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Gomes AFR, Almeida MC, Sousa E, Resende DISP. Siderophores and metallophores: Metal complexation weapons to fight environmental pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 932:173044. [PMID: 38723971 DOI: 10.1016/j.scitotenv.2024.173044] [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: 01/29/2024] [Revised: 05/02/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024]
Abstract
Siderophores are small molecules of organic nature, released by bacteria to chelate iron from the surrounding environment and subsequently incorporate it into the cytoplasm. In addition to iron, these secondary metabolites can complex with a wide variety of metals, which is why they are commonly studied in the environment. Heavy metals can be very toxic when present in large amounts on the planet, affecting public health and all living organisms. The pollution caused by these toxic metals is increasing, and therefore it is urgent to find practical, sustainable, and economical solutions for remediation. One of the strategies is siderophore-assisted bioremediation, an innovative and advantageous alternative for various environmental applications. This research highlights the various uses of siderophores and metallophores in the environment, underscoring their significance to ecosystems. The study delves into the utilization of siderophores and metallophores in both marine and terrestrial settings (e.g. bioremediation, biocontrol of pathogens, and plant growth promotion), such as bioremediation, biocontrol of pathogens, and plant growth promotion, providing context for the different instances outlined in the existing literature and highlighting their relevance in each field. The study delves into the structures and types of siderophores focusing on their singular characteristics for each application and methodologies used. Focusing on recent developments over the last two decades, the opportunities and challenges associated with siderophores and metallophores applications in the environment were mapped to arm researchers in the fight against environmental pollution.
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Affiliation(s)
- Ana F R Gomes
- LQOF - Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, FFUP - Faculdade de Farmácia, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Mariana C Almeida
- LQOF - Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, FFUP - Faculdade de Farmácia, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Emília Sousa
- LQOF - Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, FFUP - Faculdade de Farmácia, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Diana I S P Resende
- LQOF - Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, FFUP - Faculdade de Farmácia, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal.
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Gomes AF, Sousa E, Resende DISP. A Practical Toolkit for the Detection, Isolation, Quantification, and Characterization of Siderophores and Metallophores in Microorganisms. ACS OMEGA 2024; 9:26863-26877. [PMID: 38947835 PMCID: PMC11209696 DOI: 10.1021/acsomega.4c03042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 07/02/2024]
Abstract
Siderophores are well-recognized low-molecular-weight compounds produced by numerous microorganisms to acquire iron from the surrounding environments. These secondary metabolites can form complexes with other metals besides iron, forming soluble metallophores; because of that, they are widely investigated in either the medicinal or environmental field. One of the bottlenecks of siderophore research is related to the identification of new siderophores from microbial sources. Herein we have compiled a comprehensive range of standard and updated methodologies that have been developed over the past few years to provide a comprehensive toolbox in this area to current researchers.
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Affiliation(s)
- Ana F.
R. Gomes
- LQOF
- Laboratório de Química Orgânica e Farmacêutica,
Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
- CIIMAR-
Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Emília Sousa
- LQOF
- Laboratório de Química Orgânica e Farmacêutica,
Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
- CIIMAR-
Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Diana I. S. P. Resende
- LQOF
- Laboratório de Química Orgânica e Farmacêutica,
Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
- CIIMAR-
Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
- ICBAS
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
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Yang W, Zhang Z, Liu K, Wang W, Peng W, Ma H, Wang Q, Shi X, Sun H, Duan X. Electrospun Fe 3O 4-chitosan/polyvinyl alcohol nanofibrous film for improved capture and elimination of foodborne pathogens. Int J Biol Macromol 2023; 253:126692. [PMID: 37673157 DOI: 10.1016/j.ijbiomac.2023.126692] [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: 03/14/2023] [Revised: 08/14/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
This study developed a new "capture and killing" antibacterial approach for efficient elimination of foodborne pathogens. Fe3O4-Chitosan (CS)/polyvinyl alcohol (PVA) nanofibrous films with improved antibacterial and mechanical properties were fabricated by a simple, environmentally friendly, and cost-effective electrospinning technique. The relationship between the physical properties (viscosity, surface tension, and conductivity) and spinnability of CS/PVA as fiber forming matrix was explored. Electrospun Fe3O4-CS/PVA films (0.03-0.12 mm) with smooth and bead-free nanofibrous structures (145-169 nm) were successfully obtained. Compared with the film electrospun from neat CS/PVA, incorporating Fe3O4 nanoparticles (NPs) (1.25-5 wt%) in CS/PVA nanofibrous film promoted bacterial attachment and increased the final inactivated efficiency, showing a difference with Fe3O4 loading and bacterial strain, which had the highest value against Escherichia coli (E. coli) and Staphyloccus aureus (S. aureus) being 90 % and 66.30 %, respectively. The tensile strength and elongation at break of Fe3O4-CS/PVA films enhanced by 46-192 % and 92-141 %, respectively. Results of the cytotoxicity test indicated that the resulting films had high biocompatibility. These promising findings provide a novel strategy for effective foodborne pathogens elimination, which could apply to sterilizing and food packaging to extend the shelf life of liquid food.
