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Related Concept Videos

Next-generation Sequencing03:00

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.

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Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies
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DNA deposition through laser induced forward transfer.

M Colina1, P Serra, J M Fernández-Pradas

  • 1Universitat de Barcelona, Departament de Física Aplicada i Optica, Martí i Franquès 1, E 08028 Barcelona, Spain. mcolina@ub.edu

Biosensors & Bioelectronics
|January 1, 2005
PubMed
Summary

Laser induced forward transfer (LIFT) enables precise deposition of biomolecules for biosensor production. This laser direct write technique proved effective for DNA microarray fabrication, matching traditional methods without damaging the genetic material.

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Area of Science:

  • Biotechnology
  • Materials Science
  • Molecular Biology

Background:

  • Laser induced forward transfer (LIFT) is a laser direct write technique.
  • LIFT offers high spatial resolution for depositing biomolecules, making it suitable for biosensor production.
  • The technique involves laser-pulse-driven transfer of a thin film material from a donor to a receptor substrate.

Purpose of the Study:

  • To evaluate the efficacy of LIFT for fabricating DNA microarrays.
  • To compare LIFT with conventional pin microspotting for cDNA transfer and microarray performance.
  • To assess potential DNA damage caused by the LIFT process.

Main Methods:

  • Fabrication of cDNA microarrays using both LIFT and pin microspotting on poly-L-lysine coated glass slides.
  • Hybridization of transferred cDNA microarrays with fluorescently labeled complementary DNA strands.
  • Analysis of microarray performance using fluorescence scanner to compare signal intensity and gene discrimination.

Main Results:

  • LIFT successfully fabricated microarrays of two different cDNAs.
  • LIFT-transferred microarrays demonstrated equivalent signal intensity and gene discrimination capacity compared to pin microspotted arrays.
  • The laser pulse in LIFT did not cause significant damage to the transferred DNA.

Conclusions:

  • Laser induced forward transfer is a viable and effective method for producing DNA microarrays.
  • LIFT offers comparable performance to pin microspotting for biosensor applications requiring high-resolution biomolecule patterning.
  • The LIFT technique preserves the integrity of the transferred DNA, ensuring its functionality in subsequent assays.