The dye for the excretory function test of the liver has been investi gated by many authors, and methylenblue (MB), indigocarmine (IC), congo red (CR), phenoltetrachlorphthalein (PTCP), azorubin S (AS), rose bengal (RS) and bromsulphalein (BS) had been used as the dye for the test. Moreover, we1) added recently bromphenolblue (BPB) to these as a new dye. In this paper, I examined experimentally...

Laguna Negra and Lo Encañado are two oligotrophic Andean lakes forming part of the system fed by meltwater from distinct glacial tongues of the Echaurren glacier in central Chile, which is in a recession period. The recent increase in temperature and decline in precipitation have led to an increase of glacial meltwater and sediments entering these lakes. Although the lacustrine systems are also...

We have recently demonstrated that singlet oxygen-mediated photooxidation can cause an increase in blue fluorescence and covalent cross-linking in bovine lens crystallins in vitro. Because these changes closely parallel modifications known to occur in human crystallins during aging and cataractogenesis, it was suggested that singlet oxygen may play an important role in these processes in vivo. ...

A quantitative (multistep) excitation-deactivation model of rose bengal (RB) has been developed which includes energy and electron transfer to oxygen and the possibility of photoproduct formation via higher excited triplet-singlet states. The model is based on previous measurements of non-linear absorption (NLA) and emission of RB with picosecond pulses at 532 nm and on NLA measurements with na...

Economic Considerations in Designing Emergency Management Institutions and Policies for Transboundary Disasters Adam Rose a & Tyler Kustra b a Center for Risk and Economic Analysis of Terrorism Events , Price School of Public Policy University of Southern California , Los Angeles , CA , USA b Wilf Family Department of Politics , New York University , New York , NY , USA Published online: 27 Mar...

Results differ as to whether Brucella infection during pregnancy increases a woman's risk of miscarriage. We determined the seroprevalence of BrucelIa spp. among a sample of women with miscarriage and women with no history of miscarriage in Jordan during January-July 2003. Serum samples were collected from 445 women with miscarriage and a similar number of women with no history of miscarriage, ...

Photogalvanic effect was studied in photogalvanic cells containing Rose Bengal as dyes and Mannitol as reductants. The photogalvanic cells were determined by the photo potential, photocurrent, conversion efficiency, power of cell and performance of cell. The effects of various parameters like pH, light intensity, diffusion length, reductant concentration and dye concentration on the electrical ...

Many photoactive dyes are relatively nontoxic to vertebrates despite their insecticidal properties. Several photoactive dyes known to be toxic to some groups of insects were evaluated at various concentrations for toxicity to American and migratory grasshoppers in laboratory and field studies. Rose bengal and phloxine B were effective at inducing mortality of grasshoppers when applied at 2 and ...

A number of N-phenyl-1,4-naphthoquinone monoimines 6-10 were prepared by on-water oxidative phenylamination of 1,5-dihydroxynaphthalene (1) and 5-acetylamino-1-hydroxynaphthalene (5) with oxygen-substituted phenylamines under aerobic conditions and either solar or green LED radiation, in the presence of rose bengal as singlet oxygen sensitizer. As compared to the conventional oxidative phenylam...

A burst of free oxygen radical production has been demonstrated during the early moments of reperfusion, coincident with the onset of reperfusion arrhythmias, which can be attenuated by antioxidants. We have investigated whether a sudden burst of oxidant stress, superimposed on that occurring during reperfusion, can exacerbate reperfusion arrhythmias. Rat hearts (n = 12/group) were subjected to...