Bubbles Acting as Micro End‐Effectors for Dexterous Manipulation and Sensing in Aqueous Environment DOI Creative Commons
Zichen Xu, Qingsong Xu

Advanced Intelligent Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 19, 2024

Achieving safe robotic manipulation at the microscopic scale usually requires sophisticated equipment, imposing accessibility difficulty in practice. Inspired by tiny bubbles nature, a new paradigm is proposed for achieving multifunctional and sensing using microbubbles biological application aqueous environments low cost. Without demanding expensive cost of fabrication devices, with various sizes are easy to generate situ, which enabled bubble‐endowed interface interactions. It demonstrated that acting as micro end‐effectors rapidly adaptively realize dexterous microobjects such organisms droplets. They can function microgrippers grasp based on interaction‐induced adhesion act soft micromanipulators safely manipulate fragile objects. Moreover, bubble end‐effector sense perceive designated objects contact measurement microforces or surface textures via shape changes their ultrasoft structures. The reported method successfully integrates grasping, manipulation, functions liquid single microbubble less than 1 mm 3 volume. These nondestructive functionalities showcase promising prospects bubble‐based applications.

Language: Английский

Sub‐Nanogram Resolution Measurement of Inertial Mass and Density Using Magnetic‐Field‐Guided Bubble Microthruster DOI Creative Commons
Leilei Wang,

Minjia Sheng,

Li Chen

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(29)

Published: May 22, 2024

Abstract Artificial micro/nanomotors using active particles hold vast potential in applications such as drug delivery and microfabrication. However, upgrading them to micro/nanorobots capable of performing precise tasks with sophisticated functions remains challenging. Bubble microthruster (BMT) is introduced, a variation the bubble‐driven microrobot, which focuses energy from collapsing microbubble create an inertial impact on nearby target microparticles. Utilizing ultra‐high‐speed imaging, microparticle mass density determined sub‐nanogram resolution based relaxation time characterizing microparticle's transient response. Master curves BMT method are shown be dependent viscosity solution. The BMT, controlled by gamepad magnetic‐field guidance, precisely manipulates microparticles, including bioparticles. Validation involves measuring polystyrene hollow glass microsphere density, assessing mouse embryo densities. technique presents promising chip‐free, real‐time, highly maneuverable strategy that integrates bubble microrobot‐based manipulation bioparticle detection, can facilitate microscale characterizations growth monitoring.

Language: Английский

Citations

3
Coalescence of microbubbles for the double-bubble-powered micromotor in viscous liquids near a confinement boundary DOI Creative Commons
Leilei Wang, Fengchang Yang, Lina Wang

et al.

Flow, Journal Year: 2025, Volume and Issue: 5

Published: Jan. 1, 2025

Abstract As a novel type of catalytic Janus micromotor (JM), double-bubble-powered has distinct propulsion mechanism that is closely associated with the bubble coalescence in viscous liquids and corresponding flow physics. Based on high-speed camera microscopic observation, we provide first experimental results two microbubbles near JM. By performing experiments wide range Ohnesorge numbers, identify universal scaling law coalescence, which shows cross-over at dimensionless time $\tilde{t}$ = 1 from an inertially limited regime linear to inertial 1/2 scaling. Due confinement nearby solid JM, observe asymmetric neck growth find combined effect surface tension viscosity. The detachment can result high speed ∼0.25 m s −1 for We further characterise contributions JM’s displacement propelled by coalescing bubble: counteraction liquid due deformation momentum transfer during detachment. Our findings better understanding dynamics transport micro- nano-scale devices like swimming microrobot bubble-powered microrocket.

Language: Английский

Citations

0
Bubbles Acting as Micro End‐Effectors for Dexterous Manipulation and Sensing in Aqueous Environment DOI Creative Commons
Zichen Xu, Qingsong Xu

Advanced Intelligent Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 19, 2024

Achieving safe robotic manipulation at the microscopic scale usually requires sophisticated equipment, imposing accessibility difficulty in practice. Inspired by tiny bubbles nature, a new paradigm is proposed for achieving multifunctional and sensing using microbubbles biological application aqueous environments low cost. Without demanding expensive cost of fabrication devices, with various sizes are easy to generate situ, which enabled bubble‐endowed interface interactions. It demonstrated that acting as micro end‐effectors rapidly adaptively realize dexterous microobjects such organisms droplets. They can function microgrippers grasp based on interaction‐induced adhesion act soft micromanipulators safely manipulate fragile objects. Moreover, bubble end‐effector sense perceive designated objects contact measurement microforces or surface textures via shape changes their ultrasoft structures. The reported method successfully integrates grasping, manipulation, functions liquid single microbubble less than 1 mm 3 volume. These nondestructive functionalities showcase promising prospects bubble‐based applications.

Language: Английский

Citations

1