In this paper, we report a suitable method for extracellular synthesis of copper oxide nano particles by using Phormidium cyanobacterium. We hypothesize that synthesis of copper oxide nano particles is believed to occur by extracellular hydrolysis of the cationic copper by certain metal chelating anionic proteins/reductase secreted by bacteria under simple experimental conditions like aerobic environment, neutral pH and room temperature. Proteins not only reduce Cu (II) into copper oxide nano particles (CONPs) but also plays significant role in stabilization of formed nanoparticles at room temperature. Further TEM, SEM, XRD and FTIR analysis have confirmed the synthesis of nano particles through microbial route. Extracellular induction of metal chelating proteins/reductase was analyzed by SDS-PAGE.   Keywords: Synthesis, copper oxide nano particles, Phormidium cyanobacterium

A strong modifiable double donor based on Bis(N-Ethyl-N-hydroxyethyl)aniline -derivatived structure was developed and applied to nonlinear optical materials for the first time. Three isolation groups were introduced into the donor...

Comments are presented on two recent papers [J. Acoust. Soc. Am. 96, 2546 (1994), J. Acoust. Soc. Am. 100, 57 (1996)]. Their results can be obtained with much economy of work by employing an alternative representation for the decomposition of the displacement. This decomposition is useful whenever transversely isotropic materials are being studied.