Safe development of nanotechnology: A global challenge

Madhwani, Kishore

doi:10.4103/0019-5278.130833

Cited by 12 publications

(11 citation statements)

References 1 publication

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“…As explained by Madhwani [225], the two factors which make nanoparticles a serious occupational risk include the size of nanoparticle and massive surface area. The size of nanoparticles cannot be seen by the eye or detected by a light microscope.…”

Section: ) Safety In Nanotechnologymentioning

confidence: 99%

Environmental and Societal Impact of Nanotechnology

et al. 2020

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The ability to measure, understand, manipulate, organize, engineer and control matter on the nanoscale has been opening up the wealth of possibilities that were otherwise non-existent at higher scales. At this scale, basic research principles and tools in biology, physics, chemistry, and engineering converge and have led to all-inclusive applications of nanotechnology. Despite the innovative applications and promising potentials of nanotechnology, there are concerns about its short and long-lasting impacts on humans, nature and the environment. In an attempt to address these concerns, a number of researches have been conducted. Evaluations of studies addressing the issues of nanotechnologies and their impacts are necessary to give insights for further studies that will advance the technology for the true benefit of mankind and nature. This study, thus, provides a detailed review of studies on nanotechnology applications and the positions of stakeholders on the impact of nanotechnology. Among other things, the outcome of this survey shows that there are numerous successful applications of nanotechnology. Public perceptions are pivotal in determining the extent of revolution and transformation that nanotechnology will have on the environment. Religious beliefs and moral concerns; trust in governmental regulatory agencies and the industry; the level of inclusion of the society in the product design, development, and commercialization process is critical to the extent of acceptance of nanotechnology inventions. Expression of objective views concerning the benefits, limitations & risks, and adequate education of the public, risk regulators & all stakeholders are crucial in determining the fate of nanotechnology.

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Section: ) Safety In Nanotechnologymentioning

confidence: 99%

Environmental and Societal Impact of Nanotechnology

et al. 2020

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“…Nanotechnology has captured the interest of many fields due to the ability to create novel materials and components through the use and control of small scale structures; however, while the potential benefits are vast, it is important to consider the health effects from working with nanomaterials [78]. As size decreases from the macroscale to nanoscale (10 −9 m), the characteristics of the material itself change, often making the nanomaterial completely different from the large scale material [78]. These very properties, while highly desired, make nanomaterials hazardous to people [79].…”

Section: Safety Considerationsmentioning

confidence: 99%

“…The authors found that all nanomaterials, except for titanium oxide, exhibited greater toxicity than seen with the bulk materials [80]. The difference in behavior from the macro to nanoscale is influenced by both size and surface area [78,79]. The small size of the particles allows for the nanomaterial to be inhaled and travel to locations in the body that larger scale materials cannot [78,79].…”

Section: Safety Considerationsmentioning

confidence: 99%

The Effect of Nanostructures in Aluminum Alloys Processed Using Additive Manufacturing on Microstructural Evolution and Mechanical Performance Behavior

2021

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This paper reviews the status of nanoparticle technology as it relates to the additive manufacturing (AM) of aluminum-based alloys. A broad overview of common AM processes is given. Additive manufacturing is a promising field for the advancement of manufacturing due to its ability to yield near-net-shaped components that require minimal post-processing prior to end-use. AM also allows for the fabrication of prototypes as well as economical small batch production. Aluminum alloys processed via AM would be very beneficial to the manufacturing industry due to their high strength to weight ratio; however, many of the conventional alloy compositions have been shown to be incompatible with AM processing methods. As a result, many investigations have looked to methods to improve the processability of these alloys. This paper explores the use of nanostructures to enhance the processability of aluminum alloys. It is concluded that the addition of nanostructures is a promising route for modification of existing alloys and may be beneficial to other powder-based processes.

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“…More so, nanotechnology is a technology that is capable of enhancing the production of quality clothing, energy saving devices, and quality packaging that are capable of impacting daily living. It involves manipulating matter on near atomic scale for the production of new structures, systems, and devices [33]. Through this, healthy, efficient and sustainable systems can be created by combining science, art, and technology.…”

Section: Nanomaterials Influence In Art and Lifementioning

confidence: 99%

Laser Ablation Technique for Synthesis of Metal Nanoparticle in Liquid

Sadrolhosseini¹,

Mahdi²,

Alizadeh³

et al. 2019

Laser Technology and Its Applications

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Recently, the synthesis and application of metal and ceramic nanoparticle are significant subject in science and engineering. The metal nanoparticles such as silver, gold, and copper nanoparticles have more application in material science, nanomedicine, electronic, photonic, and art. One of the green methods for preparation of metal nanoparticles is laser ablation technique that offers a unique tool for nanofabrication of nanoparticles. In this technique, the high-power laser ablates the metal plate and the nanoparticles are formed in the liquid. The properties of nanoparticles using laser ablation are unique, and they are not reproducible by any other method such as chemical methods. The important parameters to produce the metal nanoparticles are energy, wavelength, repetition rate of laser, ablation time, and absorption of an aqueous solution. Laser ablation is a simple method for fabricating the metal nanoparticles without surfactant or chemical addition. In this chapter, the mechanism of formation of metal nanoparticles in liquid, significant parameters for using the laser ablation technique to prepare the metal nanoparticles, and the preparation of silver, gold and copper nanoparticles will be reviewed.

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Safe development of nanotechnology: A global challenge

Cited by 12 publications

References 1 publication

Environmental and Societal Impact of Nanotechnology

Environmental and Societal Impact of Nanotechnology

The Effect of Nanostructures in Aluminum Alloys Processed Using Additive Manufacturing on Microstructural Evolution and Mechanical Performance Behavior

Laser Ablation Technique for Synthesis of Metal Nanoparticle in Liquid

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