Category: 10510-54-0

Schmitz-Moormann, Paul published the artcileTissue staining by basic dyes. I. Influence of the pH of the staining solution and of the dye-affinity on the adsorption of the dye, HPLC of Formula: 10510-54-0, the publication is Histochemie (1968), 16(1), 23-35, database is CAplus and MEDLINE.

Diluted heat-coagulated egg-white, citrated defibrinated beef-serum, and minced beef muscle were washed with alc., acetone, and ether, dried at 50¡ã and ground. Dye adsorption on the protein powders and on Sephadex, G-25 fine, was determined by shaking 1 g. dry protein or Sephadex with 20 ml. buffered 10-4M dye for 1 hr., leaving at room temperature overnight, shaking again, and centrifuging. Michaelis buffers, ionic strength 0.1, 0.1 N HCl, and N HCl were used. Methylene blue, toluidine, blue, cresyl fast violet, crystal violet, alcain blue, thioflavine T, and acridine orange were tested. Except for Sephadex, which failed to stain with methylene blue, the 3 protein powders stained minimally at pH 1 and staining increased to a maximum at pH 9. Swelling of proteins was maximal at pH 1, but varied little with pH above pH 2. A chromatog. method was developed in which 10 g. protein or Sephadex was allowed to swell in water overnight, transferred to a chromatographic column, and washed with buffer. Dye (0.01 M) diluted with 1 volume buffer was applied and the column developed with buffer. The fraction (25 ml.) in which the peak dye concentration appeared varied with pH. Plots of the number of the peak fractions against pH gave a measure of the affinity of various dyes. All dyes were retarded with increasing pH. The order of affinity was crystal violet > acridine orange > toluidine blue > methylene blue ¡Ö thioflavine T. With Sephadex there was no dependence on pH and the order of dye affinity was reversed.

Histochemie published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, HPLC of Formula: 10510-54-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Runge, P. K. published the artcileMode-locking of helium-neon lasers with saturable organic dyes, Synthetic Route of 10510-54-0, the publication is Optics Communications (1971), 3(6), 434-6, database is CAplus.

Cresyl Violet, Cresyl Violet Acetate, and Nile Blue A [(0.8-3.3) ¡Á 10-4M in MeOH] acted as saturable absorbers for mode-locking 2 He-Ne lasers (10 and 1.8 m long, resp.) at ¦Ë = 6328 ?. The optical pulse width decreased linearly with increasing pulse energy. The min. pulse width was 220 psec for the 10-m laser (with 2 ¡Á 10-4M Cresyl Violet) at a peak power d. of 2.5 ¡Á 108 W/cm2. The min. power d., at which mode-locking was observed, was 2 ¡Á 105 W/cm2 for the 1.8-m laser. The dye concentration determined the pulse repetition rate of the laser.

Optics Communications published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Synthetic Route of 10510-54-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Kugel, Roger W. published the artcileMetachromasy: the interactions between dyes and polyelectrolytes in aqueous solution, Quality Control of 10510-54-0, the publication is Advances in Chemistry Series (1993), 507-33, database is CAplus.

The literature on metachromasy (the color change in the dye absorption spectrum that occurs when certain cationic dyes interact with anionic polyelectrolytes) is overviewed and two quant. anal. methods for acrylic acid-acrylamide copolymer based on the metachromatic effect are proposed. The color-array method allows for the visual determination of polymer concentration by observing the color of Toluidine Blue O, Cresyl Violet Acetate, or Safranine O at various P/D (polymer acrylate residue to dye mol.) ratios. An abrupt color change is observed at P/D = 1. The complexation-extraction method is based on the removal of the dye Janus Green B from solution by complexation with acrylic acid-acrylamide copolymer followed by extraction with 1,1,2-trichlorotrifluoroethane (Freon) solvent. Typical concentration ranges for both tests were 0-10 ppm polymer (0-7.4 ¡Á 10^-5 M acrylate residue) and 1-6 ¡Á 10^-5 M dye.

Advances in Chemistry Series published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Quality Control of 10510-54-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Green, Floyd J. published the artcilePolychromasia of Cresyl Violet dyes; a chemical explanation of variations in pre-World War II products, Category: catalysis-chemistry, the publication is Stain Technology (1966), 41(4), 223-8, database is CAplus and MEDLINE.

