Naphthalene -Diselenide-Based BODIPY Probe for the Detection of Hydrogen Peroxide, Butylhydroperoxide, Hydroxyl Radical, and Peroxynitrite Ion.

Dimethoxynaphthalene peri-diselenide-based BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) probe has been synthesized. The probe demonstrated selectivity and sensitivity for hydrogen peroxide (HO) and butylhydroperoxide (BuOOH), hydroxyl radical (OH), and peroxynitrite ion (ONOO) detection and reversibility upon treatment with glutathione. The limits of detection of the probe were observed to be 0.

Structural studies of copper sulfide films: effect of ambient atmosphere.

We examined the structural properties of copper sulfide films as a function of the sulfurization time of 70-nm-thick Cu films. Copper sulfide films with various phases such as mixed metallic Cu-chalcocite, chalcocite, roxbyite, and covellite phases were formed with increasing sulfurization time. To evaluate the structural stability of various films, all the films were exposed to the ambient atmosphere for the same amount of time.