Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Study on electron transfer of fluorescent probe lumichrome and nucleic acid by laser flash photolysis

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

This Article is currently unavailable for purchase.
Add to Favorites
You must be logged in to use this functionality

Cover image Placeholder

Laser flash photolysis (LFP) of lumichrome (LC) has been studied upon laser excitation at 355 nm. The transient absorption spectra of LC in aqueous solution displayed two bands at 380 nm and 540–700 nm for the triplet 3LC, and a wide band at 430–530 nm for the radical anion LC˙. The triplet-state lifetime was measured up to 12 μs. It was found that the self-quenching of 3LC by the ground state of LC occurred to produce LC˙ during LFP. The transient spectra of LC in the presence of electron-donating triphenylamine (TPA), nucleosides and nucleic acids showed that the absorbance of 3LC was strongly quenched by these substrates and the formation of LC˙ was enhanced in a great extent simultaneously. The bimolecular quenching kinetics were studied and the rate constants of 3LC by a series of quenchers, including TPA, LC, nucleosides and nucleic acids were determined to be 108–109M−1 s−1. The photo-induced electron-transfer mechanism for these processes involving the triplet 3LC was proposed.

10.1163/156856706778606471
/content/journals/10.1163/156856706778606471
dcterms_title,pub_keyword,dcterms_description,pub_author
10
5
Loading
Loading

Full text loading...

/content/journals/10.1163/156856706778606471
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156856706778606471
Loading

Article metrics loading...

/content/journals/10.1163/156856706778606471
2017-11-18

Sign-in

Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation