A5101941720- Micro and Nano Robotics
- Gastrointestinal Bleeding Diagnosis and Treatment
- Molecular Communication and Nanonetworks
- Modular Robots and Swarm Intelligence
- Microfluidic and Bio-sensing Technologies
- Soft Robotics and Applications
- Wireless Power Transfer Systems
- Aerodynamics and Fluid Dynamics Research
- Lattice Boltzmann Simulation Studies
- Fluid Dynamics and Vibration Analysis
- Characterization and Applications of Magnetic Nanoparticles
- FinTech, Crowdfunding, Digital Finance
- Electrowetting and Microfluidic Technologies
- Pickering emulsions and particle stabilization
- Energy Harvesting in Wireless Networks
- Genetic and Kidney Cyst Diseases
- Gastrointestinal disorders and treatments
- Orbital Angular Momentum in Optics
Beihang University
2013-2023
Beijing Advanced Sciences and Innovation Center
2022
The University of Tokyo
2022
Drug delivery systems with high-targeted doses can minimize excipients, reduce side effects, and improve efficacy. Human blood circulation is a complex circulatory system, the motion control of microrobots in static flow field vitro completely different from vivo. How to achieve precise counterflow for targeted drug without vascular blockage immune rejection biggest challenge micro-nano robots. Here, we propose method that enables vortex-like paramagnetic nanoparticle swarm (VPNS) move...
Abstract Border‐nearing microrobots with self‐propelling and navigating capabilities have promising applications in micromanipulation bioengineering, because they can stimulate the surrounding fluid flow for object transportation. However, ensuring biosafety of is a concurrent challenge bioengineering applications. Here, macrophage template‐based (cell robots) that be controlled individually or chain‐like swarms are proposed, which transport various objects. The cell robots constructed using...
We demonstrate a controllable bubble-based acoustofluidic device that enables mode-switchable manipulation of micro-objects, including transportation, rotation, and revolution.
Magnetic soft robots have the potential to directly access areas of human body that are currently inaccessible or difficult reach for minimally invasive medical operations drug delivery. Recently, ferrofluids containing magnetic nanoparticles with unique deformation properties been extensively investigated. In this study, a ferrofluid robot targeted delivery is proposed, while control implemented in 3D vascular model. Four-solenoid systems visual feedback designed achieve said...
In view of the magnetically actuated capsule robot applications in diagnoses human stomach disease, challenges that are associated with degrees-of-freedom (DOF), environmental adaptability, and size entire system must be addressed. this study, a new electromagnetic coil is based on adaptive magnetic levitation presented; it mainly composed an independent orientation control coil. The designed to perform motion capsule, including 3-DOF levitating translational control, pitch yaw levitation....
Micro-nano robots with low invasiveness and high drug utilization are considered a promising approach for tumor therapy. However, individual micro-nano limited in terms of motility, drug-carrying capacity, environmental adaptability. This study proposes clustering control strategy magnetic nanoparticles that enables loose particles to be organized into vortex-like swarms chain-like ones rapid transitions across them. The swarm microrobots can precisely navigated through visual feedback...
Magnetic driving is an excellent non-contact method that can penetrate through the human and biological tissues without any damage. Also, micro-nano robots are expected to enter into body, which will bring about revolutionary development in robotics. Here we propose octopus-like soft robot be used biomedical engineering fields future. Firstly, establish a magnetic control system, uses minimum number of coils. The system respond quickly with high precision propel 3D space utilizing coupled...
In this paper, we present a magnetized cell-robot using macrophages as templates, which can be controlled under strong gradient magnetic field, to approach and kill cancer cells in both vitro vivo environment. Firstly, establish control system only four coils generate field up 4.14 T/m utilizing the coupled contributed by multiple electromagnets acting concert. Most importantly, is based on macrophage proposed, transported vicinity of precisely field. Then will actively phagocytose...
Many incredible clusters of emergent behaviors exist in natural organisms, and these colonies organisms exhibit a vigorous ability to adapt complex variable environments. Nowadays several artificial microrobot swarms have been developed, but the majority them usually only one single rigid structure which lacks adaptability Inspired by clustering behavior wild herring, this paper develops strategy trigger loose magnetic nanoparticles form vortex-shaped “flexible” clusters. By programming...
The development and popularization of various medical robots provide an approach for minimally invasive interventional diagnosis treatment. Here we present a square coil platform with more uniformed magnetic field, higher flexibility control easy to assemble. In order realize the motion capsule robot in vivo, permanent magnet has been put robot, by adjusting space field through external electromagnetic system, could be controlled 3-D 5 degree freedom, comparing traditional circular coils...
Endoscopy is an effective tool for early diagnosis and treatment of gastrointestinal diseases. An increasing number medical institutions prefer wireless capsule endoscopy (WCE) rather than traditional endoscopies. However, the that launched in current commercial market have disadvantages inability active locomotion low data transmission rate. This paper presents a 6 square coils electromagnetic control system with Wi-Fi based video module WCE. By adjusting driven these coils, device able to...
Micro-nano-robots are considered to be a promising platform for drug delivery in biological organisms, but there still urgent technical problems biocompatibility and degradability of 3D-printed-based micro-robots that need solved. Therefore, this paper, we design magnetized bio-hybrid robot, which uses mouse macrophages as carriers, allowed it swallow Fe <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O...
Compared with traditional gastroscope, capsule robot has many advantages, such as painlessness, fast examination and convenient operation. It a wide application prospect in the diagnosis treatment of gastrointestinal diseases. However, current commercial market some disadvantages, difficult control, low degree freedom motion, slow image transmission speed so on. This paper proposes magnetic control system five degrees based on square Helmholtz coils gradient field. The smaller volume, lower...
The vortex shedding modes of flow past two circular cylinders in side-by-side arrangement are investigated numerically this paper. simulations carried out using a ghost cell immersed boundary method which imposes the condition through reconstruction local velocity field near boundary. two-dimensional unsteady incompressible Navier-Stokes equations solved an implicit fractional step based on cell-center, collocated primary variables. Vorticity contours around and force time histories...
In this work, a ghost cell immersed boundary method is applied to the numerical simulation of uniform flows over circular cylinder and two cylinders in tandem arrangement. The Navier-Stokes equations are solved using an implicit fractional step employed on collocated arrangement variables. Immersed permit use structured Cartesian meshes simulate involving complex boundaries. shedding vortices flow interference between investigated numerically. calculations validated against experimental...
Capsule robots are developing rapidly. The capsule perform non-invasive gastrointestinal endoscopy on patients. With the application of artificial intelligence in robot, images collected by can be read efficiently and accurately offline. However, since previous capsules either lacked wireless data transmission or only used Bluetooth transmission, real-time interaction was not yet possible. It is very helpful for diagnosis patient's condition. due to lack interaction, it still an early cannot...