[01] T. SivaKumar, Department of Microbiology, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi, Tamilnadu, India. [02] T. Rathimeena, Department of Microbiology, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi, Tamilnadu, India. [03] V. Thangapandian, Department of Microbiology, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi, Tamilnadu, India. [04] T. Shankar, Department of Microbiology, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi, Tamilnadu, India.

Silver nanoparticle synthesis of selected plant extract were confirmed by Ultra violet visible and Fourier transform infrared spectroscopy The Mentha arvensis leaf extract mediated nanoparticles showed absorbance peaks at 340 nm region in the spectral analysis. Fourier transform infrared spectroscopy analysis of the silver nanoparticles showed absorption peaks of reduced silver at1650.95 cm−1. The total antioxidant of AgNO3) shows a maximum activity of 40% was observed at 600μg/ml. 1-Dibhenyl-2-Picrylhydrazlradical in Mentha arvensis mediated silver nanoparticles showed a maximum activity of 25% was observed at 600μg/ml. Hydrogen peroxide scavenging assay in Mentha arvensis mediated silver nanoparticles showed a maximum activity of 10% was observed at 600μg/ml. Reducing power of Mentha arvensis silver nanoparticles exhibited a higher activity of 19% in 600μg/ml. The selected plant exhibits better antioxidant properties.

