Calorimetric study of microsomal membrane.

Calorimetric study of microsomal membrane.

Differential scanning calorimetric measurements of normal rat liver microsomes reveal a single thermal transition at about 50 degrees. This transition is assigned to irreversible prorein denaturation. There is no evidence for a reversible lipid phase transition at any temperature above 0 degrees, indicating that the microsomal membrane is in teh fluid state under these conditions. Rats fed a fa...

Calorimetric Investigation of Membrane- Anesthetic Interactions

Calorimetric Study of Nematic Prewetting

– We report specific-heat measurements for a series of liquid crystals imbedded in a porous cylindrical geometry. Above the nematic-to-isotropic transition and dependent on nematic width (or chain length), the specific heat shows a small peak. In analogy to known ellipsometry results, the peak is believed to be the signature of a nematic prewetting transition. The behavior of liquid crystals (L...

Calorimetric and computational study of indanones.

Condensed phase standard (p degrees = 0.1 MPa) molar enthalpies of formation for 1-indanone, 2-indanone, and 1,3-indandione were derived from the standard molar enthalpies of combustion, in oxygen, at T = 298.15 K, measured by static bomb combustion calorimetry. The standard molar enthalpies of sublimation for 1-indanone and 2-indanone, at T = 298.15 K, were measured both by correlation-gas chr...

A microsomal membrane alteration following ethionine intoxication.

At both 4 and 24 hr after the administration of ethionine, female rats displayed a significant reduction in the RNA:pro tein ratio of liver microsomes. In this respect, ethionine behaved like many other hepatocarcinogens which induce ribosomal separation from the rough endoplasmic reticulum. This separation is usually brought about by the membrane, rather than ribosomal lesions. Using the disul...