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Related Experiment Video

Updated: Jun 23, 2025

Bioinspired Soft Robot with Incorporated Microelectrodes
08:24

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Octopus-Inspired Soft Robot for Slow Drug Release.

Dingwen Tong1,2, Yiqun Zhao1,2, Zhengnan Wu1,2

  • 1School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215131, China.

Biomimetics (Basel, Switzerland)
|June 26, 2024
PubMed
Summary

This study introduces a novel octopus-inspired soft robot (OISR) capable of dynamic adhesion and locomotion within the gastrointestinal tract. The OISR offers a promising new method for targeted drug delivery in the GI tract.

Keywords:
drug deliverymagnetic actuationmultimodal locomotionoctopus-inspiredsoft robotsuction cup

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Area of Science:

  • Biomimetics and Soft Robotics
  • Gastrointestinal Drug Delivery
  • Bio-inspired Adhesion Mechanisms

Background:

  • Octopus suckers utilize pressure differences for adhesion, inspiring many passive adhesive systems.
  • Existing octopus-inspired systems lack dynamic control, locomotion, and efficient drug delivery capabilities.
  • The gastrointestinal tract presents challenges for targeted and sustained drug delivery.

Purpose of the Study:

  • To develop a novel octopus-inspired soft robot (OISR) with dynamically controllable adhesion and locomotion.
  • To evaluate the OISR's performance in the gastrointestinal tract for drug delivery applications.
  • To enable targeted, localized, and slow drug release within the GI tract.

Main Methods:

  • Design and fabrication of an OISR utilizing magnetic gradient fields for suction cup actuation.
  • Characterization of the OISR's locomotion behaviors, including scrolling, rolling, tumbling, and swimming.
  • In vitro and in vivo assessments of the OISR's drug carrying and delivery capabilities.

Main Results:

  • The OISR demonstrated dynamically controllable adsorption and separation within simulated GI environments.
  • The robot exhibited versatile locomotion, navigating gastric folds and liquid environments.
  • Successful localized drug delivery to target areas in the GI tract was achieved.

Conclusions:

  • The OISR presents a significant advancement in soft robotics for gastrointestinal applications.
  • Dynamically controllable adhesion and locomotion enable precise navigation and drug delivery.
  • This technology holds potential for localized, slow drug release therapies in the GI tract.