Bio-integrated electronics with advanced monitoring capabilities have garnered considerable interest as a means of expanding patient care beyond traditional hospital and clinic settings. These mechanically soft microsystems, many of which are bioresorbable and wireless, have the potential to replace bulky, rigid, and wired medical technologies by matching or exceeding their...
The physical structure of chromatin has recently emerged as a key contributor to genome regulation and cellular function. Chromatin packing dictates the conformation of the 2-meter-long DNA polymer within the ~10 μm cell nucleus. This conformation can influence gene function by regulating the accessibility of molecular regulators to DNA, altering...
Before initiating a walking movement, the central nervous system forms a motor plan, a set of motor commands predicted to accomplish task-specific goals. To be effective, motor plans must be continually updated to consider an ever-changing external environment. Despite being an inherent part of walking, how the nervous system adapts...
The current view in neuroscience holds that the brain, together with its sensory and motor structures and the environment, form a closed-loop system – a sensorimotor loop – in which the brain receives information from the environment and converts it into a motor response while simultaneously making predictions about future...
Vimentin intermediate filaments (VIFs) provide mechanical integrity to cells and serve as markers of tissue origin and cell differentiation. Several non-mechanical roles for vimentin have recently been reported, including regulation of key pathways that control cell growth, cell signaling, and cell motility. Here, I present the role of vimentin in...
Shoulder (glenohumeral joint) osteoarthritis causes pain, limits daily activities, and frequently requires joint replacement surgery. In shoulder osteoarthritis, the glenoid bone surface erodes in one of two ways: symmetrically (concentric deformity) or asymmetrically (eccentric deformity). Shoulder replacements in patients with eccentric deformities fail and require additional, revision surgery more often...
Polymer and polymer/ceramic composites known as bone cements are commonly used in musculoskeletal reconstructive surgeries where bone tissue fixation, reinforcement, or void filling may be needed. Polymethylmethacrylate, PMMA, was the initial (and currently only) FDA-approved bone cement for bone-void filling applications yet faces many inherent material-based challenges that impacts its...
Myoelectric pattern recognition-based upper limb prostheses measure electromyographic (EMG) signals from the residual limb and learn to identify muscle activity patterns that correspond to intended gestures. To train an accurate pattern recognition controller, it is essential that the training signals typify signals measured in real-world scenarios. When these conditions are...
In environments ranging from natural ecosystems to living organisms, small molecule signals and nanoscale forces communicate important information regarding chemical contamination and pollution, pathogenesis, and physical stressors. As these stimuli are often well below detection limits for our own senses, we depend on biosensing technologies to monitorthem. Many biosensors operate...
Islet transplantation is a therapy in which insulin-producing beta (β) islet cells are infusedinto the liver via the portal vein to restore glycemic control. This therapy is beneficial for patients
suffering from chronic pancreatitis or type I diabetes. However, islet transplantation is not widely
implemented due to the instant blood-mediated...