A bioinspired hydrogen bond-triggered ultrasensitive ionic mechanoreceptor skin

Vipin Amoli, Joo Sung Kim, Eunsong Jee, Yoon Sun Chung, So Young Kim, Jehyoung Koo, Hanbin Choi, Yunah Kim, Do Hwan Kim

Research output: Contribution to journalArticleResearchpeer-review

Abstract

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.

Original languageEnglish
Article number4019
JournalNature Communications
Volume10
Issue number1
DOIs
StatePublished - 2019 Dec 1

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mechanoreceptors
Mechanoreceptors
Hydrogen
Skin
Hydrogen bonds
hydrogen bonds
blood cells
Ion Pumps
Cellular Structures
Ions
Polyurethanes
ion pumps
Sensor arrays
Pacinian Corpuscles
Microcontrollers
Merkel Cells
Silicon Dioxide
Printed circuit boards
Thermoplastics
Artificial Cells

Cite this

Amoli, Vipin ; Kim, Joo Sung ; Jee, Eunsong ; Chung, Yoon Sun ; Kim, So Young ; Koo, Jehyoung ; Choi, Hanbin ; Kim, Yunah ; Kim, Do Hwan. / A bioinspired hydrogen bond-triggered ultrasensitive ionic mechanoreceptor skin. In: Nature Communications. 2019 ; Vol. 10, No. 1.
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title = "A bioinspired hydrogen bond-triggered ultrasensitive ionic mechanoreceptor skin",
abstract = "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.",
author = "Vipin Amoli and Kim, {Joo Sung} and Eunsong Jee and Chung, {Yoon Sun} and Kim, {So Young} and Jehyoung Koo and Hanbin Choi and Yunah Kim and Kim, {Do Hwan}",
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Amoli, V, Kim, JS, Jee, E, Chung, YS, Kim, SY, Koo, J, Choi, H, Kim, Y & Kim, DH 2019, 'A bioinspired hydrogen bond-triggered ultrasensitive ionic mechanoreceptor skin', Nature Communications, vol. 10, no. 1, 4019. https://doi.org/10.1038/s41467-019-11973-5

A bioinspired hydrogen bond-triggered ultrasensitive ionic mechanoreceptor skin. / Amoli, Vipin; Kim, Joo Sung; Jee, Eunsong; Chung, Yoon Sun; Kim, So Young; Koo, Jehyoung; Choi, Hanbin; Kim, Yunah; Kim, Do Hwan.

In: Nature Communications, Vol. 10, No. 1, 4019, 01.12.2019.

Research output: Contribution to journalArticleResearchpeer-review

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