SFB 1357 Mikroplastik Seminar

Montag, 08. Juli 2024
12:15 Uhr, ZOOM und Hörsaal: H33, Angewandte Informatik-Gebäude

Dr.-Ing. Gholamreza Shiravani,
Niedersächsischer Landesbetrieb für Wasserwirtschaft, Küsten- und Naturschutz

3D-Modeling of microplastic transport in tidal rivers by including the bio-geological effects

Microplastic-transport mechanisms are using a developed 3D-numerical model for a tidal river from microplastic-sources (point form and diffusive sources) to accepting seas presented. The role of the bio-geological parameters on the fate of microplastics and their corresponding parametrization are explained. Moreover, the model capabilities and uncertainties are through the application of the model for microplastics-transport in the Weser estuary discussed. Finally, the model performance is through the comparison of the model results with microplastic-measurements for the Weser river evaluated. 

Poster: Link
Link: Betriebstelle Norden, Niedersächsischer Landesbetrieb für Wasserwirtschaft, Küsten- und Naturschutz
Host: Prof. Dr. Vadym Aizinger, Wissenschaftliches Rechnen, UBT

Montag, 01. Juli 2024
12:15 Uhr, ZOOM und Hörsaal: H33, Angewandte Informatik-Gebäude

Dr. Francesca De Falco, University of Plymouth

The role of plastic alternatives and substitutes in the quest to end plastic pollution

In dem Vortrag geht es um Vor- und Nachteile von Materialien, die als Alternativen und Ersatz für herkömmliche Kunststoffe dienen. Der Fokus liegt dabei auf biologisch abbaubaren Kunststoffen und ihren verschiedenen Anwendungsbereichen. Es werden Verfahren und Techniken zur Bewertung ihres Verbleibs in der Umwelt diskutiert, insbesondere das Potenzial von Pyrolyse-Gaschromatographie-Massenspektrometrie (Py-GC-MS) zur Charakterisierung der Zusammensetzung und des Abbaus solcher Materialien. Die Erkenntnisse fließen in die Arbeit des UN Intergovernmental Negotiating Committee (INC) ein, das ein internationales Gesetz zur Bekämpfung der Kunststoffverschmutzung gestaltet.

Poster: Link
Link: International Marine Litter Research Unit, University of Plymouth
Host: Prof. Dr. Seema Agarwal, Makromolekulare Chemie II, Universität Bayreuth

Montag, 25 Juni 2024
9:00-13.00 CET, Seminarraum S 135, NW III

Projektbereichstreffen B-Projekte

Verhalten und Migration in und zwischen Umweltkompartimenten

Internes Projekttreffen für Doktoranden und PIs des Projektbereichs B, des S01-Projekts und der Z-Projekte. Die Es wird Präsentationen der Doktoranden zum Projektfortschritt geben und Diskussionen um die interdisziplinäre Zusammenarbeit zwischen allen B-Projekten zu fördern.

Organisation: Projektbereichssprecher Prof. Dr. Stefan Peiffer and Dr. Martin Löder.

Montag, 13. Mai 2024
12:15 Uhr, ZOOM und Hörsaal: H33, Angewandte Informatik-Gebäude

Andreas Thürmer, BASF

Additives as key Elements for reliable application of Polymers and their impact on Sustainability

In diesem SFB Mikroplastik Seminar wird Dipl.-Chem. Andreas Thürmer, renommierter Experte auf dem Gebiet der Polymerchemie, Einblick geben in die Welt der Additive. Additive sind Schlüsselverbindungen für die zuverlässige Anwendung von Kunststoffen und beeinflussen auch deren Nachhaltigkeit. Mit seinem Hintergrund in Physikalischer Chemie und Polymerchemie sowie jahrzehntelanger Erfahrung in der Entwicklung von Polymeradditiven bei führenden Unternehmen wie Sandoz, Clariant und jetzt BASF, bringt Herr Thürmer ein reichhaltiges Wissen und praktische Einblicke in den Bereich mit. Sein Vortrag wird Aspekte der Polymerdegradation und Polymerstabilisierung behandeln und ausgewählte Anwendungsbeispiele vorstellen.

Poster

Host: Prof. Dr. Holger Ruckdäschel, Polymer Engineering, UBT

Montag, 29. April 2024
12:15 Uhr, ZOOM und Hörsaal: H33, Angewandte Informatik-Gebäude

Prof. Dr. Kay Saalwächter, Universität Halle

Recent progress in understanding polymer crystallization

The talk will emphasize the role of advanced characterization techniques, in particular solid-state NMR and small-angle X-ray scattering, for elucidating relevant factors for semicrystalline structure formation in polymers. The aim is to elucidate so far underestimated effects, specifically those of entanglements that accumulate in the amorphous phase and of chain diffusion through the crystals that enable lamellar thickening. The main findings have relied on the study of model polymers such as poly(ethylene oxide) and different polyesters. More recent work has focused on co-polyesters and defect-rich polyolefins as well as vitrimers, where the interplay of crystallization with defects and disorder is of interest.