Darrow Red (9-acetylamino-5-aminobenzo[¦Á]phenoxazonium chloride) and its 10-Me derivative, precursors of Cresyl Violet acetate (5,9-diaminobenzo[¦Á]phenoxazonium acetate) and 5,9-diamino-10-methylbenzo[¦Á]phenoxazonium acetate (the compound which duplicates visible absorbance spectra of the violet component of prewar German Cresyl Fast Violet and the current foreign product Cresyl Fast Violet), yielded polychrome products when subjected to alk. hydrolyses. The hydrolyses were accomplished by refluxing 17.5 g. of each acetylated compound with 25 g. NaOH in 250 ml. H₂O. At the end of 1.5 hrs., visible spectra revealed, in each case, the presence of 3 components: the starting material, the deacetylated 9-amino compound (a Cresyl Violet) and the 5-oxo derivative Addnl. refluxing for 6.5 hrs. resulted in a product containing only the deacetylated 9-amino compound and the 5-oxo derivative in approx. equivalent amounts The latter mixture was not altered by addnl. refluxing. Absorbance maximum of compounds resulting from the hydrolysis of the 10-Me derivative of Darrow Red were bathochromic by 4-6 m¦Ì to their counterparts obtained from the hydrolysis of Darrow Red. Minor variations in manufacturing processes can readily affect the properties of these biological stains.

Stain Technology published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Category: catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Barden, Herbert published the artcileAcid fast staining of oxidized neuromelanin and lipofuscin in the human brain, Application of 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, the publication is Journal of Neuropathology and Experimental Neurology (1979), 38(5), 453-62, database is CAplus and MEDLINE.

Acid fast staining of the bleached residuum of substantia nigra neuromelanin and of oxidized inferior olive lipofuscin was demonstrated in paraffin and frozen sections stained with the HOAc-carbol fuchsin method of J. Barbeito-Lopez (1946) and the aldehyde fuchsin method of G. Gomori (1950). Acid fast staining occurred when sections were exposed to a prestain oxidation with KMnO₄ in conjunction with a poststain differentiation with dilute HCl. The acid fast staining with HOAc-carbol fuchsin was differentiable and in contrast to the acid fast staining with aldehyde fuchsin which was nondifferentiable. A possible histochem. basis for differentiable and nondifferentiable acid fast staining was discussed. The identity of the bleached residuum of neuromelanin as lipofuscin also was discussed.

Journal of Neuropathology and Experimental Neurology published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Application of 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Bai, Xiang-Ru published the artcileEnvironmentally Safe Mercury(II) Ions Aided Zero-Background and Ultrasensitive SERS Detection of Dipicolinic Acid, COA of Formula: C18H15N3O3, the publication is Analytical Chemistry (Washington, DC, United States) (2017), 89(19), 10335-10342, database is CAplus and MEDLINE.

Field, reliable, and ultrasensitive detection of dipicolinic acid (DPA), a general biomarker of bacterial spores and especially Bacillus anthracis, is highly desirable but still challenging in the current biometric security emergency response system. Herein the authors report an environmentally safe mercury(II) ions-mediated and competitive coordination interaction based approach for rationally designed surface-enhanced Raman scattering (SERS)-active gold nanoparticles (AuNPs), enabling rapid, ultrasensitive and zero-background detection of DPA without the pretreatment of samples. By competitiveness, these papain-capped gold nanoparticles (P-AuNPs) are induced to undergo controllable aggregation upon the addition of Hg²⁺ ions and DPA with a concentration range (1 nM?8 ¦ÌM), which correspondingly cause quant. changes of SERS intensity of cresyl violet acetate (CVa) conjugated AuNPs. The decreased Raman intensity obtained by subtracting two cases of additives that contain only Hg²⁺ and the mixture of Hg²⁺ and DPA is proportional to the concentration of DPA over a range of 1 nM?8 ¦ÌM (R² = 0.9824), with by far the lowest limit of detection (LOD) of 67.25 pM (0.01 ppb, S/N = 3:1). Of particular significance, mercury(II) ions actually play two roles in the process of measurements: a mediator for two designed competitive ligands (DPA and papain) and also a scavenger for the possibly blended ligands due to the different interaction time between DPA and the interferent with Hg²⁺ ions, which guarantees the interference-free detection of DPA even under real conditions.

