Micelle Formation by Surfactants

doi:10.1002/9781118228920.ch3

Cited by 32 publications

(6 citation statements)

References 219 publications

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“…Surface tension was measured on a BZY-1 automatic surface tensiometer by a Wilhelmy plate method. , All of the samples were repeated at least three times. The turning point on a plot of surface tension curve as a function of compound concentration was used to identify the critical micelle concentration (CMC), and the surface tension at that point was referred to as γ CMC . , …”

Section: Methodsmentioning

confidence: 99%

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Synthesis and Characterization of Linear Polyglycidol Derivatives: Surface Activity and Potential for Advanced Doxorubicin Delivery Application

Li,

Chen,

2023

ACS Appl. Polym. Mater.

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In this study, a series of glutathione-responsive (GSH-responsive) amphiphilic comb polymers LPGE-SS-n were synthesized based on linear polyglycidol (LPG). The corresponding structure−property curves were established through a systematic evaluation of their surface properties, drug solubility enhancement, and drug loading ability. These analyses revealed a close relationship between the physical characteristics and the length of the comb-like side chains. By using LPG as the backbone, multisite functionalization was accomplished compared to conventional PEGbased materials, resulting in significantly enhanced surface activities. Furthermore, the doxorubicin@LPGE-SS-2 micelle demonstrated selective and enhanced antitumor activity in response to high GSH concentrations, making it a potent candidate as an efficient drug delivery material. Therefore, our study offered a valuable reference for their potential applications in chemical and pharmaceutical industries.

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Section: Methodsmentioning

confidence: 99%

“…The Gibbs surface adsorption equations were used to identify the maximum concentration of surfactant molecules adsorbed at the interface per unit area (Γ max ) and the average minimum area of each surfactant molecule ( A min ) Γ max = − 1 2.303 n R T true( ∂γ ∂lg C true) T A min = 10 18 N A Γ max …”

Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Linear Polyglycidol Derivatives: Surface Activity and Potential for Advanced Doxorubicin Delivery Application

Li,

Chen,

2023

ACS Appl. Polym. Mater.

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“…CMC of Span, Tween, and a mixture of Span and Tween (ST) was determined by the method adopted by Rosen and Kunjappu. [10] The IFT concentration (IFTC) isotherm curves were plotted for the prepared surfactants at different temperatures. The CMC values were determined from the abrupt change in the slope of the IFTC curves.…”

Section: Preparation Of the W=d Emulsionmentioning

confidence: 99%

Analyzing the Stability of the Water-in-Diesel Fuel Emulsion

Patil

Gadhave

Mane

et al. 2014

Journal of Dispersion Science and Technology

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The diesel engine exhaust gas consists of many hazardous components that need to be reduced. Incorporation of water in fuel restricts the emission of such toxic gases and helps to reduce pollution. The aim of this research work is to develop a water-in-diesel fuel emulsion having maximum stability. Initially, the most suitable surfactant/blend of surfactants has been investigated, which gives the maximum stability to the Water-in-Diesel (W/D) emulsion. It is found that a blend of Span 80 and Tween 80 gives an effective result. The W/D emulsion was prepared by using a high-speed mixing homogenizer and adding a small amount of water into the diesel containing blend of Span 80 and Tween 80. The results show that 10% W/D emulsion having 5% surfactant concentration gives the most desirable emulsion stability. Beyond 10% water concentration, the properties of the W/D emulsion get lowered.

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“…On the molecular level, ionic surfactants are known to interact with solid surfaces via electrostatic and/or van der Waals interactions, forming oriented monolayers or hemimicelle structures at the fluid–solid interface. When submerged, the surface-concentrated surfactants adopt a configuration to maximize the exposure of hydrophilic head groups while directing tightly packed alkyl tails toward the solid surface. − Under ambient conditions, the hydrophobic tails are oriented toward the air–solid interface to minimize the interfacial energy, creating a hydrophobic surface. Our design capitalized on that dynamic behavior to achieve simultaneous fouling reduction at the liquid–solid and air–solid interfaces.…”

Section: Introductionmentioning

confidence: 99%

Reduced Biofilm Formation at the Air–Liquid–Solid Interface via Introduction of Surfactants

Chen

Lang

Donadt

et al. 2021

ACS Biomater. Sci. Eng.

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Reduced biofilm formation is highly desirable in applications ranging from transportation to separations and healthcare. Biofilms often form at the three-phase interface where air, liquid, and solid coexist due to the close proximity to nutrients and oxygen. Reducing biofilm formation at the triple interface presents challenges because of the conflicting requirements for hydrophobicity at the air−solid interface (for selfcleaning properties) and for hydrophilicity at the liquid−solid interface (for reduced foulant adhesion). Meeting those needs simultaneously likely entails a dynamic surface, capable of shifting the surface energy landscape in response to wetting conditions and thus enabling hydrophobicity in air and hydrophilicity in water.Here, we designed a facile approach to render existing surfaces resistant to biofilm formation at the triple interface. By adding trace amounts (∼0.1 mM) of surfactants, biofilm formation of Pseudomonas aeruginosa (known to form biofilm at the triple interface) was reduced on all surfaces tested, ranging from hydrophilic to hydrophobic, polar to nonpolar. That reduced fouling was not a result of the known antimicrobial effects. Instead, it was attributed to the surface-adsorbed surfactants that dynamically control surface energy at the triple interface. To further understand the effect of surfactant−surface interactions on biofilm reduction, we systematically varied the surfactant charge type and surface properties (surface energy and charge). Electrostatic interactions between surfactants and surfaces were identified as an influential factor when predicting the relative fouling reduction upon introduction of surfactants. Nevertheless, biofilm formation was reduced even on the charge-neutral, fluorinated surface made of poly(1H, 1H, 2H, 2H-perfluorodecyl acrylate) by more than 2-fold simply via adding 0.2 mM dodecyl trimethylammonium chloride or 0.3 mM sodium dodecyl sulfate. Given its robustness, this strategy is broadly applicable for reducing fouling on existing surfaces, which in turn improves the cost-effectiveness of membrane separations and mitigates contaminations and nosocomial infections in healthcare.

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Micelle Formation by Surfactants

Cited by 32 publications

References 219 publications

Synthesis and Characterization of Linear Polyglycidol Derivatives: Surface Activity and Potential for Advanced Doxorubicin Delivery Application

Synthesis and Characterization of Linear Polyglycidol Derivatives: Surface Activity and Potential for Advanced Doxorubicin Delivery Application

Analyzing the Stability of the Water-in-Diesel Fuel Emulsion

Reduced Biofilm Formation at the Air–Liquid–Solid Interface via Introduction of Surfactants

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