Host: Prof. Dr. Jürgen Senker, Anorganische Chemie III, UBT

Montag, 04.März 2024
12:00 Uhr, ZOOM und Hörsaal: H18, NWII

Dr. Inta Dimante-Deimantoviča, Latvian Institute of Aquatic Ecology - LIAE

Microplastics as stratigraphic and anthropogenic pressure markers – yes or no

The plastic pollution has wide occurrence across sedimentary environments of lakes, marine, peat deposits and glaciers, yet the acceptance of microplastics as a stratigraphic marker requires clear characterization of microplastics as a component of sedimentary cycle. We provide evidence of microplastics deposits and sedimentary dynamics from different environmental compartments in the Baltic Region. The presented studies consider microplastics from dated sediment cores and seasonal dispersal in beach sediments.

Link: Research Gate Profil
Poster
Host: Dr. Martin Löder

Montag, 12.Februar 2024
12:00 Uhr, ZOOM und Hörsaal: H18, NWII

Prof. Dr. Denise Mitrano, ETH Zürich

Embracing ecosystem complexity to understand the environmental impacts of (nano- and micro)plastics pollution

Numerous studies have made the ubiquitous presence of plastics in the environment undeniable, and thus it is no longer a surprise when researchers measure the accumulation of macroplastic litter and microplastic fragments in both urban and remote sites. Understanding plastics pollution is frequently addressed by enumerating particle burdens through monitoring studies, assessing transport between environmental compartments or as an (eco)toxicological issue. However, fewer studies address the complexities of how the presence of MPs impact natural systems and biogeochemical cycles in a holistic way. In this presentation, I will discuss both analytical method developments to better assess nano- and microplastics fate and transport and biological interactions as well as address indirect impacts of plastics pollution. Some reflections on future policies and regulations may guide us in using plastics more sustainably to reduce the negative impacts of plastics across their entire lifecycle. 

Link : Environmental Chemistry of Anthropogenic Materials
Link: Poster
Host: Prof. Dr. Holger Ruckdäschel & Prof. Dr. Christian Laforsch

Montag, 29.Januar 2024
12:00 Uhr, ZOOM und Hörsaal: H18, NWII

Dr. Bernd Reck, Vice President - Head of Research Platform Polymer Colloid Technology, BASF

Polymer Dispersions for Architectural Coatings – Challenges and Opportunities

Aqueous acrylic polymer dispersions find extensive applications in everyday products, including interior and exterior architectural coatings, waterproofing membranes, pressure-sensitive and lamination adhesives, printing inks, and binders for industrial and medical nonwovens. These waterborne binders have effectively replaced solvent-borne resins in various applications while maintaining excellent performance.

In this presentation, we will explore the utilization of acrylic polymer dispersions in architectural coatings and the specific requirements associated with these applications. Understanding the structure-property relationships and the interaction between the dispersion and coating formulation ingredients is crucial for tailoring their properties. We will delve into the influence of stabilization systems, colloidal interactions, coalescence behavior, and chemical crosslinking on the diverse application properties of acrylic latexes.

Significant technological advancements in polymer dispersions over the past few decades have facilitated the development of products that not only exhibit exceptional technical performance but also demonstrate environmentally friendly characteristics. Notable examples include interior coatings that are free from biocides and wood coatings with true one-coat hide properties.

Furthermore, we will address the recent challenge faced by polymer dispersion producers, namely the implications of the new EU Regulation on Synthetic Polymer Microparticles, which came into effect on October 17, 2023.

Link: LinkedIn
Link: Poster
Host: Prof. Dr. Andreas Greiner

Montag, 15.Januar 2024
12:00 Uhr, ZOOM und Hörsaal: H18, NWII

Prof. Dr. Gary Hardiman, School of Biological Sciences, Queen's University Belfast

Toxicological impacts of micro- & nanoplastics on human and environmental health – A systems biology approach

One Health is a holistic approach that recognizes the interconnectedness of human, animal, and ecosystem health. Plastic pollution has become a pressing issue, with plastics persisting in the environment and accumulating in various ecosystems, especially in aquatic environments. Microplastics and nanoplastics are enduring pollutants that remain intact in biological systems, potentially leading to bioaccumulation across trophic levels. These micro-nanoplastics (MNPs) have been widely acknowledged for their harmful effects on different biological levels, causing problems such as digestive tract blockage, energy depletion, inflammation, developmental defects, and behavioral changes. The leaching of chemical additives from plastics also poses risks to human and environmental health. We are undertaking a systems biology approach to study the toxicological impacts of MNPs, considering genes, proteins, metabolites, and cells, as well as organs, organisms, and populations. Marine species that ingest varying levels of plastic serve as valuable models for studying real-world plastic impacts. Abundant seabirds and the common marine hermit crab are examples of sentinel species we have used for monitoring plastic exposure effects. Humans primarily encounter MNPs through food and food packaging, potentially through inhalation. Chronic MNP exposure may lead to cumulative and long-term health effects, including inflammation, oxidative stress, lysosomal dysfunction, mitochondrial dysfunction, autophagy, apoptosis, and genotoxicity. Evidence from cell screening studies suggests that the aggregation of MNPs within living organisms can have negative long-term consequences. Addressing these issues is crucial for safeguarding the health of humans, animals, and ecosystems in the context of the One Health paradigm.