Analytical Chemistry (Washington, DC, United States) published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, COA of Formula: C18H15N3O3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Chae, Weon-Sik published the artcileBimodal porous gold opals for molecular sensing, Recommanded Product: 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, the publication is Electronic Materials Letters (2013), 9(6), 783-786, database is CAplus.

We have fabricated bimodal porous gold skeletons by double-templating routes using poly(styrene) colloidal opals as templates. The fabricated gold skeletons show a bimodal pore-size distribution, with small pores within spheres and large pores between spheres. The templated bimodal porous gold skeletons were applied in Raman scattering experiments to study sensing efficiency for probe mols. We found that the bimodal porous gold skeletons showed obvious enhancement of Raman scattering signals vs. that of the unimodal porous gold which only has interstitial pores of several hundred nanometers.

Electronic Materials Letters published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Recommanded Product: 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wabuyele, Musundi B. published the artcileSurface-enhanced Raman scattering molecular nanoprobes, Formula: C18H15N3O3, the publication is Proceedings of SPIE-The International Society for Optical Engineering (2005), 209-215, database is CAplus.

Nanoparticles are increasingly finding a wide application in the biol. studies due to their unique phys. and chem. properties. Colloidal nanoparticles are efficient substrate that exhibit surface-enhanced Raman scattering (SERS) phenomenon by enhancing the scattering cross-sections of conjugated Raman active mols. thus enabling highly sensitive biol. probes. However, biol. and medical applications would require nanoparticles to be conjugated to biomols. A universal approach for conjugation of mercarptoacetic acid-capped silver nanoparticles to biomols. is described. The surface functionalized silver colloids were labeled with a Raman active dye and used for cellular imaging. We also described the use of silver nanoparticle to develop a new class of SERS nanoprobes for mol. recognition and detection of specific nucleic acid sequences.

Proceedings of SPIE-The International Society for Optical Engineering published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C8H15NO, Formula: C18H15N3O3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wabuyele, Musundi B. published the artcileHyperspectral surface-enhanced Raman imaging of labeled silver nanoparticles in single cells, COA of Formula: C18H15N3O3, the publication is Review of Scientific Instruments (2005), 76(6), 063710/1-063710/7, database is CAplus.

We describe the development of an acousto-optic tunable filter (AOTF)-based hyperspectral surface-enhanced Raman imaging (HSERI) system equipped with an intensified charged coupled device and an avalanche photodiode. The AOTF device is a miniature rapid-scanning solid-state device that has no moving parts and can be rapidly tuned (microseconds) either sequentially or randomly, over a wide spectral range between 600 and 900 nm [corresponding to a large relative wave number range (?0-4500 cm^-1)], with respect to a 632.8 nm excitation and can also acquire images at a fairly narrow band of ?7 cm^-1. In this article we describe a confocal surface-enhanced Raman imaging (SERI) system developed in our laboratory that combines hyperspectral imaging capabilities with surface-enhanced Raman scattering (SERS) to identify cellular components with high spatial and temporal resolution The HSERI system’s application to cellular imaging is demonstrated using SERS-labeled nanoparticles in cellular systems.

Review of Scientific Instruments published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C14H23N, COA of Formula: C18H15N3O3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Vo-Dinh, Tuan published the artcileSurface-enhanced Raman scattering for medical diagnostics and biological imaging, Application In Synthesis of 10510-54-0, the publication is Journal of Raman Spectroscopy (2005), 36(6/7), 640-647, database is CAplus.

The authors present recent development and applications of a surface-enhanced Raman scattering (SERS) technol. for use in medical diagnostics and biol. imaging. For medical diagnostics, they use Raman-active dye-labeled DNA gene probes and nanostructured metallic substrates as SERS-active platforms. The surface-enhanced Raman gene probes can be used to detect DNA biotargets (e.g. gene sequences, bacteria and viral DNA) via hybridization to DNA sequences complementary to these probes. The SERS gene probes eliminate the need for radioactive labels and have great potential to provide both sensitivity, selectivity and label multiplexing for DNA sequencing and clin. assays. The authors also describe a hyperspectral surface-enhanced Raman imaging (HSERI) system that combines imaging capabilities with SERS detection to identify cellular components with high spatial and temporal resolution The HSERI system’s application to biol. imaging is demonstrated using Raman dye-labeled silver nanoparticles in cellular systems.

Journal of Raman Spectroscopy published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C4Br2N2O4S, Application In Synthesis of 10510-54-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia