Comparison of in Situ and ex Situ Methods for Synthesis of  Two-Photon Polymerization Polymer Nanocomposites

Guo, Qingchuan; Ghadiri, Reza; Weigel, Thomas; Aumann, A.; Gurevich, Evgeny L.; Esen, Cemal; Medenbach, Olaf; Cheng, Wei; Chichkov, Boris N.; Ostendorf, Andreas

doi:10.3390/polym6072037

Cited by 142 publications

(64 citation statements)

References 23 publications

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“…The new generation materials, including hybrid materials, can be produced by in-situ ( Fig.1) and ex-situ (Fig.2) methods. [2] In accordance with the recommendation of the International Union of Pure and Applied Chemistry -IUPAC. We define the materials as follows [ [1].…”

Section: Introductionmentioning

confidence: 94%

Implementation of Nanoparticles in Materials Applied in Foundry Engineering

Kmita

Roczniak

2017

Archives of Foundry Engineering

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The ceaseless progress of nanotechnology, observed in the last years, causes that nanomaterials are more and more often applied in several fields of industry, technique and medicine. E.g. silver nanoparticles are used in biomedicine for disinfection and polymer nanoparticles allow insulin transportation in pharmacology. New generation materials containing nanoparticles are also used in the chemical industry (their participation in the commercial market equals app. 53 %). Nanomaterials are used in electronics, among others for semiconductors production (e.g. for producing nanoink Ag, which conducts electric current). Nanomaterials, due to their special properties, are also used in the foundry industry in metallurgy (e.g. metal alloys with nanocrystalline precipitates), as well as in investment casting and in moulding and core sand technologies. Nanoparticles and containing them composites are applied in several technologies including foundry practice, automotive industry, medicine, dentistry etc. it is expected that their role and market share will be successively growing.

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Section: Introductionmentioning

confidence: 94%

Implementation of Nanoparticles in Materials Applied in Foundry Engineering

Kmita

Roczniak

2017

Archives of Foundry Engineering

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“…The high resolution and high degree of design flexibility conferred by 2PP means that it can be applied to different microfluidic applications in which liquid fluids need to be transported, mixed, or controlled by means of valves or switches 2 . Furthermore, by using photosensitive resins that contain the appropriate nanomaterials, different functions can be incorporated into the 2PP-fabricated microstructure 3,4 . For example, one could potentially make the microstructure electrically conductive, or have a refractive index that varies as a function of position, or make the microstructure chemically functionalized.…”

Section: Introductionmentioning

confidence: 99%

Optical screw-wrench for microassembly

et al. 2017

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For future micro-and nanotechnologies, the manufacturing of miniaturized, functionalized, and integrated devices is indispensable. In this paper, an assembly technique based on a bottom-up strategy that enables the manufacturing of complex microsystems using only optical methods is presented. A screw connection is transferred to the micrometer range and used to assemble screwand nut-shaped microcomponents. Micro-stereolithography is performed by means of two-photon polymerization, and microstructures are fabricated and subsequently trapped, moved, and screwed together using optical forces in a holographic optical tweezer set-up. The design and construction of interlocking microcomponents and the verification of a stable and releasable joint form the main focus of this paper. The assembly technique is also applied to a microfluidic system to enable the pumping or intermixing of fluids on a microfluidic chip. This strategy not only enables the assembly of microcomponents but also the combination of different materials and features to form complex hybrid microsystems.

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“…Material limitations due to the need of low viscosity resins and relatively high cost of the equipment (up to half a million dollars) are the main drawbacks of the TPP technique. Guo et al [22] studied the use of TPP technique for the fabrication of periodic 3D scaffold using poly(aryl ether sulfone) filled with titanium oxide. The nanocomposites showed a sufficiently high optical transparency, which allowed the successful fabrication of the scaffold.…”

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confidence: 99%

Printing Polymer Nanocomposites and Composites in Three Dimensions

Farahani

Dubé

2017

Adv Eng Mater

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Recent advances in materials science and three-dimensional (3D) printing hold great promises to conceive new classes of multifunctional materials and components for functional devices and products. Various functionalities (e.g., mechanical, electrical, and thermal properties, magnetism) can be offered by the nano-and micro-reinforcements to the non-functional pure printing materials for the realization of advanced materials and innovative systems. In addition, the ability to print 3D structures in a layer-by-layer manner enables manufacturing of highly-customized complex features and allows an efficient control over the properties of fabricated structures. Here, the authors present a brief overview mainly over the latest progresses in 3D printing of multifunctional polymer nanocomposites and microfiber-reinforced composites including the benefits, limitations, and potential applications. Only those 3D printing techniques that are compatible with polymer nanocomposites and composites, that is, materials that have already been used as printing materials, are introduced. The very hot topic of 3D printing of thermoplastic composites featuring continuous microfibers is also briefly introduced.

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Comparison of in Situ and ex Situ Methods for Synthesis of Two-Photon Polymerization Polymer Nanocomposites

Cited by 142 publications

References 23 publications

Implementation of Nanoparticles in Materials Applied in Foundry Engineering

Implementation of Nanoparticles in Materials Applied in Foundry Engineering

Optical screw-wrench for microassembly

Printing Polymer Nanocomposites and Composites in Three Dimensions

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