Biological approach of zinc oxide nanoparticles formation and its characterization

Ravindra P. Singh*, Vineet K. Shukla, Raghvendra S. Yadav, Prashant K. Sharma, Prashant K. Singh, Avinash C. Pandey     

Nanotechnology Application Centre, University of Allahabad, Allahabad 211002, India

Adv. Mater. Lett., 2011, 2 (4), pp 313-317

DOI: 10.5185/amlett.indias.204

Publication Date (Web): Apr 08, 2012



Herein, we are reporting a novel biological approach for the formation of zinc oxide (ZnO) nanoparticles using Maddar (Calotropis procera) latex at room temperature. X-Ray diffraction (XRD) pattern reveals the formation of ZnO nanoparticles, which shows crystallinity. Transmission electron microscopy (TEM) suggested particles size and shape in the range of 5-40 nm. Scanning electron microscopy (SEM) image reveals that the particles are of spherical and granular nature. UV-Vis absorption shows characteristic absorption peak of ZnO nanoparticles. Photoluminescence (PL) studies were performed to emphasize its emission properties. This simple and cost-effective biological approach for the formation of ZnO NPs has a promising application in biosensing, electronics and photonics.


Biological approach, Calotropis procera, zinc oxide, nanoparticles, biosensing

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