Micro‐ and nanorobots from magnetic particles: Fabrication, control, and applications DOI Creative Commons

Xiaoyu Wang,

Tao Yang, Quan Li

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: 2(4)

Published: Nov. 1, 2024

Abstract Magnetic microparticles (MPs) and nanoparticles (NPs) have long been used as ideal miniaturized delivery detection platforms. Their use micro‐ nanorobots (MNRs) is also emerging in the recent years with help of more dedicated external magnetic field manipulations. In this review, we summarize research progress on nanoparticle (MNP)‐based MNRs. First, fabrication from either template‐assisted NP doping methods or directly synthesized MPs summarized. The driving torque sources for both types MNRs are analyzed, their propulsion control under low Reynolds number flows discussed by evaluating symmetry breaking mechanisms interparticle interactions. Subsequently, these scientific models, bioimaging agents, active delivery, treatment platforms (drug cell sterilization), biomedical diagnostics has reviewed. Finally, perspective MNPs‐based was outlined, including challenges future directions.

Language: Английский

Nano-/Microrobots for Environmental Remediation in the Eyes of Nanoarchitectonics: DOI Creative Commons
Anna Jančík Procházková, Katsuhiko Ariga

Research, Journal Year: 2025, Volume and Issue: 8

Published: Jan. 1, 2025

Nano-/microrobots have been demonstrated as an efficient solution for environmental remediation. Their strength lies in their propulsion abilities that allow active “on-the-fly” operation, such pollutant detection, capture, transport, degradation, and disruption. Another advantage is versatility, which allows the engineering of highly functional solutions a specific application. However, latter can bring complexity to applications; versatility dimensionality, morphology, materials, surface decorations, other modifications has crucial effect on resulting abilities, compatibility with environment, overall functionality. Synergy between decorations its projection functionality object nanoarchitectonics. Here, we scrutinize nano-/microrobots eyes nanoarchitectonics: list general concepts help assess synergy limitations individual procedures fabrication processes operation at macroscale. The nanoarchitectonics approached from microscopic level, focusing dimensionality through nanoscopic evaluating influence decoration nanoparticles quantum dots, moving molecular single-atomic level very fine tuning presented review aims lay provide overview advanced nano-/microrobot remediation beyond.

Language: Английский

Citations

2
Metareview: a survey of active matter reviews DOI Creative Commons
Michael te Vrugt, Raphael Wittkowski

The European Physical Journal E, Journal Year: 2025, Volume and Issue: 48(2)

Published: Feb. 1, 2025

In the past years, amount of research on active matter has grown extremely rapidly, a fact that is reflected in particular by existence more than 1000 reviews this topic. Moreover, field become very diverse, ranging from theoretical studies statistical mechanics particles to applied work medical applications microrobots and biological systems artificial swimmers. This makes it difficult get an overview over as whole. Here, we provide such form metareview article surveys existing review articles books matter. Thereby, provides useful starting point for finding literature about specific

Language: Английский

Citations

2
Swarming Magnetic Fe 3 O 4 @Polydopamine-Tannic Acid Nanorobots: Integrating Antibiotic-Free Superficial Photothermal and Deep Chemical Strategies for Targeted Bacterial Elimination DOI Creative Commons

Luying Si,

Shuming Zhang,

Huiru Guo

et al.

Research, Journal Year: 2024, Volume and Issue: 7

Published: Jan. 1, 2024

Micro/nanorobots (MNRs) are envisioned to provide revolutionary changes therapies for infectious diseases as they can deliver various antibacterial agents or energies many hard-to-reach infection sites. However, existing MNRs face substantial challenges in addressing complex infections that progress from superficial deep tissues. Here, we develop swarming magnetic Fe 3 O 4 @polydopamine-tannic acid nanorobots (Fe @PDA-TA NRs) capable of performing targeted bacteria elimination complicated bacterial by integrating photothermal and chemical strategies. The nanoparticles (NPs), serving building blocks the nanorobots, fabricated situ polymerization dopamine followed TA adhesion. When driven alternating fields, NPs assemble into large energetic microswarms continuously flowing forward with tunable velocity. Thus, NRs be navigated achieve rapid broad coverage a area distance rapidly eradicate residing there upon exposure near-infrared (NIR) light due their efficient conversion. Additionally, concentrate at sites traversing through confined, narrow, tortuous passages, exerting sustained action surface TA-induced easy cell adhesion subsequent membrane destruction. Therefore, show great potential superficial-to-deep infections. This study may inspire development future therapeutic microsystems multifunction synergies, task flexibility, high efficiency.

Language: Английский

Citations

11
Signalling and social learning in swarms of robots DOI Creative Commons
Léo Cazenille, Maxime Toquebiau,

Nicolas Lobato‐Dauzier

et al.

Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, Journal Year: 2025, Volume and Issue: 383(2289)

Published: Jan. 30, 2025

This paper investigates the role of communication in improving coordination within robot swarms, focusing on a paradigm where learning and execution occur simultaneously decentralized manner. We highlight can play addressing credit assignment problem (individual contribution to overall performance), how it be influenced by it. propose taxonomy existing future works communication, information selection physical abstraction as principal axes for classification: from low-level lossless compression with raw signal extraction processing high-level lossy structured models. The reviews current research evolutionary robotics, multi-agent (deep) reinforcement learning, language models biophysics outline challenges opportunities collective robots that continuously learn one another through local message exchanges, illustrating form social learning.This article is part theme issue 'The road forward swarm systems'.

Language: Английский

Citations

1
Active microgel particle swarms for intrabronchial targeted delivery DOI Creative Commons
Hui Chen, Junhui Law, Yibin Wang

et al.

Science Advances, Journal Year: 2025, Volume and Issue: 11(11)

Published: March 12, 2025

Intrabronchial delivery of therapeutic agents is critical to the treatment respiratory diseases. Targeted demanded because off-target accumulation drugs in normal lung tissues caused by inhalation and limited motion dexterity clinical bronchoscopes tortuous bronchial trees. Herein, we developed microrobotic swarms consisting magnetic hydrogel microparticles achieve intrabronchial targeted delivery. Under programmed fields, microgel particle performed controllable locomotion adaptative structure reconfiguration air-filled environments. The were further integrated with imaging contrast for precise tracking under x-ray fluoroscopy computed tomography imaging. Magnetic navigation an ex vivo phantom into deep branches trees achieved. on-demand avoiding particles from entering nontarget bronchi tilted through climbing validated.

Language: Английский

Citations

1
Bio‐Integrated Microrobots: Fabrication, Actuation and Biomedical Applications DOI Creative Commons
Huaping Wang, Jiaxin Liu, Ru‐xin Nie

et al.

Published: March 13, 2025

ABSTRACT Bio‐integrated microrobots (BIMs), which are fabricated with biofriendly materials, biological units (e.g. cells or biomolecules), cell‐material hybrids have emerged as a promising technology for minimally invasive biomedicine. The diminutive size and flexible structures enable BIMs to navigate within narrow, deep, challenging‐to‐reach in vivo regions, performing biopsy, diagnostic, drug delivery, therapeutic functions minimal invasiveness. However, the clinical deployment of is highly orchestrated task that requires consideration material properties, structural design, locomotion, observation, outcomes, side effects on tissues, etc. In this review, we review discuss latest advances bio‐integrated microrobot domain, evaluating various methods associated fabrication, actuation, implementation biomedical BIMs. By comparing advantages shortcomings these techniques, highlights challenges future trends intelligent microrobots, huge potential

Language: Английский

Citations

1
Advanced Materials Research at CUHK: From Biomedicine to Electronics and Beyond DOI
Chuanbin Mao

Advanced Materials, Journal Year: 2025, Volume and Issue: 37(2)

Published: Jan. 1, 2025

This special issue spans a diverse array of topics, including nanomedicine, tissue engineering, regenerative medicine, organs-on-chips, biosensing, soft robotics, smart devices, nanofabrication, energy saving and storage, catalysis, spintronics, electronics, neuromorphic computing. It showcases the breadth depth advanced materials research at Chinese University Hong Kong (CUHK), highlighting innovation, collaboration, excellence CUHK's scientists.

Language: Английский

Citations

0
Active exploration and reconstruction of vascular networks using microrobot swarms DOI
Xingzhou Du, Yibin Wang, Junhui Law

et al.

Nature Machine Intelligence, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

Citations

0
Intelligent behaviors of hydrogel and liquid crystalline polymer aggregations and collectives: a mini-review DOI Open Access

D. P. Chen,

Jiaqing He, Bohan Zhu

et al.

Microstructures, Journal Year: 2025, Volume and Issue: 5(3)

Published: April 17, 2025

Responsive materials exhibit intelligence through their intrinsic ability to autonomously sense and respond external stimuli. These have the potential form robotic swarms characterized by high flexibility, robust scalability, fault tolerance. Among various responsive materials, hydrogels liquid crystalline polymers are particularly advantageous due capability for reversible morphological transformations in response stimuli, including light, heat, electric field, magnetic field. While numerous reviews summarized swarm robotics, a comprehensive analysis of aggregation behaviors hydrogel- crystal-based polymer systems remains lacking. This review addresses this gap examining (sub)millimeter-scale robots, fundamental mechanical properties following assembly, respective advantages limitations these robotics. Additionally, future research directions emerging field discussed.

Language: Английский

Citations

0
Cluster formation in active emulsion DOI
Boris Kichatov, Alexey Korshunov, Vladimir Sudakov

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

An active emulsion consists of self-propelled droplets that are dispersed in another immiscible liquid. Under certain conditions, droplet clusters may form such a system. This study analyzes the process cluster formation an octane-in-water activated by ammonia. The movement is due to emergence Marangoni flow on surface droplets. It has been found formed when average velocity less than critical value. existence fact rate attachment proportional their and detachment from square velocity. At supercritical velocities, exceeds attachment. depends density increases as decreases.

Language: Английский

Citations

0