Link to Homepage: Prof. Dr. Gary Hardiman
Poster
Host: Prof. Dr. Christian Laforsch

Montag, 18.Dezember 2023
16:00 Uhr, ZOOM und Hörsaal: H18, NWII, *Weihnachtsseminar*

Prof. Dr. Jörg Matysik, Analytische Chemie - Molekülspektrokopie, Universität Leipzig

Enzymatic PET degradation

Aspects of the toxicity of PET nanoparticles, the molecular mechanism of its enzymatic degradation and the biotechnological recycling of PET.

Link zur Forschung: Prof. Dr. Jörg Matysik
Link: Poster
Host: Prof. Dr. Jürgen Senker

Für die Preisverleihung und das X-Mas Get-Together melden Sie sich bitte hier an.

Montag, 04.Dezember 2023
12:00 Uhr, ZOOM und Hörsaal: H18, NWII

Prof. Dr. Marie Sofie Møller, Protein Chemistry and Enzyme Technology, Technical University of Denmark

PET degradation by enzymes – impact and engineering of protein-surface interactions

Plastic-degrading enzymes have garnered increasing attention over the past decade as potential tools for addressing plastic waste recycling challenges. However, their efficiency in industrial applications is generally limited. A key issue is that these enzymes have not evolved to interact specifically with plastic. While many proteins tend to adhere nonspecifically to plastics, enzymes must establish precise and productive binding interactions. This specificity is essential to allow the enzyme's active site to engage with the substrate while permitting its subsequent detachment from the surface. To overcome this challenge, we explore the utilization of natural protein modules, which nature employs to facilitate interactions between enzymes and recalcitrant polysaccharides such as cellulose, starch, and chitin. Although a handful of these modules have shown promise in binding to plastic substrates, this binding diversity has not yet undergone systematic investigation. We employ a diverse array of methods to elucidate the molecular mechanisms governing these interactions: pull-down assays (high-throughput setup), enzymatic assays, NMR spectroscopy, and newly developed microscopy methods.

Link to Homepage: Prof. Dr. Marie Sofie Moller
Link: Poster
Host: Prof. Dr. Birte Höcker

Montag, 20.November 2023
12:00 Uhr, ZOOM und Hörsaal: H18, NWII

Dr. Scott Coffin, California State Water Resources Control Board

Advancing Research and Regulations to Mitigate Impacts of Microplastics

Research on microplastics has increased exponentially in recent years, however translation of studies and data into knowledge that's useful for management requires clear communication between the scientific and management communities. Recent government mandates to manage impacts of microplastics prompted rapid development of tools and methods for identifying and assessing risks, monitoring their occurrence, and modelling their transport. Despite these remarkable scientific advances, additional research is needed to overcome barriers preventing the full emergence of microplastics as a regulated contaminant suite. This talk provides critical insights from both scientific and regulatory perspectives regarding recent advances in the field and recommends a path forward to overcome these barriers. 

Homepage: California Water Boards
Link:  Poster
Host: Dr. Magdalena Mair

Montag, 06.November 2023
12:00 Uhr, ZOOM und Hörsaal: H18, NWII

Dr. Katharina Ruthsatz, Evolutionsbiologie, TU Braunschweig

Life in plastic, it's not fantastic? Effects of microplastics pollution throughout amphibian metamorphosis

Microplastics (MP) are one of the fastest-growing sources of environmental pollution due to the increase in plastic consumption and a poor plastic waste management. In living systems, MP ingestion can trigger a variety of harmful effects on digestive, endocrine, and nervous systems which might ultimately impair all vital rates. MP can also be accumulated and transferred through the food chain. Considering that amphibian population declines are at the forefront of the biodiversity crisis, understanding the toxicological risks posed by MP to amphibians is a highly important research topic for their conservation. However, such risks are still mostly unknown for amphibians. Using the African clawed frog (Xenopus laevis) as a  model species, we explored the toxicity of MP pollution in amphibian. In particular, we investigated whether polyethylene MP ingestion affects amphibian growth and development and leads to metabolic changes across two consecutive life stages (larvae and juveniles). Furthermore, we assessed MP accumulation in the body at both life stages. Our results provide first insights into the sublethal effects of MP on amphibians throughout metamorphosis as well as its potential to be ontogenetically transferred, and we demonstrate a possible coping mechanism with the nutritional repercussions accompanying MP ingestion through a plastic response in intestinal morphology.

Link to Homepage: Dr. Katharina Ruthsatz
Poster
Host: Prof. Dr. Heike Feldhaar

Montag, 26. June 2023

16:15, ZOOM und Hörsaal: H18, NWII

Prof. Dr. Alexander Steinbüchel, Institut für Molekulare Mikrobiologie u. Biotechnologie, Universität Münster

Postsynthetic Modifications of Biopolymers

Biopolymers are usually produced by fermentation of microorganisms and they are also produced or collected from plants and animals. These polymers comprise an abundant variety like cyanophycin (a storage compound occurring in cyanobacteria and others), polyisoprenoids (a typical plant polymer) and polyesters (a storage compound in many bacteria) top mention only a few examples. Our research aims at the enzymatic as well as chemical modifications of various polymers in order to widen this variety for novel biomaterials.

