Laser ablation combined with Nanoimprint Lithography technology as new surface engineering approach to produce novel polymer-based heteronucleants for recalcitrant protein crystallization

Fernández-Rodríguez, Carmen; Paredes, Jesús; Etxarri, Jon; Tellechea, Edurne; Martínez‐Chantar, María Luz; Martínez-Cruz, L.A.; Quintana, Iban

doi:10.1016/j.apsusc.2022.155029

Cited by 5 publications

(2 citation statements)

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“…Based on the clinical requirements and inherent properties of biomaterial, several technologies such as soft lithography [ 175 ], electrospinning [ 176 ], 3D-printing [ 177 ] and nanoimprinting [ 178 ] have been used to produce specific micro/nanoscale topographies on biomaterial surfaces. Nanoimprinted patterned PVA hydrogels with different isotropic and anisotropic topographies could significantly promote vascular endothelial cells attachment on it both in vitro and in vivo compared with non-patterned PVA hydrogel [ 179 ].…”

Section: Property and Function Design Of Biomimetic Biomaterials For ...mentioning

confidence: 99%

Advances and applications of biomimetic biomaterials for endogenous skin regeneration

Wang,

Hong,

et al. 2024

Bioactive Materials

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Section: Property and Function Design Of Biomimetic Biomaterials For ...mentioning

confidence: 99%

Advances and applications of biomimetic biomaterials for endogenous skin regeneration

Wang,

Hong,

et al. 2024

Bioactive Materials

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“…Controlled nano-or micro-patterning of polymer surfaces provided by this technique is promising for various biological applications [7], the manufacture of photovoltaics, microoptics, lab-on-chip devices [8 ], and the development of functional materials [9].…”

Section: Introductionmentioning

confidence: 99%

Nanopatterning of the Dielectric Surface by a Pair of Femtosecond Laser Pulses of Different Color Through a Monolayer of Microspheres

Afanasiev¹,

Ilyakov²,

Shishkin³

et al. 2023

Preprint

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The paper considers the nanostructuring of the surface of dielectrics under the effect of two successive femtosecond laser pulses, one of the fundamental frequency and the other of the second harmonic of a Ti:sapphire laser, through a layer of polystyrene microspheres 1 μm in diameter, which act as microlenses. Polymers with strong (PMMA) and weak (TOPAS) absorption at the frequency of the third harmonic of a Ti:sapphire laser were used as targets. Laser irradiation led to the removal of microspheres and the formation of ablation craters with characteristic dimensions of about 100 nm. Depending on the variable delay time between pulses, the resulting structures differed in their geometric parameters and shape. Based on statistical processing of the depths of the obtained craters, the optimal delay times for the most effective structuring of the surfaces of these polymers were found.

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Development platform for UV-NIL processes using polymer masters produced by laser ablation and photolithography

Zajadacz,

Lorenz,

Ehrhardt

et al. 2024

Nanotechnology and Precision Engineering

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Ultraviolet nanoimprint lithography (UV-NIL) is a versatile and cost-effective technique for the fabrication of micro- and nanostructures by copying master patterns in a planar or a roll-to-roll process through curing of a liquid UV-sensitive precursor. For applications with a high pattern complexity, new UV-NIL process chains must be specified. Master fabrication is a challenging part of the development and often cannot be accomplished using a single master fabrication technique. Therefore, an approach combining different patterning fabrication techniques is developed here for polymer masters using laser direct writing and photolithography. The polymer masters produced in this way are molded into inverse silicone stamps that are used for roll-to-roll replication into an acrylate formulation. To fit the required roller size for large-area UV-NIL, several submasters with micrometer-sized dot and line gratings and prism arrays, which have been patterned by these different techniques, are assembled to final size of ∼200 × 600 mm2 with an absolute precision of better than 50 µm. The size of the submasters allows the use of standard laboratory equipment for patterning and direct writing, thus enabling the fabrication of micro- and even nanostructures when electron-beam writing is utilized. In this way, the effort, time, and costs for the fabrication of masters for UV-NIL processes are reduced, enabling further development for particular structures and applications. Using this approach, patterns fabricated with different laboratory tools are finally replicated by UV-NIL in an acrylate formulation, demonstrating the high quality of the whole process chain.

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Laser ablation combined with Nanoimprint Lithography technology as new surface engineering approach to produce novel polymer-based heteronucleants for recalcitrant protein crystallization

Cited by 5 publications

References 50 publications

Advances and applications of biomimetic biomaterials for endogenous skin regeneration

Advances and applications of biomimetic biomaterials for endogenous skin regeneration

Nanopatterning of the Dielectric Surface by a Pair of Femtosecond Laser Pulses of Different Color Through a Monolayer of Microspheres

Development platform for UV-NIL processes using polymer masters produced by laser ablation and photolithography

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