High performance nanostructured iron fluorides with controllable sizes were successfully synthesized using oleylamine as a size tuning agent for the first time. They exhibited excellent cathode performances with large retensive capacities exceeding 200 mA h g(-1) after 50 cycles and outstanding rate performances of nearly 100 mA h g(-1) even at 10 C.

Irradiation of electron-donating substituted phenyl halides (fluorides and chlorides) or esters (mesylates, triflates and phosphates) in aqueous MeCN in the presence of KCN gives the corresponding benzonitriles in 48 to 100% yield through an ArSN1 reaction with the intermediacy of a triplet phenyl cation.

UNLABELLED Fluorides play a significant role in the promotion of oral health, fostering remineralization, inhibiting demineralization processes in the enamel, and having antibacterial activity. The effects of fluorides are mostly exerted by their topical effect. The beneficial effect of amine fluorides (AmF) on caries and dental plaque reduction has been known for a long time. The caries reduci...

The prevalence of dental fluorosis has increased since the 1930s in both fluoridated and nonfluoridated United States communities because of increased exposure to systemic fluorides. 1-4 Although the increase in dental fluorosis is of the mild and very mild categories and poses no immediate health problem, more severe levels are of esthetic concern and may threaten the continued use of systemic...

A practical, rapid, and highly regioselective Cu-catalyzed radiofluorination of (mesityl)(aryl)iodonium salts is described. This protocol utilizes [(18)F]KF to access (18)F-labeled electron-rich, -neutral, and -deficient aryl fluorides under a single set of mild conditions. This methodology is applied to the synthesis of protected versions of two important radiotracers: 4-[(18)F]fluorophenylala...

This study evaluated the susceptibility to amine fluorides (AmFs) of planktonic and biofilm cultures of Streptococcus sanguis grown with and without sucrose. Cultures were incubated with AmFs (250 mg of fluoride liter-1) for 1 min. The susceptibility of biofilms was less than that of the planktonic form and was further decreased by growth in the presence of sucrose.

Abstract— A technique for studying the spatial structure of hybrid X-pinch plasma objects in X-ray range is described, and main experimental results are presented. The spectral characteristics sources have been measured. investigations carried out using thermoluminescent detectors based on lithium fluorides LiF(Mg, Ti).

PURPOSE The purpose of this study was to assess Maryland dental hygienists' knowledge, practices and opinions regarding dental caries prevention and early detection. METHODS A 30 item survey was mailed to 1,258 Maryland dental hygienists. Two follow-up mailings and email reminders were sent. RESULTS The response rate was 43% (n=540). Nearly all respondents were female (98%), and 58% practi...