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1,278 results on '"VANGRONSVELD, Jaco"'

6. Limited effects of crop foliar Si fertilization on a marginal soil under a future climate scenario

Author

Rineau, Francois, Groh, Jannis, Claes, Julie, Grosjean, Kristof, Mench, Michel, Moreno-Druet, Maria, Povilaitis, Virmantas, Pütz, Thomas, Rutkowska, Beata, Schröder, Peter, Soudzilovskaia, Nadejda A., Swinnen, Xander, Szulc, Wieslaw, Thijs, Sofie, Vanderborght, Jan, Vangronsveld, Jaco, Vereecken, Harry, Verhaege, Kasper, Žydelis, Renaldas, and Loit, Evelin

Published
2024
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7. Cable bacteria as long-range biological semiconductors

Author

Bonné, Robin, Hou, Ji-Ling, Hustings, Jeroen, Meert, Mathijs, Hidalgo-Martinez, Silvia, Cornelissen, Rob, D'Haen, Jan, Thijs, Sofie, Vangronsveld, Jaco, Valcke, Roland, Cleuren, Bart, Meysman, Filip J. R., and Manca, Jean V.

Subjects
Physics - Biological Physics, Condensed Matter - Materials Science
Abstract

Filamentous cable bacteria exhibit unprecedented long-range biological electron transport, which takes place in a parallel fibre structure that shows an extraordinary electrical conductivity for a biological material. Still, the underlying electron transport mechanism remains undisclosed. Here we determine the intrinsic electrical properties of individual cable bacterium filaments. We retrieve an equivalent electrical circuit model, characterising cable bacteria as resistive biological wires. Temperature dependent experiments reveal that the charge transport is thermally activated, and can be described with an Arrhenius-type relation over a broad temperature range (-196{\deg}C to +50{\deg}C), thus excluding metal-like electron transport. Furthermore, when cable bacterium filaments are utilized as the channel in a field-effect transistor, they show n-type transport, indicating that electrons rather than holes are the charge carriers. Electron mobilities are in the order of 10$^{-1}$ cm$^2$/Vs, comparable to many organic semiconductors. This new type of biological centimetre-range semiconductor with low resistivity offers new perspectives for both fundamental studies and applications in (bio)electronics., Comment: 19 pages, including supplementary information

Published
2019

13. Quantification of Airborne Particulate Matter and Trace Element Deposition on Hedera helix and Senecio cineraria Leaves.

Author

Saran, Anabel, Mendez, Mariano Javier, Much, Diego Gabriel, Imperato, Valeria, Thijs, Sofie, Vangronsveld, Jaco, and Merini, Luciano Jose

Subjects
AIR quality monitoring stations, DUST, PARTICULATE matter, ENGLISH ivy, AIR quality, AIR pollution
Abstract

In both developed and developing countries, atmospheric pollution with particulate matter (PM) remains an important issue. Despite the health effects of poor air quality, studies on air pollution are often limited by the high costs of continuous monitoring and the need for extensive sampling. Furthermore, these particles are often enriched with potentially toxic trace elements and organic pollutants. This study evaluates both the composition of atmospheric dust accumulated during a certain timespan on Hedera helix and Senecio cineraria leaves and the potential for their use as bio-monitors. The test plants were positioned near automatic air quality monitoring stations at four different sites with respectively high, moderate and low traffic intensity. The gravimetric deposition of PM10 and PM2.5 on leaves was compared with data recorded by the monitoring stations and related to the weather conditions reported by Argentina's National Meteorological Service. To determine the presence of trace elements enriching the PM deposited on leaves, two analytical techniques were applied: XRF (not destructive) and ICP (destructive). The results indicated that only in the unpaved street location (site 2) did PM10 and PM2.5 concentrations (90 µg m−3 and 9 µg m−3) in the air exceed more than five times WHO guidelines (15 µg m−3 and 5 µg m−3). However, several trace elements were found to be enriching PM deposited on leaves from all sites. Predominantly, increased concentrations of Cd, Cu, Ti, Mn, Zn and Fe were found, which were associated with construction, traffic and unpaved street sources. Furthermore, based on its capability to sequester above 2800 µg cm−2 of PM10, 2450 µg cm−2 of PM2.5 and trace elements, Senecio cineraria can be taken into consideration for adoption as a bio-monitor or even for PM mitigation. [ABSTRACT FROM AUTHOR]

Published
2024
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27. Towards more predictive and interdisciplinary climate change ecosystem experiments

Author

Rineau, Francois, Malina, Robert, Beenaerts, Natalie, Arnauts, Natascha, Bardgett, Richard D., Berg, Matty P., Boerema, Annelies, Bruckers, Liesbeth, Clerinx, Jan, Davin, Edouard L., De Boeck, Hans J., De Dobbelaer, Tom, Dondini, Marta, De Laender, Frederik, Ellers, Jacintha, Franken, Oscar, Gilbert, Lucy, Gudmundsson, Lukas, Janssens, Ivan A., Johnson, David, Lizin, Sebastien, Longdoz, Bernard, Meire, Patrick, Meremans, Dominique, Milbau, Ann, Moretti, Michele, Nijs, Ivan, Nobel, Anne, Pop, Iuliu Sorin, Puetz, Thomas, Reyns, Wouter, Roy, Jacques, Schuetz, Jochen, Seneviratne, Sonia I., Smith, Pete, Solmi, Francesca, Staes, Jan, Thiery, Wim, Thijs, Sofie, Vanderkelen, Inne, Van Landuyt, Wouter, Verbruggen, Erik, Witters, Nele, Zscheischler, Jakob, and Vangronsveld, Jaco

Published
2019
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39. Phytomanagement of trace element polluted fields with aromatic plants: supporting circular bio-economies.

Author

Saran, Anabel, Much, Diego, Vangronsveld, Jaco, and Merini, Luciano

Subjects
AROMATIC plants, FODDER crops, CROPS, ESSENTIAL oils, SOIL pollution, TRACE elements
Abstract

Trace elements pollution of soils became a global concern because of their persistence in the environment which can lead to accumulation in food chains up to toxic levels. At the same time, there is a shortage of arable land for growing food, fodder and industrial crops, which highlights the need for remediation/use of polluted land. Restoration of degraded lands has been included as a vital component of UN Sustainable Development Goals (SDGs). We summarize various sources of entry of important trace elements in the environment, available biological reclamation and management strategies and their limitations. Recent advances in phytomanagement approaches using aromatic crops to obtain economically valuable products such as essential oils and revalorize such polluted areas are reviewed. The worldwide application of this strategy in the last 10 years is illustrated through a choropleth map. Finally, the emerging concept of phytomanagement as a restorative and regenerative circular bio-economy is also discussed. [ABSTRACT FROM AUTHOR]

Published
2024
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