does it have any different versions?
Yes, microfluidics version
Coulter counter
microfluidics 
who was george p. burdell? He is a fictitious student officially enrolled at Georgia Tech. who created this character? William Edgar "Ed" Smith how is the character associated with space exploration? His name flew engraved on the Prox-1 satellite mission. was he accused of any crime? No, but he got a computer Engineering student arrested and indicted for crime. what did he do in world war ii? Service members listed his name on the flight crew of a B-17 bomber. where is the institution where he was enrolled located? Atlanta, Georgia which discoveries have happened there? Coulter counter how does it help its student develop industry connections? It helps to gain real-world employment experience through four programs. what is the discovery mentioned above about? It is an apparatus for counting and sizing particles suspended in electrolytes.
wiki:13817051
Coulter counter [SEP] Microfluidic versions
The Coulter principle has been applied to lab-on-a-chip approaches to particle detection, using microfluidics approaches that allow much smaller pores to be fabricated than can easily be achieved using the bulk methods used to fabricate traditional Coulter counters. These approaches, known by the generic phrase microfluidic resistive pulse sensing, have allowed the extension of the Coulter principle to the deep sub-micron range, allowing, for example, the direct detection of virus particles in fluid. Saleh and Sohn, and Fraikin et al.,