Stimuli-responsive Device
Stimuli-responsive Device - Related Videos
10:35
Designing Microfluidic Devices for Studying Cellular Responses Under Single or Coexisting Chemical/Electrical/Shear Stress Stimuli
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Cited by 4 •
2016
Micro-fabricated devices integrated with fluidic components provide an in vitro platform for cell studies mimicking the in vivo micro-environment. We developed polymethylmethacrylate-based microfluidic chips for studying cellular responses under single or coexisting chemical/electrical/shear stress stimuli.
12:12
Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm
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Cited by 4 •
2014
The distractor-response binding paradigm is described. It can be used to shed light on the influence irrelevant stimuli, competing with targets for a response, can have on human action. Both response retrieval effects and distractor inhibition effects can be analyzed within the paradigm.
02:54
Escape Response Assay: A Method to Study the Response of Zebrafish Larva to Touch Stimuli
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2023
This video describes the touch-evoke response assay, which measures the response of the zebrafish larva to touch stimuli.
07:34
A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions
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Cited by 4 •
2014
To elucidate the complex transition from Local Field Potentials (LFPs) to spikes a suitable stimulator for light mechanical peripheral stimuli was built. As an application, the spiking activities recorded from somatosensory cortex were analyzed by a multi-objective optimization strategy. The results demonstrated that the proposed stimulator was able to deliver tactile stimuli with millisecond and millimeter precisions.
02:29
Measurement of Natural Killer Cell Migration in Response to Chemotactic Stimuli
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2025
This video demonstrates a method to study natural killer (NK) cell migration through a porous membrane insert system in response to chemoattractants. This method enables quantitative analysis of NK cell migration using flow cytometry.
FAQs
Its central mechanism links environmental recognition to a controlled change in the device. A biological cue, such as altered pH, temperature, chemical concentration, light, or mechanical force, is detected by a responsive material or sensor. That detection changes the system’s structure or properties, which can produce movement, generate a measurable signal, or initiate compound release.
The response depends on which environmental variable the engineered system is designed to recognize and how that recognition is coupled to function. Changes in pH, temperature, chemical concentration, light, or mechanical force can therefore lead to distinct outputs, including structural alteration, signal generation, movement, or release. This coupling allows device behavior to match a selected biological cue.
These systems can connect a detected environmental change with the release of a therapeutic compound. Because the response occurs in relation to a stimulus, delivery can be localized and time-dependent rather than presented as an unchanging output. In biological settings, that behavior helps align compound release with conditions at a selected site or with changes occurring over time.
Development begins by identifying the biological cue that should control the response, such as pH, temperature, a chemical concentration, light, or mechanical force. Researchers then pair a responsive material or sensor with a desired output, such as signal generation, movement, or therapeutic release. The resulting system can be evaluated according to how effectively it interacts with its biological setting.
They are useful when a biological event must be converted into a measurable signal. The device recognizes a relevant environmental change and produces an output that can be detected, allowing biological conditions to be monitored through engineered system behavior. This role makes responsive devices valuable for biosensing applications in which dynamic biological information is more important than a fixed measurement.
Applications extend beyond biosensing to localized drug delivery, tissue engineering, wearable biotechnology, and autonomous biomedical systems. In tissue engineering, responsiveness can help engineered materials interact dynamically with their surroundings. Wearable and autonomous systems likewise benefit from adaptive behavior, while therapeutic designs use stimulus-linked release to provide localized, time-dependent delivery in living organisms.