Understanding the adsorption behavior of surface active molecules on ZnO nanostructures by experimental and first-principles calculations

2015 ◽  
Vol 17 (45) ◽  
pp. 30450-30460 ◽  
Author(s):  
Baljinder Singh ◽  
Satvinder Singh ◽  
Janpreet Singh ◽  
G. S. S. Saini ◽  
D. S. Mehta ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Sodium Dodecyl Sulphate ◽  
First Principles ◽  
Chemical Method ◽  
Sodium Dodecyl ◽  
Tween 80 ◽  
Zno Nanostructures ◽  
First Principles Calculations ◽  
Surface Active ◽  
Triton X

Zinc oxide (ZnO) nanostructures with different morphologies are prepared in the presence of surface active molecules such as sodium dodecyl sulphate (SDS), Tween 80 and Triton X-100 by a chemical method.

scholarly journals Alkylresorcinols in rye (Secale cereale L.) caryopses. III. Application of detergents for extraction of proteins and alkylresorcinols

2015 ◽  
Vol 45 (1–2) ◽  
pp. 33-43
Author(s):  
W. Mejbaum-Katzenellenbogen ◽  
J. Łomako ◽  
W. Łomako
Keyword(s):  
Secale Cereale ◽  
Sodium Dodecyl Sulphate ◽  
Sodium Dodecyl ◽  
Tween 80 ◽  
Secale Cereale L ◽  
Triton X

In the work here described sodium dodecyl sulphate solutions (SDS), tween 80 and triton X 100 were used for isolation of proteins and 5-n-alkylresorcinols from ground rye grain. It was found that the above named detergents extract different protein and various amounts of alkylresorcin derivatives. The results indicate that 5-n-alkylresorcinols are localized in the membraneous structures of rye caryopses.

Solubilization and immunoprecipitation of 125I-labelled antigens from Plasmodium knowlesi schizont-infected erythrocytes using non-ionic, anionic and zwitterionic detergents

Parasitology ◽  
1984 ◽  
Vol 88 (1) ◽  
pp. 27-36 ◽  
Author(s):  
R. J. Howard ◽  
J. W. Barnwell
Keyword(s):  
Sodium Dodecyl Sulphate ◽  
Gel Electrophoresis ◽  
Plasmodium Knowlesi ◽  
Polyacrylamide Gel Electrophoresis ◽  
Protein A ◽  
Sodium Dodecyl ◽  
Ionic Detergents ◽  
Class A ◽  
Anionic Detergents ◽  
Triton X

SUMMARYPlasmodium knowlesi malaria-infected erythrocytes were radio-iodinated and several non-ionic, anionic and zwitterionic detergents were compared in their capacity to extract the labelled membrane proteins. The use of these detergents for antigen identification was tested by immunoprecipitation, after addition of Triton X-100 to some detergent extracts, using hyperimmune monkey antiserum and protein A-Sepharose. 125I-labelled antigens were specifically immunoprecipitated with all detergents tested, including the anionic detergents sodium dodecyl sulphate (SDS), deoxycholate and cholate; the zwitterions Zwittergent-312 and -314, CHAPS and Empigen BB, as well as several non-ionic detergents. The SDS-polyacrylamide gel electrophoresis patterns of 125I-labelled antigens varied after extraction with different detergents, there being no consistent pattern for detergents of a particular class. A total of 14 125I-labelled antigens were identified, 11 of them using Triton X-100. Some minor antigens identified with Triton X-100 were immunoprecipitated in greater amount after extraction in other detergents. Most importantly, two antigens Mr 200000 and 180000 were detected only after extraction with deoxycholate or SDS.

