Document Detail

Design and first results of CytoBuoy: a wireless flow cytometer for in situ analysis of marine and fresh waters.
MedLine Citation:
PMID:  10547609     Owner:  NLM     Status:  MEDLINE    
BACKGROUND:The high costs of microscopical determination and counting of phytoplankton often limit sampling frequencies below an acceptable level for the monitoring of dynamic ecosystems. Although having a limited discrimination power, flow cytometry allows the analysis of large numbers of samples to a level that is sufficient for many basic monitoring jobs. For this purpose, flow cytometers should not be restricted to research laboratories. We report here on the development of an in situ flow cytometer for autonomous operation inside a small moored buoy or on other platforms. METHODS AND RESULTS: Operational specifications served a wide range of applications in the aquatic field. Specific conditions had to be met with respect to the operation platform and autonomy. A small, battery-operated flow cytometer resulted, requiring no external sheath fluid supply. Because it was designed to operate in a buoy, we call it CytoBuoy. Sampling, analysis, and radio transmission of the data proceed automatically at user-defined intervals. A powerful feature is the acquisition and radio transmission of full detector pulse shapes of each particle. This provides valuable morphological information for particles larger than the 5-microm laser focus. CONCLUSIONS:CytoBuoy allows on-line in situ particle analysis, estimation of phytoplankton biomass, and discrimination between different phytoplankton groups. This will increase the applicability of flow cytometry in the field of environmental monitoring.
G B Dubelaar; P L Gerritzen; A E Beeker; R R Jonker; K Tangen
Related Documents :
8423519 - Blood flow changes in the tibia during external loading.
10956349 - Alterations in skeletal perfusion with simulated microgravity: a possible mechanism for...
19037789 - Loss of bone calcium in exposure to 50 hz magnetic fields.
7379909 - Simple estimation of blood content in bone homogenates for the determination of the rea...
8075579 - Standardized multicentric quantimetry of differentiation antigens expression. the geil'...
8340829 - Laser doppler flowmetry for estimation of bone blood flow: studies of reproducibility a...
10803699 - Effects of decreased cerebral perfusion pressure on cerebral hemodynamics, brain cell m...
1448489 - Orally administered cyclo(his-pro) reduces ethanol-induced narcosis in mice.
1676209 - Skin response to histamine. reproducibility study of the dry skin prick test method and...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Cytometry     Volume:  37     ISSN:  0196-4763     ISO Abbreviation:  Cytometry     Publication Date:  1999 Dec 
Date Detail:
Created Date:  2000-02-07     Completed Date:  2000-02-07     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8102328     Medline TA:  Cytometry     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  247-54     Citation Subset:  IM    
Copyright Information:
Copyright 1999 Wiley-Liss, Inc.
Dubelaar Research Instruments Engineering, Bodegraven, The Netherlands.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Automatic Data Processing
Equipment Design
Flow Cytometry / instrumentation*,  methods
Fresh Water / analysis*
Optics and Photonics
Phytoplankton / cytology*
Scattering, Radiation
Seawater / analysis*
Water Microbiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Heparin-binding EGF-like growth factor is expressed by mesangial cells and is involved in mesangial ...
Next Document:  Computer-assisted analysis of epiluminescence microscopy images of pigmented skin lesions.