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Converting Vertical Vibration of a Texture Ratchet into Horizontal Drop Motion
A texture ratchet is an anisotropic, periodic, microstructured surface that propels drops when vibrated with a sinusoidal signal at certain frequencies and amplitudes. For each input frequency near the resonant frequency of a drop, there is a threshold amplitude beyond which the drop starts to move. In this thesis, we study ...
Flow Mechanotransduction Response in Endothelial Cell Monolayers and Platelets
Blood flow through the cardiovascular system forms many spatiotemporally dynamic flow fields. This is due to the naturally pulsatile motion of the cardiac cycle, the inherent elastic behavior of arteries and the collapsibility of veins, and changes in activity levels throughout the day leading to changes in flow rate. Shear ...
Development of a Custom Data-Logger for Wired and Wireless Collection of Prosthetic Socket Data and Its Uses in Volume Management Strategies
Transtibial amputee residual limbs shrink and swell throughout the day for a variety of reasons. If an amputee does not properly regulate their limb fit due to volume changes, then ulcers, irritation and other maladies can result. Stump socks are by far the cheapest way to manage volume. However evidence suggests that improper ...
Porous membranes for interfacing microfluidics with cell cultures
The sensing of chemical gradients plays an important role in the guidance of cells for tissue development, migration of cells in the immune system, and human disease. We have developed a microfluidic transwell insert for generating concentration gradients in a user-friendly and modular format that is compatible with conventional ...
Controlled Coronal Stiffness Prosthetic Ankle for Improving Balance on Uneven Terrain
Background For lower limb amputees, quality of life is directly related to the functionality of their prosthetic devices. Uneven terrain can cause significant disturbances to an individual's gait. Disturbances with significant inversion or eversion are more likely to cause imbalance than sagittal plane disturbances, yet ...