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Researchers built nanowire-microfluidic for sensitive and flexible bionic sensors

Penelitian - Researchers demonstrated multiscale nanowire-microfluidic hybrid strain sensors with high sensitivity and flexibility that could potentially serve as detectors for human movement and bionic ligaments in soft robotics. The sensor operates at low voltage and is capable of responding to various mechanical deformations for use in electronic systems for robotic wireless control.

In recent years, strain sensors have shown the potential for soft electronic applications to detect human body movements, health monitoring systems, and human-machine interactions. Strain sensors can also be useful for building human body parts, soft robotics and bionic robotics in the future.

Penelitian Researchers built nanowire-microfluidic for sensitive and flexible bionic sensors

Nanomaterials with low-dimensional morphology have been explored to improve the performance of strain sensors, but it remains difficult to achieve high stretchability and high sensitivity simultaneously. Chuan Liu from Sun Yat-Sen University in Guangzhou and colleagues designed the sensor strain of composite structures based on nanomaterials and conductive liquids.

The nanowire-microfluidic hybrid (NMH) strain sensor responds to multiscale strains from 4% to over 400% with high sensitivity and durability under low pressure. Metal nanowires and carbon nanotubes are used to create NMH strain sensors, which simultaneously display the highest average measuring factor and stretching or much better than conventional nanowire devices.



Sensors can operate at low voltages and are capable of responding to various mechanical deformations embedded in human skin where sensors can monitor large-scale deformations including friction motions and small-scale deformations including facial expressions and pulses.

Journal : Songjia Han et al. Multiscale nanowire-microfluidic hybrid strain sensors with high sensitivity and stretchability, NPJ Flexible Electronics, 04 June 2018, DOI:10.1038/s41528-018-0029-x

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