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Science

Clothes That Kill 41

StriderA writes "Robert Engel, of Queens College at The City University of New York, and colleagues have developed a new defence against bacteria and fungi. It seems that they have created tiny molecular daggers that actually seek and destroy the fatty bacteria. Applications to include battling athletes foot to military uniforms that kill anthrax."
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Clothes That Kill

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  • Are you sure it's not still April 1st in some dusty part of the world?
  • Could I wear these and lose weight?
  • by C21 ( 643569 ) on Thursday April 03, 2003 @10:25AM (#5652243)
    such random failures as gouging of the eyeballs, slicing of the seminal vesicles, and puncturing of the lungs. Yes, the scientists were quoted as saying they havn't quite got all the kinks out.
  • by spotted_dolphin ( 595858 ) on Thursday April 03, 2003 @10:41AM (#5652333)
    Is the only way a new biotechnological development can be 'marketed' is through it's use against bioterrorism? It would be nice to see more support of how this works.

    How does this affect our own natural microflora? What is the mode of specificity for these 'blades'? Killing off our own bacteria can make us more susceptible all the other pathogens floating around.

    And I didn't think that all bacteria had a fatty coating. What about those which have high carbohydrate coatings? I thought the coat was part of the cause of their pathogenicity.

    The concept's cool, but I'd like a little more data.
    • We can now market our products as methods against Tourism! Yes, folks. As of today, we can prevent those annoying and obnoxious tourists from visiting your cities.

      Our first offering is the exploding camera. Guaranteed to take out only the tourist and not the surrounding pedestrians.

      Ok. That's tasteless. Sorry.
    • Most pure research in this country is connected, either directly or indirectly, to funding from the federal government. And right now, all sources of funds from the government are required to allot money to 'Homeland Security'.

      The government is funding anti-terrorism programs, so scientists have to do research with anti-terrorist applications. At the moment, any non-terrorist research is having a hard time finding funds.
  • by wowbagger ( 69688 ) on Thursday April 03, 2003 @10:49AM (#5652385) Homepage Journal
    This could be used not only for fabrics but for any surfaces that can have the "daggers" bonded to them, creating long-lasting antiseptic surfaces.

    However, for clothing I have a question - how would the oils in sweat affect the surface? Would they occupy all the "daggers" and prevent the microbes from being penetrated?
    • When clothes get covered in oils from sweat, it's well past time to wash them. You also need to wash off the dead bacteria for this to keep working. I assume these clothes are washable. The article didn't say (or I missed it).
  • Stand back! (Score:5, Funny)

    by dar ( 15755 ) on Thursday April 03, 2003 @11:12AM (#5652593) Homepage
    I've got a T-shirt and I'm not afraid to use it!
  • by orthogonal ( 588627 ) on Thursday April 03, 2003 @11:33AM (#5652720) Journal
    Rejoice Geeks!

    You may never have to shower again!

    (Not that you do now.)

    In other news, the "killer clothes" also absorb Dorito dust and Mountaion Dew, turning these compounds into comparitively harmless carbon monoxide.
    • Im wheat germ intolerent YOU INSENSITIVE CLOD!!
      Please correct Doritos to non wheat germ but still highly calorific particles snack thing

      hehe sorry jk ;-)
  • by MaxwellStreet ( 148915 ) on Thursday April 03, 2003 @12:28PM (#5653149)
    Why does it seem that everywhere you look there's another antibacterial product?

    As though antibiotics are the key to healthier living or something.

    There are lots of benign bacteria out there, who inhibit the growth of more dangerous strains by consuming their resources. (Competitive inhibition is the 'real' term.) Add to the fact that the antibacterial agents are leaching into the environment, thereby ensuring that only resistant bacteria thrive.

    What we're ending up with is a world in which the only bacteria are resistant to anything we can throw at them - making it harder and harder to treat the problems that they cause.

    In addition, exposure to immunological challenges like benign bacteria helps to keep our immune systems strong.

    I can see where these fabrics can be useful in military or hospital situations, but society's obsession with antibacterial wipes and soaps and gels (and now clothing) is only going to harm us long-term.
    • my usual rant (Score:3, Insightful)

      at this point is to say: in the Phillippenes they hand out Penicillin like aspirin, OTC.

      It's that sort of cavalier attitude towards broad-spectrum antibiotics that's going to one day give us a plague.

      Not that that would be a bad thing, but it isn't going to be pretty.

      Maybe it'll take out some of the trolls.
      • It's that sort of cavalier attitude towards broad-spectrum antibiotics that's going to one day give us a plague.

        SARS [google.com], anyone?

