01998nas a2200205   4500008004100000245010500041210006900146260000800215300001200223520123300235100002201468700002201490700002101512700001801533700002901551700003101580700003101611700001801642856013201660       2017                        eng d00aMicelles versus Ribbons: how congeners drive the self-assembly of acidic sophorolipid biosurfactants0 aMicelles versus Ribbons how congeners drive the selfassembly of   cMAR  a643-6523 a<p>Sophorolipids (SLs), a class of microbially derived biosurfactants, are reported by different research groups to have different self-assembled structures (either micelles or giant ribbons) under the same conditions. Here we explore the reasons behind these contradictory results and attribute these differences to the role of specific congeners that are present in minute quantities. We show that a sample composed of a majority of oleic acid (C18:1) sophorolipid in the presence of only 0.5 % (or more) of congeners with stearic acid (C18:0) or linoleic acid (C18:2) results in the formation of micelles that are stable over long periods of time. Conversely, the presence of only 10 to 15 % of congeners with a stearic acid chain gives fibrillar structures instead of micelles. To study the mechanisms responsible, oleic acid SLs devoid of any other congeners were prepared. Very interestingly, this sample can self-assemble into either micelles or fibers depending on minute modifications to the self-assembly conditions. The findings are supported by light scattering, small-angle X-ray scattering, transmission electron microscopy under cryogenic conditions, high-pressure liquid chromatography, and NMR spectroscopy.</p>1 aDhasaiyan, Prabhu1 aLe Griel, Patrick1 aRoelants, Sophie1 aRedant, Emile1 aVan Bogaert, Inge, N. A.1 aPrevost, Sylvain, Francois1 aPrasad, Bhagavatula, L. V.1 aBaccile, Niki  uhttps://library.ncl.res.in/content/micelles-versus-ribbons-how-congeners-drive-self-assembly-acidic-sophorolipid-biosurfactants01313nas a2200169   4500008004100000022001400041245015600055210006900211260000800280300001600288490000700304520062800311100002000939700002300959700003100982856013001013       2017                        eng d  a1528-748300aMicrowave assisted batch and continuous flow synthesis of palladium supported on magnetic nickel nanocrystals and their evaluation as reusable catalyst0 aMicrowave assisted batch and continuous flow synthesis of pallad  cAUG  a5163–51690 v173 aPalladium nanocrystals (NCs) supported on nickel NCs (Pd/Ni) were synthesized in a continuous flow manner by the microwave-assisted method in the presence and absence of oleylamine. Parameters optimized for batch experiments were considered while performing continuous flow synthesis. The Pd/Ni NCs synthesized in the presence of oleylamine displayed good catalytic activity for hydrogenation of aromatic nitro compounds, and those bearing alkene, and alkyne moieties. The ferromagnetic character of the supporting nickel NCs allowed the recovery of the catalyst and these recovered catalysts could be reused several times.1 aNikam, Arun, V.1 aKulkarni, Amol, A.1 aPrasad, Bhagavatula, L. V.  uhttps://library.ncl.res.in/content/microwave-assisted-batch-and-continuous-flow-synthesis-palladium-supported-magnetic-nickel01319nas a2200229   4500008004100000022001400041245015400055210006900209260000800278300001200286490000600298520046800304653002000772653002300792653002100815653002400836653002300860100002500883700002500908700003100933856012500964       2020                        eng d  a2194-428800aMechanistic aspects of methanol electro-oxidation reaction through cyclic voltammetry: is it correct to blame carbon monoxide for catalyst poisoning?0 aMechanistic aspects of methanol electrooxidation reaction throug  cMAY  a19009550 v83 a<p>The mechanism of the methanol oxidation reaction is revisited using systematic cyclic voltammetric studies. These studies clearly indicate that the peak during the cathodic scan belongs mainly to electro-oxidation of the carbon monoxide, and that only a fraction of this carbon monoxide remains adsorbed on the electrode, contrary to what previous reports suggested. More details can be found in article number by Bhagavatula L. V. Prasad and co-workers.</p>
10acarbon monoxide10acyclic voltammetry10aelectrocatalysts10aelectrode poisoning10aMethanol oxidation1 aDeshpande, Pooja, S.1 aChaudhari, Vijay, R.1 aPrasad, Bhagavatula, L. V.  uhttps://library.ncl.res.in/content/mechanistic-aspects-methanol-electro-oxidation-reaction-through-cyclic-voltammetry-it