectrophotometric Determination: A Green Protocol. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2121406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Mansoor Khan
- Faculty of Sciences, Department of Chemistry, Erciyes University, Kayseri, Turkey
- Technology Research & Application Center (TAUM), Erciyes University, Kayseri, Turkey
- Department of Chemistry, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
| | - Mustafa Soylak
- Faculty of Sciences, Department of Chemistry, Erciyes University, Kayseri, Turkey
- Technology Research & Application Center (TAUM), Erciyes University, Kayseri, Turkey
- Turkish Academy of Sciences (TUBA), Ankara, Turkey
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Sabreena, Hassan S, Bhat SA, Kumar V, Ganai BA, Ameen F. Phytoremediation of Heavy Metals: An Indispensable Contrivance in Green Remediation Technology. PLANTS (BASEL, SWITZERLAND) 2022; 11:1255. [PMID: 35567256 PMCID: PMC9104525 DOI: 10.3390/plants11091255] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 04/29/2022] [Accepted: 05/01/2022] [Indexed: 08/01/2023]
Abstract
Environmental contamination is triggered by various anthropogenic activities, such as using pesticides, toxic chemicals, industrial effluents, and metals. Pollution not only affects both lotic and lentic environments but also terrestrial habitats, substantially endangering plants, animals, and human wellbeing. The traditional techniques used to eradicate the pollutants from soil and water are considered expensive, environmentally harmful and, typically, inefficacious. Thus, to abate the detrimental consequences of heavy metals, phytoremediation is one of the sustainable options for pollution remediation. The process involved is simple, effective, and economically efficient with large-scale extensive applicability. This green technology and its byproducts have several other essential utilities. Phytoremediation, in principle, utilizes solar energy and has an extraordinary perspective for abating and assembling heavy metals. The technique of phytoremediation has developed in contemporary times as an efficient method and its success depends on plant species selection. Here in this synthesis, we are presenting a scoping review of phytoremediation, its basic principles, techniques, and potential anticipated prospects. Furthermore, a detailed overview pertaining to biochemical aspects, progression of genetic engineering, and the exertion of macrophytes in phytoremediation has been provided. Such a promising technique is economically effective as well as eco-friendly, decontaminating and remediating the pollutants from the biosphere.
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Affiliation(s)
- Sabreena
- Department of Environmental Science, University of Kashmir, Srinagar 190006, India; (S.); (S.H.)
| | - Shahnawaz Hassan
- Department of Environmental Science, University of Kashmir, Srinagar 190006, India; (S.); (S.H.)
| | - Sartaj Ahmad Bhat
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Vineet Kumar
- Department of Botany, Guru Ghasidas Vishwavidyalaya (A Central University), Chhattisgarh, Bilaspur 495009, India;
| | - Bashir Ahmad Ganai
- Department of Environmental Science, University of Kashmir, Srinagar 190006, India; (S.); (S.H.)
- Centre of Research for Development, University of Kashmir, Srinagar 190006, India
| | - Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
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Yu RQ, Barkay T. Microbial mercury transformations: Molecules, functions and organisms. ADVANCES IN APPLIED MICROBIOLOGY 2022; 118:31-90. [PMID: 35461663 DOI: 10.1016/bs.aambs.2022.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Mercury (Hg) methylation, methylmercury (MeHg) demethylation, and inorganic redox transformations of Hg are microbe-mediating processes that determine the fate and cycling of Hg and MeHg in many environments, and by doing so influence the health of humans and wild life. The discovery of the Hg methylation genes, hgcAB, in the last decade together with advances in high throughput and genome sequencing methods, have resulted in an expanded appreciation of the diversity of Hg methylating microbes. This review aims to describe experimentally confirmed and recently discovered hgcAB gene-carrying Hg methylating microbes; phylogenetic and taxonomic analyses are presented. In addition, the current knowledge on transformation mechanisms, the organisms that carry them out, and the impact of environmental parameters on Hg methylation, MeHg demethylation, and inorganic Hg reduction and oxidation is summarized. This knowledge provides a foundation for future action toward mitigating the impact of environmental Hg pollution.
