Journal article
Imparting magnetic dipole heterogeneity to internalized iron oxide nanoparticles for microorganism swarm control
Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, v 17(3), pp 1-15
17 Mar 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Tetrahymena pyriformis is a single cell eukaryote that can be modified to respond to magnetic fields, a response called magnetotaxis. Naturally, this microorganism cannot respond to magnetic fields, but after modification using iron oxide nanoparticles, cells are magnetized and exhibit a constant magnetic dipole strength. In experiments, a rotating field is applied to cells using a two-dimensional approximate Helmholtz coil system. Using rotating magnetic fields, we characterize discrete cells' swarm swimming which is affected by several factors. The behavior of the cells under these fields is explained in detail. After the field is removed, relatively straight swimming is observed. We also generate increased heterogeneity within a population of cells to improve controllability of a swarm, which is explored in a cell model. By exploiting this straight swimming behavior, we propose a method to control discrete cells utilizing a single global magnetic input. Successful implementation of this swarm control method would enable teams of microrobots to perform a variety of in vitro microscale tasks impossible for single microrobots, such as pushing objects or simultaneous micromanipulation of discrete entities.
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Details
- Title
- Imparting magnetic dipole heterogeneity to internalized iron oxide nanoparticles for microorganism swarm control
- Creators
- Paul Seung Soo Kim - Drexel Univ, Dept Mech Engn & Mech, Philadelphia, PA 19104 USAAaron Becker - Harvard University ,Yan Ou - Rensselaer Polytechnic InstituteAnak Agung Julius - Rensselaer Polytechnic InstituteMin Jun Kim - Drexel University
- Publication Details
- Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, v 17(3), pp 1-15
- Publisher
- Springer Nature
- Number of pages
- 15
- Grant note
- CMMI 1000255; CMMI 1000284 / National Science Foundation; National Science Foundation (NSF) W911F-11-1-0490 / ARO
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- A.J. Drexel Autism Institute; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000355017500003
- Scopus ID
- 2-s2.0-84925061158
- Other Identifier
- 991019173704304721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology