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last updated: January 14, 2020
Derek gained his Bachelor’s Degree in Animal Physiology and Nutrition from the University of Leeds.
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Apoptosis, often called programmed cell death, is a carefully regulated process that is part of normal development and homeostasis. Apoptosis is morphologically and biochemically distinct from necrosis, which is conversely called accidental cell death. Dysregulation of apoptosis is implicated in disease states such as cancer, autoimmune disease and degenerative conditions. Apoptosis consists of an orderly…
In many biological experiments the question that a researcher wants to ask is – ‘do some or all of my cells express a particular protein?’ There are many ways of doing this, which you will be familiar with e.g. Western blotting, immunoprecipitation, microscopic examination of stained cells and even mass spectrometry. Using Flow Cytometry to…
Flow cytometry remains unparalleled as a single-cell analysis technology. The ability to analyze 14 or more fluorescent parameters on a million cells or more allows for detailed understanding of complex biological processes. The Problem With Traditional Flow Cytometry One limitation of flow cytometry is the reliance on fluorescent tags. Even with careful panel design, loss…
“It is the weight, not numbers of experiments that is to be regarded.” Isaac Newton Read any flow cytometry protocol and somewhere near the beginning will state something to the effect of ‘Place 1 million cells into a tube.’ The question is, faced with that special sample for THE experiment, how do you count cells…
What is one of the first steps of the flow cytometer start-up routine? To check if the cytometer is in good shape, of course! Everyone wants to run on a reliable instrument, and assessing the daily performance of the instrument show us its behaviour over time and allows us to react fast in case of…
If you have sorted samples or phenotyped cells by surface expression of proteins, you’ve probably wondered how each cell is sorted or phenotyped in a flow cytometer? This question seems trivial, but in reality it took a while for engineers to figure it out. Before I get into today’s topic on “hydrodynamic focusing,” I’ll walk…
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