A magnetic micro-manipulator for application of three dimensional forces

Journal Article · Sun Feb 15 04:00:00 EST 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4907709· OSTI ID:22392384

Punyabrahma, P.; Jayanth, G. R. ^[1]

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1. Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012 (India)

Magnetic manipulation finds diverse applications in actuation, characterization, and manipulation of micro- and nano-scale samples. This paper presents the design and development of a novel magnetic micro-manipulator for application of three-dimensional forces on a magnetic micro-bead. A simple analytical model is proposed to obtain the forces of interaction between the magnetic micro-manipulator and a magnetic micro-bead. Subsequently, guidelines are proposed to perform systematic design and analysis of the micro-manipulator. The designed micro-manipulator is fabricated and evaluated. The manipulator is experimentally demonstrated to possess an electrical bandwidth of about 1 MHz. The ability of the micro-manipulator to apply both in-plane and out-of-plane forces is demonstrated by actuating permanent-magnet micro-beads attached to micro-cantilever beams. The deformations of the micro-cantilevers are also employed to calibrate the dependence of in-plane and out-of-plane forces on the position of the micro-bead relative to the micro-manipulator. The experimentally obtained dependences are found to agree well with theory.

• OSTI ID: 22392384
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 86; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
DEFORMATION
DESIGN
MANIPULATORS
MHZ RANGE 01-100
PERMANENT MAGNETS
THREE-DIMENSIONAL CALCULATIONS