Colloids are defined as large insoluble particles uniformly suspended in a medium including gas, liquid, and solid. Different from atoms and small molecules, one interesting property of colloids is its collective behavior: a property that nano-scaled colloids exhibit as a result of colloidal self interaction and interaction with surrounding medium. It is believed that this property plays an important role in colloidal self-organize, sedimentation, phase segregation, as well as crystallization. Hollow nanostructures, such as vesicles, due to their stability, low toxicity, intracellular communication ability, and compatibility with human tissue, has gained considerable scientific interests as a type of potential drug delivery vehicle. Due to current lack of knowledge of stability of vesicles in microfluidic devices or in blood flow, first part of this study (Chapter 2) presents how nanoparticles behave by changing architecture and relative concentrations of the molecular species of the nanoparticles under various flow conditions using a simulation technique called DPD. The second part of this study (Chapter3 and 4) focus on implantation of a new multi-scale simulation technique in investigation of membrane systems. The hybrid lattice Boltzmann-molecular dynamics method (MDLBM) is able to capture molecular details of solutes and hydrodynamic interactions of fluid simultaneously, while saving computational time compared with traditional explicit solvent molecular dynamic methods. In Chapter 3, dynamics and mechanical properties of vesicles and bi-layers are tested and shown to be close to previous studies. In Chapter 4, current coupling scheme is modified and applied to study self-assembly process of lipids. Modified MDLBM algorithm is able to capture dynamical process of colloids, where the hydration shells are spontaneously replaced by interactions with other molecular species in solution, for example in processes encompassing aggregation or interfacial adsorption.
Subject (authority = RUETD)
Topic
Chemical and Biochemical Engineering
Subject (authority = ETD-LCSH)
Topic
Colloids
Subject (authority = ETD-LCSH)
Topic
Amphiphiles
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_9445
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (85 pages) : illustrations
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Xiang Yu
RelatedItem (type = host)
TitleInfo
Title
School of Graduate Studies Electronic Theses and Dissertations
Identifier (type = local)
rucore10001600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.