Results 291 to 300 of about 208,316 (325)
Some of the next articles are maybe not open access.
Journal of Toxicology: Clinical Toxicology, 1987
Rhodamine B is a red colored dye that is used in cosmetic products. We report a case of 17 patients who were exposed to aerosolized Rhodamine B inside a maintenance shop. The mean duration of exposure was 26 minutes (range 2-65). Sixteen of the patients (94%) complained of acute symptoms including: burning of the eyes (82%), excessive tearing (47 ...
D J, Dire, J A, Wilkinson
openaire +2 more sources
Rhodamine B is a red colored dye that is used in cosmetic products. We report a case of 17 patients who were exposed to aerosolized Rhodamine B inside a maintenance shop. The mean duration of exposure was 26 minutes (range 2-65). Sixteen of the patients (94%) complained of acute symptoms including: burning of the eyes (82%), excessive tearing (47 ...
D J, Dire, J A, Wilkinson
openaire +2 more sources
Chemical Physics Letters, 1973
Abstract The visible absorption fluorescence and phosporescence spectra and the polarized fluorescence and phosphorescence excitation spectra have been measured for the dimer form of rhodamine B. The rhodamine B dimer is somewhat unique in that it exhibits both fluorescence and phosphorescence whereas other dyes usually exhibit only phosphorescence ...
Takashi Kajiwara +2 more
openaire +1 more source
Abstract The visible absorption fluorescence and phosporescence spectra and the polarized fluorescence and phosphorescence excitation spectra have been measured for the dimer form of rhodamine B. The rhodamine B dimer is somewhat unique in that it exhibits both fluorescence and phosphorescence whereas other dyes usually exhibit only phosphorescence ...
Takashi Kajiwara +2 more
openaire +1 more source
Mediation of rhodamine B photodegradation by biochar
Chemosphere, 2020Significant degradation of organic contaminants in biochar sorption systems has recently been reported, demonstrating a promising potential application of biochar in pollution control. We hypothesized that the degradation of organic chemicals by biochar may be further enhanced under irradiation by UV light due to the photocatalytic activities of ...
Danping, Wu +7 more
openaire +2 more sources
Molecular forms of rhodamine B
Chemical Physics Letters, 1981Abstract Three molecular forms of rhodamine B (neutral, cationic and cationic-lactonic) in aqueous solutions are reported. The pka of the equilibria between the neutral and cationic forms as well as cationic and cationic-lactonic ones are evaluated. The dimerization constants of neutral and cationic forms (coloured) are also determined.
I.López Arbeloa, P.Ruiz Ojeda
openaire +1 more source
The photophysics of rhodamine B
Journal of Photochemistry, 1982Abstract The effects of solvent viscosity and dielectric constant on the photophysics of rhodamine B in its protonated and zwitterion forms were studied. The internal conversion rate is dependent on the S 1 -S 0 energy separation and increases when this gap is lowered through rotation of the diethylamino groups. Comparison is made with rhodamine 640
M.J. Snare +3 more
openaire +1 more source
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2022
Ring-opening reaction of rhodamine spirolactam has been widely applied to construct fluorescent probes. The fluorescence properties of the probe were finely tuned for specific purpose through changing the rhodamine fluorophore. However, the influence on response range and kinetic parameters of the probe during the change has been seldom discussed ...
Fei, Deng +6 more
openaire +2 more sources
Ring-opening reaction of rhodamine spirolactam has been widely applied to construct fluorescent probes. The fluorescence properties of the probe were finely tuned for specific purpose through changing the rhodamine fluorophore. However, the influence on response range and kinetic parameters of the probe during the change has been seldom discussed ...
Fei, Deng +6 more
openaire +2 more sources
Chemical Physics Letters, 1982
Abstract Aggregation of the coloured neutral and cationic forms of rhodamine β in aqueous solution has been studied. The formation constants and absorption of the dimers were determined. The geometric disposition of monomers in both aggregates and the nature of the association forces are discussed. Trimers are not formed.
I. López Arbeloa, P. Ruiz Ojeda
openaire +1 more source
Abstract Aggregation of the coloured neutral and cationic forms of rhodamine β in aqueous solution has been studied. The formation constants and absorption of the dimers were determined. The geometric disposition of monomers in both aggregates and the nature of the association forces are discussed. Trimers are not formed.
I. López Arbeloa, P. Ruiz Ojeda
openaire +1 more source
A new application of Rhodamine 200 B (Sulfo Rhodamine B)
Dyes and Pigments, 1995Abstract The laser dye Rhodamine 200 B (Sulfo Rhodamine B) (CI Acid Red 52) can be used as a fluorescent counterion for the transfer of various cationic species (e.g. cationic surfactants and crown-complexes of metal ions) into a chloroform phase. The extraction of ionic associates is found to be independent of the acidity of the aqueous phase within
openaire +1 more source
Studies of the metabolism of Rhodamine B
Toxicology and Applied Pharmacology, 1961Abstract Rhodamine B (D & C Red No. 19) was metabolized identically in the dog, rat, and rabbit as evidenced by paper chromatograms and paper electrophoretograms of their urines and fecal extracts. The dye was extensively absorbed from the gastrointestinal tract at low dietary levels.
J M, WEBB, W H, HANSEN
openaire +2 more sources
A rhodamine B-based lysosomal pH probe
Journal of Materials Chemistry B, 2015A novel rhodamine B-based lysosomal pH probe RML was developed. RML responded to acidic pH with short response time, high selectivity and high sensitivity and could detect lysosomal pH change in living cells.
Shi-Li, Shen +4 more
openaire +2 more sources