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Articles 1 - 5 of 5
Full-Text Articles in Engineering
A Proposal For A Wirelessly Powered, Implantable Pressure Sensor And Neural Stimulator For The Control Of Urinary Incontinence, Robert N. Tucker, Christopher J. Quinkert, Pedro P. Irazoqui
A Proposal For A Wirelessly Powered, Implantable Pressure Sensor And Neural Stimulator For The Control Of Urinary Incontinence, Robert N. Tucker, Christopher J. Quinkert, Pedro P. Irazoqui
The Summer Undergraduate Research Fellowship (SURF) Symposium
47 to 53 percent of women over the age of 20 suffer from urinary incontinence, often caused by childbirth-related damage to the pelvic nerve. This uncertainty of when bladder voiding will occur causes social anxiety and can compromise quality of life. This study explores one method to restore the ability to sense the need to urinate and prevent unwanted voiding. We propose a device to measure pressure due to bladder content as the difference between pressure in the bladder and pressure in the abdominal cavity. Integrated circuits, biocompatible packaging, and wireless radiofrequency powering allow for a fully implantable device to …
Cold Atmospheric Pressure Plasmas For Food Applications, Michael V. Lauria, Russell S. Brayfield Ii, Ronald G. Johnson, Allen L. Garner
Cold Atmospheric Pressure Plasmas For Food Applications, Michael V. Lauria, Russell S. Brayfield Ii, Ronald G. Johnson, Allen L. Garner
The Summer Undergraduate Research Fellowship (SURF) Symposium
Successfully distributing shelf food requires treatment to eliminate microorganisms. Current chemical methods, such as chlorine wash, can alter food quality while only being effective for a limited time. Cold atmospheric pressure plasmas (CAPs) can eradicate the microorganisms responsible for food spoilage and foodborne illness. Optimizing CAP treatments requires understanding the reactive species generated and relating them to eradication efficiency. Recent studies have used optical emission spectroscopy (OES) to determine the species generated in a sealed package that would hold food. In this study,we supplement the OES results with optical absorption spectroscopy (OAS) using the same gases (helium, nitrogen, compressed air, …
Fabrication And Evaluation Of Magnetic Micro Actuators For Implantable Self-Clearing Glaucoma Drainage Devices, Haritha Ramadorai, Hyunsu Park, Hyowon Lee
Fabrication And Evaluation Of Magnetic Micro Actuators For Implantable Self-Clearing Glaucoma Drainage Devices, Haritha Ramadorai, Hyunsu Park, Hyowon Lee
The Summer Undergraduate Research Fellowship (SURF) Symposium
According to the World Health Organization, glaucoma is the second leading cause of blindness in the world. It currently affects more than 2.7 million people in the United States alone and over 79.6 million people worldwide are estimated to be inflicted by this debilitating disease by 2020. Glaucoma patients are often characterized with elevated intraocular pressure (IOP) and are treated with implantation of glaucoma drainage devices (GDD) to maintain optimum IOP. Although initially effective at delaying glaucoma progression, contemporary GDD often lead to numerous complications and only 50% of implanted devices remain functional after 5 years. Biofouling is seen to …
Pathway By Which Vagus Nerve Stimulation Of B Fibers Affects Heart Rate, Kelsey Wasilczuk, Matthew Ward, Pedro Irazoqui
Pathway By Which Vagus Nerve Stimulation Of B Fibers Affects Heart Rate, Kelsey Wasilczuk, Matthew Ward, Pedro Irazoqui
The Summer Undergraduate Research Fellowship (SURF) Symposium
Heart failure (HF) affects over 5 million adults in the United States. Many HF patients have a high resting heart rate, which is correlated with a high mortality rate. In recent years, vagus nerve stimulation (VNS) has become an increasingly researched therapy to reduce the resting heart rate of HF patients. However, current dosage given during VNS is increased incrementally at the doctor’s office until side effects present themselves in a patient. In addition, the means by which the therapy works is not completely understood. To better understand the therapy’s mechanisms, the right cervical vagus nerve of several Long Evans …
Mechanical Reliability Of Implantable Polyimide-Based Magnetic Microactuators For Biofouling Removal, Christian G. Figueroa-Espada, Qi Yang, Hyowon Lee
Mechanical Reliability Of Implantable Polyimide-Based Magnetic Microactuators For Biofouling Removal, Christian G. Figueroa-Espada, Qi Yang, Hyowon Lee
The Summer Undergraduate Research Fellowship (SURF) Symposium
Hydrocephalus is a neurological disorder that typically requires a long-term implantation of a shunt system to manage its symptoms. These shunt systems are notorious for their extremely high failure rate. More than 40% of all implanted shunt systems fail within the first year of implantation. On average, 85% of all hydrocephalus patients with shunt systems undergo at least two shunt-revision surgeries within 10 years of implantation. A large portion of this high failure rate can be attributed to biofouling-related obstructions and infections. Previously, we developed flexible polyimide-based magnetic microactuators to remove obstructions formed on hydrocephalus shunts. To test the long-term …