Toward Greener Nanosynthesis

Dahl, Jennifer A.; Maddux, Bettye L. S.; Hutchison, James E.

doi:10.1002/chin.200736257

Cited by 48 publications

(55 citation statements)

References 136 publications

(182 reference statements)

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“…If there are health and/or safety concerns in handling materials used in the production of nanomaterials, we should study the tradeoffs involved and then see if alternative methods of production can be used to manufacture them. Examples of alternative processes based on green chemistry [43] Though efforts to make nanomanufacturing processes greener are currently underway, they need to be coordinated with the efforts of LCA practitioners and product designers who are actually concerned with studying the impact of the use of these materials in nano-enabled products.…”

Section: Green Alternativesmentioning

confidence: 99%

Sustainable Nanotechnology: Through Green Methods and Life-Cycle Thinking

et al. 2010

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Abstract:Citing the myriad applications of nanotechnology, this paper emphasizes the need to conduct -life cycle‖ based assessments as early in the new product development process as possible, for a better understanding of the potential environmental and human health consequences of nanomaterials over the entire life cycle of a nano-enabled product. The importance of this reasoning is further reinforced through an illustrative case study on automotive exterior body panels, which shows that the perceived environmental benefits of nano-based products in the Use stage may not adequately represent the complete picture, without examining the impacts in the other life cycle stages, particularly Materials Processing and Manufacturing. Nanomanufacturing methods often have associated environmental and human health impacts, which must be kept in perspective when evaluating nanoproducts for their -greenness.‖ Incorporating life-cycle thinking for making informed decisions at the product design stage, combining life cycle and risk analysis, using sustainable manufacturing practices, and employing green chemistry alternatives are seen as possible solutions.

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Section: Green Alternativesmentioning

confidence: 99%

Sustainable Nanotechnology: Through Green Methods and Life-Cycle Thinking

et al. 2010

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“…The most important application of silver and silver nanoparticles is in medical industry such as topical ointments to prevent infection against burn and open wounds [3]. Currently, there is a growing demand for the devising of environmentally agreeable protocols for the synthesis of nanomaterials that would avoid the hazardous by-products associated with current physicochemical processes [4,5].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Antimicrobial Activity of Synthesized Silver Nanoparticles using Phyllanthus amarus and Tinospora cordifolia Medicinal Plants

Singh¹,

Panghal²,

Kadyan³

et al. 2014

J Nanomed Nanotechnol

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The main aim of this study is to evaluate the comparison of antimicrobial efficacy of silver nanoparticles synthesized from aqueous plant extracts of Phyllanthus amarus and Tinospora cordifolia. The synthesized silver nanoparticles were characterzed by UV-VIS spectroscopy, Fourier Transform Infra-Red spectroscopy, Transmission Electron Microscopy, Dynamic Light Scattering and zeta potential. The antimicrobial activity of synthesized silver nanoparticles was compared with their respective plant extracts by agar well diffussion method and minimum inhibitory concentration was also calculated. The zone of inhibition varied in range of 12 ± 1 to17 ± 0.58 mm with 100 µg/ml silver nanoparticles concentration, while acetonic, methanolic and aqueous extracts of respective plants does not showed any activity even at 1 mg/ml i.e. 10 times more than that of silver nanoparticles. MIC of silver nanoparticles was found to be in a range of 6.25-25 µg/ml against all tested microbes. The antimicrobial activity of synthesized silver nanoparticles was higher than that of the standard drug i.e. streptomycin (for bacteria) and ketoconazole (for fungus). The synthesized nanoparticles of P. amarus and T. cordifolia have shown good antimicrobial efficacy as compared to plant extracts and may prove to be better antimicrobial agent against wide range of microbes.

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“…It has no rigorous temperature requirements and does not require the use of harmful strong reducing agents [6]. Indeed, the photochemical route has drawn great attention in synthesizing metal NPs [7][8][9][10]. Photocatalysts like polyoxometalates, porphyrin, and semiconductors have been applied to the photochemical synthesis of metal NPs [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%