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Integrated holographic system for all-optical manipulation of developing embryos

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Abstract

We demonstrate a system for the combined optical injection and trapping of developing embryos. A Ti:sapphire femtosecond laser in tandem with a spatial light modulator, is used to perform fast and accurate beam-steering and multiplexing. We show successful intracellular delivery of a range of impermeable molecules into individual blastomeres of the annelid Pomatoceros lamarckii embryo by optoinjection, even when the embryo is still enclosed in a chorion. We also demonstrate the ability of the femtosecond laser optoinjection to deliver materials into inner layers of cells in a well-developed embryo. By switching to the continuous wave mode of the Ti:sapphire laser, the same system can be employed to optically trap and orient the 60 μm sized P. lamarckii embryo whilst maintaining its viability. Hence, a complete all-optical manipulation platform is demonstrated paving the way towards single-cell genetic modification and cell lineage mapping in emerging developmental biology model species.
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Original languageEnglish
Pages (from-to)1564-1575
Number of pages11
JournalBiomedical Optics Express
Volume2
Issue number6
DOIs
StatePublished - 1 Jun 2011

    Research areas

  • Multiphoton processes, Lasers, Ultrafast lasers

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