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Journal articles on the topic 'Surfactant system'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

van Golde, LMG, JJ Batenburg, and B. Robertson. "The Pulmonary Surfactant System." Physiology 9, no. 1 (1994): 13–20. http://dx.doi.org/10.1152/physiologyonline.1994.9.1.13.

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The pulmonary surfactant system includes specific proteins involved in the regulation of surfactant secretion and recycling, conversion of secreted lamellar bodies to tubular myelin, film adsorption, and stimulation of alveolar macrophages. Hydrophobic proteins are essential for the rapid physiological action of exogenous surfactants currently used in clinical practice.

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2

Kurnia, Rani, Dian Asfriany Nurfalah, Deana Wahyuningrum, Taufan Marhaendrajana, and Utjok W.R Siagian. "Lessons Learned in Interfacial Tension Prediction Using a Mixture of Sulfonate- and Ethoxylate-based Surfactants in a Waxy Oil-brine System." Journal of Engineering and Technological Sciences 55, no. 6 (2023): 627–38. http://dx.doi.org/10.5614/j.eng.technol.sci.2023.55.6.1.

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The chemical-enhanced oil recovery (CEOR) method is applied to change reservoir rock or fluid characteristics by injecting alkaline, surfactant, and polymer or a combination of two or three of the compounds. Surfactant flooding improves oil recovery by reducing the interfacial tension between oil and water. Selecting reservoir surfactants, especially microemulsions, requires careful screening. This study predicted waxy oil system interfacial tension using surfactant mixtures at below- and above-optimum salinity. To predict the interfacial tension, microemulsion types, HLB, ideal salinity, and

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3

Mitru, Daniel, Gheorghe Nechifor, Stefania Gheorghe, et al. "Removal and Effects of Surfactants in Activated Sludge System." Revista de Chimie 71, no. 1 (2020): 100–106. http://dx.doi.org/10.37358/rc.20.1.7819.

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The widespread use of detergents has raised concern with regard to the environmental pollution caused by their active substances, which are biorefractory, toxic or persistent. Even though anionic and non-ionic surfactants often used in commercial detergents composition are reasonably degradable under aerobic conditions and not particularly toxic at low concentrations, high concentration of surfactants influenced the activated sludge activity and are harmful for the aquatic environment. In the literature, data on the biodegradability and/or ecotoxicity of a certain type of surfactant (anionic,

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4

Liu, Xian Feng, Jia Hui Peng, Gui Fang Wei, Chang Hui Yang, and Lin Qing Huang. "Adsorption Characteristics of Surfactant on Slag in Alkali Activated Slag Cement System." Applied Mechanics and Materials 174-177 (May 2012): 1072–78. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.1072.

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Alkali activated slag cement was a new green cementing material with many performances. Whereas, high viscosity and bad workability of the fresh mixture were the matters to embarrass its application. For exploring the special superplasticizer, the adsorption characteristics of surfactant on slag was studied, by UV Vis Absorption Spectrum Method. The results showed, first, the adsorbed amount of cationic surfactant [CH3(CH2)11N(CH3)3]Cl was the highest value among the five surfactants, 12.8 mg/g. Second, the effect of alkali on the adsorbed amount of surfactant was complex. Cationic surfactant

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Silva, Israel Gonçalves Sales da, Juliano Rodrigues Pappalardo, Nathália Maria Padilha da Rocha e Silva, Attilio Converti, Fabíola Carolina Gomes de Almeida, and Leonie Asfora Sarubbo. "Treatment of Motor Oil-Contaminated Soil with Green Surfactant Using a Mobile Remediation System." Processes 11, no. 4 (2023): 1081. http://dx.doi.org/10.3390/pr11041081.

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Leak of fuels and lubricants occurring during exploration, distribution, refining and storage operations is the major cause of environmental pollution due to petroderivatives dispersion. The quick use of a series of physicochemical and biological techniques is needed to drastically reduce the magnitude of damage provoked by these pollutants. Among them, soil washing proved to be an effective alternative to the remediation of hydrocarbon-polluted sites, mainly if combined with surfactant utilization. However, the direct use of surfactants can lead to problems related to the toxicity and dispers

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Doong, Ruey-an, Ya-Wen Wu, and Wen-gang Lei. "Surfactant enhanced remediation of cadmium contaminated soils." Water Science and Technology 37, no. 8 (1998): 65–71. http://dx.doi.org/10.2166/wst.1998.0309.

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An investigation involving the addition of surfactant to remediate cadmium-contaminated soils was performed to determine the optimal surfactant enhanced remediation system. Anionic (sodium dodecyl sulfate, SDS), nonionic (Triton X-100, TX100) and cationic (cetyltrimethylammonium bromide, CTAB) surfactants were used to elucidate the extraction efficiency of surfactant. EDTA and diphenylthiocarbazone (DPC) were also added to enhance the extraction efficiencies of surfactants. Moreover, the pH effect was examined to determine the optimal surfactant systems. The addition of anionic and nonionic su

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7

Wannas, Ali N., and Nidhal K. Maraie. "Preparation and in-vitro evaluation of cilostazol self-emulsifying drug delivery system." Al Mustansiriyah Journal of Pharmaceutical Sciences 20, no. 1 (2020): 13–30. http://dx.doi.org/10.32947/ajps.v20i1.682.

