Antibacterial activity and synergistic antibacterial potential of biosynthesized silver nanoparticles against foodborne pathogenic bacteria along with its anticandidal and antioxidant effects

Frontiers in Microbiology

Volumn 8, Issue FEB, 2017, Pages

  Patra, Jayanta Kumar ^a   Baek, Kwang Hyun ^b  

^a Dongguk University   (South Korea)

^b Yeungnam University   (South Korea)

Author keywords

Antibacterial; Anticandidal; Antioxidant; Foodborne bacteria; Green synthesis; Silver nanoparticles; Zea mays

Indexed keywords

AMPHOTERICIN B; KANAMYCIN; RIFAMPICIN; SILVER NANOPARTICLE;

ABTS RADICAL SCAVENGING ASSAY; ANTIBACTERIAL ACTIVITY; ANTIFUNGAL ACTIVITY; ANTIOXIDANT ACTIVITY; ARTICLE; BACILLUS CEREUS; BACTERIUM; CONTROLLED STUDY; DPPH RADICAL SCAVENGING ASSAY; DRUG MECHANISM; DRUG POTENTIATION; DRUG SYNTHESIS; ESCHERICHIA COLI; FOODBORNE PATHOGENIC BACTERIUM; FREE RADICAL SCAVENGING ASSAY; INFRARED SPECTROSCOPY; LISTERIA MONOCYTOGENES; MINIMUM BACTERICIDAL CONCENTRATION; MINIMUM INHIBITORY CONCENTRATION; NO SCAVENGING ACTIVITY; NONHUMAN; PLANT LEAF; SALMONELLA ENTERICA SEROVAR TYPHIMURIUM; SCANNING ELECTRON MICROSCOPY; STAPHYLOCOCCUS AUREUS; THERMOGRAVIMETRY; ULTRAVIOLET SPECTROPHOTOMETRY; X RAY DIFFRACTION;

EID: 85014539565     PISSN: None     EISSN: 1664302X     Source Type: Journal    
DOI: 10.3389/fmicb.2017.00167     Document Type: Article

References (101)

1. Adedapo, A. A., Jimoh, F. O., Afolayan, A. J., and Masika, P. J. (2008). Antioxidant activities and phenolic contents of the methanol extracts of the stems of Acokanthera oppositifolia and Adenia gummifera. BMC Complement. Altern. Med. 8:54. doi: 10.1186/1472-6882-8-54.
2. Andersson, D. I., and Hughes, D. (2010). Antibiotic resistance and its cost: Is it possible to reverse resistance? Nat. Rev. Microbiol. 8, 260-271. doi: 10.1038/nrmicro2319.
3. Artunduaga Bonilla, J. J., Paredes-Guerrero, D. J., Sanchez-Suarez, C. I., Ortiz-Lopez, C. C., and Torres-Saez, R. G. (2015). In vitro antifungal activity of silver nanoparticles against fluconazole resistant Candida species. World J. Microbiol. Biotechnol. 31, 1801-1809. doi: 10.1007/s11274-015-1933-z.
4. Bacchetti, T., Masciangelo, S., Micheletti, A., and Ferretti, G. (2013). Carotenoids, phenolic compounds and antioxidant capacity of five local Italian corn (Zea mays L.) kernels. J. Nutr. Food Sci. 3:6. doi: 10.4172/2155-9600.1000237.
5. Barapatre, A., Aadil, K. R., and Jha, H. (2016). Synergistic antibacterial and antibiofilm activity of silver nanoparticles biosynthesized by lignin-degrading fungus. Bioresour. Bioprocess. 3:8. doi: 10.1186/s40643-016-0083-y.
6. Basavegowda, N., and Lee, Y. R. (2013). Synthesis of silver nanoparticles using Satsuma mandarin (Citrus unshiu) peel extract: a novel approach towards waste utilization. Mater. Lett. 109, 31-33. doi: 10.1016/j.matlet.2013.07.039.
