NDLI: Powerful actuation of magnetized microtools by focused magnetic field for particle sorting in a chip

Content Provider	Springer Nature Link
Author	Yamanishi, Yoko Sakuma, Shinya Onda, Kazuhisa Arai, Fumihito
Copyright Year	2010
Abstract	This paper describes a novel powerful noncontact actuation of a magnetically driven microtool (MMT), achieved by magnetization of the MMT and focusing of the magnetic field in a microfluidic chip for particle sorting. The following are the highlights of this study: (1) an MMT was successfully fabricated from a mixture of neodymium powder and polydimethylsiloxane; the MMT was magnetized such that it acted as an elastic micromagnet with a magnetic flux density that increased by about 100 times after magnetization, and (2) a pair of sharp magnetic needles was fabricated adjacent to a microchannel in a chip by electroplating, in order to focus the magnetic flux density generated by the electromagnetic coils below the biochip; these needles contribute to miniaturization of an actuation module that would enable the integration of multiple functions in the limited area of a chip. FEM analysis of the magnetic flux density around the MMT showed that the magnetic flux density in the setup with the magnetic needles was around 8 times better than that in the setup without the needles. By magnetization, the drive frequency of the MMT improved by about 10 times—from 18 Hz to 180 Hz. We successfully demonstrated the separation of copolymer beads of a particular size in a chip by image sensing.
Starting Page	745
Ending Page	752
Page Count	8
File Format	PDF
ISSN	13872176
Journal	Biomedical Microdevices
Volume Number	12
Issue Number	4
e-ISSN	15728781
Language	English
Publisher	Springer US
Publisher Date	2010-05-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Magnetically driven microtools Sorting Microactuator MEMS Lab-on-a-chip Engineering Fluid Dynamics Nanotechnology Biophysics and Biological Physics Biomedical Engineering
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Molecular Biology Biomedical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A generic label-free microfluidic microobject sorter using a magnetic elastic diverter

A multilevel Lab on chip platform for DNA analysis

A compact and integrated immunoassay with on-chip dispensing and magnetic particle handling

Real-time thickness measurement of biological tissues using a microfabricated magnetically-driven lens actuator

A novel hybrid microrobot using rotational magnetic field for medical applications

Evaluation of magnetic resonance imaging issues for implantable microfabricated magnetic actuators

Computational simulation of a magnetic microactuator for tissue engineering applications

A magnetically actuated anchoring system for a wireless endoscopic capsule

A diffusion-based cyclic particle extractor

Powerful actuation of magnetized microtools by focused magnetic field for particle sorting in a chip

Similar Documents

A generic label-free microfluidic microobject sorter using a magnetic elastic diverter

A multilevel Lab on chip platform for DNA analysis

A compact and integrated immunoassay with on-chip dispensing and magnetic particle handling

Real-time thickness measurement of biological tissues using a microfabricated magnetically-driven lens actuator

A novel hybrid microrobot using rotational magnetic field for medical applications

Evaluation of magnetic resonance imaging issues for implantable microfabricated magnetic actuators

Computational simulation of a magnetic microactuator for tissue engineering applications

A magnetically actuated anchoring system for a wireless endoscopic capsule

A diffusion-based cyclic particle extractor

Powerful actuation of magnetized microtools by focused magnetic field for particle sorting in a chip