Now the household mosquitoes (Culex Sp.) synthesize CdS nanoparticles

ABSTRACTA novel technique of utilizing the dead mosquitoes (Culex Sp.) broth is reported with a conviction that dead animals and their tissue/organ wastes too can participate in nanoparticle synthesis as only organism is dead not the molecules which make them. A very simple environment friendly protocol employing the broth of the Culex Sp. yielded chalcogenide (CdS) nanoparticles. X-ray and transmission electron microscopy analyses are performed to ascertain the formation of CdS nanoparticles. Individual nanoparticles as well as a very few aggregate having the size of 2–14 nm are found. UV-Vis spectroscopy study revealed the surface plasmon resonance at 426 nm. The product also showed blue shift in the UV-Vis and photoluminescence (PL) spectra. A possible involved mechanism for the biosynthesis of CdS nanoparticles has also been proposed in which participation of tropomyosin, chitin and metallothioneins is suggested.