Large-Scale Synthesis of Polymer-Stabilized Silver Nanoparticles

Lee, Kwi Jong; Lee, Youngil; Shim, In-Keun; Jun, Byung Ho; Cho, Hye Jin; Joung, Jae Woo

doi:10.4028/www.scientific.net/ssp.124-126.1189

Cited by 19 publications

(11 citation statements)

References 6 publications

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“…1 suggests that silver nitrate (AgNO 3 ) is the most widely used salt precursor accounting for almost 83% of those reported in studies of general and specific synthesis methods. The dominant use of AgNO 3 is attributed to its low cost and chemical stability when compared to other types of silver salts (Lee et al, 2007). Thus, although it is likely that nitrate will be the dominant anion associated with the production of silver nanoparticles, nitrate is a reaction/synthesis byproduct that is classified by the United States Environmental Protection Agency (US EPA) as a primary drinking water contaminant (MCL = 10 mg L − 1 ).…”

Section: Synthesismentioning

confidence: 99%

An evidence-based environmental perspective of manufactured silver nanoparticle in syntheses and applications: A systematic review and critical appraisal of peer-reviewed scientific papers

Tolaymat

Badawy

Genaidy³

et al. 2010

Science of The Total Environment

731

422

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It is expected that the antibacterial property of bulk silver is carried over and perhaps enhanced, to silver nanoparticles. Therefore, when one examines the environmental issues associated with the manufacture and use of silver nanoparticle-based products, the antibacterial effects should always be taken into account particularly at the different stages of the product lifecycle. Currently, there are two arguments in the scientific literature about the mechanisms of antimicrobial properties of silver nanoparticles as they relate to colloidal silver particles and inonic silver. Methodologies of risk assessment and control have to account for both arguments.

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Section: Synthesismentioning

confidence: 99%

An evidence-based environmental perspective of manufactured silver nanoparticle in syntheses and applications: A systematic review and critical appraisal of peer-reviewed scientific papers

Tolaymat

Badawy

Genaidy³

et al. 2010

Science of The Total Environment

731

422

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“…For example, a signifi cant increase of the dispersion viscosity, which can be achieved via gelation, will minimize particle mobility. This gelation route has been applied to Ag-based inks, [ 43 ] metal oxide nanoparticle dispersions, [44][45][46] and GO dispersions, [ 47 ] but not yet for nonfunctionalized graphene dispersions.…”

Section: Introductionmentioning

confidence: 99%

Conductive Screen Printing Inks by Gelation of Graphene Dispersions

Arapov

Rubingh

Abbel

et al. 2015

Adv Funct Materials

150

119

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vital [ 25 ] as it facilitates thick layers (of up to 100 µm) in a single pass, however, at the expense of a lower printing defi nition.Following screen printing typically posttreatments such as drying, annealing, or top-coating are employed to maximize conductivities. The conditions of post-treatment defi ne the substrate that can be used for printing. For example, ink annealing at 250 °C and higher for 30 min [ 18,24,25 ] signifi cantly limits the range of suitable substrates and fundamentally limits high speed R2R industrial realization. Thus, the design of graphene inks that meet the requirements of current R2R applications is still to be accomplished.There are several reports on the preparation of graphene-based inks comprising either graphene oxide (GO), [ 17,19,23,[27][28][29][30] or graphite exfoliated with [ 13,16,18,22,24,25 ] and without [ 20 ] surface active agents. The preparation of inks based on GO is relatively simple. However, due to the low conductivity of GO these inks require harsh post-treatments that make them less relevant to industrial applications. Liquid-phase exfoliation of graphite with or without surfactant by ultrasonication, [ 20,[31][32][33][34] or high-shear mixing [ 22,35 ] is a fl exible, and in the latter case a scalable manufacturing approach. [ 35 ] Nevertheless prolonged high shearing still requires separation of nonexfoliated graphite while the resulting dispersions consist mainly of small (<500 nm) graphene sheets. [ 33,34,36 ] Hence the quality [ 20 ] is far from the one obtained by micromechanical cleavage. [ 37 ] In contrast, expanded graphite (EG) demonstrates much better dispersibility than graphite due to signifi cantly weakened van der Waals interactions on account of an increased distance between the layers. [ 13,[38][39][40] This results in much shorter times and smaller energy input to obtain well-exfoliated concentrated dispersions of typically large (>1 µm) fl ake graphene. [ 39,41 ] Colloidal stability, however, as for the exfoliation of graphite, requires the presence of surface active agents and can be adjusted accordingly. The quality of graphene in EG depends on the precursor used for expansion. For instance, EG obtained from GO exhibits a highly defective structure, [ 41,42 ] whereas EG obtained from either donor-or acceptor-type intercalation compounds (IC) exhibits a much smaller amount of defects and, thus, is more suitable for highly conductive inks. [39][40][41] One of the approaches for ink preparation comprises stabilization of graphene dispersions by surfactants or surface active polymers on account of charge or van der Waals repulsion. This stabilization has been studied and reported by many research

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“…4. AgNO 3 is the predominant precursor used in the synthesis of silver nanoparticle due to its high chemical stability and low cost [17].…”

Section: Metal Saltsmentioning

confidence: 99%

Biotemplates in the green synthesis of silver nanoparticles

Vijayaraghavan¹,

Nalini²

2010

Biotechnology Journal

111

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This article recapitulates the scientific advancement towards the greener synthesis of silver nanoparticles. Applications of noble metals have increased throughout human civilization, and the uses for nano-sized particles are even more remarkable. "Green" nanoparticle synthesis has been achieved using environmentally acceptable solvent systems and eco-friendly reducing and capping agents. Numerous microorganisms and plant extracts have been applied to synthesize inorganic nanostructures either intracellularly or extracellularly. The use of nanoparticles derived from noble metals has spread to many areas including jewelery, medical fields, electronics, water treatment and sport utilities, thus improving the longevity and comfort in human life. The application of nanoparticles as delivery vehicles for bactericidal agents represents a new paradigm in the design of antibacterial therapeutics. Orientation, size and physical properties of nanoparticles influences the performance and reproducibility of a potential device, thus making the synthesis and assembly of shape- and size-controlled nanocrystals an essential component for any practical application. This need has motivated researchers to explore different synthesis protocols.

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Large-Scale Synthesis of Polymer-Stabilized Silver Nanoparticles

Cited by 19 publications

References 6 publications

An evidence-based environmental perspective of manufactured silver nanoparticle in syntheses and applications: A systematic review and critical appraisal of peer-reviewed scientific papers

An evidence-based environmental perspective of manufactured silver nanoparticle in syntheses and applications: A systematic review and critical appraisal of peer-reviewed scientific papers

Conductive Screen Printing Inks by Gelation of Graphene Dispersions

Biotemplates in the green synthesis of silver nanoparticles

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