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Affiliation(s)
- Weiqiao Yang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Zhihang Zhang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China; College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Kuanbo Liu
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Wenjuan Wang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Wenting Peng
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Hang Ma
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Qian Wang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Xianai Shi
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Hui Sun
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Xiaoliang Duan
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China.
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Venkateswaran P, Vasudevan S, David H, Shaktivel A, Shanmugam K, Neelakantan P, Solomon AP. Revisiting ESKAPE Pathogens: virulence, resistance, and combating strategies focusing on quorum sensing. Front Cell Infect Microbiol 2023; 13:1159798. [PMID: 37457962 PMCID: PMC10339816 DOI: 10.3389/fcimb.2023.1159798] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 06/08/2023] [Indexed: 07/18/2023] Open
Abstract
The human-bacterial association is long-known and well-established in terms of both augmentations of human health and attenuation. However, the growing incidents of nosocomial infections caused by the ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter sp.) call for a much deeper understanding of these organisms. Adopting a holistic approach that includes the science of infection and the recent advancements in preventing and treating infections is imperative in designing novel intervention strategies against ESKAPE pathogens. In this regard, this review captures the ingenious strategies commissioned by these master players, which are teamed up against the defenses of the human team, that are equally, if not more, versatile and potent through an analogy. We have taken a basketball match as our analogy, dividing the human and bacterial species into two teams playing with the ball of health. Through this analogy, we make the concept of infectious biology more accessible.
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Affiliation(s)
- Parvathy Venkateswaran
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Sahana Vasudevan
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Helma David
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Adityan Shaktivel
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Karthik Shanmugam
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Prasanna Neelakantan
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Adline Princy Solomon
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
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Philipp Egbers H, Zurhelle C, Boris Koch P, Harder T, Tebben J. Selective purification of catecholate, hydroxamate and α–hydroxycarboxylate siderophores with Titanium Dioxide Affinity Chromatography. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Laisney J, Chevallet M, Fauquant C, Sageot C, Moreau Y, Predoi D, Herlin-Boime N, Lebrun C, Michaud-Soret I. Ligand-Promoted Surface Solubilization of TiO 2 Nanoparticles by the Enterobactin Siderophore in Biological Medium. Biomolecules 2022; 12:1516. [PMID: 36291725 PMCID: PMC9599204 DOI: 10.3390/biom12101516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 03/08/2024] Open
Abstract
Titanium dioxide nanoparticles (TiO2-NPs) are increasingly used in consumer products for their particular properties. Even though TiO2 is considered chemically stable and insoluble, studying their behavior in biological environments is of great importance to figure their potential dissolution and transformation. The interaction between TiO2-NPs with different sizes and crystallographic forms (anatase and rutile) and the strong chelating enterobactin (ent) siderophore was investigated to look at a possible dissolution. For the first time, direct evidence of anatase TiO2-NP surface dissolution or solubilization (i.e., the removal of Ti atoms located at the surface) in a biological medium by this siderophore was shown and the progressive formation of a hexacoordinated titanium-enterobactin (Ti-ent) complex observed. This complex was characterized by UV-visible and Fourier transform infrared (FTIR) spectroscopy (both supported by Density Functional Theory calculations) as well as electrospray ionization mass spectrometry (ESI-MS) and X-ray photoelectron spectroscopy (XPS). A maximum of ca. 6.3% of Ti surface atoms were found to be solubilized after 24 h of incubation, releasing Ti-ent complexes in the micromolar range that could then be taken up by bacteria in an iron-depleted medium. From a health and environmental point of view, the effects associated to the solubilization of the E171 TiO2 food additive in the presence of enterobactin and the entrance of the Ti-enterobactin complex in bacteria were questioned.