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This work reported a first liquid self-nanoemulsifying drug delivery system (SEDD) of cilostazol using oleic acid as oil phase, tween 80 as surfactant, and transcutol as co-surfactant. Cilostazol is a poor water-soluble phosphodiesterase III inhibitor, which has antiplatelet  and vasodilator effect used to relief intermittent claudication symptoms. Cilostazol solubility was determined in various oils, surfactants and co-surfactants and phase diagram was constructed at different oil: surfactant: co-surfactant ratios to determine the existence of nano-emulsion region. The in-vitro di

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8

Klovak, Viktoriia, and Kulichenko Sergey. "Spectrophotometric and Fluorescent Determination of Hydrophobic Organic Cations in the Surfactant-modified System Mo(VI)– Bromopyrogallol Red." Methods and Objects of Chemical Analysis 18, no. 2 (2023): 55–62. http://dx.doi.org/10.17721/moca.2023.55-62.

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The spectrophotometric and fluorescent characteristics of the surfactant-modified molybdenum (VI) – bromopyrogallol red reagent system were studied. The hydrophobic modification was achieved by adding cationic, nonionic surfactants, or, accordingly, mixtures of surfactant modifiers into the metal reagent system. Modification of the metal reagent system with a nonionic surfactant leads to a decrease in the limit of detection of the hydrophobic organic cation in the molybdenum (VI) – bromopyrogallol red system by the fluorescence method and an increase in the contrast of the spectrophotometric r

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9

Desai, Tejas R., and Sharad G. Dixit. "Adsorption from Mixtures of Cationic/Non-Ionic Surfactants on to a Polystyrene Surface." Adsorption Science & Technology 15, no. 5 (1997): 391–405. http://dx.doi.org/10.1177/026361749701500507.

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The adsorption of cetyltrimethylammonium bromide (CTAB) and nonyl phenyl ethoxylates (NP-n, where n = 13, 20 and 30) on to polystyrene powder has been studied. Concentrations of surfactant solutions ranging from below CMC to well above CMC were investigated. In a single surfactant system, only the cationic surfactant (CTAB) was found to adsorb appreciably while nonionic surfactants showed negligible adsorption. In mixed surfactant systems, the cationic surfactant was found to induce significant co-adsorption of non-ionic surfactants. The increased adsorption of non-ionic surfactants has been a

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10

Yin, Dai Yin, Ya Zhou Zhou, and Cheng Li Zhang. "The Design of Surfactant Multiplex System for Lowering Threshold Pressure." Applied Mechanics and Materials 229-231 (November 2012): 665–69. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.665.

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In order to increase surfactant compound system injection in low permeability reservoir of Chaoyanggou oilfield, we do research into formula of surfactant compound system according to reservoir condition. By contrasting to interfacial tension of different kinds of surfactants, we choose petroleum sulfonate surfactant T720-40# as main agent. As equilibrium interfacial tension of this surfactant cannot meet the requirements, so we add Na2CO3 as auxiliary agent to decrease interfacial tension. The results of laboratory experiment research show that equilibrium interfacial tension of this multiple

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11

Zhang, Hong Jun, and Meng Zheng. "Impact Evaluation and Effect of Surfactant to Oil Displacement System." Advanced Materials Research 962-965 (June 2014): 583–86. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.583.

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In this paper, the influence of mahogany sulfonate and nonionic surfactant to oil displacement system viscosity is evaluated. The effect of the two kinds of surfactants was compared by oil displacement test, the results showed that nonionic surfactant not only had no effect on oil displacement system viscosity, but also had a good oil displacement effect.

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12

Ganie, Kenny, Muhammad A. Manan, Arif Ibrahim, and Ahmad Kamal Idris. "An Experimental Approach to Formulate Lignin-Based Surfactant for Enhanced Oil Recovery." International Journal of Chemical Engineering 2019 (March 4, 2019): 1–6. http://dx.doi.org/10.1155/2019/4120859.

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The higher cost of chemical surfactants has been one of the main reasons for their limited used in enhanced oil recovery (EOR) process. Hence, the reason for developing lignin-based surfactant is to lower the cost of chemicals as it does not tie to the price of crude oil as compared to petroleum-based surfactants. Besides, lignin is biodegradable and easily extracted from plant waste. The objectives of this study are to determine the formulations of the lignin-based surfactant for EOR applications and to determine the oil recovery performance of the formulated surfactants through surfactant fl

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13

Pakpayat, Natthida, and Prapaporn Boonme. "Effects of Various Co-Surfactants and Oils on Microemulsion Formation in Decylglucoside System." Advanced Materials Research 747 (August 2013): 653–56. http://dx.doi.org/10.4028/www.scientific.net/amr.747.653.

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Decylglucoside is a non-ionic, non-toxic, biodegradable surfactant. This work aimed to establish composition where stable microemulsions could form using hydrophilic lipophilic deviation (HLD) concept to optimise the formulations. Scanning for suitable ratios of surfactant and co-surfactant was carried out by altering the surfactant/co-surfactant (S/CoS) ratios with two co-surfactants and seven different oils in order to find the optimum formulations. From the optimal S/CoS ratios, pseudo-ternary phase diagrams by dilution were subsequently performed, leading to obtain microemulsion zones. The

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14

Zhang, Jinggang, Xitong Zhang, Wei Zhao, Haihu Liu, and Youhua Jiang. "Effect of surfactants on droplet generation in a microfluidic T-junction: A lattice Boltzmann study." Physics of Fluids 34, no. 4 (2022): 042121. http://dx.doi.org/10.1063/5.0089175.

