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Articles 1 - 7 of 7
Full-Text Articles in Biological Engineering
Characterization Of Molecular Communication Based On Cell Metabolism Through Mutual Information And Flux Balance Analysis, Zahmeeth Sayed Sakkaff
Characterization Of Molecular Communication Based On Cell Metabolism Through Mutual Information And Flux Balance Analysis, Zahmeeth Sayed Sakkaff
Department of Computer Science and Engineering: Dissertations, Theses, and Student Research
Synthetic biology is providing novel tools to engineer cells and access the basis of their molecular information processing, including their communication channels based on chemical reactions and molecule exchange. Molecular communication is a discipline in communication engineering that studies these types of communications and ways to exploit them for novel purposes, such as the development of ubiquitous and heterogeneous communication networks to interconnect biological cells with nano and biotechnology-enabled devices, i.e., the Internet of Bio-Nano Things. One major problem in realizing these goals stands in the development of reliable techniques to control the engineered cells and their behavior from the …
Extracellular Matrix Control Of Breast Cancer Metastasis And Dormancy, Lauren Barney
Extracellular Matrix Control Of Breast Cancer Metastasis And Dormancy, Lauren Barney
Doctoral Dissertations
To metastasize, a cell must travel through circulation to a secondary tissue, and this process causes 90% of all cancer deaths. Although inefficient, metastasis is not random, and only capable seeds in hospitable soils are capable of outgrowing into detectable metastases. The overall hypothesis in this work is that the secondary tissue microenvironment, particularly the extracellular matrix (ECM), mediates metastasis. We posit that the ability of metastatic cells to survive dormancy, exit quiescence, and colonize a tissue depends upon the ability of the soil to sustain survival, and subsequently trigger outgrowth. We created a simple biomaterial platform with systematic control …
Fermentative Processes Requiring Low Solubility Feed Gases: An Investigation Into Gas-Dependent Microorganisms, Eric W. Doerr
Fermentative Processes Requiring Low Solubility Feed Gases: An Investigation Into Gas-Dependent Microorganisms, Eric W. Doerr
Electronic Thesis and Dissertation Repository
Two bioprocesses were separately investigated based on their common interest of using gaseous substrates that have low solubility. The first process involved the development of a mixed culture using two organisms capable of utilizing glycerol and carbon monoxide separately to increase biobutanol production, while the second process involved an investigation of different production media used in aerobic xanthan production of Xanthomonas campestris with pressurization effects. It was determined that Clostridium pasteurianum should be used with an organism like Clostridium carboxidivorans or Eubacterium limosum in order for butyrate uptake at 3 g/L to occur with a minimum 0.1 g/L butyrate production. …
Alginate Hydrogels As Three-Dimensional Scaffolds For In Vitro Culture Models Of Growth Plate Cartilage Development And Porcine Embryo Elongation, Taylor D. Laughlin
Alginate Hydrogels As Three-Dimensional Scaffolds For In Vitro Culture Models Of Growth Plate Cartilage Development And Porcine Embryo Elongation, Taylor D. Laughlin
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
The establishment of in vitro culture models utilizes tissue engineering principles to design functional mimics of in vivo environments in vitro. Advantages for the use of in vitro culture models include ethical alleviation of animal models for therapeutic testing, cost efficiency, and a greater ability to study specific mechanisms via a systematic, ground-up approach to development. In this thesis, alginate hydrogels are utilized in the development of in vitro culture models of porcine embryo elongation and growth plate cartilage development. First, the effect of scaffold and modifications to the scaffold were explored in both projects. In order to modulate …
Bioengineered Platforms To Study Carcinoma Cell Response To Drug Treatment, Thuy V. Nguyen
Bioengineered Platforms To Study Carcinoma Cell Response To Drug Treatment, Thuy V. Nguyen
Doctoral Dissertations
The tumor extracellular matrix (ECM) plays an important role in facilitating tumor growth and mediating tumor cells' resistance to drugs. However, during drug development, potential chemotherapeutics are screened in plastic plates, which lack relevant ECM physicochemical cues. In order to improve drug development process, this dissertation includes the development of relevant 2D and 3D biomaterial systems that can be used to study carcinoma cell response to drug treatment. A novel poly(ethylene glycol)-phosphorylcholine (PEG-PC) high-throughput biomaterial platform was developed to study how the ECM mechanochemical properties affect cancer cells' response to drug. The PEG-PC biomaterial is optically transparent, has a mechanical …
In Silico Driven Metabolic Engineering Towards Enhancing Biofuel And Biochemical Production, Richard Adam Thompson
In Silico Driven Metabolic Engineering Towards Enhancing Biofuel And Biochemical Production, Richard Adam Thompson
Doctoral Dissertations
The development of a secure and sustainable energy economy is likely to require the production of fuels and commodity chemicals in a renewable manner. There has been renewed interest in biological commodity chemical production recently, in particular focusing on non-edible feedstocks. The fields of metabolic engineering and synthetic biology have arisen in the past 20 years to address the challenge of chemical production from biological feedstocks. Metabolic modeling is a powerful tool for studying the metabolism of an organism and predicting the effects of metabolic engineering strategies. Various techniques have been developed for modeling cellular metabolism, with the underlying principle …
Brain Tumor In A Dish: Glioma/Astrocyte Co-Cultures As A Model For In Vitro Studies, Erin Eickman, Christina Wilson, Srivatsan Kidambi
Brain Tumor In A Dish: Glioma/Astrocyte Co-Cultures As A Model For In Vitro Studies, Erin Eickman, Christina Wilson, Srivatsan Kidambi
UCARE Research Products
This study seeks to engineer an in vitro co-culture model to elucidate the role of glioma-astrocyte interactions on molecular changes in the tumor microenvironment. The use of patterned co-cultures created with polyelectrolyte multilayers and micromolding in capillaries will allow tthe investigation of cell-cell communication. This study will lead to better understanding of the role of healthy cells in cancer progression and potential treatment options.