We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microplastic response of 2PP‐printed ceramics
AI summary Read the abstract
Not relevant to microplastics — this study investigates the mechanical behavior of ceramic materials made by two-photon polymerization 3D printing; the term 'microplastic response' here refers to microscale plastic deformation in ceramics, not environmental microplastic particles.
Abstract Two‐photon polymerization (2PP) additive manufacturing (AM) utilizes feedstocks of ceramic nanoparticles of a few nanometers in diameter, enabling the fabrication of highly accurate technical ceramic design with structural details as small as 500 nm. The performance of these materials is expected to differ from conventional AM ceramics, as nanoparticles and three‐dimensional printing at high resolution introduce new microstructural aspects. This study applies 2PP‐AM of yttria‐stabilized zirconia to investigate the mechanical response behavior under compressive load, probing the influence of smallest structural units induced by the line packing during the printing process, design of sintered microblocks, and sintering temperature and thereby microstructure. We find a dissipative mechanical response enhanced by sintering at lower temperatures than conventional. The pursued 2PP‐AM approach yields a microstructured material with an increased number of grain boundaries that proposedly play a major role in facilitating energy dissipation within the here printed ceramic material. This microplastic response is further triggered by the filigree structures induced by hollow line packing at the order of the critical defect size of ceramics. Together, these unique aspects made accessible by the 2PP‐AM approach contribute to a heterogeneous nano‐ and microstructure, and hint toward opportunities for tailoring the mechanical response in future ceramic applications.
More Papers Like This
Microplastic Structures
AI summary Read the abstract
This paper describes a photolithography technique for creating microscale three-dimensional plastic structures from photoresist material for use in optical and mechanical devices. The term 'microplastic' refers to the miniature scale of the structures produced and is unrelated to environmental plastic pollution.
Linking the physical and chemical characteristics of single small microplastics or nanoplastics via photolithographic silicon substrates
AI summary Read the abstract
Researchers developed photolithographic silicon substrates as a platform to co-locate individual small microplastics and nanoplastics, enabling simultaneous morphological and chemical characterization of the same single particles using multiple analytical instruments.
Identification and Characterization Methods for Microplastics Basing on Spatial Imaging in Micro-/Nanoscales
AI summary Read the abstract
This review evaluates spatial imaging techniques at micro- and nanoscales — including Raman spectroscopy, FTIR, and electron microscopy — for identifying and characterizing microplastics in environmental samples. Advancing detection and characterization methods is foundational to understanding microplastic bioavailability and their capacity to adsorb toxic chemicals that harm living organisms.
Shape analysis of microplastic fragments: A computed microtomography study
AI summary Read the abstract
Researchers applied X-ray microtomography (microCT) to characterize the 3D morphology of five secondary PET microplastic fragments approximately 2 mm in diameter, achieving a voxel size of 6.0 micrometers through optimized scanning and image processing, providing more detailed shape characterization of irregular fragments than conventional 2D microscopy allows.
CAN WE SEE SMALLER? QUANTIFYING less than 100 MICRON MICROPLASTICS WITH PHOTOMICROGRAPHS
AI summary Read the abstract
Researchers developed a double-dye optical microscopy technique combining Nile Red and a non-polar UV dye to detect and quantify microplastic particles smaller than 100 microns, a size class often missed in standard analyses. The second dye improved detection of previously elusive materials like PVC and rubber tire particles, though practical limitations remain for routine application.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.