7. Bhakya, S., Muthukrishnan, S., Sukumaran, M., Grijalva, M., Cumbal, L., Franklin-Benjamin, J. H., et al. (2016). Antimicrobial, antioxidant and anticancer activity of biogenic silver nanoparticles-an experimental report. RSC Adv. 6, 81436-81446. doi: 10.1039/C6RA17569D.
8. Birla, S. S., Tiwari, V. V., Gade, A. K., Ingle, A. P., Yadav, A. P., and Rai, M. K. (2009). Fabrication of silver nanoparticles by Phoma glomerata and its combined effect against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. Lett. Appl. Microbiol. 48, 173-179. doi: 10.1111/j.1472-765X.2008.02510.x.
9. Chandran, K., Song, S., and Yun, S. I. (2014). Effect of size and shape controlled biogenic synthesis of gold nanoparticles and their mode of interactions against food borne bacterial pathogens. Arabian J. Chem. doi: 10.1016/j.arabjc.2014.11.041.
10. Choi, Y., Ho, N., and Tung, C. (2007). Sensing phosphatase activity by using gold nanoparticles. Angew. Chem. Int. Ed. Engl. 46, 707-709. doi: 10.1002/anie.200603735.
11. Das, J., Paul Das, M., and Velusamy, P. (2013). Sesbania grandiflora leaf extract mediated green synthesis of antibacterial silver nanoparticles against selected human pathogens. Spectrochim. Acta A Mol. Biomol. Spectrosc. 104, 265-270. doi: 10.1016/j.saa.2012.11.075.
12. Deng, H., McShan, D., Zhang, Y., Sinha, S. S., Arslan, Z., Ray, P. C., et al. (2016). Mechanistic study of the synergistic antibacterial activity of combined silver nanoparticles and common antibiotics. Environ. Sci. Technol. 50, 8840-8848. doi: 10.1021/acs.est.6b00998.
13. Devi, L. S., and Joshi, S. R. (2012). Antimicrobial and synergistic effects of silver nanoparticles synthesized using soil fungi of high altitudes of eastern Himalaya. Mycobiology 40, 27-34. doi: 10.5941/MYCO.2012.40.1.027.
14. Diao, W. R., Hu, Q. P., Feng, S. S., Li, W. Q., and Xu, J. G. (2013). Chemical composition and antibacterial activity of the essential oil from green huajiao (Zanthoxylum schinifolium) against selected foodborne pathogens. J. Agric. Food Chem. 61, 6044-6049. doi: 10.1021/jf4007856.
15. El-Rafie, H. M., and Abdel-Aziz Hamed, M. (2014). Antioxidant and anti-inflammatory activities of silver nanoparticles biosynthesized from aqueous leaves extracts of four Terminalia species. Adv. Nat. Sci. 5:035008.
16. Fayaz, A. M., Balaji, K., Girilal, M., Yadav, R., Kalaichelvan, P. T., and Venketesan, R. (2010). Biogenic synthesis of silver nanoparticles and their synergistic effect with antibiotics: a study against gram-positive and gram-negative bacteria. J. Nanomed. Nanotechnol. 6, 103-109. doi: 10.1016/j.nano.2009.04.006.
17. Feng, N., Guo, X., and Liang, S. (2009). Adsorption study of copper (II) by chemically modified orange peel. J. Hazard. Mater. 164, 1286-1292. doi: 10.1016/j.jhazmat.2008.09.096.
18. Finnigan, B. (2009). "Barrier polymers," in The Wiley Encyclopedia of Packaging Technology, ed. K. L. Yam (New York, NY: John Wiley & Sons), 103-109.
19. Gajbhiye, M., Kesharwani, J., Ingle, A., Gade, A., and Rai, M. (2009). Fungus-mediated synthesis of silver nanoparticles and their activity against pathogenic fungi in combination with fluconazole. Nanomedicine 5, 382-386. doi: 10.1016/j.nano.2009.06.005.
