Publications by authors named "A Kwade"
Article Synopsis
- Filamentous microorganisms, like fungi, have complex structures made up of branched hyphae, and accurately measuring the mechanical properties of these hyphae is essential for understanding their behavior.
- This study introduces a novel microfluidic system that measures the bending stiffness of individual fungal hyphae more accurately by positioning the samples away from interfering walls, resulting in better measurement outcomes.
- The findings indicate that the bending stiffness of certain hyphae is significantly higher than previously recorded, while the Young's Modulus, describing the cell wall elasticity, shows similar values across different fungal types, aiding future research on how cultivation conditions affect hyphal properties and overall fungus behavior.
Article Synopsis
- The survival of probiotic microorganisms like Saccharomyces cerevisiae is crucial for their health benefits, necessitating careful handling during production, particularly in drying and tableting processes.* -
- Previous research identified protective additives for spray-drying and explored the effects of tablet formulation, but there was little focus on the impact of multiple compressions during the tableting process.* -
- The study found that compressing tablets up to five times does not significantly change tablet strength or microorganism survival, suggesting that earlier findings from single compression studies are applicable, and that the inactivation of probiotics during tableting is linked to porosity reduction rather than compression methods.*
Article Synopsis
- The research explores how adhesion forces among submicron particles affect processes like agglomeration, focusing on factors like particle size and surface roughness.
- Experiments were conducted using colloidal probe atomic force microscopy (cp-AFM) to measure adhesive forces in silica and polystyrene, while surface energies were assessed through the capillary rise method.
- Findings reveal a relationship between measured adhesion forces and surface energy using various models, identifying substrate and particle roughness, as well as material behavior, as key factors impacting adhesion.
Article Synopsis
- Battery production cost models help evaluate the competitiveness of various battery designs and manufacturing methods.
- We introduce a bottom-up approach to calculate different cost types for battery production, making it easier to compare across industries and research fields.
- Our publicly available tool uses current data to assess production costs, aiming to support advancements in electrified mobility by finding ways to lower these costs.
Future industrial applications of microparticle fractionation with deterministic lateral displacement (DLD) devices are hindered by exceedingly low throughput rates. To enable the necessary high-volume flows, high flow velocities as well as high aspect ratios in DLD devices have to be investigated. However, no experimental studies have yet been conducted on the fractionation of bi-disperse suspensions containing particles below 10 µm with DLD at a Reynolds number (Re) above 60.
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