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sardion
raw Buckballs have already been found to damage grey matter in fish, and a couple of years later the same team came up with a doping agent to make the buckyballs completely biocompatible(eg they did no damage and bound to the nearest silica deposit once it passed through the fishs digestive tract))
Tiny Trouble: Nanoscale materials damage fish brains
Biologists have found that a type of nanomaterial called buckyballs can damage brain cells in fish. ...their small size could also permit them to interact with living cells in unanticipated, potentially hazardous ways.
Since buckyballs are currently being manufactured in large quantities, she and her colleagues looked for potential environmental effects of these soccer ball-shape carbon molecules.
To determine the molecules' toxicity, Oberdörster first tested the buckyballs on water fleas. The researchers added buckyballs to water tanks containing the small crustaceans. Over 48 hours, the team observed rising mortality with increased concentrations. They then calculated that at 800 parts per billion, 50 percent of the water fleas would die.
...exposed fish showed 17 times as much damage to brain-cell membranes as did fish not exposed to buckyballs.
...buckyball-exposed bass had switched on some immune-response genes that the unexposed fish hadn't turned on
To see whether the same effect occurs in human cells, a group of researchers led by Rice University chemist Vicki Colvin exposed lab-grown human liver and skin cells for 48 hours to solutions containing varying concentrations of buckyballs. The team found that a dilute solution—20 parts per billion—could kill half the cells.
"This study really validates our findings," says Eva Oberdörster at Southern Methodist University in Dallas, who conducted the buckyball-toxicity studies in fish.
...The Rice team plans to test the potential toxicity of other nanoscale materials, such as the titanium dioxide nanoparticles that are used in cosmetics and sunscreens, and to investigate whether their toxicity is affected by size and shape.
Originally posted by Richard of Danbury
Well! I must be gettin' old but what the heck are buckyballs?
The human body is what, about 90% water?
Originally posted by crontab
People realized that buckyballs can be dangerous a while ago....
The problems with asbestos arose, because early tests of their safety weren't done, or were covered up. So, safety issues could not be taken into consideraiton. However, good toxicology can and are done. For instance, every major drug goes through toxicology trials before any human trials are conducted.
Originally posted by crontab
every major drug goes through toxicology trials before any human trials are conducted.
Originally posted by mrjones
Buckyballs = super strong
DNA = stuff that makes us what we are
Mix and you have super strong us'es!!!!
Ok, so that's prolly not how it works, can't blame me for dreaming
Febreze Fabric Refresher is a water-based product whose primary active ingredient is a modified starch derived from corn, specially designed to eliminate a wide range of odors. The product also contains minute amounts of alcohol and perfume.
LABEL: “Ingredients: Contains odor neutralizers, quality control agents, perfume and water.” USE ONLY AS INTENDED. AVOID ACCIDENTS. KEEP OUT OF THE REACH OF CHILDREN. Do not spray directly toward face. If eye contact occurs, rinse well with water.” ________________________________________________________________________
Comment: Now: what is in it? If Febreze is so safe, why these warnings in capital letters? On the Proctor and Gamble web site about Febreze the manufacturer writes, and I quote, exactly from the print-out dated 11/17/99, “Like any household cleaning product, Febreze should be kept out of the reach of children and pets. When using the product, be careful to spray away from your face, other people and pets.” According to numerous web sites, Febreze contained Zinc Chloride. According to the Consumer’s Dictionary Zinc Chloride is “a zinc salt used as an anti-septic and astringent in shaving creams, dentifrice, and mouthwashes. Also used in fireproofing, soldering fluxes, burnishing and polishing compounds for steel, and for electroplating, mercerizing and sizing: in adhesives, dental cements, glass etching, parchment, embalming anti-static products, and as a denaturant for alcohol. Odorless and water absorbing, it is employed as a deodorant and disinfectant, Can cause contact dermatitis, is mildly irritating to the skin, and can be absorbed through it.” Several web sites claim that Febreze caused the death of birds and dogs and sickness in other pets. Procter & Gamble on their web site states that these reports could not be substantiated. Procter & Gamble also states on their own web site febreze.com... that zinc chloride WAS in Febreze, but was taken out in December 1998.
Originally posted by Missletow
I heard it rumoured a few years ago, that Febreeze utilizes buckyballs to trap flaoting particles (odor) and weigh them down so they don't drift into the air. I can't find any documentation, but it wouldn't really surprise me if Febreeze is found to alter DNA.
