Document Detail


Transmission infrared spectroscopy of whole blood--complications for quantitative analysis from leucocyte adhesion during continuous monitoring.
MedLine Citation:
PMID:  20449832     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Infrared spectroscopy has been applied to analyse glucose and cellular components in whole blood with the aim of developing an online clinical diagnostic and monitoring modality. Leucocyte adsorption onto the CaF(2) windows was observed over a period of several hours under continuous blood flow using a transmission cell of 30 mum path length. This build-up of cellular material on the windows is responsible for diminishing the sample path length under the flow conditions chosen. The adsorption dynamics have been characterised and their impact on glucose monitoring is reported. For short-term monitoring (<2 hours) a standard error of prediction of 11 mg/dL with human citrated blood samples from three different subjects was achieved. Furthermore, the leucocyte build-up was also reported for porcine EDTA blood monitoring. Consequences and testing opportunities with regard to the first stages in the immune cell reaction to the exposure of body-foreign materials to anticoagulated whole blood are discussed.
Authors:
Thorsten Vahlsing; Uwe Damm; Venkata Radhakrishna Kondepati; Steffen Leonhardt; Mathias D Brendel; Bayden R Wood; H Michael Heise
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of biophotonics     Volume:  3     ISSN:  1864-0648     ISO Abbreviation:  J Biophotonics     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-27     Completed Date:  2010-12-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101318567     Medline TA:  J Biophotonics     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  567-78     Citation Subset:  IM    
Copyright Information:
(c) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany.
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MeSH Terms
Descriptor/Qualifier:
Animals
Artifacts*
Cell Adhesion / physiology
Cells, Cultured
Humans
Leukocytes / physiology*
Spectrophotometry, Infrared / methods*
Swine

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