Antioxidant activity and synthesis of silver Nanoparticles using the leaf extract Of limoniaacidissima

2016 ◽  
Vol 7 (4) ◽  
Author(s):  
THILAGAVATHI T ◽  
KATHIRAVAN G ◽  
SRINIVASAN K
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract

scholarly journals Sintesis Nanopartikel Perak Menggunakan Ekstrak Daun Kluwak Pangium edule Reinw Sebagai Bioreduktor dan Uji Aktivitasnya Sebagai Antioksidan

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Indrawati Patabang ◽  
Syahruddin Kasim ◽  
Paulina Taba
Keyword(s):  
Antioxidant Activity ◽  
Particle Size ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Average Particle Size ◽  
Xrd Analysis ◽  
Average Particle ◽  
Result Show ◽  
Ic50 Values ◽  
Show Result

Silver nanoparticles have been synthesized using kluwak leaf extract (Pangium edule Reinw) as bioreductor and antioxidant activity assay. The nanoparticles formed were monitored by observing UV-Vis absorption and characterized by using FTIR, PSA, XRD and SEM instruments. The result of functional group characterization with FTIR show that the functional groups OH, C = O, C-O and CH2 act as Ag+ reducing agent. The size of silver nanoparticles was determined by using Particle Size Analyzer (PSA) and the result show average particle size distribution of 93.2 nm. Morphology of AgNp were observed by Scanning Electron Microscope (SEM) and X-Ray Difraction (XRD) analysis show result of 51,78 nm. The antioxidant activity was shown by in kluwak leaf extract and silver nanoparticles with IC50 values respectively 831,33 ppm dan 1493,09 ppm.

scholarly journals Green Synthesis, Characterization and In-vitro Antioxidant Property of Silver Nanoparticles Using the Aqueous Leaf Extract of Justicia carnea

2021 ◽  
pp. 20-30
Author(s):  
I. O. Salaudeen ◽  
M. O. Olajuwon ◽  
A. B. Ajala ◽  
T. O. Abdulkareem ◽  
S. A. Adeniyi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Antioxidant Activities ◽  
Silver Ions ◽  
Antioxidant Property ◽  
Biological Macromolecules ◽  
Aqueous Leaf Extract ◽  
In Vitro Antioxidant Activity

This study investigated the synthesis, characterization and in vitro antioxidant activity of silver nanoparticles (AgNPs) using the aqueous leaf extract of Justicia carnea.  The aqueous leaf extract of J. carnea was used as a potential reducing and capping agent. To identify the compounds responsible for the reduction of silver ions, the functional groups present in the plant extract were subjected to FTIR. The in vitro antioxidant activity of synthesized nanoparticles was evaluated in terms of ferric reducing antioxidant potential (FRAP), DPPH (1,1-diphenyl-2-picrylhydrazyl) and ABTS (2,2`-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) free radicals scavenging assays. The surface plasmon resonance confirmed the formation of AgNPs with maximum absorbance at kmax = 446 nm. FTIR revealed the biological macromolecules of J. carnea leaf extract involved in the synthesis and stabilization of AgNPs. UV-Visible spectrophotometer showed absorbance peak in the range of 436-446 nm. The silver nanoparticles exhibited moderate antioxidant activities compared to standard antioxidants (ascorbic acid and BHT). These results confirmed this protocol as simple, eco-friendly, nontoxic and an alternative for conventional physical and chemical methods. It can be concluded that J. carnea leaf extract can be used effectively in the production of potential antioxidant AgNPs which could be useful in various bio-applications such as cosmetics, food and biomedical industry.

Green synthesis of silver nanoparticles using Atrocarpus altilis leaf extract and the study of their antimicrobial and antioxidant activity

2016 ◽  
Vol 180 ◽  
pp. 264-267 ◽  
Author(s):  
Veerasamy Ravichandran ◽  
Sethu Vasanthi ◽  
Sivadasan Shalini ◽  
Syed Adnan Ali Shah ◽  
Rajak Harish
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Leaf Extract ◽  
Antimicrobial And Antioxidant Activity

scholarly journals Biosynthesis of Silver Nanoparticles Using Annonamuricata Leaf Extract and its Antioxidant Activity

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2048-2051
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticles ◽  
Video Games ◽  
Surface Plasmon ◽  
Leaf Extract ◽  
Ftir Spectra ◽  
Sem And Tem

Silver nanoparticles have been correctly synthesizedusingAnnonamuricata leaf extricate by the usage of eco-accommodating, minimum attempt technique. The nanoparticles have been defined through utilizing UV–vis, FTIR, EDAX,SEM and TEM one at a time. The UV/Vis variety of AgNPs confirmed a surface plasmon ingestion band with best absorbance at 429 nm. FTIR spectra demonstrated the nearness of phytochemicals which might be in rate of the mixture of nanoparticles fromAnnonamuricata separate. Triangular states of severa sizes had been observed inside the geology of AFM photo of silver nanoparticles. SEM photographs of the silver nanoparticles regarded like agglomerated circles with ugly surfaces. TEM photo additionally verified the silvernano debris have been seen round match as a play around with a easy floor morphologyand the width of the nano debris became visible as spherical 50nm. The silver nanoparticles included from Annonamuricata leaf pay attention demonstrated the notable capability of maximum cancers prevention agent physical video games.

scholarly journals In Vitro Antioxidant Activity of Hydrophila auriculata Leaves Extract and Silver Nanoparticles

2018 ◽  
Vol 4 (5) ◽  
pp. 549-551 ◽  
Author(s):  
M. Ravishankar ◽  
V. Christibai Juliet Esther
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Elemental Silver ◽  
Total Antioxidant ◽  
Dose Dependent ◽  
In Vitro Antioxidant Activity

Antioxidant activity of Hydrophila auriculata leaf extract and silver nanoparticles (AgNPs) were carried out for proving its utility in free radical mediated diseases. The flower extract and silver nanoparticles were screened for in vitro antioxidant activity by oxygen radical scavenging such as DPPH, total antioxidant assay and superoxide radical scavenging activity at different concentrations. The antioxidant potential was found to be dose dependent. AgNPs possess probable antioxidant activity as compared with Hydrophila auriculata leaf extract and near to the standard. It is an obvious indication that the resulting activity of the AgNPs is not due to any capping agents, which are found in minute amounts but is due to the elemental silver.

Sign in / Sign up

Export Citation Format

Share Document