Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant Foliage
Abstract The agrochemical run‐off associated with crop control is an unintended consequence of droplet rebound from plant foliage, which negatively affects crop performance and the environment. This is most critical in water‐based formulations delivered on plant surfaces that are typically waxy and...
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| Format: | Article |
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Wiley
2025-05-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202416686 |
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| author | Mamata Bhattarai Hedar Al‐Terke Kai Liu Zhangmin Wan Petri Kilpeläinen Alistair W. T. King Alexey Khakalo Jiayun Xu Chunlin Xu Robin H. A. Ras Bruno D. Mattos Orlando J. Rojas |
| author_facet | Mamata Bhattarai Hedar Al‐Terke Kai Liu Zhangmin Wan Petri Kilpeläinen Alistair W. T. King Alexey Khakalo Jiayun Xu Chunlin Xu Robin H. A. Ras Bruno D. Mattos Orlando J. Rojas |
| author_sort | Mamata Bhattarai |
| collection | DOAJ |
| description | Abstract The agrochemical run‐off associated with crop control is an unintended consequence of droplet rebound from plant foliage, which negatively affects crop performance and the environment. This is most critical in water‐based formulations delivered on plant surfaces that are typically waxy and nonwetting. This study introduces an alternative to synthetic surfactants and high molecular weight polymers that are used as spreading agents for agrochemicals. Specifically, biopolymeric adjuvants (hemicelluloses and oligomeric lignin) extracted from wood by pressurized hot water are shown for their synergistic pinning capacity and surface activity that can effectively suppress droplet rebound from hydrophobic surfaces. Hemicellulose and lignin mixtures, alongside several model compounds, are investigated for understanding the dynamics of droplet impact and its correlation with biomacromolecule formations. The benefit of utilizing lean solutions (0.1 wt.% concentration) is highlighted for reducing droplet rebounding from leaves, outperforming synthetic systems in current use. For instance, a tenfold deposition improvement is demonstrated on citrus leaves, because of a significantly suppressed droplet roll‐off. These results establish the excellent prospects of wood extracts to improve crop performance. |
| format | Article |
| id | doaj-art-eefa9daf72cf4bf9a4b7b48abf0ba5f0 |
| institution | OA Journals |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-eefa9daf72cf4bf9a4b7b48abf0ba5f02025-08-20T02:15:07ZengWileyAdvanced Science2198-38442025-05-011217n/an/a10.1002/advs.202416686Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant FoliageMamata Bhattarai0Hedar Al‐Terke1Kai Liu2Zhangmin Wan3Petri Kilpeläinen4Alistair W. T. King5Alexey Khakalo6Jiayun Xu7Chunlin Xu8Robin H. A. Ras9Bruno D. Mattos10Orlando J. Rojas11Department of Bioproducts and Biosystems School of Chemical Engineering Aalto University Espoo FI‐00076 FinlandDepartment of Applied Physics Aalto University Espoo FI‐00076 FinlandDepartment of Applied Physics Aalto University Espoo FI‐00076 FinlandDepartment of Chemical & Biological Engineering Department of Chemistry Department of Wood Science Bioproducts Institute The University of British Columbia Vancouver BC V6T 1Z3 CanadaProduction Systems Biomass Fractionation Technologies Natural Resource Institute Finland (LUKE) Viikinkaari 9 Helsinki 00790 FinlandBioinspired Materials Cellulose Coatings and Films VTT Technical Research Centre of Finland Ltd. Tietotie 4E Espoo FI‐02044 FinlandBioinspired Materials Cellulose Coatings and Films VTT Technical Research Centre of Finland Ltd. Tietotie 4E Espoo FI‐02044 FinlandLaboratory of Natural Materials Technology Åbo Akademi University Henrikinkatu 2 Turku FI‐20500 FinlandLaboratory of Natural Materials Technology Åbo Akademi University Henrikinkatu 2 Turku FI‐20500 FinlandDepartment of Applied Physics Aalto University Espoo FI‐00076 FinlandDepartment of Bioproducts and Biosystems School of Chemical Engineering Aalto University Espoo FI‐00076 FinlandDepartment of Bioproducts and Biosystems School of Chemical Engineering Aalto University Espoo FI‐00076 FinlandAbstract The agrochemical run‐off associated with crop control is an unintended consequence of droplet rebound from plant foliage, which negatively affects crop performance and the environment. This is most critical in water‐based formulations delivered on plant surfaces that are typically waxy and nonwetting. This study introduces an alternative to synthetic surfactants and high molecular weight polymers that are used as spreading agents for agrochemicals. Specifically, biopolymeric adjuvants (hemicelluloses and oligomeric lignin) extracted from wood by pressurized hot water are shown for their synergistic pinning capacity and surface activity that can effectively suppress droplet rebound from hydrophobic surfaces. Hemicellulose and lignin mixtures, alongside several model compounds, are investigated for understanding the dynamics of droplet impact and its correlation with biomacromolecule formations. The benefit of utilizing lean solutions (0.1 wt.% concentration) is highlighted for reducing droplet rebounding from leaves, outperforming synthetic systems in current use. For instance, a tenfold deposition improvement is demonstrated on citrus leaves, because of a significantly suppressed droplet roll‐off. These results establish the excellent prospects of wood extracts to improve crop performance.https://doi.org/10.1002/advs.202416686adhesionagrochemical spreadingcrop protectiondroplet bouncinghemicellulosesleaves, lignin |
| spellingShingle | Mamata Bhattarai Hedar Al‐Terke Kai Liu Zhangmin Wan Petri Kilpeläinen Alistair W. T. King Alexey Khakalo Jiayun Xu Chunlin Xu Robin H. A. Ras Bruno D. Mattos Orlando J. Rojas Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant Foliage Advanced Science adhesion agrochemical spreading crop protection droplet bouncing hemicelluloses leaves, lignin |
| title | Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant Foliage |
| title_full | Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant Foliage |
| title_fullStr | Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant Foliage |
| title_full_unstemmed | Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant Foliage |
| title_short | Wood Biomolecules as Agricultural Adjuvants for Effective Suppression of Droplet Rebound from Plant Foliage |
| title_sort | wood biomolecules as agricultural adjuvants for effective suppression of droplet rebound from plant foliage |
| topic | adhesion agrochemical spreading crop protection droplet bouncing hemicelluloses leaves, lignin |
| url | https://doi.org/10.1002/advs.202416686 |
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