Production of carbonized micro-patterns by photolithography and pyrolysis

Ginestra, Paola; Madou, Marc; Ceretti, Elisabetta

doi:10.1016/j.precisioneng.2018.08.019

Cited by 25 publications

(11 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nerve tissue engineering is focusing on neural cells implants, considering the limited recovery capacity from damage that distinguishes the central nervous system. The biological substitutes aiming at restoring or improving nerve tissue function compromised by neurodegenerative disorders are increasing over the past few years (Prabhakaran et al, 2009;Ginestra et al, 2017aGinestra et al, , 2019. Biocompatible scaffolds that mimic the biological environment of native Extra-Cellular Matrix (ECM) play an important role in supporting and regulating the differentiation of stem cells.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing of polycaprolactone - Graphene fibers for nerve tissue engineering

Ginestra

2019

Journal of the Mechanical Behavior of Biomedical Materials

View full text Add to dashboard Cite

Nanofibrous structures have morphological similarities to extracellular matrix and have been considered as candidate scaffolds in tissue engineering. Scaffolds made from electrospun fibers have potential in cell adhesion, proliferation and cell function. In this study, different percentages of graphene have been dispersed in a polycaprolactone-cyclopentanone solution to produce electrospun fibers. The microstructure and morphology of the fibers and the mechanical behavior of the electrospun systems were evaluated to analyze the influence of graphene content on the performances of the fibers. A significant dimensional difference between the fibers diameters of was obtained due to the graphene percentage. Accordingly, the mechanical properties of the fibrous systems are found to be influenced by the presence of the graphene. Rat stem cells were cultured on the fibrous scaffolds to evaluate the effect of the arrangement of the fibers on the morphology of the cells and differentiation into neurons. In particular, a higher population of dopaminergic neurons has been identified on the fibers with a higher percentage of graphene.

show abstract

Section: Introductionmentioning

confidence: 99%

Manufacturing of polycaprolactone - Graphene fibers for nerve tissue engineering

Ginestra

2019

Journal of the Mechanical Behavior of Biomedical Materials

View full text Add to dashboard Cite

show abstract

“…Photolithography is a popular technique for synthesizing and preparing bioinspired surfaces [ 44 ] using photosensitive materials called “photoresists” to form patterns on target plates. [ 45 ] After the negatives have been exposed to light, the photoresist hardens and becomes insoluble, while the area protected from light can be washed out (i.e., negative resist), and the bare metal can be etched to form a relief pattern on a substrate surface. The advantage of photolithography is that it can accurately control the shape and size of the patterns.…”

Section: Fabrication Techniquesmentioning

confidence: 99%

Small Structure, Large Effect: Functional Surfaces Inspired by Salvinia Leaves

et al. 2021

View full text Add to dashboard Cite

Nature‐inspired superhydrophobic surfaces have attracted significant attention because of their remarkable properties. In particular, recent findings about the aquatic plant Salvinia provide novel approaches for the application of superhydrophobic surfaces. The unique heterogeneous eggbeater structures endow Salvinia leaves with superhydrophobicity and strong adhesion, which ensures that the leaves show durable air‐retainability in underwater environments. However, the complex eggbeater structures present a difficult manufacturing challenge. Therefore, this review first introduces the air‐retention mechanism, which may benefit the design of Salvinia‐inspired structures. Moreover, advanced techniques including photolithography, direct laser lithography, chemical vapor deposition, electrodeposition, electrostatic flocking, 3D printing, chemical etching, and plasma etching recently have been developed for fabricating Salvinia‐inspired structures. This review focuses on the advantages, disadvantages, and application prospects of such techniques. In addition, the excellent air‐retainability of Salvinia structures has inspired many engineering applications, including drag reduction; water harvesting, evaporation, and repellence; oil/water separation; and thermal insulation. This review discusses the performance and challenges of artificial structures to such applications. Finally, methods of evaluating air‐retainability are discussed. It is expected that this review will not only satisfy scientific curiosity but also contribute to the design and application of Salvinia‐inspired functional surfaces.

show abstract

“…After the microchannels have been defined by the UV light, an inverse image of the mold is obtained using a polymer before binding to a glass substrate. The main advantage of this technique is that the chips are made with precise geometries within the channels and excellent surface smoothness is achieved [ 47 ]. The main disadvantages of this technique are that it requires a lot of time, use of toxic materials, and clean-room facilities [ 47 ].…”

Section: Fabrication Of Microfluidic Devices For Production Of Ionmentioning

confidence: 99%

“…The main advantage of this technique is that the chips are made with precise geometries within the channels and excellent surface smoothness is achieved [ 47 ]. The main disadvantages of this technique are that it requires a lot of time, use of toxic materials, and clean-room facilities [ 47 ]. As a result of diffraction, the lower resolution limit of this technology is 250 nm [ 48 ].…”

Section: Fabrication Of Microfluidic Devices For Production Of Ionmentioning

confidence: 99%

Microfluidic Synthesis of Iron Oxide Nanoparticles

et al. 2020

View full text Add to dashboard Cite

Research efforts into the production and application of iron oxide nanoparticles (IONPs) in recent decades have shown IONPs to be promising for a range of biomedical applications. Many synthesis techniques have been developed to produce high-quality IONPs that are safe for in vivo environments while also being able to perform useful biological functions. Among them, coprecipitation is the most commonly used method but has several limitations such as polydisperse IONPs, long synthesis times, and batch-to-batch variations. Recent efforts at addressing these limitations have led to the development of microfluidic devices that can make IONPs of much-improved quality. Here, we review recent advances in the development of microfluidic devices for the synthesis of IONPs by coprecipitation. We discuss the main architectures used in microfluidic device design and highlight the most prominent manufacturing methods and materials used to construct these microfluidic devices. Finally, we discuss the benefits that microfluidics can offer to the coprecipitation synthesis process including the ability to better control various synthesis parameters and produce IONPs with high production rates.

show abstract

Production of carbonized micro-patterns by photolithography and pyrolysis

Cited by 25 publications

References 45 publications

Manufacturing of polycaprolactone - Graphene fibers for nerve tissue engineering

Manufacturing of polycaprolactone - Graphene fibers for nerve tissue engineering

Small Structure, Large Effect: Functional Surfaces Inspired by Salvinia Leaves

Microfluidic Synthesis of Iron Oxide Nanoparticles

Contact Info

Product

Resources

About