Link zur Arbeitsgruppe: Steinbüchel Lab
Link: Poster
Host: Prof. Dr. Andreas Greiner

Montag, 12. June 2023

16:15, ZOOM und Hörsaal: H18, NWII

Dr. Patrizia Pfohl, Colloid Science & Materials Properties, Microplastics & Nanomaterials, BASF SE

Aging of Intentionally Produced Microplastic Particles for Innovative Applications

Microplastics are ubiquitous in the environment, but their fragmentation and degradation mechanisms are not fully understood, although essential to estimate their fate and impacts. Industry has a responsibility to develop polymers that fit into a sustainable circular economy, so we aim to fill knowledge gaps regarding degradation and fragmentation processes of microplastics in different environmental compartments with the aid of appropriate laboratory set-ups for experimental reproducibility and environmental relevance. To investigate partially biodegraded microplastics occurring in complex environmental matrices, non-destructive extraction protocols with extensive controls are needed to assure particle and polymer stability, homogeneous sampling and appropriate recovery. We did biodegradation tests in combination with the developed extraction protocol for polyurethane (PU) microplastics to reveal which chemical design is needed to improve biodegradability of PU microplastics in the environment. In addition to that we developed an adapted NanoRelease protocol to investigate dry UV aging of polyamide and PU microplastics, as well as the release of micro- and nanoplastic fragments and water-soluble organics. In both studies, microplastic degradation resulted in fragmentation, but degradation strongly depends on the polymer composition and the environmental stresses. Overall, we want to underline the importance of quality control by reference materials used for spiking, extraction efficiency, and systematic comparison against blank controls for microplastic aging, extraction, harmonized data report and analysis.

LinkedIn Profile: Dr. Patrizia Pfohl
Link: Poster
Host: Prof. Dr. Holger Ruckdäschel

Montag, 15. Mai 2023
16:15, ZOOM und Hörsaal: H18, NWII

Prof. Dr. Markus Biesalski, Macromolecular Chemistry and Paper Chemistry

Tailor-made functional papers – a complex low-cost material in high-tech applications

Paper has been known for thousands of years for its unique profile of properties: bendable & foldable, high mechanical strength, and its pore structure enabling pump-free fluid transport. Its production and recycling can nowadays be seen as technologically well-optimized. It has an environmentally friendly image and fosters the growing desire of the public for sustainable materials solutions. Despite its classical applications as print, packaging and hygiene paper, it has been in focus for several years in very challenging areas, e.g. in lateral flow tests (LFT), light-weight construction materials (e.g. as a honeycomb core in door leaves or shelves), as well as most recently in paper-based packaging as well as paper-based soft robotics. In this talk I will introduce our recent efforts in understanding and tailoring paper properties by controlled functionalization of the fiber and paper-sheet interfaces. Examples progress from the use of functional wax-polymer coatings to modulate barrier properties to cross-linking of polymers with paper fibers to introduce wet-strength properties in a sustainable fashion and the spatial control of interfacial attachment of polymers inside paper to gain 4D paper-based actuators.

Link to Homepage: Prof. Dr. Markus Biesalski
Link: Poster

Montag, 30. Januar 2023
16:15, ZOOM und Hörsaal: H18, NWII

Dr. Sonja Oberbeckmann, Leibniz Institute for Baltic Sea Research, Rostock

The microplastic microbiome

Microplastics in the ocean are readily colonized by a broad range of microorganisms. The talk will cover which microorganisms use microplastics as a habitat, how environmental factors drive this colonization, and why biodegradation of plastic in the marine system is overall an unlikely process. We will also discuss whether potentially pathogenic microorganisms are hitchhiking on microplastics. Finally, potential ecological consequences of the microplastic-microbiome-interactions will be presented.

Link to Homepage: Dr. Sonja Oberbeckmann
Link: Poster

Montag, 19. Dezember 2022
16:15, ZOOM und Hörsaal: H18, NWII

Insights SFB 1357 Mikroplastik: Entstehung und Abbau von Mikroplastik unter simulierten Umwelteinflüssen und Einfluss mikrobieller Diversität und Biofilmbildung auf Abbaumechanismen von Mikroplastik-Partikeln in der Umwelt

Die SFB 1357 Teams des Projekts C01, Teresa Menzel, Nora Meides und Anika Mauel sowie des Teams C04 Gerasimos Gkoutselis und Stephan Rohrbach geben Einblicke in ihre Mikroplastikforschung. Sind Kunststoffe bzw. Mirkoplastikpartikel unserer Umwelt, sind sie dort verschiedensten Einflüssen ausgesetzt wie Sonnenstrahlung, mechanischer Belastung, Biofilmbildung und den mikrobiellen Lebensgemeinschaften in Gewässern und Böden. Wie entsteht aus Makroplastik eigentlich Mikroplastik und wird die Plastisphäre von Pilzen als neuer Lebensraum erschlossen? Wir sind gepsannt was die Promovierenden berichten!