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Affiliation(s)
- Ri-Qing Yu
- Department of Biology, University of Texas at Tyler, Tyler, TX, United States.
| | - Tamar Barkay
- Department of Biochemistry and Microbiology, Rutgers, The State University of New Jersey, New Brunswick, NJ, United States
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12
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The Legacy of Mercury Contamination from a Past Leather Manufacturer and Health Risk Assessment in an Urban Area (Pisa Municipality, Italy). SUSTAINABILITY 2022. [DOI: 10.3390/su14074367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An abandoned open green space in the urban setting of the Municipality of Pisa (Tuscany, Italy) has been designed for renewal to foster the development of recreational activities and improve the lives of the surrounding communities. However, the geochemical site characterization revealed Pb, Cu, Zn and Hg concentrations in the soil exceeding the thresholds imposed by Italian regulations for residential use. Pb, Cu and Zn contents likely reflect the effects of urban vehicle traffic, while Hg contamination represents the legacy of a past artisanal tannery that used Hg(II)-chloride in leather processing in the mid-1900s. Mercury is widely distributed in the area, with the highest concentration in the uppermost soil layer, and reaching about 170 mg/kg in the common dandelion rhizosphere. Chemical extractions and thermal desorption experiments have indicated that most Hg is in the elemental free and matrix-bound fraction, with a possible minor amount (less than 4 wt%) of HgS and negligible methylated forms (0.1 wt%). The data suggest that soil processes could reduce Hg2+ to volatile Hg0. Mercury in groundwater, hosted in a shallow aquitard in the area, was below 0.2 µg/L. However, the presence of chloride in groundwater might result in the formation of Hg stable aqueous complexes, increasing Hg release from solids. Future water quality monitoring is hence recommended. The risk assessment highlighted that mercury in soil carries a risk of non-cancerous effects, in particular for children, posing the basis for management planning.
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13
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Al-Ansari MM. Biodetoxification mercury by using a marine bacterium Marinomonas sp. RS3 and its merA gene expression under mercury stress. ENVIRONMENTAL RESEARCH 2022; 205:112452. [PMID: 34856165 DOI: 10.1016/j.envres.2021.112452] [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: 09/25/2021] [Revised: 11/21/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
Mercury (Hg) pollution in water has been a problem for the ecosystem and human health, thus eco-friendly remediation methods are gaining traction around the world. In this study, a bacterial strain designated as RS3 isolated from the Red Sea (Saudi Arabia) has shown tolerance to more than 250 mg/L of Hg2+ on minimum inhibitory studies. The isolate RS3 was identified as Marinomonas sp., (Accession No: OK271312) using 16s rRNA sequencing. Tracing the growth curve for the RS3 showed that maximum growth attained at 72 h and only 10% reduction than the control medium for 50 mg/L HgCl2 supplemented seawater medium, which continued to reduce as 21% to 60 with the increment of HgCl2 from 100 to 350 mg/L. The Hg2+ removal potential of RS3 is observed to be 78% at 50 mg/L HgCl2/72 h, which is significantly altered with the addition of carbon source such as glucose (84.5%) > fructose (79.8%) > control (78%) > citrate (73.4%) > acetate (60.2%) > maltose (54.7%). Box-Behnken design (BBD) well proposed a model with R2 value of 0.8922, which predict a utmost Hg2+ removal of 89.5% by RS2 at favorable conditions (pH-7; NaC 1% and glucose 5%) at 72 h. Mercuric reductase enzyme encoded merA gene expression was found to be high in RS3 isolates cultivated in 100 mg/L of HgCl2 in comparison with other variables. Thus the seawater isolate Marinomonas sp. RS3 expressed a significant tolerance and removal potential towards the Hg2+, which would make it is a noteworthy applicant for effective mercury remediation practices.
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Affiliation(s)
- Mysoon M Al-Ansari
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
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14
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Ali S, Mansha M, Baig N, Khan SA. Recent Trends and Future Perspectives of Emergent Analytical Techniques for Mercury Sensing in Aquatic Environments. CHEM REC 2022; 22:e202100327. [PMID: 35253977 DOI: 10.1002/tcr.202100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/29/2022] [Accepted: 02/22/2022] [Indexed: 11/10/2022]
Abstract
Environmental emissions of mercury from industrial waste and natural sources, even in trace amounts, are toxic to organisms and ecosystems. However, industrial-scale mercury detection is limited by the high cost, low sensitivity/specificity, and poor selectivity of the available analytical tools. This review summarizes the key sensors for mercury detection in aqueous environments: colorimetric-, electrochemical-, fluorescence-, and surface-enhanced Raman spectroscopy-based sensors reported between 2014-2021. It then compares the performances of these sensors in the determination of inorganic mercury (Hg2+ ) and methyl mercury (CH3 Hg+ ) species in aqueous samples. Mercury sensors for aquatic applications still face serious challenges in terms of difficult deployment in remote areas and low robustness, reliability, and selectivity in harsh environments. We provide future perspectives on the selective detection of organomercury species, which are especially toxic and reactive in aquatic environments. This review is intended as a valuable resource for scientists in the field of mercury sensing.