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Droplet generation in a T-junction with surfactants is simulated using our recently developed lattice Boltzmann method. The method is first used to explore the effect of surfactant concentration [Formula: see text] on droplet generation. As [Formula: see text] increases, droplet generation tends to shift from squeezing to dripping regime and then to jetting regime. In the clean system, the upstream pressure varies almost periodically with time. However, in the surfactant-laden system, the upstream pressure no longer varies periodically but overall increases with time for droplet generation in

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15

Du, Hai Yan, Wei Da Xu, Wei Zhou, and Jia Yue Sun. "Effect of Anionic Surfactants with Different Structure on the Fluorescent Properties of the CPPO-H₂O₂-Rhodamine B System." Materials Science Forum 663-665 (November 2010): 207–10. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.207.

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The effect of anionic surfactants on the chemiluminescence (CL) properties of CPPO- H2O2-Rhodamine B system was researched, and the maximum fluorescent intensity of every system was found at the critical micelle concentration (CMC) of corresponding surfactant. The reduced vibration of Rhodamine B molecules induced by the combination of micelle was offered to explain the positive effect of anionic surfactants. Moreover, the structure of anionic surfactant was found to be relative to the enhanced fluorescent intensity, and the hydrophobic group’s structure and stereospecific blockade were consid

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16

Maheshwari, Neha, Raj Kumar Arya, George D. Verros, Pradip B. Dhamole, and Ashwin Kannan. "Surfactant-Enhanced Extraction of Lutein from Marigold Petals using an Aqueous Two-Phase System." Separations 10, no. 2 (2023): 133. http://dx.doi.org/10.3390/separations10020133.

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The extraction of lutein from marigold petals using a surfactant-based aqueous two-phase system is reported. In this work, the effectiveness of the hydrophilic-lipophilic balance of surfactants on extraction performance for the extraction of lutein from marigold petal powder was demonstrated using aqueous solutions of a wide range of non-ionic surfactants. The response surface methodology was applied to obtain optimised conditions for maximum extraction of lutein. At the optimised conditions (Temperature = 37.5 °C, S/L = 0.00375, and surfactant amount = 1.5% (v/v)), 12.12 ± 0.16 mg/g of lutein

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17

Wang, Jiping, Yongbo Zhang, Huashu Dou, and Liujun Pei. "Influence of Ethylene Oxide Content in Nonionic Surfactant to the Hydrolysis of Reactive Dye in Silicone Non-Aqueous Dyeing System." Polymers 10, no. 10 (2018): 1158. http://dx.doi.org/10.3390/polym10101158.

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Silicone reverse dyeing technology provides an important means of saving water and salts-free in the textile dyeing industry. The interactions between dyes and surfactants may influence the hydrolysis of dye during dyeing. In this investigation, the effect of ethylene oxide content in nonionic surfactant on the hydrolytic reaction of reactive dye was firstly investigated in a siloxane reverse emulsion dyeing system. Compared with no surfactants, the hydrolytic reaction of vinyl sulfone reactive dye was a slowdown when some nonionic surfactants were used during dyeing. Usually, the hydrophobic

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18

Kong Zheng Chen, Randy, and Sia Chee Wee. "PERFORMANCE EVALUATION OF ALPHA-OLEFIN SULFONATE (AOS), COCO GLUCOSIDE AND DECANE IN CREATING WINSOR TYPE-III MICROEMULSION." Platform : A Journal of Engineering 5, no. 3 (2021): 38. http://dx.doi.org/10.61762/pajevol5iss3art14402.

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Enhanced oil recovery (EOR) shows great potential in maximizing the recovery of bypassed oil remains unrecovered in the reservoir after applying conventional oil recovery methods. Surfactant injection is a chemical enhanced oil recovery method that can improve the overall displacement efficiency and increase hydrocarbon production. The application of surfactant flooding is challenging due to the complexity of the design. On top of that, most of the utilized surfactants are not environmentally friendly. The formulation of the microemulsion system directly impacts the success of a surfactant inj

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Septiawan Adi Nugroho, Ilham Kuncahyo, and Dian Marlina. "SCREENING OF PIROXICAM SELF-NANOEMULSIFYING DRUG DELIVERY SYSTEM (SNEDDS) USING FRACTIONAL FACTORIAL DESIGN." Jurnal Kimia Riset 8, no. 1 (2023): 69–80. http://dx.doi.org/10.20473/jkr.v8i1.43803.

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Piroxicam belongs to BCS class II and has low solubility. Self-nanoemulsifying drug delivery systems (SNEDDS) are considered a potential approach for increasing the solubility and release of piroxicam. This study aimed to select the components and component ratios of piroxicam SNEDDS using fractional factorial design 26-2 (FFD). The variables used in the DFT development of piroxicam SNEDDS are the type and concentration of oil (triacetin and oleic acid), surfactant (kolliphor EL and Tween 60), and co-surfactants (Transcutol and PEG 400). The FFD results showed 16 runs with different proportion

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Girja, Shanker Chaubey, and N. Bhat S. "Role of surfactants on the mutual solubility of phenol-water system." Journal of Indian Chemical Society Vol. 76, Mar 1999 (1999): 138–39. https://doi.org/10.5281/zenodo.5853260.

