Washing Procedure
Washing Procedure - Related Videos
03:02
Urine Depletion and Bladder Rinsing in Mouse Model: A Catheter-based Procedure to Empty and Wash Murine Urinary Bladder
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2023
In this video, we describe a catheter-based procedure to empty and rinse the urinary bladder of a mouse model. The prepped mouse can then be used for further experimental procedures.
00:52
Washing, Drying, and Ignition of Precipitates
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2024
After filtration, the precipitate is washed to remove coprecipitated impurities and any remaining mother liquor. Colloidal precipitates, such as silver chloride, are washed with an electrolyte (such as dilute nitric acid) to prevent the peptization of the precipitate. In the case of slightly soluble precipitates, the wash solution contains a common ion to reduce solubility. Lead sulfate, which is slightly soluble in water, is washed with dilute sulfuric acid. Similarly, wash solutions may be...
06:46
Pulsed Laser Diode-Based Desktop Photoacoustic Tomography for Monitoring Wash-In and Wash-Out of Dye in Rat Cortical Vasculature
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Cited by 9 •
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A compact pulsed laser diode-based desktop photoacoustic tomography (PLD-PAT) system is demonstrated for high-speed dynamic in vivo imaging of small animal cortical vasculature.
07:06
Preparation of Washed Human Platelets for Quantitative Metabolic Flux Studies
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2025
Platelet metabolism is of interest, particularly as it relates to the role of platelet hyper- and hypoactivity in bleeding and thrombotic disorders. Isolating platelets from plasma is necessary for some metabolic assays; presented here is a method for isolating of intracellular metabolites from washed platelets.
09:13
Turbidimetry on Human Washed Platelets: The Effect of the Pannexin1-inhibitor Brilliant Blue FCF on Collagen-induced Aggregation
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Cited by 5 •
2017
We describe a straightforward method for the isolation of washed platelets from human blood followed by agonist-induced platelet aggregation measurements by turbidimetry. As an example we apply this method for studying the aggregation response of human platelets to collagen after a pre-incubation with the Pannexin1 channel inhibitor Brilliant Blue FCF.
FAQs
Buffer composition, volume, temperature, and wash number jointly determine how effectively unwanted material is displaced without compromising the retained sample. A compatible buffer helps preserve sample conditions, while sufficient volume and repeated rinsing can reduce residual reagents or contaminants. These variables must therefore be controlled when comparing biological samples.
Gentle mixing helps release unbound cells, particles, reagents, or contaminants from the sample, but the material of interest must remain recoverable during the subsequent separation step. The chosen separation approach, such as centrifugation, filtration, settling, or aspiration, determines how the rinsed sample is isolated for downstream analysis.
Changing the number of washes can alter both sample recovery and sample integrity, so it is not merely a routine counting step. A procedure should specify the number of rinses and apply it consistently across samples. Standardization is especially important when washing precedes measurements where reproducibility and interpretation depend on comparable preparation.
Once rinsing and gentle mixing are complete, the sample can be recovered by settling, centrifugation, filtration, or aspiration. These alternatives provide ways to separate the retained material from the wash step before analysis. Naming the separation method in a protocol also makes the workflow clearer and more reproducible.
A washing procedure supports several biological workflows, including cell culture, microscopy, immunoassays, molecular biology, and protein purification. In each setting, removing residual unbound material helps limit background interference. The resulting preparation can improve the accuracy and interpretability of downstream observations, measurements, or analyses in those workflows.
By reducing background interference, a well-controlled wash can make downstream results easier to interpret and compare. This matters in biology because residual cells, particles, reagents, or contaminants may obscure the material being examined. Consistent washing therefore supports more accurate measurements and more reproducible findings across samples and experiments.