picryl


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pic·ryl

(pik'ril),
The organic radical derived from picric acid by removal of the hydroxyl group.
References in periodicals archive ?
Anaphylaxis induced by picryl chloride and 2:4 dinitrochlorobenzene," The Journal of Experimental Medicine, vol.
'The use of the stable free raadical diphenyl picryl hydraz (DPPH) for estimating antioxidative activity'.
The picryl chloride-induced delayed type hypersensitivity (PC-DTH) response in mice was depressed after the implantation of tumor and treatment with 5-FU.
The evidence of the presence of these radicals due to ultrasonic exposure was obtained by carrying out the sonication in the presence of unsaturated, polymerizable monomers by the trapping of the radicals using radical scavengers such as DPPH ([alpha],[alpha]'diphenyl picryl hydrazyl).
We obtained cyclosporin A from Sandoz, HPLC-grade methanol from Jiangsu Hanbon Science and Technology, S-adenosyl-L-methionine and 2,4,6-trinitrobenzene-sulfonic acid hydrate (TNBS) from Sigma-Aldrich, Sephadex LH-20 from Amersham Pharmacia Biotech, silica gel from Merck, and picryl chloride from Nacalai Tesque.
To sensitize mice, we painted 0.1 mL of 1% picryl chloride in ethanol onto the shaved skin of their abdomens.
Oxygen, sulfur, cucl2, Fecl3, p-benzoquinone, nitrobenzene, DPPH(diphenyl picryl hydrazyl) could scavange the radical used in the inks and coatings.
In the immunoglobulin (Ig)E-mediated allergic mouse model, AGE significantly decreased the antigen-specific ear swelling induced by picryl chloride ointment to the ear and intravenous administration of antitrinitrophenyl antibody.
When a solution of DPPH is mixed with that of a substance that can donate a hydrogen atom, then this gives rise to the reduced form with the loss of this violet color (although there would be expected to be a residual pale yellow color from the picryl group still present).
The antioxidant activity of the flower of Nymphaea stellata was determined by using a method based on the reduction of methanolic solution of colored-free radical 1, 1 di-phenyl-1-2 picryl hydrazyl (DPPH).
The antioxidant activity of various sub- fractions was assessed by measurement of scavenging ability of free radical 2, 2'- diphenyl-1- picryl hydrazyl.