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And friction force (FF) photos in the laser-patterned DLN film are shown in Figure ten. A area close to the corner of the microcrater structure was examinedCoatings 2021, 11,12 ofto compare the friction forces around the Asundexian custom synthesis original and laser-patterned DLN surface. Comparable for the earlier studies [25], the LFM imaging was carried out using worn Si strategies using the tip Ibuprofen alcohol manufacturer radius of 0.5 . The friction contrast is clearly observed and characterized by considerably reduce friction forces in the laser-patterned region than around the original surface, see Figure 10b. Due to relatively deep craters, the contribution on the surface relief slope for the lateral force signal is not completely compensated during subtraction of two lateral force photos [46], major to “higher friction” at the crater edges. The lower friction forces in the laser-patterned area are accompanied with a lot lower pull-off forces (Fpull-off ) than around the original film, as confirmed by the force istance curves (Figure 11a) measured in different positions within the FF image in Figure 10b, namely: (1) Fpull-off = 1290 nN around the original film, (two) Fpull-off = 990 nN close to the area of redeposited material, (3) Fpull-off = 63 nN within the area of redeposited material, and (four) Fpull-off = 16 nN inside the center of a crater. This suggests that the ablated and redeposited material modifications the nanoscale surface properties inside and around the laser-produced microcraters. The region of your low-friction area with redeposited material covers the distance of 102 in the crater edge and, including the crater, it covers a circle area of 157 radius. The occurrence in the region “2” with slightly reduce friction and pull-off force (than on original Coatings 2021, 11, FOR PEER Review 13 of 16 Coatings 2021, 11, xxFOR PEER Critique 13 of to surface) is probably triggered by mass distribution of ablated clusters/particles, major 16 variation inside the structure and/or thickness from the redeposited layer.Figure 10. Surface relief (a) and friction force (b) pictures from the laser-patterned DLN film close to the corner of a microcrater Figure ten. Surface relief (a) and friction force (b) photos on the laser-patterned DLN film near the corner of a microcrater Figure 10. Surface relief (a) and friction force (b) pictures from the laser-patterned DLN film near the corner of a microcrater structure (shown in Figure 1a), load on Si tip 120 nN. The marked points (1,two,three,4) within the image are the areas of forcestructure (shown in Figure 1a), load onon tiptip 120 nN. The marked points (1,2,three,four) inFFimageimage would be the areas of structure (shown in Figure 1a), load Si Si 120 nN. The marked points (1,2,3,4) within the FF FF are the locations of forcethe distancecurves measurements, shown in Figure 11. curves measurements, shown in Figure 11. distance force istance curves measurements, shown in Figure 11.Figure 11. (a) The force istance curves measured various points around the DLN film (marked in within the FF image in Figure Figure 11. (a) The force istance curves measured inindifferent points around the DLN film (markedthe FF image in Figure 10b): Figure 11. (a) The force istance curves measured in distinct points around the DLN film (markedin the FF image in Figure 10b): (1) original film, (two) close to the area of redeposited material, (3) within the area of redeposited material, four) inside the center 10b): (1) original film, (2) the region of redeposited material, (three) in(three) within the area of redeposited material, four) in center of a (1) original film, (2) close to near the regio.