Scientists make new plastic-eating enzyme in fight against pollution

17 April, 2018, 20:29 | Author: Teresa Adams
  • Scientists accidentally engineer a plastic-eating enzyme

'There is strong potential to use enzyme technology to help with society's growing waste problem by breaking down some of the most commonly used plastics, ' Oliver Jones, a chemistry expert at RMIT University in Melbourne told ABC.

Scientists from Portsmouth University and the Diamond Light Source are part of an global team that has engineered an enzyme with the potential to digest certain plastics.

British researchers created the plastic-digesting protein accidentally while investigating its natural counterpart.

The discovery could result in a recycling solution for millions of tonnes of plastic bottles made of PET, which now persists for hundreds of years in the environment, the University of Portsmouth said on its website.

John McGeehan, a professor at the University of Portsmouth in the United Kingdom who co-led the work, said that the discovery was very exciting because it meant that "there's potential to optimise the enzyme even further".

Will joint strikes on Syria prevent future atrocities by Assad government?
Syria released video of the wreckage of a bombed-out research lab, while there were no immediate reports of casualties. Say said working with refugees has not only touched her life, but it's also helped shape her views on foreign affairs .

"Serendipity often plays a significant role in fundamental scientific research, and our discovery here is no exception", said study author John McGeehan, professor in the School of Biological Sciences at Portsmouth. This ultra-powerful microscope is able to fire intense X-rays 10 billion times brighter than the Sun, giving the scientists the ability to examine the 3D atomic structure of the enzyme.

Once they understood its structure, the team noted that they could improve the performance of PETase by adjusting a few residues on its surface.

This could revolutionise the recycling process, allowing plastics to be re-used more effectively.

The findings are reported in the journal Proceedings of the National Academy of Sciences.

"This unanticipated discovery suggests that there is room to further improve these enzymes, moving us closer to a recycling solution for the ever-growing mountain of discarded plastics".

US Cuts off ZTE From American Tech Suppliers
ZTE already sells both its branded and white-label smartphones via mobile carriers AT&T and Verizon in the US. ZTE was a regular purchaser from Qualcomm Inc., Intel Corp., Acacia Communications and lumentum Holdings Inc.

Scientists from the University of South Florida and the University of Campinas in Brazil did computer modeling which showed PETase looked similar to another enzyme, cutinase, found in fungus and bacteria.

The scientist community is also excited about the evolvement of the enzyme as it could be very helpful solution to control pollution. But instead of the mutated PETase proving more ineffective at degrading PET, the team found the opposite, that it actually performed better. These differences indicated that PETase must have evolved in a PET-containing environment to enable the enzyme to degrade PET.

PETase was also tested on PEF plastic, a proposed plant-based alternative to PET that is similarly slow to degrade in nature. "It gives us scope to use all the technology used in other enzyme development for years and years and make a super-fast enzyme".

Scientists have created a mutant enzyme that breaks down plastic drinks bottles made from polyethylene terephthalate (PET), and they did it completely by accident. The Portsmouth University team, and their collaborators, the US National Renewable Energy Laboratory in Colorado, have since filed for a patent.

IPL: Jason Roy's unbeaten 91 helps Delhi Daredevils beat Mumbai Indians
Roy was efficient in using his feet to meet the pitch of the ball, as well as using the depth of the crease while shifting back. Mumbai Indians had set themselves for a total around 240, but could only reach 194 because of a poor finish with the bat.

Recommended:



Popular

Twitter reacts to Khris Middleton forcing OT with insane 3
Celtics players and coaches howled for a foul call as the sellout crowd of 18,264 at TD Garden voiced its collective displeasure. He hit a huge 3-pointer with 0.5 seconds in regulation, however Khris Middleton answered for the Bucks to force overtime.

Zuckerberg flubs details of Facebook privacy commitments
Earlier this week, Facebook founder Mark Zuckerberg was in Washington to testify at the Senate Intelligence Hearing. No one is safe from ridicule on the internet - not even the founder of its most successful social media platform.

Follow Prince Harry, Meghan Markle royal wedding updates on KSAT.com
While most people are enthralled by the romance between the Royal couple and looking forward to the wedding on May 19, Ms Greer has already predicted their separation.

Sanju Samson outguns RCB's batting might
The IPL fever has been gripping the entire nation resulting in cricket enthusiasts being excited about every match being played. RCB are now sitting in the fifth position on the points table, while RR are placed on the sixth position on the points table.

Saudi to pressure rival Iran
Tensions have eased slightly in recent months but Qatar still only sent its representative to the Arab League to the Dhahran summit.

Syrian Chemical Weapons Sites Before And After Missile Strikes
The statement also stressed that the "flames of such crime will engulf the perpetrators and supporters" of the attack on Syria. President Donald Trump has expressed his intention to pull all U.S. forces out of Syria in the near future.

Erdogan says Turkey anxious about 'wrestling' of world powers over Syria
Turkey is allegedly a North Atlantic Treaty Organisation ally, allowing USA planes to fly against ISIS from Incirlik. And in recent months, Turkey has worked closely with Russian Federation despite their differences.

Active Volume Stock: JPMorgan Chase & Co. (NYSE:JPM)
JPMorgan shares fell 2.7 percent, while shares of Wells Fargo slipped 3.4 percent and Citigroup shares dropped 1.6 percent. Atlantic Trust LLC bought a new position in shares of JPMorgan Chase during the 2nd quarter worth approximately $136,000.

Airstrikes in Syria "appropriate reaction" - Turkey
He said it would be wrong to expect the previous attacks by the Syrian regime to remain unanswered. The perpetrators of that heinous assault must be held accountable for their actions.

Google Testing Self Destructing Email For Gmail
However, the most exciting feature of all might be a new " Confidential Mode " revealed by reports on Friday. To create Confidential email you have to click on that icon, than you can set the expiration date.