English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Selective actuation and tomographic imaging of swarming magnetite nanoparticles

Bente, K., Bakenecker, A. C., von Gladiss, A., Bachmann, F., Cēbers, A., Buzug, T. M., et al. (2021). Selective actuation and tomographic imaging of swarming magnetite nanoparticles. ACS Applied Nano Materials, 4(7), 6752-6759. doi:10.1021/acsanm.1c00768.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
Article.pdf (Publisher version), 4MB
Name:
Article.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-

Locators

show

Creators

show
hide
 Creators:
Bente, Klaas1, Author              
Bakenecker, Anna C., Author
von Gladiss, Anselm, Author
Bachmann, Felix1, Author              
Cēbers, Andrejs, Author
Buzug, Thorsten M., Author
Faivre, Damien1, Author              
Affiliations:
1Damien Faivre, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863290              

Content

show
hide
Free keywords: collective effects, magnetic steering, nanobots, active matter, magnetic particle imaging, MPI, nanorobotics
 Abstract: Micro- and nanomotors have seen substantial progress in recent years for biomedical applications. However, three grand challenges remain: (i) high velocities to overcome the blood flow, (ii) spatially selective control to enable complex navigation, and (iii) integration of a medical, tomographic real-time imaging method to acquire feedback information. Here, we report the combination of active magnetic matter and a medical imaging technique, namely magnetic particle imaging (MPI), which addresses these needs. We synthesize ~200 nm magnetic nanoparticles and observe a macroscopic, collective effect in a homogeneous magnetic field with a rotating field vector. The nanoparticles form a millimeter-sized cloud and reach speeds of 8 mm s–1. This cloud is imaged and selectively steered with an MPI scanner. Our experimental results are supported by a model that highlights the role of the Mason number, the particle’s volume fraction, and the height of the cloud. The successful introduction of a fast swarm of microscopic units and the spatial selectivity of the technique suggest an effective approach to translate the use of micro- and nanobots into a clinical application.

Details

show
hide
Language(s): eng - English
 Dates: 2021-07-122021
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1021/acsanm.1c00768
BibTex Citekey: doi:10.1021/acsanm.1c00768
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: ACS Applied Nano Materials
  Abbreviation : ACS Appl. Nano Mater.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, D.C., USA : American Chemical Society
Pages: - Volume / Issue: 4 (7) Sequence Number: - Start / End Page: 6752 - 6759 Identifier: ISSN: 2574-0970