      • And in the US, we feed it to chicken and cows. I think compared with the US, the Philippines contribution to the problem is negligible.
        • Looking back, it looks like I'm xenophobic - that's not what I meant.

          In the US, bonehead doctors overprescribe AZT for whatever the hell they want.

          Actually, chicken and cows aren't so bad - though there is a chance of something crossing over, you're more likely to pick up a human strain of something that's been beefed up by crappy antibiotic usage...

          My point was supposed to be that taking antibiotics when it's not life or death is like spinning the chamber -- and a few people spinning the chamber is goin
    • Ah, but this clothing isn't chemically antibiotic, it's physically antibiotic. Using it won't create resitstant germs.
      • by arvindn ( 542080 ) on Thursday April 03, 2003 @02:01PM (#5654012) Homepage Journal
        Ah, but this clothing isn't chemically antibiotic, it's physically antibiotic.

        Well, in a limited sense. You realize, of course, that the dagger stuff is just by way of analogy.

        (From the article):
        The "blade" is a carbon chain up to 16 atoms long, populated only by hydrogen atoms. It has a strong affinity for fatty surfaces.

        That sure sounds like chemical action to me.

        However, the reaction is not specific to some compound in the microbe:

        When bacterial or fungal spores approach the fabric, their negatively charged fatty membranes are attracted to positive charges on the nitrogen-rich rings and to the fat-seeking blades.

        So since it is not selective, you're right: there is no chance of creating resistant germs. There's no way the critters can stop having fatty membranes altogether.

      • it won't create resitstant germs.

        Wanna bet?

        • As the sibling to your message pointed out, in order to resist this, bacteria need to give up their fatty exteriors altogether. This is not going to happen. If it did, it would become a bacteria that could not survive in the real world and would pose no threat to us anyhow.

          Life is quite resilient, but it's not magical. Adaptability has limits.
    • I read an article recently on Yahoo Science News [yahoo.com].

      Apparently a laboratory was wondering why so many of their lab rat offspring were being born deformed. The only different with this batch of mice is that their cages seemed to show more wear than the other mice.

      Apparently the "harsh" cleaning agents used to sterilize the cages were breaking down (softening) the polymers in the plastics of the cage. The mice would then gnaw the softer plastic. On further examination, once in the body, the chemically-alter
  • by SolemnDragon ( 593956 ) <solemndragon.gmail@com> on Thursday April 03, 2003 @12:41PM (#5653273) Homepage Journal
    Aside from the same concerns that others have voiced- what are we doing pushing more antibiotics on the public, and how the H??? do we know that this is harmless for US, i have other questions.

    What about non-bacterial illnesses (i.e., viruses, microplasms)

    Do these molecules ever come unanchored, becoming little fat-seeking molecules of death?

    How fast does a person die if they swallow a scrap of it, or some of those suddenly un-anchored molecules?

    How do you clean these garments?

    Will dead-bacteria buildup eventually render the garment useless?

    How do you dispose of these garments at that point?

    this piece was woefully short on facts, and context, and i'd love to hear more if anybody's got some other perspective on this new 'fabric of doom'...

    • Do these molecules ever come unanchored, becoming little fat-seeking molecules of death?

      The article said that the "daggers" work the same way as free-floating detergent. I assumed this meant the broken or dislodged "daggers" were no more toxic than regular detergent residue.

      How many washing does it take to dislodge enough of these daggers that they don't keep your clothes free of fatty microbes?

  • by MerlynEmrys67 ( 583469 ) on Thursday April 03, 2003 @02:24PM (#5654211)
    Works for government funding, or VC funding as well... Find out what the hot topic of the day is... Storage Area Networks, Killing Anthrax... Find a way of writting those things into your proposal regardless of whether it makes sense ??? Profit Interestingly enough Anthrax doesn't do much damage to skin contact, you have to BREATH it into your lungs, a fancy set of clothes won't stop that unless you are wearing it as a mask, and if you are doing that I'd just assume wear a NBC suit that will protect me from the really dangerous stuff on the battlefield
    • by C21 ( 643569 )
      I was thinking the route of proposing this as use in the military was akin to using advanced technology in space. You force the trickle down technology to work, the general public will accept the product after the US MILITARY has used it or NASA ASTRONAUTS, but not after some geek in a lab claims it works wonders for protecting the body against the common cold.
  • by GuyMannDude ( 574364 ) on Thursday April 03, 2003 @03:33PM (#5654775) Journal

    I think some people are already wearing a variant of this that can kill at a distance. I was down at the local university the other day and I saw this ungodly sexy girl. Man, my heart started being so hard and fast I thought I was gonna have a heart attack! You can laugh, but if you had seen what she was wearing you probably would've dropped to your knees clutching your chest and gasping for breath, too!

    GMD

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