Synthesis of poly acrylic acid modified silver nanoparticles and their antimicrobial activities

Ni, Zhihui; Wang, Zhihua; Sun, Lei; Li, Binjie; Zhao, Yanbao

doi:10.1016/j.msec.2014.04.059

Cited by 58 publications

(37 citation statements)

References 33 publications

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“…Continuous magnetic stirring refines PVA molecules of refreshed reaction surface in smaller molecule which operate a controlled Ag + to Ag reaction. PAA molecules stabilize the prepared Ag nanoparticles by means of COOH group and adsorbed on its surface . As is observed in the FTIR study of the composite membranes, both PVA and PAA interact with silver nanoparticle (utilizing OH and COOH groups, respectively), forming a protective layer and preventing nanoparticle aggregation.…”

Section: Resultsmentioning

confidence: 78%

“…This may be attributable to the interaction of silver nanoparticles with the PVA OH groups and the PAA COOH groups and the formation of hydrogen bonds . The increased intensity and broadening of peaks at 1390 and 1260 cm −1 was assigned to the symmetric and antisymmetric stretches of the COO − groups and it revealed that PAA molecules were adsorbed on the surface of silver nanoparticles through the bidentate band . Thus, the FTIR results imply that membrane hydrophilicity and rigidity were increased by the addition of silver nanoparticles to the PVA/PAA polymer matrix, because it shows hydrophilic character …”

Section: Resultsmentioning

confidence: 94%

“…It forms the complex COO − from PAA molecule. Additionally, while the in situ formation and growth of silver nanoparticles in the membrane matrix is due to the OH group of PVA, the adsorption of some PAA molecules on the surface of Ag nanoparticles creates electrostatic interactions with water, resulting in increased water affinity and hydrophilicity. IR analysis data for the corresponding membranes support this explanation.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

In Situ Generation of Silver Nanoparticles in Poly(Vinyl Alcohol)/Poly(Acrylic Acid) Polymer Membranes in the Absence of Reducing Agent and their Effect on Pervaporation of a Water/Acetic Acid Mixture

Chaudhari

Kwon

Moon

et al. 2016

Bulletin Korean Chem Soc

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The in situ generation of silver nanoparticles in a poly(vinyl alcohol)/poly(acrylic acid) (PVA/PAA) polymer matrix in the absence of any additional reducing agent is reported and tends to the membrane fabrication using solution‐casting. Its effect on the separation of a water/acetic acid mixture by pervaporation is described. The results of UV spectroscopy, scanning electron microscopy, and scanning electron microscopy/energy‐dispersive X‐ray spectroscopy analyses showed that the silver nanoparticles were successfully prepared and well dispersed in the polymer matrix. The increased hydrophilicity of the PVA/PAA membrane due to the presence of silver nanoparticles was confirmed by Fourier transform infrared spectroscopy, contact angle measurements, and membrane absorption studies. Pervaporation data for composite membranes showed a three‐fold increase in the flux value, while the initially decreased separation factor subsequently showed a constant value. Overall, the pervaporation data suggested that the presence of silver nanoparticles benefited the dehydration process.

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Section: Resultsmentioning

confidence: 78%

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

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In Situ Generation of Silver Nanoparticles in Poly(Vinyl Alcohol)/Poly(Acrylic Acid) Polymer Membranes in the Absence of Reducing Agent and their Effect on Pervaporation of a Water/Acetic Acid Mixture

Chaudhari

Kwon

Moon

et al. 2016

Bulletin Korean Chem Soc

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show abstract

“…The intensity of the peak current increases with the concentration of Ag NWs as more of these become attached to the electrode. 2e [31][32][33] In terms of their surface energy, fcc facets are usually ordered as follows: (111) < (100) < (110). Fig 1b shows that the larger Ag NWs are detected in the same peak potential and that the effect of the Ag NW size on the peak current according to the concentration is insignificant.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical monitoring of colloidal silver nanowires in aqueous samples

Kim

2015

Analyst

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Silver nanowires (NWs) are increasingly utilized in technological materials and consumer products, but an effective analytical technique is not yet available to measure their concentration in the environment. Here, we present an electrochemical method to quantify Ag NWs suspended in aqueous solution. Using linear sweep voltammetry, the Ag NWs are identified by the peak potential while their concentration is revealed by the intensity of the peak current. The peak current varies linearly with the Ag NW concentration with a low detection limit of 3.50 ng mL(-1). This method is also successfully applied to quantify Ag NWs in mixtures with nanoparticles, through their specific oxidation behavior, and in wastewater obtained after the Ag NW film preparation process.

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“…The main reaction of acrylic acid is polymerization; thus, it is commonly used in the production of plastics, paints, and adhesives. Due to these characteristics, Ag nanoparticles modified with polyacrylic acid was produced by the redox method showing excellent water solubility, stability, and biocompatibility, as well as antibacterial properties against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa [110]. Nanoparticles and formic acid have a similar role, since the electrochemical oxidation process of formic acid is an efficient energy supplier in direct formic acid fuel cells (DFAFCs) for mobile and portable applications [111][112][113].…”

Section: Nanomechanics 144mentioning

confidence: 99%

Green Synthesis of Metallic and Carbon Nanostructures

Hurtado¹,

Calderón‐Ayala²,

Cortez-Valadez³

et al. 2017

Nanomechanics

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The technological and biomedical applications of low toxicity and eco-friendly organic compounds are nowadays increasingly attracting the attention of researchers in nanoscience, who are aiming for more biocompatible and nanostructured systems for their application in antineoplastic therapies. This study presents the significance of "green components" in the production of graphene, metallic, and semiconductor nanoparticles, due to their antioxidant and antitumor properties. The formation of nanostructures is caused during green synthesis methods by organic molecules or carboxylic acid groups present in some plant extracts; for this reason, we include here a recapitulation and analysis of the role of carboxylic acids in those systems (organic). Furthermore, we propose the use of the extract from Opuntia ficus-indica cladodes to obtain metallic and carbon nanostructures, as an alternative biosynthesis method for the development of future nanobiotechnological applications.

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Synthesis of poly acrylic acid modified silver nanoparticles and their antimicrobial activities

Cited by 58 publications

References 33 publications

In Situ Generation of Silver Nanoparticles in Poly(Vinyl Alcohol)/Poly(Acrylic Acid) Polymer Membranes in the Absence of Reducing Agent and their Effect on Pervaporation of a Water/Acetic Acid Mixture

In Situ Generation of Silver Nanoparticles in Poly(Vinyl Alcohol)/Poly(Acrylic Acid) Polymer Membranes in the Absence of Reducing Agent and their Effect on Pervaporation of a Water/Acetic Acid Mixture

Electrochemical monitoring of colloidal silver nanowires in aqueous samples

Green Synthesis of Metallic and Carbon Nanostructures

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