Ethanol Rehydration
Ethanol Rehydration - Related Videos
02:43
Deparaffinization and Rehydration of Tissue Sections: A Two-step Procedure to Remove Paraffin Wax from FFPE Tissue Slides Followed by Tissue Rehydration
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2023
In this video, we demonstrate the processing of FFPE or formalin-fixed paraffin-embedded sections obtained from gastrointestinal tumor tissue. The deparaffinization and rehydration steps allow the processing of the tissue specimen for subsequent analytical applications.
10:11
Microdialysis of Ethanol During Operant Ethanol Self-administration and Ethanol Determination by Gas Chromatography
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Cited by 13 •
2012
A method to determine the time course of ethanol concentration in the brains of rats during operant ethanol self-administration is described. Gas chromatography with flame ionization detection is used to quantify ethanol in the dialysate samples, because it has the sensitivity required for the small volumes that are generated.
08:45
Forming Giant-sized Polymersomes Using Gel-assisted Rehydration
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Cited by 5 •
2016
We present a protocol to rapidly form giant polymer vesicles (pGVs). Briefly, polymer solutions are dehydrated on dried agarose films adhered to coverslips. Rehydration of the polymer films results in rapid formation of pGVs. This method greatly advances the preparation of synthetic giant vesicles for direct applications in biomimetic studies.
07:34
Biofuels: Producing Ethanol from Cellulosic Material
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In this experiment, cellulosic material (such as corn stalks, leaves, grasses, etc.) will be used as a feedstock for the production of ethanol. The cellulosic material is first pretreated (ground and heated), digested with enzymes, and then fermented with yeast. Ethanol production is monitored using an ethanol probe. The experiment can be extended to optimize ethanol production by varying the feedstock used,...
11:15
A Simple Way to Measure Ethanol Sensitivity in Flies
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Cited by 33 •
2011
A simple assay to measure the sedating effects of ethanol on Drosophila flies, based on the loss of righting reflex, is described.
FAQs
Ethanol rehydration proceeds through solvent exchange, with water entering while ethanol leaves the specimen by diffusion. A graded sequence of decreasing ethanol concentrations moderates this transition rather than imposing an abrupt change in solvent conditions. That controlled progression helps limit structural distortion, making preserved cell or tissue morphology more suitable for later staining or microscopy.
A graded series matters because each step reduces the difference between the specimen’s current solvent environment and the next aqueous condition. Smaller transitions can reduce abrupt physical changes that distort cells or tissue structure. This is especially relevant when morphology must remain interpretable for microscopy, staining, immunolabeling, or downstream analysis.
Ethanol concentration, the time allowed at each stage, and careful sample handling are the main controllable factors identified for this process. Concentration determines the size of each solvent transition, timing supports diffusion-based exchange, and handling helps protect the specimen from avoidable structural damage. Controlling these variables improves consistency between biological samples.
A typical workflow begins with a specimen that has undergone dehydration or alcohol fixation, followed by exposure to a graded series of decreasing ethanol concentrations. The sequence progressively replaces ethanol with water or an aqueous solution. Once the exchange is complete, the sample can proceed to aqueous staining, microscopy, immunolabeling, or another compatible analysis.
Tissue sections, cell samples, and other biological specimens that contain ethanol after dehydration or alcohol fixation can require this preparation step. Replacing ethanol with an aqueous environment makes such samples compatible with procedures based on water or aqueous solutions. The approach therefore supports preparation across microscopy and other downstream biological analyses.
Careful rehydration helps preserve morphology and improves the consistency of results obtained from the specimen. Researchers can then examine tissue or cellular structure by microscopy, apply aqueous stains, perform immunolabeling, or continue with downstream analysis. Better-preserved structure supports more reliable interpretation because observed features are less likely to reflect solvent-related distortion.