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Full-Text Articles in Engineering
Molecular Dynamics Study On The Structure, Dynamics And Stress Response Of Dilute Micellar Systems In Uniaxial Extensional Deformation, Kelechi Okoroafor
Molecular Dynamics Study On The Structure, Dynamics And Stress Response Of Dilute Micellar Systems In Uniaxial Extensional Deformation, Kelechi Okoroafor
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Micellar structures have been proposed for potential application in hydrotropy, biomimetics, dispersion and emulsification, enhanced oil recovery, detergency, templating, drug delivery, personal care products, drag reduction, nanoscale reaction vessels, therapeutic gene delivery, bio-catalysis and so on. Though several studies exist, there still remains a gap in the current knowledge on structural response of single micelles in solution to uniaxial extensional flow deformation. These knowledge gaps are possibly due to the inability of traditional experimental studies to investigate micellar properties at the time- and length-scale pertinent to self-assembly and micellar dynamics. To this end, this work aims to utilise coarse-grained molecular …
Structure, Dynamics And Rheology Of Surfactant Micelles And Micelle-Nanoparticle Solutions: A Molecular Dynamics Study, Abhinanden Sambasivam
Structure, Dynamics And Rheology Of Surfactant Micelles And Micelle-Nanoparticle Solutions: A Molecular Dynamics Study, Abhinanden Sambasivam
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Surfactant micelles are widely used in a number of industrial, commercial and household products and processes. Understanding flow-microstructure coupling in micellar systems can benefit applications ranging from targeted drug delivery and detergency to enhanced oil recovery and hydrofracking. Amongst micellar fluids, wormlike micelles (WLMs) are extremely interesting due to their structural similarity to polymers and their ability to constantly undergo scission and recombination at equilibrium. More recently, much has been generated in studying the effect of adding colloidal particles to WLMs. Colloidal particles can not only add functionality to the fluid but also act as viscosity modifiers. Such solutions can …
Structure, Rheology And Optical Properties Of Plasmonic Fluids, Tao Cong
Structure, Rheology And Optical Properties Of Plasmonic Fluids, Tao Cong
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Fluids with tunable optical and rheological properties are of fundamental and practical interest. They can be easily processed to manufacture thin films and interfaces for applications such as molecular detection and light trapping in photovoltaics. Cationic surfactants such as cetyl-trimethylammonium bromide have the ability to self assemble with metallic nanoparticles to form a corona or a double-layer vesicular structure. These structures upon further interaction with wormlike micelle fragments are hypothesized to form micelle-nanoparticle elastic networks. In this dissertation, solution phase self-assembly is utilized to uniformly distribute various metallic nanoparticles to produce stable multicomponent plasmonic fluids with remarkable color uniformity. The …