Montag, 12. Dezember 2022
16:15, ZOOM und Hörsaal: H18, NWII

Prof. Dr.-Ing. Hans-Josef Endres, Leiter Institut für Kunststoff- und Kreislauftechnik, Leibniz Universität Hannover

Closing the gap between laboratory and field tests to investigate the aquatic degradability of plastics

Der Vortrag beschäftigt sich mit der Frage wie zur Untersuchung der aquatischen Abbaubarkeit von Kunststoffen die Lücke zwischen Labortests und realen Umweltbedingungen geschlossen werden kann. In diesem Kontext werden die zugehörigen technischen Ansätze (z.B. „Wippschüttler“, MikroCT) sowie erste Ergebnisse daraus dargestellt. Übergeordnetes Ziel ist ein verbessertes Verständnis der Zusammenhänge zwischen den Abbauvorgängen (Mechanismen, Kinetik, Halbwertszeit), den Umgebungsbedingungen (Sauerstoffverfügbarkeit, Temperatur, Salzgehalt, Lichteinstrahlung, Zeit) und den Material-parameter (Molekülaufbau, Mikrostruktur, spezifische Oberfläche) zur spezifisch Entwicklung aquatisch abbaubarer Biokunststoffe.

Link to Homepage: Prof. Dr.-Ing. Hans-Josef Endres
Link: Poster

How should we consider the role of hydraulic habitats and traits in the study of the distribution and effects of microplastics in riverine systems?

Prof. Dr. Nelson Odume, Institute for Water Research at Rhodes University, South Africa

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Macroinvertebrates, through their trait are adapted to different hydraulic habitats, which may impose on them different levels of exposure to MPs in the sink and flush zones. Drawing on the habitat template concept, and principles of hydro-geomorphology, this talk shed light on the role of hydraulic habitats in the distribution and transport of MPs, and why it is important to consider this important dimension in the ecological study of MPs. This talk also provides insights into how traits may mediate organismal exposure to MPs at the reach scale. 

Link to Homepage: Prof. Dr. Nelson Odum
Link: Poster

Monday, 25. Juli 2022
16:00, Virtual ZOOM or H18, NWII

Prof. Dr. Peter Fiener, Water and Soil Resource Research, University Augsburg
Coordinator of the EU Innovative Training Network ‘Macro and micro plastic in agricultural soil systems (SOPLAS)'

Arable soils - a leaking sink of microplastic?

This talk will focus on the potential importance of surface runoff and soil erosion as long-lasting pathway of microplastic from arable soils to inland waters. It will be subdivided into a general introduction regarding the challenges in dealing with soil and microplastic erosion on larger scales and will present original research comprising microplastic erosion process studies as well as first modelling approaches quantifying the erosion transport pathway in a mesoscale catchment. The latter underpins that even if the microplastic input to arable soils could be regulated today, soils would remain a diffuse microplastic source for inland waters for centuries

Link to Homepage: Peter Fiener
Link: Poster

Montag, 13. Juni 2022
16:00, Virtual ZOOM und H18, NWII

Prof. Dr. Bernd Nowack, Environmental Risk Assessment and Management Group, EMPA, ETH Zürich

Modeling the release of plastic and microplastic to the environment

There is still a lot of uncertainty about the quantity and main sources of plastic emissions to the environment. This presentation shows how a combined (dynamic) material flow and release modeling can be used to quantify the current and historic releases of macro- and microplastics to the environment. A polymer-specific approach is needed as large differences between the released amounts and the receiving compartments exists.

Link to Homepage: Bernd Nowack
Link: Posterankündigung

Montag, 16. May 2022
16:00, H33, AI und Zoom

Insights SFB 1357 Mikroplastik: Nachverfolgung des Mikroplastik-Transports auf der Bodenoberfläche und an der Wasser-Sediment Grenze

Die SFB 1357-Mitglieder Jan-Pascal Boos und Hannes Laermanns geben Einblicke in die aktuelle Mikroplastikforschung. Mikroplastik ist in der Umwelt allgegenwärtig. Da sich die Eigenschaften von Mikroplastikpartikeln erheblich von natürlichen Sedimenten unterscheiden können, ist wenig über die spezifischen Transportmechanismen bekannt, die für die Verteilung von anthropogenen Quellen zu natürlichen Senken verantwortlich sind. Wir stellen zwei Ansätze vor, um den Transport von unbelastetem und bioverschmutztem fluoreszierendem Mikroplastik in zwei verschiedenen Systemen zu verfolgen: An der Wasser-Sediment-Grenze in einer Versuchsrinne und während des Abflusses in einem Laboraufbau und mit Computersimulationen.

