Gas focusing flow cytometers are fabricatable employing simple and inexpensive manufacturing techniques. When such cytometers or conventional cytometers are combined with fiber optical light paths and laser diode and semiconductor photodetectors, light weight and handheld, optionally disposable devices...http://www.google.com.au/patents/US20030054558?utm_source=gb-gplus-sharePatent US20030054558 - Flow cytometers and detection system of lesser size
