The impact of engineered nanomaterials on the environment: Release mechanism, toxicity, transformation, and remediation

Kumar, Chirayil Meethalepurayil Vineeth; Karthick, V.; Kumar, Vikas; Inbakandan, D.; Rene, Eldon R.; Suganya, K.; Embrandiri, Asha; Dhas, T. Stalin; Ravi, M.; Sowmiya, P.

doi:10.1016/j.envres.2022.113202

Cited by 42 publications

(10 citation statements)

References 169 publications

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“…Studies have shown that the bioaccumulation of AgNPs can vary depending on factors such as the size of the particles, the surface coating, and the exposure route. Additionally, the accumulation of AgNPs can differ between different species, with some organisms being more susceptible to accumulation than others [68] [69] [70]. Overall, the bioaccumulation of AgNPs is an area of concern due to the potential ecological and human health risks associated with their accumulation in organisms and potential transfer through food webs.…”

Section: Bioaccumulation Of Agnpsmentioning

confidence: 99%

Toxicity and Molecular Mechanisms of Actions of Silver Nanoparticles

Waktole¹

2023

JBNB

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Silver nanoparticles (AgNPs) have gained popularity due to their antibacterial properties, and are therefore widely used in several applications such as wound dressings, food packaging, and water purification. However, the toxicity of AgNPs to humans and the environment is a growing concern. This review aims to summarize the current knowledge on the toxicity and molecular mechanisms of action of AgNPs. The toxicity of AgNPs can be attributed to their small size, which allows them to enter cells and interact with cellular components. Reports suggest that AgNPs can induce cell death, DNA damage, and oxidative stress in various cell types. The toxic effects of AgNPs differ based on their size, shape, surface charge, and coating. The molecular mechanisms behind the toxicity of AgNPs involve the production of reactive oxygen species, disruption of cellular membranes, and activation of proinflammatory cytokines. Overall, the toxicity of AgNPs is dependent on various factors, and more research is needed to fully understand the mechanisms behind their toxicity. This review highlights the need for proper risk assessments and regulations to minimize the adverse effects of AgNPs on human health and the environment.

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Section: Bioaccumulation Of Agnpsmentioning

confidence: 99%

Toxicity and Molecular Mechanisms of Actions of Silver Nanoparticles

Waktole¹

2023

JBNB

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“…By developing green nanoparticles, we can reduce the environmental impact of nano-EOR. 86,97 3.3.1. Nanomaterial Structure.…”

Section: Developing Nanoparticle Transport Andmentioning

confidence: 99%

“…Green nanoparticles are nanoparticles produced from sustainable sources and are biodegradable. By developing green nanoparticles, we can reduce the environmental impact of nano-EOR. , …”

Section: Controlling Factors For the Success Of Nanofloodingmentioning

confidence: 99%

Nanotechnology Impact on Chemical-Enhanced Oil Recovery: A Review and Bibliometric Analysis of Recent Developments

Hosny,

Zahran,

Abotaleb

et al. 2023

ACS Omega

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Oil and gas are only two industries that could change because of nanotechnology, a rapidly growing field. The chemical-enhanced oil recovery (CEOR) method uses chemicals to accelerate oil flow from reservoirs. New and enhanced CEOR compounds that are more efficient and eco-friendly can be created using nanotechnology. One of the main research areas is creating novel nanomaterials that can transfer EOR chemicals to the reservoir more effectively. It was creating nanoparticles that can be used to change the viscosity and surface tension of reservoir fluids and constructing nanoparticles that can be utilized to improve the efficiency of the EOR compounds that are already in use. The assessment also identifies some difficulties that must be overcome before nanotechnology-based EOR can become widely used in industry. These difficulties include the requirement for creating mass-producible, cost-effective nanomaterials. There is a need to create strategies for supplying nanomaterials to the reservoir without endangering the formation of the reservoir. The requirement is to evaluate the environmental effects of CEOR compounds based on nanotechnology. The advantages of nanotechnology-based EOR are substantial despite the difficulties. Nanotechnology could make oil production more effective, profitable, and less environmentally harmful. An extensive overview of the most current advancements in nanotechnology-based EOR is provided in this paper. It is a useful resource for researchers and business people interested in this area. This review’s analysis of current advancements in nanotechnology-based EOR shows that this area is attracting more and more attention. There have been a lot more publications on this subject in recent years, and a lot of research is being done on many facets of nanotechnology-based EOR. The scientometric investigation discovered serious inadequacies in earlier studies on adopting EOR and its potential benefits for a sustainable future. Research partnerships, joint ventures, and cutting-edge technology that consider assessing current changes and advances in oil output can all benefit from the results of our scientometric analysis.

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“…Polyhydroxyalkanoates (PHAs) are biological macromolecules that are usually seen as aggregates in microbial cells as granules [1]. Owing to the environmental concerns associated with plastics, many countries look forward to alternative solutions such as biodegradable plastics [2,3]. Thus, it becomes inevitable for us to enhance our manufacturing methods, raw material selection, recycling, and waste con-version to acceptable forms to avoid introducing any material waste into the environment that nature cannot handle.…”

Section: Introductionmentioning

confidence: 99%

Production and Characterization of Polymer Blends and Assessment of Biodegradation

Sakthiselvan

Madhumathi

Karthick

et al. 2022

Journal of Nanomaterials

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Polyhydroxybutyrate (PHB), a microbial polyester well known for its high glass transition and melting temperatures, is found in the intracellular granule within microbes. Herein, we have attempted to synthesize PHB along with xyloglucan (XG) as a copolymer to lower glass transition and melting temperature. Fourier transform infrared spectroscopic (FTIR) and Scanning Electron Microscopic (SEM) analyses were used to investigate the characteristics of blend films. We found that the addition of XG resulted in increased moisture absorption of the blend films. XG-PHB blend of ratio 80 : 20 showed the highest tensile strength and was subjected to thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analysis. The results revealed that the XG-PHB blend has a lower melting point (121.3°C) and lesser crystalline degree (17.26%) than PHB. TGA results showed that blend film was more thermally stable than PHB. An effort to understand and analyze microorganisms that can produce and biodegrade copolymers such as PHB-XG is the main effort of this study which unfolds “new hope” in the field of biodegradable alternatives to plastics.

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The impact of engineered nanomaterials on the environment: Release mechanism, toxicity, transformation, and remediation

Cited by 42 publications

References 169 publications

Toxicity and Molecular Mechanisms of Actions of Silver Nanoparticles

Toxicity and Molecular Mechanisms of Actions of Silver Nanoparticles

Nanotechnology Impact on Chemical-Enhanced Oil Recovery: A Review and Bibliometric Analysis of Recent Developments

Production and Characterization of Polymer Blends and Assessment of Biodegradation

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