02700nas a2200241 4500008004100000022001400041245009100055210006900146260007300215300001200288490000800300520186300308653000902171653002302180653001902203653001202222653001702234653001702251100002602268700001602294700002602310856012202336 2006 eng d a1381-116900aFactors influencing decomposition of H2O2 over supported Pd catalyst in aqueous medium0 aFactors influencing decomposition of H2O2 over supported Pd cata aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcDEC a115-1200 v2603 a

Since H2O2 decomposition can result in selectivity/yield loss in the direct H2O2 synthesis process from H-2 and O-2 over supported Pd catalysts, it is important to have an enhanced understanding about the factors affecting the H2O2 decomposition reaction. Herein, detailed studies have been undertaken to investigate the influence of different factors, such as (a) nature and concentration of acid in reaction medium, (b) nature and concentration of halide in presence and absence of acid in reaction medium, (c) pretreatment procedures and (d) catalyst modification by incorporation of different halides, on the H2O2 decomposition reaction over a 5% Pd/C catalyst in aqueous medium at 25 degrees C. This study has shown that the H2O2 decomposition activity is profoundly influenced by all the above factors. The effectiveness of the acids in suppressing the H2O2 decomposition activity decreased in the following order: hydroiodic acid > hydrobromic acid > hydrochloric acid >> acetic acid > phosphoric acid > sulfuric acid > perchloric acid. The ability of the acid to decrease the H2O2 decomposition activity was found to very strongly depend on the nature of its associated anion. Halides, such as iodide, bromide and chloride were particularly effective in suppressing the H2O2 decomposition activity. Oxidation pretreatment of the catalyst was found to strongly suppress its H2O2 decomposition activity, while a reduction treatment was found to promote its activity. A gradual decrease in the H2O2 decomposition activity of the catalyst was observed with each successive usage due to in situ sub-surface oxidation of Pd by H2O2. Halide incorporation either via the reaction medium or prior catalyst modification had a similar qualitative effect on the H2O2 decomposition activity. (c) 2006 Elsevier B.V. All rights reserved.

10aacid10aH2O2 decomposition10aH2O2 synthesis10ahalides10aPd catalysts10apretreatment1 aChoudhary, Vasant, R.1 aSamanta, C.1 aChoudhary, Tushar, V. uhttps://library.ncl.res.in/content/factors-influencing-decomposition-h2o2-over-supported-pd-catalyst-aqueous-medium-001457nas a2200229 4500008004100000022001400041245012500055210006900180260010200249300001200351490000800363520056000371653000900931653001300940653004900953653001401002653000901016100002601025700002201051700002401073856013001097 2012 eng d a0974-362600aSolvent-free oxidation of aldehydes to acids by TBHP using environmental-friendly -exchanged Mg-Al hydrotalcite catalyst0 aSolventfree oxidation of aldehydes to acids by TBHP using enviro aC V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIAbINDIAN ACAD SCIENCEScJUL a835-8390 v1243 a

A number of hydrotalcite (Mg-Al, Mn-Al, Co-Al, Ni-Al, Mg-Fe, Mg-Cr and Cu-Al) catalysts, with or without MnO-exchange, were evaluated for their performance in the solvent-free oxidation of benzaldehyde to benzoic acid by tert-butyl hydroperoxide under reflux in the absence of any solvent. The MnO-exchanged Mg-Al-hydrotalcite (Mg/Al = 10) showed high activity in the oxidation of different aromatic and aliphatic aldehydes to their corresponding acids and also showed excellent reusability in the oxidation process which is environmental-friendly.

10aacid10aAldehyde10aMnO4-1-exchanged Mg-Al-hydrotalcite catalyst10aOxidation10aTBHP1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.1 aNarkhede, Vijay, S. uhttps://library.ncl.res.in/content/solvent-free-oxidation-aldehydes-acids-tbhp-using-environmental-friendly-exchanged-mg-al-002700nas a2200349 4500008004100000022001400041245011800055210006900173260000800242490000700250520161600257653000901873653001201882653001801894653002601912653001101938653001801949653001901967653001801986653002202004653002402026653001502050653001202065653002702077100002502104700002002129700002002149700002002169700001902189700001902208856012302227 2017 eng d a0928-493100aMultifunctional inulin tethered silver-graphene quantum dots nanotheranostic module for pancreatic cancer therapy0 aMultifunctional inulin tethered silvergraphene quantum dots nano cSEP0 v783 a

