Capillary Fragment Isolation
Capillary Fragment Isolation - Related Videos
04:48
Automated Capillary Electrophoresis Based Fragment Size Distribution Analysis of cfDNA: A DNA Microchip-based Method to Study Size Distribution of DNA Fragments Isolated from Biofluids
0 Views •
2025
In this video, we analyze the size distribution of cell-free DNA or cfDNA fragments using automated capillary electrophoresis. This technique helps gain insights into the profile of DNA fragments released by cancer cells during apoptosis.
06:28
Isolation of Cerebral Capillaries from Human Brain: An Optimized Method to Extract Cerebral Capillaries from Human Brain Tissue
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2025
This video presents the isolation of cerebral capillaries from a fresh human brain tissue. The isolated capillaries can then be used to generate an ex vivo blood brain barrier model.
04:21
Microfluidic Capillary Electrophoresis for Fragment Sizing of PCR Products: A Microchip-Based Electrophoretic Separation Technique to Separate DNA Fragments Based on Size
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2025
This video describes the microfluidic capillary electrophoresis technique to separate PCR amplicons based on their size. This technique helps in fragment sizing using fluorescent dyes and standard molecular size markers.
07:09
Isolation of Murine Adipose Tissue-derived Microvascular Fragments as Vascularization Units for Tissue Engineering
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Cited by 58 •
2017
We present a protocol to isolate adipose tissue-derived microvascular fragments that represent promising vascularization units. They can be rapidly isolated, do not require in vitro processing and, thus, may be used for one-step prevascularization in different fields of tissue engineering.
03:45
Purifying Capillaries From a Porcine Brain
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2025
This video demonstrates the isolation of capillaries from fresh porcine brains. The process involves removing the meninges, isolating the grey matter from the brain tissue, homogenizing and filtering the grey matter to isolate the capillaries, and finally using enzymatic digestion to purify the capillaries further.
FAQs
Enzymatic digestion helps release vessel segments from surrounding tissue after tissue disruption breaks the sample into smaller components. This combined treatment makes capillary-sized material accessible to the subsequent enrichment step. Its importance is procedural: separating vessel fragments from intact tissue, larger components, and debris creates a more focused preparation for examining microvascular structure and composition.
Filtration and density-based centrifugation provide complementary ways to enrich the desired fraction. Filtration separates material according to how components move through a filter, whereas centrifugation uses density differences to separate fractions. Both approaches aim to retain capillary-sized fragments while reducing larger tissue components and debris, improving the focus of subsequent structural or functional studies.
An isolated preparation allows investigators to examine endothelial cells and basement membranes in a tractable system rather than only within intact tissue. It also supports investigation of angiogenic signaling and microvascular injury. These focused analyses can connect structural and compositional changes in small vessels with broader questions about microvascular function and disease-related vascular damage.
A typical workflow starts with tissue disruption, continues with enzymatic digestion, and then applies filtration or density-based centrifugation. The early steps release vessel material from the tissue, while the later separation enriches capillary-sized fragments and removes larger components and debris. The resulting fraction can then be examined for structure, composition, or function.
Capillary fragment preparations can support studies of diabetes, cancer, inflammation, and vascular disease. In each setting, the isolated material provides a focused way to investigate microvascular structure, endothelial cells, basement membranes, angiogenic signaling, or injury. Researchers can therefore use the preparation to examine disease-related changes in the microcirculation and assess how treatments affect those changes.
Because the fragments retain material relevant to small-vessel structure and biology, they provide a focused preparation for examining angiogenic signaling and microvascular injury. Investigators can relate these findings to endothelial cells and basement membranes, then consider how disease or treatment influences the microcirculation. This makes the method useful for connecting cellular or structural observations with medical research questions.