Bombyx mori silk protein films microprocessing with a nanosecond ultraviolet laser and a femtosecond laser workstation: theory and experiments

Lazare, Sylvain; Sionkowska, Alina; Zaborowicz, Maciej; Płanecka, Anna; Lopez, John; Dijoux, Mathieu; Loumena, C.; Hernandez, M.-C.

doi:10.1007/s00339-011-6639-y

Cited by 19 publications

(20 citation statements)

References 73 publications

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“…These observations are similar to those reported in previous studies on single-pulse, ns laser irradiation at 248 and 266 nm of thin films of biopolymers and polymers from renewable resources [4][5][6][8][9][10]. A major difference with such studies concerns the lack of swelling in the irradiated area even at near-threshold fluences.…”

Section: Resultssupporting

confidence: 89%

“…turn, capable of triggering a cavitation and bubbling phenomenon leading to formation of a foam layer. This model proved suitable to account for the foaming characteristics induced by different laser irradiation wavelengths, from UV to IR, on a variety of natural and synthetic polymers from renewable resources [4][5][6][8][9][10]. As the matrices of such polymers were prepared by polymer solution casting and further solvent evaporation, without the use of crosslinking agents, they typically had a random association at the molecular level.…”

Section: Introductionmentioning

confidence: 99%

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Surface morphological modification of crosslinked hydrophilic co-polymers by nanosecond pulsed laser irradiation

Primo

Igarzabal

Pino

et al. 2016

Applied Surface Science

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This work reports an investigation of the surface modifications induced by irradiation with nanosecond laser pulses of ultraviolet and visible wavelengths on crosslinked hydrophilic co-polymeric materials, which have been functionalized with 1-vinylimidazole as a co-monomer. A comparison is made between hydrogels differing in the base co-monomer (N,N-dimethylaminoethyl methacrylate and N-[3-(dimethylamino)propyl] methacrylamide) and in hydration state (both swollen and dried states). Formation of craters is the dominant morphological change observed by ablation in the visible at 532 nm, whereas additional, less aggressive surface modifications, chiefly microfoams and roughness, are developed in the ultraviolet at 266 nm. At both irradiation wavelengths, threshold values of the incident laser fluence for the observation of the various surface modifications are determined under single-pulse laser irradiation conditions. It is shown that multiple-pulse irradiation at 266 nm with a limited number of laser shots can be used alternatively for generating a regular microfoam layer at the surface of dried hydrogels based on N,N-dimethylaminoethyl methacrylate. The observations are rationalized on the basis of currently accepted mechanisms for laser-induced polymer surface modification, with a significant contribution of the laser foaming mechanism. Prospective applications of the laser-foamed hydrogel matrices in biomolecule immobilization are suggested.

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Surface morphological modification of crosslinked hydrophilic co-polymers by nanosecond pulsed laser irradiation

Primo

Igarzabal

Pino

et al. 2016

Applied Surface Science

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“…10, 054101-1 large surface area, whereas ultra-short femtosecond laser pulses at near-IR wavelength enabled the high precision laser cutting of silk. 12 Through the use of photo-initiators, silk can be crystallized by direct fs-laser writing. 13 The application of ultra-short laser pulses for control of the crystallinity of silk without photoinitiator was the aim of this study.…”

Section: Introductionmentioning

confidence: 99%

Silk patterns made by direct femtosecond laser writing

et al. 2016

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Silk patterns in a film of amorphous water-soluble fibroin are created by tailored exposure to femtosecond-laser pulses (1030 nm/230 fs) without the use of photoinitiators. This shows that amorphous silk can be used as a negative tone photoresist. It is also shown that water insoluble crystalline silk films can be precisely ablated from a glass substrate achieving the patterns of crystalline silk gratings on a glass substrate. Bio-compatible/degradable silk can be laser structured to achieve conformational transformations as demonstrated by infrared spectroscopy. Published by AIP Publishing. [http://dx

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“…Using 3D photofabrication, fibrous biopolymer films can be molded into scaffolds compatible for utilization in the tissue engineering field. Processing of fibrous biopolymer films, such as chitosan, silk, gelatin, and collagen has been previously achieved with laser based techniques. The recombinantly produced shaft repetitive proteins described above can self‐assemble into fibers, films, etc.…”

Section: Photostructuring Of Fibers From the Purified Proteins That Smentioning

confidence: 99%

Self‐Assembling Amyloid Sequences as Scaffolds for Material Design: A Case Study of Building Blocks Inspired From the Adenovirus Fiber Protein

Kokotidou

Tamamis

Mitraki

2019

Macromolecular Symposia

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In the last two decades the study of the properties of biological self‐organization has created a separate area of research, ranging from biomedicine and biotechnology to materials science and nanotechnology. In particular, the design of self‐assembling protein and peptide building blocks is often achieved by drawing inspiration from natural fibrous proteins such as collagen, elastin, silk, and spider silks that are built up from repetitive sequences. Self‐assembling proteins and peptides are water soluble and biocompatible nanostructures formed spontaneously under mild conditions through non‐covalent interactions. They form supramolecular structures such as ribbons, nanotubes, and fibers. The wide range of chemical functionalities found in peptides (i.e., 20 amino acids) enables the design and engineering of specific interactions with target materials for potential technological applications. Moreover, with the aid of computational methods, tailor made modifications can be inserted for the «on‐demand» design of functional amyloid materials binding to ions or compounds. Technologically, the self‐organized structures can be used as templates for the growth of inorganic materials, such as metallic nanoparticles (silver, gold, and platinum), silica, calcium phosphates etc. Self‐assembling peptides may also create hydrogels and entangled fibrous networks that can be used as scaffolds for attachment, growth and proliferation of living cells, allowing tissue repair and engineering. In this short review we summarize the progress made in the field with emphasis on our progress on how to translate fundamental structural knowledge from the adenovirus fiber protein into self‐assembling nanomaterials targeted for novel applications.

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Bombyx mori silk protein films microprocessing with a nanosecond ultraviolet laser and a femtosecond laser workstation: theory and experiments

Cited by 19 publications

References 73 publications

Surface morphological modification of crosslinked hydrophilic co-polymers by nanosecond pulsed laser irradiation

Surface morphological modification of crosslinked hydrophilic co-polymers by nanosecond pulsed laser irradiation

Silk patterns made by direct femtosecond laser writing

Self‐Assembling Amyloid Sequences as Scaffolds for Material Design: A Case Study of Building Blocks Inspired From the Adenovirus Fiber Protein

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