Scientist creates lifelike cells out of metal, page 1


Pages: <<  1    2    3  >>
ATS Members have flagged this thread 20 times
Topic started on 20-6-2012 @ 04:47 PM by Aloysius the Gaul

Scientist creates lifelike cells out of metal


www.mnn.com
Scientists trying to create artificial life generally work under the assumption that life must be carbon-based, but what if a living thing could be made from another element?

One British researcher may have proven that theory, potentially rewriting the book of life. Lee Cronin of the University of Glasgow has created lifelike cells from metal — a feat few believed feasible. The discovery opens the door to the possibility that there may be life forms in the universe not based on carbon,
(visit the link for the full news article)


reply posted on 20-6-2012 @ 05:30 PM by CynicalDrivel
1. Not a functioning organism as of yet.
Cronin's team has also created bubbles inside of bubbles, which opens the door to the possibility of developing specialized "organelles." Even more compelling, some of the iCHELLs are being equipped with the ability to photosynthesize.
[...]
Although they aren't equipped with anything remotely resembling DNA, and therefore can't replicate themselves in the same way that real cells do, Cronin has nevertheless managed to create some polyoxometalates that can use each other as templates to self-replicate.
This is all he's done, the rest is speculation. What is funny is that a lot of enzymes and proteins self-replicated in pretty much this same manner, and no scientist out there calls them alive.

2. Serves no purpose as of yet. And I'm not talking about serving a purpose for us. Photosynthesis is an awesome way to store energy....may be able to harness this for better solar panels, one day.I mean that it serves no purpose for itself yet. It's not to that point. It's at a "make a bubble, copy a bubble" stage, so it can't be artificial life--yet.

3. Evolving into what? This is worded in an over-inflationary way, so as to make this thing look further along than it is. This is going to require more than hints before one should jump on this bandwagon.

4. This is creation. Not necessarily a "creationist view", but creation nonetheless:
some of the iCHELLs are being equipped
When you equip a bubble you make by forcing metals through some solution, you are creating. If and when you let them self-procreate, you still haven't changed a thing about these things being mere creations.

But overall? Awesome. I can see some applications that this would be useful for, in the future....as long as it doesn't have to stay immersed in it's solution to function.


reply posted on 20-6-2012 @ 05:41 PM by CynicalDrivel
reply to post by Aloysius the Gaul



The metallic bubbles are certainly cell-like, but are they actually alive? Cronin has made a compelling case for the comparison by constructing the iCHELLS with a number of features that make them function much as real cells do.
No one is saying that they are, but "Cronin has made a compelling case" for them being alive. That's the issue. The case is not that compelling, at all, yet. But I could see this work actually getting to that point, one day.


Problem is that without a genetic code, this stuff is basically going to replicate as it touches more material, while in-solution--there's no "stop" code. The same way that left-handed, non living, artificial vitamin E would warp natural vitamin E into the same folded type as the artificial, or that dangerous prions take over the body (Mad Cow, Kuru.)


reply posted on 20-6-2012 @ 05:55 PM by Aloysius the Gaul
reply to post by CynicalDrivel



The compelling case is for comparing them to cells - not for them being alive. The 2nd use of "compelling" is also in refernce to their "lifelike" qualities.

As I read it the case is not that they ARE alive, but that they replicate many of the characteristics of life.

It is perhaps clearer in the New Scientist article-

It's early days; other synthetic biologists are reserving judgement for now. Cronin's bubbles are never going to be truly life-like until they carry something like DNA to drive self-replication and evolution, says Manuel Porcar of the University of Valencia in Spain. That is theoretically possible, he says, "but I cannot imagine what kind of system they would implement". Cronin isn't sure yet either, but last year he showed that he could get polyoxometalates to use each other as templates to self-replicate (Science, DOI: 10.1126/science.1181735).


that is abreviated a bit in the article I quoted in the OP.


reply posted on 20-6-2012 @ 06:19 PM by CynicalDrivel
reply to post by Aloysius the Gaul


I got that from the original, but thanks for the other link as well. But *drily*: being compellingly like a cell, considering that cells are alive, is going to cause people to make note of whether or not the thing is alive or not enough to be like a cell in the first place. Merely being a sphere like many cells (but not all) is like stating a bouncy ball is a cell. Putting a bouncy ball inside of a bouncy ball is not making a cell-like thing, nor is making a bouncy ball that makes other bouncy balls. The compelling enough to be considered like a cell, or lifelike, since a cell is alive, is just not there yet. Not a matter of "having an argument against this thing being alive because someone said they were"--that's not happening....well, not yet, and let's hope people stay off that path.

Besides, merely stopping at the sentence I pulled that from, you're right.
Cronin has made a compelling case for the comparison by constructing the iCHELLS with a number of features that make them function much as real cells do.
Taking the whole context of the paragraph, I'm right.
The metallic bubbles are certainly cell-like, but are they actually alive?
This is the question: is it alive? The sentence I quoted from is the answer that they're going to give to this question--with further sentences to expound on it. Context is far more than 1 sentence in a paragraph.

~~~~~~~~~~ Added in:

But: it's an open answer. The writer and the creator are leaving this rather open, right now, leaving the reader to come to a conclusion.
edit on 20-6-2012 by CynicalDrivel because: (no reason given)



reply posted on 20-6-2012 @ 06:35 PM by Aloysius the Gaul
reply to post by CynicalDrivel



Yes - that was het point I was trying to make - they are leaving it open. I think it would be brave of somone to conclude either way just now, given that the people actually making them don't want to do so!
Pages: <<  1    2    3  >>    ^^TOP^^



Pokemon discovered in Venezuela
  Posted 14 days ago with 47 member flags
89-Year-Old Man Develops Bladeless Bird-Friendly Wind Turbine
  Posted 11 days ago with 45 member flags
Amazing snowflake images that you have never seen before.
  Posted 14 days ago with 44 member flags
Energy Solutions THEY don\'t want you to know about
  Posted 14 days ago with 35 member flags
Does this video show a working self propelled magnetic engine?
  Posted 7 days ago with 31 member flags
Viruses: alive or not?
  Posted 11 days ago with 30 member flags
NASA reveals secrets it has hidden on the Curiosity rover.
  Posted 17 days ago with 29 member flags