A Liquid Nitrogen Production Unit – Preserving life for life
Posted by Anjum Andrabi on April 30th, 2009
Liquid Nitrogen LN2 offers a effective mechanism of preserving semen at an extremely low temperature (-196 degrees centigrade). It is believed that freezing semen to this temperature would allow its preservation for decades if not centuries. The semen obtained is diluted wth various semen diluters (mainly egg yolk-buffer-glycerol based) and packed in small tubes (0.25 to 0.5 ml). These are then cooled and frozen in stages till they are finally dipped in liquid nitrogen and kept there in canisters. At the time of use they are simply thawed by placing in water bath at 37 degree celcius for 30 seconds.
January 25th, 2010 at 4:24 pm
Why LN2 only use to store semen sample not other method to store the same?
April 9th, 2010 at 1:56 pm
Does anyone know how long the HIV virus can live in semen and still be able to infect a person? If the semen is HIV positive, but dried, say on a carpet, a couch’s upholstery or a piece of paper, can someone still be infected by it? If the dried semen gets wet, is it possible for any virus to be re-animated and be infectious again?
April 29th, 2010 at 8:28 pm
What is the chemical and physical difference between liquid nitrogen and nitrogen? And how would one go about converting one to another?