A NOTE ON THE STOIGHIOMETRY OF ADSORPTION OF ANIONS BY LYSOZYME

1955 ◽  
Vol 33 (1) ◽  
pp. 651-653
Author(s):  
J. Ross Colvin
Keyword(s):  
Methyl Orange ◽  
Picric Acid ◽  
Sulphonic Acid ◽  
Acetate Buffer ◽  
Orange Ii ◽  
Necessary And Sufficient

Ten adsorbed anions of monovalent methyl orange, Orange II, or picric acid are necessary and sufficient to precipitate one lysozyme molecule at pH 5.5 in 0.05 M acetate buffer at 32°, whereas only five of divalent 2,4-dinitro-1-naphthol-7-sulphonic acid (flavianic acid) are required. These results are consistent with a hypothesis of interacting hydration effects.

A NOTE ON THE STOIGHIOMETRY OF ADSORPTION OF ANIONS BY LYSOZYME

1955 ◽  
Vol 33 (4) ◽  
pp. 651-653 ◽  
Author(s):  
J. Ross Colvin
Keyword(s):  
Methyl Orange ◽  
Picric Acid ◽  
Sulphonic Acid ◽  
Acetate Buffer ◽  
Orange Ii ◽  
Necessary And Sufficient

Ten adsorbed anions of monovalent methyl orange, Orange II, or picric acid are necessary and sufficient to precipitate one lysozyme molecule at pH 5.5 in 0.05 M acetate buffer at 32°, whereas only five of divalent 2,4-dinitro-1-naphthol-7-sulphonic acid (flavianic acid) are required. These results are consistent with a hypothesis of interacting hydration effects.

ADSORPTION OF ORANGE II BY CYTOCHROME c AND RIBONUCLEASE

1954 ◽  
Vol 32 (3) ◽  
pp. 184-188 ◽  
Author(s):  
J. Ross Colvin
Keyword(s):  
Methyl Orange ◽  
Cytochrome C ◽  
Adsorption Isotherms ◽  
Acetate Buffer ◽  
Orange Ii

The adsorption isotherms of Orange II on cytochrome c and ribonuclease at pH 5.5 in 0.05 M acetate buffer are sigmoid. They may be interpreted by a previously described theory of interacting hydration effects. Adsorption of methyl orange or sodium flavianate by either protein was negligible.

ADSORPTION OF ORANGE II BY CYTOCHROME c AND RIBONUCLEASE

1954 ◽  
Vol 32 (1) ◽  
pp. 184-188
Author(s):  
J. Ross Colvin
Keyword(s):  
Methyl Orange ◽  
Cytochrome C ◽  
Adsorption Isotherms ◽  
Acetate Buffer ◽  
Orange Ii

The adsorption isotherms of Orange II on cytochrome c and ribonuclease at pH 5.5 in 0.05 M acetate buffer are sigmoid. They may be interpreted by a previously described theory of interacting hydration effects. Adsorption of methyl orange or sodium flavianate by either protein was negligible.

Polycations and Their Complexes

1977 ◽  
Vol 47 (8) ◽  
pp. 530-534 ◽  
Author(s):  
B. Courtney ◽  
J. B. Lawton
Keyword(s):  
Free Energy ◽  
Methyl Orange ◽  
Diffuse Reflectance ◽  
Color Change ◽  
Reflectance Spectra ◽  
Orange Ii ◽  
Alternative Treatments ◽  
Anionic Dyes ◽  
Diffuse Reflectance Spectra ◽  
Diethylaminoethyl Cellulose

Free-energy changes have been determined for the binding of the anionic dyes Orange II and Methyl Orange to diethylaminoethyl cellulose and triethylaminoethyl cellulose. These polycations resemble wool and other natural polycations in some respects. It is shown, however, that the Gilbert-Rideal theory is not satisfactory for cellulosic polycations, and alternative treatments are given. It was found that the order of binding of some simple anions was I- > Br- > Cl-. The sulphate ion behaved anomalously and appeared to be sensitive to changes in the intersite distance. Diffuse reflectance spectra showed evidence of a metachromatic color change in the spectrum of the bound dyes.

Synthesis of Polythiophene Nanoparticles by Microemulsion Polymerization for Photocatalysis

2011 ◽  
Vol 399-401 ◽  
pp. 1312-1319 ◽  
Author(s):  
Yang Cheng ◽  
Jun Wang ◽  
Yun Cheng Bao ◽  
Ya Li Ma ◽  
Guang Hui Wang
Keyword(s):  
Methyl Orange ◽  
Surface Area ◽  
Uv Irradiation ◽  
Conjugated Polymer ◽  
Organic Dyes ◽  
Orange Ii ◽  
Microemulsion Polymerization ◽  
Before And After ◽  
Photocatalytic Reactions ◽  
20 Nm

Abstract. Polythiophene nanoparticles prepared by W/O microemulsion method were found to be photocatalytically active for degradation of Orange II dye and methyl Orange. During the photodegradation of Orange II and Methyl Orange as organic dyes in UV/H2O2and UV irradiation systems using polythiophene nanoparticles as photocatalyst, it is exhibiting significant photocatalytic activity towards to double dyes in UV and UV/H2O2system. the diameter of spherical polymer nanoparticles is 100±20 nm which was characterized by TEM with good dispersity. Furthermore, its photocatalytic efficiency for degradation of Orange II and Methyl Orange under UV irradiation is 2.54 and 1.95 times higher than normal polythiophene composites relatively. According to the testment by Accelerated Surface Area and Porosimetry System, The true cause lay in the fact that the specific surface area of Polythiophene nanoparticles is 106.6 m2/g compared to normal Polythiophene is 24.2 m2/g, This conjugated polymer characterized by FTIR spectroscopies before and after photocatalytic reactions shows reliable chemical stability. In addition, it held excellent recovery ability and kept up their catalytic activity with indistinctive drop after six repeated utilization.

Colorful and transparent poly(vinyl alcohol) composite films filled with layered zinc hydroxide salts, intercalated with anionic orange azo dyes (methyl orange and orange II)

2012 ◽  
Vol 134 (1) ◽  
pp. 392-398 ◽  
Author(s):  
Marlon Luiz Neves da Silva ◽  
Rafael Marangoni ◽  
Ana Cristina Trindade Cursino ◽  
Wido Herwig Schreiner ◽  
Fernando Wypych
Keyword(s):  
Methyl Orange ◽  
Azo Dyes ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Zinc Hydroxide ◽  
Orange Ii ◽  
Layered Zinc Hydroxide
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