X hits on this document

PDF document

In a related approach, we have developed an interferometric method to measure cell-specific - page 6 / 8

17 views

0 shares

0 downloads

0 comments

6 / 8

Nanomirrors of this design were fabricated by e-beam vacuum depositing gold and nickel through a 20 micron polycarbonate shadow mask with mono-disperse, track-etched 10 micron holes.

  • 1

UCLANRF 50kV 103mm x9 00k SE(U) 5/9/06

5 OOum

Fig. 7. SEM image of a 10 micron nickel-gold magnetic nanomirror

2.3 Tracking Nanomirror Motion

We accurately measured the nanometer-scale motion of a prototype nanomirror using a soft gel substrate to simulate the cell surface (Fig. 8). We recorded nanomirror indentation into the gel of up to 40 nm, which varied linearly with magnetic field strength. The gel substrate has a Young’s modulus of approximately 1 MPa, therefore we estimate that we were able to generate approximately 1 nN of force on the nanomiror.

Indentation v. electromagnet current

Net force est. lOe-9 N

abA

O—4Onm

gel

lnn

  • 0

    16A

II

NANOMIRROR" Rare earth magnet particle

on polymer gel imaged by white light interferometer

Fig. 8. Testing force generation by nanomirrors on a gel substrate

Proc. of SPIE Vol. 6293 629301-6

Document info
Document views17
Page views17
Page last viewedMon Dec 05 16:56:29 UTC 2016
Pages8
Paragraphs166
Words1937

Comments