Correlative microscopy approach for micro- and nanoplastics detection in plant matrix
Wissler, J.; Häfner, Philipp; Szwajgier, D.; Reimann, Hans-Achim (2023)
Biophysical Journal 122 (3), 543a-544a.
DOI: 10.1016/j.bpj.2022.11.2878
Peer Reviewed
The world-wide plastics pollution into nature enters the human food chain as degradation products, influencing environmental habitat and health. Micro- and nanoplastics as foreign bodies contaminating beverages and foods on the cellular level are likely to have a long-term impact on nutrition growth, public and personal health. Nanoparticles and their spatial location are generally difficult to detect in biological specimens, especially plastic particles due to their analogous hydrocarbon-based matrix. Reliable analysis methods for the discovery of micro- and nanoplastic particles in entities are not fully established yet. We are therefore developing a correlative workflow for detecting plastics residuals in cellular tissue. We determined that light microscopy (LM) is usable for a coarse estimation of the contamination grade of plant samples. Due to its optical diffraction limit, LM rather detects nanoparticle patches than single particles, shown with fluorescent particles. Scanning electron microscopy (SEM) instead provides higher resolution, especially for single particle detection. EM sample staining is still required to depict polymerous nanoparticle specimens. Using LM and SEM data in a CLEM approach with TESCAN CORAL, discovery of contaminated plant areas is possible with single nanoparticle resolution. It reveals that nanoparticles seem to be tightly attached to the plant material. It indicates further that basic food cleaning procedures might be insufficient for particle removal. The workflow circumvents correlative sample 3D-topography issues. But insights into the plant matrix is best possible with z-information. Therefore, we additionally use focused ion beam (FIB) to determine inclusions of micro- and nanoplastics in the tissue/cellular matrix, investigating the optimal procedural approach as model for biomaterial systems. Procedural correlative microscopy provides a promising analysis method for the semiquantitative analysis of micro- and nanoparticles plant contaminations.
Robust Dynamical Component Analysis and its Application on Epileptic EEG and Motion Sense Data
Warmuth, Monika; Romberger, Philipp; Uhl, Christian; Hüper, Knut (2022)
Proceedings of the Workshop Biosignal 2022, Dresden, Deutschland.
A Matrix Formulation of Dynamical Component Analysis (DyCA)
Romberger, Philipp; Warmuth, Monika; Uhl, Christian; Hüper, Knut (2022)
Proceedings of the Workshop Biosignal 2022, Dresden.
Wasserstoff-Inselnetzwerk der Hochschule Ansbach
Schultheiß, Daniel; Jarosch, Dieter; Kapischke, Jörg (2022)
Green Efficient Technologies, Dr. Harnisch Verlags GmbH, Nürnberg, 14 - 17.
Open Access
Hydrogen-island grid of Ansbach University of Applied Sciences
Schultheiß, Daniel; Jarosch, Dieter; Kapischke, Jörg (2022)
Green efficient technologies, Dr. Harnisch Verlags GmbH, Nürnberg, 14 - 17.
Open Access
Quantifying the impact of external and internal factors and their interactions on thermal load behaviour of a building
Matschi, Christoph; Nemeth, Isabell (2022)
Acta Polytechnica CTU Proceeding 38, 25-30.
DOI: 10.14311/APP.2022.38.0025
Open Access Peer Reviewed
Use of the 3-Level Idea Diagram Method to Identify Constructive Solutions for the Development of a Thermoforming Mould
Boca, Marius-Andrei; Sover, Alexandru; Slătineanu, Laurenţiu (2022)
Bulletin of the Polytechnic Institute of Iași. Machine constructions Section 68 (4), 9-22.
DOI: 10.2478/bipcm-2022-0031
Open Access Peer Reviewed
Improved Approach to Designing the Vacuum Channels for Additively Manufactured Thermoforming Moulds
Boca, Marius-Andrei; Sover, Alexandru (2022)
Acta Technica Napocensis - Series: Applied Mathematics, Mechanics, and Engineering 65 (4S).
Open Access Peer Reviewed
Shape Recovery Properties of Pet-based 3D Printed Samples
Ermolai, Vasile; Sover, Alexandru; Nagit, Gheorghe; Irimia, Alexandru Ionut (2022)
Acta Technica Napocensis - Series: Applied Mathematics, Mechanics, and Engineering 65 (4S).
Open Access Peer Reviewed
Tensile behavior of joints of strip ends made of polymeric materials
Mihalache, Andrei Marius; Ermolai, Vasile; Sover, Alexandru; Nagit, Gheorghe; Boca, Marius-Andrei; Slătineanu, Laurenţiu; Hriţuc, Adelina; Dodun, Oana; Ripanu, Marius-Ionut (2022)
Mihalache, Andrei Marius; Ermolai, Vasile; Sover, Alexandru; Nagit, Gheorghe...
Polymers (14), 4990.
