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LYB buys in on plastics recycling co., a podcast to stream, and more to know this week

Looking back at top energy transition news from the year, a podcast to stream, and more of what to know going into the last week of 2023. Photo via Getty Images

Editor's note: It's a new week — start it strong with three quick things to catch up on in Houston's energy transition: looking back on top news from 2023, a podcast to stream, and more.

LYB acquires German plastic waste sourcing and engineering company

Houston-based LyondellBasell, rebranded recently to LYB, announced earlier this month that it has acquired a minority share in Source One GmbH, Leiferde, Germany, a plastic waste sourcing and engineering company, that specializes specifically in solutions for hard-to-recycle post-consumer plastic waste. This investment gives LYB access to Source One's engineering and plastic waste sourcing services, according to a news release.

"We are committed to support the growing demand of our customers for circular solutions," says Yvonne van der Laan, LyondellBasell executive vice president of Circular and Low Carbon Solutions, in the news release. “With the investment in Source One we are taking another important step to secure access to plastic waste for our recycling activities and to strengthen our Circulen product portfolio of material made from recyclable or renewable resources.”

Podcast: Moji Karimi of Cemvita talks COP28, growth of the company, and more

Moji Karimi, CEO and co-founder of Cemvita, joined the Houston Innovators Podcast last week before he had even recovered from jet lag to talk about his biggest takeaways from 2023 United Nations Climate Change Conference or Conference of the Parties, more commonly known as COP28.

"It was a pretty amazing experience," Karimi says, comparing the event to how CERAWeek has evolved to really have a strong presence in its innovation-focused track called Agora. "This year you had a massive section for innovation and sustainability. I think that will become a theme in COP29 and beyond to bring entrepreneurs, investors, and more participating in the event."

Karimi's three big observations are outlined here, as is the full podcast with him sharing more about Cemvita's growth this year.

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A View From HETI

A team led by M.A.S.R. Saadi and Muhammad Maksud Rahman has developed a biomaterial that they hope could be used for the “next disposable water bottle." Photo courtesy Rice University.

Collaborators from two Houston universities are leading the way in engineering a biomaterial into a scalable, multifunctional material that could potentially replace plastic.

The research was led by Muhammad Maksud Rahman, an assistant professor of mechanical and aerospace engineering at the University of Houston and an adjunct assistant professor of materials science and nanoengineering at Rice University. The team shared its findings in a study in the journal Nature Communications earlier this month. M.A.S.R. Saadi, a doctoral student in material science and nanoengineering at Rice, served as the first author.

The study introduced a biosynthesis technique that aligns bacterial cellulose fibers in real-time, which resulted in robust biopolymer sheets with “exceptional mechanical properties,” according to the researchers.

Biomaterials typically have weaker mechanical properties than their synthetic counterparts. However, the team was able to develop sheets of material with similar strengths to some metals and glasses. And still, the material was foldable and fully biodegradable.

To achieve this, the team developed a rotational bioreactor and utilized fluid motion to guide the bacteria fibers into a consistent alignment, rather than allowing them to align randomly, as they would in nature.

The process also allowed the team to easily integrate nanoscale additives—like graphene, carbon nanotubes and boron nitride—making the sheets stronger and improving the thermal properties.

“This dynamic biosynthesis approach enables the creation of stronger materials with greater functionality,” Saadi said in a release. “The method allows for the easy integration of various nanoscale additives directly into the bacterial cellulose, making it possible to customize material properties for specific applications.”

Ultimately, the scientists at UH and Rice hope this discovery could be used for the “next disposable water bottle,” which would be made by biodegradable biopolymers in bacterial cellulose, an abundant resource on Earth.

Additionally, the team sees applications for the materials in the packaging, breathable textiles, electronics, food and energy sectors.

“We envision these strong, multifunctional and eco-friendly bacterial cellulose sheets becoming ubiquitous, replacing plastics in various industries and helping mitigate environmental damage,” Rahman said the release.

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