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Department of Chemistry, North-Eastern Hill University, Shillong-793 003, India <em>Manuscript received 28 April 1998, revised 21 September 1998, accepted 15 October 1998</em> The effect of addition of surfactants, namely, sodium dodecyl sulfate (anionic), cetylpyridinium chloride (cationic) and Triton X-100 (nonionic) on the critical solution temperature (CST) of phenol-water system has hecn studied. The CST of the system which increases initially, decreases with further addition of ionic surfactants, whereas the nonionic surfactant continuously increases the CST. The composition of phenol at

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Girja, Shanker Chaubey, and N. Bhat S. "Role of surfactants on the mutual solubility of phenol-water system." Journal of Indian Chemical Society Vol. 76, Mar 1999 (1999): 138–39. https://doi.org/10.5281/zenodo.5853320.

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Department of Chemistry, North-Eastern Hill University, Shillong-793 003, India <em>Manuscript received 28 April 1998, revised 21 September 1998, accepted 15 October 1998</em> The effect of addition of surfactants, namely, sodium dodecyl sulfate (anionic), cetylpyridinium chloride (cationic) and Triton X-100 (nonionic) on the critical solution temperature (CST) of phenol-water system has been studied. The CST of the system which increases initially, decreases with further addition of ionic surfactants, whereas the nonionic surfactant continuously increases the CST. The composition of phenol at

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Vadapalli, Ratna Sree, and Sunitha Reddy, M. "Formulation and Evaluation of Self-Micro Emulsifying Drug Delivery System (SMEDDS) of Ticagrelor." Saudi Journal of Medical and Pharmaceutical Sciences 8, no. 11 (2022): 628–43. http://dx.doi.org/10.36348/sjmps.2022.v08i11.001.

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The present work mainly emphasized on the enhancement of solubility of Ticagrelor by developing Self- Micro emulsifying drug delivery system. Ticagrelor is a BCS class IV drug with poor aqueous solubility and permeability. The saturated solubility of Ticagrelor in various oils, surfactants and co-surfactants was determined by using UV-spectroscopy. The excipients were selected based on their maximum solubility and compatibility for Ticagrelor. SMEDDS formulations od Ticagrelor were developed using different oils, surfactants and co-surfactant combinations (4:1 and 3:1). Pseudo ternary phase di

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Peng, Wei, Qing You, Xiaoqiang Liu, et al. "Enhance Oil Recovery in Fracture-Cave Carbonate Reservoirs Using Zwitterion-Anionic Composite Surfactant System." Energies 18, no. 2 (2025): 383. https://doi.org/10.3390/en18020383.

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The carbonate fracture-cave reservoir in the Tahe oilfield, China, encounters development challenges because of its substantial burial depth (exceeding 5000 m). Its characteristics are low permeability, pronounced heterogeneity, extensive karst cavern systems, diverse connection configurations, and intricate spatial distribution. Prolonged conventional water flooding leads to predominant water channels, resulting in water channeling and limited sweep efficiency. Surfactant flooding is usually adopted in these conditions because it can mitigate water channeling and enhance sweep efficiency by l

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Liu, Jianfei, Yuru Wang, and Huifang Li. "Synergistic Solubilization of Phenanthrene by Mixed Micelles Composed of Biosurfactants and a Conventional Non-Ionic Surfactant." Molecules 25, no. 18 (2020): 4327. http://dx.doi.org/10.3390/molecules25184327.

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This study investigated the solubilization capabilities of rhamnolipids biosurfactant and synthetic surfactant mixtures for the application of a mixed surfactant in surfactant-enhanced remediation. The mass ratios between Triton X-100 and rhamnolipids were set at 1:0, 9:1, 3:1, 1:1, 1:3, and 0:1. The ideal critical micelle concentration values of the Triton X-100/rhamnolipids mixture system were higher than that of the theoretical predicted value suggesting the existence of interactions between the two surfactants. Solubilization capabilities were quantified in term of weight solubilization ra

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Devendiran, Sundar Vankayala, Vijayalakshmi Rajendran, and Dhanaraju Magharla Dasaratha. "Novel Clarithromycin Loaded Self Emulsifying Drug Delivery System for Amplification of Solubility and Oral Bioavailability." Der Pharma Chemica 15, no. 4 (2023): 9. https://doi.org/10.5281/zenodo.13320267.

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SEDDS (self-emulsifying drug delivery system) are of particularly relevant for the production of isotropic mixtures of oil, surfactant, co-surfactant, and drug in order to solve their physicochemical problems. Clarithromycin (CLA), a macrolide, has a 50 percent absolute bioavailability. The goal of this work was to create a liquid SEDDS system for CLA in order to increase solubility by increasing interfacial surface area and thereby boosting absorption. Clarithromycin SEDDS were produced with isopropyl myristate as the oily phase, Cremophor EL, Tween 80, Brij 58 as surfactants, and isopropyl a

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Sundar, Vankayala Devendiran, Rajendran Vijayalakshmi, and Magharla Dasaratha Dhanaraju. "Novel Clarithromycin Loaded Self Emulsifying Drug Delivery System for Amplification of Solubility and Oral Bioavailability." DER PHARMA CHEMICA 15, no. 4 (2023): 9. https://doi.org/10.4172/0975-413X.15.4.5-13.

