It's not magic, these are nanometer particles added by themselves
Don't be afraid! Immediately a kind old man in a white robe appears on the screen, and explains to the mother that she only has to wash the contaminated clothes with their excellent washing powder (made only with love, at the manufacturing plant). Indeed, a short dip in the machine - and the stain disappears. At this point, a caption appears at the bottom of the screen emphasizing that despite the white coat, the friendly old man is not a doctor. So why is he wearing a white robe? Good question. Maybe he's a cook.
The positive side is that judging by the latest news from China and Australia, we may not have to wash our clothes as often in the near future. I dare to hope that the washing powder commercials will also spare us, but at this point I may be too optimistic.
Researchers (real doctors) from China and Australia report that they have succeeded in creating clothes that clean themselves. The clothes are made of wool fabric coated with titanium dioxide nanoparticles. Similar nanoparticles appear in many places in the industry, such as sun protection creams and in various food products, and they cause the material in which they are found to reflect the light and take on a festive white color. Also, when the titanium dioxide is exposed to the sun, it is able to lighten dirt stains and kill bacteria.
In order to prove the effectiveness of their fabric, the researchers liberally poured red wine on two different garments, only one of which contained the nanoparticles. As expected, a large stain formed on top of both clothes. Next, the researchers took both garments and let them sit in the sun for 20 hours. While the normal garment remained stained, the garment with the nanoparticles started a self-cleaning process, and the stain almost disappeared from the fabric. The researchers add and point out that the nanoparticles are not toxic and that they can be permanently attached to the fabric. They do not change the texture or feel of the garment.
We can only hope that in the next year the invention will be released to the general market, so that washing powder advertisements will become a thing of the past, and the white coats will return to the possession of the real doctors.
16 תגובות
Basa.. I just now sold my Nimbus 5000 2nd hand...
Have you noticed that slowly the Harry Potter books are starting to come true?
In the beginning we were informed about the scientific development of an invisibility cloak
And now clothes that clean themselves.
Is there anything to look forward to in an upcoming Quidditch match?
wonder….
**&ygit&**
Cut a third of the last three articles, glue everything together and you will have a wonderful job
What are you looking for?
I'm looking for something about technology, can you help me?
super cool
Thanks.
Also, the oxidation effect of the titanium dioxide will age the skin much faster.
It is also supposed to kill the good bacteria on the skin
Thus the skin will be more exposed to the harmful germs.
Sorry for the delay in answering.
I did not understand -
One of the actions of titanium dioxide is to reflect light and thus bring a white color. Another of its actions, as Moshe points out, is that it is able to be a strong oxidizer under the right conditions, thereby destroying the dirt compounds that adhere to the garment.
Lior -
The nanoparticles do not degrade in the process, but it is likely that there is some 'wear and tear' over time. One of the innovations in the new invention is finding the way to strongly bond the nanoparticles to the wool fibers.
anonymous -
The substance is indeed carcinogenic, but only when swallowed - and then only in large quantities. In other words, as long as it is used in the right way - for example with sunscreen - you have nothing to fear.
1 -
That's a good question. The garment smells because sweat containing nutrients accumulates in it, and bacteria and fungi eat the sweat and excrete foul-smelling waste products. The oxidation effect of the titanium dioxide should kill the bacteria and fungi on the garment, thus preventing the stench.
Keep in mind that this is all theoretical at the moment. I hope that in the coming months, when the researchers develop their invention further, we will receive more complete information about the capabilities of the new garment.
I hope I answered your questions,
Roy.
Are the clothes not smelly?
Lior and I didn't understand
Titanium dioxide is a photocatalytic material,
When exposed to ultraviolet radiation, it becomes a strong oxidizer.
Catalysts, in principle, at the end of their operation return to their original state, therefore, as long as the particles remain on the fabric they will remain active.
Titanium dioxide is already used today to create windows with a self-cleaning effect, the innovation here is in attaching the particles to the fabric.
The substance is also used in the production of soaps. Is it not carcinogenic? I once read that it is a carcinogenic oxide.
If it only causes the light to come back as white, then it's not cleaning at all and the dirt stays in the garment and you don't see it, right?
interesting article,
I came across a similar idea a year ago under the auspices of the American Air Force under whose funding self-cleaning underwear was developed for the benefit of its dedicated soldiers.
Link to the article
What happens after 200 such self-cleanings?
The amount of nanoparticles is limited, isn't it?