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Affiliation(s)
- Shahid Ali
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Muhammad Mansha
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Safyan Akram Khan
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
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15
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Hamdan AM, Kirana KH, Hakim F, Iksan M, Bijaksana S, Mariyanto M, Ashari TM, Ngkoimani LO, Kurniawan H, Pratama A, Wahid MA. Magnetic susceptibilities of surface sediments from estuary rivers in volcanic regions. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:239. [PMID: 35235047 DOI: 10.1007/s10661-022-09891-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Estuaries have very complex mechanisms because they are influenced by seawater intrusion, which causes enrichment of contaminants in the maximum turbidity area. Magnetic susceptibility measurements have been used for monitoring a wide variety of environments. However, there have been few studies of the magnetic properties of surface sediments from estuaries in volcanic environments in the tropics. This study investigates the magnetic properties and their correlations with the geochemistry of surface sediments in estuaries in volcanic areas and was conducted in the Krueng Aceh River, Indonesia. Measurements consist of magnetic susceptibility measurements, chemical analysis, and mineralogical analysis. Measurements of magnetic susceptibilities were performed using a Bartington MS2 instrument with an MS2B sensor using frequencies of 460 and 46 kHz. X-ray fluorescence (XRF) and energy-dispersive spectroscopy (EDS) were used to identify elements in the sediments. Scanning electron microscopy (SEM) analysis was used to analyze sediment grains. X-ray diffraction (XRD) analysis was used to determine mineral contents. For the first time, χLF/χFD ratios were found to be an obvious parameter for identifying areas of sediment traps and metal enrichment in the estuary turbidity maxima (ETM) zone. The magnetic properties carried by volcanic rock minerals consist of pigeonite and enstatite. These two minerals have not been previously considered as carriers of sediments with magnetic properties when monitoring heavy metal enrichment in urban rivers. These results provide an extension of the use of magnetic susceptibility measurements in environmental studies, particularly in estuary river environments in volcanic areas such as the Krueng Aceh River, Indonesia.
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Affiliation(s)
- Abd Mujahid Hamdan
- Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry Banda Aceh, Jl. Syekh Abdurrauf No. 1, Banda Aceh, 23111, Indonesia.
| | - Kartika Hajar Kirana
- Department of Geophysics, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung Sumedang KM.21, Bandung, 45363, Indonesia
- Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesha No. 10, Bandung, 40132, Indonesia
| | - Fathul Hakim
- Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry Banda Aceh, Jl. Syekh Abdurrauf No. 1, Banda Aceh, 23111, Indonesia
| | - Muhammad Iksan
- Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry Banda Aceh, Jl. Syekh Abdurrauf No. 1, Banda Aceh, 23111, Indonesia
| | - Satria Bijaksana
- Department of Geophysical Engineering, Institut Teknologi Sepuluh Nopember, Jl. Raya ITS, Surabaya, 60111, Indonesia
| | - Mariyanto Mariyanto
- Department of Geophysical Engineering, Institut Teknologi Sepuluh Nopember, Jl. Raya ITS, Surabaya, 60111, Indonesia
| | - Teuku Muhammad Ashari
- Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry Banda Aceh, Jl. Syekh Abdurrauf No. 1, Banda Aceh, 23111, Indonesia
| | - La Ode Ngkoimani
- Department of Geophysics, Halu Oleo University, Indonesia, Kampus Hijau Bumi Tridharma, Kendari, 93232, Indonesia
| | - Hadi Kurniawan
- Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry Banda Aceh, Jl. Syekh Abdurrauf No. 1, Banda Aceh, 23111, Indonesia
| | - Aditya Pratama
- Research Center for Geotechnology, JL. Sangkuriang, Indonesian Institute of Sciences (LIPI), Kompleks LIPI, Bandung, 40135, Indonesia
| | - Mulyadi Abdul Wahid
- Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry Banda Aceh, Jl. Syekh Abdurrauf No. 1, Banda Aceh, 23111, Indonesia
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16
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Hrabarova E, Belkova M, Koszagova R, Nahalka J. Pull-Down Into Active Inclusion Bodies and Their Application in the Detection of (Poly)-Phosphates and Metal-Ions. Front Bioeng Biotechnol 2022; 10:833192. [PMID: 35299638 PMCID: PMC8921494 DOI: 10.3389/fbioe.2022.833192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Inclusion bodies are typically ignored as they are considered unwanted protein waste generated by prokaryotic host cells during recombinant protein production or harmful protein inclusions in human cell biology. However, these protein particles may have applications for in vivo immobilization in industrial biocatalysis or as cell-tolerable protein materials for the pharmaceuticals industry and clinical development. Thus, there is a need to in vivo “pull-down” (insolubilize) soluble enzymes and proteins into inclusion bodies. Accordingly, in this study, sequences from the short-chain polyphosphatase ygiF were used to design pull-down tags capable of detecting (poly)-phosphates and metal ions. These tags were compared with the entire CHAD domain from Escherichia coli ygiF and SACS2 CHAD from Saccharolobus solfataricus. The results demonstrated that highly soluble green fluorescent protein variants could be pulled down into the inclusion bodies and could have modified sensitivity to metals and di-/tri-inorganic phosphates.
