Plant nanobionic materials with a giant temperature response mediated by pectin-Ca2+

摘要: Conventional approaches to create biomaterials rely on reverse engineering of biological structures, biomimicking, and bioinspiration. Plant nanobionics is a recent approach engineer new materials combining plant organelles with synthetic nanoparticles enhance, for example, photosynthesis. Biological structures often outperform man-made materials. For higher plants sense temperature changes high responsivity. However, these properties do not persist after cell death. Here, we permanently stabilize the response isolated cells adding carbon nanotubes (CNTs). Interconnecting cells, an effective coefficient electrical resistance (TCR) −1,730% K−1, ∼2 orders magnitude than best available sensors. This extreme due metal ions contained in egg-box structure pectin backbone, lodged between cellulose microfibrils. The presence network CNTs stabilizes at temperatures without decreasing activation energy material. also increase background conductivity, making suitable elements thermal distance