20. Geddes, J. R., Carney, S. M., Davies, C., Furukawa, T. A., Kupfer, D. J., Frank, E., et al. (2003). Relapse prevention with antidepressant drug treatment in depressive disorders: a systematic review. Lancet 361, 653-661. doi: 10.1016/S0140-6736(03)12599-8.
21. Ghosh, P. K., Saxena, T. K., Gupta, R., Yadav, R. P., and Davidson, S. (1996). Microbial lipases: production and applications. Sci. Prog. 79, 119-157.
22. Ghosh, S., Patil, S., Ahire, M., Kitture, R., Jabgunde, A., Kale, S., et al. (2011). Synthesis of gold nanoanisotrops using Dioscorea bulbifera tuber extract. J. Nanomater. 45, 1-8. doi: 10.1155/2011/354793.
23. Gibbins, B., and Warner, L. (2005). The role of antimicrobial silver nanotechnology. Med. Device Diagn. Ind. Mag. 1, 1-2.
24. Gopinath, V., MubarakAli, D., Priyadarshini, S., Priyadharsshini, N. M., Thajuddin, N., and Velusamy, P. (2012). Biosynthesis of silver nanoparticles from Tribulus terrestris and its antimicrobial activity: a novel biological approach. Colloids Surf. B Biointerfaces 96, 69-74. doi: 10.1016/j.colsurfb.2012.03.023.
25. Gopukumar, S. T., Sana-Fathima, T. K., Alexander, P., Alex, V., and Praseetha, P. K. (2016). Evaluation of antioxidant properties of silver nanoparticle embedded medicinal patch. Nanomed. Nanotech. Op. Acc. 1:NNOA-MS-ID-000101.
26. Guzman, M., Dille, J., and Godet, S. (2012). Synthesis and antibacterial activity of silver nanoparticles against gram-positive and gram-negative bacteria. Nanomed. Nanotechnol. Biol. Med. 8, 37-45. doi: 10.1016/j.nano.2011.05.007.
27. Hamouda, T., and Baker, J. R. Jr. (2000). Antimicrobial mechanism of action of surfactant lipid preparations in enteric gram-negative bacilli. J. Appl. Microbiol. 89, 397-403. doi: 10.1046/j.1365-2672.2000.01127.x.
28. Huh, A. J., and Kwon, Y. J. (2011). "Nanoantibiotics": a new paradigm for treating infectious diseases using nanomaterials in the antibiotics resistant era. J. Control. Release 156, 128-145. doi: 10.1016/j.jconrel.2011.07.002.
29. Hwang, I., Hwang, J. H., Choi, H., Kim, K. J., and Lee, D. G. (2012). Synergistic effects between silver nanoparticles and antibiotics and the mechanisms involved. J. Med. Microbiol. 61, 1719-1726. doi: 10.1099/jmm.0.047100-0.
30. Jain, P. K., Huang, X., El-Sayed, I. H., and El-Sayed, M. A. (2008). Noble metals on the nanoscale: optical and photothermal properties and some applications in imaging, sensing, biology, and medicine. Acc. Chem. Res. 41, 1578-1586. doi: 10.1021/ar7002804.
31. Jiang, H., Manolache, S., Lee-Wong, C., and Denis, F. S. (2004). Plasma-enhanced deposition of silver nanoparticles onto polymer and metal surfaces for the generation of antimicrobial characteristics. J. Appl. Polymer Sci. 93, 1411-1422. doi: 10.1002/app.20561.
32. Kelly, K. L., Coronado, E., Zhao, L. L., and Schatz, G. C. (2003). The optical properties of metal nanoparticles: the influence of size, shape, and dielectric environment. J. Phys. Chem. B 107, 668-677. doi: 10.1021/jp026731y.
33. Khan, Z. U., Chandy, R., and Metwali, K. E. (2003). Candida albicans strain carriage in patients and nursing staffof an intensive care unit: a study of morphotypes and resistotypes. Mycoses 46, 476-486. doi: 10.1046/j.0933-7407.2003.00929.x.