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SEDDS (self-emulsifying drug delivery system) are of particularly relevant for the production of isotropic mixtures of oil, surfactant, co-surfactant, and drug in order to solve their physicochemical problems. Clarithromycin (CLA), a macrolide, has a 50 percent absolute bioavailability. The goal of this work was to create a liquid SEDDS system for CLA in order to increase solubility by increasing interfacial surface area and thereby boosting absorption. Clarithromycin SEDDS were produced with isopropyl myristate as the oily phase, Cremophor EL, Tween 80, Brij 58 as surfactants, and isopropyl a

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Manasa, Sanke, and K. Anie Vijetha. "Formulation and Evaluation of Dabigatran Solid Self-Nano Emulsifying Drug Delivery System." Saudi Journal of Medical and Pharmaceutical Sciences 8, no. 10 (2022): 585–602. http://dx.doi.org/10.36348/sjmps.2022.v08i10.012.

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Dabigatran Etexilate (DE), a prodrug of dabigatran, is a strong oral, reversible, and direct thrombin inhibitor with low oral bioavailability because of active efflux via intestinal P-glycoprotein receptors. By creating a self-emulsifying drug delivery system, the current work largely focused on improving the solubility of dabigatran. Dabigatran is a BCS class II medication with high permeability and poor water solubility. UV-spectroscopy was used to determine Dabigatran's saturated solubility in different oils, surfactants, and co-surfactants. Based on their maximum solubility and compatibili

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Meena, Jagrati, Suresh Kumar Meena, and KM Gangotri. "Enhanced Electrical Output by Mixed Surfactant for Solar Cells: EDTA+TB+NaLS+CPC+Tween-80 system." Oriental Journal Of Chemistry 40, no. 1 (2024): 288–93. http://dx.doi.org/10.13005/ojc/400135.

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Enhancing photogalvanics electrical output in the sphere of solar energy is the goal of the study. The use of fossil fuels is also limitation to energy conversion. The photogalvanic (PG)cell with EDTA + TB + NaLS + CPC + Tween-80 produces superior results than a system with just one surfactant. The photopotential (PP) and photocurrent (PC) of the EDTA+TB + NaLS + CPC + Tween-80 photogalvanics were measured at 689.00 mV and 234.00 uA, respectively. The efficiency and performance of the EDTA+TB+NaLS+CPC+Tween-80 photogalvanics were determined to be 0.2811% and 109.00 minutes, respectively. The p

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Klovak, Viktoriia, Sergey Kulichenko, and Serhii Lelyushok. "Matching Effects in the Interaction of Ionic Surfactants with Fluorescent Reagents in Micellar Solutions of Triton X-100." Methods and Objects of Chemical Analysis 16, no. 3 (2021): 117–26. http://dx.doi.org/10.17721/moca.2021.117-126.

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The influence of cationic and anionic surfactant solutions on the character of the fluorescence spectra of reagents of different charge and hydrophobicity in aqueous solutions of nonionic surfactant Triton X-100 has been studied. An increase in the fluorescence intensity and a shift in the position of the fluorescence maximum with increasing hydrophobicity of reagents and ionic surfactants have been shown. The analytical signal of the surfactant is further amplified in the proximity of the charge values of the reagent and the counterion of the surfactant. The non-monotonic nature of the hydrop

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Ruhsing Pan, J., C. Huang, and C. Gang Fu. "Effect of surfactant on alum sludge conditioning and dewaterability." Water Science and Technology 41, no. 8 (2000): 17–22. http://dx.doi.org/10.2166/wst.2000.0137.

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Sludge disposal has become a new challenge for the Taiwan government due to the increasing demand for better quality and greater quantity of water. In some water treatment plants, surfactant has been applied in the flotation process to improve its performance, which suggests the use of surfactant in sludge conditioning. In this study, effects of surfactants on the conditioning of the alum sludge collected from Feng-Yuan Water Treatment Plant were investigated. Surfactants of various charges, namely CTAB and SDS, were added to sludge samples in various amounts, and their effects on sludge dewat

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Moater, Elena Irina, Cristiana Radulescu, and Ionica Ionita. "The Spectrophotometric and Tensiometric Study of Interaction Between Nonionic Surfactants with Acid Dye." Revista de Chimie 68, no. 5 (2017): 1010–13. http://dx.doi.org/10.37358/rc.17.5.5600.

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The study of the interaction between nonionic surfactants and acid dyes is very important in clarifying the mechanism of wool dyeing and colors preservation and also for the washing conditions determination. This paper presents the spectrophotometric and tensiometric data of the interaction between the alkyl polyglucosides surfactants class with new synthesized dye, from the class of azoic dyes derived from 3H-aza-1-oxa-2H-tioxo-5,8-fenalendisulfonic acid. A multiplicity of transitions is observed, when the surface tension of aqueous solutions of nonionic surfactant (APG) in the presence of th

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Rahmasari, Dyah, Noorma Rosita, and Widji Soeratri. "Physicochemical Characteristics, Stability, and Irritability of Nanostructured Lipid Carrier System Stabilized with Different Surfactant Ratios." JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA 9, no. 1 (2022): 8–16. http://dx.doi.org/10.20473/jfiki.v9i12022.8-16.

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Background: One of the vital variables affecting the stability and the characteristics of the Nanostructured Lipid Carrier (NLC) is the surfactant concentration. Using the two combinations of surfactants can cause higher stability and a better characteristic of NLC. Tween 80 and Span 20 are anionic surfactants whose combination has not been studied for use in NLC systems. Objective: Determine the effect of different surfactant ratios of Tween 80 and Span 20 on the physicochemical characteristics, stability, and irritability of NLC using the High Shear Homogenization (HSH) method. Methods: Four

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McLachlan, Aleisha A., and D. Gerrard Marangoni. "1D and 2D NMR investigations of the interaction between oppositely charged polymers and surfactants." Canadian Journal of Chemistry 88, no. 2 (2010): 124–34. http://dx.doi.org/10.1139/v09-039.

