A bioinspired hydrogen bond-triggered ultrasensitive ionic mechanoreceptor skin
| Autor: | So Young Kim, Jehyoung Koo, Yunah Kim, Joo Sung Kim, Do Hwan Kim, Eunsong Jee, Yoonsun Chung, Vipin Amoli, Hanbin Choi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Adult Materials science Science Polyurethanes Electronic skin General Physics and Astronomy Ionic bonding Silica Gel Nanotechnology 02 engineering and technology Biosensing Techniques Mechanotransduction Cellular General Biochemistry Genetics and Molecular Biology Artificial skin Article Merkel Cells 03 medical and health sciences Biomimetics Physical Stimulation Skin Physiological Phenomena medicine Electrochemistry Pressure Humans Mechanotransduction lcsh:Science Skin Composites chemistry.chemical_classification Multidisciplinary integumentary system Hydrogen Bonding General Chemistry Polymer Self-assembly 021001 nanoscience & nanotechnology Flexible electronics Sensors and biosensors Mechanoreceptor 030104 developmental biology medicine.anatomical_structure chemistry Touch lcsh:Q 0210 nano-technology Mechanoreceptors |
| Zdroj: | Nature Communications, Vol 10, Iss 1, Pp 1-13 (2019) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | Biological cellular structures have inspired many scientific disciplines to design synthetic structures that can mimic their functions. Here, we closely emulate biological cellular structures in a rationally designed synthetic multicellular hybrid ion pump, composed of hydrogen-bonded [EMIM+][TFSI−] ion pairs on the surface of silica microstructures (artificial mechanoreceptor cells) embedded into thermoplastic polyurethane elastomeric matrix (artificial extracellular matrix), to fabricate ionic mechanoreceptor skins. Ionic mechanoreceptors engage in hydrogen bond-triggered reversible pumping of ions under external stimulus. Our ionic mechanoreceptor skin is ultrasensitive (48.1–5.77 kPa−1) over a wide spectrum of pressures (0–135 kPa) at an ultra-low voltage (1 mV) and demonstrates the ability to surpass pressure-sensing capabilities of various natural skin mechanoreceptors (i.e., Merkel cells, Meissner’s corpuscles, Pacinian corpuscles). We demonstrate a wearable drone microcontroller by integrating our ionic skin sensor array and flexible printed circuit board, which can control directions and speed simultaneously and selectively in aerial drone flight. Wearable pressure sensors have a range of potential applications. Here, the authors develop ion pairs decorated silica microstructures embedded in an elastomeric matrix to mimic natural skin mechanoreceptors’ functions for applications in pressure-sensitive artificial skin. |
| Databáze: | OpenAIRE |
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