COMPACT SUBNANOSECOND HIGH VOLTAGE PULSE GENERATION SYSTEM FOR CELL ELECTRO-MANIPULATION

摘要

Disclosed are methods and systems for subnanosecond rise time high voltage (HV) electric pulse delivery to biological loads. The system includes an imaging device and monitoring apparatus used for bio-photonic studies of pulse induced intracellular effects. The system further features a custom fabricated microscope slide having micro-machined electrodes. A printed circuit board to interface the pulse generator to the micro-machined glass slide having the cell solution is disclosed. An low-parasitic electronic setup to interface with avalanche transistor-switched pulse generation system is also disclosed. The pc-board and the slide are configured to match the output impedance of the pulse generator which minimizes reflection back into the pulse generator, and minimizes distortion of the pulse shape and pulse parameters. The pc-board further includes a high bandwidth voltage divider for real-time monitoring of pulses delivered to the cell solutions.

主权项

1. A voltage divider for measuring a sub-nanosecond rise time (<1 ns) high voltage electric pulse comprising:
a plurality of resistors having a metalized film of surface mount 1206 package; a distributed parasitic compensation network comprising at least one capacitor configured to compensate for inherent electrical parasitic effects in the resistors and to extend divider bandwidth; a receiving port configured to receive a high voltage nanosecond electric pulse; and a voltage sensing port configured to put out a voltage measurement of a received electrical pulse in real-time.