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6. What are potential harmful effects of nanoparticles?
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http://copublications.greenfacts.org/ ... otechnologies/index.htm#6
. What are potential harmful effects of nanoparticles? 6.1 Nanoparticles can have the same dimensions as some biological molecules and can interact with these. In humans and in other living organisms, they may move inside the body, reach the blood and organs such as the liver or the heart, and may also cross cell membranes. Insoluble nanoparticles are a greater health concern because they can persist in the body for long periods of time. More... 6.2 The parameters of nanoparticles that are relevant for health effects are nanoparticle size (smaller particles can be more dangerous), chemical composition and surface characteristics, and shape. More... 6.3 Inhaled nanoparticles can deposit in the lungs and then potentially move to other organs such as the brain, the liver, and the spleen, and possibly the foetus in pregnant women. Some materials could become toxic if they are inhaled in the form of nanoparticles. Inhaled nanoparticles may cause lung inflammation and heart problems. More... 6.4 The objective of nanoparticles used as drug carriers is to deliver more of the drug to the target cells, to reduce the harmful effects of the drug itself on other organs, or both. However, it is sometimes difficult to distinguish the toxicity of the drug from that of the nanoparticle. More... 6.5 With the exception of airborne particles reaching the lungs, information on the behaviour of nanoparticles in the body is still minimal. Assessment of the health implications of nanoparticles should take into account the fact that age, respiratory tract problems, and the presence of other pollutants can modify some of the health effects. More... 6.6 Information on the effects of nanoparticles on the environment is very scarce. However, it is likely that many conclusions drawn from human studies can be extrapolated to other species, but more research is needed. More... More info in Level 2 -->
Posted on: 2008/12/26 13:55
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Administration, VAKEN.SE
Courage is contagious. Censorship is Freedumb. "Oh look, ANOTHER elephant in the living room, lets talk about it shall we?..." |
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Re: 6. What are potential harmful effects of nanoparticles?
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1.2 Q&As and FAQs about nanotechnology
* Nanotechnology Now, a comprehensive site on science, technology and industy, proposes FAQs on nanotechnologies: www.nanotech-now.com/FAQ.htm * The Defra (UK’s Department for Environment, Food and Rural Affaire) note page on nanoscience and nanotechnology presents background information on the topic in the form of Q&As: www.defra.gov.uk/science/what/ ... efraScienceNote1final.pdf * The Royal Society, the national academy of science of the UK and the Commonwealth, proposes Q&As on nanoscience and nanotechnology: www.royalsoc.ac.uk/landing.asp?id=1210 * The National Nanotechnology Initiative (NNI), the US program to coordinate the efforts in nanoscale science, engineering, and technology, publishes a series of FAQs on nanotechnology: www.nano.gov/html/facts/faqs.html * The Foresight Nanotech Institute, whose mission is to ensure the beneficial implementation of nanotechnology, proposes FAQs on nanotechnologies at: www.foresight.org/nano/whatisnano.html
Posted on: 2008/12/26 14:23
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Administration, VAKEN.SE
Courage is contagious. Censorship is Freedumb. "Oh look, ANOTHER elephant in the living room, lets talk about it shall we?..." |
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Re: 6. What are potential harmful effects of nanoparticles?
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2. Other Views
Links in this section have been selected as examples of other views on Nanotechnologies. This list of links is only a sample and it is not suggested that it is complete nor that it is fully representative of all the existing views. GreenFacts asbl takes no position concerning the views expressed in these linked documents. * Greenpeace expresses concerns about the health and environmental safety of nanoparticles and wishes to see a moratorium on the release of nanoparticles to the environment until evidence that it is safe (for the environment and human health) is clear: www.greenpeace.org.uk/about/nanotechnology * The Action Group on Erosion, Technology and Concentration expresses concerns about the safety of nanotechnologies and suggests a moratorium be placed on research involving molecular self-assembly and self-replication: www.etcgroup.org/en/issues/nanotechnology.html * The Soil Association, a UK organization devoted to organic food and farming, is proposing a ban on nanotechnologies, due to unknown health en environmental effects: www.soilassociation.org/
Posted on: 2008/12/26 14:24
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Administration, VAKEN.SE
Courage is contagious. Censorship is Freedumb. "Oh look, ANOTHER elephant in the living room, lets talk about it shall we?..." |
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Re: 6. What are potential harmful effects of nanoparticles?
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Quote:
Om 15 år kan de finnas ÖVERALLT, och läsa av ALLT, ser ut som damm, Endgame agenda...... Atomic Madness ; )
Posted on: 2008/12/26 21:09
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Administration, VAKEN.SE
Courage is contagious. Censorship is Freedumb. "Oh look, ANOTHER elephant in the living room, lets talk about it shall we?..." |
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