Now researchers at Ritsumeikan University in Japan have developed a soft micro-robot finger that can enable direct interaction with the micro-world. The study, led by Professor Satoshi Konishi, was published in Scientific Reports.
Schematic representation of the interaction between microfinger and insect (pill bug).
“A tactile microfinger is achieved through the use of a flexible liquid metal strain sensor. A soft pneumatic balloon actuator acts as an artificial muscle, allowing for control and finger-like movement of the sensor. With a robotic glove, a human user can control the sensor directly using microfingers. This type of system allows for safe interaction with insects and other microscopic objects,” Konishi said in a statement.
The study showed promise for realizing direct human interaction with insects
The researchers used a pill bug as a representative sample of an insect. It was fixed with the help of a suction tool and a force was applied with the newly developed microfinger and the reaction force of the beetle’s legs was measured.
Photo of a developed micro hand with five micro fingers.
The reaction force measured on the pill beetle’s legs was approximately 10 mN (millinewtons), which was similar to previously estimated values. Although the study was a proof-of-concept, it shows “great promise” for elaborating direct human interactions with the microworld.
