Antibacterial Studies and Effect of Poloxamer on Gold Nanoparticles by Zingiber Officinale Extracted Green Synthesis

K Chitra, K Reena, A Manikandan, S Arul Antony
Journal of Nanoscience and Nanotechnology 2015, 15 (7): 4984-91
Poloxamer finds excellent clinical and therapeutic uses for curing of various ailments. The Zin- giber officinale (Z. officinale) is one of the well-known medicinal plants. The poloxamer188 and the rhizome extract of Z. officinale have been used to synthesize the gold nanoparticles (AuNPs) by a green approach. The Z. officinale extract has been used as a reducing agent while the polox- amerl88 has been used as a stabilizing agent. The effect of addition of poloxamer on the controlling the shape and size of the AuNPs has been investigated by transmission electron microscopy (TEM) and dynamic light scattering techniques. The formation of AuNPs has also been confirmed by UV-Visible spectral, energy dispersive X-ray (EDX) and powder X-ray diffraction (XRD) analyses. The anti-bacterial activity of the green synthesized AuNPs has been investigated on the three human pathogens Staphylococcus aureus, Escherichia coli, and Klebsiella pneumonia. The poloxamer188 protected AuNPs inhibit the bacterial growth more effectively than the pure Z. officinale extract and the standard tetracycline (TA).

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