Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic of the experimental set-up: A sharp tip needle electrode is connected to an AC waveform generator and a ground electrode on the glass slide. The needle is suspended 4 mm above a liquid sample that is held in a chamber that is 9 mm in diameter and 2.5 mm deep. (a) An image of the glass slide with a square electrode as the ground electrode. (b) An image of the glass slide with secondary electrodes fabricated at the center of the ground electrode.
