Results 101 to 110 of about 2,023,420 (177)

Development of a novel omnidirectional microrobot

open access: yes, 2003
The paper proposes a novel high resolution piezo-actuated mobile microrobot. Based on deformations of piezoelectric tubes, the microrobot can achieve translation in any direction on the plane and a rotation around its center Different from other micro ...
Zhang JB(张江波)   +2 more
core  

Multi-material and multi-module freestanding microrobot for cargo transportation

open access: yesInternational Journal of Extreme Manufacturing
Microrobots play an essential role in early diagnosis and precision medicine with the increasing demands for controllability in bio-medicine and micromanipulation, which can complete the pre-designed behavior under external stimulation.
Jian-Miao Zhang   +7 more
doaj   +1 more source

A Hybrid Magnetic Actuation System for Single‐Input Multistates Stabilization: Application to pH‐Responsive Drug Delivery

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents an integrated proof‐of‐concept robotic platform for targeted delivery applications. A hybrid magnetic actuation system achieves single‐input (z) multistate stabilization (x, y, ϕ, and θ) for precise capsule transport with submillimeter positioning accuracy.
Sejun Park   +6 more
wiley   +1 more source

Magnetic Microrobots for In Vivo Cargo Delivery: A Review

open access: yesMicromachines
Magnetic microrobots, with their small size and agile maneuverability, are well-suited for navigating the intricate and confined spaces within the human body. In vivo cargo delivery within the context of microrobotics involves the use of microrobots to transport and administer drugs and cells directly to the targeted regions within a living organism ...
Jialin Lin, Qingzheng Cong, Dandan Zhang
openaire   +3 more sources

Fast, Strong Capillary Liquid Metal Muscles

open access: yesAdvanced Intelligent Systems, EarlyView.
Capillary liquid metal muscles (CLMMs) harness the exceptionally high and electrochemically tunable surface tension of gallium‐based liquid metals (e.g., EGaIn) to generate mechanical work. Confinement within microchannels maximizes surface‐energy conversion, enabling high force, ultrafast response (<25 ms), low‐voltage operation (<10 V), and ...
Tim Cole   +8 more
wiley   +1 more source

Magnetic actuation of a cylindrical microrobot using time-delay-estimation closed-loop control: modeling and experiments

open access: yes, 2014
Accurate control systems are critical for safe and practical utilization of microrobots for in vivo operations. There exist uncertainties from the microrobot dynamics and nonlinearities from the magnetic driving force in the electromagnetic in vivo ...
Choi, Hongsoo   +6 more
core   +1 more source

A Magnetic Wheel Structure for an Omni-directional Microrobot to Limit Slip Effect

open access: yesInternational Journal of Advanced Robotic Systems, 2010
To fulfill the microassembly work successfully, an omnidirectional mobile microrobot is presented. To finish the micron size task, the positioning precision of the robot is highly important.
Yiliang Jin, Jiapin Chen, Zhenbo Li
doaj  

A flexible automated magnetic microrobot assembly system

open access: yesJournal of Micro and Bio Robotics
This paper presents a novel system for flexible automated fabrication of microrobots with embedded permanent magnets, and for the loading of liquid therapeutic drugs and sealing with thermally sensitive wax. Microrobots featuring embedded magnets are more controllable and observable, and are capable of tasks requiring higher forces.
Shindell, Oliver J.   +2 more
openaire   +2 more sources

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

open access: yesAdvanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu   +2 more
wiley   +1 more source

Control of Self-Winding Microrobot Using an Electromagnetic Drive System: Integration of Movable Electromagnetic Coil and Permanent Magnet

open access: yesMicromachines
Achieving precise control over the motion position and attitude direction of magnetic microrobots remains a challenging task in the realm of microrobotics.
Hao Li   +4 more
doaj   +1 more source

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