One-step Extraction
One-step Extraction - Related Videos
07:20
One-step Extraction and Zymographic Analysis of Bacterial Gelatinases
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2025
Proteinases are vital for bacterial pathogenesis, enabling invasion and immune evasion. Single-step extraction of cytoplasmic and membrane proteins of bacteria in their active form is harrowing. This video article demonstrates the extraction of whole cellular proteins of Leptospira for zymography analysis to detect and characterize gelatinases.
02:55
Extraction - Concepts
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2020
Extraction Extraction is a common technique used in organic chemistry to isolate a target compound. In the extraction process, a solute is transferred from one phase to another to separate it from unreacted starting materials or impurities. Extraction is also used to facilitate the isolation of a solute from a reaction solvent that is difficult to remove by evaporation, such as a solvent with a high boiling point. Generally, there are three types of extractions. First, in solid-liquid...
06:42
Extraction of Biomarkers from Sediments - Accelerated Solvent Extraction
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2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst The distribution of a group of organic biomarkers called glycerol-dialkyl glycerol-tetraethers (GDGTs), produced by a suite of archaea and bacteria, were found in modern sediments to change in a predictable manner in response to air or water temperature1,2. Therefore, the distribution of these biomarkers in a sequence of sediments of known age can be used to reconstruct the evolution of air and/or water temperature on...
12:31
A Step by Step Protocol for Subretinal Surgery in Rabbits
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Cited by 30 •
2016
Retinal pigment epithelium (RPE) replacement strategies and gene-based therapy are considered for several retinal degenerative conditions. For clinical translation, large eye animal models are required to study surgical techniques applicable in patients. Here we present a rabbit model for subretinal surgery geared towards RPE transplantation, which is versatile and cost-efficient.
12:25
A Step-by-step Method for the Reconstitution of an ABC Transporter into Nanodisc Lipid Particles
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Cited by 23 •
2012
Nanodiscs are small discoid particles that incorporate membrane proteins into a small patch of phospholipid bilayer. We provide a visual protocol that shows the step-by-step incorporation of the MalFGK2 transporter into a disc.
FAQs
An extraction reagent or solvent performs several linked tasks: it disrupts the starting matrix, solubilizes desired components, and helps separate them from contaminants. The resulting separation may rely on partitioning, precipitation, filtration, or centrifugation. Because these actions occur within one integrated treatment, reagent choice is central to whether the target enters a usable preparation for subsequent biochemical analysis.
One-step extraction can reduce sample loss and contamination opportunities by limiting handling between operations. Compared with a multistage workflow, it may also reduce processing time because extraction and separation are coordinated rather than performed as entirely separate stages. The benefit is not simply speed: fewer manipulations provide a more direct route from complex starting material to an analysis-ready sample.
The separation mechanism determines how unwanted material is removed. Partitioning, precipitation, filtration, and centrifugation represent different separation routes that can be integrated into the extraction procedure. Their inclusion allows the workflow to produce a preparation enriched for the desired components while separating them from the original complex material through the operation most appropriate to the procedure.
Target identity matters because one-step extraction is used for proteins, nucleic acids, metabolites, and other biomolecules. The extraction must therefore be matched to the component being sought and the complexity of the starting material. A preparation intended for electrophoresis may have different practical requirements from one directed to chromatography, spectroscopy, or a biochemical assay.
At a basic level, the workflow exposes the sample to a selected extraction reagent or solvent, allows matrix disruption and solubilization to occur, and then applies the integrated separation step. The recovered preparation can be collected through partitioning, precipitation, filtration, or centrifugation, depending on the procedure. This sequence keeps preparation within a single coordinated operation.
Planning begins by identifying the target molecule and the complex material containing it. The workflow then requires an extraction reagent or solvent and a compatible separation approach, such as partitioning, precipitation, filtration, or centrifugation. Finally, researchers should consider whether the recovered material is suitable for electrophoresis, chromatography, spectroscopic measurement, or a biochemical assay.
One-step extraction is useful when a sample must move from complex material to downstream measurement with limited handling. In biochemistry, the prepared material may support protein or nucleic-acid analysis, metabolite studies, electrophoresis, chromatography, spectroscopy, or biochemical assays. Its main practical value is a shorter, less manipulation-intensive preparation that can reduce sample loss and contamination opportunities.