Browsing by Author "Sarma, Tridib Kumar"

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    Spectroscopic investigations of fluid flow in soap bubbles & Au-nanoparticles and its polyaniline composite synthesis
    (2004) Sarma, Tridib Kumar
    This thesis consists of experimental investigations in the following two areas. (i)Stabilization of single soap bubbles and their spectroscopic investigation. Observation o Marangoni effect driven upwardly mobile fluid layer in a soap bubble film. Control of the fluid movement by controlling surfactant concentration gradient. (ii)Synthesis of Au-nanoparticles (NPs) from reduction of HAuCl4 by H2O2. Generation of shape- selected Au-NPs. Preparation of Au NP-conducting polyaniline (PANI) composite. Solubilization of the composite in aqueous starch solution. Colloidal polyaniline and Au-NPs-PANI composite nanoparticle synthesis.