99 search results for “plastic samen” in the Staff website
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Plastic Detectives and Wildlife Guardians
PhD defence
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Paul VriendFaculty of Science
p.vriend@cml.leidenuniv.nl | 071 5272727
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New technology could make hard-to-recycle plastics recyclable
Cookware handles, electrical plugs, brake pads. Unlike other plastics, these ‘thermosets’ cannot simply be melted down and reshaped, making them difficult to recycle. Chemist Roxanne Kieltyka and her team are now exploring a way to make these materials recyclable, potentially transforming the way we…
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Jo-Anne VerschoorFaculty of Science
j.verschoor@biology.leidenuniv.nl | 071 5272727
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Kilotonnes of 'recycled' Dutch plastic waste end up in the sea
On paper it is recycled, but in reality enormous quantities of plastic waste from the Netherlands end up in Asian seas. Researchers from the Leiden Institute of Environmental Sciences charted the fate of plastic food packaging waste from the Netherlands. They published their results on July 8 in the…
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'One in five bacteria we tested were capable of breaking down plastic'
Leiden PhD candidate Jo-Anne Verschoor discovered that nearly twenty percent of the bacterial strains she studied could degrade plastic, though they needed some encouragement to do so. ‘Bacteria are just like people,’ says Verschoor. Her research was published in the journal Communications Biology,…
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Students work on bacterium that makes sustainable plastic
A group of biology students are working on a solution to the world’s plastics problem by getting bacteria to make biodegradable plastic.
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Plastic in cigarette filters: why smoking is bad for the environment too
We all know smoking is bad for our health. But we might not have known that the cigarette filters that litter our streets also impact the environment. Esther Kentin is a lecturer at Leiden Law School. She is raising awareness of the University’s cigarette butt problem.
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Working together on the plastic problem: how to keep citizens engaged?
What motivates citizens to participate in a citizen science project on plastic pollution? And does that motivation change over time? Liselotte Rambonnet tried to answer these and other questions with her research on the Clean Rivers (‘Schone Rivieren’) project. Rambonnet is a PhD student at the Institute…
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Christina GalaftonFaculty of Science
c.galafton@cml.leidenuniv.nl | 071 5272727
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Arko GhoshSocial & Behavioural Sciences
a.ghosh@fsw.leidenuniv.nl | +31 71 527 5123
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Liselotte RambonnetFaculty of Science
l.rambonnet@biology.leidenuniv.nl | 071 5275082
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Corrugated plastic unveils a new design principle for programmable materials
Martin van Hecke en Anne Meeussen publiceren in het tijdschrift Nature over mechanische metamaterialen. Ze hebben een nieuwe klasse multistabiele materialen ontdekt. Dit is gebaseerd op ribbeltjes plastic.
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Whale poop reveals plastics problem: three million microplastics per day
Whales in the vicinity of the city of Auckland, New Zealand consume large amounts of microplastics every day. A team of international researchers reached this conclusion after carefully examining whale poop. The team included Thijs Bosker, Associate Professor in Environmental Sciences at Leiden University…
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Jatmiko Wahyudi-Faculty of Science
j.w.wahyudi@cml.leidenuniv.nl | +31 71 527 2727
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Poor countries recycle far more of our plastic than we thought. But it's not enough.
Countries that import plastic waste recycle an average of at least 63 percent of it. This is surprising, as we previously believed that the vast majority was incinerated or ended up as litter. This was discovered by PhD candidate Kai Li and his colleagues from the Institute of Environmental Sciences in…
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Thijs BoskerFaculty of Science
t.bosker@cml.leidenuniv.nl | 071 5272727
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Plastics are causing stress to crops (and biodegradable alternatives do too)
Micro- and nanoplastics cause stress to crops such as lettuce and carrots, PhD candidate Laura Julia Zantis found. This can lead to reduced growth and a lower nutritional value. Biodegradable plastics have this effect too, likely because of chemicals they release during degradation.
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discovered enzyme could play crucial role in bacterial breakdown of plastics
Leiden researchers have discovered an enzyme that helps bacteria feed on everyday plastics. This common enzyme could play a crucial role in future research and eventually in addressing the global plastic crisis. The study was published in Nature Communications.
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Malformations in heart, eyes and nervous system: Nano-plastics disrupt growth
Nano-plastics cause malformations. Meiru Wang, researcher at the Institute of Biology Leiden, looked at the extreme effects polystyrene nano-particles could have, using chicken embryos as a model. Her results were quite alarming. Especially as nano-particles are everywhere. In the air, floating through…
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From Steno to Snickers: the Anthropocene through the eyes of a coot
What looked like an ordinary coot’s nest turned out to be a five-star location with a remarkable backstory. Beneath a jetty on the Rokin in Amsterdam, biologist Auke-Florian Hiemstra discovered a true time capsule — complete with face masks from the COVID era and a Mars wrapper dating back to the 1994…
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Auke-Florian Hiemstra named Person of the Year
Auke-Florian Hiemstra is the Leidsch Dagblad Person of the Year 2022.
