Soft Electroporation Through 3D Hollow Nanoelectrodes.

Area of Science:

• Biotechnology
• Nanotechnology
• Cell Biology

Background:

• Traditional electroporation uses high voltages, often harming cell viability.
• Overcoming the plasma membrane barrier requires significant electric fields.

Purpose of the Study:

• To develop a microfluidic platform for low-voltage cell electroporation.
• To enable selective molecule delivery into cells via electroporation.

Main Methods:

• Fabrication of a microfluidic device using focused ion beam milling.
• Creation of 3D gold hollow nanoelectrodes for electroporation.
• Utilizing nanochannels for communication with an underlying microfluidic chamber.

Main Results:

• Successful cell membrane electroporation achieved at low voltages (1.5-2 V).
• Demonstrated selective delivery of molecules into electroporated cells.
• The platform supports adherent cultured cells on nanoelectrodes.

Conclusions:

• The microfluidic platform offers a gentler, low-voltage alternative for cell electroporation.
• This technology facilitates targeted intracellular molecule delivery.
• The novel nanoelectrode design is key to the platform's efficacy.