As an estimation of wettability, contact angle measurements were made on the substrates of interest to the present study using a Krüss EasyDrop system (model DSA20S) with the Krüss static and dynamic contact angle software (SW4001). Drops for contact angle measurements were created by dropping 3 εL of distilled water on the composites, and the angle between the surface and the water droplets was measured. Six measurements were made on each sample, which were further repeated thrice.
Easydrop system
Manufactured by Krüss
Sourced in Germany
The EasyDrop system is a compact and versatile instrument designed for the measurement of surface tension, contact angle, and other wetting properties of liquids on solid surfaces. It provides accurate and reliable data through the use of a high-resolution camera and advanced image analysis software.
Automatically generated - may contain errors
Lab products found in correlation
5 protocols using easydrop system
1
Water Contact Angle Measurement
2
Water Contact Angle Analysis of Nanofibers
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Water contact angle analysis was performed with an EasyDrop system (Krüss, Hamburg, Germany) equipped with a Stingray video-camera (Allied Vision Technologies, Ahrensburg, Germany). Water was obtained by Milli-Q (Millipore Corporation, Burlington, MA, USA) with 0.05 μS at 25 °C. Drop volume was fixed to 5 μL with a flow-rate of 180 μL min−1. Experimental analyses were carried out at room temperature (23 °C) in the presence of a relative humidity of 63%. Drop Shape Analysis v. 1.92 software was used to measure the contact angle formed after the contact of the drop with the nanofibers, within 3 s. A conic equation was used to fit drop profiles. The derivative of the fitting equation at three-phase contact point was utilized to measure the contact angles. Results were reported as average value of five measurements.
3
Water Contact Angle Analysis of Plasma-Treated Nanofibrous Mats
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
One of the fastest and easiest methods to determine wettability changes taking place on the surface of materials upon plasma treatment is WCA analysis. WCA values of untreated and plasma-treated CS/PEO and Coral/CS/PEO NFs were measured at room temperature using a Krüss Easy Drop system. In the case of plasma-treated samples, these measurements were performed immediately after plasma treatment. Water droplets (fixed volume of 2.0 μL)
obtained by means of a high-precision liquid dispenser were first deposited on the surface of the nanofibrous meshes. In a next step, images of the water drops were taken with a monochrome interline CCD video camera 10 s after droplet deposition. From the obtained images, contact angle values were determined by Laplace-Young curve fitting making use of the software provided with the instrument. Within this work, 5 independent WCA measurements were conducted over an extended area of a single sample and for each treatment condition 3 prepared samples were tested resulting in 15 WCA values per treatment condition, from which a mean value was determined.
obtained by means of a high-precision liquid dispenser were first deposited on the surface of the nanofibrous meshes. In a next step, images of the water drops were taken with a monochrome interline CCD video camera 10 s after droplet deposition. From the obtained images, contact angle values were determined by Laplace-Young curve fitting making use of the software provided with the instrument. Within this work, 5 independent WCA measurements were conducted over an extended area of a single sample and for each treatment condition 3 prepared samples were tested resulting in 15 WCA values per treatment condition, from which a mean value was determined.
4
Surface Tension Determination of Ethanol and Water Extracts
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The surface tension of the ethanol and water extracts obtained from the controlled extraction study as well as the leachable stocks of the protein stability study was determined using the EasyDrop System (Krüss, Hamburg, Germany). The measurements were performed with the pendant drop method using a 500 µL Hamilton syringe with a 0.8 mm needle diameter (Hamilton, Reno, NV, USA). A ten-fold determination was executed for each sample and subsequently averaged.
5
Graphene Surface Wettability Characterization
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Water contact angle (WCA) measurements were performed in ambient conditions by depositing 120 μL of water on the non-patterned graphene samples using a Kruss EasyDrop system. Both the as-grown and QFS 1LG samples were cleaned by vacuum annealing (~12 hours) and kept in vacuum prior the measurements to minimize any surface contamination.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!