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The lifecycle of a cigarette filter
The university is launching a campaign to focus extra attention on our smoke-free university locations. The University is using aptly named cigarette barrels to try to show clearly just how many cigarette filters are being saved from the environment. How harmful are these cigarette filters to the e…
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Leiden biologists find nanoplastics in developing heart
Nanoplastics can accumulate in developing hearts, according to a study by biologist Meiru Wang from Leiden University. Her research on chicken embryos sheds new light on how these tiny plastic particles pose a threat to our health.
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Leiden academics nominated for Person of the Year
Leiden academics Remco Breuker and Auke-Florian Hiemstra stand to win the title of Person of the Year.
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Laurens HesselsSocial & Behavioural Sciences
l.k.hessels@fsw.leidenuniv.nl | +31 71 527 2727
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Canal Watch scoops communication prize
Canal Watch (De Grachtwacht), which has been cleaning canals since 2018, has received the Dutch Research Council (NWO) Communication Initiative Award.
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It is not easy to simplify your research
Defending your PhD research in front of nearly 300 elementary school students: that was the challenge faced by PhD candidates Jo-Anne Verschoor and Marinka de Willigen during the VUURVLIEGEN competition organised by the Centrum JongerenCommunicatie Chemie (C3). After an exciting competition, the children…
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Phenotypic plasticity and genetic adaptation of plant functional traits on global scales
PhD defence
- Keep it clean and clear – and mice won’t come near
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Painting and Drawing
Arts and leisure, Arts and leisure
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Katharina RiebelFaculty of Science
k.riebel@biology.leidenuniv.nl | +31 71 527 5149
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Life In Plastic, Not Always Fantastic: Nano- and microplastics and their impact on terrestrial plants and the food chain
PhD defence
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Esther KentinFaculty of Law
e.kentin@law.leidenuniv.nl | +31 71 527 5358
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Spinoza Prize for Professor Bernet Elzinga
How can parents avoid passing on stress and mental health problems to their children? Professor of Stress-Related Psychopathology Bernet Elzinga develops simple interventions to help both parents and young people. For her research, she has been awarded the Spinoza Prize, the highest academic honour…
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SUP for Sustainability: students clean up the Leiden canals
Some thirty Leiden students balanced on SUP boards for the Supping for Sustainability Lustrum activity. Together with alumnus Merijn Tinga, better known as the Plastic Soup Surfer, they paddled their boards through the Leiden canals and waterways, fishing plastic waste out of the water.
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The hunt for nanoplastics is on
How do you count the nanoplastics in your body? Leiden researchers published a method in Nature Protocols today that should make this easier. Important for both environmental and medicine research.
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iGEM team wins multiple awards at Grand Jamboree
Leiden's iGEM team has won high honours at the Grand Jamboree in Paris. The biology students came second in the Overgraduate category with their project PHAse Out. They also took home awards for Best Biomanufacturing Project, Best Wiki and Best Entrepreneurship as well as a Gold Medal. To top it all…
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Research and current affairs: 2022 in six stories
Life returned to something resembling normal after Covid but other crises soon took its place. These great challenges are also being felt at the University and our researchers are working on solutions. The nitrogen crisis, problems with young people’s services and an increasingly urgent climate crisis:…
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Small actions by our labs add up to big steps in sustainability
Freezers set three degrees higher, a recycling bin for plastic petri dishes or timer switches installed on equipment: a growing number of Leiden University laboratories are taking small – but effective – steps to reduce their environmental impact, via the internationally recognized Laboratory Efficiency…
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How fungi are helping us be more sustainable
Professor of Fungal Genetics and Biotechnology Arthur Ram explains how fungi can help us be more sustainable.
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Three awarded research projects in NWO-XS call
Cryogenic memories, antibiotic treatment for urinary tract infections and recycling plastic sustainably. These are the subjects of the three NWO-XS grants awarded to Leiden Science researchers.
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More efforts for less waste: reusable crockery will become standard
Facility
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Nalani Verwoord new assessor Leiden Science
Ava Bauer’s successor has been announced. From September 2023, Nalani Verwoord will be the new assessor of Leiden Science. Nalani is a third-year Biology student.
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From 1 August no more disposable products in the cafes and restaurants: reusable tableware will become standard
Facility
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How a Dutch man collecting 400,000 pieces of litter ended up on a scientific paper
Anti-litter activist Dirk Groot photographed, tagged, and collected more than 400,000 pieces of litter in the Netherlands. Now, he and his data are included in a study on urban litter by researchers from Leiden University and Andrea Ballatore from Birkbeck, University of London.
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Questions about your LU-Card
Have you applied for a LU-Card but not received it? Does your LU-Card not work? Or do you have a different question or problem? Listed below are a few common questions and problems relating to the LU-Card.
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First photo of black hole at the heart of our Galaxy
Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.
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Pilot: recycling machines at the university
Facility
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Bernhard SteubingFaculty of Science
b.r.p.steubing@cml.leidenuniv.nl | 071 5272727