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Affiliation(s)
- Jérôme Laisney
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | | | - Caroline Fauquant
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | - Camille Sageot
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | - Yohann Moreau
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | - Daniela Predoi
- National Institute of Materials Physics, Atomistilor 105 bis, 077125 Magurele, Romania
| | | | - Colette Lebrun
- Université Grenoble Alpes, IRIG-SyMMES, CEA, CNRS, CEA-Grenoble, 38000 Grenoble, France
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7
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Nong W, Wu J, Ghiladi RA, Guan Y. The structural appeal of metal–organic frameworks in antimicrobial applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214007] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Egbers PH, Harder T, Koch BP, Tebben J. Siderophore purification with titanium dioxide nanoparticle solid phase extraction. Analyst 2020; 145:7303-7311. [PMID: 32901634 DOI: 10.1039/d0an00949k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Siderophores are metal chelators produced by microorganisms to facilitate binding and uptake of iron. The isolation and characterization of siderophores are impeded by typically low siderophore yields and the complexity of siderophore-containing extracts generated with traditional purification methods. We investigated titanium dioxide nanoparticle solid-phase extraction (TiO2 NP SPE) as a technique to selectively concentrate and purify siderophores from complex matrices for subsequent LC-MS detection and identification. TiO2 NP SPE showed a high binding capacity (15.7 ± 0.2 μmol mg-1 TiO2) for the model siderophore desferrioxamine B (DFOB) and proved robust to pH changes and the presence of EDTA. These are significant advances in comparison to immobilized metal affinity chromatography (IMAC). The TiO2 NP SPE was highly selective and recovered 77.6 ± 6.2% of DFOB spiked to a compositionally complex bacterial culture supernatant. The simple clean-up procedure removed the majority of contaminants and allowed direct detection of siderophores from the LC-MS base peak chromatogram. The 'untargeted' purification and analysis of an untreated supernatant of iron-deprived bacterial culture allowed for the direct identification of two known and three novel ferrioxamines. Thus, TiO2 NP SPE in combination with LC-MS offers great potential as a discovery platform for the purification and subsequent quantification or identification of novel siderophores of microbial origin.
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Affiliation(s)
- Philipp H Egbers
- University of Bremen, Faculty of Biology and Chemistry, Leobener Straße 6, 28359 Bremen, Germany
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9
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Reitz ZL, Butler A. Precursor-directed biosynthesis of catechol compounds in Acinetobacter bouvetii DSM 14964. Chem Commun (Camb) 2020; 56:12222-12225. [PMID: 32926028 DOI: 10.1039/d0cc04171h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Genome mining for VibH homologs reveals several species of Acinetobacter with a gene cluster that putatively encodes the biosynthesis of catechol siderophores with an amine core. A. bouvetii DSM 14964 produces three novel biscatechol siderophores: propanochelin (1), butanochelin (2), and pentanochelin (3). This strain has a relaxed specificity for the amine substrate, allowing for the biosynthesis of a variety of non-natural siderophore analogs by precursor directed biosynthesis. Of potential synthetic utility, A. bouvetii DSM 14964 condenses 2,3-dihydroxybenzoic acid (2,3-DHB) to allylamine and propargylamine, producing catecholic compounds which bind iron(iii) and may be further modified via thiol-ene or azide-alkyne click chemistry.
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Affiliation(s)
- Zachary L Reitz
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA.
| | - Alison Butler
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA.
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Boiteau RM, Kukkadapu R, Cliff JB, Smallwood CR, Kovarik L, Wirth MG, Engelhard MH, Varga T, Dohnalkova A, Perea DE, Wietsma T, Moran JJ, Hofmockel KS. Calcareous organic matter coatings sequester siderophores in alkaline soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:138250. [PMID: 32303367 DOI: 10.1016/j.scitotenv.2020.138250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/17/2020] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
Although most studies of organic matter (OM) stabilization in soils have focused on adsorption to aluminosilicate and iron-oxide minerals due to their strong interactions with organic nucleophiles, stabilization within alkaline soils has been empirically correlated with exchangeable Ca. Yet the extent of competing processes within natural soils remains unclear because of inadequate characterization of soil mineralogy and OM distribution within the soil in relation to minerals, particularly in C poor alkaline soils. In this study, we employed bulk and surface-sensitive spectroscopic methods including X-ray diffraction, 57Fe-Mössbauer, and X-ray photoemission spectroscopy (XPS), and transmission electron microscopy (TEM) methods to investigate the minerology and soil organic C and N distribution on individual fine particles within an alkaline soil. Microscopy and XPS analyses demonstrated preferential sorption of Ca-containing OM onto surfaces of Fe-oxides and calcite. This result was unexpected given that the bulk combined amounts of quartz and Fe-containing feldspars of the soil constitute ~90% of total minerals and the surface atomic composition was largely Fe and Al (>10% combined) compared to Ca (4.2%). Soil sorption experiments were conducted with two siderophores, pyoverdine and enterobactin, to evaluate the adsorption of organic molecules with functional groups that strongly and preferentially bind Fe. A greater fraction of pyoverdine was adsorbed compared to enterobactin, which is smaller, less polar, and has a lower aqueous solubility. Using NanoSIMS to map the distribution of isotopically-labeled siderophores, we observed correlations with Ca and Fe, along with strong isotopic dilution with native C, indicating associations with OM coatings rather than with bare mineral surfaces. We propose a mechanism of adsorption by which organics aggregate within alkaline soils via cation bridging, favoring the stabilization of larger molecules with a greater number of nucleophilic functional groups.
