The surface wettability was determined by measuring the contact angle of a water droplet (1 µL) deposited directly into the surface with the DSA100S Drop shape analyzer (KRÜSS, Hamburg, Germany). The temperature during the analysis was 20 ± 2 °C. All measurements were performed in triplicate and for two different plates.
Dsa100s drop shape analyzer
Manufactured by Krüss
Sourced in Germany
The DSA100S Drop Shape Analyzer is a laboratory instrument used for the measurement and analysis of the contact angle, surface tension, and other wetting properties of liquids on solid surfaces. It provides accurate and reliable data on the interactions between liquids and solids, which is essential for various applications such as material characterization, coating development, and surface treatment.
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Lab products found in correlation
3 protocols using dsa100s drop shape analyzer
1
Water Contact Angle Measurement
2
Pendant Drop Method for CMC Determination
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The critical micelle concentration (CMC) of APGs and SDS was estimated by surface tension measurements performed with a DSA100S drop shape analyzer (KRUSS, Hamburg, Germany) using the pendant drop method. The measurements were carried out at room temperature (23 °C ± 1.3 °C) with a stainless-steel needle 1 mm in diameter.
3
Measuring Surface Tension and CMC
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Surface tension was determined using the DSA 100S Drop Shape Analyzer (Krüss), as described by Song and Springer (1996). To assess CMC (critical micelle concentration) and CMD (critical micelle dilution), several dilutions were made of the cell-free fermented medium, from 0 to 1000. All the analyses were performed with the last-day fermentation sample, free of glycerol, as this compound could interfere with drop formation in the surface tension assay.
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