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http://dx.doi.org/10.4103/1673-5374.259605 | DOI Listing |
PNAS Nexus
December 2024
Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel.
Rose prickles are small-scale, plant-based anchoring tools of multifunctional biomechanical roles, combining physical defense against herbivores and growth support on surrounding objects. By employing multiscale structural observations, nanomechanical characterizations, and finite-element simulations, we unveil that the dog rose ( Linnaeus) prickle incorporates structural-mechanical modifications at different length scales, resulting in macroscopic stress-locking effects that provide the prickle extreme damage-resistant capabilities and secure its functional form against catastrophic failures. These functional design strategies, unique to plant-based biomechanical tools, may promote futuristic micro-engineered anchoring platforms for micro-robotics locomotion, biomedical microinjection, and micromechanical systems.
View Article and Find Full Text PDFPolymers (Basel)
November 2024
Laboratory of Adaptive and Regenerative Biology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
Hydrogels are hydrophilic 3-dimensional networks characterized by the retention of a large amount of water. Because of their water component, hydrogels are a promising method for targeted drug delivery. The water component, or "free volume", is a potential vehicle for protein drugs.
View Article and Find Full Text PDFNanoscale
November 2024
Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
Adv Mater
November 2024
Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland.
Chemistry
December 2024
Institute for Biological Interfaces 1 (IBG 1), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
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