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Affiliation(s)
- Rene M Boiteau
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America; College of Earth, Ocean, Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, United States of America.
| | - Ravi Kukkadapu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America.
| | - John B Cliff
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Chuck R Smallwood
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America; Bioscience Division, Department of Molecular and Microbiology, Sandia National Laboratories, Albuquerque, NM, 87185, United States of America
| | - Libor Kovarik
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Mark G Wirth
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Mark H Engelhard
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Tamas Varga
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Alice Dohnalkova
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Daniel E Perea
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Thomas Wietsma
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - James J Moran
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | - Kirsten S Hofmockel
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America; Ecology, Evolution and Organismal Biology Department, Iowa State University, Ames, IA 50010, United States of America
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Gallo AD, Zierden MR, Profitt LA, Jones KE, Bonafide CP, Valentine AM. TiO 2 exposure alters transition metal ion quota in Rhodococcus ruber GIN-1. Metallomics 2020; 12:8-11. [PMID: 31913381 DOI: 10.1039/c9mt00305c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After exposure to micron-sized TiO2 particles, anatase and/or rutile, Rhodococcus ruber GIN-1 accumulates an increased concentration (2.2 ± 0.2 mg kg-1) of mobilized Ti into its biomass with concomitant decreases in cellular biometals Fe, Zn, and possibly Mn, while levels of Cu and Al are unaffected.
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12
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Årstøl E, Hohmann-Marriott MF. Cyanobacterial Siderophores-Physiology, Structure, Biosynthesis, and Applications. Mar Drugs 2019; 17:E281. [PMID: 31083354 PMCID: PMC6562677 DOI: 10.3390/md17050281] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/06/2019] [Accepted: 05/07/2019] [Indexed: 11/16/2022] Open
Abstract
Siderophores are low-molecular-weight metal chelators that function in microbial iron uptake. As iron limits primary productivity in many environments, siderophores are of great ecological importance. Additionally, their metal binding properties have attracted interest for uses in medicine and bioremediation. Here, we review the current state of knowledge concerning the siderophores produced by cyanobacteria. We give an overview of all cyanobacterial species with known siderophore production, finding siderophores produced in all but the most basal clades, and in a wide variety of environments. We explore what is known about the structure, biosynthesis, and cycling of the cyanobacterial siderophores that have been characterized: Synechobactin, schizokinen and anachelin. We also highlight alternative siderophore functionality and technological potential, finding allelopathic effects on competing phytoplankton and likely roles in limiting heavy-metal toxicity. Methodological improvements in siderophore characterization and detection are briefly described. Since most known cyanobacterial siderophores have not been structurally characterized, the application of mass spectrometry techniques will likely reveal a breadth of variation within these important molecules.
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Affiliation(s)
- Erland Årstøl
- Department of Biotechnology, PhotoSynLab, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Martin F Hohmann-Marriott
- Department of Biotechnology, PhotoSynLab, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
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Microbiological and Cellular Evaluation of a Fluorine-Phosphorus-Doped Titanium Alloy, a Novel Antibacterial and Osteostimulatory Biomaterial with Potential Applications in Orthopedic Surgery. Appl Environ Microbiol 2019; 85:AEM.02271-18. [PMID: 30367003 DOI: 10.1128/aem.02271-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 10/09/2018] [Indexed: 02/08/2023] Open
Abstract
Joint prosthesis failure is mainly related to aseptic loosening and prosthetic joint infections, both of which are associated with high morbidity and substantial costs for patients and health systems. The development of a biomaterial that is capable of stimulating bone growth while minimizing bacterial adhesion would reduce the incidence of prosthetic failure. We report antibacterial and osteostimulatory effects in a novel fluorine-phosphorus (F-P)-doped TiO2 oxide film grown on Ti-6Al-4V alloy with a nanostructure of bottle-shaped nanotubes (bNT) using five bacterial species (Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Pseudomonas aeruginosa, and Stenotrophomonas maltophilia) and MCT3T3-E1 osteoblastic cells. The interaction between the bacteria and bNT Ti-6Al-4V was complex, as the adhesion of four bacterial species decreased (two staphylococcus species, E. coli, and S. maltophilia), and the viability of staphylococci and S. maltophilia also decreased because of the aluminum (Al) released by bNT Ti-6Al-4V. This released Al can be recruited by the bacteria through siderophores and was retained only by the Gram-negative bacteria tested. P. aeruginosa showed higher adhesion on bNT Ti-6Al-4V than on chemically polished (CP) samples of Ti-6Al-4V alloy and an ability to mobilize Al from bNT Ti-6Al-4V. The cell adhesion and proliferation of MCT3T3-E1 osteoblastic cells significantly increased at 48 and 168 h, as did the matrix mineralization of these cells and the gene expression levels of three of the most important markers related to bone differentiation. According to our results, the bNT Ti-6Al-4V alloy could have clinical application, preventing infection and stimulating bone growth and thus preventing the two main causes of joint prosthesis failure.IMPORTANCE This work evaluates F-P-doped bNT Ti-6Al-4V from microbiological and cellular approaches. The bacterial results highlight that the antibacterial ability of bNT Ti-6Al-4V is the result of a combination of antiadhesive and bactericidal effects exerted by Al released from the alloy. The cell results highlight that F-P bNT Ti-6Al-4V alloy increases osseointegration due to modification of the chemical composition of the alloy resulting from P incorporation and not due to the nanostructure, as reported previously. A key finding was the detection of Al release from inside the bNT Ti-6Al-4V nanostructures, a result of the nanostructure growth during the anodizing process that is in part responsible for its bactericidal effect.
