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Biomedical Engineering and Bioengineering

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Wright State University

Theses/Dissertations

2016

Compact Devices

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Full-Text Articles in Engineering

Optical Redox Imaging Of Metabolic Activity, Syed Anwar Hyder Zaidi Jan 2016

Optical Redox Imaging Of Metabolic Activity, Syed Anwar Hyder Zaidi

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Fluorescence imaging can be used to determine tissue metabolism, which is an indication of the cellular functionality. Metabolic contrast is useful for the early detection of several medical conditions such as cancer, diabetes, lung diseases etc. This study aims to use fluorescence imaging to quantify NADH and FAD, which are cellular metabolic indicators. A parameter known as Redox ratio, can be used to study metabolic state of several tissue types and disease states. To quantify the Redox ratio, three fluorescence imaging systems were optimized to measure the fluorescence signal from NADH and FAD. The first system was a camera based …


Low-Cost, Wireless Optical Oximeter For Monitoring Of Brain Function In High-Risk Pediatric Population, Zahra Meghjani Jan 2016

Low-Cost, Wireless Optical Oximeter For Monitoring Of Brain Function In High-Risk Pediatric Population, Zahra Meghjani

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Nearly 4 million neonates die every year due to brain injuries, most caused by hypoxia. Neonatal ICU requires newborns with critical health conditions to be monitored continuously calling for the need of a non-invasive, compact and portable device. However, commercial devices are mostly bulky and/or expensive. The neonatal mortality is higher in under-developed countries, where such expensive and large devices are not affordable. Hence, my thesis focuses on building first generation compact, inexpensive, and wireless device that can monitor and provide feedback to clinicians during intervention. This approach is based on light absorption by oxy- and deoxy-hemoglobin chromophores. The total …