Cytosolic Delivery of Functional Proteins In Vitro through Tunable Gigahertz Acoustics.

ACS Applied Materials & Interfaces
Shuting PanVincent M Rotello

Abstract

Intracellular delivery is essential to therapeutic applications such as genome engineering and disease diagnosis. Current methods lack simple, noninvasive strategies and are often hindered by long incubation time or high toxicity. Hydrodynamic approaches offer rapid and controllable delivery of small molecules, but thus far have not been demonstrated for delivering functional proteins. In this work, we developed a robust hydrodynamic approach based on gigahertz (GHz) acoustics to achieve rapid and noninvasive cytosolic delivery of biologically active proteins. With this method, GHz-based acoustic devices trigger oscillations through a liquid medium (acoustic streaming), generating shear stress on the cell membrane and inducing transient nanoporation. This mechanical effect enhances membrane permeability and enables cytosolic access to cationic proteins without disturbing their bioactivity. We evaluated the versatility of this approach through the delivery of cationic fluorescent proteins to a range of cell lines, all of which displayed equally efficient delivery speed (≤20 min). Delivery of multiple enzymatically active proteins with functionality related to apoptosis or genetic recombination further demonstrated the relevance ...Continue Reading

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Citations

Feb 13, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Sanjana GopalakrishnanVincent M Rotello
Sep 4, 2021·Lab on a Chip·Shu-Kun ZhaoYi Yang

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