Chemists Discover Structure Of Bacterial Enzyme That Generates Useful Polymers

Chemists Discover Structure Of Bacterial Enzyme That Generates Useful Polymers

Chemists discover structure of bacterial enzyme that generates useful polymers

MIT chemists have determined the structure of a bacterial enzyme that can produce biodegradable plastics, an advance that could help chemical engineers tweak the enzyme to make it even more industrially useful.

The enzyme generates long polymer chains that can form either hard or soft plastics, depending on the starting materials that go into them. Learning more about the enzyme’s structure could help engineers control the polymers’ composition and size, a possible step toward commercial production of these plastics, which, unlike conventional plastic formed from petroleum products, should be biodegradable.

“I’m hoping that this structure will help people in thinking about a way that we can use this knowledge from nature to do something better for our planet,” says Catherine Drennan, an MIT professor of chemistry and biology and Howard Hughes Medical Institute Investigator. “I believe you want to have a good fundamental understanding of enzymes like this before you start engineering them.”

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More Posts from Smparticle2 and Others

7 years ago
How Do You Build A Metal Nanoparticle?

How do you build a metal nanoparticle?

Novel theory explains how metal nanoparticles form

Although scientists have for decades been able to synthesize nanoparticles in the lab, the process is mostly trial and error, and how the formation actually takes place is obscure. However, a study recently published in Nature Communications by chemical engineers at the University of Pittsburgh’s Swanson School of Engineering explains how metal nanoparticles form.

“Thermodynamic Stability of Ligand-Protected Metal Nanoclusters” (DOI: 10.1038/ncomms15988) was co-authored by Giannis Mpourmpakis, assistant professor of chemical and petroleum engineering, and PhD candidate Michael G. Taylor. The research, completed in Mpourmpakis’ Computer-Aided Nano and Energy Lab (C.A.N.E.LA.), is funded through a National Science Foundation CAREER award and bridges previous research focused on designing nanoparticles for catalytic applications.

“Even though there is extensive research into metal nanoparticle synthesis, there really isn’t a rational explanation why a nanoparticle is formed,” Dr. Mpourmpakis said. “We wanted to investigate not just the catalytic applications of nanoparticles, but to make a step further and understand nanoparticle stability and formation. This new thermodynamic stability theory explains why ligand-protected metal nanoclusters are stabilized at specific sizes.”

Read more.


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8 years ago
Touched By The Sun

touched by the sun

by Denny Bitte

8 years ago
In California’s Salinas Valley, Known As The “Salad Bowl Of The World,” A Push Is Underway To Expand
In California’s Salinas Valley, Known As The “Salad Bowl Of The World,” A Push Is Underway To Expand
In California’s Salinas Valley, Known As The “Salad Bowl Of The World,” A Push Is Underway To Expand
In California’s Salinas Valley, Known As The “Salad Bowl Of The World,” A Push Is Underway To Expand

In California’s Salinas Valley, known as the “Salad Bowl of the World,” a push is underway to expand agriculture’s adoption of technology. Special correspondent Cat Wise reports on how such innovation is providing new opportunities for the Valley’s largely Hispanic population. Watch her full piece here: http://to.pbs.org/2gLmEga

8 years ago
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel
Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel

Tuz Gölü - Cereal  / WORDS & PHOTOS: Peter Edel

FOR THE AMERICAN COLOUR FIELD PAINTER BARNETT NEWMAN, THE EMPTY, BOUNDLESS LANDSCAPE ENHANCED AN INDIVIDUAL’S SENSE OF PRESENCE WITHIN THEM. THE TUZ GÖLÜ, THE SALT LAKE LOCATED IN THE CORE OF TURKEY’S ANATOLIAN PENINSULA, IS ONE OF THE PLACES IN THE WORLD WHERE THIS UNDERSTANDING IS EXPERIENCED MOST PROFOUNDLY.

7 years ago
Entering The House Owned By A Friend Working In The Private Sector, The Grad Student Anxiously Reassesses

Entering the house owned by a friend working in the private sector, the grad student anxiously reassesses many of his life choices.


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:o[
8 years ago

Ya sneaky! :)

Hugh Laurie Honored With Star On The Hollywood Walk Of Fame October 25 Th 2016
Hugh Laurie Honored With Star On The Hollywood Walk Of Fame October 25 Th 2016
Hugh Laurie Honored With Star On The Hollywood Walk Of Fame October 25 Th 2016
Hugh Laurie Honored With Star On The Hollywood Walk Of Fame October 25 Th 2016
Hugh Laurie Honored With Star On The Hollywood Walk Of Fame October 25 Th 2016

Hugh Laurie Honored With Star On The Hollywood Walk Of Fame October 25 th 2016

(..and was about time!!!!! )

8 years ago
「Howls Moving Castle (2004) {+color Palletes} 」insp.
「Howls Moving Castle (2004) {+color Palletes} 」insp.
「Howls Moving Castle (2004) {+color Palletes} 」insp.
「Howls Moving Castle (2004) {+color Palletes} 」insp.
「Howls Moving Castle (2004) {+color Palletes} 」insp.
「Howls Moving Castle (2004) {+color Palletes} 」insp.

「Howls Moving Castle (2004) {+color palletes} 」insp.

8 years ago

Your blog is super cool! I have a few questions. How do you get your equipment and chemicals to carry out your experiments? I was just wondering as I'd like to start doing experiments at home. What would be a good experiment to start with also? Sorry if you have already answered these questions

Hey, thanks for the kind words! This is going to be a long answer! Let’s start with equipment:

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