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Affiliation(s)
- Eva Hrabarova
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Bratislava, Slovakia
- Institute of Chemistry, Centre of Excellence for White-green Biotechnology, Slovak Academy of Sciences, Nitra, Slovakia
| | - Martina Belkova
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Bratislava, Slovakia
- Institute of Chemistry, Centre of Excellence for White-green Biotechnology, Slovak Academy of Sciences, Nitra, Slovakia
| | - Romana Koszagova
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Bratislava, Slovakia
- Institute of Chemistry, Centre of Excellence for White-green Biotechnology, Slovak Academy of Sciences, Nitra, Slovakia
| | - Jozef Nahalka
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Bratislava, Slovakia
- Institute of Chemistry, Centre of Excellence for White-green Biotechnology, Slovak Academy of Sciences, Nitra, Slovakia
- *Correspondence: Jozef Nahalka,
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17
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Podar D, Maathuis FJM. The role of roots and rhizosphere in providing tolerance to toxic metals and metalloids. PLANT, CELL & ENVIRONMENT 2022; 45:719-736. [PMID: 34622470 DOI: 10.1111/pce.14188] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/23/2021] [Accepted: 08/28/2021] [Indexed: 06/13/2023]
Abstract
Human activity and natural processes have led to the widespread dissemination of metals and metalloids, many of which are toxic and have a negative impact on plant growth and development. Roots, as the first point of contact, are essential in endowing plants with tolerance to excess metal(loid) in the soil. The most important root processes that contribute to tolerance are: adaptation of transport processes that affect uptake efflux and long-distance transport of metal(loid)s; metal(loid) detoxification within root cells via conjugation to thiol rich compounds and subsequent sequestration in the vacuole; plasticity in root architecture; the presence of bacteria and fungi in the rhizosphere that impact on metal(loid) bioavailability; the role of root exudates. In this review, we provide details on these processes and assess their relevance on the detoxification of arsenic, cadmium, mercury and zinc in crops. Furthermore, we assess which of these strategies have been tested in field conditions and whether they are effective in terms of improving crop metal(loid) tolerance.
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Affiliation(s)
- Dorina Podar
- Department of Molecular Biology and Biotechnology, Faculty of Biology-Geology, Babeș-Bolyai University, Cluj, Romania
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18
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Identification and Characterization of Peruvian Native Bacterial Strains as Bioremediation of Hg-Polluted Water and Soils Due to Artisanal and Small-Scale Gold Mining in the Secocha Annex, Arequipa. SUSTAINABILITY 2022. [DOI: 10.3390/su14052669] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The water and soils pollution due to mercury emissions from mining industries represents a serious environmental problem and continuous risk to human health. Although many strategies have been designed for the recovery or elimination of this metal from environmental sources, microbial bioremediation has proven to be the most effective and environmentally friendly strategy and thus control heavy metal contamination. The main objective of this work, using native bacterial strains obtained from contaminated soils of the Peruvian region of Secocha, was to identify which of these strains would have growth capacity on mercury substrates to evaluate their adsorption behavior and mercury removal capacity. Through a DNA analysis (99.78% similarity) and atomic absorption spectrometry, the Gram-positive bacterium Zhihengliuella alba sp. T2.2 was identified as the strain with the highest mercury removal capacity from culture solutions with an initial mercury concentration of 162 mg·L−1. The removal capacity reached values close to 39.5% in a period of incubation time of 45 days, with maximum elimination efficiency in the first 48 h. These results are encouraging and show that this native strain may be the key to the bioremediation of water and soils contaminated with mercury.