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14
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Sonawane JM, Ghosh PC, Adeloju SB. Electrokinetic behaviour of conducting polymer modified stainless steel anodes during the enrichment phase in microbial fuel cells. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.07.077] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Siderophores and mussel foot proteins: the role of catechol, cations, and metal coordination in surface adhesion. J Biol Inorg Chem 2017; 22:739-749. [DOI: 10.1007/s00775-017-1451-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 03/22/2017] [Indexed: 12/27/2022]
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16
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Claes B, Boudewijns T, Muchez L, Hooyberghs G, Van der Eycken EV, Vanderleyden J, Steenackers HP, De Vos DE. Smart Metal-Organic Framework Coatings: Triggered Antibiofilm Compound Release. ACS APPLIED MATERIALS & INTERFACES 2017; 9:4440-4449. [PMID: 28081368 DOI: 10.1021/acsami.6b14152] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Metal-organic frameworks (MOFs) have a large potential for delivery of active molecules. Here, a MOF coating is investigated as a smart host matrix for triggered release of antibiofilm compounds. In addition to a coating consisting of the regular Fe-terephthalate MIL-88B(Fe), a new hydrophobic MIL-88B(Fe) coating is synthesized in hydrothermal conditions using palmitic acid as a lattice terminating group. These porous materials are used as a host matrix for the antibiofilm compound 5-(4-chlorophenyl)-N-(2-isobutyl)-2-aminoimidazole, which has a specific biofilm-inhibiting effect at concentrations at which no activity against planktonic cells is detected. The stability of MIL-88B(Fe) in distilled water and tryptic soy broth medium is investigated, together with the ability of iron(III) chelators to serve as a trigger for controlled decomposition of MIL-88B(Fe) by metal complexation. Organic iron chelators are used to mimic the iron chelating function of siderophores, which are specific molecules excreted by biofilm-forming bacteria. Trisodium citrate is able to chelate metal ions from the junctions of the framework. By sequestration of these metal ions, the host matrix is partially degraded, resulting in an antibiofilm compound release. Finally, the antibiofilm properties against Salmonella Typhimurium are validated by monitoring biofilm growth on MOF layers either loaded or not with aminoimidazole. A strong proof-of-concept is shown for efficient inhibition of biofilm growth through triggered antibiofilm compound release.
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Affiliation(s)
- Birgit Claes
- Centre for Surface Chemistry and Catalysis, KU Leuven , Kasteelpark Arenberg 23, 3001 Leuven, Belgium
| | - Tom Boudewijns
- Centre for Surface Chemistry and Catalysis, KU Leuven , Kasteelpark Arenberg 23, 3001 Leuven, Belgium
| | - Laurens Muchez
- Centre for Surface Chemistry and Catalysis, KU Leuven , Kasteelpark Arenberg 23, 3001 Leuven, Belgium
| | - Geert Hooyberghs
- Molecular Design and Synthesis, KU Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Erik V Van der Eycken
- Molecular Design and Synthesis, KU Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Jozef Vanderleyden
- Centre for Microbial and Plant Genetics, KU Leuven , Kasteelpark Arenberg 20, 3001 Leuven, Belgium
| | - Hans P Steenackers
- Centre for Microbial and Plant Genetics, KU Leuven , Kasteelpark Arenberg 20, 3001 Leuven, Belgium
| | - Dirk E De Vos
- Centre for Surface Chemistry and Catalysis, KU Leuven , Kasteelpark Arenberg 23, 3001 Leuven, Belgium
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17
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Rapp MV, Maier GP, Dobbs HA, Higdon NJ, Waite JH, Butler A, Israelachvili JN. Defining the Catechol–Cation Synergy for Enhanced Wet Adhesion to Mineral Surfaces. J Am Chem Soc 2016; 138:9013-6. [DOI: 10.1021/jacs.6b03453] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Michael V. Rapp
- Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, §Molecular, Cellular,
and Developmental Biology, and ∥Materials Department, University of California, Santa
Barbara, California 93106, United States
| | - Greg P. Maier
- Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, §Molecular, Cellular,
and Developmental Biology, and ∥Materials Department, University of California, Santa
Barbara, California 93106, United States
| | - Howard A. Dobbs
- Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, §Molecular, Cellular,
and Developmental Biology, and ∥Materials Department, University of California, Santa
Barbara, California 93106, United States
| | - Nicholas J. Higdon
- Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, §Molecular, Cellular,
and Developmental Biology, and ∥Materials Department, University of California, Santa
Barbara, California 93106, United States
| | - J. Herbert Waite
- Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, §Molecular, Cellular,
and Developmental Biology, and ∥Materials Department, University of California, Santa
Barbara, California 93106, United States
| | - Alison Butler
- Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, §Molecular, Cellular,
and Developmental Biology, and ∥Materials Department, University of California, Santa
Barbara, California 93106, United States
| | - Jacob N. Israelachvili
- Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, §Molecular, Cellular,
