Drug Solution Assembly
Drug Solution Assembly - Related Videos
05:08
Solubility of Hydrophobic Compounds in Aqueous Solution Using Combinations of Self-assembling Peptide and Amino Acid
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Cited by 4 •
2017
This protocol describes a clinically-applicable means of dissolving hydrophobic compounds in an aqueous environment using combinations of self-assembling peptide and amino acid solutions. Our method resolves a major limitation of hydrophobic therapeutics, which lack safe, efficient means of solubility and delivery methods into clinical settings.
01:16
Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters
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2026
The pharmacogenetics of drug transporters is increasingly recognized as a critical factor influencing interindividual variability in drug absorption, distribution, and elimination. These membrane-bound proteins regulate drugs' movement across cellular barriers by actively pumping them out (efflux) or facilitating their uptake (influx). Among the major transporter families, ATP-binding cassette (ABC) and solute carrier (SLC) transporters play particularly prominent roles. Genetic polymorphisms...
11:36
Assembly, Loading, and Alignment of an Analytical Ultracentrifuge Sample Cell
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Cited by 21 •
2009
The analytical ultracentrifuge (AUC) sample cell holds sample and reference buffer and during experiments and is exposed to high vacuum and rotor speeds up to 60,000 rpm. This video will demonstrate the rigorous attention to detail necessary for assembly, loading and alignment of this very important component of an AUC experiment.
05:10
Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System
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Cited by 4 •
2016
Here we describe a protocol using the web-based drug repurposing hypothesis generation tool: "RE:fine Drugs." This protocol can be modified to a user's preferences at the level of the query type (gene, drug or disease) and/or the range of available advanced options.
09:49
Solutions and Concentrations
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2023
Source: Laboratory of Dr. Michael Evans — Georgia Institute of Technology A solution is a homogeneous mixture containing some components in small amounts, called solutes, and one component in a large amount, called the solvent. Solid-liquid solutions contain one or more solid solutes dissolved in a liquid solvent. Solutions are ubiquitous in chemistry: they are used to store and handle small amounts of material, carry out chemical reactions, and develop materials with controllable properties.
FAQs
Concentration control determines the actual drug exposure received by each sample. Accurate measurement and final volume adjustment help ensure that comparisons among treatments reflect biological responses rather than differences in preparation. This consistency is especially important for dose-response measurements, where an incorrect concentration can shift the apparent effect and increase variability across cell treatments, animal studies, or biochemical assays.
Solvents and excipients support drug dissolution or dispersion, while pH adjustment may be needed to produce a suitable and stable preparation. These components influence whether the drug remains uniformly distributed during use. When their roles are not controlled, the solution may become inconsistent or unstable, making observed biological effects harder to interpret and potentially introducing preparation-related artifacts.
Precipitation can reduce the amount of drug available in the intended solution and create uneven exposure between samples. Contamination can introduce additional biological or chemical effects unrelated to the drug being studied. Maintaining uniformity and sterility therefore protects experimental validity, helping researchers distinguish genuine pharmacological or biochemical responses from artifacts caused by poor solution quality.
A controlled workflow begins with accurately measuring the active pharmaceutical ingredient and selected solvent or excipients. The drug is then dissolved or dispersed, after which the preparation can be brought to its defined final volume. If required, researchers adjust pH and maintain conditions that support uniformity, stability, and sterility before applying the solution to an experiment.
Researchers should monitor component measurements, whether the drug has dissolved or dispersed uniformly, the final volume, and pH when adjustment is required. They should also maintain conditions that support stability and sterility. Reviewing these factors before treatment helps identify preparation problems that could alter drug exposure, produce precipitation, or confound results in biological assays.
The process is important whenever researchers need consistent drug exposure in cell treatments, animal studies, biochemical assays, or pharmacological experiments. A properly prepared solution supports comparable treatment conditions and more reliable dose-response measurements. It also helps separate true biological effects from variability caused by inaccurate concentration, contamination, precipitation, or other preparation-related artifacts.