The outer membrane of Haemophilus influenzae type b: cell envelope associations of major proteins

1983 ◽  
Vol 29 (2) ◽  
pp. 280-287 ◽  
Author(s):  
J. W. Coulton ◽  
D. T. F. Wan
Keyword(s):  
Molecular Weight ◽  
Sodium Dodecyl Sulphate ◽  
Cell Envelope ◽  
Sodium Dodecyl ◽  
Haemophilus Influenzae Type ◽  
Major Protein ◽  
Haemophilus Influenzae Type B ◽  
Type B ◽  
Molecular Weights ◽  
Triton X

Membrane proteins fom the cell envelope of Haemophilus influenzae type b ATCC 9795 were examined by sodium dodecyl sulphate – polyacrylamide gel electrophoresis. When envelopes were extracted with a phosphate-based buffer containing 2% Triton X-100, a major protein of molecular weight 43 000 was detected in fractions containing cytoplasmic membrane proteins. The cell wall material which was Triton X-100 insoluble contained six major proteins of molecular weights 46 000, 40 000, 36 000, 30 000, 27 000, and 16 000. One of these proteins showed a shift in molecular weight from 27 000 to 36 000 when it was heated over a temperature range from 50 °C to 100 °C in buffer containing 2% sodium dodecyl sulphate, 5% 2-mercaptoethanol. This alteration in mobility could be demonstrated either by the membrane-bound form of the protein or by a detergent-soluble form of the protein. Enriched preparations of the 36 000 molecular weight form were obtained by a series of purification steps. Extraction of the Triton X-100 insoluble material with buffer containing 2% Triton X-100, 5.0 mM EDTA yielded chiefly one major protein molecular weight 30 000 and many minor protein species. Pretreatment of the Triton X-100 insoluble fraction with lysozyme followed by extraction with buffer containing 2% Triton X-100, 5.0 mM EDTA released two proteins of molecular weights 16 000 and 27 000 and few minor proteins. By these operational manipulations, the proteins of molecular weights 16 000 and 27 000 may be considered as peptidoglycan-associated proteins.

scholarly journals Oil sludge washing with surfactants and co-solvents: oil recovery from different types of oil sludges

2020 ◽  
Author(s):  
Diego Ramirez ◽  
Liz J. Shaw ◽  
Chris D. Collins
Keyword(s):  
Oil Recovery ◽  
Sodium Dodecyl ◽  
Tween 80 ◽  
Selective Extraction ◽  
Oil Sludge ◽  
High Effect ◽  
Recovery Techniques ◽  
Different Types ◽  
Triton X ◽  
Different Sources

Abstract Different physicochemical and biological treatments have been used to treat oil sludges, and oil recovery techniques are preferred such as oil sludge washing (OSW) with surfactants and co-solvents. Toluene is commonly used as co-solvent, but it is non-benign to the environment. This study tested alternative co-solvents (n-pentane, n-hexane, cyclohexane, and isooctane) at 1:1 and 2:1 C/OS (co-solvent to oil sludge ratio). Also, this study evaluated the effect on the oil recovery rate (ORR) of three main parameters in the washing: type, concentration, and application ratio (S/OS) of surfactants to oil sludges. To date, no study has assessed these parameters in the washing of oil sludges from different sources. Four types of oil sludges and five surfactants (Triton X-100 and X-114, Tween 80, sodium dodecyl sulphate (SDS), and rhamnolipid) were used. The results showed that cyclohexane had high ORR and could be used instead of toluene because it is more benign to the environment. The S/OS ratio had a high effect on the ORR and depended on the type of oil sludge. Rhamnolipid, Triton X-100, and Triton X-114 had the highest oil recovery rates (40 – 70%). In addition, it was found that the surfactant concentration had no effect on the ORR. Consequently, the addition of surfactant was not significantly different compared to the washing with no surfactants, except for one sludge. The use of the surfactant in the washing solution can help in the selective extraction of specific oil hydrocarbon fractions in the recovered oil to assess its potential reuse as fuel. Further recommendations were given to improve the OSW process.

Metal-free synthesis of polysubstituted pyrroles using surfactants in aqueous medium

2017 ◽  
Vol 19 (22) ◽  
pp. 5385-5389 ◽  
Author(s):  
Amrendra Kumar ◽  
Ramanand Ramanand ◽  
Narender Tadigoppula
Keyword(s):  
Aqueous Medium ◽  
Sodium Dodecyl Sulphate ◽  
Room Temperature ◽  
Sodium Dodecyl ◽  
Pyrrole Derivatives ◽  
Metal Free ◽  
Triton X

An efficient and metal-free method has been developed for the synthesis of polysubstituted pyrrole derivatives with combination of sodium dodecyl sulphate (SDS) and Triton X-100 surfactants using water as a solvent at room temperature in 2–6 h and under microwave conditions (10 min) with good to excellent yields.

