01879nas a2200217   4500008004100000022001400041245011700055210006900172260007300241300001000314490000800324520104600332653002101378653002801399653001701427653002201444653002301466100002101489700002101510856013001531       2016                        eng d  a0926-860X00aSpectroscopy and catalytic activity study of gold supported on barium titanate nanotubes for styrene epoxidation0 aSpectroscopy and catalytic activity study of gold supported on b  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAUG  a61-720 v5233 a<p>Gold (0.5-5 wt.%) supported on barium titanate nanotubes (Au/BaTNT) were prepared, characterized and for the first time, investigated as catalysts for selective oxidation of styrene with oxygen (O-2 or H-2 + O-2) and peroxides (H2O2 or TBHP). Conversion of styrene enhanced when H-2 was co-added to O-2 in the reactions. Au/BaTNT activated O-2 and H-2 and produced H2O2 in situ for use in oxidations. Peroxides were found better oxidants than O-2. At optimized conditions, styrene oxide selectivity of 80.1 wt.% at styrene conversion of 60.5 wt.% was achieved over Au(1 wt.%)/BaTNT using TBHP. Au particles (5.0-7.4 nm) were dispersed and decorated on the walls of BaTNT. They exhibited superior performance to the known Au catalysts in styrene oxidation. Reactive oxygen species formed during oxidation reactions were followed with in situ spectral characterizations (diffuse reflectance UV-vis and FT -Raman). Au/BaTNT was reusable in four recycles with little loss in catalytic activity. (C) 2016 Elsevier B.V. All rights reserved.</p>10aAu Nanoparticles10areactive oxygen species10aspectroscopy10aStyrene Oxidation10aTitanate nanotubes1 aNepak, Devadutta1 aSrinivas, Darbha  uhttps://library.ncl.res.in/content/spectroscopy-and-catalytic-activity-study-gold-supported-barium-titanate-nanotubes-styrene02552nas a2200313   4500008004100000245010700041210006900148260000800217300001500225490000700240520158100247653002601828653001701854653002001871653002101891653002301912100001701935700001501952700001501967700001601982700001701998700001502015700001402030700001502044700001602059700001502075700001802090856013002108       2017                        eng d00aDocetaxel-titanate nanotubes enhance radiosensitivity in an androgen-independent prostate cancer model0 aDocetaxeltitanate nanotubes enhance radiosensitivity in an andro  cAUG  a 6357-63640 v123 aAround 40% of high-risk prostate cancer patients who undergo radiotherapy (RT) will experience biochemical failure. Chemotherapy, such as docetaxel (DTX), can enhance the efficacy of RT. Multidrug resistance mechanisms often limit drug efficacy by decreasing intracellular concentrations of drugs in tumor cells. It is, therefore, of interest to develop nanocarriers of DTX to maintain the drug inside cancer cells and thus improve treatment efficacy. The purpose of this study was to investigate the use of titanate nanotubes (TiONts) to develop a TiONts-DTX nanocarrier and to evaluate its radiosensitizing in vivo efficacy in a prostate cancer model. In vitro cytotoxic activity of TiONts-DTX was evaluated using an MTS assay. The biodistribution of TiONts-DTX was analyzed in vivo by single-photon emission computed tomography. The benefit of TiONts-DTX associated with RT was evaluated in vivo. Eight groups with seven mice in each were used to evaluate the efficacy of the nanohybrid combined with RT: control with buffer IT injection ± RT, free DXL ± RT, TiONts ± RT and TiONts-DXL ± RT. Mouse behavior, health status and tumor volume were monitored twice a week until the tumor volume reached a maximum of 2,000 mm3. More than 70% of nanohybrids were localized inside the tumor 96 h after administration. Tumor growth was significantly slowed by TiONts-DTX associated with RT, compared with free DTX in the same conditions (P=0.013). These results suggest that TiONts-DTX improved RT efficacy and might enhance local control in high-risk localized prostate cancer.10aDocetaxel Nanocarrier10ananoparticle10aProstate Cancer10aRadiosensitivity10aTitanate nanotubes1 aMirjolet, C.1 aMartin, E.1 aBoudon, J.1 aLoiseau, A.1 aChevrier, S.1 aBoidot, R.1 aOudot, A.1 aCollin, B.1 aJoy, P., A.1 aMillot, N.1 aCréhange, G.  uhttps://library.ncl.res.in/content/docetaxel-titanate-nanotubes-enhance-radiosensitivity-androgen-independent-prostate-cancer