Link to Homepage: Hannes Laermanns
Link to Homepage: Jan-Pascal Boos
Link: Posterankündigung

Montag, 9. Mai 2022
16:00, H33, AI und Zoom

Dr.-Ing. Kryss Waldschläger, Assistant Professor for Fluid Mechanics at Hydrology and Quantitative Water Management Group, Wageningen University

Diverse microplastics and where to find them: Learning from natural sediment to tackle microplastic challenges

Although our knowledge of microplastics is rapidly increasing, we still have difficulties in describing these diverse particles and in understanding the basic transport processes of microplastics in the aquatic environment. However, research on natural sediments offers many approaches that can be applied or adapted to microplastics. This presentation will show what we can learn from natural sediments when it comes to particle and transport description and where we need to focus our efforts in the future.

Link to Homepage: Kryss Waldschläger
Link: Posterankündigung

Montag, 04. April 2022
16:00, H33, AI und Zoom

Insights SFB 1357 Mikroplastik: Mikroplastik ist nicht Mikroplastik -
Wenn Partikeleigenschaften über die biologische Wirkung entscheiden

Die SFB 1357 Doktoranden Matthias Völkl und Simon Wieland geben Einblicke in die aktuelle Mikroplastikforschung. Warum ist Mikroplastik nicht gleich Mikroplastik? Wann gefährden eingeatmete Mikropartikel unsere Gesundheit? Was unterscheidet sie von anderen Partikeln? Zwei aktuelle Publikationen im Journal of Hazardous Materials widmen sich genau diesen beiden Fragen. Die beiden Doktoranden bieten exklusive Einblicke in die interdisziplinäre Forschung am SFB 1357 Mikroplastik.

• Link: Posterankündigung

• Pressemitteilung UBT: From properties to toxicity: comparing microplastics to other airborne microparticles
• Open Access Original Article: From properties to toxicity: comparing microplastics to other airborne microparticles

• Pressemitteilung UB: Supposedly identical microplastic particles substantially differ in their material
• Open Access Original Article: Supposedly identical microplastic particles substantially differ in their material
  

Montag, 21. Februar 2022
16:00 Uhr, Virtual ZOOM und H33, AI

Prof. Dr. Silke Christiansen, Fraunhofer IKTS, Department: Korrelative Mikroskopie und Materialdaten

From macro- to nano-plastics - Scale bridging analytics with microscopies and spectroscopies in various matrices and preparative workflows

In her talk, Prof. Christiansen will specify the challenges of scale-bridging analytics, in particular when identifying individual, identical M/NPs in various analytical techniques is required to truly correlate various physical and chemical properties at particle level. She will moreover demonstrate the strengths of scale-bridging analytics and will introduce the nanoGPS technology as an enabler of this multi-modal analytics correlation at single particle level. Application examples from M/NPs in filters from mineral water as well as in tissue of marine animals and human derived cells will be shown.

Link to Homepage: Silke Christiansen
Link: Poster

Montag, 24.Januar 2022

Nanotechnology, Nanogeosciences, Nanoplastics: Similarities and Perspectives
Prof. Dr. Thilo Hofmann, Environmental Geosciences, Universität Wien

Hoffmann´s talk will address natural (NPs), engineered (ENPs) and microplastic (nano)particles (MPs) and specific aspects concerning the detection and prediction of nanoparticle fate. It will focus on new analytical concepts and “old” knowledge from nanogeoscience, which might be of importance for MPs research and the use of nanotechnology in the field of plant agriculture.

Link to Homepage: Thilo Hoffmann
Link: Poster

Montag, 13. Dezember 2021

Spectroscopic Detection of Microplastics
Prof. Dr. Martin Koch, Halbleiterphotonik, Philipps Universität Marburg

Several different spectroscopic methods exist to distinguish microplastics particles and natural materials typically found in the environment. We discuss the operation principles and the advantages and drawbacks of these different methods.

Link to Homepage: Martin Koch
Link: Posterankündigung

Montag, 15. November 2021

Assessing origin and fate of airborne (microplastic) particles via molecular-level composition analysis
Prof. Dr. Anke Nölscher, Atmosphärische Chemie, Universität Bayreuth

The chemical composition of airborne particles can aid to diagnose their origin, atmospheric age and impact on air quality, weather and climate. This seminar talk will highlight the potential of a molecular-level composition analysis for studying sources and impact of (microplastic) particles in the atmosphere

Link to Homepage: Anke Nölscher
Link: Posterankündigung

Montag, 08. November 2021

Microplastics interactions with biomolecules and daphnids
Prof. Dr. Iseult Lynch, Environmental Nanosciences, University of Birmingham

The talk will present some of our work on understanding the interactions of Microplastics with Daphnia magna, a key indicator species for pollution, including the importance of mode of dispersion, impacts of medium composition, and role of the acquired biomolecule corona in mediating ingestion and retention of microplastics and co-pollutants such as triclosan (a representative antibacterial found in handwashes) and diclofenac (an exemplar pharmaceutical).

