scholarly journals Sodium lauryl ether sulfate (SLES) degradation by nitrate-reducing bacteria

2017 ◽  
Vol 101 (12) ◽  
pp. 5163-5173 ◽  
Author(s):  
Ana M. S. Paulo ◽  
Rozelin Aydin ◽  
Mauricio R. Dimitrov ◽  
Harm Vreeling ◽  
Ana J. Cavaleiro ◽  
...  
Keyword(s):  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether ◽  
Reducing Bacteria ◽  
Nitrate Reducing Bacteria

scholarly journals Isolation and Characterization in a Soil Conditioned With Foaming Agents of a Bacterial Consortium Able to Degrade Sodium Lauryl Ether Sulfate

2020 ◽  
Vol 11 ◽  
Author(s):  
Ludovica Rolando ◽  
Paola Grenni ◽  
Jasmin Rauseo ◽  
Tanita Pescatore ◽  
Luisa Patrolecco ◽  
...  
Keyword(s):  
Bacterial Consortium ◽  
Foaming Agents ◽  
Sodium Lauryl Ether Sulfate ◽  
Isolation And Characterization ◽  
Ether Sulfate ◽  
Lauryl Ether

scholarly journals Polycation–Sodium Lauryl Ether Sulfate-Type Surfactant Complexes: Influence of Ethylene Oxide Length

2015 ◽  
Vol 119 (20) ◽  
pp. 6338-6347 ◽  
Author(s):  
Leo F. W. Vleugels ◽  
Jennifer Pollet ◽  
Remco Tuinier
Keyword(s):  
Ethylene Oxide ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether

scholarly journals Partitioning of Selected Anisole and Veratrole Derivatives between Water and Anionic Surfactant Micelles

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5818
Author(s):  
Andrzej Lewandowski ◽  
Katarzyna Szymczyk
Keyword(s):  
Molecular Structures ◽  
Head Group ◽  
Lauryl Sulfate ◽  
Micellar Solubilization ◽  
Surfactant Micelles ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Water Partition Coefficient ◽  
Lauryl Ether ◽  
Derivatives Of

The UV absorption spectra of six structurally related derivatives of anisole and veratrole, i.e., anisaldehyde, (E)-anethole, estragole, veratraldehyde, methyleugenol and (E)-methylisoeugenol, were recorded at various concentrations of the anionic surfactants, either sodium lauryl sulfate (SLS) or sodium lauryl ether sulfate (SLES) at T = 298 K. In addition, conductivity and density measurements were made for the SLS and SLES solutions to determine the volumetric properties of the studied surfactants. Next, using the W. Al-Soufi, L. Pińeiro and M. Novo model (APN model) including the pseudo-phase model for micellar solubilization, the values of micelle-water partition coefficients for each perfume-surfactant system were determined. In addition, the relations between the molecular structures of the solute and the head group of the surfactant and the value of the micelle-water partition coefficient as well as the octanol-water one were discussed.

Environmental and energetic effects of cleaner production scenarios on the Sodium Lauryl Ether Sulfate production chain

2019 ◽  
Vol 240 ◽  
pp. 118203
Author(s):  
Alex R. Nogueira ◽  
Maria da Graça C.B. Popi ◽  
Claudia Cristina Sanchez Moore ◽  
Luiz Kulay
Keyword(s):  
Cleaner Production ◽  
Production Chain ◽  
Sulfate Production ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether

scholarly journals Near infrared absorption spectroscopy for the quantification of unsulfated alcohol in sodium lauryl ether sulfate

2020 ◽  
pp. 096703352096382
Author(s):  
SE Cunliffe ◽  
PA Martin ◽  
MR Baker ◽  
O Mihailova ◽  
PJ Martin
Keyword(s):  
Gas Chromatography ◽  
Least Squares ◽  
Partial Least Squares ◽  
Absorption Spectroscopy ◽  
Near Infrared ◽  
External Validation ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether ◽  
Nir Absorption

