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3D Printed Objects Found Toxic To Fish Embryos (universityofcalifornia.edu)
itwbennett writes: Researchers at the University of California, Riverside have found that the parts of two common types of 3D printers are toxic to zebrafish embryos. The researchers made this discovery accidentally when a graduate student whose work involves developing tools for studying zebrafish embryos "noticed that zebrafish embryos die after exposure to parts from the 3-D printer." According to the report, "While the embryos exposed to parts from the plastic-melting printer had slightly decreased average survival rates compared to control embryos, the embryos exposed to parts from the liquid-resin printer had significantly decreased survival rates, with more than half of the embryos dead by day three and all dead by day seven. And of the few zebrafish embryos that hatched after exposure to parts from the liquid-resin printer, 100 percent of the hatchlings had developmental abnormalities."
The photopolymer resins are usually UV cured. They contain chemicals that spit out free radicals to initiate polymerization. And you don't get a 100% cure.
The paranoid in me wore double gloves when handling parts with liquid resin. Newer stuff might be safer. But the stuff I used was gene scrambling goo in my mind.
The world is made by those who show up for the job.
So ... bad news for all the geeks that 3D printed their beverage cups ?
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3D Fish Tank decor
http://3dprint.com/61418/3d-pr...
http://www.advancedaquarist.co...
What kind of cyanide does it release? Potassium cyanide is solid at room temperature. And my room is 80F most times of the year, so hydrogen cyanide would be a gas.
They are not too likely to reproduce anyway.
You need food grade plastics to print items that are going to be used in the preparation and consumption of food. As far as I am aware there is no such thing as a food grade ABS plastic. You can purchase food grade PLA for 3D printing however.
Gotta like it when this stuff is discovered by accident. Do we have safeguards against putting the latest industrial chemical product into contact with millions of people? Seems like we don't.
A more accurate headline would be: "Some 3D Printer consumables toxic to certain fish"
The toxicity is not an attribute of manufacturing process. It's an attribute of the material with which it's manufactured.
Sensationalized headlines are in poor taste. Slashdot can be much better than this.
As anyone who ever had a fish tank will tell you.
What would be amazing is if they found things not normally in the egg that weren't toxic to the embryos.
The summary reads like he took apart a 3D printer then threw various components from it in a fish tank. I was left wondering why anyone would do that.
Would seriously like to know whether they were using PLA or ABS filament for their "not as toxic" melted-plastic machine test.
I'm printing exclusively with PLA at home, but have no idea which they're talking about.
You can purchase food grade PLA for 3D printing however.
Hey now, lets not resort to cannibalism here! What'd I ever do to you???
I wouldn't be surprised if even food grade plastics would effect fish embryos. Things like traces of soap, which is completely safe for humans readily effect fish.
love is just extroverted narcissism
So Makerbot called on people to help make hermit crab shells to dump in the waters....
guess that's a bit of a bad idea now.
http://www.makerbot.com/blog/2011/10/18/project-shellter-can-the-makerbot-community-save-hermit-crabs
There are potable-water applications for ABS pipe. I expect that means it's possible to have food-grade ABS plastic at least if certain conditions are met. On top of that ABS is often used in the housings of plastic kitchen appliances, so it still has to be safe for incidental exposure.
I wonder if the process that is used to injection-mold or to extrude ABS gives it different properties than the 3d-print method that may not subject the material to the same pressures.
Do not look into laser with remaining eye.
It's not cannibalism since your name "pla" translates to "fish" in Thai.
Well played, though.
"As I kill them with toxic plastic objects I made. Wanna see my fish skull montage?"
Bullshit.
I've been using soap all my life and I haven't had any fish spring up where I use my soap.
effect/affecttttttttttttt
In other news: 3d-printed guns harmful to humans.
Who would have thought.
Check to see if he has a Californian cancer warning sticker.
I don't suffer from insanity, I enjoy every minute of it!
OK, don't print little pirate treasure chests for zebra-fish aquaria, got it.
Who cares? The problems with chemical stupidity are not just about one species of fish. Unfortunately a large portion of our population relies upon the riches of the sea. If we keep screwing up the oceans with out industrial waste, especially discarded by products and plastic garbage we will see a rapid collapse of the entire ocean biosphere. It will mean starvation on a huge scale. Your statement bespeaks volumes about the utter public ignorance of key biological systems that have given us life. You can claim ignorance because most people do not even care about what is happening because of unrestrained garbage in our oceans, those who know the truth about the unregulated dumping of toxic plastic garbage that is causing the garbage patches do not have the luxury of ignorance that you enjoy.
As you bury your head in the beach sand it is almost certain that you will also be covered in little pieces of plastic that are starting to kill fish on a global scale. large plastics the big pictureabout how and why plastics are killing more and more marine life as they break down into smaller and smaller pieces and are eaten by smaller and smaller organisms.
With the oil and plastic industry now dictating our future it is entirely possible that our chemical stupidity will cause global starvation in the next century. Either we pay attention to the environment on a global scale or we will suffer the consequences of shitting in our own nest to the extent that our environment will simply kill us off. Here is hoping that eventually we can create closed systems with the plastic industry but right now the recycling of plastics and the science to stop the toxic destruction of our world is not a priority, within the next 40 years we either stop putting toxins in the ocean or we will not survive as a species. End of story.
