Thermodynamics of solution in liquid crystalline poly(propyleneimine) dendrimers by inverse gas chromatography.

Thermodynamic characteristics of infinitely diluted solutions of n-alkanes and n-alcohols in the columnar and isotropic phases of poly(propyleneimine) dendrimers, generations 1-3 (G1-G3), have been investigated by inverse gas chromatography (IGC). Effects of the dendrimer structure, the chemical nature and molecular size of the non-mesogenes on the ability to get dissolved in the liquid crystalline phases are discussed. The compatibility of the low-molecular compounds with the anisotropic phases is stated to increase with generation G.

[The use of contact thermography for evaluating joint inflammation in rheumatoid arthritis]. / Primenenie kontaktnoi termografii dlia otsenki vospaleniia sustavov pri revmatoidnom artrite.

The paper is concerned with the results of a study of the hand joints in patients with different variants of a course and activity of rheumatoid arthritis by a method of contact liquid crystal thermography. Methods for assessment of thermography taking account of qualitative and quantitative indices were described. They showed correlation with a degree of disease activity, the presence of the rheumatoid factor, extraarticular symptoms and a time-period. Probable pathogenetic mechanisms of occurrence of characteristic thermographic shifts in rheumatoid arthritic patients were discussed.