Title
Molecular versus tissue liquids : an atomic length? Molecular versus tissue liquids : an atomic length?
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
London ,
Subject
Physics
Chemistry
Source (journal)
Physics and chemistry of liquids. - London
Volume/pages
49(2011) :6 , p. 830-834
ISSN
0031-9104
ISI
000299991600013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
For the monatomic classical liquids like Ar, Kr and Xe, it has long been known that near the triple point, the product of surface tension sigma and isothermal compressibility K-T, having dimensions of length, is less than 1 angstrom. More recently, a similar result has been established from experimental data on some 20 organic liquids. The purpose of this article is to raise a possibly interesting question with experimentalists working on complex molecular liquids as well as biological cell assemblies. Thus, we first draw attention to measurements of the compressibility of some 25 proteins in water. Can complementary measurements of surface tension be carried out on at least some of these systems? And is the product sigma K-T a length of order of an angstrom or so? Second, we note existing measurements of surface tension sigma on five embryonic tissues and ask essentially the same question as to whether or not the product sigma K-T is of atomic dimensions. Finally, via a biopsy of a tumour which might provide material to yield an approximately spherical aggregate of the cancerous cells, is sigma K-T measurable and if so, is this product dependent on the presence of the tumour?
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