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Proton chemical shifts and two-dimensional COSY and NOE spectroscopy (NOESY) experiments have been used to examine the interaction of various oppositely charged surfactant and polyelectrolyte systems, namely, the cationic surfactant dodecyltrimethyammonium bromide (DTAB) and a series of alkanediyl-α,ω-bis(alkyldimethylammonium bromide) surfactants (Gem 12-s-12, where s is the length of the methylene spacer group) with the anionic polyelectrolyte poly(styrene sulfonate) or PSS. In all cases, we observe substantial aromatic-solute-induced chemical shifts (ASIS) in the surfactant peaks of the pol

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Hwangbo, Seon-Ae, Seung-Yul Lee, Bu-An Kim, and Chang-Kwon Moon. "Preparation of Surfactant-Free Nano Oil Particles in Water Using Ultrasonic System and the Mechanism of Emulsion Stability." Nanomaterials 12, no. 9 (2022): 1547. http://dx.doi.org/10.3390/nano12091547.

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Emulsion technology is widely used in the preparation of cosmetics, pharmaceuticals, drug delivery, and other daily necessities, and surfactants are frequently used to prepare these emulsions because of the lack of reliable surfactant-free emulsification techniques. This is disadvantageous because some surfactants pose health hazards, cause environmental pollution, have costly components, and place limitations on process development. In this paper, an efficient method for surfactant-free nano-emulsification is presented. In addition, we discuss the effects of different operating parameters on

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Setiati, Rini, Septoratno Siregar, Taufan Marhaendrajana, and Deana Wahyuningrum. "Sustainable Innovation System Using Process Of Bagasse Become Sodium Lignosulfonate Surfactant For Enhanced Oil Recovery." E3S Web of Conferences 43 (2018): 01026. http://dx.doi.org/10.1051/e3sconf/20184301026.

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The purpose of this research is to get new product innovation process from bagasse, that is Sodium LignoSulfonate surfactant. Lignosulfonates surfactants in petroleum engineering are used as injection fluids into oil reservoirs to increase oil recovery, which is known as Enhanced Oil Recovery process. Lignosulfonates is made of lignin as raw material, which can be extracted from bagasse as one of its sources. Bagasse contains 24 - 25% lignin, so it is sufficient to be processed into lignosulfonates. Today, bagasse is one of the biomass resources widely used as a boiler fuel in sugar factory, s

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., Arti, Abdul Wadood Ansari, Abhishek Yadav, Mohd Mushahid, Tanya Singh, and Jitendra Kumar Rai. "Niosome: A Comprehensive Review of Novel Drug Delivery System." International Journal of Research and Review 12, no. 5 (2025): 230–40. https://doi.org/10.52403/ijrr.20250527.

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Non-ionic surfactant vesicles, which make up niosomes, are made by hydrating a mixture of non-ionic surfactant and cholesterol. They can be employed as both lipophilic and amphiphilic drug carriers. Niosomes are a kind of delivery mechanism where drugs are contained within vesicles. Niosomes have a variety of characteristics, including being non-immunogenic, biodegradable, and structurally flexible. The reason for writing this review is to shed light on the several ways that niosomes are utilized to treat a variety of illnesses. We will examine several facets of niosomes in this review paper.

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Preethi, G. B., H. N. Shivakumar, M. Ravi Kumar, and N. Sweta. "PROTOTYPE SELF EMULSIFYING SYSTEM OF ETRAVIRINE: DESIGN, FORMULATION AND IN VITRO EVALUATION." International Journal of Applied Pharmaceutics 10, no. 2 (2018): 13. http://dx.doi.org/10.22159/ijap.2018v10i2.22714.

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Objective: Lipid-based formulations have gained much attention, particularly on self-emulsifying drug delivery systems (SEDDS), to improve the oral bioavailability of lipophilic drugs. In the present study, an attempt was made to develop and evaluate prototype SEDDS of poorly soluble antiviral BCS class IV drug etravirine.Methods: Various oils, surfactants and co-surfactants were screened for their suitability in the formulation of SEDDS. Based on the screening, gelucire 44/14, as the oil, labrasol as a surfactant and transcutol HP as the co-surfactant were selected. SEDDS with drug etravirine

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N., Likitha, and Sandeep K. "Self Emulsifying Drug Delivery System." International Journal of Innovative Science and Research Technology 7, no. 11 (2022): 33–40. https://doi.org/10.5281/zenodo.7319153.

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Self-emulsifying drug delivery systems (SEEDS) are mixtures of perfect isotropic oils and surfactants, with or without cosolvents, that emulsify when gently agitated, similar to the conditions found in the gastrointestinal tract. These systems cause the gastro-intestinal tract (GIT) to mildly agitate while forming fine emulsions (or micro-emulsions). The oral absorption of drugs from SEEDS is greatly influenced by a number of factors, including surfactant concentration, oil/surfactant ratio, polarity of the emulsion, droplet size, and charge. This formulation improves bioavailability by increa

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Yao, Erdong, Tianbo Liang, Yuan Li, Jiaxin Sun, and Fujian Zhou. "Development of a New Multifunctional Cationic Surfactant System with Corrosion Inhibiting Ability." Geofluids 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/2849356.

