Effect of Inorganic Additives on Solutions of Nonionic Surfactants III: CMC's and Surface Properties

1976 ◽  
Vol 65 (7) ◽  
pp. 975-978 ◽  
Author(s):  
Hans Schott ◽  
Suk Kyu Han
Keyword(s):  
Surface Properties ◽  
Nonionic Surfactants

Surface properties in binary mixtures of aerosol OT and nonionic surfactants

1985 ◽  
Vol 62 (12) ◽  
pp. 1709-1715 ◽  
Author(s):  
Jung-Hung Chang ◽  
Yasushi Muto ◽  
Kunio Esumi ◽  
Kenjiro Meguro
Keyword(s):  
Surface Properties ◽  
Binary Mixtures ◽  
Nonionic Surfactants ◽  
Aerosol Ot

Synthesis of New Surfactants from Lauramidopropyl Betaine and Surface Activity Evaluation

2019 ◽  
Vol 953 ◽  
pp. 153-159 ◽  
Author(s):  
Qiao Na Liu ◽  
An Guo Yang ◽  
Seng Peng ◽  
Rong Jun Zhang ◽  
Jin Ling Li ◽  
...  
Keyword(s):  
Surface Tension ◽  
Critical Micelle Concentration ◽  
Surface Properties ◽  
Surface Activity ◽  
Nonionic Surfactants ◽  
Functional Group ◽  
Raw Materials ◽  
Foaming Ability ◽  
Molar Ratios ◽  
Main Component

The ampholytic surfactant lauramidopropyl betaine (LAB) has excellent properties and very low irritation. It has good compatibility and can be used together with cationic, anionic and nonionic surfactants. In this paper, new surfactants were synthesized by using LAB as the main component and the molar ratios of LAB to formaldehyde were 1:1, 1:2, 1:3 and 1:4, respectively. The new functional group hydroxymethyl was introduced into the LAB, and the effect of hydroxymethyl on the properties of raw materials was discussed. And the surface properties were studied, including surface tension, critical micelle concentration and foaming ability. Finally, it can be concluded that the introduction of methylol groups improves the performance of the prepared new surfactants in certain properties.

Biological and Surface Properties of C-Type Virus Particles Produced by Novikoff Ascites Hepatoma Cells

1977 ◽  
Vol 35 ◽  
pp. 388-389
Author(s):  
D.C. Hixson ◽  
J.C. Chan ◽  
J.M. Bowen ◽  
E.F. Walborg
Keyword(s):  
Surface Properties ◽  
Ricinus Communis ◽  
Rat Kidney ◽  
Leukemia Virus ◽  
Viral Envelope ◽  
Virus Particles ◽  
Chemically Induced ◽  
Sarcoma Virus ◽  
Hepatocarcinoma Cells ◽  
Type C

Several years ago Karasaki (1) reported the production of type C virus particles by Novikoff ascites hepatocarcinoma cells. More recently, Weinstein (2) has reported the presence of type C virus particles in cell cultures derived from transplantable and primary hepatocellular carcinomas. To date, the biological function of these virus and their significance in chemically induced hepatocarcinogenesis are unknown. The present studies were initiated to determine a possible role for type C virus particles in chemically induced hepatocarcinogenesis. This communication describes results of studies on the biological and surface properties of type C virus associated with Novikoff hepatocarcinoma cells.Ecotropic and xenotropic murine leukemia virus (MuLV) activity in ascitic fluid of Novikoff tumor-bearing rats was assayed in murine sarcoma virus transformed S+L- mouse cells and S+L- mink cells, respectively. The presence of sarcoma virus activity was assayed in non-virus-producing normal rat kidney (NRK) cells. Ferritin conjugates of concanavalin A (Fer-Con wheat germ agglutinin (Fer-WGA), and Ricinus communis agglutinins I and II (Fer-RCAI and Fer-RCAII) were used to probe the structure and topography of saccharide determinants present on the viral envelope.

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