geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Ultralow power trapping and fluorescence detection of single particles on an optofluidic chip


, : Ultralow power trapping and fluorescence detection of single particles on an optofluidic chip. Lab on A Chip 10(2): 189-194

The development of on-chip methods to manipulate particles is receiving rapidly increasing attention. All-optical traps offer numerous advantages, but are plagued by large required power levels on the order of hundreds of milliwatts and the inability to act exclusively on individual particles. Here, we demonstrate a fully integrated electro-optical trap for single particles with optical excitation power levels that are five orders of magnitude lower than in conventional optical force traps. The trap is based on spatio-temporal light modulation that is implemented using networks of antiresonant reflecting optical waveguides. We demonstrate the combination of on-chip trapping and fluorescence detection of single microorganisms by studying the photobleaching dynamics of stained DNA in E. coli bacteria. The favorable size scaling facilitates the trapping of single nanoparticles on integrated optofluidic chips.

US$19.90

PMID: 20066246

DOI: 10.1039/b915750f


Other references

Arenas-Prat, J., 2011: Scapholunate dissociation with radiolunate arthritis without radioscaphoid arthritis. Journal of Hand Surgery 35(12): 2130; Author Reply 2130-1

Björkström, N.K.; Fauriat, C.; Bryceson, Y.T.; Sandberg, J.K.; Ljunggren, H-Gustaf.; Malmberg, K-Johan., 2010: Analysis of the KIR repertoire in human NK cells by flow cytometry. Human natural killer (NK) cells are regulated by a diverse receptor repertoire. This makes multi-color flow cytometry-based approaches highly attractive for detailed phenotypical evaluation of NK cells. Several functional parameters can also be ev...

Turbes, C.C.; Jobe, D.L.; Schneider, G.T.; Morgan, R.J., 1972: Studies on brain programmed stimulation of the brain. Biomedical Sciences Instrumentation 9: 155-160

Lim, KKP., 1990: Two recent records of the toad, Pelophryne brevipes (Peters, 1867) (Anura: Bufonidae) from Singapore. Raffles Bulletin of Zoology, 381: 25-26

Holden, Constance, 1999: Australasian roots proposed for 'Luzia'. Walter Neves of the University of Sao Paulo has proposed that some early colonizers of the Americas had the same roots as the aboriginals of Australia. The Brazilian anthropologist studied around 30 skulls that had associated sediments containing...

Cassity T.R.; Kolodziej B.J.; Pfister R.M., 1977: Ultrastructure of the firmly adherent capsule produced by bacillus megaterium atcc 19213. Abstracts of the Annual Meeting of the American Society for Microbiology 77: 184

Watanabe, H., 1998: Soil excavation by the deutzia andrenid bee (Andrena prostimias) in a temple garden in Hyogo Prefecture, Japan. The amount of soil excavated by the deutzia andrenid bee (Andrena prostimias) in the garden of Gakuonji temple, Japan, was estimated and compared with that of other burrowing soil animals. These bees deposit soil around the entrances to their low...

Rosemeyer, B.; Pförringer, W., 1979: Posttraumatic maladjustments of the lower extremity. Corrective osteotomy, indication and surgical technic. Mmw, Munchener Medizinische Wochenschrift 121(39): 1251-1252

Korsos, Z., 1991: The centipede and millipede fauna of the Batorliget nature reserves (Chilopoda and Diplopoda). Studia Naturalia, 11: 259-266

Inaba, M.; Kamata, K.; Kamide, M., 1981: Effects of adrenal demedullation and peripheral noradrenaline-depleting agents on adrenocortical function and spleen in rats. Adrenocortical functions of adrenal-demedullated rats (ADMx rats) and peripherally chemical-sympathectomized ADMx rats were studied by examining changes in the levels of serum and adrenal corticosteroids (CS). Resting levels of serum and adrenal C...