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Masahiro Murakawa - One of the best experts on this subject based on the ideXlab platform.

  • Effects of Indigo Carmine intravenous injection on oxygen reserve index (ORi™) measurement.
    Journal of clinical monitoring and computing, 2017
    Co-Authors: Tsuyoshi Isosu, Keisuke Yoshida, Rieko Oishi, Tsuyoshi Imaizumi, Yuzo Iseki, Norie Sanbe, Yukihiro Ikegami, Shinju Obara, Shin Kurosawa, Masahiro Murakawa
    Abstract:

    To retrospectively investigate the effects of Indigo Carmine intravenous injection on oxygen reserve index (ORi™) in 20 patients who underwent elective gynecologic surgery under general anesthesia. The study subjects were patients who underwent elective gynecologic surgery under general anesthesia between April 2016 and January 2017, and were administered a 5-ml intravenous injection of 0.4% Indigo Carmine for clinical purposes during surgery with ORi monitoring. Changes in ORi within 20 min after Indigo Carmine injection were observed. A relevant decrease in ORi was defined as ≥ 10% reduction in ORi from pre-injection level. ORi rapidly decreased after Indigo Carmine intravenous injection in all patients. In 10 of 19 patients, ORi decreased to 0 after Indigo Carmine injection. The median lowest value of ORi was 0 (range 0–0.16) and the median time to reach the lowest value of ORi was 2 min (range 1–4 min) after injection. ORi values returned to pre-injection levels within 20 min in 13 of 19 patients, and the median time to return to pre-injection levels was 10 min (range 6–16 min) after injection. During ORi monitoring it is necessary to consider the rapid reduction in ORi after intravenous injection of Indigo Carmine.

  • Effects of Indigo Carmine intravenous injection on noninvasive and continuous total hemoglobin measurement with using the Revision L sensor.
    Journal of clinical monitoring and computing, 2016
    Co-Authors: Tsuyoshi Isosu, Tsuyoshi Imaizumi, Yuzo Iseki, Yukihiro Ikegami, Shinju Obara, Shin Kurosawa, Takahiro Hakozaki, Midori Mogami, Satoshi Ohashi, Masahiro Murakawa
    Abstract:

    The effects of intravenous injection of Indigo Carmine on noninvasive and continuous total hemoglobin (SpHb) measurement were retrospectively evaluated with the Revision L sensor. The subjects were 18 patients who underwent elective gynecologic surgery under general anesthesia. During surgery, 5 mL of 0.4 % Indigo Carmine was injected intravenously, and changes in SpHb concentrations between before and after the injection were evaluated. The mean age was 52.4 ± 12.8 years. Before injection, the median SpHb level was 10.1 (range, 6.8-13.4) g/dL. The results demonstrated no change in SpHb concentration between before and after Indigo Carmine injection as detected by the Revision L sensor. SpHb measurements as determined with the Revision L sensor were not affected, even after the intravenous injection of Indigo Carmine.

  • Effects of Indigo Carmine intravenous injection on noninvasive and continuous total hemoglobin measurement
    Journal of clinical monitoring and computing, 2015
    Co-Authors: Tsuyoshi Isosu, Rieko Oishi, Tsuyoshi Imaizumi, Yukihiro Ikegami, Shinju Obara, Shin Kurosawa, Tomohiko Satoh, Takahiro Hakozaki, Masahiro Murakawa
    Abstract:

    The effects of an intravenous injection of Indigo Carmine on noninvasive and continuous total hemoglobin (SpHb) measurement were retrospectively evaluated. The subjects were 21 patients who underwent elective gynecologic surgery under general anesthesia. During surgery, 5 mL of 0.4 % Indigo Carmine was intravenously injected, and subsequent changes in SpHb concentrations were evaluated. The results demonstrate that the pre-injection SpHb level was 10 g/dL, and the minimum post-injection SpHb level was 8.3 g/dL. The amount of decrease was 1.8 g/dL. The time to reach the minimum value was 4 min, and the time to return to the pre-injection value was 15 min. The decrease in SpHb was greater in the group with a perfusion index (PI)   1.4. The assessment of SpHb after an intravenous injection of Indigo Carmine necessitates caution.

Jianhong Liu - One of the best experts on this subject based on the ideXlab platform.