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Four alkyl propargyl bis(hydroxyethyl) ammonium surfactants with different lengths in hydrophobic tail (C8–C16) are prepared by direct alkylation of diethanolamine with alkyl bromides. The surfactants exhibit excellent surface properties. The critical micelle concentration (CMC) values of the surfactants 2c and 2d are found to be 7.63×10-4 and 1.23×10-4 mol/L, and the corresponding surface tension (γCMC) values are 31.83 and 31.69 mN/m, respectively. Furthermore, all of the synthesized propargyl quaternary ammonium salts are found to be very effective in inhibiting the corrosion of N80 steel (

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Wang, Biao, Xue Wang, Futang Hu, et al. "Study on the Properties of Compound Surfactants with PO Groups." Energies 17, no. 2 (2024): 513. http://dx.doi.org/10.3390/en17020513.

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The compound surfactant system has considerable development prospects for improving oil recovery. A synergistic effect can be achieved through the orderly arrangement of the two surfactants on the interface, which can make up for the performance defects of a single surfactant. In this paper, the effects of the number of propylene oxides (PO) in composite surfactants on interfacial tension and emulsion stability were systematically studied. The results showed that the solubility of composite surfactants was significantly improved under high-salinity conditions by adding anionic–nonionic surfact

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Mustafa, Isshadiba Faikah, Mohd Zobir Hussein, Abu Seman Idris, Nur Hailini Zainol Hilmi, and Sharida Fakurazi. "Hexaconazole-Micelle Nanodelivery System Prepared Using Different Surfactants for Ganoderma Antifungal Application." Molecules 26, no. 19 (2021): 5837. http://dx.doi.org/10.3390/molecules26195837.

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Reports on fungicide-based agronanochemicals in combating disastrous basal stem rot disease in the oil palm industry are scant. Herein, we describe the potential of fungicide nanodelivery agents based on hexaconazole-micelle systems produced using three different surfactants; sodium dodecylbenze sulfonate (SDBS), sodium dodecyl sulfate (SDS) and Tween 80 (T80). The resulting nanodelivery systems were characterized and the results supported the encapsulation of the fungicide into the micelles of the surfactants. We have investigated in detail the size-dependent effects of the as-synthesized mic

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Abdel-Rahem, Rami A., Sana Niaz, Abdelmnim M. Altwaiq, Muayad Esaifan, Mohammad Bassam Al Bitar, and Abeer Al Bawab. "Synergistic interaction between sodium dodecyl benzene sulfonate (SDBS) and N,N-dimethyldodecan-1-amine oxide (DDAO) and their adsorption onto activated charcoal and Jordanian natural clay." Tenside Surfactants Detergents 59, no. 2 (2022): 144–58. http://dx.doi.org/10.1515/tsd-2021-2395.

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Abstract Solutions of sodium dodecyl benzene sulfonate (SDBS) and N,N-dimethyldodecan-1-amine oxide (DDAO) with mole fractions of 0.00, 0.25, 0.50, 0.75 and 1.00 were prepared and their surface tension was measured as a function of total surfactant concentration. The critical micelle concentration (CMC) values of these mixed solutions were also determined. The minimum area occupied by a surfactant molecule at air/water interface was calculated for single and binary surfactant mixtures. A pronounced synergistic interaction between SDBS and DDAO was detected. The surface tension and CMC-values o

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Abdul Azeez, Nazeer, Krishnaswami Venkateshwaran, Ruckmani Kandasamy, Muthupandian Saravanan, and Vijaykumar Sudarshana Deepa. "Importance of nano-carriers, surfactant system, and their loading mechanism to improve the absorption and bio-availability of drugs: a review." Advances in Natural Sciences: Nanoscience and Nanotechnology 15, no. 3 (2024): 033002. http://dx.doi.org/10.1088/2043-6262/ad6cbf.

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Abstract Improving the apparent solubility of poorly soluble therapeutic molecules with poor absorption into the circulatory system is a significant research question in drug discovery. This enhancement is achieved by delivering drugs through nano-carriers that provide apparent solubility with its surfactant. The effectiveness of a nano-carrier is relied majorly on its loading efficiency which is determined by the extent of interaction between the drug and the surfactants of the carriers. The loading effectiveness can be reckoned with a better understanding of the drug-surfactant conjugation m

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Spragg, Roger G., Paul J. Ponganis, James J. Marsh, Gunnar A. Rau, and Wolfgang Bernhard. "Surfactant from diving aquatic mammals." Journal of Applied Physiology 96, no. 5 (2004): 1626–32. http://dx.doi.org/10.1152/japplphysiol.00898.2003.

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Diving mammals that descend to depths of 50-70 m or greater fully collapse the gas exchanging portions of their lungs and then reexpand these areas with ascent. To investigate whether these animals may have evolved a uniquely developed surfactant system to facilitate repetitive alveolar collapse and expansion, we have analyzed surfactant in bronchoalveolar lavage fluid (BAL) obtained from nine pinnipeds and from pigs and humans. In contrast to BAL from terrestrial mammals, BAL from pinnipeds has a higher concentration of phospholipid and relatively more fluidic phosphatidylcholine molecular sp

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Friedl, Julian David, Christian Steinbring, Sergey Zaichik, Nguyet-Minh Nguyen Le, and Andreas Bernkop-Schnürch. "Cellular uptake of self-emulsifying drug-delivery systems: polyethylene glycol versus polyglycerol surface." Nanomedicine 15, no. 19 (2020): 1829–41. http://dx.doi.org/10.2217/nnm-2020-0127.

