Journal: Annals of Dermatology

Article Title: Dermoscopic Evolution of Pediatric Nevi

doi: 10.5021/ad.2019.31.5.518

Figure Lengend Snippet: A 8-year-old boy, nevus on the back, dermoscopy of homogeneous-reticular pattern, fading in color (A: baseline, B: 12 months after, C: 24 months after, D: 48 months after).

Article Snippet: Dermoscopic evaluations at each visit were performed using a computerized polarized-light video dermoscopy system (FotoFinder dermoscope; Teach Screen Software, Bad Birnbach, Germany) with an alcohol interface solution.

Techniques:

Journal: Annals of Dermatology

Article Title: Dermoscopic Evolution of Pediatric Nevi

doi: 10.5021/ad.2019.31.5.518

Figure Lengend Snippet: Comparison of studies about dermoscopy of pediatric nevi

Article Snippet: Dermoscopic evaluations at each visit were performed using a computerized polarized-light video dermoscopy system (FotoFinder dermoscope; Teach Screen Software, Bad Birnbach, Germany) with an alcohol interface solution.

Techniques: Comparison, Transformation Assay

Journal: Advanced functional materials

Article Title: Two-Photon Polymerized Shape Memory Microfibers: A New Mechanical Characterization Method in Liquid

doi: 10.1002/adfm.202206739

Figure Lengend Snippet: a. The illustration shows the micro-tensile testing (μTT) platform with two A-shaped vertical beams bridged by microfibers. b. Illustration of the Dill process to induce polymerization at the laser focus (i: monomer crosslinking; ii. polymerization laser parameters: laser wavelength, λ , pulse duration, τ pulse , refraction angle, θ , laser waist r λ , refractive index of the photoresist, η PR , numerical aperture, N.A .) c, d . The illustrations show a two-stage dip-in TPP process for a layer-by-layer fabrication of the μTT platform, where c shows the writing of the IP-S based vertical beams and d shows the writing of the IP-Visio testing fibers in-between. e. SEM image of the fabricated structure arrays after the two-stage TPP. Scale bar: 250 μm. f . SEM image of the fabricated IP-S platform (colored in blue) bridged by the IP-Visio fiber (colored in green). The vertical sensing and actuation beams are 280 μm in height and 15 μm in thickness; and the microfiber is 20 μm in length. Scale bar: 100 μm. g. The stiffness of the sensing beam is calibrated using AFM based force-displacement curves for both air (dark blue curve) and water conditions (light blue curve). The inset shows the diagram and the optical image of the AFM probing process (scale bar: 100 μm). Data is fitted to obtain the stiffness (air-fit, water-fit). h - j. The calculated stiffnesses of the sensing beam in air and water are shown for beams with thickness of 15 μm (Sample size: air n = 13, water n = 15), 10 μm (air n = 16, water n = 21), and 2 μm (air n = 120, water n = 75).

Article Snippet: This resulted in larger batch-to-batch variations of the IP-Visio fibers compared with IP-S fibers ( Fig. S12 and S13 ).

Techniques: Refractive Index

Journal: Advanced functional materials

Article Title: Two-Photon Polymerized Shape Memory Microfibers: A New Mechanical Characterization Method in Liquid

doi: 10.1002/adfm.202206739

Figure Lengend Snippet: a . A representative sequence of a tensile test consisting of images obtained during the phases of stretch, hold, return, and recovery. The DIC method works by tracking the dumbbell pattern (blue rectangle), the edge of the structure (red line), and the fiber itself (green). b. Displacement of the actuation structure of the μTT , d , for a set of experiments. Inset shows the overview of the experimental parameters. c . This curve shows the displacement of the sensing structure, δ , represented by the left y-axis. The force is found from the displacement, F = kδ , and is represented by the right y-axis. d . The curves show the experimental strains throughout the experiment. The blue curves represent the device strain ε D = d − δ L 0 , defined by the difference between the forcing structure displacement, d , and the sensing structure displacement, δ over the initial length, L 0 . The strain measured by the deformation of the fiber, fiber strain ε f , and represented by the green line, captures the fiber deformation. e . Averaged stress vs. strain curve of the full experiment. The curve is colored to represent the different parts of the experiment, Stretch, Hold, Return, and Recovery. The stretch and hold portions are obtained from the device strain, while the Return and Recovery portion is obtained from the fiber strain.