scholarly journals Protein chromatography on adsorbents with hydrophobic and ionic groups. Purification of human erythrocyte glycophorin

1977 ◽  
Vol 163 (2) ◽  
pp. 397-400 ◽  
Author(s):  
R J Simmonds ◽  
R J Yon
Keyword(s):  
Sodium Dodecyl Sulphate ◽  
Human Erythrocyte ◽  
Sodium Dodecyl ◽  
Erythrocyte Ghosts ◽  
Electrophoretic Band ◽  
Protein Chromatography ◽  
Ionic Groups ◽  
A Subunit ◽  
Triton X

Human erythrocyte glycophorin was purified rapidly by (a) chromatography of a Triton X-100 extract of erythrocyte ‘ghosts’ on N-(3-carboxypropionyl)aminodecyl-Sepharose in buffers containing Triton X-100 or sodium dodecyl sulphate, or (b) chromatography of whole ‘ghosts’, solubilized in sodium dodecyl sulphate, on dodecyl-Sepharose, in buffers containing sodium dodecyl sulphate. The products contained 85-95% glycophorin (electrophoretic band PAS-1) and the major contaminants were glycoproteins PAS-2 (possibly a subunit of glycophorin) and PAS-3.

Size-dependent piezoelectricity in zinc oxide nanofilms from first-principles calculations

2007 ◽  
Vol 90 (3) ◽  
pp. 033108 ◽  
Author(s):  
Chun Li ◽  
Wanlin Guo ◽  
Yong Kong ◽  
Huajian Gao
Keyword(s):  
Zinc Oxide ◽  
First Principles ◽  
First Principles Calculations ◽  
Size Dependent

scholarly journals The molecular size of N-methylglutamate dehydrogenase of Pseudomonas aminovorans

1977 ◽  
Vol 167 (2) ◽  
pp. 509-512 ◽  
Author(s):  
C W Bamforth ◽  
P J Large
Keyword(s):  
Molecular Weight ◽  
Sodium Dodecyl Sulphate ◽  
Gel Electrophoresis ◽  
Specific Activity ◽  
Polyacrylamide Gel Electrophoresis ◽  
Protein A ◽  
Sodium Dodecyl ◽  
Molecular Size ◽  
Partial Specific Volume ◽  
Triton X

N-Methylglutamate dehydrogenase, purified to a specific activity of 0.29 unit/mg of protein, gave one band on sodium dodecyl sulphate/polyacrylamide-gel electrophoresis, corresponding to a molecular weight of 130 000. Enzyme-Triton complexes were found to have a partial specific volume of 0.73 cm3/g, suggesting that the protein binds less than 0.1 g of Triton/g of protein. A molecular weight for the intact enzyme in the presence of 1% (w/v) Triton X-100 of 550 000 suggested that the enzyme may be a tetramer.

Flotation Deinking of Xerographic and Laser-Printed Paper: Influence of Surface-Active Substances

2011 ◽  
Vol 287-290 ◽  
pp. 3028-3031
Author(s):  
Panitnad Chandranupap ◽  
Pravitra Chandranupap ◽  
Pantharee Kongsat
Keyword(s):  
Sodium Dodecyl ◽  
Ionic Surfactant ◽  
Paper Recycling ◽  
Recycled Paper ◽  
Burst Strength ◽  
Surface Active ◽  
Virgin Pulp ◽  
Triton X ◽  
Active Substances

In present time, recycled paper from xerographic and laser-printed wastepaper plays an important role as alternatives to paper from virgin pulp because of their good pulp quality and high amount of wastepaper each year. This type of paper is classified as Mixed Office Wastepaper (MOW). The xerographic and laser-printed inks are usually called “toner” which its formulation is different from conventional ink. This work aimed to investigate paper recycling by flotation deinking process. The flotation experiments were conducted using SDS (sodium dodecyl sulfate) and Triton X-100 (C14H22O(C2H4O)n). The experimental results demonstrated that ink removal was more efficient with the use of non-ionic surfactant (Triton X-100) than anionic surfactant (SDS). The efficiency of ink removal was determined by ERIC and the pulp’s brightness. In addition, the quality of de-inked pulps was evaluated by pulp physical properties such as burst strength, tear strength and tensile strength.

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