Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Flash photolysis spectrometer helps with light harvesting research

Abstract:
Researchers at the University of Connecticut have been using the LP920 flash photolysis spectrometer from Edinburgh Instruments as part of their research into plant light harvesting complexes1. A paper has been published2 with collaborators at Kwansei Gakuin University examining the efficiency of variants of the Peridinin-Chlorophyll a-Protein (PCP) complex in providing photoprotection from singlet oxygen formation. PCP's highly effective protective capacity against these photodynamic reactions is extremely important since singlet oxygen can directly provoke cellular damage in plants by rapidly oxidizing cellular components.

Flash photolysis spectrometer helps with light harvesting research

Livingston, UK | Posted on December 6th, 2012

The LP920 was used to record transient triplet-minus-singlet absorption spectra of chlorophyll a with different peridinin molecular analogs in polar and non-polar solvents, allowing the dynamics of the reactions to be investigated. Although the results showed that the spectral bands are shifted depending on the molecular analog used, the dynamics of triplet state decay remain very similar for each analog meaning that there is no marked difference between them in terms of their ability to protect against singlet oxygen formation.

The LP920 is a computer-controlled, fully automated flash photolysis spectrometer, equipped with a large sample chamber to house a variety of sample holders. Excitation pulses at 660 -670 nm for these experiments were provided using an Nd:YAG-pumped laser light source. A pulsed, high-intensity 450 W Xenon lamp was used for the transient absorption spectral measurements.

1 Light harvesting complexes consist of proteins and photosynthetic pigments that surround a photosynthetic reaction centre and collect more of the incoming light than would be captured by this centre alone.

2 S. Kaligotla, S. Doyle, D. M. Niedzwiedzki, S. Hasegawa, T. Kajikawa, S. Katsumura & H. A. Frank, Photosynth. Res (2010) 103; 167-174

####

For more information, please click here

Contacts:
Press Enquiries:
In Press Public Relations Ltd
PO Box 24
Royston, Herts, SG8 6TT
Tel: +44 1763 262621

Internet: www.inpress.co.uk

Other Enquiries:
Edinburgh Instruments Ltd
2 Bain Square, Kirkton Campus
Livingston, EH54 7DQ, UK
Tel: + 44 1506 425 300

Copyright © Edinburgh Instruments

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Basel physicists develop efficient method of signal transmission from nanocomponents May 23rd, 2015

This Slinky lookalike 'hyperlens' helps us see tiny objects: The photonics advancement could improve early cancer detection, nanoelectronics manufacturing and scientists' ability to observe single molecules May 23rd, 2015

Visualizing How Radiation Bombardment Boosts Superconductivity: Atomic-level flyovers show how impact sites of high-energy ions pin potentially disruptive vortices to keep high-current superconductivity flowing May 23rd, 2015

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

Announcements

Basel physicists develop efficient method of signal transmission from nanocomponents May 23rd, 2015

This Slinky lookalike 'hyperlens' helps us see tiny objects: The photonics advancement could improve early cancer detection, nanoelectronics manufacturing and scientists' ability to observe single molecules May 23rd, 2015

Visualizing How Radiation Bombardment Boosts Superconductivity: Atomic-level flyovers show how impact sites of high-energy ions pin potentially disruptive vortices to keep high-current superconductivity flowing May 23rd, 2015

New Antibacterial Wound Dressing in Iran Can Display Replacement Time May 22nd, 2015

Tools

This Slinky lookalike 'hyperlens' helps us see tiny objects: The photonics advancement could improve early cancer detection, nanoelectronics manufacturing and scientists' ability to observe single molecules May 23rd, 2015

Nanometrics Announces Live Webcast of Upcoming Investor and Analyst Day May 20th, 2015

Taking control of light emission: Researchers find a way of tuning light waves by pairing 2 exotic 2-D materials May 20th, 2015

DELMIC announces a workshop hosted by Phenom World on Integrated CLEM to be held on Wednesday June 24th at the Francis Crick Institute (Lincoln Inn Fields Laboratory). May 19th, 2015

Photonics/Optics/Lasers

This Slinky lookalike 'hyperlens' helps us see tiny objects: The photonics advancement could improve early cancer detection, nanoelectronics manufacturing and scientists' ability to observe single molecules May 23rd, 2015

Samtec, Global Provider of Interconnect Systems, Joins IRT Nanoelec Silicon Photonics Program May 21st, 2015

Taking control of light emission: Researchers find a way of tuning light waves by pairing 2 exotic 2-D materials May 20th, 2015

Computing at the speed of light: Utah engineers take big step toward much faster computers May 18th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project