Laser-based techniques for living cell pattern formation

Hopp, B.; Smausz, Tomi; Papdi, Bence; Bor, Zsolt; Szabó, Angela E.; Kolozsvári, Lajos; Fotakis, C.; Nógrádi, Antal

doi:10.1007/s00339-008-4648-2

Cited by 16 publications

(5 citation statements)

References 17 publications

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“…Also other types of micro-and nano-pattern surfaces produced by direct or indirect laser-based methods are suitable to control the adherence and growth of cells on a patterned surface. These effects are either due to the changed topography alone [380] or by a combination of topographical and chemical stimuli [353,361].…”

Section: Laser Fabrication Of Biomimetic Surfaces On Soft Materials Amentioning

confidence: 99%

Laser engineering of biomimetic surfaces

Stratakis

Bonse

Heitz

et al. 2020

Materials Science and Engineering: R: Reports

219

143

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The exciting properties of micro-and nano-patterned surfaces found in natural species hide a virtually endless potential of technological ideas, opening new opportunities for innovation and exploitation in materials science and engineering. Due to the diversity of biomimetic surface functionalities, inspirations from natural surfaces are interesting for a broad range of applications in engineering, including phenomena of adhesion, friction, wear, lubrication, wetting phenomena, self-cleaning, antifouling, antibacterial phenomena, thermoregulation and optics. Lasers are increasingly proving to be promising tools for the precise and controlled structuring of materials at micro-and nano-scales. When ultrashort-pulsed lasers are used, the optimal interplay between laser and material parameters enables structuring down to the nanometer scale. Besides this, a unique aspect of laser processing technology is the possibility for material modifications at multiple (hierarchical) length scales, leading to the complex biomimetic micro-and nano-scale patterns, while adding a new dimension to structure optimization. This article reviews the current state of the art of laser processing methodologies, which are being used for the fabrication of bioinspired artificial surfaces to realize extraordinary wetting, optical, mechanical, and biological-active properties for numerous applications. The innovative aspect of laser functionalized biomimetic surfaces for a wide variety of current and future applications is particularly demonstrated and discussed. The article concludes with illustrating the wealth of arising possibilities and the number of new laser micro/nano fabrication approaches for obtaining complex high-resolution features, which prescribe a future where control of structures and subsequent functionalities are beyond our current imagination.

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Section: Laser Fabrication Of Biomimetic Surfaces On Soft Materials Amentioning

confidence: 99%

Laser engineering of biomimetic surfaces

Stratakis

Bonse

Heitz

et al. 2020

Materials Science and Engineering: R: Reports

219

143

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“…Various commercial and noncommercial PI materials were proven as non-toxic by a multitude of in vitro, direct, or indirect, cytotoxicity assays. Most of them specifically declares to comply with the ISO guidelines, and investigate the viability, proliferation, degeneration, and lysis of different common cell types:L929 mouse fibroblast cells (Kapton, PI2611, Durimide 7020, Durimide 7510, PI2525, 6FDA-6FAP, EPICOLN-PPD) [27,41,44,48,51,52],3T3 mouse fibroblasts cells (Probimide 7520) [49],OP9 mouse stromal cells (Neopulim) [19],rat primary Schawnn cells (Kapton, PI2611, Durimide 7020) [27],rat astroglial cells (unknown PI trade name) [70],bovine endothelial cells (unknown PI trade name) [70],BHK-21 baby hamster kidney fibroblasts (PI2525, PI2771) [28],…”

Section: Biocompatibility Screening Of Polyimides By In Vitro Methodsmentioning

confidence: 99%

“…or more specific cell lines:human retinal pigment cells (PI2525) [47],AGSE human gastric adenocarcinoma cells (unknown PI trade name) [70],human mesenchymal stem cells (Kapton) [20],HeLa, human epithelial cells (6FDA-6FAP) [54],SV-HCEC human endothelial cells (Kapton, PI2610, HD 3007) [30],human dermal fibroblasts (SPAB-xxDA) [55]. …”

Section: Biocompatibility Screening Of Polyimides By In Vitro Methodsmentioning

confidence: 99%

“…The low cytotoxic outcome of these tests and the well-established PIs’ surface treatment methods were further combined to attain an interesting controlled positioning of living cells along within a given pattern [70]. A KrF laser-based technique was employed to garnish the surface of a commercial psPI with an extra carbon layer and to manipulate its interaction with various cell lines (Figure 11).…”

Section: Biocompatibility Screening Of Polyimides By In Vitro Methodsmentioning

confidence: 99%

“…Optical micrographs of two cell lines on the surface of a polyimide sample with carbon patterns: ( a ) carbon layer pattern; ( b ) rat astroglial cells; ( c ) bovine endothelial cells. Reproduced from [70], with permission from © 2008 Springer Nature.…”

Section: Figures Scheme and Tablesmentioning

confidence: 99%

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Biocompatibility of Polyimides: A Mini-Review

Constantin

Aflori

Damian³

et al. 2019

Materials

134

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Polyimides (PIs) represent a benchmark for high-performance polymers on the basis of a remarkable collection of valuable traits and accessible production pathways and therefore have incited serious attention from the ever-demanding medical field. Their characteristics make them suitable for service in hostile environments and purification or sterilization by robust methods, as requested by most biomedical applications. Even if PIs are generally regarded as “biocompatible”, proper analysis and understanding of their biocompatibility and safe use in biological systems deeply needed. This mini-review is designed to encompass some of the most robust available research on the biocompatibility of various commercial or noncommercial PIs and to comprehend their potential in the biomedical area. Therefore, it considers (i) the newest concepts in the field, (ii) the chemical, (iii) physical, or (iv) manufacturing elements of PIs that could affect the subsequent biocompatibility, and, last but not least, (v) in vitro and in vivo biocompatibility assessment and (vi) reachable clinical trials involving defined polyimide structures. The main conclusion is that various PIs have the capacity to accommodate in vivo conditions in which they are able to function for a long time and can be judiciously certified as biocompatible.

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