3D Nanochannel Array for High-Throughput Cell Manipulation and Electroporation

  • Lingqian Chang*
  • , Stephen Black
  • , Chandani Chitrakar
  • , Mehdi Nouri
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Electroporation has been one of the most commonly used physical methods for gene/drug delivery. Compared to other nonviral counterparts, electroporation enables optimization of delivery efficiency by tuning the electric field applied on cells. Commercial electroporation, however, results in stochastic transfection and significant cellular damage mostly due to its “bulk” environment. In this chapter, we introduce nanoelectroporation (NEP) which has demonstrated living cell transfection in a highly controllable manner. In NEP, the electric field can be precisely focused on a single cell positioned on nanochannels. Safe single-cell electroporation as well as “electrophoretic” molecular delivery can be achieved on the same device. This system achieves significantly higher transfection efficiency and cellular viability than commercial systems. This device is unique in that it can efficiently deliver genetic molecules (e.g., DNAs, RNAs) that exceed 10 kbp in size. The NEP device based on a 3D nanochannel array prototype was fabricated using cleanroom techniques. For achieving precise cell to nanochannel pairing, three on-chip high-throughput manipulation technologies were developed, that is, magnetic tweezers (MT), dielectrophoresis (DEP), and thin-film microfluidics.

Original languageEnglish
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages29-41
Number of pages13
DOIs
StatePublished - 2020

Publication series

NameMethods in Molecular Biology
Volume2050
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Keywords

  • Dielectrophoresis
  • Magnetic tweezers
  • Microfluidics
  • Nanochannel array
  • Nanoelectroporation

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