Static wrinkle patterns were recorded with a 3D laser scanning confocal microscope (VK-X1000, KEYENCE). The dynamic wrinkle pattern elimination/reappearance process was recorded with a profile measurement microscope (VF-7501, KEYENCE). The Young's modulus of the top film was measured by atomic force microscopy nanomechanical mapping (Dimension Icon & FastScan Bio, Bruker), where the oscillation frequency of the Z-piezo was 1.0 kHz and the peak force amplitude was set at 150 nm. The samples were scanned using Olympus microcantilevers with a spring constant of 3 N/m. The NIR light was produced by a laser diode controller (λ = 808 nm; LE-LS-808-1000TFCB, LEO Photonics). 1H NMR spectra were measured on a Varian Mercury Plus spectrometer (400 MHz) with deuterated chloroform (CDCl3) as the solvent and tetramethylsilane as an internal standard at room temperature.
Vf 7501
Manufactured by Keyence
The VF-7501 is a digital microscope manufactured by Keyence. It features a high-resolution camera and optical system to capture detailed images and video of small objects or samples. The device is designed for laboratory and industrial applications where precise visual inspection and measurement are required.
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Lab products found in correlation
2 protocols using vf 7501
1
Wrinkle Pattern Analysis and Characterization
2
Characterization of PAN Polymers
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Surface patterns and their erasure/regeneration process were recorded by a profile measurement microscope (VF-7501, KEYENCE). AFM was also carried out to measure wrinkles in tapping mode by using silicon cantilevers with a force constant of 40 N/mv (E-Sweep, Seiko Instruments Inc.). The laser source used in the experiments was a laser diode controller (λ = 808 nm; LE-LS-808-1000TFCB, LEO Photonics). 1H nuclear magnetic resonance spectra were recorded on a Varian Mercury Plus spectrometer (400 MHz) with deuterated chloroform (CDCl3) and dimethyl sulfoxide-d6 as the solvent and tetramethylsilane as an internal standard at room temperature. The cross-linking dynamics of PAN was recorded via a TU-1091 spectrophotometer (Persee). Average molecular weight was measured by gel permeation chromatography (LC-20A, Shimadzu) using THF as an eluent.
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