More Research Urged on Nanoparticle Risk
PROVIDENCE, R.I. - Those stain-resistant khakis you just picked up at the mall, the tennis ball that holds its bounce longer and sunscreen that's clear instead of white have something in common - nanotechnology.
Scientists manipulating matter at the molecular level have improved on hundreds of everyday products in recent years and are promising dramatic breakthroughs in medicine and other industries as billions of dollars a year are pumped into the nascent sector.
But relatively little is known about the potential health and environmental effects of the tiny particles - just atoms wide and small enough to easily penetrate cells in lungs, brains and other organs.
Originally posted by Relentless
nanoparticles are already being used in a lot of every day products we are already exposed to? Am I reading this article correctly? We haven't got a clue what the implications are?
Someone tell me I am brain dead and they aren't saying what I think they are saying.
More Research Urged on Nanoparticle Risk
But relatively little is known about the potential health and environmental effects of the tiny particles - just atoms wide and small enough to easily penetrate cells in lungs, brains and other organs.
The research will appear in an upcoming issue of the journal Nano Letters, published by the American Chemical Society, the world's largest scientific society. One of the first toxicological studies of buckyballs, the research was published online by the journal on Sept. 11.
/snip
"There are many cases where toxicity is desirable," said Vicki Colvin, CBEN director, professor of chemistry and chemical engineering, and the principal investigator for the research. "For example, we might want particles that kill cancer cells or harmful bacteria. In other cases -- like applications where particles may make their way into the environment -- toxicity is undesirable."
/snip
In general, the greater the degree of surface modification, the lower the toxicity. For example, the undecorated buckyballs showed the highest toxicity -- about 20 parts per billion-- while the least toxic proved to be buckyballs decorated with the largest number of hydroxyl side-groups. To achieve the equivalent level of toxicity as that of bare buckyballs, the researchers had to increase the concentration of these modified buckyballs by 10 million times to more than 5 million parts per billion.
How Safe Are Nanoparticles?
...relatively little is known about the potential health and environmental effects of the tiny particles -- just atoms wide and small enough to easily penetrate cells in lungs, brains and other organs.
While governments and businesses have begun pumping millions of dollars into researching such effects, scientists and others say nowhere near enough is being spent to determine whether nanomaterials pose a danger to human health.
Michael Crichton's bestselling book Prey paints a doomsday scenario in which a swarm of tiny nanomachines escapes the lab and threatens to overwhelm humanity. Scientists believe the potential threat from nanomaterials is more everyday than a sci-fi thriller, but no less serious.
Studies have shown that some of the most promising carbon nanoparticles -- including long, hollow nanotubes and sphere-shaped buckyballs -- can be toxic to animal cells. There are fears that exposure can cause breathing problems, as occurs with some other ultrafine particles, that nanoparticles could be inhaled through the nose, wreaking unknown havoc on brain cells, or that nanotubes placed on the skin could damage DNA.
The National Institute for Occupational Safety and Health is developing guidelines for working with nanomaterials, saying the tiny particles may raise health concerns and the risk to those who work with them is unknown.
Also unknown is the risk to consumers and the environment.
"No one knows, and that's the problem," said Pat Roy Mooney, executive director of the ETC Group, an Ottawa nonprofit that studies the impact of technology on people and the environment. "People are rubbing them on our skin as sunscreens and as cosmetics."
Mooney's group is calling for products, such as sunscreen, that are directly absorbed into the body to be taken off the shelf until there is more study. "Frankly, I don't think that skin creams or stain resistant pants or food additives are a good reason to sacrifice someone's health," he said.
The asbestos industry, which doled out staggering sums of money for liability lawsuits after material used for insulation was shown to cause cancer and other ailments, paid the price for a failure to fully understand the product's dangers before putting it on the market, Kane said. "This is one of the few areas that I've been in that there has been a discussion at the beginning," she said.
Originally posted by sardion2000
Oh really? They are immune to class-action suits worldwide are they? News to me
As for agency oversight oh yeah we really need another FDA Havn't you been lambasted them regularly?
We need Citizen oversight not buerocratic oversight. People like you and me and relentless to make sure the risks are known far and wide but also the remiedation methods as well as I've posted above.
The asbestos industry, which doled out staggering sums of money for liability lawsuits after material used for insulation was shown to cause cancer and other ailments, paid the price for a failure to fully understand the product's dangers before putting it on the market, Kane said. "This is one of the few areas that I've been in that there has been a discussion at the beginning," she said.
And that is a good thing!