  • Studies on the mechanism of Indigo Carmine removal by solvent sublation.
    Journal of colloid and interface science, 2005
    Co-Authors: Xueli Zhang, Jie Tang, Bo Wei, Jianhong Liu
    Abstract:

    Abstract Indigo Carmine (C 16 H 8 N 2 Na 2 O 8 S 2 ), an anionic dye, was removed from aqueous solution by solvent sublation of Indigo Carmine–cetyltrimethylammonium bromide (CTAB) complex (sublate) into 2-octanol. A stoichiometric amount of surfactant (surfactant:dye = 2:1) was demonstrated to be able to remove over 93% IC from the aqueous solution in 5 min. The apparent activation energy of attachment of the sublate to bubbles was calculated as 1.3 kJ/mol. Parameters were considered. At the same time, on the base of the complete transport mechanism, a mathematical model for the dye–surfactant complexation was obtained. Furthermore, the simulation of the mathematical and experimental data was made with good results.

  • The Removal of Indigo Carmine from Water by Solvent Sublation
    Separation Science and Technology, 2005
    Co-Authors: Jizhen Liu, Jie Tang, Bo Wei, Jianhong Liu
    Abstract:

    Abstract Indigo Carmine (IC, C16H8N2Na2O8S2), an anonic dye, was removed from an aqueous solution by solvent sublation of Indigo Carmine—Cetyltrimethyl Ammonium Bromide (CAB) complex (sublate) into 2‐octanol. A stoichiometric amount of surfactant (surfactant: dye=2∶1) was the most effective for the removal, with over 93% IC removed from the aqueous solution in 5 min by solvent sublation. The removal rate was somewhat enhanced by higher air flow rates and almost independent of the volume of the organic solvent floated on the top of the aqueous column. The effects of electrolytes (e.g., NaCl), nonhydrophobic organics (e.g., ethanol), and pH of the solution upon the process were studied. The solvent sublation process followed first‐order kinetics. A characteristic parameter, apparent activation energy of attachment of the sublate to bubbles, was estimated at a value of 1.3 kJ/mol. This work was supported by the Natural Science Foundation of Guangdong Province (Grant No. 04300883).

Louis-charles De Menorval - One of the best experts on this subject based on the ideXlab platform.

  • Photocatalytic decolourization of Indigo Carmine on 1,10-phenanthrolinium intercalated bentonite under UV-B and solar irradiation
    Journal of Photochemistry and Photobiology A: Chemistry, 2010
    Co-Authors: Abdelhadi Bentouami, Mohand Said Ouali, Louis-charles De Menorval
    Abstract:

    In the present work, organophilic clay was prepared and characterized by XRD, FT-IR, TGA, 13C MAS NMR and UV-vis DRS. The obtained material was investigated as photocatalyst on photo-decolourization of Indigo Carmine under UV-B and solar irradiation. The decolourization capacity of the obtained material against Indigo Carmine was very low. Besides, the kinetic photo-decolourization data under UV-B and solar irradiation fitted well the pseudo-first order and Langmuir-Hinshelwood kinetic models. The photodecolourization rate was found better under solar than UV-B irradiation. A total colour removal was obtained at natural pH after 160 min of solar irradiation of a 10mg L−1 Indigo Carmine solution. The prepared material was used four times with practically the same decolourization efficiency.

  • Photocatalytic decolourization of Indigo Carmine on 1,10-phenanthrolinium intercalated bentonite under UV-B and solar irradiation
    Journal of Photochemistry and Photobiology A: Chemistry, 2010
    Co-Authors: Abdelhadi Bentouami, Mohand Said Ouali, Louis-charles De Menorval
    Abstract:

    International audienceIn the present work, organophilic clay was prepared and characterized by XRD, FT-IR, TGA, 13C MAS NMR and UV-vis DRS. The obtained material was investigated as photocatalyst on photo-decolourization of Indigo Carmine under UV-B and solar irradiation. The decolourization capacity of the obtained material against Indigo Carmine was very low. Besides, the kinetic photo-decolourization data under UV-B and solar irradiation fitted well the pseudo-first order and Langmuir-Hinshelwood kinetic models. The photodecolourization rate was found better under solar than UV-B irradiation. A total colour removal was obtained at natural pH after 160 min of solar irradiation of a 10mg L−1 Indigo Carmine solution. The prepared material was used four times with practically the same decolourization efficiency

Mats Jonsson - One of the best experts on this subject based on the ideXlab platform.

