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Proceedings Paper

Single cell electroporation using proton beam fabricated biochips
Author(s): S. Homhuan; B. Zhang; F.-S. Sheu; A. A. Bettiol; F. Watt
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Paper Abstract

We report the design and fabrication of a novel single cell electroporation biochip fabricated by the Proton Beam Writing technique (PBW), a new technique capable of direct-writing high-aspect-ratio nano and microstructures. The biochip features nickel micro-electrodes with straight-side walls between which individual cells are positioned. By applying electrical impulses across the electrodes, SYTOX® Green nucleic acid stain is incorporated into mouse neuroblastoma (N2a) cells. When the stain binds with DNA inside the cell nucleus, green fluorescence is observed upon excitation from a halogen lamp. Three parameters; electric field strength, pulse duration, and the number of pulses have been considered and optimized for the single cell electroporation. The results show that our biochip gives successfully electroporated cells . This single cell electroporation system represents a promising method for investigating the introduction of a wide variety of fluorophores, nanoparticles, quantum dots, DNAs and proteins into cells.

Paper Details

Date Published: 13 May 2010
PDF: 9 pages
Proc. SPIE 7716, Micro-Optics 2010, 77160V (13 May 2010); doi: 10.1117/12.850657
Show Author Affiliations
S. Homhuan, National Univ. of Singapore (Singapore)
B. Zhang, National Univ. of Singapore (Singapore)
F.-S. Sheu, National Univ. of Singapore (Singapore)
A. A. Bettiol, National Univ. of Singapore (Singapore)
F. Watt, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 7716:
Micro-Optics 2010
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Hans Zappe, Editor(s)

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