Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Announcements

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Tools

Carbon nanodots do an ultrafine job with in vitro lung tissue: New experiments highlight the role of charge and size when it comes to carbon nanodots that mimic the effect of nanoscale pollution particles on the human lung. September 12th, 2018

Terahertz spectroscopy enters the single-molecule regime September 7th, 2018

Mirrorcle Demonstrates MEMS-based Programmable Light Source at CES and PW18 August 30th, 2018

Stress-free ALD from Picosun August 28th, 2018

Photonics/Optics/Lasers

Halas wins American Chemical Society Award in Colloid Chemistry: Rice University nanophotonics pioneer honored for colloid research September 18th, 2018

Tiny camera lens may help link quantum computers to network September 14th, 2018

New photonic chip promises more robust quantum computers September 14th, 2018

Laser sintering optimized for printed electronics: New study sheds (laser) light on the best means of laying down thin-film circuitry September 13th, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project