Results 81 to 90 of about 3,588 (253)

Human‐Scale Rotating Magnetic Field Delivery With Permanent Magnets Under Anatomic and Robotic Constraints

open access: yesAdvanced Robotics Research, EarlyView.
Rotating magnetic fields (RMFs) are widely used for microrobot propulsion and control. We show that RMF generation with permanent magnets is mechanically feasible for many limb and intracranial applications but becomes constrained for thoracic targets.
Tuan‐Anh Le   +4 more
wiley   +1 more source

A Mobile Self-reconfigurable Microrobot with Power and Communication Relays

open access: yesInternational Journal of Advanced Robotic Systems, 2011
A modular mobile self-reconfigurable microrobot is developed to enlarge the whole surveillance range of mobile microrobot. The microrobot is designed as differential driven vehicle equipped with a passive universal connector with autonomic engagement ...
Dawei Zhang   +3 more
doaj  

Improving guidewire-mediated steerability of a magnetically actuated flexible microrobot

open access: yesMicro and Nano Systems Letters, 2018
Here, we develop a flexible microrobot enhancing the steerability of a conventional guidewire. To improve steerability, a microrobot is attached to the tip of the guidewire and guided using an external magnetic field generated by an electromagnetic coil ...
Sungwoong Jeon   +9 more
doaj   +1 more source

Design and realization of a wireless drive microrobot

open access: yes, 2004
With the increasing of micro parts, much attention has been paid to development of micro devices, which can handle those micro parts. We present a novel wireless microrobot based on the deformation of piezoelectric.
Tan DL(谈大龙)   +3 more
core  

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

open access: yesAdvanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li   +8 more
wiley   +1 more source

PRECISE POSITIONING OF DIAMAGNETICALLY LEVITATED MICROROBOT

open access: yes, 2017
: In this article, we present a microrobot manipulation technique with high precision positional ability to move in a fluid environment with diamagnetic levitation. Untethered manipulation of microrobots by means of externally applied magnetic forces has
Anil Demircali   +11 more
core   +1 more source

Vision based platform for drug delivery microrobot [PDF]

open access: yes, 2021
In recent decades, permanent magnet end-effectors have been used in several fields and applications due to their unique ability to remotely control any magnetized object’s positions via delivering the magnetic flux through space and non-magnetic ...
Abdelhamid Hossameldin, Ahmed Wael Ahmed Zaki
core  

Performance Estimation and Ex Vivo Validation of Untethered Magnetic Robots in Soft Tissue

open access: yesAdvanced Science, EarlyView.
This study presents an empirical model that quantitatively predicts the step‐out frequency of screw‐type untethered magnetic robots (UMRs) in soft viscoelastic environments, including ex vivo brain tissue. By integrating key parameters into a dimensionless framework, the model enables estimation of robot performance across a range of biological ...
Leendert‐Jan W. Ligtenberg   +19 more
wiley   +1 more source

Pollen tube navigation can inspire microrobot design

open access: yes, 2017
Plant pollen tube features, including directional control for cargo delivery, inspire microrobot design.
Tetsuya Higashiyama
core   +1 more source

Manipulating Microrobots Using Balanced Magnetic and Buoyancy Forces

open access: yesMicromachines, 2018
We present a novel method for the three-dimensional (3D) control of microrobots within a microfluidic chip. The microrobot body contains a hollow space, producing buoyancy that allows it to float in a microfluidic environment.
Lin Feng   +4 more
doaj   +1 more source

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