Microhydration of Sorbitan Monostearate (Span 60) Investigated Using Hybrid QM/MM Calculations in the Gas Phase

2021 ◽  
pp. 121977
Author(s):  
Nikorn Shinsuphan ◽  
Sriprajak Krongsuk ◽  
Supawadee Namuangruk
Keyword(s):  
Gas Phase ◽  
Sorbitan Monostearate ◽  
Span 60

scholarly journals PREPARATION OF OLIVE OIL EMULSIONS IN AQUEOUS SOLUTIONS STABILIZED BY OC-20 AND SPAN-60

2020 ◽  
pp. 137-142
Author(s):  
Дарья Алексеевна Портнова ◽  
Виолетта Андреевна Веролайнен ◽  
Светлана Анатольевна Темникова
Keyword(s):  
Aqueous Solutions ◽  
Olive Oil ◽  
Phase Inversion ◽  
Sorbitan Monostearate ◽  
Ionic Surfactants ◽  
Oil In Water ◽  
Oil Emulsions ◽  
Span 60

Методом определения температуры инверсии фаз (ТИФ) получены и исследованы обратные эмульсии оливкового масла в воде с применением в качестве стабилизаторов неионогенных поверхностноактивных веществ синтанола OC-20, сорбитана моностеарата Span 60 и их смесей. Reverse emulsions of olive oil in water with the use of non-ionic surfactants syntanol OC-20, sorbitan monostearate Span 60 and their mixtures as stabilizers were obtained and studied by the method of determining the temperature of phase inversion (TIF).

Pharmaceutical and biological characterisation of a doxorubicin-polymer conjugate (PK1) entrapped in sorbitan monostearate Span 60 niosomes

1997 ◽  
Vol 148 (2) ◽  
pp. 139-148 ◽  
Author(s):  
Elisabetta Gianasi ◽  
Fausto Cociancich ◽  
Ijeoma F. Uchegbu ◽  
Alexander T. Florence ◽  
Ruth Duncan
Keyword(s):  
Sorbitan Monostearate ◽  
Polymer Conjugate ◽  
Span 60

Acute and Subacute Toxicity of Sorbitan Monostearate (Span 60) Non-ionic Surfactant Vesicles (Niosomes) in Sprague Dawley Rats

2016 ◽  
Vol 14 (2) ◽  
pp. 1-9 ◽  
Author(s):  
Jankie Satish ◽  
Johnson Jenelle ◽  
Pinto-Pereira Lexley ◽  
Adebayo Amusa ◽  
Pillai Gopalakrishna
Keyword(s):  
Sorbitan Monostearate ◽  
Ionic Surfactant ◽  
Sprague Dawley ◽  
Subacute Toxicity ◽  
Surfactant Vesicles ◽  
Sprague Dawley Rats ◽  
Span 60

Improved Gas Chromatographic Determination of Sorbitan Fatty Acid Esters in Confectionery Products

1984 ◽  
Vol 67 (6) ◽  
pp. 1149-1151
Author(s):  
Taizo Tsuda ◽  
Hiroshi Nakanishi ◽  
Shigenobu Kobayashi ◽  
Takashi Morita
Keyword(s):  
Fatty Acid ◽  
Chromatographic Determination ◽  
Sorbitan Monostearate ◽  
Fatty Acid Esters ◽  
Column Temperature ◽  
Confectionery Products ◽  
Span 60 ◽  
Sorbitan Fatty Acid Esters ◽  
Acid Esters

Abstract A method is described for gas chromatographic (GC) determination of sorbitan fatty acid esters in confectionery products as sorbitan monostearate. A sample is homogenized with chloroform, filtered, dried, and saponified with 0.1N NaOH in ethanol 1 h at 80°C. The saponification mixture is acidified, washed with hexane, and dried. Isosorbide, 1,4-sorbitan, and D-sorbitol are each derivatized at 70°C with pyridine, hexamethyldisilazane, and trimethylchlorosilane. GC separation of the polyols as TMS (trimethylsilyl) derivatives was performed on a 2% Dexsil 300 column temperature-programmed from 120 to 250°C at 107 min. The sorbitan monostearate content of the sample was calculated from the polyols, using the appropriate conversion factor. The procedure was applied to ice creams, cakes, and other confectionery products. Average recoveries from samples spiked with 1.0% Span 60 (sorbitan monostearate) were 91-96% for isosorbide, 83-99% for 1,4-sorbitan, and 82-98% for D-sorbitol. The detection limit was approximately 0.01%.

