Preparation of functional DNA microarrays through laser-induced forward transfer

Serra, P.; Colina, M.; Fernández-Pradas, J.M.; Sevilla, Lídia; Morenza, J.L.

doi:10.1063/1.1787614

Cited by 166 publications

(98 citation statements)

References 11 publications

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“…8,[13][14][15] The feasibility of the technique for depositing these materials has been proved through the fabrication of diverse functional devices such as microbatteries, 11 solar cells, 16 organic light-emitting diodes, 17 or biosensors. 18,19 Such interesting features prompted several studies on the transfer process which takes place during the LIFT of liquids. These studies 9,10,14,15,20 were mainly focused on the analysis of the effects that different technological parameters have on the morphology of the transferred material.…”

Section: Introductionmentioning

confidence: 99%

Time-resolved imaging of the laser forward transfer of liquids

Duocastella¹,

Fernández-Pradas²,

Morenza³

et al. 2009

Journal of Applied Physics

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136

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Time-resolved imaging is carried out to study the dynamics of the laser-induced forward transfer of an aqueous solution at different laser fluences. The transfer mechanisms are elucidated, and directly correlated with the material deposited at the analyzed irradiation conditions. It is found that there exists a fluence range in which regular and well-defined droplets are deposited. In this case, laser pulse energy absorption results in the formation of a plasma, which expansion originates a cavitation bubble in the liquid. After the further expansion and collapse of the bubble, a long and uniform jet is developed, which advances at a constant velocity until it reaches the receptor substrate. On the other hand, for lower fluences no material is deposited. In this case, although a jet can be also generated, it recoils before reaching the substrate. For higher fluences, splashing is observed on the receptor substrate due to the bursting of the cavitation bubble. Finally, a discussion of the possible mechanisms which lead to such singular dynamics is also provided.

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Section: Introductionmentioning

confidence: 99%

Time-resolved imaging of the laser forward transfer of liquids

Duocastella¹,

Fernández-Pradas²,

Morenza³

et al. 2009

Journal of Applied Physics

Self Cite

136

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“…2 In recent years, significant study has been directed towards extending the range of materials that can be deposited using LIFT; metals, 3 oxides, 2 superconductors, 4 DNA, 5 proteins, 6 fungal spores, 7 polycrystalline Si, 8 and various important electronic and sensing materials 9 have all been transferred. In contrast, efforts to reduce the minimum achievable deposition dimensions have received comparatively little attention.…”

mentioning

confidence: 99%

Nanodroplets deposited in microarrays by femtosecond Ti:sapphire laser-induced forward transfer

Banks

Grivas

Mills

et al. 2006

Applied Physics Letters

142

108

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The authors present the deposition of nanoscale droplets of Cr using femtosecond Ti:sapphire laser-induced forward transfer. Deposits around 300 nm in diameter, significantly smaller than any previously reported, are obtained from a 30 nm thick source film. Deposit size, morphology, and adhesion to a receiver substrate as functions of applied laser fluence are investigated. The authors show that deposits can be obtained from previously irradiated areas of the source material film with negligible loss of deposition quality, allowing subspot size period microarrays to be produced without the need to move the source film. © 2006 American Institute of Physics. ͓DOI: 10.1063/1.2386921͔The laser-induced forward transfer ͑LIFT͒ technique exists as a method for the direct writing of a wide variety of materials with a minimum achievable resolution around 1 m. 1 It is of particular interest due to the ability to pattern material in air and at room temperature onto virtually any substrate. 2 In recent years, significant study has been directed towards extending the range of materials that can be deposited using LIFT; metals, 3 oxides, 2 superconductors, 4 DNA, 5 proteins, 6 fungal spores, 7 polycrystalline Si, 8 and various important electronic and sensing materials 9 have all been transferred. In contrast, efforts to reduce the minimum achievable deposition dimensions have received comparatively little attention. LIFT using nanosecond pulsed lasers ͑ns-LIFT͒ typically produces depositions which at best reproduce the shape and size of the laser focal spot. 10 Femtosecond-LIFT ͑fs-LIFT͒ using an UV excimer laser has been shown to be capable of subspot size depositions with diameters around 0.5 m. 3 Recently, it was demonstrated that ns-LIFT could also be used to produce subspot size deposits by carefully controlling the laser fluence just above the threshold for material transfer. 11 In LIFT, a thin film of the material to be deposited ͑the "source film"͒ is coated onto one face of a transparent substrate ͑the "carrier"͒ and brought into close contact with another substrate ͑the "receiver"͒. A single laser pulse is then focused through the carrier onto the carrier-film interface, where it is absorbed in a shallow layer of the film ͓Fig. 1͑a͔͒. Conventionally, LIFT then occurs by vaporization of film material at the constrained interface, with the resultant pressure buildup propelling film material to the receiver. However, this is the case only for thicker films and high laser fluence; for thin films and fluence just above the threshold for material transfer, it is possible for LIFT to occur solely by melt-through of the source film ͓Fig. 1͑b͔͒. With precise control of the laser fluence, only the center of the melt front reaches the free surface of the film ͓Fig. 1͑c͔͒, allowing molten material under pressure to expand through an unconstrained, subspot size region. With ns-LIFT this process has been shown to facilitate sublaser spot size printing. 11 In this letter we demonstrate that the same process can occur with fs-LIFT...

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“…Ce procédé a été largement étudié ces dernières années et a démontré en particulier son intérêt pour imprimer des matériaux de natures aussi différentes que des nanotubes [2], des céramiques [3], ou des matériaux biologiques particulièrement fragiles (cellules [4], ADN [5]). …”

Section: Introductionunclassified

Impression par laser UV picoseconde pour la micro-électronique organique

Rapp¹,

Alloncle²,

Ailuno³

et al. 2011

UVX 2010 - 10e Colloque Sur Les Sources Cohérentes Et Incohérentes UV, VUV Et X ; Applications Et Développements Récents

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Résumé. La potentialité d'une technique d'écriture directe assistée par laser est démontrée dans le cadre de la fabrication d'un composant électronique de base, le transistor à effet de champ. L'impression de pixels à partir de divers matériaux susceptibles d'intervenir dans la fabrication d'un OFET (conducteur, semi-conducteur, diélectrique...) qu'ils soient organiques ou non, a été réalisée sous l'irradiation à 355 nm d'un laser picoseconde. L'éjection et le dépôt de la matière ont été étudiés comparativement au type de matériau utilisé: métal, polymère ou oligomère sous formes solides, encre à nanoparticules métalliques sous forme liquide. Des informations sur la morphologie des pixels obtenus, sur leur résolution spatiale, sur leur épaisseur ainsi que sur leurs propriétés d'adhésion ont été déduites d'analyses par microscopie optique, électronique à balayage (MEB) et/ou à force atomique (AFM). L'utilisation d'une couche intermédiaire servant à piéger le rayonnement incident et donc à protéger le matériau à imprimer a également été abordée.

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Preparation of functional DNA microarrays through laser-induced forward transfer

Cited by 166 publications

References 11 publications

Time-resolved imaging of the laser forward transfer of liquids

Time-resolved imaging of the laser forward transfer of liquids

Nanodroplets deposited in microarrays by femtosecond Ti:sapphire laser-induced forward transfer

Impression par laser UV picoseconde pour la micro-électronique organique

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