Link to Homepage: Iseult Lynch
Link: Posterankündigung

Montag, 25.Oktober 2021

Possibilities to group micro- and nanoplastic particles:
Insights from the perspective of the BMBF project InnoMat.Life
PD Dr. Andrea Haase, Abteilung Chemikalien- und Produktsicherheit, Bundesinstitut für Risikobewertung (BfR)

Compared to grouping of conventional substances or nanomaterials, establishing grouping approaches for micro- and nanoscaled plastic particles (MNPs) is much more challenging. The description of the chemical composition is more complicated for polymers and these particles are inherently heterogenous in many key properties.

This talk will provide an overview on the experimental work conducted within the InnoMat.Life consortium (www.innomatlife.de) to challenge possible grouping criteria using a variety of selected MNPs including several types of polyethylene, polyamide, polyurethane, polymethyl methacrylate and a rubber material obtained from recycled truck tires. As potential grouping criteria we assessed, among others, surface reactivity and biological effects considering human and environmental model systems, transport of different environmental contaminants, sedimentation and flotation behavior as well as ageing and fragmentation rates.

Based on our current data first conclusions concerning suitable approaches and criteria for grouping of different MNPs are possible. Our work is important for developing approaches to assess risks for human health and the environment.

Link to Homepage: Chemicals and Product Safety, BfR
Link: Posterankündigung

Montag 4.Oktober 20021

Protein Engineering for Plastic Management
Prof. Dr. Ulrich Schwaneberg, Biotechnologie, RWTH Aachen

Plastics production reached ~370 million tons worldwide and our environment is massively contaminated with plastic waste. Microplastic contaminations alone are estimated to be in total 1.8-5.0 Mio tons with a yearly increase of 42 000 t (source European Chemical Agency; ECHA). Microplastic-particles can still be found in daily-used products such as cosmetics, cleaning/laundry products, and fertilizers. Based on bioaccumulation studies of Microplastic-particles the ECHA recommends wide-ranging restrictions on Microplastic in products to ensure human and environmental health. This ‘ban on microplastic’ is expected to be adopted into EU legislation till 2022, however, so far no ‘holy grail’ analytics has been developed to enable material-specific quantification of Microplastic-particles in high-throughput. In the presentation I will outline the advancement that we have achieved in designing by material-specific binding through protein engineering methodologies and their application in microplastic quantification and degradation.

Link zur Homepage: Ulrich Schwaneberg
Link: Posterankündigung

27-29.Juli 2021
Hotel The Monarch, Bad Gögging

SFB 1357 Klausurtagung, Interne SFB Veranstaltung

Montag, 19.Juli 2021
17:00 Uhr, Virtual Seminar (ZOOM)

Assessment of health risks of high aspect ratio materials: New techniques for material control and testing
Dr. Dirk Broßell, Partikelförmige Gefahrstoffe, BAuA, Dortmund

Dust of high aspect ratio materials (HARM) can be hazardous to human health when inhaled. The classical fibre pathogenicity paradigm (FPP) predicts a carcinogenic potential in humans for inhalable biodurable fibres. Innovative testing methods and the availability of materials with narrow diameter distributions like carbon nanotubes and synthetic polymer fibres will and have already contribute(d) to a better understanding of the underlying pathomechanical cell effects that motivate a revision and extension of the FPP. Apart from implementing appropiate safety measures for workers, risk prediction enables the identification of parameters for designing and manufacturing safer HARM.

Link to Homepage: Fachgruppe 4.5 Partikelförmige Gefahrstoffe und Innovative Materialien

Montag, 28. Juni 2021
17:00 Uhr, Virtual Seminar (ZOOM)

Modelling microplastic input into agricultural soils – first results and a perspective
Dr. Elke Brandes, Institut für Ländliche Räume, Thünen-Insitut, Braunschweig

In both science and society, agriculture has been featuring prominently as an emitter of microplastics into soils, but its relevance compared with other sources (industry, littering, etc.) remains largely unknown. The talk will include some spatially explicit modelling results of MP emission distributions from the BMBF funded projects PLAWES and MicroCatch_Balt, and discuss these in context with the whole transport pathway chain from terrestrial to marine environments. It will also highlight the importance of multi-scale modelling approaches towards a holistic understanding as a basis for political decision-making.

Posterankündigung: SFB 1357 Seminar Dr. Elke Brandes
Link zur Homepage: Elke Brandes

Montag,14.Juni 2021
17:00 Uhr, Virtual Seminar (ZOOM)

Nano- and Microplastics, Oil or Toxins – how Smart Rust can clean up our water
Prof. Dr. Marcus Halik, Organic Materials & Devices, Friedrich Alexander Universität Erlangen - Nürnberg

Chemically surface-functionalized SuperParamagnetic Iron Oxide Nanoparticles (SPIONs) – or smart rust – serve excellent vehicles to attract water contaminants and to allow a simple magnetic remediation of such loaded SPIONs. The surfaces of SPIONs matters in order to achieve magnetic responsive sorbents to collect efficiently different brands of nano/microplastics, different liquid hydrocarbons (oil) or special contaminants (PCBs, glyphosate). An overview of recent developments will be presented.