34. Khurana, C., Vala, A. K., Andhariya, N., Pandey, O. P., and Chudasama, B. (2014). Antibacterial activities of silver nanoparticles and antibiotic-adsorbed silver nanoparticles against biorecycling microbes. Environ. Sci. Proc. Impact 16, 2191-2198. doi: 10.1039/c4em00248b.
35. Konstantopoulou, M. A., Krokos, F. D., and Mazomenos, B. E. (2004). Chemical composition of corn leaf essential oils and their role in the oviposition behavior of Sesamia nonagrioides females. J. Chem. Ecol. 30, 2243-2256. doi: 10.1023/B:JOEC.0000048786.12136.40.
36. Kora, A. J., and Arunachalam, J. (2011). Assessment of antibacterial activity of silver nanoparticles on Pseudomonas aeruginosa and its mechanism of action. World J. Microbiol. Biotechnol. 27, 1209-1216. doi: 10.1007/s11274-010-0569-2.
37. Kubo, I., Fujita, K., Kubo, A., Nihei, K., and Ogura, T. (2004). Antibacterial activity of coriander volatile compounds against Salmonella choleraesuis. J. Agric. Food Chem. 52, 3329-3332. doi: 10.1021/jf0354186.
38. Kumar, A., Vemula, P. K., Ajayan, P. M., and John, G. (2008). Silver-nanoparticle-embedded antimicrobial paints based on vegetable oil. Nat. Mater. 7, 236-241. doi: 10.1038/nmat2099.
39. Kumar, V., and Yadav, S. K. (2009). Plant-mediated synthesis of silver and gold nanoparticles and their applications. J. Chem. Technol. Biotechnol. 84, 151-157. doi: 10.1002/jctb.2023.
40. Kumari, M. M., and Philip, D. (2013). Facile one-pot synthesis of gold and silver nanocatalysts using edible coconut oil. Spectrochim. Acta A. Mol. Biomol. Spectrosc. 111, 154-160. doi: 10.1016/j.saa.2013.03.076.
41. Lansdown, A. B. G. (2004). A review of the use of silver in wound care: facts and fallacies. Br. J. Nurs. 13, 6-19. doi: 10.12968/bjon.2004.13.Sup1.12535.
42. Lara, H. H., Garza-Trevino, E. N., Ixtepan-Turrent, L., and Singh, D. K. J. (2011). Silver nanoparticles are broad-spectrum bactericidal and virucidal compounds. J. Nanobiotechnol. 9:30. doi: 10.1186/1477-3155-9-30.
43. Lara, H. H., Romero-Urbina, D. G., Pierce, C., Lopez-Ribot, J. L., Arellano-Jimenez, M. J., and Jose-Yacaman, M. (2015). Effect of silver nanoparticles on Candida albicans biofilms: an ultrastructural study. J. Nanobiotechnol. 13:91. doi: 10.1186/s12951-015-0147-8.
44. Levy, S. B. (1998). The challenge of antibiotic resistance. Sci. Am. 3, 32-39.
45. Li, P., Li, J., Wu, C., Wu, Q., and Li, J. (2005). Synergistic antibacterial effects of β-lactam antibiotic combined with silver nanoparticles. Nanotechnology 16:1912. doi: 10.1088/0957-4484/16/9/082.
46. Makhija, I. K., Aswatha-Ram, H. N., Shreedhara, C. S., Vijay Kumar, S., and Devkar, R. (2011). In vitro antioxidant studies of sitopaladi churna, a polyherbal ayurvedic formulation. Free Radic. Antioxid. 1, 37-41. doi: 10.5530/ax.2011.2.8.
47. Marini, M., De Niederhausern, N., Iseppi, R., Bondi, M., Sabia, C., Toselli, M., et al. (2007). Antibacterial activity of plastics coated with silver-doped organic-inorganic hybrid coatings prepared by sol-gel processes. Biomacromolecules 8, 1246-1254. doi: 10.1021/bm060721b.
