Dynamic formation of optically trapped microstructure arrays for biosensor applications

V.R. Daria, P.J. Rodrigo, J. Glückstad

Research output: Contribution to journalJournal articleResearchpeer-review


We explore the dynamic properties of multiple-beam optical traps to manipulate arrays of microstructures for biosensor applications. Multiple optical traps are generated by a virtually loss-less transformation of input phase patterns into high-intensity trapping-beams. A direct image projection of the phase patterns enables an adjustable number of optical traps in addition to instantaneous control of the position, size, shape and intensity of each trapping-beam. We present experimental results showing various colloidal formations through dynamic optical manipulation of polystyrene microspheres and yeast cells in aqueous media. The experimental configurations are geared towards the use of multiple-beam optical traps for biosensor applications.

Original languageEnglish
JournalBiosensors and Bioelectronics
Issue number11
Pages (from-to)1439-1444
Publication statusPublished - 2004


  • Multiple-beam optical traps
  • Miniaturized laboratories
  • Micromanipulation


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