NDLI: Self-Assembled Heterogeneous Integrated Fluorescence Detection System

Content Provider	IEEE Xplore Digital Library
Author	Kim, S.S. Saeedi, E. Meldrum, D.R. Parviz, B.A.
Copyright Year	2007
Description	Author affiliation: Dept. of Electr. Eng., Washington Univ., St. Louis, MO (Kim, S.S.; Saeedi, E.; Meldrum, D.R.; Parviz, B.A.)
Abstract	We present the current progress towards a fully integrated fluorescence detection system constructed via self-assembly of independently microfabricated excitation sources and photosensors onto a common template. The system template contains specifically shaped binding sites for micron-scale components and electrical interconnects. The self-assembly process allows for using materials such as plastic or glass for constructing the template that are incompatible with conventional microfabrication processes. The excitation sources are AlGaAs light emitting diodes and the photosensors are silicon pn junctions. These microcomponents are independently microfabricated and released from their respective substrates to yield a powder-like collection. The microcomponents are introduced over the template in a heated fluidic slurry and allowed to self-assemble onto the complementary-shaped binding sites. The self-assembly process is driven by capillary forces resultant from low melting point alloy coated on the electrical contact pads, fluidic forces, shape matching, and gravity. The final system offers a 3 times 3 array of individually addressable complete fluorescence detection units.
Starting Page	927
Ending Page	931
File Size	561480
Page Count	5
File Format	PDF
ISBN	1424406102
DOI	10.1109/NEMS.2007.352170
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-01-16
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fluorescence Self-assembly Plastics Glass Light emitting diodes Silicon Slurries Contacts Shape memory alloys Gravity self-assembly Fluorescence detection integrated opto-electronics lab-on-a-chip
Content Type	Text
Resource Type	Article

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