This message was not sent from an iPhone because Peter Sellers really was a deviated prevert without a dime for the call
developmental mechanisms and pathways are highly conserved.
we don't want a repeat of thalidomide
Not sure that would help. How to tell if something has a Californian cancer warning sticker:
1: Is it in California?
A: Yes - It has a sticker.
B: No - It does not.
(One of my favorites was a bottle of balsamic vinegar that advertised itself as being "certified organic" on the label and had a California sticker warning that it contained lead.)
This Space Intentionally Left Blank
WHAT cyanide, you dick? Cyanide isn't a free standing thing.
And before any pricks start hitting Google, I know what cyanoogen is, thank you very much, and it's not the same thing.
Confucius say, "Find worm in apple - bad. Find half a worm - worse."
In Ontario wines need to put on the label if they contain sulfites. Not if any has been added to the wine, just if the wine contains any. Since sulfites are a byproduct of fermentation all wine contains some and so every wine in Ontario has that stupid message on the label, even the organic wines. If there's a message it should be either stating that sulfites have been added or giving the concentration of sulfites.
Mind you I'm extremely sensitive to the taste of sulfites so that I notice them even in organic wines. In fact there's only one wine that I do like because I don't taste them.
No, ABS does not outgas HCN.
There is a report out there about a flame test of nylon carpeting, which was found to off gas HCN while burning.
3D printing does not burn the filament, nylon filaments do not off gas HCN, and ABS filament certainly doesn't either.
=Smidge=
Reminds me of those old adverts for Radium, how it'll brighten your teeth etc etc. Maybe one day people will look back at all those Kickstarter videos for 3D printers they way we look at those.
3d printed fish contraception. Who knew it was this versatile!
Welcome to the Panopticon. Used to be a prison, now it's your home.
However, there are 3D printers working here at the UW which can bioprint solar cells on flexible film, and ones that can even bioprint compostable furniture NOT USING PLASTICS.
Plastics are a transitory thing, in terms of what can be printed. Eventually, just as we can 3D print organs, we will do the same and move off plastics.
-- Tigger warning: This post may contain tiggers! --
Not just Ontario, the labeling of containing sulfites is widespread. I agree, labels should only indicate if sulfites are added, but as you mentioned, sulfites are naturally occurring and a small amount are usually added to stop fermentation.
Tip: white wines contain more sulfites than red wines.
hmmm, interesting read
http://response.restoration.no...
While it's true that these areas have a higher concentration of plastic than other parts of the ocean, much of the debris found in these areas are small bits of plastic (microplastics) that are suspended throughout the water column. A comparison I like to use is that the debris is more like flecks of pepper floating throughout a bowl of soup, rather than a skim of fat that accumulates (or sits) on the surface.
That is precisely the problem, because the plastic breaks down into tidbits and some of the really nasty toxic ones become indistinguishable from the food that fish eat. Further to that sockeye salmon and other Oncorhynchus and fish everywhere are starting to show up with bellies full of plastics http://www.npafc.org/new/publi...
Naturally the ocean gyres are slowly churning the plastics into smaller and smaller pieces and they are also breaking into bits on shorelines of islands and the continents. So it is not as if there is a great garbage dump out there but the truth is that there is a level of ongoing human caused pollution that is will eventually do permanent damage to much more than the ocean's key ecosystems.
The alarmist videos and Fox News style environmental news shows do not show the real extent of the problem. They are not scientifically sound and are not really informing the public about the real problem with the world dominating petro industrial complex. Unfortunately the real problems are much more insidious and hidden as the quote I appended coming from your link clearly indicates.
Perhaps it is far better instead to scare the shit out of people with videos like this one. Hopefully the extent of the real damage going on will finally be recognized by J. Q. Public, before another Bush league petro president takes over the reigns of power.
Even Obama has stated that a lack action to change our attitudes towards the abuse of our shared environment by not being able to halt the dismissal of science, largely by the rich industry lobbies in Washington, is one of the greatest regrets he will have when he surrenders the reigns of power. Truth is it does not matter who becomes the President anymore the government is now run by the industry lobbies not the people and certainly not by truth!
This message was not sent from an iPhone because Peter Sellers really was a deviated prevert without a dime for the call
From the article:
"Other unanswered questions include how to dispose of the waste material â" both solid and liquid â" created by 3-D printers. At this point, the researchers think it is best to take it to a hazardous waste center."
So how does the hazardous waste center dispose of the material if they don't yet know what aspect of the 3D printed part makes it hazardous? I assume there is a catch all process for such materials, like sealing it up real tight into something that won't leak and dropping it down a really deep hole. Perhaps another catch all is heat it up so hot that any molecules in the material are broken down to their constituent atoms.
Also, once we know what makes them hazardous then it is quite possible we can find a means to remove that aspect of the material and/or find a means for a user of that material to perform whatever process is necessary to render it inert. Such as if the process is to expose the 3D printed product to UV light then tell the manufacturer or user that it should be left out in the sunlight for how many hours it takes to destroy the hazardous material. For some items, like wind chimes and license plate holders, the UV exposure would be expected in normal use.
While this is certainly interesting it seems to me that this article is click bait, scaremongering, or both. Lots of people have been using 3D printed products without any health problems showing up. This is really something that should be of interest only to fish breeders and material scientists.
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Sometimes, the world is your straight man, and you just gotta celebrate when it happens!
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I like that one - tap water causes cancer...
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