In vitro biocompatibility of nanoscale zerovalent iron particles (NZVI) synthesized using tea polyphenols

Nadagouda, Mallikarjuna N.; Castle, Alicia B.; Murdock, Richard C.; Hussain, Saber M.; Varma, Rajender S.

doi:10.1039/b921203p

Cited by 297 publications

(165 citation statements)

References 27 publications

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“…To fully understand what defines the size and shape of these green nZVIs, a more detailed study on the chemical composition of the extracts, namely the polyphenol profile, is required (Mystrioti et al, 2015;Nadagouda et al, 2010). With this it would be possible to evaluate if there are specific compounds or groups of compounds that could be linked to certain nZVI physical or chemical properties (such as reactivity or agglomeration tendency).…”

Section: Size Determination Of the Nanoparticlesmentioning

confidence: 99%

Characterization of green zero-valent iron nanoparticles produced with tree leaf extracts

Machado

Pacheco

Nouws

et al. 2015

Science of The Total Environment

179

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a b s t r a c t Keywords:Zero-valent iron nanoparticles Green synthesis method Tree leaves Size Reactivity AgglomerationIn the last decades nanotechnology has become increasingly important because it offers indisputable advantages to almost every area of expertise, including environmental remediation. In this area the synthesis of highly reactive nanomaterials (e.g. zero-valent iron nanoparticles, nZVI) is gaining the attention of the scientific community, service providers and other stakeholders. The synthesis of nZVI by the recently developed green bottom-up method is extremely promising. However, the lack of information about the characteristics of the synthetized particles hinders a wider and more extensive application. This work aims to evaluate the characteristics of nZVI synthesized through the green method using leaves from different trees. Considering the requirements of a product for environmental remediation the following characteristics were studied: size, shape, reactivity and agglomeration tendency. The mulberry and pomegranate leaf extracts produced the smallest nZVIs (5-10 nm), the peach, pear and vine leaf extracts produced the most reactive nZVIs while the ones produced with passion fruit, medlar and cherry extracts did not settle at high nZVI concentrations (931 and 266 ppm). Considering all tests, the nZVIs obtained from medlar and vine leaf extracts are the ones that could present better performances in the environmental remediation. The information gathered in this paper will be useful to choose the most appropriate leaf extracts and operational conditions for the application of the green nZVIs in environmental remediation.

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Section: Size Determination Of the Nanoparticlesmentioning

confidence: 99%

Characterization of green zero-valent iron nanoparticles produced with tree leaf extracts

Machado

Pacheco

Nouws

et al. 2015

Science of The Total Environment

179

View full text Add to dashboard Cite

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“…Also, the results obtained are relatively reproducible [8]. Plants, algae, fungi, bacteria and viruses have been utilized for the bio production of NPs in the last few years [9][10][11][12][13][14][15][16][17]. But the _______________________________________________________________________________________ Volume: 04 Issue: 09 | September-2015, Available @ http://www.ijret.orgmaintenance of cell culture is not easy.…”

Section: Figure 1: Types Of Nanoparticlesmentioning

confidence: 99%

Antimicrobial Activity of Trachyspermum Ammi Leaves Mediated Silver Nanoparticles : Green Approach

Sahu¹,

Rawat²,

Singh³

2015

IJRET

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This paper describes a cost effective and environment friendly technique for green synthesis of silver nanoparticles from 3mM AgNO 3 solution through the extract of Trachyspermum ammi leaf using domestic microwave irradiation method. On mixing leaf extract with silver salt solution in ratio 1:4 the color changed from colourless to yellowish brown which partially confirmed the degradation of silver ions to silver nanoparticles (SNPs). The synthesized nanoparticles were characterized by using UV-visible spectroscopic techniques, Energy dispersive X-ray spectroscopy (EDAX), Scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR).The shape of the synthesized nanoparticles was found to be cubical. The antimicrobial activities of the synthesized silver nanoparticles against two human pathogens were evaluated by using disc diffusion and broth dilution method.

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“…Not only did the process eliminate the use of hazardous chemicals, but the nanoparticles showed no significant signs of dermal toxicity. The researchers next used grape extract to make high-quality nanocrystals of gold, silver, palladium, and platinum (Nadagouda et al 2010). The message behind this example is that moving toward sustainable nanotechnology means incorporating new thinking into materials research and development.…”

Section: Jeff Morris Us Environmental Protection Agencymentioning

confidence: 99%

Innovative and Responsible Governance of Nanotechnology for Societal Development

Roco

Harthorn

Guston

et al. 2011

Nanotechnology Research Directions for Societal Needs in 2020

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Governance of nanotechnology is essential for realizing economic growth and other societal benefits of the new technology, protecting public health and environment, and supporting global collaboration and progress. The article outlines governance principles and methods specific for this emerging field. Advances in the last 10 years, the current status and a vision for the next decade are presented based on an international study with input from over 35 countries.Keywords Nanoscale science and engineering Á Nanotechnology innovation and commercialization Á Responsible development, Global governance, Emerging technologies Á Societal implications Á Ethical and legal aspects Á Nanotechnology market Á Public participation Á International perspective Vision for the next decadeChanges in the vision over the last 10 years Nanotechnology has been defined as ''a multidisciplinary field in support of a broad-based technology to reach mass use by 2020, offering a new approach for education, innovation, learning, and governance' ' (Roco et al. 1999). The governance of nanotechnology development for societal benefit is a challenge with many facets ranging from fostering research and innovation to addressing ethical concerns and long-term human development aspects. The U.S. nanotechnology governance approach has aimed to be ''transformational, responsible, and inclusive, and [to] allow visionary development'' (Roco 2008). Both domestically and globally, the approach to nanotechnology governance has evolved considerably in the last 10 years:• The viability and societal importance of nanotechnology applications has been confirmed, while extreme predictions, both pro and con, have receded.

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In vitro biocompatibility of nanoscale zerovalent iron particles (NZVI) synthesized using tea polyphenols

Cited by 297 publications

References 27 publications

Characterization of green zero-valent iron nanoparticles produced with tree leaf extracts

Characterization of green zero-valent iron nanoparticles produced with tree leaf extracts

Antimicrobial Activity of Trachyspermum Ammi Leaves Mediated Silver Nanoparticles : Green Approach

Innovative and Responsible Governance of Nanotechnology for Societal Development

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