@article { ISI:000231605600022, title = {Silver nanoparticles of variable morphology synthesized in aqueous foams as novel templates}, journal = {Bulletin of Materials Science}, volume = {28}, number = {5}, year = {2005}, month = {AUG}, pages = {503-510}, publisher = {INDIAN ACADEMY SCIENCES}, type = {Article}, address = {C V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIA}, abstract = {

In this paper, we describe the synthesis of silver nanocrystals within aqueous foams as a template More specifically, we show that aqueous Ag+ ions may be electrostatically complexed with the anionic surfactants aerosol OT (sodium bis-2-ethylhexyl-sulfosuccinate, (AOT) and sodium dodecyl sulphate (SDS)) in a highly stable liquid foam. After drainage of the foam, the silver ions are reduced in situ by introducing sodium borohydride into the foam by capillary flow. This leads to the formation of silver nanoparticles of spherical, tape- and sheet-like morphology in the foam. The structure of the foam is extremely complex and presents reaction sites of different spatial extent. The differences in foam reaction-site geometry are believed to be responsible for the morphology variation in the silver nanoparticles observed. The silver nanoparticles are observed to be extremely stable in solution suggesting that the AOT or SDS molecules stabilize them. This approach appears promising for application in large-scale synthesis of nanoparticles and may be readily extended to other chemical compositions.

}, keywords = {Chemical synthesis, composites, foam, Intercalation, Nanoparticles}, issn = {0250-4707}, doi = {10.1007/BF02711244}, author = {Mandal, Sujata and Arumugam, S. K. and Pasricha, R. and Sastry, M.} } @article { ISI:000232886800008, title = {Synthesis and analysis of ZnO and CdSe nanoparticles}, journal = {Pramana-Journal of Physics}, volume = {65}, number = {4, SI}, year = {2005}, note = {1st National Conference on Nanoscience and Technology, Pune, INDIA, MAR 07-08, 2005}, month = {OCT}, pages = {615-620}, publisher = {INDIAN ACADEMY SCIENCES}, type = {Article}, address = {C V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIA}, abstract = {

Zinc oxide and cadmium selenide particles in the nanometer size regime have been synthesized using chemical routes. The particles were capped using thioglycerol in case of ZnO and 2-mercaptoethanol in case of CdSe to achieve the stability and avoid the coalescence. Zinc oxide nanoparticles were doped with europium to study their optical properties. A variety of techniques like UV-Vis absorption spectroscopy, X-ray diffraction (XRD), photoluminescence (PL), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM) were used to carry out structural and spectroscopic characterizations of the nanoparticles.

}, keywords = {chemical capping, Doping, Nanoparticles, photoluminescence}, issn = {0304-4289}, doi = {10.1007/BF03010449}, author = {Ashtaputre, S. S. and Deshpande, Aparna and Marathe, Sayali and Wankhede, M. E. and Chimanpure, J. and Pasricha, R. and Urban, J. and Haram, Santosh K. and Gosavi, S. W. and Kulkarni, S. K.} } @article { ISI:000238086600005, title = {Radiation assisted synthesis of nanosized barium zirconate}, journal = {Radiation Physics and Chemistry}, volume = {75}, number = {7}, year = {2006}, month = {JUL}, pages = {755-759}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

This paper reports the synthesis of refractory barium zirconate using solid-state reactive precursors subjected to gamma-radiations of a Co-60 source. Influence of varying doses on the formation of cubic phase of BaZrO3 has been investigated with the stepwise analysis of the intermediate products by means of FT-IR, XRD and TGA techniques. TEM depicts the nanospherical nature of the BaZrO3 particles. (C) 2006 Elsevier Ltd. All rights reserved.

}, keywords = {Ceramics, gamma-radiation, Nanoparticles, perovskite, refractory, XRD}, issn = {0969-806X}, doi = {10.1016/j.radphyschem.2005.12.041}, author = {Athawale, Anjali A. and Chandwadkar, Asha J. and Karandikar, Prashant R. and Pasricha, R. and Bapat, Malini S.} }