Cancer nanotechnology is an emerging area of cancer diagnosis and therapy. Although considerable progress has been made for targeted drug delivery systems to deliver anticancer agents to particular site of interest, new nanomaterials are frequently being developed and explored for better drug delivery efficiency. In the present work, we have explored a novel nanoformulation based on silver-graphene quantum dots (Ag-GQDs) nanocomposite for its successful implementation for pancreatic cancer specific drug delivery in wistar rats. Carboxymethyl inulin (CMI); a modified variant of natural polysaccharide inulin is tethered with the nanocomposite via carbodiimide coupling to enhance the biocompatibility of nanoformulation. Experiments are performed to investigate the cytotoxicity reduction of silver nanoparticles after inulin tethering as well as anticancer efficacy of the system using 5-Fluorouracil (5-FU) as model drug. SEM, TEM, FT-IR, UV-vis, photoluminescence and anti proliferative assays (MTT) are performed for characterisation of the nanocomposite. Hyaluronic acid (HA) is conjugated as targeting moiety for CD-44 (cancer stem cell marker) to fabricate a complete targeted drug delivery vehicle specific for pancreatic cancer. In the present work two prime objectives were achieved; mitigation the toxicity of silver nanoparticles by inulin coating and it's in vivo application for pancreatic cancer. (C) 2017 Elsevier B.V. All rights reserved.

10aacid10aDextran10aDrug-delivery10agraphene quantum dots10aInulin10aNanocomposite10aNanocomposites10aNanoparticles10aPancreatic Cancer10aSilver nanoparticle10aStrategies10aSystems10aTargeted Drug Delivery1 aJoshi, Preeti, Nigam1 aAgawane, Sachin1 aAgawane, Sachin1 aAgawane, Sachin1 aSarkar, Dhiman1 aSarkar, Dhiman uhttps://library.ncl.res.in/content/multifunctional-inulin-tethered-silver-graphene-quantum-dots-nanotheranostic-module02767nas a2200277 4500008004100000245008200041210006900123260000800192490000800200520188500208653000902093653004202102653002102144653001402165653001502179653001502194653001302209653004702222653001002269100002102279700001702300700002202317700001902339700001902358856011202377 2017 eng d00aThermotropic liquid crystalline polyesters derived from 2-chloro hydroquinone0 aThermotropic liquid crystalline polyesters derived from 2chloro  cSEP0 v1293 a

Synthesis of thermotropic liquid crystalline polyesters derived from bis[4-hydroxy benzoyloxy]-2-chloro-1,4-benzene (BHBOCB) and aliphatic dicarboxylic acid chlorides by interfacial polycondensation methodology is presented. Synthesised polyesters consist of bis[4-hydroxy benzoyloxy]-2-chloro-1,4-benzene as a mesogen and aliphatic diacid chloride as flexible spacer. The length of oligomethylene units in the polymer was varied from the trimethylene to the dodecamethylene groups. Synthesized polyesters were characterized by differential scanning calorimetry and optical microscopy. The transition temperatures and thermodynamic properties were studied for all these polymers. These polyesters exhibited thermotropic liquid crystalline behavior and showed nematic texture except decamethylene spacer. Decamethylene spacer based polyester showed marble texture of smectic C. Mesophase stability of these polyesters was higher than (except first heating cycle of PE-1). 

SYNOPSIS The present study deals with the synthesis of thermotropic liquid crystalline polyesters derived from bis[4-hydroxy benzoyloxy]-2-chloro-1,4-benzene (BHBOCB) and aliphatic dicarboxylic acid chlorides by interfacial polycondensation methodology.

10aacid10aAliphatic Flexible Spacers Main-chain10aAromatic Mesogen10aElastomer10aMorphology10aPolydomain10aPolymers10aThermotropic Liquid Crystalline Polyesters10aUnits1 aManurkar, Nagesh1 aMore, Sayaji1 aMulani, Khudbudin1 aGanjave, Nitin1 aChavan, Nayaku uhttps://library.ncl.res.in/content/thermotropic-liquid-crystalline-polyesters-derived-2-chloro-hydroquinone00723nas a2200205 4500008004100000022001400041245010400055210006900159260000900228300001600237490000700253653000900260653001500269653001900284653002200303100001600325700003000341700001700371856012900388 2024 eng d a1944-824400aBiocompatible PVAc-g--PLLA acrylate polymers for DLP 3D printing with tunable mechanical properties0 aBiocompatible PVAcgPLLA acrylate polymers for DLP 3D printing wi cOCT  a62594-626050 v1610aacid10acopolymers10apolymerization10aTACONIC ANHYDRIDE1 aPal, Shibam1 aGavhane, Utreshwar, Arjun1 aAsha, S., K. uhttps://library.ncl.res.in/content/biocompatible-pvac-g-plla-acrylate-polymers-dlp-3d-printing-tunable-mechanical-properties