Fiber Bundle Activation
Fiber Bundle Activation - Related Videos
08:50
Multiplexed Fluorescent Microarray for Human Salivary Protein Analysis Using Polymer Microspheres and Fiber-optic Bundles
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Cited by 4 •
2013
We describe a procedure for profiling salivary proteins using multiplexed microsphere-based antibody arrays. Monoclonal antibodies were covalently linked to fluorescent dye-encoded 4.5 μm polymer microspheres using carbodiimide chemistry. The modified microspheres were deposited in fiber-optic microwells to measure protein levels in saliva using fluorescence sandwich immunoassays.
06:08
Preparation and Immunofluorescence Staining of Bundles and Single Fiber Cells from the Cortex and Nucleus of the Eye Lens
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2023
This protocol describes methods to prepare peripheral, mature, and nuclear eye lens fiber cells for immunofluorescence staining to study complex cell-to-cell interdigitations and the membrane architecture.
10:35
Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis
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2016
The assembly and use of a multimodal microendoscope is described which can co-register superficial tissue image data with tissue physiological parameters including hemoglobin concentration, melanin concentration, and oxygen saturation. This technique can be useful for evaluating tissue structure and perfusion, and can be optimized for individual needs of the investigator.
07:47
Directly Measuring Forces Within Reconstituted Active Microtubule Bundles
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Cited by 1 •
2022
Here, we present a protocol for reconstituting microtubule bundles in vitro and directly quantifying the forces exerted within them using simultaneous optical trapping and total internal reflection fluorescence microscopy. This assay allows for nanoscale-level measurement of the forces and displacements generated by protein ensembles within active microtubule networks.
08:53
Artificial Lung Device Priming for In Situ Fiber Bundle Surface Grafting
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2025
This study investigated the antifouling activity of artificial lung hollow fibers coated by priming the lung device. While this surface modification of fibers approach is practical, the effectiveness of the coating process depends on the graft coverage across fiber mat layers within the bundle.
FAQs
An applied electrical field changes the transmembrane voltage of excitable fibers, the voltage difference across each cell membrane. When that change reaches fibers within the bundle, it can recruit nerve or muscle fibers, initiate signal propagation, and, in muscle-containing systems, produce contraction. This links the stimulation input to a measurable functional response.
Fiber bundle activation is shaped by three controllable variables: stimulation strength, timing, and spatial distribution. Strength influences how many fibers are recruited, timing affects when responses occur and how closely they align, and spatial distribution determines which regions or fibers receive the field. Together, these variables control recruitment patterns, synchronization, and overall output.
Researchers can assess electrical, mechanical, or physiological responses after stimulation. Electrical measurements can indicate signal transmission, while mechanical responses can reveal contraction and coordinated force production. Physiological responses provide another view of how the tissue behaves as a functional system. Comparing these outcomes helps connect cellular excitation with tissue-level performance.
A controlled study applies an electrical field while varying stimulation strength, timing, or spatial distribution. Researchers then observe the resulting electrical, mechanical, or physiological response and relate it to the stimulation pattern. This workflow allows them to characterize recruitment, synchronization, signal propagation, and contraction without treating the bundle response as a single unexplained measurement.
The method helps researchers characterize engineered tissues by testing whether organized fibers respond predictably to controlled stimulation. It also supports evaluation of biomaterials, because the resulting electrical, mechanical, or physiological outputs can reveal how a material-associated tissue system performs. These observations inform studies of tissue organization, signal transmission, and functional behavior.
Controlled activation provides a way to examine how bioelectronic devices interact with nerve or muscle fibers. Researchers can study whether stimulation produces appropriate recruitment, timing, signal propagation, or contraction, then use those observations in neuromuscular interfaces, rehabilitation technologies, and assistive systems. The same framework also helps evaluate device performance in relation to functional tissue output.