About Nanotechnology | Nanotechnology | CDC
网页2024年8月7日 · Nanotechnology refers to engineered structures, devices, and systems. It is the manipulation of matter on a near-atomic scale to produce new structures, materials and devices. Nanomaterials have a length scale between 1 and 100 nanometers. At this size, materials begin to exhibit unique properties that affect physical, chemical, and biological ...
Nanotechnology Research Center | NIOSH | CDC
网页2024年8月9日 · NIOSH conducts nanotechnology research and develops methods to control or eliminate exposures to nanoparticles. Nanoparticles are extremely small particles (between 1 and 100 nanometers) designed to have certain new or unique characteristics, like strength, elasticity, or reactivity. These new properties make advanced materials and …
Controlling Health Hazards When Working with Nanomaterials: …
网页The poster can be displayed in a lab or work environment, making it an easily accessible reminder of the important health and safety considerations for working with nanomaterials. Controlling Health Hazards When Working with Nanomaterials (11×17) Controlling Health Hazards When Working with Nanomaterials (18×24)
Technical Report: Occupational Exposure Sampling for Engineered ...
网页2022年7月29日 · In addition, NIOSH developed a practical approach to exposure sampling for other engineered nanomaterials that do not have exposure limits. Occupational health and safety professionals have expressed a need for one document that explains all of the available nanomaterial sampling techniques, and this document provides a summary of …
Health Effects of Occupational Exposure to Silver Nanomaterials
网页Exposure to silver nanomaterials in animals was associated with decreased lung function, inflamed lung tissue, and histopathological (microscopic tissue) changes in the liver and kidney. In the relatively few studies that compared the effects of exposure to nanoscale or microscale silver, nanoscale particles had greater uptake and toxicity than ...
网页deposited nanomaterials are disturbed. • The following workplace tasks can in-crease the risk of exposure to nanopar-ticles: — Working with nanomaterials in liquid media without adequate protection (e.g., gloves) — Working with nanomaterials in liquid during pouring or mixing . operations, or where a high de-gree of agitation is involved —
Nanomaterial Production and Downstream Handling Processes
网页Current Strategies for Engineering Controls in Nanomaterial Production and Downstream Handling Processes. Print. November 2013. DHHS (NIOSH) Publication Number 2014-102. The focus of this document is to identify and describe strategies for the engineering control of worker exposure during the production or use of engineered nanomaterials.
Nanotechnology Frequently Asked Questions - CDC
网页2024年2月12日 · Nanotechnology involves the manipulation of nanometer length matter (one-billionth of a meter) to produce new materials, structures, and devices. The U.S. National Nanotechnology Initiative (NNI) defines a technology as nanotechnology only if it includes all of the following: Research and technology development involves structures …
网页The National Institute for Occupational Safety and Health (NIOSH) de-veloped guidance for workplace sampling for three engineered nanomaterials: carbon nanotubes and nanofibers, silver, and titanium dioxide, each of which have an elemental mass-based NIOSH Recommended Exposure Limit (REL). In addition, NIOSH devel-oped a practical …
Managing the Health & Safety Concerns Associated with …
网页2014年6月6日 · Approaches to Safe Nanotechnology: Managing the Health and Safety Concerns Associated with Engineered Nanomaterials. This document reviews what is currently known about nanoparticle toxicity, process emissions and exposure assessment, engineering controls, and personal protective equipment. This updated version of the …