Fluorescent Microbeads

Fluorescent microbeads are microscopic polymer or glass particles that emit light after excitation, providing visible markers for tracking and measurement in biological systems. Their fluorescence arises from embedded or surface-bound dyes, while bead size, surface chemistry, and binding groups determine how they move through or interact with experimental environments. In neuroscience, researchers use fluorescent microbeads to visualize transport, label cellular or tissue structures, and monitor fluid movement or particle localization in neural models. Because their optical signal can be detected with fluorescence microscopy, microbeads support quantitative studies of connectivity, diffusion, cellular uptake, and experimental assay performance.

Fluorescent Microbeads - Related Videos

Research

JoVE Journal - Neuroscience

Intracerebroventricular and Intravascular Injection of Viral Particles and Fluorescent Microbeads into the Neonatal Brain

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Cited by 18 •

2016

Here, we describe a simple method of intracerebroventricular and intravascular injection of viral particles or fluorescent microbeads into the neonatal mouse brain. The localization pattern of the virus and nanoparticles could be detected by microscopic evaluation or by in situ hybridization.

Research

JoVE Journal - Developmental Biology
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Microbead Implantation in the Zebrafish Embryo

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Cited by 8 •

2015

The zebrafish is an excellent model system for genetic and developmental studies. Bead implantation is a valuable tissue manipulation technique that can be used to interrogate developmental mechanisms by introducing alterations in local cellular environments. This protocol describes how to perform microbead implantation in the zebrafish embryo.

Fabrication of Amyloid-Beta-Releasing Polymer Microbeads for Modeling Alzheimer's Disease

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2025

This video demonstrates a method for fabricating polymer microbeads that encapsulate neurotoxic amyloid-beta-secreting cells. The cell-polymer suspension is processed through a microbead fabrication device, with polymer gelation achieved via calcium cross-linking, forming spherical microbeads around the cells. The polymer allows cell proliferation while allowing controlled, long-term amyloid-beta release, simulating its accumulation in Alzheimer's disease.

Rapid Magnetic-microbead Method for Efficient Purification of Low-density Neutrophils

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Cited by 1 •

2025

Low-density neutrophils (LDN) increase significantly in several diseases. LDN are usually isolated through cell sorting. We present a practical method to obtain pure and viable LDN. After density-gradient centrifugation of peripheral blood, cells are incubated with magnetic microbeads, and then LDN are separated through magnetic columns.

Research

JoVE Journal - Medicine
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A Magnetic Microbead Occlusion Model to Induce Ocular Hypertension-Dependent Glaucoma in Mice

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Cited by 71 •

2016

Here, we present a protocol to induce ocular hypertension in the murine eye that results in the loss of retinal ganglion cells as observed in glaucoma. Magnetic microbeads are injected into the anterior chamber and attracted to the iridocorneal angle using a magnet to block the outflow of aqueous humour.

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