Long-term toxicity study of sorbitan monostearate (Span 60) in mice

1978 ◽  
Vol 16 (6) ◽  
pp. 527-534 ◽  
Author(s):  
R.J. Hendy ◽  
K.R. Butterworth ◽  
I.F. Gaunt ◽  
I.S. Kiss ◽  
P. Grasso
Keyword(s):  
Sorbitan Monostearate ◽  
Toxicity Study ◽  
Span 60

scholarly journals Stability, Viscosity, and Tribology Properties of Polyol Ester Oil-Based Biolubricant Filled with TEMPO-Oxidized Bacterial Cellulose Nanofiber

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Dieter Rahmadiawan ◽  
Hairul Abral ◽  
N. Nasruddin ◽  
Zahrul Fuadi
Keyword(s):  
Thermal Conductivity ◽  
Wear Rate ◽  
Bacterial Cellulose ◽  
Base Fluid ◽  
Room Temperature ◽  
Sorbitan Monostearate ◽  
Cellulose Nanofiber ◽  
Polyol Ester ◽  
The Stability ◽  
Span 60

This research is aimed at studying the stability and tribology properties of the polyol ester oil- (POE-) based biolubricant mixed with various filler loadings from microparticle of TEMPO-oxidized bacterial cellulose (NDCt) as an additive and sorbitan monostearate (Span 60) as a surfactant. Morphology, rheology, and tribology tests were conducted. The addition of NDCt and Span 60 to pure POE as a base fluid showed elevated viscosity, lower value of coefficient friction (COF), and a remarkable decrease in the wear rate (WR). The presence of 0.6 wt% NDCt and 1.8 wt% Span 60 in POE (N2S4) decreased the COF value by 79% in comparison to POE. At room temperature, this N2S4 biolubricant sample showed a higher thermal conductivity by 4% and lower WR value by 49% compared to POE. This study introduced the preparation of the ecofriendly biolubricant filled with NDCt improving the tribology properties remarkably.

Residual Gas Reactions in the Electron Microscope: I. Qualitative Observations on the Water Gas Reaction

1968 ◽  
Vol 26 ◽  
pp. 292-293
Author(s):  
Richard E. Hartman ◽  
Roberta S. Hartman ◽  
Peter L. Ramos
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Gas Phase ◽  
Absolute Temperature ◽  
Residual Gas ◽  
Gas Reactions ◽  
Image Position ◽  
The Right ◽  
Water Gas ◽  
Thinning Rate

The action of water and the electron beam on organic specimens in the electron microscope results in the removal of oxidizable material (primarily hydrogen and carbon) by reactions similar to the water gas reaction .which has the form:The energy required to force the reaction to the right is supplied by the interaction of the electron beam with the specimen.The mass of water striking the specimen is given by:where u = gH2O/cm2 sec, PH2O = partial pressure of water in Torr, & T = absolute temperature of the gas phase. If it is assumed that mass is removed from the specimen by a reaction approximated by (1) and that the specimen is uniformly thinned by the reaction, then the thinning rate in A/ min iswhere x = thickness of the specimen in A, t = time in minutes, & E = efficiency (the fraction of the water striking the specimen which reacts with it).

Integration of Core-Edge Spectroscopy Methods for the Study of Polymers

1996 ◽  
Vol 54 ◽  
pp. 154-155
Author(s):  
E. G. Rightor
Keyword(s):  
Excited State ◽  
Polymer Blends ◽  
Gas Phase ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Electronic States ◽  
Core Electron ◽  
Bulk Solids ◽  
Development Application

Core edge spectroscopy methods are versatile tools for investigating a wide variety of materials. They can be used to probe the electronic states of materials in bulk solids, on surfaces, or in the gas phase. This family of methods involves promoting an inner shell (core) electron to an excited state and recording either the primary excitation or secondary decay of the excited state. The techniques are complimentary and have different strengths and limitations for studying challenging aspects of materials. The need to identify components in polymers or polymer blends at high spatial resolution has driven development, application, and integration of results from several of these methods.

Sign in / Sign up

Export Citation Format

Share Document