Micropatterning of Streptavidin-Functionalized Magnetic Beads on Glass using Electrostatic Self-Assembly

Author

Sivagnanam, V. ; Sayan, A. ; Vandevyver, C. ; Gijs, M.A.M.

Author_Institution

Ecole Polytech. Fed. de Lausanne, Lausanne

fYear

2007

fDate

10-14 June 2007

Firstpage

525

Lastpage

528

Abstract

We demonstrate a simple and fast method for micropatterning streptavidin-functionalized magnetic beads on glass by combining conventional microfabrication techniques and electrostatic self- assembly. We create micropatterns of a positively-charged aminosilane on a glass surface using the lift-off technique and use them as templates for streptavidin-functionalized magnetic bead patterning through electrostatic self-assembly. Micropatterning of streptavidin-functionalized magnetic beads is realized over large surface areas (4 inch wafer area) with high reproducibility and in a very short processing time (~30 minutes).

Keywords

electrostatic devices; magnetic devices; micromechanical devices; electrostatic self-assembly; glass surface; microfabrication techniques; micropatterning streptavidin-functionalized magnetic beads; positively-charged aminosilane; streptavidin-functionalized magnetic beads; Electrostatic self-assembly; Glass; Joining processes; Magnetic materials; Microelectronics; Micromagnetics; Permanent magnets; Reproducibility of results; Resists; Surface treatment; electrostatic self-assembly; magnetic beads; micropatterned beads; streptavidin;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems Conference, 2007. TRANSDUCERS 2007. International

Conference_Location

Lyon

Print_ISBN

1-4244-0841-5

Type

conf

DOI

10.1109/SENSOR.2007.4300183

Filename

4300183