Light-Patterned RNA Interference of 3D-Cultured Human Embryonic Stem Cells.

Huang, Xiao; Hu, Qirui; Lai, Yifan; Morales, Demosthenes P; Clegg, Dennis O; Reich, Norbert O · Adv Mater · 2016

basic_science · Level V

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Abstract

A new method of spatially controlled gene regulation in 3D-cultured human embryonic stem cells is developed using hollow gold nanoshells (HGNs) and near-infrared (NIR) light. Targeted cell(s) are discriminated from neighboring cell(s) by focusing NIR light emitted from a two-photon microscope. Irradiation of cells that have internalized HGNs releases surface attached siRNAs and leads to concomitant gene downregulation.

Medical subject headings