Tsuyoshi Isosu - One of the best experts on this subject based on the ideXlab platform.

  • Effects of Indigo Carmine intravenous injection on oxygen reserve index (ORi™) measurement.
    Journal of clinical monitoring and computing, 2017
    Co-Authors: Tsuyoshi Isosu, Keisuke Yoshida, Rieko Oishi, Tsuyoshi Imaizumi, Yuzo Iseki, Norie Sanbe, Yukihiro Ikegami, Shinju Obara, Shin Kurosawa, Masahiro Murakawa
    Abstract:

    To retrospectively investigate the effects of Indigo Carmine intravenous injection on oxygen reserve index (ORi™) in 20 patients who underwent elective gynecologic surgery under general anesthesia. The study subjects were patients who underwent elective gynecologic surgery under general anesthesia between April 2016 and January 2017, and were administered a 5-ml intravenous injection of 0.4% Indigo Carmine for clinical purposes during surgery with ORi monitoring. Changes in ORi within 20 min after Indigo Carmine injection were observed. A relevant decrease in ORi was defined as ≥ 10% reduction in ORi from pre-injection level. ORi rapidly decreased after Indigo Carmine intravenous injection in all patients. In 10 of 19 patients, ORi decreased to 0 after Indigo Carmine injection. The median lowest value of ORi was 0 (range 0–0.16) and the median time to reach the lowest value of ORi was 2 min (range 1–4 min) after injection. ORi values returned to pre-injection levels within 20 min in 13 of 19 patients, and the median time to return to pre-injection levels was 10 min (range 6–16 min) after injection. During ORi monitoring it is necessary to consider the rapid reduction in ORi after intravenous injection of Indigo Carmine.

  • Effects of Indigo Carmine intravenous injection on noninvasive and continuous total hemoglobin measurement with using the Revision L sensor.
    Journal of clinical monitoring and computing, 2016
    Co-Authors: Tsuyoshi Isosu, Tsuyoshi Imaizumi, Yuzo Iseki, Yukihiro Ikegami, Shinju Obara, Shin Kurosawa, Takahiro Hakozaki, Midori Mogami, Satoshi Ohashi, Masahiro Murakawa
    Abstract:

    The effects of intravenous injection of Indigo Carmine on noninvasive and continuous total hemoglobin (SpHb) measurement were retrospectively evaluated with the Revision L sensor. The subjects were 18 patients who underwent elective gynecologic surgery under general anesthesia. During surgery, 5 mL of 0.4 % Indigo Carmine was injected intravenously, and changes in SpHb concentrations between before and after the injection were evaluated. The mean age was 52.4 ± 12.8 years. Before injection, the median SpHb level was 10.1 (range, 6.8-13.4) g/dL. The results demonstrated no change in SpHb concentration between before and after Indigo Carmine injection as detected by the Revision L sensor. SpHb measurements as determined with the Revision L sensor were not affected, even after the intravenous injection of Indigo Carmine.

  • Effects of Indigo Carmine intravenous injection on noninvasive and continuous total hemoglobin measurement
    Journal of clinical monitoring and computing, 2015
    Co-Authors: Tsuyoshi Isosu, Rieko Oishi, Tsuyoshi Imaizumi, Yukihiro Ikegami, Shinju Obara, Shin Kurosawa, Tomohiko Satoh, Takahiro Hakozaki, Masahiro Murakawa
    Abstract:

    The effects of an intravenous injection of Indigo Carmine on noninvasive and continuous total hemoglobin (SpHb) measurement were retrospectively evaluated. The subjects were 21 patients who underwent elective gynecologic surgery under general anesthesia. During surgery, 5 mL of 0.4 % Indigo Carmine was intravenously injected, and subsequent changes in SpHb concentrations were evaluated. The results demonstrate that the pre-injection SpHb level was 10 g/dL, and the minimum post-injection SpHb level was 8.3 g/dL. The amount of decrease was 1.8 g/dL. The time to reach the minimum value was 4 min, and the time to return to the pre-injection value was 15 min. The decrease in SpHb was greater in the group with a perfusion index (PI)   1.4. The assessment of SpHb after an intravenous injection of Indigo Carmine necessitates caution.