48. Matei, A., Cernica, I., Cadar, O., Roman, C., and Schiopu, V. (2008). Synthesis and characterization of ZnO-polymer nanocomposites. Int. J. Mater. Form. 1, 767-770. doi: 10.1007/s12289-008-0288-5.
49. McShan, D., Zhang, Y., Deng, H., Ray, P. C., and Yu, H. (2015). Synergistic antibacterial effect of silver nanoparticles combined with ineffective antibiotics on drug resistant Salmonella typhimurium DT104. J. Environ. Sci. Health. C Environ. Carcinog. Ecotoxicol. Rev. 33, 369-384. doi: 10.1080/10590501.2015.1055165.
50. Mohanpuria, P., Rana, N. K., and Yadav, S. K. (2008). Biosynthesis of nanoparticles: technological concepts and future applications. J. Nanopart. Res. 10, 507-517. doi: 10.1111/j.1460-9568.2009.06927.x.
51. Monteiro, D. R., Silva, S., Negri, M., Gorup, L. F., de Camargo, E. R., Oliveira, R., et al. (2013). Antifungal activity of silver nanoparticles in combination with nystatin and chlorhexidine digluconate against Candida albicans and Candida glabrata biofilms. Mycoses 56, 672-680. doi: 10.1111/myc.12093.
52. Morones, J., Elechiguerra, J., Camacho, A., Holt, K., Kouri, J., Ramirez, J., et al. (2005). The bactericidal effect of silver nanoparticles. Nanotechnology 16,k2346-2353. doi: 10.1088/0957-4484/16/10/059.
53. Murray, P. R., Baron, E. J., Pfaller, M. A., Tenover, F. C., and Yolke, R. H. (1995). Manual of Clinical Microbiology, 6th Edn. Washington, DC: ASM Press.
54. Muthukrishnan, S., Bhakya, S., Senthil Kumar, T., and Rao, M. V. (2015). Biosynthesis, characterization and antibacterial effect of plant-mediated silver nanoparticles using Ceropegia thwaitesii-an endemic species. Ind. Crop. Prod. 63, 119-124. doi: 10.1016/j.indcrop.2014.10.022.
55. Nair, L. S., and Laurencin, C. T. (2007). Silver nanoparticles: synthesis and therapeutic applications. J. Biomed. Nanotechnol. 3, 301-316. doi: 10.1166/jbn.2007.041.
56. Naqvi, S. Z. H., Kiran, U., Ali, M. I., Jamal, A., Hameed, A., Ahmed, S., et al. (2013). Combined efficacy of biologically synthesized silver nanoparticles and different antibiotics against multidrug-resistant bacteria. Int. J. Nanomed. 8, 3187-3195. doi: 10.2147/IJN.S49284.
57. Natarajan, K., Selvaraj, S., and Ramachandra, M. V. (2010). Microbial production of silver nanoparticles. Dig. J. Nanomater. Biostruct. 5, 135-140.
58. Nazeruddin, G. M., Prasad, N. R., Prasad, S. R., Shaikh, Y. I., Waghmare, S. R., and Adhyapakca, P. (2014). Coriandrum sativum seed extract assisted in situ green synthesis of silver nanoparticle and its anti-microbial activity. Ind. Crop. Prod. 60, 212-216. doi: 10.1016/j.indcrop.2014.05.040.
59. Nezamdoost, T., Bagherieh-Najjarn, M. B., and Aghdasi, M. (2014). Biogenic synthesis of stable bioactive silver chloride nanoparticles using Onosma dichroantha Boiss. root extract. Mater. Lett. 137, 225-228. doi: 10.1016/j.matlet.2014.08.134.
60. Ouay, B., and Stellacci, F. (2015). Antibacterial activity of silver nanoparticles: a surface science insight. Nano Today 10, 339-354. doi: 10.1016/j.nantod.2015.04.002.
61. Ovington, L. G. (2004). The truth about silver. Ostomy Wound Manage. 50, 1-10.
62. Pal, S., Tak, Y. K., and Song, J. M. (2007). Does the antibacterial activity of silver nanoparticles depend on the shape of the nanoparticle? A study of the Gram-negative bacterium Escherichia coli. Appl. Environ. Microbiol. 73, 1712-1720.
