| 초록 |
The efforts to learn and take inspiration from nature have proven successful in a wide range of areas such as epidermal electronics, dry adhesion, optical systems and biomimetic materials. Here, we report that the wing locking device of beetles can be exploited to form a reversible interlocker based on van der Waals force-assisted binding between high aspect-ratio polymer hairs. Based on the bio-inspired interlocker, the skin-attachable device can measure tiny forces such as the pulsation for in vitro diagnostics. In advance, we present a simple wearable bandage-like capacitive pressure sensor, which adopted bio-inspired designs to achieve ultra-conformity on skin surfaces and enhancement in the signal-to-noise ratio of the retrieved signals from the human body. It is demonstrated that the waveforms retrieved from a person with cardiac diseases show different patterns, suggesting that the device can be advantageous toward expeditious diagnosis of cardiovascular and cardiac illnesses. |