Compositional variations in the surfactants used to produce personal care products result in significant challenges during large scale manufacturing, for example errors in product viscosity. Characterisation of the surfactant can be completed using chromatographic techniques however these are time consuming and impractical during real-time manufacturing. Near infrared (NIR) absorption spectroscopy with a fibre-optic coupled transmission probe is proposed as an in-line method of determining the levels of unsulfated alcohol in sodium lauryl ether sulfate (SLES). NIR absorption spectra in the region of 4000 – 12000 cm−1 were collected for a range of supplier samples at three temperatures. Gas chromatography - mass spectrometry was used as a reference technique to quantify samples of SLES and quantitative chemometric data analysis was used to produce partial least squares (PLS) calibration models for the prediction of surfactant composition. PLS regression was performed on the data in the spectral regions between 7509 – 5334 cm−1 using a range of data pre-processing techniques to identify the best model. Models were evaluated using root mean square error of cross validation (RMSECV) and residual predictive deviation (RPD) as the primary indicator of model accuracy and robustness. A partial least squares regression model using a generalised least squares weighting data pre-processing approach was found to be the most robust in regards to sample non-homogeneity and temperature, producing a model with an RMSECV = 0.094 w/w% and RPD = 4.03. The model successfully predicted the unsulfated alcohol mass percentage in an external validation of unknown samples with alcohol levels within the model limits of 0.7–2.2 w/w%. Spectra acquired at a resolution of 8 cm−1 with 32 scans take just 16 seconds to obtain, proving that NIR spectroscopy can successfully be applied as an alternative analytical method to gas chromatography for the determination of low level impurities in viscous surfactant systems.

Anti-fog chitosan/sodium lauryl ether sulfate films

2013 ◽  
Vol 70 (12) ◽  
pp. 3305-3316 ◽  
Author(s):  
Manuela Florea-Spiroiu ◽  
Diana Achimescu ◽  
Ioana Stanculescu ◽  
Munizer Purica ◽  
Raluca Gavrila ◽  
...  
Keyword(s):  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether

scholarly journals Decellularization of Kidney Tissue: Comparison of Sodium Lauryl Ether Sulfate and Sodium Dodecyl Sulfate for Allotransplantation in Rat

2020 ◽  
Author(s):  
Mohammad Amin Keshvari ◽  
Alireza Afshar ◽  
Sajad Daneshi ◽  
Arezoo Khoradmehr ◽  
Mandana Baghban ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Sodium Dodecyl Sulfate ◽  
Sodium Dodecyl ◽  
Kidney Tissue ◽  
Dna Quantification ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether ◽  
Dodecyl Sulfate ◽  
Decellularized Scaffolds

Chronic kidney diseases (CKD) and end stage renal disease (ESRD) are growing threats worldwide. Tissue engineering is a new hope to surpass the current limitations such as the shortage of donor. To do so, the first step would be fabrication of an intact decellularized kidney scaffold. In the current study, an automatic decellularization device was developed to perfuse and decellularize male rats' kidneys using both sodium lauryl ether sulfate (SLES) and sodium dodecyl sulfate (SDS) and to compare their efficacy in kidney decellularization and post-transplantation angiogenesis. After anesthesia, kidneys were perfused with either 1% SDS solution for 4 h or 1% SLES solution for 6 h. The decellularized scaffolds were stained with hematoxylin and eosin (H&E), periodic acid Schiff (PAS), Masson’s trichrome, and alcian blue to determine cell removal and glycogen, collagen and glycosaminoglycans (GAGs) contents, respectively. Moreover, scanning electron microscopy (SEM) was performed to evaluate the cell removal and preservation of microarchitecture of both SDS and SLES scaffolds. Additionally, DNA quantification assay was applied for all groups in order to measure residual DNA in the scaffolds and normal kidney. In order to demonstrate biocompatibility and bioactivity of the decellularized scaffolds, allotransplantation was performed in back muscle and angiogenesis was evaluated. Complete cell removal in both SLES and SDS groups was observed in SEM and DNA quantification assays. Moreover, the extracellular matrix (ECM) architecture of rat kidney in the SLES group was significantly preservation better than the SDS group was shown. The formation of blood capillaries and vessels were observed in the kidney allotransplantations in both SLES and SDS decellularized kidneys. In conclusion, we demonstrated that both SLES and SDS could be promising tools in kidney tissue engineering. The better preservation of ECM than SDS, introduces SLES as the solvent of choice for kidney decellularization. ¬¬

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