Green synthesis of xanthan conformation-based silver nanoparticles: Antibacterial and catalytic application

Xu, Wei; Jin, Weiping; Lin, Lih‐Chang; Zhang, Chunlan; Li, Zhenshun; Li, Yan; Song, Rong

doi:10.1016/j.carbpol.2013.10.032

Cited by 122 publications

(44 citation statements)

References 37 publications

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“…Moreover, these properties also affect multidrug-resistant microorganisms, according to our results and other published works [23,25,28]. As shown in Figure 2, The biosynthesis of AgNPs, with sizes between 5-40 nm and~9.1 nm, and their stabilization with xanthan gum, had already been reported by Xu et al and Emam and Zahran, respectively [14,21]. The present results indicate a more efficient biosynthesis of AgNPs due to their sizes, which are smaller than in the literature cited above.…”

Section: Antibacterial Activity Of the Silver Nanocompositesupporting

confidence: 89%

“…According to Palaniraj and Jayaraman, xanthan gum is industrially produced by bacterial fermentation and is used to stabilize suspensions of drugs such as dextromethorphan and thiabendazole [20]. The biosynthesis of AgNPs, with sizes between 5-40 nm and ~9.1 nm, and their stabilization with xanthan gum, had already been reported by Xu et al and Emam and Zahran, respectively [14,21]. The present results indicate a more efficient biosynthesis of AgNPs due to their sizes, which are smaller than in the literature cited above.…”

Section: Characterization Of the Silver Nanocomposite Biosynthesizedmentioning

confidence: 88%

“…Different authors synthesized similar AgNPs by the addition of silver nitrate to xanthan gum, however using a two-step methodology [14,19]. This means that in a first step xanthan gum is obtained, and in a second step the AgNPs are produced.…”

Section: Characterization Of the Silver Nanocomposite Biosynthesizedmentioning

confidence: 99%

“…Cao et al described an antimicrobial activity with a broad spectrum of action of AgNPs with chitosan and xanthan gum [13]. In this case, the complete inhibition of Escherichia coli and Staphylococcus aureus growth was described [14].…”

Section: Introductionmentioning

confidence: 99%

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Silver Nanocomposite Biosynthesis: Antibacterial Activity against Multidrug-Resistant Strains of Pseudomonas aeruginosa and Acinetobacter baumannii

et al. 2016

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Abstract:Bacterial resistance is an emerging public health issue that is disseminated worldwide. Silver nanocomposite can be an alternative strategy to avoid Gram-positive and Gram-negative bacteria growth, including multidrug-resistant strains. In the present study a silver nanocomposite was synthesized, using a new green chemistry process, by the addition of silver nitrate (1.10 −3 mol·L −1 ) into a fermentative medium of Xanthomonas spp. to produce a xanthan gum polymer. Transmission electron microscopy (TEM) was used to evaluate the shape and size of the silver nanoparticles obtained. The silver ions in the nanocomposite were quantified by flame atomic absorption spectrometry (FAAS). The antibacterial activity of the nanomaterial against Escherichia coli (ATCC 22652), Enterococcus faecalis (ATCC 29282), Pseudomonas aeruginosa (ATCC 27853) and Staphylococcus aureus (ATCC 25923) was carried out using 500 mg of silver nanocomposite. Pseudomonas aeruginosa and Acinetobacter baumannii multidrug-resistant strains, isolated from hospitalized patients were also included in the study. The biosynthesized silver nanocomposite showed spherical nanoparticles with sizes smaller than 10 nm; 1 g of nanocomposite contained 49.24 µg of silver. Multidrug-resistant strains of Pseudomonas aeruginosa and Acinetobacter baumannii, and the other Gram-positive and Gram-negative bacteria tested, were sensitive to the silver nanocomposite (10-12.9 mm of inhibition zone). The biosynthesized silver nanocomposite seems to be a promising antibacterial agent for different applications, namely biomedical devices or topical wound coatings.

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Section: Antibacterial Activity Of the Silver Nanocompositesupporting

confidence: 89%

Section: Characterization Of the Silver Nanocomposite Biosynthesizedmentioning

confidence: 88%

Section: Characterization Of the Silver Nanocomposite Biosynthesizedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Silver Nanocomposite Biosynthesis: Antibacterial Activity against Multidrug-Resistant Strains of Pseudomonas aeruginosa and Acinetobacter baumannii

et al. 2016

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“…Meanwhile, glucose is widely used as a green reducing agent becuase of its chemical reaction rate which allows a compromise between the nuclei created and the growth of the AgNPs [8][9] . Further, polysaccharide such as starch, chitosan and gums are used as the stabilizer in the preparation of AgNPs [4,10]. In some cases, polysaccharides serve as the reducing agent, capping agent and stabilizer.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Silver Nanoparticles Using Sago (Metroxylon Sagu) via Autoclaving Method

Jamaludin

Faizal

2018

IIUMEJ

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Sago (metroxylon sagu) is a polysaccharide bio resource, which is biodegradable and low in toxicity that can be found in large scale in Mukah, Sarawak. A simple green method of synthesizing silver nanoparticles (AgNPs) has been developed using sago dissolved in water as the reducing agent. The mixture of dissolved sago and silver nitrate (AgNO3) were autoclaved at 121 °C for 20 minutes. The size, morphology and structures of the AgNPs formed in the sago solution were investigated through UVVis spectrophotemeter, XRD and FESEM analysis. The synthesized AgNPs were spherical in shape and well distributed with average particle sizes of 19.3 ± 2.7 nm.ABSTRAK: Sago (Pokok Rumbia) adalah sumber bio polisakarida yang bioterurai dan rendah ketoksikan yang boleh didapati dalam skala yang besar di Mukah, Sarawak. Satu kaedah hijau yang mudah untuk mensintesis nanopartikel perak telah dihasilkan dengan menggunakan sagu yang larut dalam air sebagai ejen penurunan. Campuran sagu yang dilarutkan dan perak nitrat (AgNO3) telah autoklaf pada suhu 121°C selama 20 minit. Saiz, morfologi dan struktur nanopartikel perak yang terhasil di dalam larutan sago telah disiasat melalui analisis spektrofotometer UV-Vis, XRD dan FESEM. Nanopartikel perak yang dihasilkan adalah berbentuk bulat dengan purata saiz partikel 19.3 ± 2.7 nm.

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Noble Metal Nanoparticles and Their Antimicrobial Properties

Huo

2017

Metal Nanoparticles

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Green synthesis of xanthan conformation-based silver nanoparticles: Antibacterial and catalytic application

Cited by 122 publications

References 37 publications

Silver Nanocomposite Biosynthesis: Antibacterial Activity against Multidrug-Resistant Strains of Pseudomonas aeruginosa and Acinetobacter baumannii

Silver Nanocomposite Biosynthesis: Antibacterial Activity against Multidrug-Resistant Strains of Pseudomonas aeruginosa and Acinetobacter baumannii

Green Synthesis of Silver Nanoparticles Using Sago (Metroxylon Sagu) via Autoclaving Method

Noble Metal Nanoparticles and Their Antimicrobial Properties

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