Materials can 'self-destruct timer', creating self-erasing ink
This new material with self-destructing ability needs a small amount of energy to survive and at a specific time, the energy will go away. This finding by scientists can be used in many other products, but in which ink disappears.
- Discovered a new form of carbon, stronger than metal and more resilient than rubber
- Japanese scientists successfully developed soft gel like jelly, 5 times stronger than steel
Currently, we treat waste by burning them into ash or recycling and then putting them back to use in different forms. But all these measures require a large amount of material or energy.
Most of the solids we produce are created by using a covalent bond, extremely strong bonds, very difficult to break. For example, a plastic polymer is formed by tough carbon bonds that bacteria cannot break down. This is also the reason why plastics are not biodegradable.
According to Job Boekhoven, a chemist at Munich Technical University in Germany, the molecular structures in life are always "in equilibrium", meaning that in order to operate they need to be provided with an intermittent energy flow. customary If the energy runs out, these molecules will dissociate and return to a simpler state.
Boekhoven and his colleagues decided to create some materials that need energy to maintain the current state, called super molecular molecules . Initially, they created a simple colloid from microscopic particles, about the size of 1% of a hair's diameter. These small particles when added with a material will move and arrange like a pearl chain, they can adjust themselves to assemble and disassemble in a certain order at certain times.
Boekhoven said that he immediately thought that these materials could be used in the production of medicine caps, specifically that the material will protect the drug until it has reached the desired location. For example, with some drugs that produce stomach acid, the drug shell will be timed to disappear after entering the intestine.
In addition, the researchers also successfully tested a soft, transparent crystal material, but when one exposed to another fuel became opaque and cloudy. When the energy runs out, that fuel will disappear and the opaque spots become clear again.
Researchers said the special material could be used as a "self-erasing ink" to reduce paper use in things like invoices, tickets and receipts. We can create a temporary message and after a certain period of time, it will delete itself.
This study can also be used in tissue transplantation, it will disappear after it has developed its effect and the body has received enough.
You should read it
- Nanowood white materials promise special insulation
- Plastic surface self-cleaning, even antibiotic-resistant bacteria can not cling to
- Discovered a new form of carbon, stronger than metal and more resilient than rubber
- Metaphysics challenge all laws of physics
- New materials used in aircraft manufacturing are copied from human enamel
- New coating helps supersonic aircraft withstand temperatures up to 3000 degrees Celsius
- 10 kinds of 'miracle' materials challenge all laws of physics
- Listed the 16 most expensive materials in the world
- Want to Get Into 3D Printing? Here's How to Start
- Self-sustaining plastic can create more environmentally friendly wind turbines
- New materials for lithium-ion batteries can double the distance for electric vehicles
- Stunned modern medicine with newly launched tissue regeneration method
Maybe you are interested
Microsoft tests a new Power Mode option to help Windows 11 save more energy
Xiaomi develops a smart ring powered by solar energy
Solid-state batteries with 100 times more energy density can be used in Apple devices
The human brain simulation chip consumes almost no energy when there is no input information
Use heat from the human body as energy to heat the building
Miniature reactor - a solution to supply energy to lunar bases