Acid Elution
Acid Elution - Related Videos
01:05
High-Performance Liquid Chromatography: Elution Process
0 Views •
2024
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
06:49
Isolating Nucleic Acids from Yeast
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2023
One of the many advantages to using yeast as a model system is that large quantities of biomacromolecules, including nucleic acids (DNA and RNA), can be purified from the cultured cells. This video will address the steps required to carry out nucleic acid extraction. We will begin by briefly outlining the growth and harvest, and lysis of yeast cells, which are the initial steps common to the isolation of all biomacromolecules. Next, we will discuss two unique purification methods for the...
06:18
A Novel Method to Determine the Longitudinal Antibacterial Activity of Drug-Eluting Materials
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Cited by 5 •
2023
Here, we present a protocol to evaluate the antibacterial efficacy of an antibiotic-eluting polymer to simulate prophylactic clinical application by using a commercially available real-time ATP-based luminescent microbial viability assay. This method enables the monitoring of the longitudinal activity of drug-eluting materials and can be widely adapted to test anti-microbial drug delivery platforms.
11:38
CN-GELFrEE - Clear Native Gel-eluted Liquid Fraction Entrapment Electrophoresis
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Cited by 11 •
2016
This protocol describes how to prepare and perform clear native gel-eluted liquid fraction entrapment electrophoresis (CN-GELFrEE), a native separation technique for non-covalent biomolecular assemblies and proteins from heterogeneous samples that is compatible with various downstream protein analysis techniques.
08:26
Design of a Biocompatible Drug-Eluting Tracheal Stent in Mice with Laryngotracheal Stenosis
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Cited by 13 •
2020
Laryngotracheal stenosis results from pathologic scar deposition that critically narrows the tracheal airway and lacks effective medical therapies. Using a PLLA-PCL (70% poly-L-lactide and 30% polycaprolactone) stent as a local drug delivery system, potential therapies aimed at decreasing scar proliferation in the trachea can be studied.
FAQs
Lowering pH disrupts noncovalent interactions that hold molecules within cells, tissues, or assay matrices. This can weaken associations between bound proteins, nucleic acids, antibodies, or other analytes and their surrounding material. Acidic conditions may also dissolve acid-sensitive components, allowing the released or solubilized material to enter a fraction that can be examined separately.
pH, exposure time, and temperature are the principal controllable factors. More acidic conditions or longer exposure may increase disruption or dissolution, while the sample’s chemical stability determines whether the recovered material remains suitable for analysis. Researchers therefore balance release efficiency against possible loss or alteration of acid-sensitive materials.
The method can release desired molecules while also affecting acid-sensitive materials in the same specimen. Its suitability therefore depends on whether the target analyte and other components tolerate the selected acidic conditions, exposure duration, and temperature. This consideration is especially important when the goal is molecular characterization rather than simple removal of bound material.
By removing bound reagents or releasing selected molecules from a sample, the technique can prepare the remaining specimen or recovered fraction for additional analysis. This is useful when one tumor specimen must support more than one investigative step. The value comes from separating components while preserving access to information that would otherwise remain associated with the original matrix.
Cancer research workflows may apply the technique to cells, tissues, tumor specimens, or assay matrices, depending on the molecules and interactions under investigation. Acid treatment can help recover proteins, nucleic acids, antibodies, or other analytes, supporting sample preparation and molecular characterization across different forms of biological material.
The recovered material can support molecular characterization of tumor specimens, while removal of bound reagents can prepare samples for later analytical steps. Because the technique separates released components from the original specimen or matrix, it can help organize complex samples for analysis and enable sequential workflows that examine different molecular features.