A rigorous theoretical connection between the polarizability spectral density obtained from optical Kerr effect ~OKE! measurement with the correlation function describing solvent-induced optical dephasing detected in photon echo measurements is given. The experimentally obtained spectral density has a more reasonable physical basis than model correlation function descriptions of solvent fluctua...

Zero-field-cooling and field-cooling FC measurements were performed on ferrofluids of cobalt magnetic nanoparticles MNPs in various organic solvent. Two peaks, one broad peak corresponding to the blocking transition TB , and one sharp peak corresponding to the melting of the solvent TM , were observed. Furthermore, for a given MNP size, when the blocking and melting transitions were superposed ...

Recent experiments on protein-folding dynamics have revealed strong evidence for internal friction effects. That is, observed relaxation times are not simply proportional to the solvent viscosity as might be expected if the solvent were the only source of friction. However, a molecular interpretation of this remarkable phenomenon is currently lacking. Here, we use all-atom simulations of peptid...

Recently we reported a combined QM/MM approach to estimate condensed-phase values of atomic polarizabilities for use in (bio)molecular simulation. The setup relies on a MM treatment of the solvent when determining atomic polarizabilities to describe the response of a QM described solute to its external electric field. In this work, we study the effect of using alternative descriptions of the so...

Weutilize neutron reflectometry (NR) to probe the amount of residual solvent in thinpolystyrene (PS) and poly(methyl methacrylate) (PMMA) films spin-coated from deuterated toluene solutions onto silicon substrates.The effect of thermal treatment at temperatures belowandabove the glass transitionofPSandPMMA are examined to determine how these treatments affect the residual solvent. The parameter...

The effect of solvents on photophysical properties namely absorption transition energy, fluorescence transition energy and stoke’s shift of a ketocyanine dye 2,5-di[(E)-1-(4 aminophenyl) methylidine]-1cyclopentanone (2,5-APMC) is analyzed using Lippert-Mataga bulk polarity function, Reichardt’s microscopic solvent polarity parameter and Kamlet’s multiple linear regression approach. The spectral...

We analyze the problem of the helix-coil transition in explicit solvents analytically by using spin-based models incorporating two different mechanisms of solvent action: explicit solvent action through the formation of solvent-polymer hydrogen bonds that can compete with the intrinsic intra-polymer hydrogen bonded configurations (competing interactions) and implicit solvent action, where the s...

The solvent evaporation method on the structural changes and surface chemistry of the cathode and the effect of electrochemical performance of Li1.0Ni0.8Co0.15Mn0.05O2 (NCM) has been investigated. After dissolving of Li residuals using minimum content of solvent in order to minimize the damage of pristine material and the evaporation time, the solvent was evaporated without filtering and remain...

Cinnamon is the bark the cinnamomi cassia that exhibits many medical properties such as anti-cancer effect and anti-diabetic effect. Moreover, because of its antioxidant activity; it can be used in food industries. Many studies have already reported biological and chemical properties of the cinnamon extracted essential oil such as their antimicrobial, antifungal, antimosquito, free radical scav...