Article Snippet: This resulted in larger batch-to-batch variations of the IP-Visio fibers compared with IP-S fibers ( Fig. S12 and S13 ).

Techniques: Sequencing

Journal: Advanced functional materials

Article Title: Two-Photon Polymerized Shape Memory Microfibers: A New Mechanical Characterization Method in Liquid

doi: 10.1002/adfm.202206739

Figure Lengend Snippet: For each experiment: Stress-strain curves (i), Young’s modulus (ii), and yield strength (iii). Labels: Writing Power, Writing Speed, Design Dimension, Condition, Displacement Rate, Displacement Distance. a. IP-S by stretching the fiber with a displacement of 20 μm in both air (n = 3) and water (n = 3) conditions. b. IP-Visio by stretching the fiber with a displacement of 10 μm and 20 μm in air (n = 3) and water (n = 3) conditions, respectively. Independent sample t-test was performed for both groups. c-e . IP-Visio in water with different writing parameters. c shows the data from fibers with different laser power during writing (70% (n = 3), 80% (n = 3) and 90% (n = 3)). d shows the data from fibers with different designed writing cross-sections (1×2 μm 2 (n = 3) and 3×2 μm 2 (n = 3)). e shows the data from fibers with different writing speed (20 mm/s (n = 3) and 10 mm/s (n =3)).

Article Snippet: This resulted in larger batch-to-batch variations of the IP-Visio fibers compared with IP-S fibers ( Fig. S12 and S13 ).

Techniques:

Journal: Advanced functional materials

Article Title: Two-Photon Polymerized Shape Memory Microfibers: A New Mechanical Characterization Method in Liquid

doi: 10.1002/adfm.202206739

Figure Lengend Snippet: a. Stress-strain curves (i) as well as Young’s modulus (ii), yield strength (iii), and relaxation time (iv) collected under different displacement rates (0.2 μm/s (n = 3), 2 μm/s (n = 3), 20 μm/s (n =3)) on fibers with the same dimension and fabricated with the same set of writing parameters. b. Stress-strain curves of varied strain rate experiments which resulted in failure. c. Fracture strain vs. strain rate evaluation of experiments which resulted in failure. d, e. SEM images of IP-Visio fibers produced under the same conditions. The control fiber, which was not tested ( d ), and a fiber which was strained to failure ( e ). Inset of e displays a zoomed in cross section image of the failure point, showing a rough fracture surface. Scale bar: d , 10 μm, e , 10 μm, inset of e , 500 nm. (* p<0.05)

Article Snippet: This resulted in larger batch-to-batch variations of the IP-Visio fibers compared with IP-S fibers ( Fig. S12 and S13 ).

Techniques: Produced, Control

Journal: Advanced functional materials

Article Title: Two-Photon Polymerized Shape Memory Microfibers: A New Mechanical Characterization Method in Liquid

doi: 10.1002/adfm.202206739

Figure Lengend Snippet: a. Strain evolution of the shape recovery in air (red) followed by the addition of water (blue). Inset plot (vii) shows the device strain and beam strain during the stretch-return (the first 45 seconds). Inset images (i-vi) show the fiber strain and recovery of the strain with addition of water. b . The strain recovery for microfibers with three different cross-sections (7.2, 4.4 and 0.7 μm 2 , with test images in inset i, ii and iii) and the fit (dashed line) to obtain the recovery time constant (τ). c . The scatter plot shows the correlation of the fiber cross-section area and τ calculated in b (n=74). d-f . Strain (d) and stress (e) evolution and stress-strain relationship (f) during the four stretch-recovery tests. g . Calculated Young’s modulus (i), yield strength(ii), relaxation time (iii) and recovery time (iv).

Article Snippet: This resulted in larger batch-to-batch variations of the IP-Visio fibers compared with IP-S fibers ( Fig. S12 and S13 ).

Techniques: