Biomedical Microdevices

, Volume 7, Issue 1, pp 35–40

Micro/Nanofluidic Device for Single-Cell-Based Assay


DOI: 10.1007/s10544-005-6169-5

Cite this article as:
Yun, KS. & Yoon, E. Biomed Microdevices (2005) 7: 35. doi:10.1007/s10544-005-6169-5


In this paper we have proposed and demonstrated a microfluidic device for a fast and parallel single-cell based assay. The proposed device is designed to passively capture single-cells or beads on multiple cell-positioning sites by a pre-defined fluidic stream and inject specific reagents or drugs onto each isolated single-cell. The device consists of surface-modified silicon channels capped with a grooved polydimethylsiloxane (PDMS) cover layer. A cell capture experiment has been performed using polystyrene beads as well as CHO DG44 living cells, and successful positioning of a single-cell on the cell-positioning sites was achieved. Also, we have demonstrated independent drug injection into a specific target cell.

Key Words

lab-on-a-chip single-cell analysis cell capture drug screening surface modification 

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Department of Electrical Engineering and Computer Science (Division of Electrical Engineering)Korea Advanced Institute of Science and Technology (KAIST)Yuseong-guKorea

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