MadSci Network: Molecular Biology

Subject: can big molecules like proteins or dna (200bp etc) evaporate?

Date: Tue Feb 28 12:40:28 2006
Posted by haldun
Grade level: grad (science) School: ankara university
City: ankara State/Province: No state entered. Country: turkey
Area of science: Molecular Biology
ID: 1141155628.Mb

as i know not only small molecules, but also big molecules like oil can 
evaporate (this is also what i experienced in my kitchen). of course 
evaporation should decrease drastically, with increasing molecular weight. but 
biomolecules like 200 bp dna may be 200 times bigger that a tri-glyceride 
molecule. can it still evaporate in very very small quantities? if it does, 
how can its vapor pressure be calculated? i am a molecular biologist and this 
is something i experienced through a contamination problem in pcr. the only 
explanation to my contamination is the evoporation of dna molecules at high 
temparatures like 95C.

Re: can big molecules like proteins or dna (200bp etc) evaporate?

Current Queue | Current Queue for Molecular Biology | Molecular Biology archives

Try the links in the MadSci Library for more information on Molecular Biology.

MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci

MadSci Network,
© 1995-2006. All rights reserved.