Mentha arvensis UV, FTIR, Antioxidant

[01] Blois MS. (1958). Antioxidant determinations by the use of a stable free radical. Nature.181:119-123Chen Z, and Gao L. (2007). A facile and novel way for the synthesis of nearly monodisperse silver nanoparticles. Mater Res Bull. 42:1657-1661. [02] Feng QL, Wu J, Chen GQ, Cui FZ, Kim TN, Kim JO.(2000). A mechanistic study of the antibacterial effect of silver ions on E. coli and Staphylococcus aureus. J Biomed Mater Res. 52:662-8. [03] Gupta P, Bajpai M, Bajpai SK. (2008).Investigation of antibacterial properties of silver nanoparticle-loaded poly (acrylamide-co-itaconic acid)-grafted cotton fabric. J Cotton Sci. 12:280-6. [04] Gulcin I, Buyukokuroglu ME, and Kufrevioglu OI. (2004). Metal chelating and hydrogen peroxide scavenging effects of melatonin. J Pineal Res. 34(4): 278-81. [05] Gao X, Zhang J. and Zhang, I. (2002). Hollow sphere selenium nanoparticles: their invitro anti hydroxyl radical effect. Adv. Mat.Sci., 14: 290. [06] Gardea-Torresdey JL, Gomez E, Peralta-Videa J. (2003).Synthesis of gold nanotriangles and silver nanoparticles using Alfalfa sprouts: A natural source for the synthesis of silver nanoparticles. Langmuir.19:1357–1365. [07] Geethalakshmi R, and Sarada, DVL, (2012).Gold and silver nanoparticles from Trianthem adecandra: synthesis, characterization, and antimicrobial properties. Int J Nanomedicine. 7: 5375–5384. [08] Huie RE. and Padmaja, S. (1993).The reaction of NO with superoxide. Free Radic. Res. Commun. 18:195-199. [09] Hartsel S, and Bolard J. (1996). Amphotericin B: New life for an old drug, Trends Pharmacol. Sci.17: 445–449. [10] Huang B, Zhang J, Hou J. and Chen, C. (2003). Free radical scavenging efficiency of nano-Se in vitro. Free Radic. Biol. Med. 35:805-812. [11] Krutyakov YA, Kudrinskiy A, Yu Olenin A, and Lisichkin GV. (2008). Synthesis and properties of silver nanoparticles: advances and prospects, Russ. Chem. Rev. 77(3):233–257. [12] Kim JS, Yoon T, Yu KN, Kim BG, Park SJ, Kim HW, Lee KH, Park SB, Lee JK, and Cho MH.(2009).Toxicity and tissue distribution of magnetic nanoparticles in mice. Oxford Journals. 89(1):338–347. [13] Lee PC, and Meisel D. (1982). Adsorption and surface-enhanced Raman of dyes on silver and goldsols, J. Phys. Chem. 86:3391–3395. [14] Lim PY, Liu RS, She PL, Hung CF, Shih HC. (2006). Synthesis of Ag nanospheres particles in ethyleneglycol by electrochemical-assisted polyol process. Chem Phys Lett. 420:304-8. [15] Makari HK, Haraprasad N, Patil HS.and Ravi, K. (2008). In vitro Antioxidant Activity of The Hexane and Methanolic extracts of Cordia wallichii and Celastrus paniculata. Int J. Aesthet. AntiagingMed.1:1-10. [16] Nie S. and Emory, SR. (1997).Probing single molecules and single nanoparticles by surface-enhanced Raman scattering. Science.275:1102-1106. [17] Pacher P. and Beckman, SJ. (2007). Lucas Liaudet, Nitric oxide and peroxynitrite in health and disease. Physiol. Rev., 87:315-424. [18] Patel K, Kapoor S, Dave DP and Ukherjee T. (2007).Synthesis of Pt, Pd, Pt/Ag and Pd/Ag nanoparticles by microwave-polyol method. J Chem Sci.117:311-316 [19] Panacek A, Kvitek L, Prucek R, Kolar M, Vecerova R, and Pizurova N. (2006). Silver colloid nanoparticles: synthesis, characterization and their antibacterial activity. J PhyChem.110:16248-16253. [20] Prieto PD, Rojas AA, and Jordano J. (1999).Seed-specific expression Patterns and regulation by AB13 of an unusual late embryo-genesis-abundant gene in sunflower. Plant Mol Bio.39:615-627. [21] Raghunandan D, Bedre MD, Basavaraja S, Sawle B, Manjunath, SY. and Venkataraman A. (2010). Rapid biosynthesis of irregular shaped gold nanoparticles from macerated aqueous extracellular dried clove buds (Syzygiumaro maticum) solution. J. Colloid Surf. 79:235-242. [22] Ramamurthy CH, Padma M, Samadanam IDM, Mareeswaran R, Suyavaran A, Suresh Kumar M, Premkuar K. and Thirunavukkarasu C. (2013). The extra cellular synthesis of gold and silver nanoparticles and their free radical scavenging and antibacterial properties. J. Colloid Surf. 102:808-815. [23] Rachel MSB. and Meera Bai. G Antimicrobial activity of Mentha arvensis L. Lamiaceae. J Advanced Laboratory Research in Biology. 2011; 2(1): 1-4 [24] Simakin AV, Voronov VV, Kirichenko NA, and Shafeev GA. (2004) Nanoparticles produced by laser ablation of solids in liquid environment. Appl. Phy.79:1127. [25] Salkar RA, Jeevanandam P, Aruna ST, KoltypinY, and Gedanken AT (1999).Chemical preparation of amorphous silver nanoparticles. J. Mater. Chem.9:1333–1335. [26] Shrivastava S, Bera T, Roy A, Singh G, Ramachandrarao P, Dash D.(2007). Characterization of enhanced antibacterial effects of novel silver nanoparticles. Nanotechnology. 18: 225103-12. [27] Shahverdi AR, Fakhimi A, Shahverdi HR, and Minaian S. (2007).Synthesis and effect of silver nanoparticles on the antibacterial activity of different antibiotics against Staphylococcus aureus and Escherichia coli. Nano Med Nanotechnol Biol Med.3:168-171. [28] Sondi I, and SalopekSondi B. (2004). Silver nanoparticles as antimicrobial agent: a case studyon E. colias a model for gram-negative bacteria. J Colloid Interface Sci. 275:177-18. [29] Saikia JP, Paul S. and Samdarshi BK. (2010). Nickel oxide nanoparticles: A novel antioxidant. J. Colloid Surf. 78:146-152. [30] Subramanian R., Subramanian P. and Raj, V. (2013). Antioxidant activity of the stem bark of Shorearox burghii and its silver reducing power. SpringerPlus.2:28. [31] Watanabe A, Kajita M, Kim J, Kanayama A, Takahashi K, Mashino T., and Miyamoto Y.(2009). Invitro free radical scavenging activity of platinum nanoparticles, Nanotechnol. 20:455105-455114. [32] Yang Y, Matsubara S, and Xiong L. (2007).Solvothermal synthesis of multiple shapes of silver nanoparticles and their SERS properties. J. Phys. Chem. 111:9095–9104. [33] Yamaguchi H, Yamaguchi M, and Adachi M. (1998).Specific-detection of alkaline phosphate activity in individual species of marine phytoplankton. Plankton Benthos Res.14: 214-217. [34] Yuan YV, Walsh NA. (2006). Antioxidant and anti proliferative activities of extracts from variety of edible seaweed. Food ChemToxicol.44: 1144-1150.