63. Panacek, A., Kolar, M., Vecerova, R., Prucek, R., Soukupova, J., Krystof, V., et al. (2009). Antifungal activity of silver nanoparticles against Candida spp. Biomaterials 30, 6333-6340. doi: 10.1016/j.biomaterials.2009.07.065.
64. Panacek, A., Kvitek, L., Prucek, R., Kolar, M., Vecerova, R., Pizurova, N., et al. (2006). Silver colloid nanoparticles: synthesis, characterization, and their antibacterial activity. J. Phys. Chem. B 110, 16248-16253. doi: 10.1021/jp063826h.
65. Panacek, A., Smekalova, M., Kilianova, M., Prucek, R., Bogdanova, K., Vecerova, R., et al. (2016). Strong and nonspecific synergistic antibacterial efficiency of antibiotics combined with silver nanoparticles at very low concentrations showing no cytotoxic effect. Molecules 21:26. doi: 10.3390/molecules21010026.
66. Pandey, R., Singh, A., Maurya, S., Singh, U. P., and Singh, M. (2013). Phenolic acids in different preparations of Maize (Zea mays) and their role in human health. Int. J. Curr. Microbiol. App. Sci. 2, 84-92.
67. Patra, J. K., Kim, S. H., and Baek, K. H. (2015). Antioxidant and free radical-scavenging potential of essential oil from Enteromorpha linza L. prepared by microwave-assisted hydrodistillation. J. Food Biochem. 39, 80-90. doi: 10.1111/jfbc.12110.
68. Qiu, L., Liu, F., Zhao, L., Yang, W., and Yao, J. (2006). Evidence of a unique electron donor-acceptor property for platinum nanoparticles as studied by XPS. Langmuir 22, 4480-4482. doi: 10.1021/la053071q.
69. Raffi, M., Hussain, F., Bhatti, T. M., Akhter, J. I., Hameed, A., and Hasan, M. M. (2008). Antibacterial characterization of silver nanoparticles against E. coli ATCC-15224. J. Mater. Sci. Technol. 24, 192-196.
70. Rai, M. K., Deshmukh, S. D., Ingle, A. P., and Gade, A. K. (2012). Silver nanoparticles: the powerful nanoweapon against multidrug-resistant bacteria. J. Appl. Microbiol. 112, 841-852. doi: 10.1111/j.1365-2672.2012.05253.x.
71. Rajeshkumar, S., and Malarkodi, C. (2014). In vitro antibacterial activity and mechanism of silver nanoparticles against foodborne pathogens. Bioinorg. Chem. Appl. 2014, 1-10. doi: 10.1155/2014/581890.
72. Ramamurthy, C. H., Padma, M., Daisy mariya samadanam, I., Mareeswaran, R., Suyavaran, A., Suresh Kumar, M., et al. (2013). The extra cellular synthesis of gold and silver nanoparticles and their free radical scavenging and antibacterial properties. Colloids Surf. B Biointerfaces 102, 808-815. doi: 10.1016/j.colsurfb.2012.09.025.
73. Ramesh, P. S., Kokila, T., and Geetha, D. (2015). Plant mediated green synthesis and antibacterial activity of silver nanoparticles using Emblica officinalis fruit extract. Spectrochim. Acta A Mol. Biomol. Spectrosc. 142, 339-343. doi: 10.1016/j.saa.2015.01.062.
74. Ramos-Escudero, F., Munoz, A. M., Alvarado-Ortiz, C., Alvarado, A., and Yanez, J. A. (2012). Purple corn (Zea mays L.) phenolic compounds profile and its assessment as an agent against oxidative stress in isolated mouse organs. J. Med. Food. 15, 206-215. doi: 10.1089/jmf.2010.0342.
75. Reidy, B., Haase, A., Luch, A., Dawson, K. A., and Lynch, I. (2013). Mechanisms of silver nanoparticle release, transformation and toxicity: a critical review of current knowledge and recommendations for future studies and applications. Materials 6, 2295-2350. doi: 10.3390/ma6062295.
