Abstract
Colloidal silver nanoparticles were synthesized by reducing silver nitrate solutions with glucose, in the presence of gelatin as capping agent. The obtained nanoparticles were characterized by means of UV–Vis spectroscopy, transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy. The response surface methodology (RSM) was also used to determine the influence of the variables on the size of the nanoparticles. The antifungal activity of the silver nanoparticles was evaluated on the phytopathogen Colletotrichum gloesporioides, which causes anthracnose in a wide range of fruits. The UV–Vis spectra indicated the formation of silver nanoparticles preferably spherical and of relatively small size (<20 nm). The above-mentioned was confirmed by TEM, observing a size distribution of 5–24 nm. According to RSM the synthesis variables influenced on the size of the silver nanoparticles. By means of FTIR spectroscopy it was determined that gelatin, through their amide and hydroxyl groups, interacts with nanoparticles preventing their agglomeration. The growth of C. gloesporioides in the presence of silver nanoparticles was significantly delayed in a dose dependent manner.








References
Azeredo HMC (2009) Nanocomposites for food packaging applications. Food Res Int 42:1240–1253
Baker CC, Pradhan A, Shah SI (2004) Metal nanoparticles. In: Nalwa HS (ed) Encyclopedia of nanoscience and nanotechnology. American Scientific Publishers, Stevenson Ranch, pp 449–473
Barnett H, Hunter BB (1972) Illustrated genera of imperfect fungi. Burgess Publishing Co, Broken Arrow
Basavaraja S, Balaji SD, Lagashetty A, Rajasab AH, Venkataraman A (2008) Extracellular biosynthesis of silver nanoparticles using the fungus Fusarium semitectum. Mater Res Bull 43:1164–1170
Bautista-Baños S, Hernández-López M, Bosquez-Molina E, Wilson CL (2003) Effects of chitosan and plant extracts on growth of Colletotrichum gloesporioides, anthracnose levels and quality of papaya fruit. Crop Prot 22:1087–1092
Cho JW, So JH (2006) Polyurethane–silver fibers prepared by infiltration and reduction of silver nitrate. Mater Lett 60:2653–2656
Cho K, Park J, Osaka T, Park S (2005) The study of antimicrobial activity and preservative effects of nanosilver ingredient. Electrochim Acta 51:956–960
Feng QL, Wu J, Chen GQ, Cui FZ, Kim TN, Kim JO (2000) A mechanistic study of the antibacterial effect of silver ions on Escherichia coli and Staphylococcus aureus. J Biomed Mater Res 52:662–668
Gamagae SU, Sivakumar D, Wilson Wijeratnam RS, Wijesundera RLC (2003) Use of sodium bicarbonate and Candida oleophila to control anthracnose in papaya during storage. Crop Prot 22:775–779
Guo Z, Xing R, Liu S, Zhong Z, Ji X, Wang L, Li P (2007) The influence of the cationic of quaternized chitosan on antifungal activity. Int J Food Microbiol 118:214–217
Jo Y, Kim BH, Jung G (2009) Antifungal activity of silver ions and nanoparticles on phytopathogenic fungi. Plant Dis 93:1037–1043
Kim SW, Kim KS, Lamsal K, Kim Y, Kim SB, Jung M, Sim S, Kim H, Chang S, Kim JK, Lee YS (2009) An in vitro study of the antifungal effect of silver nanoparticles on oak wilt pathogen Raffaelea sp. J Microbiol Biotechnol 19:760–764
Luo C, Zhang Y, Zeng X, Zeng Y, Wang Y (2005) The role of poly(ethylene glycol) in the formation of silver nanoparticles. J Colloid Interface Sci 288:444–448
Mitra A, Bhaumik A (2007) Nanoscale silver cluster embedded in artificial heterogeneous matrix consisting of protein and sodium polyacrylate. Mater Lett 61:659–662
Morones JR, Elechiguerra JL, Camacho A, Holt K, Kouri JB, Tapia-Ramirez J, Yacaman MJ (2005) The bactericidal effect of silver nanoparticles. Nanotechnology 16:2346–2353
Muñoz Z, Moret A, Garces S (2009) Assessment of chitosan for inhibition of Colletotrichum sp. on tomatoes and grapes. Crop Prot 28:36–40
Pal S, Tak YK, Song JM (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 Microb 73:1712–1720
Panacek A, Kolar M, Vecerova R, Prucek R, Soukupova J, Krystof V, Hamal P, Zboril R, Kvitek L (2009) Antifungal activity of silver nanoparticles against Candida spp. Biomaterials 30:6333–6340
Petica S, Gavriliu M, Lungu N, Buruntea PanzaruC (2008) Colloidal silver solutions with antimicrobial properties. Mat Sci Eng B 152:22–27
Sharma RR, Singh D, Singh R (2009) Biological control of postharvest diseases of fruits and vegetables by microbial antagonists: a review. Biol Control 50:205–221
Slistan-Grijalva A, Herrera-Urbina R, Rivas-Silva JF, Ávalos-Borja M, Castillón-Barraza FF, Posada-Amarillas A (2008) Synthesis of silver nanoparticles in a polyvinylpyrrolidone (PVP) paste, and their optical properties in a film and in ethylene glycol. Mater Res Bull 43:90–96
Sondi S, 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
Sun X, Luo Y (2005) Preparation and size control of silver nanoparticles by a thermal method. Mater Lett 59:3847–3850
Tan Y, Li Y, Zhu D (2004) Noble metal nanoparticles. In: Nalwa HS (ed) Encyclopedia of nanoscience and nanotechnology, vol 8. American Scientific Publishers, USA, pp 9–40
Acknowledgments
This work was financially supported by Consejo Nacional de Ciencia y Tecnología (CONACYT) through project no. 90019 and SIP project no. 20082511. The authors would like to thank Dr. Geonel Gattorno for the technical assistance in electron diffraction and FTIR.
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Aguilar-Méndez, M.A., San Martín-Martínez, E., Ortega-Arroyo, L. et al. Synthesis and characterization of silver nanoparticles: effect on phytopathogen Colletotrichum gloesporioides . J Nanopart Res 13, 2525–2532 (2011). https://doi.org/10.1007/s11051-010-0145-6
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DOI: https://doi.org/10.1007/s11051-010-0145-6