نتایج جستجو برای: alkyl chain length
تعداد نتایج: 594765 فیلتر نتایج به سال:
A thorough characterization of the structural properties of alkylimidazolium halide ionic liquids (ILs), namely 1-alkyl-3-methylimidazolium bromide ([Cnmim]Br with n = 5, 6, 8, 10) and iodide ([C6mim]I), has been carried out by combining molecular dynamics simulations and EXAFS spectroscopy. The existence of a local order in [Cnmim]Br ILs has been evidenced, with anions and imidazolium head gro...
In this work, thia and selenocarbocyanines with n-alkyl chains of different length, namely with methyl, ethyl, propyl, hexyl and decyl substituents, were studied in homogeneous and heterogeneous media for comparison purposes. For both carbocyanine dyes adsorbed onto microcrystalline cellulose, a remarkable increase in the fluorescence quantum yields and lifetimes were detected, when compared wi...
Liposomes are well recognised for their ability to improve the delivery of a range of drugs. More commonly they are applied for the delivery of water-soluble drugs, but given their structural attributes, they can also be employed as solubilising agents for low solubility drugs as well as drug targeting agents. To further explore the potential of liposomes as solubilising agents, we have investi...
The effect of tetraalkylammonium chlorides (TCnAC for n ) 1, 2, 3, and 4) on the micellar stability of sodium dodecyl sulfate (SDS) solutions was investigated and related to dynamic interfacial properties, such as foamability and foam stability as well as surface viscosity and surface tension. The slow relaxation time τ2, which is directly related to the micellar stability, was determined using...
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