DOI: 10.3390/polym14224990
Open Access Peer Reviewed
Geometrical deviations of green parts due to additive manufacturing: a synthetic geometrical performance index
Vendittoli, Valentina; Polini, Wilma; Walter, Michael S. J. (2022)
Procedia CIRP 114, 159-164.
DOI: 10.1016/j.procir.2022.10.036
Open Access Peer Reviewed
This work presents a synthetic geometrical performance index that combines all dimensional and geometrical deviations of a printed part to
express its quality. Smaller is the value of this index, greater is the part quality. The paper demonstrates the effectiveness of this index by printing
a set of parts through Fused Filament Fabrication in a biological polymer. These parts, characterized by representive hollows, were measured by
optical scanning technology. The proposed methodology shows the advantages of this index, thus future work can focus on further printing
techniques and varying process parameter values.
The Use Of Laser Technology For Recycling Hybrid Electronic Waste
Sover, Alexandru; Zink, Markus; Ciobanu, Romeo C. (2022)
International Conference and Exposition on Electrical And Power Engineering (EPE), Iasi, Romania, 360-363.
DOI: 10.1109/EPE56121.2022.9959803
Peer Reviewed
Influence of bond interface over the lap-shear performance of 3D printed multi-material samples
Ermolai, Vasile; Sover, Alexandru; Nagit, Gheorghe (2022)
MATEC Web of Conferences 368, 01005.
DOI: 10.1051/matecconf/202236801005
Open Access Peer Reviewed
Mechanical Behaviour of Macroscopic Interfaces for 3D Printed Multi-material Samples
Ermolai, Vasile; Sover, Alexandru; Boca, Marius-Andrei; Hriţuc, Adelina; Slătineanu, Laurenţiu; Nagit, Gheorghe; Stavarache, Răzvan Cosmin (2022)
Ermolai, Vasile; Sover, Alexandru; Boca, Marius-Andrei; Hriţuc, Adelina...
MATEC Web of Conferences 368, 1004.
DOI: 10.1051/matecconf/202236801004
Open Access Peer Reviewed
Different montages and dimension reduction methods for EEG signal analysis of Interictal Epileptic Discharges
Stiehl, Annika; Anselstetter, Fabienne; Ille, Nicole; Bornfleth, Harald; Geißelsöder, Stefan; Uhl, Christian (2022)
Stiehl, Annika; Anselstetter, Fabienne; Ille, Nicole; Bornfleth, Harald...
BMT 2022, Abstracts of the 2022 Joint Annual Conference of the Austrian (ÖGBMT), German (VDE DGBMT) and Swiss (SSBE)Societies for Biomedical Engineering 67 (S1), 88.
DOI: 10.1515/bmt-2022-2001
Open Access Peer Reviewed
A Didactic Look on the Introduction of E Portfolios in a Product Design Course
Tyroller, Maria; Walter, Michael S. J.; Kätzel, Charlotte; Riess, Christian (2022)
Proceedings of the 24th International Conference on Engineering and Product Design Education, London South Bank University.
DOI: 10.35199/EPDE.2022.48
Open Access Peer Reviewed
Digital documentation and planning of student projects in engineering and product design using e-portfolios
Riess, Christian; Walter, Michael S. J.; Tyroller, Maria (2022)
50th Annual Conference of The European Society for Engineering Education (SEFI 2022), Universitat Politècnica de Catalunya, Barcelona, 2161-2165.
DOI: 10.5821/conference-9788412322262.1269
Open Access Peer Reviewed
Dimension reduction methods, persistent homology ans machine learning for EEG signal analysis of Interictal Epileptic Discharges
Stiehl, Annika; Geißelsöder, Stefan; Ille, Nicole; Anselstetter, Fabienne; Bornfleth, Harald; Uhl, Christian (2022)
Stiehl, Annika; Geißelsöder, Stefan; Ille, Nicole; Anselstetter, Fabienne...
Proceedings of the Workshop Biosignale 2022 (24. - 26.08.2022).
DOI: 10.48550/arXiv.2502.12814
Peer Reviewed
Determining the Influencing Factors on the Cooling of a 3D Printed Thermoforming Mould
Boca, Marius-Andrei; Sover, Alexandru; Slătineanu, Laurenţiu (2022)
Macromolecular Symposia 404, 2100399.
DOI: 10.1002/masy.202100399
Open Access Peer Reviewed
Strength of Contact Geometry for Multi-material 3D-Printed Samples
Ermolai, Vasile; Sover, Alexandru; Nagit, Gheorghe (2022)
Macromolecular Symposia 404, 2100320.
DOI: 10.1002/masy.202100320
Open Access Peer Reviewed
Servicestelle für Forschung und Transfer (SFT)
Hochschule Ansbach
Residenzstr. 8
91522 Ansbach
Betreuung der Publikationsseiten
Iris BoynyT 0981/4877-341
iris.boyny[at]hs-ansbach.de