Combining multiple optical trapping with microflow manipulation for the rapid bioanalytics on microparticles in a chip.
An array of four independent laser traps is combined with a polydimethylsiloxane microfluidic chip to form a very compact system allowing parallel processing of biological objects. Strong three dimensional trapping allows holding objects such as functionalized beads in flows at speeds near 1 mm/s, enabling rapid processing. By pressure control of the inlet flows, the trapped objects can be put in contact with different solutions for analysis purpose. This setup, including a fluorescence excitation-detection scheme, offers the potential to perform complex biochemical manipulations on an ensemble of microparticles.
ARCoptix S.A., Ch. Trois-Portes 18, NE-2000 Neuchâtel, Switzerland.
G
G
Boer
R
R
Johann
J
J
Rohner
F
F
Merenda
G
G
Delacrétaz
Ph
P
Renaud
R-P
RP
Salathé
D001681:Biological Assay / Q000295:instrumentation* / Q000379:methods; D018929:Cell Culture Techniques / Q000295:instrumentation* / Q000379:methods; D002469:Cell Separation / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005434:Flow Cytometry / Q000295:instrumentation* / Q000379:methods; D017022:Flow Injection Analysis / Q000295:instrumentation / Q000379:methods; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation* / Q000379:methods; D008846:Micromanipulation / Q000295:instrumentation* / Q000379:methods; D008863:Microspheres; D052898:Optical Tweezers; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013048:Specimen Handling / Q000295:instrumentation / Q000379:methods; D018511:Systems Integration