A previously presented homogeneous assay method, named the excimer-forming two-probe nucleic acid hybridization (ETPH) method, is based on specific excimer formation between two pyrenes attached at the neighboring terminals of two sequential probe oligonucleotides complementary to a single target. In this study, we investigated assay conditions and optimal molecular design of probes for intense...

By reducing the dimensions of hollow cathodes into the hundred micrometer range, stable, direct current, high ~atmospheric! pressure glow discharges in rare gases, rare gas–halide mixtures and in air could be generated. The electron energy distribution in these microdischarges is non-Maxwellian, with a pronounced high-energy tail. The high electron energy together with the high gas density, whi...

Newkome-type first, second and third generation dendrimers, having t-butyl (GB), ethyl (GE) and carboxylic (GA) end groups, were synthesized. A pyrene group, which can act as fluorescent sensor, was attached to the core of the dendrimers and their photophysical properties in aqueous solution were studied. These dendrimers were found to aggregate in aqueous solution, which manifested as an excim...

This paper reviews the potential role of excimer lasers in corneal surgery. The morphology of incisions induced by two wavelengths of excimer laser radiation, 193 nm and 248 nm, are compared with the morphology of incisions produced by diamond and steel knives. Analysis suggests that ablation induced by excimer laser results from highly localised photochemical reactions and that 193 nm is the o...

SEPTEMBER 2010 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 85 Editor’s note: In last month’s Fundamentals column, Kathryn Masselam Hatch, MD; and Jonathan H. Talamo, MD, provided a comprehensive overview of excimer laser technology. Drs. Hatch and Talamo discussed basic concepts such as fluence, beam profile, ablation pattern, and eye tracking and registration to help readers optimize excimer la...

We report electrochemical studies and the observation of excimer emission from the conjugated polymer poly(9,9-dioctylfluorene) (PDOF) in benzene-MeCN solutions during electrogenerated chemiluminescence (ECL). The ECL emission spectrum resulting from the annihilation reaction between PDOF radical ions is characterized by two bands, one at 438 nm and a broad band centered at 610 nm. The ECL emis...

Articles you may be interested in A model of electrical conduction across the grain boundaries in polycrystalline-silicon thin film transistors and metal oxide semiconductor field effect transistors Polycrystalline silicon thin-film transistors with location-controlled crystal grains fabricated by excimer laser crystallization Appl. Improvement of the electrical performance in metal-induced lat...

We studied the recovery of corneal sensitivity and corneal regeneration after excimer laser and manual epithelial debridement. The corneal epithelia of right eyes of New Zealand white rabbits (n = 21) were manually debrided and the corneal epithelia of the left eyes were ablated with the excimer laser (47 mm depth, 5 Hz, and 160 mJ/cm2). The relative density of innervation on the intraepithelia...

Low pressure excimer discharges ~,1–5 Torr! are of interest for use as ultraviolet sources for lighting applications. XeI(B) is an attractive candidate for excimer lamps due to the low corrosive properties of iodine. The excimer is thought to be formed by either harpoon or ion-ion recombination reactions, the latter of which requires a third body. The formation of the excimer at low pressures i...