The length of DE is 16.0 [Angstrom] along the long axis and 6.4 [Angstrom] along the short axis, and the length of the photoisomer
of DE is 14.0 [Angstrom] along the long axis and 7.0 [Angstrom] along the short axis.
Light can convert unconjugated bilirubin to a photoisomer
that reacts directly (87); it also causes total bilirubin to decrease by 0.34 [micro]mol * [L.sup.-1] * [h.sup.-1] (0.02 mg * [dL.sup.-1] * [h.sup.-1]).
The ring-opened merocyanine structure has a larger conjugated molecular system and is one of several photoisomers
formed upon ring-opening.
Moreover, evidence from 460-nm irradiation of bilirubin suggests that the probe may be relatively insensitive to photooxidized bilirubin and/or photoisomers of bilirubin (see online Supplemental Data and Supplemental Fig.
Photoisomers may also interfere with Bfmeasurements, especiallyduring phototherapy (25).
Nature and toxicity of two oxychlordane photoisomers
. J Agric Food Chem 21:1113-1115.
The clinical laboratory can only affect the in vitro formation of bilriubin photoisomers
by protecting samples from light, from sample collection to analysis.
Fornili, "Ab initio study on the photoisomers
of a nitro-substituted spiropyran," Chemical Physics Letters, vol.
A more evasive issue is the effect of photoisomers on Bf measurement and clinical application of the results.
Photoisomers: obfuscating factors in the peroxidase measurement of unbound bilirubin?
Spectral character of sunlight modulates photosynthesis of previtamin [D.sub.3] and its photoisomers
in human skin.
Spectral character of sunlight modulates photosynthesis of previtamin D3 and its photoisomers
in human skin.