期刊
ANALYTICAL BIOCHEMISTRY
卷 397, 期 2, 页码 244-246出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2009.10.011
关键词
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In vivo nuclear magnetic resonance (NMR) monitoring requires a high-density cell suspension, where cell precipitation should be avoided. We have designed a miniaturized cell agitator that fits entirely into an 8-mm NMR probe but that, being mounted into the instrument, is situated outside of the sensitive area. The device consists of two glass tubes connected in a way that, when gas flow is blown through them, creates influx of cell suspension into the device that returns through apertures. This flow creates continuous circular vortex of the cell suspension in the whole sample volume, whereas there are no moving mechanical parts or gas bubbles crossing the instrument's sensitive area. The gas flow controls conditions of the cell Suspension and removes volatile waste metabolites. (C) 2009 Elsevier Inc. All rights reserved.
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