Case Study B2: Environmental Impact of Advanced Materials on Marine Fauna and Flora
Case Study B2: Environmental Impact of Advanced Materials on Marine Fauna and Flora
Advanced materials created by combining polymeric and inorganic components (as in the examples of nanoparticle-loaded high-performance fibres or hybrid clusters) can enter the environment and degrade there. The effects of the resulting degradation products on the environment and living organisms are not taken into account in current concepts. As more and more advanced materials are developed, it is important to accompany the engineering process with the study of environmental impacts. In case study B2, the effects of advanced materials are compared with those of “conventional” particles such as microplastics and naturally occurring inorganic particles. The aim is to assess the environmental impact of advanced materials.
Impact of advanced materials on terrestrial and aquatic plants atIPB
Different effects of the degradation products of advanced materials are possible. They can serve as vectors for pathogens, release toxins, mechanically damage tissue and/or lead to higher energy requirements of the organisms. At IPB, the immediate reaction of soil plants to the materials developed in case studies A1 and B1 will be investigated at the molecular level, with a focus on secondary metabolomics.
Impact of advanced materials on marine carbonate-secreting organisms at ZMT
Corals and large foraminifera as well as their symbionts (algae) are used as model organisms for the investigation of the materials developed in case studies A1 and B1. The aquaria of the ZMT are being made available for this purpose. Particle uptake and excretion, as well as their penetration or incorporation into the organisms and their impact on metabolism and skeletal growth will be investigated.
Left: Aquarium experiment on different corals. Top right: Coral Seriatopora hystrix exposed to microplastic particles: The coral reacts by producing more slime – a very energy-intensive process – and can incorporate plastic particles into their skeleton.1 Bottom right: ForaminiferaAmphistegina sp. exposed to nanoplastic particles: The particles are ingested and are visible incorpoated in the shell in fluorescent light (orange). (Master thesis Marlena Joppien) Source: ZMT