Biosynthesis of silver nanoparticles using ethanolic petals extract of Rosa indica and characterization of its antibacterial, anticancer and anti-inflammatory activities

Manikandan, R.; Balakrishnan, M.; Raman, Thiagarajan; Koodalingam, Arunagirinathan; Prabhu, Nagesh; Basu, Muthuramalingam Jothi; Perumal, Muthulakshmi; Palanisamy, Subramanian; Arumugam, Muthu

doi:10.1016/j.saa.2014.10.043

Cited by 169 publications

(70 citation statements)

References 40 publications

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“…A large number of plant leaf extracts like Cinnamomum camphora [16], Chenopodium album [17], Stevia rebaudiana [18], Murraya koenigii [19], Annona squamosal [20], Desmodium gangeticum [21], Pulicaria glutinosa [22], Brucea javanica [23], Artocarpus heterophyllus [24], Caesalpinia coriaria [25], Abutilon indicum [26], Rosa indica [27], Tephrosia tinctoria [28] have been employed by several researchers for the synthesis of silver nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticles using phlomis leaf extract and investigation of their antibacterial activity

et al. 2016

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In recent years, the green synthesis of silver nanoparticles using various plant extracts has attracted great attention. This is because, these methods are simple, inexpensive and, eco-friendly. In this study, it was observed that silver ions were reduced by phlomis leaf extract after 5 min, leading to the formation of crystalline silver nanoparticles. Phlomis species is known as a rich source of flavonoids, phenylpropanoids and other phenolic compounds. The silver nanoparticles produced by the phlomis extract were characterized by different techniques including UV-vis spectrophotometry, X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and FT-IR. The SEM and TEM results indicated that AgNPs were predominantly spherical in shape with an average particle size of 25 nm. In addition, the antibacterial activity of biologically synthesized nanopartilcles against Gram-positive (Staphyloccocus aureus and Bacillus cereus) and Gram-negative (Salmonella typhimurium and Escherichia coli) bacteria was proved. This study, therefore, showed that the phlomis leaf extract could be used for the green synthesis of silver nanoparticles with the appropriate antibacterial activity.

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Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticles using phlomis leaf extract and investigation of their antibacterial activity

et al. 2016

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“…Accordingly, nanoparticles sized over 10 nm have not been associated with cytotoxic effects (30). Previous studies suggested that zinc oxide nanoparticles sized between 60-100 nm and chitosan are useful as intracanal medication with a desirable antibacterial activity against E. faecalis (31).…”

Section: Discussionmentioning

confidence: 99%

Antibacterial Efficacy of a Dispersion of Silver Nanoparticles in Citrate Medium for the Treatment of E. faecalis: an In Vitro Study

Rodríguez

Ramírez-Mora

Montero

et al. 2016

Odovtos - Int J Dent Sc

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The purpose of this study was to measure the antibacterial efficacy of a dispersion of silver nanoparticles (AgNP) in a citrate medium tested in two E. faecalis strains. AgNP were synthesized, and AgNP citrate medium (AgNP-CM) dispersion was prepared at a concentration of 100 μg/mL. The antibacterial efficacy of AgNP-CM dispersion was evaluated over two E. faecalis strains: ATCC29212 and a wild strain collected from human necrotic teeth. 5% sodium hypochlorite (NaOCl) and sterile saline solution were used as positive and negative controls. 5 and 30-minute contact tests were conducted and each experimental group were replicated 10 times. After 24 hours of incubation, the Log CFU/ mL were calculated. The AgNP obtained showed spherical shapes and had 30-60nm size. 5% NaOCl was able to completely eliminate both E. faecalis strains in all groups, showing a significant statistical difference when compared to AgNP-CM dispersion and negative control groups. AgNP-CM dispersion showed a statistically significant decrease in Log CFU/mL averages (p=0,0006) when compared to the sterile saline solution for the ATCC29212 strain during the 30-minute time. Between the 5-minute and 30-minute groups, a significant bacterial count decrease was also observed (p= 0,0128). The antibacterial efficacy of the dispersion was greater for the ATCC29212 strain than the wild strain, were the effect diminished. AgNP-CM dispersion showed a significantly lower antibacterial efficacy against E. faecalis than the 5% NaOCl at the tested times. RESUMENEl propósito del presente estudio fue medir la eficacia antibacteriana de una dispersión de nanopartículas de plata (AgNP) en medio de citrato ante dos cepas de E. faecalis. Las AgNP fueron sintetizadas y se preparó una dispersión en medio de citrato (AgNP-CM) en una concentración de 100 μg/mL. La eficacia antibacteriana de la dispersión de AgNP-CM fue evaluada ante dos cepas de E. faecalis: la ATCC29212 pura y una cepa silvestre aislada de un tratamiento endodóntico fallido. Se utilizó hipoclorito de sodio al 5% de concentración (NaOCl) y solución salina estéril como controles positivos y negativos. Se realizaron pruebas de contacto durante 5 y 30 minutos y cada grupo experimental se replicó 10 veces. Después de incubar las muestras durante 24 horas, se calcularon las concentraciones Log CFU/mL. Las AgNP obtenidas mostraron formas esféricas y un tamaño entre los 30 y 60nm. El NaOCl 5% logró eliminar por completo las cepas bacterianas en todos los grupos, mostrando una diferencia estadísticamente significativa al compararse con las dispersiones de AgNP-CM y los controles negativos. La dispersión de AgNP-CM mostró una disminución estadísticamente significativa en los promedios Log CFU/mL al compararse con la solución salina estéril para la cepa ATCC29212 a los 30 minutos de contacto. Entre los grupos de 5 y 30 minutos de la dispersión, se observó también una disminución en el conteo bacteriano (p=0,0128). La eficacia antibacteriana de la dispersión fue mayor para la cepa ATCC29212 que para la c...

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“…Currently, a large number of methods like biological ones can be used to synthesize different types of nanoparticles [134]. In order to avoid adverse effects during synthesis and application of nanoparticles, there is a growing need to develop eco-friendly and sustainable methods for synthesizing nanomaterials that do not use toxic chemicals during the process [135]. Nowadays, green synthesis of metallic nanoparticles is a growing area of research because of their potential applications in different domains [134].…”

Section: Metallic Nanoparticles Methodsmentioning

confidence: 99%

Recent advances in the identification and the study of composition and activities of medicinal plants

2016

J Coast Life Med

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Biosynthesis of silver nanoparticles using ethanolic petals extract of Rosa indica and characterization of its antibacterial, anticancer and anti-inflammatory activities

Cited by 169 publications

References 40 publications

Green synthesis of silver nanoparticles using phlomis leaf extract and investigation of their antibacterial activity

Green synthesis of silver nanoparticles using phlomis leaf extract and investigation of their antibacterial activity

Antibacterial Efficacy of a Dispersion of Silver Nanoparticles in Citrate Medium for the Treatment of E. faecalis: an In Vitro Study

Recent advances in the identification and the study of composition and activities of medicinal plants

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