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Details of Award

NERC Reference : NE/B506035/1

Development of an instrument for sequential imaging of chlorophyll a fluorescence & Light Induced Breakdown Spectroscopy (LIBS) at single cell level

Grant Award

Principal Investigator:
Professor R Geider, University of Essex, Biological Sciences
Co-Investigator:
Professor GJC Underwood, University of Essex, Life Sciences
Science Area:
Terrestrial
Marine
Freshwater
Overall Classification:
Marine
ENRIs:
Natural Resource Management
Global Change
Science Topics:
Environmental Microbiology
Biogeochemical Cycles
Abstract:
We propose to develop an instrument for determination of photosynthetic performance and elemental composition of individual cells within mixed populations of microalgae. The instrument will employ fluorescence imaging, followed by the application of light-induced breakdown spectroscopy (LIBS). Chlorophyll fluorometry is a non-invasive technique for determining photosynthetic performance. Fluorescence imaging systems developed at Essex have successfully been used to probe the photosynthetic performance of individual cells within mixed populations of microalgae. LIBS can be used to determine the elemental composition of very small quantities of material. With this technique, a brief, high powered laser pulse is focused onto a sample to create plasma. Spectroscopic analysis of the light emitted as the plasma cools allows for identification of elements within the sample from their unique spectral signatures. There is ample published evidence that this technique could be successfully employed to determine the elemental composition of individual cells within mixed populations of micro algae. The most important application for this system will be in answering key questions regarding the role of phytoplankton and zooplankton taxa that play key functional roles in upper ocean nutrient cycling and biogeochemistry. In addition, we will be able to examine how photosynthetic performance is related to elemental composition within microalgae.
Period of Award:
2 Aug 2004 - 1 Jul 2007
Value:
£195,583
Authorised funds only
NERC Reference:
NE/B506035/1
Grant Stage:
Completed
Scheme:
Capital Equipment Pre FEC
Grant Status:
Closed

This grant award has a total value of £195,583  

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FDAB - Financial Details (Award breakdown by headings)

Total - T&STotal - StaffTotal - Other CostsTotal - Indirect CostsTotal - Equipment
£2,251£79,828£33,197£36,721£43,586

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