Polystyrene Pocket Lithography: Sculpting Plastic with Light

Samal, Pinak; Sámal, J; Gubbins, Eva; Vroemen, Pascal; Blitterswijk, Clemens van; Truckenmüller, Roman; Giselbrecht, Stefan

doi:10.1002/adma.202200687

Cited by 6 publications

(5 citation statements)

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“…7 a and b). These thin films enabled the use of Substrate Modification And Replication by Thermoforming (SMART) technology, which has been previously described [ 3 , 13 , [39] , [40] , [41] ]. The method utilizes microthermoforming [ 42 , 43 ] in combination with pre-processed polymer films to generate patterned, curvilinear surfaces.…”

Section: Resultsmentioning

confidence: 99%

“…In this manuscript, we describe a novel process to fabricate microstructures in PMMA plates, without spin-coating and baking, using inexpensive, non-lithographic/-collimated DUV light sources and quartz-chromium (QC) masks. We have previously used DUV lithography for micropatterning of polystyrene for cell culture [ 13 ], and here we adapt the process to PMMA, which is another important biocompatible polymer. Although another variant of DUV lithography process using PMMA has been reported, it relied on the use of temporal gold thin film conformal masks created on top of the PMMA substrates, which additionally needed (vacuum) sputtering, gold etching for patterning the masking layer before the actual DUV lithography, and again removing the masking layer after the lithography process [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

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Direct deep UV lithography to micropattern PMMA for stem cell culture

Samal,

Kumar Samal,

Rho

et al. 2023

Materials Today Bio

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Direct deep UV lithography to micropattern PMMA for stem cell culture

Samal,

Kumar Samal,

Rho

et al. 2023

Materials Today Bio

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“…[46] This alignment is essential for maintaining normal vascular function [46] and surface topographies have been extensively studied to induce such orientation. [47][48][49] Electrospun fibers, in particular, have emerged as one of the most popular scaffolds for investigating cell alignment due to their tunable fiber diameter and orientation. [3,50,51] In our study, we aimed to investigate the capability of our replicated fiber imprints to influence cell orientation by culturing HUVECs on our random fiber imprint b and aligned fiber imprint d (Figure 5A).…”

Section: Steering Cell Orientation By Fiber Imprintsmentioning

confidence: 99%

The Synergy of Electrospinning and Imprinting for Faithful Replication of Fiber Structures

Şahin

Vrij

Grant

et al. 2023

Adv Materials Technologies

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Electrospinning is a powerful method to fabricate structures resembling the fibrous texture of the native extracellular matrix. However, the random fiber deposition of the process hinders a faithful reproduction of the fiber mesh morphology on multiple samples, which raises difficulties in experimental designs to systematically test and assess cell response in vitro. A multi‐replication process to precisely reproduce the fiber morphology on different cell culture substrates is developed. The process involves a decoupling of the fiber structure, material, and porosity by combining the key advantages of electrospinning and imprinting. With this, fiber patterns having a diameter between 0.4 and 2.8 µm are replicated on polycarbonate, polystyrene, poly(methyl methacrylate), and cyclic olefin copolymer films. Identical fiber morphology is, then, obtained on porous films having a pore diameter between 2 and 12 µm. Having full control over these parameters allows the multireplication process to engineer well‐characterized cell microenvironments, which can potentially be used to further investigate complex cell–material interactions.

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“…In addition to the property advantages of SPS materials, they also exhibit drawbacks such as brittleness and temperature-and/or solvent-induced crystal form interconversion. Copolymerization of styrene with other monomers may be a solution to overcoming some of the physical property drawbacks of SPS [35,36].…”

Section: Properties and Application Of Syndiotactic Polystyrene (Sps)...mentioning

confidence: 99%

High-Efficiency Mono-Cyclopentadienyl Titanium and Rare-Earth Metal Catalysts for the Production of Syndiotactic Polystyrene

Wen,

Hu,

Kang

et al. 2023

Molecules

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Syndiotactic polystyrene (SPS) refers to a type of thermoplastic material with phenyl substituents that are alternately chirally attached on both sides of an aliphatic macromolecular main chain. Owing to its excellent physical and mechanical properties, as well as its chemical stability, high transparency, and electrical insulation characteristics, SPS is used in a wide variety of technical fields. SPS is commonly produced via the stereoselective transition metal-catalyzed coordination polymerization method mediated by stereospecific catalysts, which consists of anionic mono-cyclopentadienyl derivative η5-coordinated single active metal centers (referred to as “mono-Cp’-M”), with active center metals involving Group 4 transition metals (with an emphasis on titanium) and rare-earth (RE) metals of the periodic table. In this context, the use of mono-cyclopentadienyl titanocene (mono-Cp’Ti) catalysts and mono-cyclopentadienyl rare-earth metal (mono-Cp’RE) metallocene catalysts for the syndiospecific polymerization of styrene is discussed. The effects of the mono-cyclopentadienyl ligand structure, cationic active metal types, and cocatalysts on the activity and syndiospecificity of mono-Cp’ metallocene catalysts are briefly surveyed.

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Polystyrene Pocket Lithography: Sculpting Plastic with Light

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.202200687.

Cited by 6 publications

References 65 publications

Direct deep UV lithography to micropattern PMMA for stem cell culture

Direct deep UV lithography to micropattern PMMA for stem cell culture

The Synergy of Electrospinning and Imprinting for Faithful Replication of Fiber Structures

High-Efficiency Mono-Cyclopentadienyl Titanium and Rare-Earth Metal Catalysts for the Production of Syndiotactic Polystyrene

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