Active Cantilever Arrays
Active Cantilever Arrays - Related Videos
05:04
Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays for High-Throughput Large-Scale Sample Inspection
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Cited by 5 •
2023
Large-scale sample inspection with nanoscale resolution has a wide range of applications, especially for nanofabricated semiconductor wafers. Atomic force microscopes can be a great tool for this purpose, but are limited by their imaging speed. This work utilizes parallel active cantilever arrays in AFMs to enable high-throughput and large-scale inspections.
02:05
Measuring the Electrophysiological Activity of Neuronal Networks Using Micro-Electrode Arrays
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2025
The video demonstrates how to use a microelectrode array (MEA) to record the electrophysiological activity of neurons derived from human induced pluripotent stem cells (hiPSCs). Electrophysiological activity from a multiwell MEA containing a neuron-astrocyte co-culture is recorded to detect action potentials from multiple neurons in the network, confirming the successful differentiation of hiPSCs into neurons.
09:48
Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array
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Cited by 2 •
2015
We have developed an in vitro unfolded hippocampus which preserves CA1-CA3 array of neurons. Combined with the penetrating micro-electrode array, neural activity can be monitored in both the longitudinal and transverse orientations. This method provides advantages over hippocampal slice preparations as the propagation in the entire hippocampus can be recorded simultaneously.
03:25
Recording Neural Activity of Unfolded Hippocampal Tissue Using Penetrating Microelectrode Array
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2025
This video demonstrates the procedure to set up a recording chamber with a penetrating microelectrode array (PMEA) to capture neural signals from an unfolded hippocampus. This method allows us to study the speed and direction of propagation of neural activity within the unfolded hippocampus in vitro.
01:13
Impact Loading on a Cantilever Beam
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2024
The analysis of a cantilever beam with a circular cross-section subjected to impact loading at its free end illustrates the conversion of potential energy from a dropped object into kinetic energy, which is then absorbed by the beam as strain energy. This process is crucial for understanding how materials behave under dynamic loads, which is important in fields such as construction and aerospace. When an object is dropped onto the free end of a cantilever, its potential energy due to gravity is...
FAQs
Two signal channels capture different mechanical responses: deflection indicates how far a beam bends under a stimulus, whereas resonant frequency tracks the frequency at which it vibrates or resonates. Selecting the response that matches the measurement can distinguish direct displacement information from frequency-based information, allowing the array to provide measurements suited to chemical, biological, force, or mass sensing.
Actuators convert control signals into beam motion, with piezoelectric, electrostatic, or thermal elements providing distinct ways to drive the structure. Because individual beams can be controlled, an engineer can activate selected locations rather than moving the entire array uniformly. This supports selective analysis and adaptive sensing, while also enabling the same compact device to perform controlled mechanical operations.
Active Cantilever Arrays differ from sensing structures that only register mechanical changes because they can both detect a response and impose motion. That two-way capability lets the array adjust which beams operate and how they move, rather than treating every measurement as passive observation. In engineering systems, this supports adaptive sensing, selective analysis, and integrated positioning or scanning functions.
An engineering workflow begins by exposing the selected beams to a stimulus, then observing bending, vibration, or resonance. Integrated actuators can drive motion during the measurement, and the resulting deflection or resonant-frequency change becomes the readout. Repeating this sequence across individually controlled beams allows parallel measurements or operations while preserving location-specific information across the array.
Researchers can interpret array outputs as changes in deflection or resonant frequency, depending on the mechanical response being monitored. Those signals support chemical and biological detection as well as force and mass measurement. Since multiple beams operate in parallel, the system can collect measurements from many sensing locations at once, increasing throughput without removing the ability to analyze selected beams.
In engineering, these arrays are useful when a compact platform must combine measurement with mechanical control. Applications include microfluidic control, scanning systems, positioning systems, and compact lab-on-a-chip technologies. Their parallel layout supports high-throughput, spatially resolved operation, while beam-level control allows the system to target particular regions or adapt sensing behavior to the task.