and Developmental Biology, and ∥Materials Department, University of California, Santa
Barbara, California 93106, United States
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18
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Roman MJ, Decker EA, Goddard JM. Retaining Oxidative Stability of Emulsified Foods by Novel Nonmigratory Polyphenol Coated Active Packaging. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5574-5582. [PMID: 27310107 DOI: 10.1021/acs.jafc.6b01933] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Oxidation causes lipid rancidity, discoloration, and nutrient degradation that decrease shelf life of packaged foods. Synthetic additives are effective oxidation inhibitors, but are undesirable to consumers who prefer "clean" label products. The aim of this study was to improve oxidative stability of emulsified foods by a novel nonmigratory polyphenol coated active packaging. Polyphenol coatings were applied to chitosan functionalized polypropylene (PP) by laccase assisted polymerization of catechol and catechin. Polyphenol coated PP exhibited both metal chelating (39.3 ± 2.5 nmol Fe(3+) cm(-2), pH 4.0) and radical scavenging (up to 52.9 ± 1.8 nmol Trolox eq cm(-2)) capacity, resulting in dual antioxidant functionality to inhibit lipid oxidation and lycopene degradation in emulsions. Nonmigratory polyphenol coated PP inhibited ferric iron promoted degradation better than soluble chelators, potentially by partitioning iron from the emulsion droplet interface. This work demonstrates that polyphenol coatings can be designed for advanced material chemistry solutions in active food packaging.
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Affiliation(s)
- Maxine J Roman
- Department of Food Science, University of Massachusetts , 102 Holdsworth Way, Amherst, Massachusetts 01003, United States
| | - Eric A Decker
- Department of Food Science, University of Massachusetts , 102 Holdsworth Way, Amherst, Massachusetts 01003, United States
- Bioactive Natural Products Research Group, Department of Biochemistry, Faculty of Science, King Abdulaziz University , P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Julie M Goddard
- Department of Food Science, University of Massachusetts , 102 Holdsworth Way, Amherst, Massachusetts 01003, United States
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19
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Alegre-Requena JV, Häring M, Herrera RP, Díaz Díaz D. Regulatory parameters of self-healing alginate hydrogel networks prepared via mussel-inspired dynamic chemistry. NEW J CHEM 2016. [DOI: 10.1039/c6nj02367c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Key parameters that influence the self-healing and water retention properties of hydrogels made of alginate–dopamine conjugates have been revealed.
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Affiliation(s)
- Juan V. Alegre-Requena
- Institute of Organic Chemistry
- University of Regensburg
- Universitätstrasse. 31
- D-93040 Regensburg
- Germany
| | - Marleen Häring
- Institute of Organic Chemistry
- University of Regensburg
- Universitätstrasse. 31
- D-93040 Regensburg
- Germany
| | - Raquel P. Herrera
- Laboratorio de Organocatálisis Asimétrica
- Departamento de Química Orgánica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
| | - David Díaz Díaz
- Institute of Organic Chemistry
- University of Regensburg
- Universitätstrasse. 31
- D-93040 Regensburg
- Germany
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20
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Cruz A, Rodrigues R, Pinheiro M, Mendo S. Transcriptomes analysis of Aeromonas molluscorum Av27 cells exposed to tributyltin (TBT): Unravelling the effects from the molecular level to the organism. MARINE ENVIRONMENTAL RESEARCH 2015; 109:132-9. [PMID: 26171931 PMCID: PMC4541717 DOI: 10.1016/j.marenvres.2015.06.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 06/24/2015] [Accepted: 06/26/2015] [Indexed: 06/04/2023]
Abstract
Aeromonas molluscorum Av27 cells were exposed to 0, 5 and 50 μM of TBT and the respective transcriptomes were obtained by pyrosequencing. Gene Ontology revealed that exposure to 5 μM TBT results in a higher number of repressed genes in contrast with 50 μM of TBT, where the number of over-expressed genes is greater. At both TBT concentrations, higher variations in gene expression were found in the functional categories associated with enzymatic activities, transport/binding and oxidation-reduction. A number of proteins are affected by TBT, such as the acriflavin resistance protein, several transcription-related proteins, several Hsps, ABC transporters, CorA and ZntB and other outer membrane efflux proteins, all of these involved in cellular metabolic processes, important to maintain overall cell viability. Using the STRING tool, several proteins with unknown function were related with others involved in degradation processes, such as the pyoverdine chromophore biosynthetic protein, that has been described as playing a role in the Sn-C cleavage of organotins. This approach has allowed a better understanding of the molecular effects of exposure of bacterial cells to TBT. Furthermore it contributes to the knowledge of the functional genomic aspects of bacteria exposed to this pollutant. Furthermore, the transcriptomic data gathered, and now publically available, constitute a valuable resource for comparative genome analysis.
