, Lam T.
, Liddle J.A.
, Long C.
, Nguyen T.
, Petersen E.J.
, Scott K.
, Sharma R.
, Sung L.P.
, National Institute of Standards and Technology, US
Nanomaterials can be used as nanofillers to enhance the properties of polymeric materials. However, the effect of weathering on nanocomposites and the potential for nanomaterial release is not yet well known. This stems partly from [...]
Consumer nanoproducts are interested in public health aspects. In Korea, wallpaper is a popular construction material of housing. Wallpaper is well known to emit various volatile organic compounds and carbonyl compounds. Some wallpaper is coated [...]
The impact of nanoparticles on the environment and, more importantly, the human population has been of great interest for the past few years. Release of these nanoparticles from different materials from wear or climate exposure [...]
The main goal of this research was to gain a better understanding of the extraction profile of medical devices containing silver nanoparticles. Multiple silver nanoparticle containing medical devices were incubated in various extract solutions (water, [...]
Reports on the inhalation risks associated with carbon nanotubes (CNTs) express concern for exposures throughout the lifetime of CNTs and CNT-enabled products. The ability to quantify airborne exposures to workers and consumers will be a [...]
In this study, we simulated consumer application of a spray sunscreen containing nanoscale TiO2 to determine the nature of consumer TiO2 exposure from the product’s use (e.g. form of TiO2 [primary particle, aggregate/agglomerate], size of [...]
There has been increasing interest in the biological and biomedical applications of carbon nanotube. We addressed the novel question: Are pure CNTs produced for distribution to manufacturers “toxic” to plants through their effects on physiological [...]
The work presented will establish a method for employing SP-ICP-MS toward the characterization of ENPs following their exposure to a model organism, C. elegans. Sample preparation, SP-ICP-MS analysis, data processing, particulate transport efficiency evaluation, and [...]
To investigate the mechanisms of polymer degradation, polymer matrix, epoxy, with the addition of nanosilica (SiO2), was chosen. In this study an outdoor environment was simulated in the NIST (Nation Institute of Standards and Technology) [...]
Cellulose nano-crystals and fibrils (CNC/CNF) are gaining prominence as nano structured material with production volumes forecasted to reach 780 tons per annum by 2017. Knowledge of the toxicologic properties, actual worker exposure and resulting risk [...]
Well-ordered mesoporous carbon adding crosslink agent as precursor was synthesized using SBA-15 as a template, its structure was characterized by TEM, X-ray diffraction and FT-IR. Its adsorption capacity was evaluated by a typical total organic [...]
The goal of this study was to evaluate a carbon nanotube (CNT) product in terms of life cycle phases representing points where resources are expended and emissions are created. The study described here is important [...]
Nanotechnology has the potential to provide great benefit to society, but it must be developed responsibly. This responsibility involves addressing any adverse human and environmental impacts of the technology associated with engineered nanomaterials. Workers are [...]
There has been a large amount of research and investment into the toxicological effects of nanomaterials on the environment and there is – as yet – no definitive findings on the relative weighting and importance [...]
, Hackley V.
, Henry T.B.
, Kirschling T.L.
, MacCuspie R.I.
, Petersen E.J.
, White J.C.
, Xing B.
, Zhao J.
, National Institute of Standards and Technology, US
Novel physicochemistries of engineered nanomaterials (ENMs) offer considerable commercial potential for new products and processes, but also the possibility of unforeseen and negative consequences upon ENM release into the environment. Investigations of ENM ecotoxicity have [...]
This works investigates embedding metal nanoparticles (NPs) in porous silica shells to reduce or entirely mitigate the metal NPs toxicity while still providing access to the metal NP surface; hence maintaining functionality of the embedded [...]
Nanomaterials (NM) with particle sizes below 100 nm display unique properties compared to conventional materials with a submicron size. On the other hand, the debate on safety of NM has expanded worldwide. Therefore, to fully [...]
Nanoparticles have contributed significantly to the design of new drug delivery and targeting in cancer chemotherapy. Consequently, some of the desirable qualities of silver and gold nanoparticles have prompted their novel applications in cancer nanobiotechnology. [...]
, Bhushan A.
, Idikuda V.K.
, Lai J.C.K.
, Lai M.B.
, Leung S.W.
, Mukka K.
, Neti A.
, Pfau J.
, Singh M.R.M.
, Tadinada S.M.
, Idaho State University College of Pharmacy, US
Because of their escalating uses in industrial and biomedical applications, humans are increasing exposed to nanoparticles in occupational and other environmental settings. However, the environmental safety and health impact of such particles have not been [...]
Hyphenated mass spectrometry (gas chromatography/mass spectrometry) techniques have been employed as one of the primary analytical tools for investigating the effects of ionizing radiation, chemical/biological carcinogens and oxygen derived free radicals on the induction and [...]
, Chen M.
, Davidson D.
, Demokritou P.
, Derk R.
, Luanpitpong S.
, Ma J.
, Mercer R.R.
, Rojanasakul Y.
, Sotiriou G.A.
, Stueckle T.
, Wang L.
, National Institute for Occupational Safety and Health, US
Goal of the present study is to investigate the specific cellular responses to nCeO2 and nFe2O3 in various lung cell types and develop an in vitro chronic exposure model to predict the potential fibrogenic and [...]
Concern for increased risk of carbon nanotube-associated lung disease, including carcinogenesis, has been raised due to asbestos-like characteristics. To date, no particle specific nanomaterial exposure or lung cancer markers have been identified. Here, we use [...]
Carbon nanotubes (CNT) hold great promise to create new and better products, but their long-term adverse health effects are a major concern. The objective of this study was to develop an in vitro model for [...]
Several reports have shown that single-walled carbon nano tubes (SWCNT) caused lung fibrosis in rodents. The molecular mechanisms that govern SWCNT lung toxicity remain largely unaddressed. Our results indicate that SWCNTs induced ROS and mitochondrial [...]
Mass is still the standard dose metric applied in the nano(eco)toxicology literature. Greater particle surface area or number may be more relevant dose metrics than mass to represent particle interactions with biological surfaces. This investigation [...]
Length classification of airborne fibers, including carbon nanotubes/nanofibers, is a fundamental technology important for toxicology studies of these materials. Fiber toxicity appears to depend on fiber concentration, dimensions (diameter and length) and durability in the [...]
In present work, we have developed a system for detection and quantification of arsenic in water, based on surface plasmon resonance. The sensor uses a gold self-assembled monolayers on Au(111) substrate. Studies that we have [...]
Journal: TechConnect Briefs
Volume: 3, Nanotechnology 2014: Electronics, Manufacturing, Environment, Energy & Water
Published: June 15, 2014
Industry sectors: Advanced Materials & Manufacturing | Energy & Sustainability
Topicss: Advanced Manufacturing, Environmental Health & Safety of Nanomaterials