Bio-inspired water repellent surfaces produced by ultrafast laser structuring of silicon

Barberoglou, M.; Zorba, Vassilia; Stratakis, Emmanuel; Spanakis, Emmanuel; Tzanétakis, P.; Anastasiadis, Spiros H.; Fotakis, C.

doi:10.1016/j.apsusc.2008.07.130

Cited by 129 publications

(82 citation statements)

References 29 publications

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“…Since the wettability of surfaces depends on their topology and chemical nature [74][75][76][77][78], strategies combining both aspects have been developed to obtain superhydrophobic materials [75,[79][80][81][82][83]. As a natural example of a superhydrophobic surface, the lotus leaf has inspired Optical storage devices (OSDs) can also be achieved via 2PP.…”

Section: Superhydrophobic Polymeric Surfacesmentioning

confidence: 99%

“…In order to reproduce the lotus leaf's superhydrophobic effect on synthetic surfaces, a combination of chemical modification and patterning of the sample has been employed [86][87][88]. Several methods, from extruding of polymers [89] to femtosecond-laser microfabrication [74] have been proposed to design superhydrophobic surfaces [67,74,75,79,[81][82][83]88,90,91].…”

Section: Superhydrophobic Polymeric Surfacesmentioning

confidence: 99%

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Ultrafast Laser Pulses for Structuring Materials at Micro/Nano Scale: From Waveguides to Superhydrophobic Surfaces

Corrêa

Almeida

et al. 2017

Photonics

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Abstract:The current demand for fabricating optical and photonic devices displaying high performance, using low-cost and time-saving methods, prompts femtosecond (fs)-laser processing as a promising methodology. High and low repetition femtosecond lasers enable surface and/or bulk modification of distinct materials, which can be used for applications ranging from optical waveguides to superhydrophobic surfaces. Herein, some fundamental aspects of fs-laser processing of materials, as well as the basics of their most common experimental apparatuses, are introduced. A survey of results on polymer fs-laser processing, resulting in 3D waveguides, electroluminescent structures and active hybrid-microstructures for luminescence or biological microenvironments is presented. Similarly, results of fs-laser processing on glasses, gold and silicon to produce waveguides containing metallic nanoparticles, analytical chemical sensors and surface with modified features, respectively, are also described. The complexity of fs-laser micromachining involves precise control of material properties, pushing ultrafast laser processing as an advanced technique for micro/nano devices.

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Section: Superhydrophobic Polymeric Surfacesmentioning

confidence: 99%

Section: Superhydrophobic Polymeric Surfacesmentioning

confidence: 99%

Ultrafast Laser Pulses for Structuring Materials at Micro/Nano Scale: From Waveguides to Superhydrophobic Surfaces

Corrêa

Almeida

et al. 2017

Photonics

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“…Nesse caso podemos criar superfícies super hidrofóbicas (θ≥ 150º) para serem utilizadas como superfícies auto-limpantes, esqueletos biológicos, microfluídicos e outros dispositivos. [84][85][86][87] O processo é inspirado em vários exemplos da natureza, um deles o da folha de lótus, na qual texturas de superfície naturais resultam em uma excepcional superfície repelente de água.…”

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Glassy Materials and Light: Part 1

et al. 2016

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publicado na web em 05/02/2016 GLASSY MATERIALS AND LIGHT: PART 1. 2015 is the Year of Light, according to UNESCO. Chemistry has a close relationship with light and one of the materials that allows such synergy is glass. Depending on the chemical composition of the glass, it is possible to achieve technological applications for the whole range of wavelengths extending from the region of the microwave to gamma rays. This diversity of applications opens a large range of research where chemistry, as a central science, overlaps the fields of physics, engineering, medicine, etc., generating a huge amount of knowledge and technological products used for humanity. This review article aimed at discussing some families of glasses, illustrating some applications. Due to the extension of the theme, and all points raised, we thought it would be good to divide the article into two parts. In the first part we focus on the properties of heavy metal oxide glasses, fluoride glasses and chalcogenide glasses. In the second part we emphasize the properties of glassy thin films prepared by sol-gel methodology and some applications, of both glasses as the films in photonics, and more attention was given to the nonlinear properties and uses of photonic fibers.

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“…There are several other advantages as follows. A femtosecond laser can be used to process a variety of materials, including glasses, semiconductor materials, and polymers [14,15]. Complicated patterns can be generated for a micro-scale to nano-scale without using a mask [16].…”

Section: Introductionmentioning

confidence: 99%

Femtosecond Laser-Inscripted Direct Ultrafast Fabrication of a DNA Distributor Using Microfluidics

et al. 2017

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A femtosecond laser can be used for single or multiple writing processes to create sub 10-µm lines or holes directly without the use of masks. In this study, we characterized the depth and width of micro-channels created by femtosecond laser micro-scribing in polydimethylsiloxane (PDMS) under various energy doses (1%, 5%, 10%, 15% and 20%) and laser beam passes (5, 10 and 15). Based on a microfluidic simulation in a bio-application, a DNA distributor was designed and fabricated based on an energy dose of 5% and a laser beam pass of 5. The simulated depth and width of the micro-channels was 3.58 and 5.27 µm, respectively. The depth and width of the micro-channels were linearly proportional to the energy dose and the number of laser beam passes. In a DNA distribution experiment, a brighter fluorescent intensity for YOYO-1 Iodide with DNA was observed in the middle channels with longer DNA. In addition, the velocity was the lowest as estimated in the computational simulation. The polymer processability of the femtosecond laser and the bio-applicability of the DNA distributor were successfully confirmed. Therefore, a promising technique for the maskless fabrication of sub 10-µm bio-microfluidic channels was demonstrated.

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Bio-inspired water repellent surfaces produced by ultrafast laser structuring of silicon

Cited by 129 publications

References 29 publications

Ultrafast Laser Pulses for Structuring Materials at Micro/Nano Scale: From Waveguides to Superhydrophobic Surfaces

Ultrafast Laser Pulses for Structuring Materials at Micro/Nano Scale: From Waveguides to Superhydrophobic Surfaces

Glassy Materials and Light: Part 1

Femtosecond Laser-Inscripted Direct Ultrafast Fabrication of a DNA Distributor Using Microfluidics

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