Wettability was qualitatively examined via the measuring water contact angle (WCA) using a contact angle goniometer (DA 30, Krüss, Hamburg, Germany) equipped with internal image analysis software. Distilled water (2 μL) was dropped on the surface of dry PLA scaffolds at room temperature and the wetting process was recorded using a high-speed digital camera. Average WCA was obtained by performing on five random regions in a specimen.
Da 30
Manufactured by Krüss
Sourced in Germany
The DA 30 is a drop shape analyzer developed by Krüss. It is designed to measure the contact angle and surface tension of liquids on solid surfaces. The device provides accurate and reliable measurements using advanced optical techniques.
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2 protocols using da 30
1
Wettability Characterization of PLA Scaffolds
2
Characterizing Surface Morphology and Properties
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The surface morphology of the
sheets was observed by field-emission scanning electron microscopy
(Nova Nano450, FEI, Hillsboro, OR, USA) at an acceleration voltage
of 5 kV. X-ray energy-dispersive spectroscopy (EDS; Inca Energy 200,
Oxford Instruments, Oxford, UK) was used to detect the distribution
of Ca and P elements. Fourier transform infrared spectroscopy (Nicolet
6700, Thermo Fisher Scientific, Waltham, MA, USA) was performed in
the range of 650–4000 cm–1 at a resolution
of 2 cm–1. The mineral phase on the substrates was
evaluated by X-ray diffraction (Ultima IV, Rigaku, Tokyo, Japan) analysis.
Hydrophilicity was measured using a contact angle goniometer (DA 30,
Krüss, Hamburg, Germany), and the average value of five specimens
per group was measured.
sheets was observed by field-emission scanning electron microscopy
(Nova Nano450, FEI, Hillsboro, OR, USA) at an acceleration voltage
of 5 kV. X-ray energy-dispersive spectroscopy (EDS; Inca Energy 200,
Oxford Instruments, Oxford, UK) was used to detect the distribution
of Ca and P elements. Fourier transform infrared spectroscopy (Nicolet
6700, Thermo Fisher Scientific, Waltham, MA, USA) was performed in
the range of 650–4000 cm–1 at a resolution
of 2 cm–1. The mineral phase on the substrates was
evaluated by X-ray diffraction (Ultima IV, Rigaku, Tokyo, Japan) analysis.
Hydrophilicity was measured using a contact angle goniometer (DA 30,
Krüss, Hamburg, Germany), and the average value of five specimens
per group was measured.
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