01635nas a2200253 4500008004100000022001400041245008700055210006900142260010600211300001000317490000800327520071300335653002201048653001501070653002901085653001801114100003401132700002601166700001401192700001701206700001901223700002101242856011801263 2011 eng d a0038-109800aInvestigations of magnetic and dielectric properties of cupric oxide nanoparticles0 aInvestigations of magnetic and dielectric properties of cupric o aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJAN a55-600 v1513 a

Cupric oxide nanoparticles of similar to 8-10 nm width and 40-45 nm length self assembled as large particles similar to 1-1 5 mu m have been investigated in the 10-325 K temperature range using magnetic and dielectric measurements In magnetic measurements a single broad peak at similar to 230 K in a zero field cooled sample has been observed Coercivity in magnetization measurements at 10 K suggests that the nanoparticles are core-shell type particles with an antiferromagnetic core and a ferromagnetic shell Dielectric measurements at various frequencies from 3 7 Hz to 949 kHz exhibit a sharp peak at 284 K followed by weak anomalies around 213 and 230 K (C) 2010 Elsevier Ltd All rights reserved

10aCuO nanoparticles10aDielectric10aFerroelectric transition10aFerromagnetic1 aBhalerao-Panajkar, Rohini, S.1 aShirolkar, Mandar, M.1 aDas, Raja1 aMaity, Tuhin1 aPoddar, Pankaj1 aKulkarni, S., K. uhttps://library.ncl.res.in/content/investigations-magnetic-and-dielectric-properties-cupric-oxide-nanoparticles-002448nas a2200265 4500008004100000022001400041245008700055210006900142260007900211300001400290490000700304520150500311653001401816653001901830653002201849653001701871653002001888100002801908700003101936700003101967700002001998700001702018700002702035856012002062 2014 eng d a1001-841700aNovel synthesis and characterization of CuO nanomaterials: biological applications0 aNovel synthesis and characterization of CuO nanomaterials biolog a360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USAbELSEVIER SCIENCE INCcDEC a1615-16190 v253 a

CuO nanoparticles were synthesized at a relatively low temperature (80 degrees C) for 2 h using polyethylene glycol-glycerol mixture which acts as a capping agent. A detailed characterization of the synthesized nanomaterials were performed utilizing X-ray diffraction (XRD), infra-red spectroscopy (IR), thermogravimetric analysis (TGA-DTA), transmission electron microscopy (TEM), photoluminescence (PL) by studying its crystalline phase, vibrational mode, thermal analysis, morphology and photoluminescence properties. The effect of annealing on the as-prepared nanoparticles were studied and compared with their corresponding bulk counterpart. The synthesized nanoparticles have been screened for in vitro cytotoxicity (IC50) studies against the human cervical adenocarcinoma cell line (HeLa) using MTT assay methods. The as-prepared nanoparticle inhibits the proliferation of this HeLa cell. The standard disc diffusion method has been used to study the antibacterial activity of the samples against the human pathogenic bacteria Escherichia coli (MTCC 729), Proteus mirabilis (MTCC 425) and Klebsiella pneumoniae subsp. pneumoniae (MTCC 432). The results have been compared with the positive control antibiotic gentamycin. The synthesized nanoparticles would provide a potential alternative to antibiotics for controlling some of the microorganisms causing urolithiasis. (C) 2014 Meitram Niraj Luwang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

10aAnnealing10aAntibacterials10aCuO nanoparticles10aCytotoxicity10aHeLa cell lines1 aDevi, Ayekpam, Bimolini1 aMoirangthem, Dinesh, Singh1 aTalukdar, Narayan, Chandra1 aDevi, Damayanti1 aSingh, Rajen1 aLuwang, Meitram, Niraj uhttps://library.ncl.res.in/content/novel-synthesis-and-characterization-cuo-nanomaterials-biological-applications-002848nas a2200313 4500008004100000022001400041245021800055210006900273260000800342300001600350490000700366520167100373653002502044653002202069653002902091653002202120653002902142100001702171700001702188700002302205700003002228700002602258700002202284700001702306700003002323700002802353700002302381856013002404 2023 eng d a0272-884200aDesign and development of multi-functional graphitic carbon nitride heterostructures embedded with copper and iron oxide nanoparticles as versatile sensing platforms for environmental and agricultural applications0 aDesign and development of multifunctional graphitic carbon nitri cJUN a20688-206980 v493 a

In the recent past, agrotechnology has witnessed a tremendous change due to the advent of technologies employed towards enhancing the yield and quality of the crops. The application of nanotechnology in agriculture is promoting sustainable practices and smart farming. Currently, nanomaterial-based sensors are gaining considerable attention in agrotechnology, such sensors can detect the environmental conditions and support for crop growth and enhances the agricultural yield. Graphiticcarbon nitride (g-C3N4), a soft polymer belongs to a class of 2-D semiconductors which are affordable, metal-free, indispensable for sensing applications due to significant changes in their conductivity upon exposure to analyte molecules in nano-regime. Further, this g-C3N4 can be combined with other nano metal oxides to form nanocomposites with remarkable properties and superior performance. In this work we report development of high-performance sensors based on graphitic carbon nitride embedded with copper and iron oxide nanoparticles. These heterostructures offers tremendous improvement in the physical and chemical properties due to the synergetic interactions between various phases. The chemiresistive sensor fabricated from these nanocomposites exhibit excellent sensitivity towards monitoring methane gas @ ppb level, relative humidity (% RH), and soil moisture content. Owing to their excellent sensitivity, stability and selectivity, this graphitic carbon nitride embedded with Cu and Fe oxide nanoparticles could be potentially used as multifunctional sensors towards environmental monitoring and greenhouse conditions in agricultural applications.

10aAgricultural sensors10aCuO nanoparticles10aEnvironmental monitoring10aFeO nanoparticles10aGraphitic carbon nitride1 aKhasim, Syed1 aPasha, Apsar1 aDastager, Syed, G.1 aPanneerselvam, Chellasamy1 aHamdalla, Taymour, A.1 aAl-Ghamdi, S., A.1 aAlfadhli, S.1 aMakandar, Mohammad, Basha1 aAlbalawi, Jalal, Bassam1 aDarwish, A., A. A. uhttps://library.ncl.res.in/content/design-and-development-multi-functional-graphitic-carbon-nitride-heterostructures-embedded