76. Rhim, J. W., and Ng, P. K. W. (2007). Natural biopolymer-based nanocomposite films for packaging applications. Crit. Rev. Food. Sci. 47, 411-433. doi: 10.1080/10408390600846366.
77. Roy, K., Sarkar, C. K., and Ghosh, C. K. (2015). Photocatalytic activity of biogenic silver nanoparticles synthesized using potato (Solanum tuberosum) infusion. Spectrochem. Acta A Mol. Biomol. Spectrosc. 146, 286-291. doi: 10.1016/j.saa.2015.02.058.
78. Ruden, S., Hilpert, K., Berditsch, M., Wadhwani, P., and Ulrich, A. S. (2009). Synergistic interaction between silver nanoparticles and membrane-permeabilizing antimicrobial peptides. Antimicrob. Agents Chemother. 53, 3538-3540. doi: 10.1128/AAC.01106-08.
79. Saxena, A., Tripathi, R. M., Zafar, F., and Singh, P. (2012). Green synthesis of silver nanoparticles using aqueous solution of Ficus benghalensis leaf extract and characterization of their antibacterial activity. Mater. Lett. 67, 91-94. doi: 10.1016/j.matlet.2011.09.038.
80. Seil, J. T., and Webster, T. J. (2012). Antimicrobial applications of nanotechnology: methods and literature. Int. J. Nanomed. 7, 2767-2781. doi: 10.2147/IJN.S24805.
81. Shahverdi, A. R., Fakhimi, A., Shahverdi, H. R., and Minaian, M. S. (2007). Synthesis and effect of silver nanoparticles on the antibacterial activity of different antibiotics against Staphylococcus aureus and Escherichia coli. Nanomed. Nanotechnol. Biol. Med. 3, 168-171. doi: 10.1016/j.nano.2007.02.001.
82. Shaik, S., Kummara, M. R., Poluru, S., Allu, C., Gooty, J. M., Kashayi, C. R., et al. (2013). A green approach to synthesize silver nanoparticles in starch-co-poly(acrylamide) hydrogels by Tridax procumbens leaf extract and their antibacterial activity. Int. J. Carbohydrate. Chem. 2013:539636. doi: 10.1155/2013/539636.
83. Sharma, V. K., Yngard, R. A., and Lin, Y. (2009). Silver nanoparticles: green synthesis and their antimicrobial activities. Adv. Colloid Interface. Sci. 145, 83-96. doi: 10.1016/j.cis.2008.09.002.
84. Singh, K., Panghal, M., Kadyan, S., Chaudhary, U., and Yadav, J. P. (2014). Antibacterial activity of synthesized silver nanoparticles from Tinospora cordifolia against multi drug resistant strains of Pseudomonas aeruginosa isolated from burn patients. J. Nanomed. Nanotechnol. 5:192. doi: 10.4172/2157-7439.1000192.
85. Solihah, M. A., Wan Rosli, W. I., and Nurhanan, A. R. (2012). Phytochemicals screening and total phenolic content of Malaysian Zea mays hair extracts. Int. Food Res. J. 19, 1533-1538.
86. Sondi, I., and Salopek-Sondi, B. (2004). Silver nanoparticles as antimicrobial agent: a case study on E. coli as a model for gram-negative bacteria. J. Colloid Interface. Sci. 275, 177-182. doi: 10.1016/j.jcis.2004.02.012.
87. Sun, L., Zhang, J., Lu, X., Zhang, L., and Zhang, Y. (2011). Evaluation to the antioxidant activity of total flavonoids extract from persimmon (Diospyros kaki L.) leaves. Food Chem. Toxicol. 49, 2689-2696. doi: 10.1016/j.fct.2011.07.042.
88. Suriya, J., Bharathi-Raja, S., Sekar, V., and Rajasekaran, R. (2012). Biosynthesis of silver nanoparticles and its antibacterial activity using seaweed Urospora sp. Afr. J. Biotechnol. 11, 12192-12198. doi: 10.5897/AJB12.452.