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Aim: Comparison of the impact of polyethylene glycol (PEG) and polyglycerol (PG) surface decoration on self-emulsifying drug delivery system (SEDDS)-membrane interaction and cellular uptake. Materials & methods: PEG-, PEG/PG- and PG-SEDDS were assessed regarding their self-emulsifying properties, surface charge, bile salt fusibility, cellular uptake and interaction with endosome-mimicking membranes. Results: SEDDS exhibited droplet sizes between 150 and 175 nm, a narrow size distribution and self-emulsified within 7 min. Higher PEG-surfactant amounts in SEDDS resulted in charge-shielding a

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Sun, Qihan, Jiani Gong, Yujia Sun, Yao Song, Changyao Liu, and Baocai Xu. "The Spontaneous Vesicle–Micelle Transition in a Catanionic Surfactant System: A Chemical Trapping Study." Molecules 28, no. 16 (2023): 6062. http://dx.doi.org/10.3390/molecules28166062.

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Typically, the formation of vesicles requires the addition of salts or other additives to surfactant micelles. However, in the case of catanionic surfactants, unilamellar vesicles can spontaneously form upon dilution of the micellar solutions. Our study explores the intriguing spontaneous vesicle-to-micelle transition in catanionic surfactant systems, specifically cetyltrimethyl ammonium bromide (CTAB) and sodium octylsulfonate (SOS). To gain insights into the changes occurring at the interface, we employ a chemical trapping method to characterize variations in the molarities of sulfonate head

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Liu, Yonggui, Yang Zhang, Jing Yan, Tao Song, and Yongjun Xu. "Application of Thermal Resistant Gemini Surfactants in Highly Thixotropic Water-in-oil Drilling Fluid System." Open Chemistry 17, no. 1 (2019): 1435–41. http://dx.doi.org/10.1515/chem-2019-0157.

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AbstractTraditional water-in-oil drilling fluids are limited by their shear thinning behavior. In this article, we propose the synthesis of a thermal resistant quaternary ammonium salt gemini surfactant DQGE-I. This surfactant was synthesized using monomers such as N,N-dimethyl-1,3-propanediamine, organic acids and epichlorohydrin, as well as blocking groups such as N-vinylpyrrolidone (NVP). The prepared surfactant exhibited various advantages over traditional surfactants, including excellent thermal stability, good emulsifying and wetting capability. The use of these surfactants was shown to

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Pilipović, Ana, Ivana Vapa, Vesna Tepavčević, Gorana Puača, and Mihalj Poša. "Ternary Mixed Micelle Hexadecyltrimethylammonium Bromide—Dodecyltrimethylammonium Bromide—Sodium Deoxycholate: Gibbs Free Energy of Mixing and Excess Gibbs Energy of Mixing." Molecules 28, no. 18 (2023): 6722. http://dx.doi.org/10.3390/molecules28186722.

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Pharmaceutical, food, and cosmetic formulations often contain binary or ternary surfactant mixtures with synergistic interactions amongst micellar building blocks. Here, a ternary mixture of the surfactants hexadecyltrimethylammonium bromide, dodecyltrimethylammonium bromide, and sodium deoxycholate is examined to see if the molar fractions of the surfactants in the ternary mixed micellar pseudophase are determined by the interaction coefficients between various pairs of the surfactants or by their propensity to self-associate. Critical micelle concentrations (CMC) of the analyzed ternary mixt

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Polańska, Żaneta, Zuzanna Pietralik-Molińska, Daria Wojciechowska, et al. "The Process of Binding and Releasing of Genetic Material from Lipoplexes Based on Trimeric Surfactants and Phospholipids." International Journal of Molecular Sciences 22, no. 14 (2021): 7744. http://dx.doi.org/10.3390/ijms22147744.

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Nonviral vectors for gene therapy such as lipoplexes are characterized by low toxicity, high biocompatibility, and good transfection efficiency. Specifically, lipoplexes based on polymeric surfactants and phospholipids have great potential as gene carriers due to the increased ability to bind genetic material (multiplied positive electric charge) while lowering undesirable effects (the presence of lipids makes the system more like natural membranes). This study aimed to test the ability to bind and release genetic material by lipoplexes based on trimeric surfactants and lipid formulations of d

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Mohamed, Abdelhalim I. A., Abdullah S. Sultan, Ibnelwaleed A. Hussein, and Ghaithan A. Al-Muntasheri. "Influence of Surfactant Structure on the Stability of Water-in-Oil Emulsions under High-Temperature High-Salinity Conditions." Journal of Chemistry 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/5471376.

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Emulsified water-in-oil (W/O) systems are extensively used in the oil industry for water control and acid stimulation. Emulsifiers are commonly utilized to emulsify a water-soluble material to form W/O emulsion. The selection of a particular surfactant for such jobs is critical and certainly expensive. In this work, the impact of surfactant structure on the stability of W/O emulsions is investigated using the hydrophilic-lipophilic balance (HLB) of the surfactant. Different commercial surfactants were evaluated for use as emulsifiers for W/O systems at high-temperature (up to 120°C) high-salin

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