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Affiliation(s)
- Andreia Cruz
- Biology Department & CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
| | - Raquel Rodrigues
- Biology Department & CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Miguel Pinheiro
- Advanced Services Unit, Biocant - Biotechnology Innovation Center, 3060-325, Cantanhede, Portugal; School of Medicine, University of St. Andrews, North Haugh, KY16 9TF, St. Andrews, UK
| | - Sónia Mendo
- Biology Department & CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
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21
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Parikh SJ, Mukome FND, Zhang X. ATR-FTIR spectroscopic evidence for biomolecular phosphorus and carboxyl groups facilitating bacterial adhesion to iron oxides. Colloids Surf B Biointerfaces 2014; 119:38-46. [PMID: 24859052 DOI: 10.1016/j.colsurfb.2014.04.022] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/08/2014] [Accepted: 04/23/2014] [Indexed: 11/30/2022]
Abstract
Attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy has been used to probe the binding of bacteria to hematite (α-Fe2O3) and goethite (α-FeOOH). In situ ATR-FTIR experiments with bacteria (Pseudomonas putida, Pseudomonas aeruginosa, Escherichia coli), mixed amino acids, polypeptide extracts, deoxyribonucleic acid (DNA), and a suite of model compounds were conducted. These compounds represent carboxyl, catecholate, amide, and phosphate groups present in siderophores, amino acids, polysaccharides, phospholipids, and DNA. Due in part to the ubiquitous presence of carboxyl groups in biomolecules, numerous IR peaks corresponding to outer-sphere or unbound (1400 cm(-1)) and inner-sphere (1310-1320 cm(-1)) coordinated carboxyl groups are noted following reaction of bacteria and biomolecules with α-Fe2O3 and α-FeOOH. However, the data also reveal that the presence of low-level amounts (i.e., 0.45-0.79%) of biomolecular phosphorous groups result in strong IR bands at ∼1043 cm(-1), corresponding to inner-sphere Fe-O-P bonds, underscoring the importance of bacteria associated P-containing groups in biomolecule and cell adhesion. Spectral comparisons also reveal slightly greater P-O-Fe contributions for bacteria (Pseudomonad, E. coli) deposited on α-FeOOH, as compared to α-Fe2O3. This data demonstrates that slight differences in bacterial adhesion to Fe oxides can be attributed to bacterial species and Fe-oxide minerals. However, more importantly, the strong binding affinity of phosphate in all bacteria samples to both Fe-oxides results in the formation of inner-sphere Fe-O-P bonds, signifying the critical role of biomolecular P in the initiation of bacterial adhesion.
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Affiliation(s)
- Sanjai J Parikh
- Department of Land and, Air and Water Resources, University of California, Davis, One Shields Avenue, LAWR, Davis, CA 95616, United States.
| | - Fungai N D Mukome
- Department of Land and, Air and Water Resources, University of California, Davis, One Shields Avenue, LAWR, Davis, CA 95616, United States
| | - Xiaoming Zhang
- Department of Land and, Air and Water Resources, University of California, Davis, One Shields Avenue, LAWR, Davis, CA 95616, United States
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22
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Baramov T, Keijzer K, Irran E, Mösker E, Baik MH, Süssmuth R. Synthesis and structural characterization of hexacoordinate silicon, germanium, and titanium complexes of the E. coli siderophore enterobactin. Chemistry 2013; 19:10536-42. [PMID: 23821482 DOI: 10.1002/chem.201301825] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Indexed: 11/07/2022]
Abstract
The E. coli siderophore enterobactin, one of the strongest Fe(III) chelators known to date, is also capable of binding Si(IV) under physiological conditions. We report on the synthesis and structural characterization of the tris(catecholate) Si(IV) -enterobactin complex and its Ge(IV) and Ti(IV) analogues. Comparative structural analysis, supported by quantum-chemical calculations, reveals the correlation between the ionic radius and the structural changes in enterobactin upon complexation.
