Tissue Washing
Tissue Washing - Related Videos
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 •
2019
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.
09:38
Isolation and Purification of Plant Extracellular Vesicles from Arabidopsis Leaves Using an Optimized Apoplastic Wash Collection Method
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2026
This protocol describes an optimized method for isolating extracellular vesicles (EVs) from Arabidopsis thaliana leaves to support downstream molecular and functional analyses.
FAQs
Repeated fluid replacement maintains a concentration gradient between the specimen and its surrounding solution. Soluble substances therefore diffuse outward rather than remaining distributed within the tissue. Gentle agitation supports exchange between the tissue surface and the wash fluid while avoiding unnecessarily harsh handling. This combination helps clear unwanted material while preserving tissue quality for later analysis.
A compatible buffered solution provides the washing environment in which the specimen is immersed. Compatibility matters because the wash must support tissue preservation while allowing blood, fixative, debris, and other soluble contaminants to leave the sample. Buffer selection is therefore part of sample preparation, especially when the washed tissue will undergo staining, labeling, microscopy, or molecular analysis.
Wash conditions must balance contaminant removal against preservation of specimen structure. Inadequate washing can leave background-producing material or carryover that interferes with downstream measurements. Conversely, poorly controlled handling may contribute to tissue distortion, undermining later interpretation. The useful endpoint is not maximal washing, but sufficient reduction of unwanted substances while retaining a specimen suitable for the planned assay.
The specimen is placed in a compatible buffered solution and gently agitated. The wash fluid is then replaced repeatedly so the concentration gradient remains effective and soluble contaminants continue moving out of the tissue. After this preparation, the sample can proceed to the selected downstream workflow. The endpoint should reflect the need to reduce background and carryover without compromising tissue quality.
Tissue washing can precede histological processing, staining, immunolabeling, microscopy, or molecular assays. Its contribution differs by workflow: lowering residual contaminants can reduce background signal and carryover, making observations or measurements more reliable. This is particularly relevant when remaining soluble material could interfere with visualization or molecular readouts. Washing therefore functions as a preparatory control for multiple analytical formats.
In biology, the value of this preparation step lies in producing tissue that is cleaner and more suitable for reliable evaluation. Blood, fixative, debris, or other soluble residues can obscure signals or be carried into later steps. Controlling their removal improves sample readiness while preserving tissue needed for structural or molecular evaluation, supporting more dependable tissue-based research and diagnostic workflows.