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19
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Ullah S, Ahmad S, Guo X, Ullah S, Ullah S, Nabi G, Wanghe K. A review of the endocrine disrupting effects of micro and nano plastic and their associated chemicals in mammals. Front Endocrinol (Lausanne) 2022; 13:1084236. [PMID: 36726457 PMCID: PMC9885170 DOI: 10.3389/fendo.2022.1084236] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/05/2022] [Indexed: 01/18/2023] Open
Abstract
Over the years, the vaste expansion of plastic manufacturing has dramatically increased the environmental impact of microplastics [MPs] and nanoplastics [NPs], making them a threat to marine and terrestrial biota because they contain endocrine disrupting chemicals [EDCs] and other harmful compounds. MPs and NPs have deleteriouse impacts on mammalian endocrine components such as hypothalamus, pituitary, thyroid, adrenal, testes, and ovaries. MPs and NPs absorb and act as a transport medium for harmful chemicals such as bisphenols, phthalates, polybrominated diphenyl ether, polychlorinated biphenyl ether, organotin, perfluorinated compounds, dioxins, polycyclic aromatic hydrocarbons, organic contaminants, and heavy metals, which are commonly used as additives in plastic production. As the EDCs are not covalently bonded to plastics, they can easily leach into milk, water, and other liquids affecting the endocrine system of mammals upon exposure. The toxicity induced by MPs and NPs is size-dependent, as smaller particles have better absorption capacity and larger surface area, releasing more EDC and toxic chemicals. Various EDCs contained or carried by MPs and NPs share structural similarities with specific hormone receptors; hence they interfere with normal hormone receptors, altering the hormonal action of the endocrine glands. This review demonstrates size-dependent MPs' bioaccumulation, distribution, and translocation with potential hazards to the endocrine gland. We reviewed that MPs and NPs disrupt hypothalamic-pituitary axes, including the hypothalamic-pituitary-thyroid/adrenal/testicular/ovarian axis leading to oxidative stress, reproductive toxicity, neurotoxicity, cytotoxicity, developmental abnormalities, decreased sperm quality, and immunotoxicity. The direct consequences of MPs and NPs on the thyroid, testis, and ovaries are documented. Still, studies need to be carried out to identify the direct effects of MPs and NPs on the hypothalamus, pituitary, and adrenal glands.
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Affiliation(s)
- Sana Ullah
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Shahid Ahmad
- School of Ecology and Environment, Hainan University, Haikou, Hainan, China
| | - Xinle Guo
- Academy of Plateau Science and Sustainability, College of Life Sciences, Qinghai Normal University, Xining, China
| | - Saleem Ullah
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Sana Ullah
- Department of Zoology, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Ghulam Nabi
- Institute of Nature Conservation, Polish Academy of Sciences, Krakow, Poland
- *Correspondence: Ghulam Nabi, ; Kunyuan Wanghe,
| | - Kunyuan Wanghe
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Laboratory of Plateau Fish Evolutionary and Functional Genomics, Qinghai Key Laboratory of Animal Ecological Genomics, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, China
- *Correspondence: Ghulam Nabi, ; Kunyuan Wanghe,
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20
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Study of an adsorption method for trace mercury based on Bacillus subtilis. OPEN CHEM 2021. [DOI: 10.1515/chem-2021-0099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
In order to decrease the difficulty in trace mercury determination, an adsorption method for trace mercury based on Bacillus subtilis cells was proposed in this article. The adsorption process was characterized by optical microscopy and SEM. The adsorption mechanism was analyzed by IR. The adsorption performance was studied by measuring the concentration of supernate and calculating the adsorption efficiency. When adsorbing Hg2+, Bacillus subtilis cells gathered and their structure turned coarse. The IR results illustrated that functional groups bound with Hg for complexation during adsorption. Bacillus subtilis completed adsorption for trace Hg2+ in 15 min. The adsorption efficiency was maintained above 80% under low Hg2+ concentrations (<200 µg/L). The proposed study illustrates that Bacillus subtilis cells are highly efficient and easily obtained material for the adsorption of trace mercury, which shows potential to be further used in the pretreatment of trace Hg2+ detection.
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21
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Geotechnical and Environmental Assessment of Blast Furnace Slag for Engineering Applications. MATERIALS 2021; 14:ma14206029. [PMID: 34683619 PMCID: PMC8537200 DOI: 10.3390/ma14206029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/28/2021] [Accepted: 10/08/2021] [Indexed: 01/29/2023]
Abstract
The increasing demand for building materials in the road industry creates interest for a new source of high-quality aggregates. In order to conserve natural resources, more attention is focused on anthropogenic soils and industrial solid wastes. For the successful application of these types of soil, a series of geotechnical and environmental tests have to be conducted. A potential hazard in the reuse of wastes from thermal degradation in the construction industry, particularly in reinforced concrete (RC) construction, is the migration of heavy metals into the groundwater environment. In this article, a geotechnical assessment of blast furnace slag (BFS) properties is presented. We conducted a series of CBR, and oedometric tests to evaluate the feasibility of BFS application in earth construction. The oedometric test results show acceptable compression characteristics which are in the range of natural aggregates. The CBR shows that this material may be used as a pavement subbase. We also noticed the preconsolidation pressure phenomenon in both Proctor and vibro-compacted soil during the oedometric test. The compression index and recompression index value show that the compression characteristics are close to those of dense sand. Based on the results described in the article, blast furnace slag is a candidate for technological application and can become one of the elements of sustainable development by contributing to a reduction in the negative environmental impact of production and use of building materials.
