Rhodamine–propargylic esters for detection of mitochondrial hydrogen sulfide in living cells
30
Citation
29
Reference
10
Related Paper
Citation Trend
Keywords:
Thio-
Rhodamine
Moiety
Thiolysis
Rhodamine 123
Rhodamine B
Rhodamine B is a synthetic dye in the form of a powder, generally used for the purpose of changing colors in textile and paper factories. Rhodamine B is a chemical that is dangerous, absolutely should not be mixed in food, beverages and cosmetics, besides that rhodamine also has toxic properties so it must be degraded to reduce its toxicity. This research uses ZnO/Mn material which is synthesized using laser ablation in liquid (PLAL) technique as the degradation of rhodamine B waste. ZnO/Mn photocatalyst against rhodamine B dye. The results of the FE-SEM show that with the addition of Mn doping, the bond between the particles is getting better. ZnO/Mn with a variation of 0.1 mM obtained the best results for degradation, namely 89.474%, and the energy gap was 3.3196 eV.
Rhodamine B
Rhodamine
Degradation
Laser Ablation
Cite
Citations (0)
It is found that Rhodamine B has strong ECL on the Pt electrode in alkaline solution.In optimized condition,in the range between 1.2×10-7and 1.1×10-6 mol/L,the ECL intensity has linear relationship with the concentration of Rhodamine B,the detection limit(define as S/N=3) is 9.0×10-8 mol/L.The mechanism for the ECL of Rhodamine B has been proposed too.It is known that Rhodamine B can react with some bioactive compounds,so it is possible to detect those compounds through the ECL of Rhodamine B.
Electrochemiluminescence
Rhodamine B
Rhodamine
Cite
Citations (0)
Rhodamine B solution was photocatalytically degradated by ZnO film.The effects of pH of rhodamine B solution,initial concentration,H2O2,layers of the films,and illuminative time on the degradation rate were studied to determine the optimal parameters of degrading rhodamine B by ZnO films.The results indicated that the acid environment could enhance the photocatalytical activity of ZnO film;the low initial concentration of rhodamine B could accelerate the degradation speed;H2O2 could improve the degradation rate of rhodamine B;the degradation rate of three layer membrane was higher than that of single membrane for the rhodamine B.The degradation rate of rhodamine B reached 99.6% when the H2O2 was placed into 35 mL 5 mg/L rhodamine B with pH 1.46 and illuminated for 60 min by ultraviolet.
Rhodamine B
Degradation
Rhodamine
Ultraviolet
Cite
Citations (0)
The use of the rhodamine B as fluorescent tracer in hydrology ask the question of its possible toxic effects in the environment. This study aspire to specify and to complete the results of the former works by the successive examinations of the activity of the rhodamine B in regard to the "daphnies test", its DL50 on the rat and on the mouse, and its cutaneous tolerance. The obtained results confirm the former remarks and express that the solutions of the rhodamine B show any more immediate risks as soon as they appear no more coloured (higher dilutions 1.10(-7)). However it remains to evaluate its long-term carcenogenic activity.
Rhodamine B
Rhodamine
TRACER
Serial dilution
Cite
Citations (56)
Research has been carried out on the degradation of Rhodamine B dye with TiO2 as a catalyst using the photosonolysis method. The purpose of this study was to determine the optimum time and optimum mass of the TiO2 catalyst used to degrade rhodamine B. The results of the percentage degradation of rhodamine B were obtained from the absorbance value measured using a UV-Vis spectrophotometer. The maximum wavelength of rhodamine B obtained from the measurement of the UV-Vis spectrophotometer is 553.8 nm. The results showed that the optimum time to degrade rhodamine B was 210 minutes with a degradation percentage of 95.39%. On the effect of increasing the mass of TiO2 catalyst, the optimum mass of TiO2 is 0.05 grams with a degradation percentage of 93.44%.
Rhodamine B
Absorbance
Rhodamine
Degradation
Cite
Citations (0)
Rhodamine B
Rhodamine
Cite
Citations (3)
Rhodamine B
Rhodamine
Cartridge
TRACER
Cite
Citations (20)
Understanding of the TiO2-assisted phototransformations observed for fundamentally important derivatives of Rhodamine B is expected to bring consistent and eventually comprehensive knowledge on behavior of this dye. The photocatalytic transformations of Rhodamine B in solution irradiated with visible light embrace an N-deethylation process eventually forming Rhodamine-110 rather than degradation of the chromophore. The N-deethylation of Rhodamine B was studied in solution and for the first time in the solid state. In this work, the influence of the wavelength of incident light on the photocatalytic processes involving Rhodamine dyes, is presented. The results indicate that the selection of wavelength is crucial to govern the pathway of RhB degradation. The N-deethylation process does not require reactive oxygen species, as assumed in literature, but the photoinduced electron transfer between the adsorbed RhB molecule and the TiO2 support, followed by radical transformations of the dye, plays a key role.
Rhodamine B
Rhodamine
Chromophore
Degradation
Visible spectrum
Cite
Citations (33)
Abstract This study showed that the oxidation of rhodamine B by the Fenton process is a very fast method because the reaction takes place within the first 20 minutes. The mixture of Fe 2+ and H 2 O 2 produces hydroxide radicals responsible for the degradation of rhodamine B. The study of pH influence on the rhodamine B oxidation reveals that for maximum oxidation of rhodamine B, the pH must be less than or equal to 2. For pH > 2, there is a decrease in rhodamine B oxidation. This is due to side reactions that occur if the concentration of Fe 2+ is high. This reduces the amount of oxidized rhodamine B. We note that the oxidation of rhodamine B is faster for low concentrations than for high concentrations of rhodamine B. According to our results, for a maximum oxidation of 5 mg / L of rhodamine, it takes 8.4.10 −4 mg / L of Fe 2+ , 3.10 −3 M of H 2 O 2 and pH = 2. This work also showed that the presence of inorganic ions strongly slows down the rate of degradation of rhodamine in the following order: Cl − ˂ NO 3 − ˂ SO 4 2− ˂ PO 4 3 − .
Rhodamine B
Rhodamine
Degradation
Cite
Citations (0)
In this work,some derivatives of Rhodamine B,in which a long hydrocarbon chain compound is included,were studied.Their flurorescence behaviors in various surfactant solutionswere studied carefully.It was found that the long hydrophobic hydrocarbon chain Rhodamine B is favorable to aggregate to dimers in water solution. and the dimer formed is alsofavorable to dissociate to monomer of Rhodamine B when the critical concentration of micellar formation of surfactant is arrived.Results indicate that the long chain Rhodamine B usedas a fluorescent probe for determination of the properties of microenvironment is more sensitive than that of other Rhodamine B derivatives.
Rhodamine B
Rhodamine
Cite
Citations (0)