A directly stackable microsystem onto the cultured cells for cytotoxicity tests |
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Authors: | Hyunwoo Bang Won Gu Lee Hoyoung Yun Chanil Chung Jun Keun Chang Dong-Chul Han |
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Affiliation: | (1) School of Mechanical and Aerospace Engineering and Institute of Advanced Machinery and Design, Seoul National University, Kwanak, P.O. Box 34, Seoul, 151-742, Republic of Korea;(2) Digital Bio Technology, Inc., Seoul, 151-742, Republic of Korea |
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Abstract: | Today’s pharmaceutical industry is facing several challenges resulting from a vastly increasing number of samples through
a high-throughput screening. In addition, the increased demand for cytotoxicity tests have caused bottlenecks, which in turn
is causing serious problems. Here we present a novel approach to performing the cytotoxicity test. This new method uses a
directly stackable microsystem on the cultured cells. It also enables us to perform cytotoxicity tests with more reliability
by providing exactly the same cell-culture environment for all experiments. The new approach consists of two fascinating modules:
First, a serial dilution module can linearly dilute one drug solution into several diluted ones in a serial manner, and equally
distribute them into independent microchambers. Secondly, a microcompartment module can firmly attach itself onto any cultured
cells and divide the directly-covered cell surface into multiple well-type microchambers instantaneously. This microsystem
has a strong feasible advantage. It hardly needs to modify the established cell culture protocols, and at the same time it
can eliminate some repetitive and laborious processes. A quick flexible integrated microsystem would reduce many redundant
efforts during on-chip cytotoxicity tests.
H. Bang and W. G. Lee equally contributed to this work. |
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