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Affiliation(s)
- Todor Baramov
- Technische Universität Berlin, Fakultät II, Institut für Chemie, Strasse des 17. Juni 124, 10623 Berlin, Germany
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23
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Petrone L. Molecular surface chemistry in marine bioadhesion. Adv Colloid Interface Sci 2013; 195-196:1-18. [PMID: 23623000 DOI: 10.1016/j.cis.2013.03.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 03/10/2013] [Accepted: 03/10/2013] [Indexed: 01/12/2023]
Abstract
This review covers the in situ molecular physicochemical characterisation of bioadhesives at solid/liquid interfaces, with the aim of elucidating the adhesion strategies that lie at the root of marine biofouling. It focuses on three major foulers: mussels, algae and barnacles. The dispersal of these organisms, their colonisation of surfaces, and ultimately their survival rely critically on the ability of the organisms' larvae or spores to locate a favourable settlement site and undergo metamorphosis, thus initiating their sessile existence. Differences in the composition of adhesive secretions and the strategies employed for their temporary or permanent implementation exists between the larval and adult life stages. To date, only a few adhesive secretions from marine fouling organisms have been adequately described in terms of their chemical composition, and a survey revealed the presence of certain recurrent functional groups, specifically catechol, carboxylate, monoester-sulphate and -phosphate. This review will describe the binding modes of such functionalities to wet mineral/metal oxides surfaces. Such functionalities will be ranked based on their ability to bind to hydrophilic surfaces replacing surface-bound water (Langmuir adsorption constant) as well as other adsorbates (competitive adsorption). A plausible explanation for the propensity of the reviewed adhesive functionalities to bind to hydrous metal oxide surfaces will be given on the basis of the Hard and Soft Acids and Bases principle, Hofmeister effects and entropic considerations. From the in situ analysis of marine organism bioadhesives and adsorption studies of functionalities relevant to the bioadhesion process, insights can be gleaned for a knowledge-based innovation of antifouling strategies and the synthesis of strong, durable adhesive materials, which are suitable for implementation in wet environments.
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24
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Sedó J, Saiz-Poseu J, Busqué F, Ruiz-Molina D. Catechol-based biomimetic functional materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013. [PMID: 23180685 DOI: 10.1002/adma.201202343] [Citation(s) in RCA: 474] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Catechols are found in nature taking part in a remarkably broad scope of biochemical processes and functions. Though not exclusively, such versatility may be traced back to several properties uniquely found together in the o-dihydroxyaryl chemical function; namely, its ability to establish reversible equilibria at moderate redox potentials and pHs and to irreversibly cross-link through complex oxidation mechanisms; its excellent chelating properties, greatly exemplified by, but by no means exclusive, to the binding of Fe(3+); and the diverse modes of interaction of the vicinal hydroxyl groups with all kinds of surfaces of remarkably different chemical and physical nature. Thanks to this diversity, catechols can be found either as simple molecular systems, forming part of supramolacular structures, coordinated to different metal ions or as macromolecules mostly arising from polymerization mechanisms through covalent bonds. Such versatility has allowed catechols to participate in several natural processes and functions that range from the adhesive properties of marine organisms to the storage of some transition metal ions. As a result of such an astonishing range of functionalities, catechol-based systems have in recent years been subject to intense research, aimed at mimicking these natural systems in order to develop new functional materials and coatings. A comprehensive review of these studies is discussed in this paper.
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Affiliation(s)
- Josep Sedó
- Centro de Investigación en Nanociencia y Nanotecnología, Campus UAB, Cerdanyola del Vallès, Barcelona, Spain
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25
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Jacob DL, Borchardt JD, Navaratnam L, Otte ML, Bezbaruah AN. Uptake and translocation of Ti from nanoparticles in crops and wetland plants. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2013; 15:142-53. [PMID: 23487992 DOI: 10.1080/15226514.2012.683209] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Bioavailability of engineered metal nanoparticles affects uptake in plants, impacts on ecosystems, and phytoremediation. We studied uptake and translocation of Ti in plants when the main source of this metal was TiO2 nanoparticles. Two crops (Phaseolus vulgaris (bean) and Triticum aestivum (wheat)), a wetland species (Rumex crispus, curly dock), and the floating aquatic plant (Elodea canadensis, Canadian waterweed), were grown in nutrient solutions with TiO2 nanoparticles (0, 6, 18 mmol Ti L(-1) for P. vulgaris, T. aestivum, and R. crispus; and 0 and 12 mmol Ti L(-1) for E. canadensis). Also examined in E. canadensis was the influence of TiO2 nanoparticles upon the uptake of Fe, Mn, and Mg, and the influence of P on Ti uptake. For the rooted plants, exposure to TiO2 nanoparticles did not affect biomass production, but significantly increased root Ti sorption and uptake. R. crispus showed translocation of Ti into the shoots. E. canadensis also showed significant uptake of Ti, P in the nutrient solution significantly decreased Ti uptake, and the uptake patterns of Mn and Mg were altered. Ti from nano-Ti was bioavailable to plants, thus showing the potential for cycling in ecosystems and for phytoremediation, particularly where water is the main carrier.
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Affiliation(s)
- Donna L Jacob
- Wet Ecosystem Research Group, Department of Biological Sciences, North Dakota State University, Dept. 2715, PO Box 6050, Fargo, ND 58108-6050, USA.
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