Light-induced immobilization of biomolecules as an attractive alternative to micro-droplet dispensing-based arraying technologies

Meg Duroux, Esben Skovsen, Maria Teresa Neves-Petersen, Laurent Duroux, Lenoid Gurevich, Carl Borrebaeck, Christer Wingren, Steffen Petersen

Research output: Contribution to journalArticlepeer-review

Abstract

The present work shows how UV light-induced molecular immobilisation (LIMI) of biomolecules onto thiol reactive surfaces can be used to make biosensors, without the need for traditional microdispensing technologies. Using LIMI, arrays of biomolecules can be created with a high degree of reproducibility. This technology can be used to circumvent the need for often expensive nano/microdispensing technologies. The ultimate size of the immobilised spots is defined by the focal area of the UV beam, which for a diffraction-limited beam can be less than 1 m in diameter. LIMI has the added benefit that the immobilised molecules will be spatially oriented and covalently bound to the surface. The activity of the sensor molecules is retained. Antibody sensor arrays made using LIMI demonstrated successful antigen binding. In addition, the pattern of immobilised molecules on the surface is not restricted to conventional array formats. The ultimate consequence of the LIMI is that it is possible to write complex protein patterns using bitmaps at high resolution onto substrates. Thus, LIMI of biomolecules provides a new technological platform for biomolecular immobilisation and the potential for replacing present microdispensing arraying technologies.
Original languageEnglish
Pages (from-to)1113-1113
JournalProteomics
Volume7
Issue number19
DOIs
Publication statusPublished - 2008

Bibliographical note

Please see errata published in Proteomics in May 2008 for correct authorlist, material and methods and references.

Subject classification (UKÄ)

  • Immunology in the medical area

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