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El-Ramady H, Abdalla N, Elbasiouny H, Elbehiry F, Elsakhawy T, Omara AED, Amer M, Bayoumi Y, Shalaby TA, Eid Y, Zia-Ur-Rehman M. Nano-biofortification of different crops to immune against COVID-19: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 222:112500. [PMID: 34274837 PMCID: PMC8270734 DOI: 10.1016/j.ecoenv.2021.112500] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/30/2021] [Accepted: 07/05/2021] [Indexed: 05/04/2023]
Abstract
Human health and its improvement are the main target of several studies related to medical, agricultural and industrial sciences. The human health is the primary conclusion of many studies. The improving of human health may include supplying the people with enough and safe nutrients against malnutrition to fight against multiple diseases like COVID-19. Biofortification is a process by which the edible plants can be enriched with essential nutrients for human health against malnutrition. After the great success of biofortification approach in the human struggle against malnutrition, a new biotechnological tool in enriching the crops with essential nutrients in the form of nanoparticles to supplement human diet with balanced diet is called nano-biofortification. Nano biofortification can be achieved by applying the nano particles of essential nutrients (e.g., Cu, Fe, Se and Zn) foliar or their nano-fertilizers in soils or waters. Not all essential nutrients for human nutrition can be biofortified in the nano-form using all edible plants but there are several obstacles prevent this approach. These stumbling blocks are increased due to COVID-19 and its problems including the global trade, global breakdown between countries, and global crisis of food production. The main target of this review was to evaluate the nano-biofortification process and its using against malnutrition as a new approach in the era of COVID-19. This review also opens many questions, which are needed to be answered like is nano-biofortification a promising solution against malnutrition? Is COVID-19 will increase the global crisis of malnutrition? What is the best method of applied nano-nutrients to achieve nano-biofortification? What are the challenges of nano-biofortification during and post of the COVID-19?
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Affiliation(s)
- Hassan El-Ramady
- Soil and Water Department, Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, Egypt.
| | - Neama Abdalla
- Plant Biotechnology Department, Genetic Engineering and Biotechnology Division, National Research Center, 12622 Cairo, Egypt.
| | - Heba Elbasiouny
- Department of Environmental and Biological Sciences, Home Economy faculty, Al-Azhar University, 31732 Tanta, Egypt.
| | - Fathy Elbehiry
- Central Laboratory of Environmental Studies, Kafrelsheikh University, 33516 Kafr El-Sheikh, Egypt.
| | - Tamer Elsakhawy
- Agriculture Microbiology Department, Soil, Water and Environment Research Institute (SWERI), Sakha Agricultural Research Station, Agriculture Research Center (ARC), 33717 Kafr El-Sheikh, Egypt.
| | - Alaa El-Dein Omara
- Agriculture Microbiology Department, Soil, Water and Environment Research Institute (SWERI), Sakha Agricultural Research Station, Agriculture Research Center (ARC), 33717 Kafr El-Sheikh, Egypt.
| | - Megahed Amer
- Soils Improvement Department, Soils, Water and Environment Research Institute (SWERI), Sakha Station, Agricultural Research Center (ARC), 33717 Kafr El-Sheikh, Egypt.
| | - Yousry Bayoumi
- Horticulture Department, Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, Egypt.
| | - Tarek A Shalaby
- Horticulture Department, Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, Egypt.
| | - Yahya Eid
- Poultry Department, Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, Egypt.
| | - Muhammad Zia-Ur-Rehman
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan.
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23
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Wang Q, Dang Q, Liu C, Wang X, Li B, Xu Q, Liu H, Ji X, Zhang B, Cha D. Novel amidinothiourea-modified chitosan microparticles for selective removal of Hg(II) in solution. Carbohydr Polym 2021; 269:118273. [PMID: 34294305 DOI: 10.1016/j.carbpol.2021.118273] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/22/2021] [Accepted: 05/27/2021] [Indexed: 12/15/2022]
Abstract
Glutaraldehyde-crosslinked chitosan microparticles (CGP) prepared via the inversed-phase emulsification were successively modified by epichlorohydrin (ECH) and amidinothiourea (AT) as novel adsorbent (CGPET) for selective removal of Hg(II) in solution. FTIR, EA, XPS, SEM-EDX, TG, DTG, and XRD results indicated that CGPET had ample -NH2 and CS, relative rough surface, mean diameter of ~40 μm, great thermal stability, and crystalline degree of 2.4%, beneficial to the uptake of Hg(II). The optimum parameters (pH 5, dosage 1 g/L, contact time 4 h, and initial concentration 150 mg/L) were acquired via batches of adsorption experiments. Adsorption behavior was well described by the Liu isothermal and pseudo-second-order kinetics models, and the maximum adsorption capacity was 322.51 mg/g, surpassing many reported adsorbents. Regeneration and coexisting-ion tests demonstrated that CGPET had outstanding reusability (Rr > 86.89% at the fifth cycle) and selectivity (Rs > 93%). Besides, its potential adsorption sites and mechanisms were proposed.
