Authors:Luzia Patricia Fernandes Carvalho Galvão, Anne Gabriella Dias Santos, Amanda Duarte Gondim, Marcela Nascimento Barbosa, Antonio Souza Araujo, Luiz Di Souza, and Valter José Fernandes Junior
ethyl esters (the chemical name for biodiesel) [ 7 ]. Although the renewable origin and biodegradability of the biodiesel are widely presented as advantage, its decomposition profile confers to itself lower oxidative stability in comparison to mineral
Authors:Humaira Farooqui, Amena Mahmood, Deeba S. Jairajpuri, Faizan Ahmad, and Shakir Ali
irreversible inactivation of proteins. Ligand binding, amino acid composition, hydrophobic interactions, disulfide bonds, salt bridges, and hydrogen bonding influence the protein stability. Recently, boron has been reported to stabilize the structure of heme
Authors:P. Del Vecchio, F. Catanzano, B. de Paola, and G. Barone
The thermodynamic stability of pancreatic ribonuclease B (RNase B), which possesses identical protein structure of pancreatic
ribonuclease A (RNase A), but differs by the presence of a carbohydrate chain attached to Asn 34, was studied by means of
differential scanning calorimetry (DSC) at different pH conditions. The comparison between the two proteins has shown a little
but significant stabilization of RNase B with respect to the unglycosylated one at pH values higher than 7.0. The thermodynamic
analysis reveals the carbohydrate moiety to have a small stabilization effect of 3 kJ mol–1 at pH 8.0 and 63°C on the protein.
A close relation between thermal data and the thermodynamic stability of intermetallic compounds is pointed out. Several series of intermediate phases formed by metals of theA and transition groups with elements of groups IB to IVB have been considered. The dependence of the thermal and thermodynamic stabilities on the atomic size, the electronic configuration, the electronegativity and the melting temperature of the component is discussed.
Authors:Pintu B. Prajapati, Kunjan B. Bodiwala, and Shailesh A. Shah
stability principles and practice , 2nd edn., Marcel Dekker , New York, NY , 1995 .
ICH, Q1A (R2), Stability testing of new drugs and products, International Conference on Harmonization of technical requirements for
A study was made of the thermal stability of epoxy compounds which were unfilled or contained metallic fillers such as aluminium dust, aluminium flakes, powdered bronze, powdered brass and silver flakes. The properties of the compounds were modified by the use of various hardeners.
Authors:J. Delben, A. Delben, K. Miazato, S. Oliveira, and Y. Messaddeq
New fluorindate glass compositions have been investigated in order to improve optical transmission as well as thermal properties.
Chloride inclusion extends transmission of a fluoride matrix to longer wavelength in infrared region. In the present work
thermal parameters of an IZnBS composition, based on InF3, ZnF2, BaF2 and SrF2, with various amounts of alkaline chlorides were investigated by differential scanning calorimetry. The chloride presence
decreased all characteristic temperatures and increased both thermal stability and glass forming ability up to 10% of MCl
content, where M=Li, Na, K and Rb. The presence of NaCl promoted glass phase separation. For samples containing same concentration of NaCl,
this effect is accentuated for increasing the contents of SrF2.