Related Experiment Video
Updated: Jan 27, 2026
07:07
Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology
Published on: March 12, 2015
10.0K
Synthetic Peptide Purification via Solid-Phase Extraction with Gradient Elution: A Simple, Economical, Fast, and
Diego Sebastián Insuasty Cepeda1, Héctor Manuel Pineda Castañeda2, Andrea Verónica Rodríguez Mayor3
1Chemistry Department, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia. dsinsuastyc@unal.edu.co.
Molecules (Basel, Switzerland)
|March 31, 2019
Summary
A new method purifies peptides using solid-phase extraction (SPE) and a predictive model for efficient, high-purity results. This versatile technique reduces solvent use, offering an eco-friendly alternative for molecule purification.
Area of Science:
- Analytical Chemistry
- Biochemistry
- Separation Science
Background:
- Peptide purification is crucial for research and development.
- Traditional methods can be time-consuming and solvent-intensive.
- Developing efficient and eco-friendly purification techniques is essential.
Purpose of the Study:
- To develop a streamlined methodology for high-purity peptide purification.
- To create a predictive mathematical model for optimizing solid-phase extraction (SPE) conditions.
- To establish a versatile and environmentally conscious purification process.
Main Methods:
- Implementation of a single-run chromatographic purification process combining solid-phase extraction (SPE) in reverse phase (RP) mode with gradient elution.
- Analysis of crude peptides using reverse phase high-performance liquid chromatography (RP-HPLC).
- Development of a novel mathematical model correlating RP-HPLC retention time with RP-SPE elution conditions.
Main Results:
- High-purity peptides were obtained with good yields in a single purification run.
- The mathematical model accurately predicted elution percentages, enabling customized elution programs.
- The method demonstrated versatility in purifying peptides with diverse physicochemical properties.
- The process significantly reduced solvent consumption, classifying it as an environmentally friendly technique.
Conclusions:
- The developed RP-SPE methodology offers an efficient, versatile, and eco-friendly approach for peptide purification.
- The predictive mathematical model simplifies the optimization of purification protocols.
- This method serves as a valuable alternative for enriching and purifying synthetic or natural molecules, suitable for routine implementation.
Keywords:
gradient elutionpeptidepreparative purificationsolid phase extraction (SPE)solid phase peptide synthesisMore Related Videos
06:19An Inexpensive Adaptation of a Commercial Microwave Reactor for Solid Phase Peptide Synthesis
Published on: November 22, 2024
801
08:41Integration of Miniaturized Solid Phase Extraction and LC-MS/MS Detection of 3-Nitrotyrosine in Human Urine for Clinical Applications
Published on: July 14, 2017
9.9K
Related Concept Videos
02:22Structures of Solids
17.6K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
17.6K
02:37Metallic Solids
20.5K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.5K
02:39Phase Diagrams
49.9K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
49.9K
01:26What is an Electrochemical Gradient?
127.5K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
127.5K
02:43Peptide Bonds
82.6K
A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
82.6K
02:31Phase Transitions
22.9K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
22.9K