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Affiliation(s)
- Qiongqiong Wang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Qifeng Dang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Chengsheng Liu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China.
| | - Xiaoyu Wang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Boyuan Li
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Qing Xu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Hao Liu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Xuzhou Ji
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, PR China
| | - Bonian Zhang
- Qingdao Aorun Biotechnology Co., Ltd., Room 602, Century Mansion, 39 Donghaixi Road, Qingdao 266071, PR China
| | - Dongsu Cha
- The Graduate School of Biotechnology, Korea University, Seoul 136-701, South Korea
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24
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Polyaniline/Nanomaterial Composites for the Removal of Heavy Metals by Adsorption: A Review. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5090233] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Heavy metals represent one of the most important kinds of pollutants, causing serious threats to the ecological balance. Thus, their removal from aqueous solution is a major environmental concern worldwide. The process of adsorption—being very simple, economical, and effective—is widely applied for the decontamination of wastewaters from heavy metals. In this process, the adsorbent is the key factor affecting the performance; for this reason, significant efforts have been made to develop highly efficient and selective adsorbents with outstanding properties. This paper presents a detailed overview of the research on different methods of synthesis of nanocomposite materials based on the polymer polyaniline combined with nanomaterials, along with the influence of the synthesis method on their size, morphology, and properties. In addition, the study evaluates the adsorption efficiency of various developed nanocomposites for the adsorption of heavy metals from aqueous solution. From an economical and environmental point of view, the regeneration studies of the nanocomposites are also reported.
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Alotaibi BS, Khan M, Shamim S. Unraveling the Underlying Heavy Metal Detoxification Mechanisms of Bacillus Species. Microorganisms 2021; 9:1628. [PMID: 34442707 PMCID: PMC8402239 DOI: 10.3390/microorganisms9081628] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/08/2021] [Accepted: 07/13/2021] [Indexed: 12/26/2022] Open
Abstract
The rise of anthropogenic activities has resulted in the increasing release of various contaminants into the environment, jeopardizing fragile ecosystems in the process. Heavy metals are one of the major pollutants that contribute to the escalating problem of environmental pollution, being primarily introduced in sensitive ecological habitats through industrial effluents, wastewater, as well as sewage of various industries. Where heavy metals like zinc, copper, manganese, and nickel serve key roles in regulating different biological processes in living systems, many heavy metals can be toxic even at low concentrations, such as mercury, arsenic, cadmium, chromium, and lead, and can accumulate in intricate food chains resulting in health concerns. Over the years, many physical and chemical methods of heavy metal removal have essentially been investigated, but their disadvantages like the generation of chemical waste, complex downstream processing, and the uneconomical cost of both methods, have rendered them inefficient,. Since then, microbial bioremediation, particularly the use of bacteria, has gained attention due to the feasibility and efficiency of using them in removing heavy metals from contaminated environments. Bacteria have several methods of processing heavy metals through general resistance mechanisms, biosorption, adsorption, and efflux mechanisms. Bacillus spp. are model Gram-positive bacteria that have been studied extensively for their biosorption abilities and molecular mechanisms that enable their survival as well as their ability to remove and detoxify heavy metals. This review aims to highlight the molecular methods of Bacillus spp. in removing various heavy metals ions from contaminated environments.
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Affiliation(s)
- Badriyah Shadid Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Maryam Khan
- Institute of Molecular Biology and Biotechnology (IMBB), Defence Road Campus, The University of Lahore, Lahore 55150, Pakistan;
| | - Saba Shamim
- Institute of Molecular Biology and Biotechnology (IMBB), Defence Road Campus, The University of Lahore, Lahore 55150, Pakistan;
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Maluckov BS. Biorecovery of nanogold and nanogold compounds from gold-containing ores and industrial wastes. Appl Microbiol Biotechnol 2021; 105:3471-3484. [PMID: 33880600 DOI: 10.1007/s00253-021-11277-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 02/20/2021] [Accepted: 04/06/2021] [Indexed: 11/25/2022]
Abstract
In nature, microorganisms developed at various places and adapted to the various weather and geological conditions. Microorganisms participate in geological transformations leading to the dissolution of some minerals and conversion to others. While some microorganisms with their metabolic activity increase the mobility of metals, others cause precipitation of metals and the formation of new minerals. These biogeochemical interactions found practical application in the recovery of metals. In the article, the proposals for improvement of existing engineering commercial processes for recovery of metals are given which can enable the formation of nanogold and nanogold compounds.Key points• Amino acids in pretreatment can increase the dissolution of the layer around the gold.• Amino acids in the complexing stage can increase gold leaching.• After the complexing stage, the bionanosynthesis of gold and its compounds is possible.