89. Swamy, M. K., Mohanty, S. K., Jayanta, K., and Subbanarasiman, B. (2015). The green synthesis, characterization, and evaluation of the biological activities of silver nanoparticles synthesized from Leptadenia reticulata leaf extract. Appl. Nanosci. 5, 73-81. doi: 10.1007/s13204-014-0293-6.
90. Thaipong, K., Boonprakob, U., Crosby, K., Cisneros-Zevallos, L., and Byrne, D. H. (2006). Comparison of ABTS, DPPH, FRAP, and ORAC assays for estimating antioxidant activity from guava fruit extracts. J. Food Comp. Anal. 19, 669-675.
91. Ullah, I., Ali, M., and Farooqi, A. (2010). Chemical and nutritional properties of some maize (Zea mays L.) varieties grown in NWFP, Pakistan. Pakistan J. Nutr. 9, 1113-1117. doi: 10.3923/pjn.2010.1113.1117.
92. Valli, J. S., and Vaseeharan, B. (2012). Biosynthesis of silver nanoparticles by Cissus quadrangularis extracts. Mater. Lett. 82, 171-173. doi: 10.1016/j.matlet.2012.05.040.
93. Vazquez-Munoz, R., Avalos-Borja, M., and Castro-Longoria, E. (2014). Ultrastructural analysis of Candida albicans when exposed to silver nanoparticles. PLoS ONE 9:e108876. doi: 10.1371/journal.pone.0108876.
94. Velusamy, P., Das, J., Pachaiappan, R., Vaseeharan, B., and Pandian, K. (2015). Greener approach for synthesis of antibacterial silver nanoparticles using aqueous solution of neem gum (Azadirachta indica L.). Ind. Crop. Prod. 66, 103-109. doi: 10.1016/j.indcrop.2014.12.042.
95. Vijaykumar, M., Priya, K., Nancy, F. T., Noorlidah, A., and Ahmad, A. B. A. (2013). Biosynthesis, characterization and anti-bacterial effect of plant-mediated silver nanoparticles using A. Nilgirica. Ind. Crops Prod. 41, 235-240. doi: 10.1016/j.indcrop.2012.04.017.
96. Vilchis-Nestor, A. R., Sanchez-Mendieta, V., Camacho-Lopez, M. A., Gomez-Espinosa, R. M., Camacho-Lopez, M. A., and Arenas-Alatorre, J. A. (2008). Solvent less synthesis and optical properties of Au and Ag nanoparticles using Camellia sinensis extract. Mater. Lett. 62, 3103-3105. doi: 10.1016/j.matlet.2008.01.138.
97. Wu, N., Fu, L., Aslam, M., Wong, K. C., and Dravid, V. W. (2004). Interaction of fatty acid monolayers with cobalt nanoparticles. Nano Lett. 4, 383-386. doi: 10.1021/nl035139x.
98. Yousefzadi, M., Rahimi, Z., and Ghafori, V. (2014). The green synthesis, characterization and antimicrobial activities of silver nanoparticles synthesized from green alga Enteromorpha flexuosa (wulfen) J. Agardh. Mater. Lett. 137, 1-4. doi: 10.1016/j.matlet.2014.08.110.
99. Zargar, M., Shameli, S., Reza Najafi, G., and Farahani, F. (2014). Plant mediated green biosynthesis of silver nanoparticles using Vitex negundo L. extract. J. Ind. Eng. Chem. 20, 4169-4175. doi: 10.3390/molecules16086667.
100. 2 with enhanced photocatalytic and bactericidal activities. Langmuir 19, 10372-10380. doi: 10.1021/la035330m.
101. Zhang, W., Qiao, X., Chen, J., and Wang, H. (2006). Preparation of silver nanoparticles in water-in-oil AOT reverse micelles. J. Colloid Interface Sci. 302, 370-373. doi: 10.1016/j.jcis.2006.06.035.