Results 91 to 100 of about 4,898,176 (272)

Fabrication of diffraction based security elements using direct laser interference patterning

Optics Express, 2017
Product piracy impacts wide areas of the global economy resulting in multi-billion dollar losses per year. Therefore, product protection technologies are required to produce security elements with high flexibility and complexity. In this work, the fabrication of diffraction-based security elements, so called grating cell arrays, using direct laser ...
Florian, Rößler, Tim, Kunze, Andrés Fabián, Lasagni   +2 more
openaire   +2 more sources

Fiber‐Based Wearable Electronics as Adaptive Biointerfaces for Healthcare Applications

Advanced Functional Materials, EarlyView.
Fiber‐based wearable electronics have been extensively studied as adaptive healthcare biointerfaces. In this review, we classify and introduce fiber‐based systems according to biointerface design, conductive materials, transduction mechanisms, and healthcare applications, and provide a perspective on their translation toward reliable, continuous ...
Sangwoo Hong, Jinsol Kim, Yoonjae Jeong, Sejong Kang, Daeho Lee, Seung Hwan Ko   +5 more
wiley   +1 more source

Anisotropic Wetting Behavior on Gradient Surface Structures Fabricated by Direct Laser Interference Patterning on Stainless Steel

Advanced Materials Interfaces
In this work, anisotropic line‐like textures with gradually increasing spatial periods from 2.0 to 4.8 µm are fabricated on stainless steel by two‐beam Direct Laser Interference Patterning using a ps‐laser source.
Tianhao Wu, Marcos Soldera, Bogdan Voisiat, Ignacio Tabares, Andrés Fabián Lasagni   +4 more
doaj   +1 more source

Systematic Control of Primary and Secondary Structure Periods in Four-Beam Direct Laser Interference Patterning

Applied Sciences
Four-beam Direct Laser Interference Patterning (DLIP) enables the fabrication of periodic surface micro- or nanostructures with various geometrical features.
Kehkashan Alam, Philipp Zeller, Andreas Otto, Roland Fürbacher   +3 more
doaj   +1 more source

Direct periodic patterning of GaN-based light-emitting diodes by three-beam interference laser ablation

, 2014
We report on the direct patterning of two-dimensional periodic structures in GaN-based light-emitting diodes (LEDs) through laser interference ablation for the fast and reliable fabrication of periodic micro-and nano-structures aimed at enhancing light ...
Kim, J (Kim, Jeomoh), Ryou, JH (Ryou, Jae-Hyun), Asadirad, M (Asadirad, Mojtaba), Guo, R (Guo, Rui), Detchprohm, T (Detchprohm, Theeradetch), Dupuis, RD (Dupuis, Russell D.), Yuan, DJ (Yuan, Dajun), Ji, MH (Ji, Mi-Hee), Liu, JP (刘建平), Das, S (Das, Suman), Kwon, MK (Kwon, Min-Ki)   +10 more
core  

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

Advanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano, Lorenzo Ravelli, Martina Nardi, Ruowen Tu, Elena Bellini, Valerio Isa, Carlo Filippeschi, Roberta Finazzi, Luca Ceseracciu, Niloofar Paknezhad, Vincenzo Scribano, Paolo Galli, Silvia Lavorano, Simone Montano, Barbara Mazzolai, Marco Contardi, Pietro Cataldi, Athanassia Athanassiou   +17 more
wiley   +1 more source

Development of a scanner-based direct laser interference patterning optical head: New surface structuring opportunities

, 2022
Paper 1009214, 7 S.Periodic surface structures with micrometer or submicrometer resolution produced on surfaces of different technological parts can be used to improve their mechanical, biological or optical characteristics.
Lasagni, Andrés-Fabián, Krupop, Benjamin, Kunze, Tim, Zwahr, Christoph, Alamri, Sabri, Rößler, Florian   +5 more
core   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

Facilitating the Study of the Texturing Effect on Hydrodynamic Lubrication

Lubricants, 2018
To facilitate fundamental study of the surface texturing effect on hydrodynamic lubrication, analytical and experimental tools are required. While there is an extensive amount of theoretical and analytical analyses in the literature, relevant ...
Liang Guo, Patrick Wong, Carsten Gachot
doaj   +1 more source

Wetting Properties of Aluminium Surface Structures Fabricated Using Direct Laser Interference Patterning with Picosecond and Femtosecond Pulses

, 2022
S.74-79In this work, we report about the fabrication of textured aluminium surfaces using Direct Laser Interference Patterning with picosecond (70 ps) and femtosecond (400 fs) laser pulses as well as their wetting properties.
Milles, S., Raciukaitis, G., Dahms, J., Voisiat, B., Indrisiunas, S., Lasagni, A.F.   +5 more
core   +1 more source