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DUKAS_169118752_FER
Plastic embedded with plastic eating bacteria
Ferrari Press Agency
Bacteria 1
Ref 15812
01/05/2024
See Ferrari text
Pictures must credit: Han Sol Kim / University of California San Diego
A plastic embedded with bacteria that eats it when it’s no longer needed , has been developed by researchers.
To keep the micro bugs from eating it while it's in use, the bacteria is mixed in as inactive spores.
They only start digesting the plastic once it's released into the environment.
To get this to work, the researchers had to evolve a bacterial strain that could tolerate the manufacturing process.
They discovered the evolved bacteria made the plastic even stronger.
Plastics are formed of polymers, long chains of identical molecules linked together by chemical bonds.
While they can be broken down chemically, the process is often energy-intensive and doesn't leave useful chemicals behind.
One alternative is to get bacteria to do it as some have an enzyme that breaks the chemical bonds they can use as an energy source.
A number of plastic-eating bacterial strains have been discovered recently but they need to find the plastic in the environment.
The researchers from the Department of NanoEngineering, University of California San Diego, decided to put the bacteria in TPU plastic which is one of the most common found in everyday things.
OPS:A strip of TPU containing the bacteria spores on soil (left) and after five months (right) almost completely degraded
Picture supplied by Ferrari (FOTO: DUKAS/FERRARI PRESS) -
DUKAS_169118748_FER
Plastic embedded with plastic eating bacteria
Ferrari Press Agency
Bacteria 1
Ref 15812
01/05/2024
See Ferrari text
Pictures must credit: David Baillot/University of California San Diego
A plastic embedded with bacteria that eats it when it’s no longer needed , has been developed by researchers.
To keep the micro bugs from eating it while it's in use, the bacteria is mixed in as inactive spores.
They only start digesting the plastic once it's released into the environment.
To get this to work, the researchers had to evolve a bacterial strain that could tolerate the manufacturing process.
They discovered the evolved bacteria made the plastic even stronger.
Plastics are formed of polymers, long chains of identical molecules linked together by chemical bonds.
While they can be broken down chemically, the process is often energy-intensive and doesn't leave useful chemicals behind.
One alternative is to get bacteria to do it as some have an enzyme that breaks the chemical bonds they can use as an energy source.
A number of plastic-eating bacterial strains have been discovered recently but they need to find the plastic in the environment.
The researchers from the Department of NanoEngineering, University of California San Diego, decided to put the bacteria in TPU plastic which is one of the most common found in everyday things.
OPS:Strips of plain TPU (top) and "living" TPU (bottom) at different stages of decomposition over five months of being in compost.
Picture supplied by Ferrari (FOTO: DUKAS/FERRARI PRESS) -
DUKAS_169118745_FER
Plastic embedded with plastic eating bacteria
Ferrari Press Agency
Bacteria 1
Ref 15812
01/05/2024
See Ferrari text
Pictures must credit: David Baillot/University of California San Diego
A plastic embedded with bacteria that eats it when it’s no longer needed , has been developed by researchers.
To keep the micro bugs from eating it while it's in use, the bacteria is mixed in as inactive spores.
They only start digesting the plastic once it's released into the environment.
To get this to work, the researchers had to evolve a bacterial strain that could tolerate the manufacturing process.
They discovered the evolved bacteria made the plastic even stronger.
Plastics are formed of polymers, long chains of identical molecules linked together by chemical bonds.
While they can be broken down chemically, the process is often energy-intensive and doesn't leave useful chemicals behind.
One alternative is to get bacteria to do it as some have an enzyme that breaks the chemical bonds they can use as an energy source.
A number of plastic-eating bacterial strains have been discovered recently but they need to find the plastic in the environment.
The researchers from the Department of NanoEngineering, University of California San Diego, decided to put the bacteria in TPU plastic which is one of the most common found in everyday things.
OPS:A biodegradable "living plastic" is made by combining thermoplastic polyurethane pellets (left) and Bacillus subtilis spores (right) that have been engineered to survive the high temperatures used to produce the plastic.
Picture supplied by Ferrari (FOTO: DUKAS/FERRARI PRESS)