‘Green’ synthesis and optical properties of silver–chitosan complexes and nanocomposites

Božanić, Dušan K.; Trandafilović, Lidija V.; Luyt, A. S.; Djoković, Vladimir

doi:10.1016/j.reactfunctpolym.2010.08.001

Cited by 98 publications

(55 citation statements)

References 37 publications

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“…showed intensive peaks at 3333, 2928, 2361, 1600, 1357 and 1028 cm -1 , respectively. The sharp peak at 3333 cm -1 can be assigned to N-H stretching of the primary amines and the peak at 2928 cm -1 corresponding to C-H stretching of methylene groups of the protein (Bozanic et al 2010). The peak at 2361 cm -1 could be assigned to N-H stretching or C-O stretching vibrations (Ashok et al 2010).…”

Section: Ftir Spectra Analysismentioning

confidence: 99%

Biogenic silver nanoparticles: efficient and effective antifungal agents

et al. 2015

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Biogenic synthesis of silver nanoparticles (AgNPs) by exploiting various plant materials is an emerging field and considered green nanotechnology as it involves simple, cost effective and ecofriendly procedure. In the present study AgNPs were successfully synthesized using aqueous callus extract of Gymnema sylvestre. The aqueous callus extract treated with 1nM silver nitrate solution resulted in the formation of AgNPs and the surface plasmon resonance (SPR) of the formed AgNPs showed a peak at 437 nm in the UV Visible spectrum. The synthesized AgNPs were characterized using Fourier transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM), and X-ray diffraction spectroscopy (XRD). FTIR spectra showed the peaks at 3333, 2928, 2361, 1600, 1357 and 1028 cm -1 which revealed the role of different functional groups possibly involved in the synthesis and stabilization of AgNPs. TEM micrograph clearly revealed the size of the AgNPs to be in the range of 3-30 nm with spherical shape and poly-dispersed nature; it is further confirmed by Particle size analysis that the stability of AgNPs is due its high negative Zeta potential (-36.1 mV). XRD pattern revealed the crystal nature of the AgNPs by showing the braggs peaks corresponding to (111), (200), (220) and (311) planes of face-centered cubic crystal phase of silver. Selected area electron diffraction pattern showed diffraction rings and confirmed the crystalline nature of synthesized AgNPs. The synthesized AgNPs exhibited effective antifungal activity against Candida albicans, Candida nonalbicans and Candida tropicalis.

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Section: Ftir Spectra Analysismentioning

confidence: 99%

Biogenic silver nanoparticles: efficient and effective antifungal agents

et al. 2015

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“…Once the reduction occurred, the polysaccharide chains impair the aggregation of the nanoparticles. Chitosan (Božanić et al, 2010;Travan et al, 2009), starch (Raveendran et al, 2006), gum arabic (Gils et al, 2010) and alginate (Jaouen et al, 2010) are some examples of polysaccharides that were reported as stabilizing agents for the synthesis of metal nanoparticles. In addition to their ability to complex metal ions, polysaccharides may also exhibit reducing properties and thus can play the role of reducing and stabilizing agent in the synthesis of metal nanoparticles.…”

Section: Metal Nanoparticlesmentioning

confidence: 99%

Biofunctional Composites of Polysaccharides Containing Inorganic Nanoparticles

Trindade¹,

Daniel‐da‐Silva²

2011

Advances in Nanocomposite Technology

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“…Recent studies reported about direct dispersion of AgNPs into chitosan matrix for antibacterial applications [9]. However, common methods involve the chemical reduction of silver salts by different reducing agents such as NaBH 4 , sodium citrate, or ascorbic acid [10][11][12].…”

Section: Introductionmentioning

confidence: 99%