Aging retardation strategy of PVDF membranes: evaluation of free radical scavenging effect of nano-particles

2021 ◽  
Vol 45 (13) ◽  
pp. 6108-6119
Author(s):  
Siyi Li ◽  
Xuehui Zhao ◽  
Hongwei Zhang
Keyword(s):  
Free Radicals ◽  
Free Radical ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Nano Particles ◽  
Scavenging Effect ◽  
Radical Scavenging Effect ◽  
Free Radical Scavenging Effect

ESR and spectrophotometry proved that nano-particles can effectively remove free radicals produced by NaClO, and analyzed the mechanism of delaying aging.

scholarly journals Antioxidant and Free Radical Scavenging Effect of D-Carvone in Hypertensive Rats In Vivo and In Vitro Study

2015 ◽  
Vol 35 ◽  
pp. 6-12 ◽  
Author(s):  
Thiyagarajan Rajeshwari ◽  
Boobalan Raja
Keyword(s):  
Body Weight ◽  
Free Radical ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Enzymatic Antioxidants ◽  
Hypertensive Rats ◽  
Scavenging Effect ◽  
Induced Hypertension ◽  
Radical Scavenging Effect ◽  
Free Radical Scavenging Effect

This study was planned to assess the antioxidant and free radical scavenging effect of D-carvone against L-NAME (Nω-nitro-L-arginine methyl ester hydrochloride) induced hypertension. Hypertension was encouraged in adult male albino rats of the Wistar strain, considering 180–230 g, by oral administration of the L-NAME (40 mg/kg/ body weight/day) in drinking water for 4 weeks. Rats were cured with D-carvone (5, 10 and 20 mg/kg body weight) for four weeks. A significant reduction in the levels of non-enzymatic antioxidants such as vitamin C, vitamin E and reduced glutathione (GSH), in plasma were perceived in L-NAME induced hypertensive rats. Moreover, in vitro free radical scavenging activity of ABTS+ and DPPH• radical scavenging possible of D-carvone was also quantified. Treatment with D-carvone (5, 10 and 20 mg/kg bw) carries back all the above parameters to near usual level, in which 20 mg/kg displayed the highest effect than that of other two doses. Further, D-carvone displays concentration dependent antioxidant potential. These results suggest that D-carvone acts as an antioxidant and free radical scavenging agent against L-NAME induced hypertension.

scholarly journals Antioxidant and Free Radical Scavenging Effect of Acanthus ilicifolius

2011 ◽  
Vol 6 (3) ◽  
pp. 218-222 ◽  
Author(s):  
P. Thirunavuk ◽  
T. Ramanathan ◽  
R. Shanmugapr ◽  
G. Umamaheswa ◽  
G. Renugadevi
Keyword(s):  
Free Radical ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Scavenging Effect ◽  
Acanthus Ilicifolius ◽  
Radical Scavenging Effect ◽  
Free Radical Scavenging Effect
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