Posterankündiung: SFB 1357 Seminar Prof. Marcus Halik
Link zur Homepage: Marcus Halik

Montag, 24. Februar 2020
17:00 Uhr, NWIII, H36

Synthesis of functionalized, monodisperse microparticles from different plastic materials
Dr. habil Lars Dähne, Surflay Nanotec GmbH, Berlin

Link zu Homepage: Surflay

Öffentliches Seminar - Alle Interessierten sind herzlich eingeladen!

Montag, 03. Februar 2020
17:00 Uhr, NWIII, H36

Microplastic in terrestrial ecosystems
Prof. Dr. Matthias Rillig, Plant Ecology, Freie Universität Berlin

Microplastic effects have only relatively recently become a concern in terrestrial ecosystems, with research having initially focused on aquatic systems. In this talk I discuss the role of microplastic as a global change factor affecting soils and plants.

Link zu Homepage: Prof. Rillig
Ankündigung: Poster

Öffentliches Seminar - Alle Interessierten sind herzlich eingeladen!

Montag, 27. Januar 2020
17:00 Uhr, NWIII, H36

Wissenschaftskommunikation: Nachhaltigkeit und Mikroplastik
Prof. Dr. Marco Beeken, Didaktik der Chemie, Universität Osnabrück

Die Themen Umweltschutz und Nachhaltigkeit werden im Moment intensiv in der Gesellschaft, den Medien, der Wissenschaft und der Politik diskutiert. Auch wenn das allgemeine Interesse groß ist stellt man fest das viele Bürger, Journalisten und Politiker oft weniger gut informiert sind, wenn es um Details geht.
Eine wichtige Rolle in der Informationsweitergabe an die Gesellschaft, Medien und Politik spielt die Wissenschaftskommunikation. In diesem Vortrag werden theoretische Grundlagen der Wissenschaftskommunikation am Beispiel von Mikroplastik präsentiert, spezifische Veranstaltungsformate und deren Ergebnisse (Wirkung) vorgestellt.

Link zu Homepage: Prof. Beeken
Ankündigung: Poster

Öffentliches Seminar - Alle Interessierten sind herzlich eingeladen!

Mittwoch, 18. Dezember 2019
16:15 Uhr, NWI, H11

Towards non-persistent polyethylene-like materials by polymerization catalysis methods
Prof. Dr. Stefan Mecking, Chemische Materialwissenschaften, Universität Konstanz

Polyethylene is the most important plastic with excellent materials properties due to its crystallinity, yet it is persistent in a natural environment. We pursue approaches to endow polyethylene-like materials with a non-persistent nature by introducing low densities of functional groups as break points in the chain. Key are polymerization catalysis methods that are compatible with such functional groups. These also provide access to unique polymer micro- and nanoparticles for studies of the fate of microplastics in the environment.

Link zu Homepage: Prof. Mecking

Ankündigung: Poster

Öffentliches Seminar - Alle Interessierten sind herzlich eingeladen!

Mittwoch, 11. Dezember 2019
16:15 Uhr, NWI, H11

Prof. Dr. Eva Lehndorff, Bodenökologie, Universität Bayreuth
Prof. Dr. Tillmann Lüders, Ökologische Mikrobiologie, Universität Bayreuth

SFB-internes Seminar für Teilprojektleitende und Promovierende.

Mittwoch, 04. Dezember 2019, 16:15 Uhr, NWI, H11

Polymers in the underground: on the biodegradation of synthetic polyesters in soils
Dr. Michael Sander, Department of Environmental Systems Science, ETH Zürich

"Biodegradable plastics have been heavily used in agricultural applications for years, while the biodegradation of these materials in soils remained poorly understood on a fundamental level. This contribution will present highlights on our past and ongoing work on the key steps involved in polyester biodegradation in soils: microbial polymer surface colonisation, polyester hydrolysis by extracellular microbial esterases, and the microbial utilisation of polyester hydrolysis products. The talk will also summarise remaining knowledge gaps on polyester biodegradation in soils and present some ideas of how these can be addressed."

Link zu Homepage: Dr. Sander

Ankündigung: Poster

Öffentliches Seminar - Alle Interessierten sind herzlich eingeladen!

Mittwoch, 27. November 2019
16:15 Uhr, NWI, H11

Microbial Degradation of Plastics: Searching the Needle in the Haystack
Prof. Dr. Wolfgang Streit, Mikrobiologie und Biotechnologie, Universität Hamburg

"Bacteria as plastic waste disposal? Will microorganisms be able to eat microplastics in the future and thus remove them from the environment? What is behind the microorganisms, what effect they have and what opportunities there are for the reduction of nano- and microplastics will be explained here. Further I will address our latest attempts to identify plastic-degrading enzymes and bacteria by mining global metagenomes."

Link zu Homepage: Prof. Streit

Ankündigung: Poster

Öffentliches Seminar - Alle Interessierten sind herzlich eingeladen!

Mittwoch, 06. Februar 2019

Microplastic, polyethylene biodegradation and the role of copper-binding enzymes (laccase)
Prof. Dr. Ariel Kushmaro, Ben Gurion University, Beer Sheva, Israel