Fibre based cellular transfection

X. Tsampoula, K. Taguchi, T. Čižmár, V. Garces-Chavez, N. Ma, S. Mohanty, K. Mohanty, F. Gunn-Moore, K. Dholakia

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Optically assisted transfection is emerging as a powerful and versatile method for the delivery of foreign therapeutic agents to cells at will. In particular the use of ultrashort pulse lasers has proved an important route to transiently permeating the cell membrane through a multiphoton process. Though optical transfection has been gaining wider usage to date, all incarnations of this technique have employed free space light beams. In this paper we demonstrate the first system to use fibre delivery for the optical transfection of cells. We engineer a standard optical fibre to generate an axicon tip with an enhanced intensity of the remote output field that delivers ultrashort (∼ 800 fs) pulses without requiring the fibre to be placed in very close proximity to the cell sample. A theoretical model is also developed in order to predict the light propagation from axicon tipped and bare fibres, in both air and water environments. The model proves to be in good agreement with the experimental findings and can be used to establish the optimum fibre parameters for successful cellular transfection. We readily obtain efficiencies of up to 57 % which are comparable with free space transfection. This advance paves the way for optical transfection of tissue samples and endoscopie embodiments of this technique.

Original languageEnglish
Pages (from-to)17007-17013
Number of pages7
JournalOptics Express
Volume16
Issue number21
DOIs
Publication statusPublished - 2008 Oct 13

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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    Tsampoula, X., Taguchi, K., Čižmár, T., Garces-Chavez, V., Ma, N., Mohanty, S., Mohanty, K., Gunn-Moore, F., & Dholakia, K. (2008). Fibre based cellular transfection. Optics Express, 16(21), 17007-17013. https://doi.org/10.1364/OE.16.017007