Development of peptide-based patterns by laser transfer

Dinca, Valentina; Kasotakis, Emmanouil; Catherine, Julien; Mourka, Areti; Mitraki, Anna; Popescu, A.; Dinescu, M.; Farsari, Maria; Fotakis, C.

doi:10.1016/j.apsusc.2007.08.042

Cited by 38 publications

(13 citation statements)

References 32 publications

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“…1c, such dynamic release layer (DRL) systems serve as energy-absorbing sacrificial layers that decompose upon laser irradiation and provide the thrust for propelling the top layer onto the receiver [17]. The use of thin intermediate films of metals (e.g., Ag, Au, Ti) or metal oxides (e.g., TiO 2 ) has been reported as absorbing layers for UV laser-based forward transfer applications of biomolecules [18][19][20][21] and cells [12,22], in the literature referred to as absorbing film assisted (AFA) LIFT [23][24][25] and Biological Laser Printing (BioLP TM ) [12,26]. Various polymeric composite materials (usually a binder matrix doped with dispersed absorber dyes) have been applied as DRL systems mostly in conjunction with powerful IR lasers, e.g., for highresolution full-color printing [27][28][29] and the microdeposition of electronic materials [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Aryltriazene photopolymer thin films as sacrificial release layers for laser-assisted forward transfer systems: study of photoablative decomposition and transfer behavior

et al. 2008

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Thin films of a tailor-made photodecomposible aryltriazene polymer were applied in a modified laserinduced forward transfer (LIFT) process as sacrificial release layers. The photopolymer film acts as an intermediate energy-absorbing dynamic release layer (DRL) that decomposes efficiently into small volatile fragments upon UV laser irradiation. A fast-expanding pressure jet is generated which is used to propel an overlying transfer material from the source target onto a receiver. This DRL-assisted laser direct-write process allows the precise deposition of intact material pixels with micrometer resolution and by single laser pulses. Triazene-based photopolymer DRL donor systems were studied to derive optimum conditions for film thickness and laser fluences necessary for a defined transfer process at the emission wavelength of a XeCl excimer laser (308 nm). Photoablation, surface detachment, delamination and transfer behavior of aryltriazene polymer films with a thickness from 25 nm to ∼400 nm were investigated in order to improve the process control parameters for the fabrication of functional thin-film devices of microdeposited heat-and UV-sensitive materials.

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Section: Introductionmentioning

confidence: 99%

Aryltriazene photopolymer thin films as sacrificial release layers for laser-assisted forward transfer systems: study of photoablative decomposition and transfer behavior

et al. 2008

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“…One of the main and most critical issues is the generation of high density arrays which maintain the biological function of the peptides. By combining peptide self-assembling characteristics and chemistry with LIFT, new designs in the assembly of more complex topologies using fibers as building blocks, and the decoration of the assembled materials with functional moieties can be produced [50]. Besides that LIFT was used to generate the high density photosensitive biotin arrays on ORMOCER s -coated surfaces and then the peptide microarrays (Fig.…”

Section: Article In Pressmentioning

confidence: 99%

“…At the same time the transfer of photobiotin on biocompatible materials was performed with a UV KrF, 500-fs laser [50]. Photobiotin is a photoactive derivative of biotin.…”

Section: Article In Pressmentioning

confidence: 99%

Laser-based micro/nanoengineering for biological applications

Stratakis

Ranella

Farsari

et al. 2009

Progress in Quantum Electronics

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“…Laser-induced forward transfer (commonly abbreviated to LIFT) is a direct-write technique that allows the selective transfer of many materials on a micrometer scale [1][2][3][4][5], including liquids [6] and living cells [7,8]. In the LIFT process, a thin film serves as a donor material that is to be transferred, which is referred to as the donor layer, see Fig.…”

Section: Introductionmentioning

confidence: 99%

Solid-phase laser-induced forward transfer of variable shapes using a liquid-crystal spatial light modulator

et al. 2015

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Laser-induced forward transfer is a promising method for 3D printing of various materials, including metals. The ejection mechanism is complex and depends strongly on the experimental parameters, such as laser fluence and donor layer thickness. However, the process can be categorized by the physical condition of the ejected material, i.e., the donor layer is transferred in liquid phase or the material is transferred as a 'pellet' in solid phase. Currently, solid-phase transfer faces several problems. Large shearing forces, occurring at the pellet perimeter during transfer, limit the similarity between the desired pellet shape and the deposited pellet shape. Furthermore, the deposited pellet may be surrounded by debris particles formed by undesired transferred donor material. This work introduces a novel approach for laser-induced forward transfer of variable shaped solid-phase pellets. A liquidcrystal spatial light modulator (SLM) is used to apply grayscale intensity modulation to an incident laser beam to shape the intensity profile. Optimized beams consist of a high fluence perimeter around an interior characterized by a lower fluence level. These beams are used successfully to transfer solid-phase pellets out of a 100-nm Au donor layer using a single laser pulse. The flexibility of the SLM allows a variable desired pellet shape. The shapes of the resulting deposited pellets show a high degree of similarity to the desired shapes. Debris-free deposited pellets are achieved by pre-machining the donor layer, prior to the transfer, using a double-pulse process.

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Development of peptide-based patterns by laser transfer

Cited by 38 publications

References 32 publications

Aryltriazene photopolymer thin films as sacrificial release layers for laser-assisted forward transfer systems: study of photoablative decomposition and transfer behavior

Aryltriazene photopolymer thin films as sacrificial release layers for laser-assisted forward transfer systems: study of photoablative decomposition and transfer behavior

Laser-based micro/nanoengineering for biological applications

Solid-phase laser-induced forward transfer of variable shapes using a liquid-crystal spatial light modulator

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