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While polymeric fabrication processes, including recent advances in additive manufacturing, have revolutionized manufacturing, little work has been done on effective sensing elements compatible with and embedded within polymeric structures. In this paper, we describe the development and evaluation of two important sensing modalities for embedding in polymeric mechatronic and robotic mechanisms: multi-axis flexure joint angle sensing utilizing IR phototransistors, and a small (12 mm), three-axis force sensing via embedded silicon strain gages with similar performance characteristics as an equally sized metal element based sensor.
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http://dx.doi.org/10.3390/s140303861 | DOI Listing |
Bioinspir Biomim
September 2025
Mechanical Engineering, University of Massachusetts Dartmouth, 285 Old Westport Road, Dartmouth, Massachusetts, 02747-2300, UNITED STATES.
Harbor seals possess a remarkable ability to detect hydrodynamic footprints left by moving objects, even long after the objects have passed, through interactions between wake flows and their uniquely shaped whiskers. While the flow-induced vibration (FIV) of harbor seal whisker models has been extensively studied, their response to unsteady wakes generated by upstream moving bodies remains poorly understood. This study investigates the wake-induced vibration (WIV) of a flexibly mounted harbor seal-inspired whisker positioned downstream of a forced-oscillating circular cylinder, simulating the hydrodynamic footprint of a moving object.
View Article and Find Full Text PDFIEEE Trans Neural Syst Rehabil Eng
September 2025
Force prediction is crucial for functional rehabilitation of the upper limb. Surface electromyography (sEMG) signals play a pivotal role in muscle force studies, but its non-stationarity challenges the reliability of sEMG-driven models. This problem may be alleviated by fusion with electrical impedance myography (EIM), an active sensing technique incorporating tissue morphology information.
View Article and Find Full Text PDFMol Biol Rep
September 2025
Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India.
Neuroinflammation, a vital protective response for tissue homeostasis, becomes a detrimental force when chronic and dysregulated, driving neurological disorders like Alzheimer's, Parkinson's, and Huntington's diseases. Potassium (K) channels maintain membrane potential and cellular excitability in neurons and glia within the intricate CNS signaling network. Neuronal injury or inflammation can disrupt K channel activity, leading to hyperexcitability and chronic pain.
View Article and Find Full Text PDFAdv Mater
September 2025
Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland.
AlN is a core material widely used as a substrate and heat sink in various electronic and optoelectronic devices. Introducing luminescent properties into intrinsic AIN opens new opportunities for next-generation intelligent sensors, self-powered displays, and wearable electronics. In this study, the first evidence is presented of AlN crystals exhibiting satisfactory mechanoluminescence (ML), photoluminescence (PL), and afterglow performance, demonstrating their potential as novel multifunctional optical sensors.
View Article and Find Full Text PDFSmall Methods
September 2025
Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China.
Understanding the brain's complexity and developing treatments for its disorders necessitates advanced neural technologies. Magnetic fields can deeply penetrate biological tissues-including bone and air-without significant attenuation, offering a compelling approach for wireless, bidirectional neural interfacing. This review explores the rapidly advancing field of magnetic implantable devices and materials designed for modulation and sensing of the brain.
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