... Additionally, the ability of MCC to form strong hydrogen bonds (between hydroxyl groups and the surrounding water) is critical to its performance This strong bonding holds the components of the ... CHARACTERIZATION Excipients are vital, functional constituents in a drug formulation and there is a strong emphasis for their consistency in quality Thus, quality and source identification are one ... during compression As this deformation is plastic, permanent bonds are formed This gives rise to strong and dense tablets with minimal occurrence of capping Capillary action of its surface pores...
... the gel, and many of them reported a preference for the gel over condoms Finally, there was a strong desire for the ideal microbicide to enhance sexual pleasure for both partners (Table 4) http://www.aidsrestherapy.com/content/4/1/20 ... knowing, but only 14% (2/14) reported that they would use the gel covertly Support for covert use was stronger among sexually abstinent women, with 39% (5/13) saying that women in general could use the ... made by a woman and man together The need for microbicides Many of the respondents expressed a strong need for microbicides as another option for protection from HIV and potentially other STI...
... discovered redox-dependent dimerization of the chain elongation enzymes of cellulose synthase strongly suggests a modulatory role of this annexin for cellulose synthase Further studies to prove...
... an energy-intensive mechanical process which considerably improves fibre bonding and results in stronger paper The mechanism of refining in improving fibre bonding and paper strength has been related ... similarity of chitosan to cellulose (see Fig 7) and electrostatic attraction are considered to induce a strong interaction between the polymers These interactions and the possibility of chemical reactions ... Paper II, CLSM images), whereas CMC adsorption, when carried out at high ionic strength, caused strong dispersion of the NFC suspension (Fig 14c) The importance of the adsorption method of CMC...
... protein ⁄ water atoms This is one of the most firmly held ascorbic acid molecules, indicating the strong nature of the binding of ascorbic acid to proteins Although ascorbic acid is a small molecule,...
... with mechanical shearing and high-pressure homogenization for nanoscale cellulose fibrils and strong gels Biomacromolecules 2007, 8(6):1934-1941 Saito T, Nishiyama Y, Putaux JL, Vignon M, Isogai...
... 1612 spherical particles have strong SPR band at *400 nm, while Ag nanorods usually show a red-shifted long-axis resonance (longitudinal ... and visible region It is well known that the optical properties of metal nanoparticles depend strongly on the size, shape, interaction between the particles, and the absorbed species on the surface ... attributed to the out-of-plane dipole resonance of nanodiscs and its relative intensity is much stronger than that was theoretically expected [46] Since spherical silver particles may also have...
... interesting matter The purpose of the author's elaborate comparative study is to decide which has the strongest claims to be regarded as the 'standard' method They appear to have a preference for the...
... which are bound by hemicelluloses to form a network embedded in a matrix of pectins [15] This strong but flexible arrangement of complex polysaccharides is important not only for the control ... downregulated in TA(-)hab cells As shown in Figure and Additional file Table S4, qPCR results were strongly correlated with the microarray data Regression analysis of log2 -transformed FC generated...
... dispersed by an ultrasonic treatment (Ultrasonic equipment Thornton, Model USC-1400) Although the strong nitric and sulfuric acids were used in the overall procedure, the effluents turned to be dilute ... taken, but, as reported in the literature, it is difficult to completely dry cellulose due to its strong interaction with water (Morán et al., 2008; Szczesniak, Rachocki, & Tritt-Goc, 2008) All materials ... corresponds to C–O–C asymmetrical bridge stretching As pointed out by Sun, Sun, Su, et al (2004), a strong peak at 1049 cm−1 arises from C–O–C pyranose ring skeletal vibration In Fig it can be seen...
... inhibitor molecules on the metal surface, which forms a coordinate type of bond that explains the strong adsorption of Na-CMC on the mild steel surface Similar interpretations about the adsorption ... the Na-CMC as a corrosion inhibitor depends primarily on sufficient surface coverage with the strongly adsorbed Na-CMC: this polymer contains active hydroxyl groups that could be bridged with...
... silicon bonds and is prone to be etched away But, on the other hand, the crystalline phase - having stronger bonds - is left and keeps growing Therefore, the “etching” and “growth” are the two factors...
... stronger basicity anions such as formate, acetate, or phosphate were suggested as possible surrogate to dissolve cellulose under mild condition.102 For example, the basicity of formate is stronger ... cellulose microfibril in water and [BMIM][Cl], they found that anions interact strongly with hydroxyl groups, whereas cations strongly couple to the side chains and linker oxygen in peel off state In ... [EMIM][Ac], water, and methanol was simulated by Singh and coworkers, who found that [EMIM][Ac] has the strongest interaction with cellulose.126 Recently, the same group reported that there is a conformational...
... help classify the sample into either dilute solutions, entangled solutions, strong gels or weak gels In the case of strong gels or true gels, where molecular rearrangements within the network are ... organogels can be further subdivided into physical and chemical gels Chemical gels arise when strong covalent bonds hold the network together and physical gels when the hydrogen bonds and electrostatic ... be readily destroyed even at very low shear rate and the network structure is destroyed For a strong gel, G' >> G˝, and both are independent of frequency; lower tan δ values (< 0.1) are observed...