Understanding the effects of root structure on the mechanical behaviour of engineered plant root materials
Plant root growth can be altered by introducing obstacles in the path of growth. This principle is used in design to produce planar grid structures composed of interweaving roots. The Engineered Plant Root Materials (EPRMs) grown with this method have the potential to serve as environmentally sensit...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127522011443 |
| _version_ | 1811175519904858112 |
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| author | Israel A. Carrete Sepideh Ghodrat Diana Scherer Elvin Karana |
| author_facet | Israel A. Carrete Sepideh Ghodrat Diana Scherer Elvin Karana |
| author_sort | Israel A. Carrete |
| collection | DOAJ |
| description | Plant root growth can be altered by introducing obstacles in the path of growth. This principle is used in design to produce planar grid structures composed of interweaving roots. The Engineered Plant Root Materials (EPRMs) grown with this method have the potential to serve as environmentally sensitive alternatives for conventional materials, but their applications are delimited by their material properties. To bridge the gap in the wider application of these materials, the role of plant root structure and an agar-agar matrix are explored in relation to the mechanical properties of the EPRMs. Tensile tests were performed on five root configurations, ranging from single roots to grids of varying sizes. Heterogeneities in each configuration suggest poor load distribution throughout the structure. Agar-agar was introduced as a biopolymer matrix to improve load distribution and tensile properties. Digital microscopy at the intersection of grid cells suggests a correlation between cell size, root tip density, and material strength. The largest cell size (2 cm) had the highest root tip density and yield strength (0.568 ± 0.181 roots/mm2 and 0.234 ± 0.018 MPa, respectively), whereas the structure with the least root tips (1 cm) was 31 % weaker. |
| first_indexed | 2024-04-10T19:37:14Z |
| format | Article |
| id | doaj.art-ff3da7fb58ce4522b6c92f0f11140ac8 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-10T19:37:14Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-ff3da7fb58ce4522b6c92f0f11140ac82023-01-30T04:12:23ZengElsevierMaterials & Design0264-12752023-01-01225111521Understanding the effects of root structure on the mechanical behaviour of engineered plant root materialsIsrael A. Carrete0Sepideh Ghodrat1Diana Scherer2Elvin Karana3Materializing Futures, Department of Sustainable Design Engineering, Delft University of Technology, Landbergstraat 15, 2628CE Delft, The NetherlandsMaterializing Futures, Department of Sustainable Design Engineering, Delft University of Technology, Landbergstraat 15, 2628CE Delft, The Netherlands; Corresponding author.Interwoven, Amsterdam, The NetherlandsMaterializing Futures, Department of Sustainable Design Engineering, Delft University of Technology, Landbergstraat 15, 2628CE Delft, The NetherlandsPlant root growth can be altered by introducing obstacles in the path of growth. This principle is used in design to produce planar grid structures composed of interweaving roots. The Engineered Plant Root Materials (EPRMs) grown with this method have the potential to serve as environmentally sensitive alternatives for conventional materials, but their applications are delimited by their material properties. To bridge the gap in the wider application of these materials, the role of plant root structure and an agar-agar matrix are explored in relation to the mechanical properties of the EPRMs. Tensile tests were performed on five root configurations, ranging from single roots to grids of varying sizes. Heterogeneities in each configuration suggest poor load distribution throughout the structure. Agar-agar was introduced as a biopolymer matrix to improve load distribution and tensile properties. Digital microscopy at the intersection of grid cells suggests a correlation between cell size, root tip density, and material strength. The largest cell size (2 cm) had the highest root tip density and yield strength (0.568 ± 0.181 roots/mm2 and 0.234 ± 0.018 MPa, respectively), whereas the structure with the least root tips (1 cm) was 31 % weaker.http://www.sciencedirect.com/science/article/pii/S0264127522011443Engineered Living Materials (ELMs)BiodesignPlant RootsCharacterizationBiofabricationNatural Fiber Composites |
| spellingShingle | Israel A. Carrete Sepideh Ghodrat Diana Scherer Elvin Karana Understanding the effects of root structure on the mechanical behaviour of engineered plant root materials Materials & Design Engineered Living Materials (ELMs) Biodesign Plant Roots Characterization Biofabrication Natural Fiber Composites |
| title | Understanding the effects of root structure on the mechanical behaviour of engineered plant root materials |
| title_full | Understanding the effects of root structure on the mechanical behaviour of engineered plant root materials |
| title_fullStr | Understanding the effects of root structure on the mechanical behaviour of engineered plant root materials |
| title_full_unstemmed | Understanding the effects of root structure on the mechanical behaviour of engineered plant root materials |
| title_short | Understanding the effects of root structure on the mechanical behaviour of engineered plant root materials |
| title_sort | understanding the effects of root structure on the mechanical behaviour of engineered plant root materials |
| topic | Engineered Living Materials (ELMs) Biodesign Plant Roots Characterization Biofabrication Natural Fiber Composites |
| url | http://www.sciencedirect.com/science/article/pii/S0264127522011443 |
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