Engineering Commons^™

Inhibition Of Bacterial Growth And Prevention Of Bacterial Adhesion With Localized Nitric Oxide Delivery, Julia Osborne

Dissertations, Master's Theses and Master's Reports

Bacterial infections continue to be a problem at the site of an indwelling medical device, and over the years, various bacterial strains have become more resistant to current antibiotic treatments. Bacterial infection at an indwelling medical device can be dangerous and affect the performance of the medical device which can ultimately lead to the failure of the device due to bacterial resistance to treatment.

Nitric Oxide (NO) has been shown to possess antibacterial properties to prevent and inhibit bacterial growth. NO releasing coatings on indwelling medical devices could provide a reduction in bacterial infections that occur at the device site …

Experimental Investigations Of Fused Filament Fabrication For Applications To Affordable Scientific Hardware, Bas Wijnen

Dissertations, Master's Theses and Master's Reports

This research aims to make science more accessible through the use of open source 3-D printers.

A new control system for CNC machines in general and 3-D printers specifically, is developed and presented that enables web-based control of 3-D tools from any Internet connected device. The system can be set up and controlled entirely from a web interface.

A tool was designed to help apply science to the developing world. The developing world remains plagued by lack of access to safe drinking water. A methodology is provided for the design, development, and technical validation of a low-cost open-source water testing …

Mechanical Testing Of Fused Filament 3-D Printed Components For Distributed Manufacturing, Nagendra Gautam Tanikella

Dissertations, Master's Theses and Master's Reports

Fused filament fabrication (FFF)-based open-source 3-D printers offer the potential of decentralized manufacturing both in developing and developed countries. Unfortunately, a severe lack of data and standards relating to material properties and printed components limit this potential. This thesis first investigates the mechanical properties of a wide-range of FFF materials and provides a database of mechanical strength of the materials tested. The results demonstrate that the tensile strength of a 3-D printed specimen depends largely on the mass of the specimen, which provides a means to estimate the strength of 3-D printed components. Then this information is used to evaluate …