@article{VargasRuizSchulreichKostevicetal.2016, author = {Vargas-Ruiz, Salome and Schulreich, Christoph and Kostevic, Angelika and Tiersch, Brigitte and Koetz, Joachim and Kakorin, Sergej and von Klitzing, Regine and Jung, Martin and Hellweg, Thomas and Wellert, Stefan}, title = {Extraction of model contaminants from solid surfaces by environmentally compatible microemulsions}, series = {Journal of colloid and interface science}, volume = {471}, journal = {Journal of colloid and interface science}, publisher = {Elsevier}, address = {San Diego}, issn = {0021-9797}, doi = {10.1016/j.jcis.2016.03.006}, pages = {118 -- 126}, year = {2016}, abstract = {In the present contribution, we evaluate the efficiency of eco-friendly microemulsions to decontaminate solid surfaces by monitoring the extraction of non-toxic simulants of sulfur mustard out of model surfaces. The extraction process of the non-toxic simulants has been monitored by means of spectroscopic and chromatographic techniques. The kinetics of the removal process was analyzed by different empirical models. Based on the analysis of the kinetics, we can assess the influence of the amounts of oil and water and the microemulsion structure on the extraction process. (C) 2016 Elsevier Inc. All rights reserved.}, language = {en} } @article{PoghosyanArsenyanShahinyanetal.2016, author = {Poghosyan, Armen H. and Arsenyan, Levon H. and Shahinyan, Aram A. and Koetz, Joachim}, title = {Polyethyleneimine loaded inverse SDS micelle in pentanol/toluene media}, series = {Colloids and surfaces : an international journal devoted to the principles and applications of colloid and interface science ; A, Physicochemical and engineering aspects}, volume = {506}, journal = {Colloids and surfaces : an international journal devoted to the principles and applications of colloid and interface science ; A, Physicochemical and engineering aspects}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0927-7757}, doi = {10.1016/j.colsurfa.2016.07.018}, pages = {402 -- 408}, year = {2016}, abstract = {An atomic scale molecular dynamics simulation (100 ns) was carried out to reveal the conformational features of a cationic polyelectrolyte, i.e., hyperbranched polyethyleneimine (PEI), inside of water-in-oil microemulsion droplets stabilized by the anionic sodium dodecyl sulfate surfactant (SDS) layer. Simulations show that the polymer reorients very quickly and is localized at the headgroup region, i.e., the polymer nitrogens are close to SDS sulfur atoms. In spite of the availability of surface roughness caused by the polymer, we track a stable inverse micelle during the production run. In overall, the obtained parameters are well compared with experimental findings. (C) 2016 Elsevier B.V. All rights reserved.}, language = {en} }