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Affiliation(s)
- Biljana S Maluckov
- Technical Faculty in Bor, University of Belgrade, Vojske Jugoslavije 12, Bor, 19210, Serbia.
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Comparative Study of Cytotoxicity, DNA Damage and Oxidative Stress Induced by Heavy Metals Cd(II), Hg(II) and Cr(III) in Yeast. Curr Microbiol 2021; 78:1856-1863. [PMID: 33770215 DOI: 10.1007/s00284-021-02454-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/10/2021] [Indexed: 01/09/2023]
Abstract
Wide range of applications of heavy metals and improperly discarded their castoffs possess serious threats to environment and human health. In this study, cytotoxicity, DNA damage and oxidative stress induced by Cd(II), Hg(II) and Cr(III) were comparatively studied in yeast Saccharomyces cerevisiae. Cd(II), Hg(II), and Cr(III) all produced strong cytotoxicity resulting in growth inhibition and cell mortality to varying degrees (Hg(II) > Cd(II) > Cr(III)). Hg(II) produced more oxidative stress. Cr(III) caused more serious DNA damage in vitro. Cd(II) also caused both obvious DNA damage and oxidative stress at higher concentration, but not as efficiently as Cd(II) and Hg(II). A further null mutation sensitivity assay showed that the relative sensitivity of rad1∆ to the metals was Cr(III) > Cd(II) > Hg(II), and that of trx1∆ to the metals was Hg(II) > Cd(II) > Cr(III). These data provide a clear evidence that the Cr(III) can cause significant DNA damage and potential genotoxicity; Hg(II) can strongly inhibit SOD activity, produce lipid peroxidation and cause serious membrane injury, suggesting these heavy metals can cause different toxic effects in different ways.
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Phytoremediation and Microorganisms-Assisted Phytoremediation of Mercury-Contaminated Soils: Challenges and Perspectives. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052435. [PMID: 33801363 PMCID: PMC7967564 DOI: 10.3390/ijerph18052435] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/18/2021] [Accepted: 02/24/2021] [Indexed: 01/01/2023]
Abstract
Mercury (Hg) pollution is a global threat to human and environmental health because of its toxicity, mobility and long-term persistence. Although costly engineering-based technologies can be used to treat heavily Hg-contaminated areas, they are not suitable for decontaminating agricultural or extensively-polluted soils. Emerging phyto- and bioremediation strategies for decontaminating Hg-polluted soils generally involve low investment, simple operation, and in situ application, and they are less destructive for the ecosystem. Current understanding of the uptake, translocation and sequestration of Hg in plants is reviewed to highlight new avenues for exploration in phytoremediation research, and different phytoremediation strategies (phytostabilization, phytoextraction and phytovolatilization) are discussed. Research aimed at identifying suitable plant species and associated-microorganisms for use in phytoremediation of Hg-contaminated soils is also surveyed. Investigation into the potential use of transgenic plants in Hg-phytoremediation is described. Recent research on exploiting the beneficial interactions between plants and microorganisms (bacteria and fungi) that are Hg-resistant and secrete plant growth promoting compounds is reviewed. We highlight areas where more research is required into the effective use of phytoremediation on Hg-contaminated sites, and conclude that the approaches it offers provide considerable potential for the future.
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Wang L, Chen H, Zhang N, Liu X, Zheng K. Reaction-based two novel fluorescent probes for Hg2+ detection using benzothiazole derivatives via ESIPT mechanism in aqueous solution and serum. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152735] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Kraithong S, Chailek N, Sirirak J, Suwatpipat K, Wanichacheva N, Swanglap P. Improving sensitivity of a new Hg2+-Selective fluorescent sensor by silver nanoparticles via plasmonic enhancement. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Xu WL, Yang JF, Ran MQ, Zeng X, Redshaw C, Tao Z. A flexible tripod fluorescent probe for multiple cations detection and its application in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118614. [PMID: 32604048 DOI: 10.1016/j.saa.2020.118614] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
To the flexible tripod platform tren (tris(2-aminoethyl)amine), a Rhodamine and two naphthalene fluorophores were introduced. The resulting fluorescence probe named TRN was fully characterized and employed in cell imaging. Probe TRN exhibited high selectivity and excellent sensitivity for the simultaneous fluorescence detection of Zn2+/Hg2+/Al3+/Cu2+. The significant changes in the fluorescence color make naked-eye detection possible. Furthermore, fluorescence imaging experiments of Zn2+/Hg2+/Al3+/Cu2+ in living PC3 cells demonstrated its value for practical applications in biological systems.
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Affiliation(s)
- Wan-Li Xu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Jun-Feng Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Mao-Qian Ran
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Xi Zeng
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China.
| | - Carl Redshaw
- Department of Chemistry and Biochemistry, University of Hull, Hull HU6 7RX, UK
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
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