Ultrasonication: enhances the antioxidant activity of metal oxide nanoparticles.
The present work is a modification for Serpen et al.'s method for antioxidant activity determination for insoluble materials with special reference to metal oxide nanoparticles. As reported in our former publications the mixing procedures were followed as mentioned by Serpen et al. A new mixing procedure was followed for enhancing the reaction between metal oxide nanoparticles and DPPH in the solution. The sonication inside a water bath enhances the DPPH scavenging capacity of metal oxide nanoparticles up to 13.94% and 18.96% in case of ferric oxide and nickel oxide nanoparticles respectively. The control DPPH solution without any nanoparticles does not show any degradation due to sonication.
Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam 784028, India. jyotizone@gmail.com
Jyoti Prasad
JP
Saikia
Samrat
S
Paul
Bolin Kumar
BK
Konwar
Sanjoy Kumar
SK
Samdarshi
D000975:Antioxidants / Q000378:metabolism*; D001713:Biphenyl Compounds / Q000737:chemistry; D005290:Ferric Compounds / Q000737:chemistry*; D016166:Free Radical Scavengers / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D009532:Nickel / Q000737:chemistry*; D010851:Picrates / Q000737:chemistry; D013010:Sonication / Q000379:methods*; D014961:X-Ray Diffraction
D000975:Antioxidants; D001713:Biphenyl Compounds; D005290:Ferric Compounds; D016166:Free Radical Scavengers; D010851:Picrates; C000499:ferric oxide; D009532:Nickel; C028007:nickel monoxide; C004931:1,1-diphenyl-2-picrylhydrazyl