胶体金
大肠杆菌
纳米颗粒
核化学
纳米技术
抗菌剂
化学
生物传感器
组合化学
材料科学
生物化学
有机化学
基因
作者
Paskalis Sahaya Murphin Kumar,Davoodbasha MubarakAli,Rijuta Ganesh Saratale,Ganesh Dattatraya Saratale,Arivalagan Pugazhendhi,Gopalakrishnan Kumar,Nooruddin Thajuddin
标识
DOI:10.1016/j.micpath.2017.10.032
摘要
Algae could offer a potential source of fine chemicals, pharmaceuticals and biofuels. In this study, a green synthesis of dispersed cuboidal gold nanoparticles (AuNPs) was achieved using red algae, Gelidium amansii reacted with HAuCl4. It was found to be 4-7 nm sized cubical nanoparticles with aspect ratio of 1.4 were synthesized using 0.5 mM of HAuCl4 by HRSEM analysis. The crystalline planes (111), (200), (220), (311) and elemental signal of gold was observed by XRD and EDS respectively. The major constitutes, galactose and 3,6-anhydrogalactose in the alga played a critical role in the synthesis of crystalline AuNPs with cubical dimension. Further, the antibacterial potential of synthesized AuNPs was tested against human pathogens, Escherichia coli and Staphylococcus aureus. The synthesized AuNPs found biocompatible up to 100 ppm and high concentration showed an inhibition against cancer cell. This novel report could be helped to exploration of bioresources to material synthesis for the application of biosensor and biomedical application.
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