Engineering Commons^™

Novel Encapsulation Of Oxidizer Applied To Galvanic Cells: Aluminum / H2o2 Galvanic Cell As A Case Study, Marlyn Colon

USF Tampa Graduate Theses and Dissertations

The work presented in this thesis aims to address the obstacles that side reactions create in aluminum / H2O2 galvanic cells by proposing to control the cathodic reactant, H2O2, via encapsulation. Encapsulation of the cathodic reactant is achieved utilizing a non-ionic surfactant vesicle (i.e. niosome). Once encapsulated, a second control element over the cathodic reactant is provided. The use of a polymer will be implemented to achieve stability and render further control over the encapsulated H2O2 solution. Implementation of the proposed novel cathodic control system in aluminum / H2O2 galvanic cells aims to minimize aluminum consumption and increase cell efficiency. …

Shape-Shifting Surfaces For Rapid Release And Direct Stamping Of Organized Micro-Tissues, Samuel James Dupont

USF Tampa Graduate Theses and Dissertations

The primary aim of the research in this study is to develop a robust and simple platform for the in vitro organization of cells on surfaces which facilitate rapid cell release and allows for the direct stamping of highly organized micro-tissues. Current approaches towards this goal have been very successful but are lengthy and subject cells to harsh conditions for extended periods of time raising questions regarding cell health and maintenance of physiological state. To address these concerns a platform was developed to allow for rapid cell release by utilizing a release mechanism different from previous work.

Micron-scale structures comprised …