Heparin-nhs Synthesis
Heparin-nhs Synthesis - Related Videos
02:21
Purification of Viral Integrase Using Heparin Affinity Chromatography
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2026
Source: Lopez Jr., M. et al. Detection and Removal of Nuclease Contamination During Purification of Recombinant Prototype Foamy Virus Integrase. J. Vis. Exp. (2017)This video demonstrates the procedure for purifying viral integrase from bacterial nuclease contamination using heparin Sepharose column chromatography followed by SDS-PAGE analysis to confirm protein purity.
10:41
Using a GFP-tagged TMEM184A Construct for Confirmation of Heparin Receptor Identity
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Cited by 2 •
2017
A construct encoding TMEM184A with a GFP tag at the carboxy-terminus designed for eukaryotic expression, was employed in assays designed to confirm the identification of TMEM184A as a heparin receptor in vascular cells.
12:27
Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery
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Cited by 2 •
2016
Self-assembled polyelectrolyte complexes (PEC) fabricated from heparin and protamine were deposited on alginate beads to entrap and regulate the release of osteogenic growth factors. This delivery strategy enables a 20-fold reduction of BMP-2 dose in spinal fusion applications. This article illustrates the benefits and fabrication of PECs.
01:30
Anticoagulant Drugs: Low-Molecular-Weight Heparins
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2024
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
14:37
High-throughput Synthesis of Carbohydrates and Functionalization of Polyanhydride Nanoparticles
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Cited by 7 •
2012
In this article, a high throughput method is presented for the synthesis of oligosaccharides and their attachment to the surface of polyanhydride nanoparticles for further use in targeting specific receptors on antigen presenting cells.
FAQs
Carbodiimide-mediated activation and NHS conversion create a two-stage coupling route. Carbodiimide chemistry first makes heparin carboxyl groups chemically available for reaction with N-hydroxysuccinimide, yielding an NHS ester intermediate. That intermediate presents an amine-reactive form of heparin to a substrate containing primary amines, connecting the polysaccharide to an engineered material.
The NHS ester separates activation from attachment, allowing heparin’s carboxyl chemistry to be directed toward primary amines on a chosen biomaterial. Reaction with those amines forms amide bonds, providing covalent rather than merely associated attachment. This stability is important when heparin-functionalized constructs are intended to serve as persistent engineered interfaces.
The coupling logic can be applied to any supported substrate that presents primary amines, including proteins, polymers, hydrogel networks, and device surfaces. Consequently, the reaction partner determines the physical format in which heparin is incorporated, while the covalent amide linkage connects the heparin component to that format for subsequent bioengineering use.
A typical workflow begins by activating heparin carboxyl groups through carbodiimide-mediated chemistry, followed by NHS conversion to generate the amine-reactive intermediate. The activated heparin is then brought into contact with a primary-amine-containing protein, polymer, hydrogel, or device surface. Amide-bond formation produces the heparin-functionalized construct.
Heparin can be covalently incorporated into several engineered formats, including proteins, synthetic polymers, hydrogel networks, and device surfaces. This breadth makes the strategy useful when researchers need to add heparin to an existing material rather than use it only as a free component. The resulting constructs can support anticoagulant interfaces, scaffolds, or delivery systems.
Heparin-functionalized materials can contribute to anticoagulant interface design, growth-factor presentation, tissue-engineering scaffolds, and drug-delivery systems. The synthesis is especially relevant when heparin must remain incorporated within a material while retaining biological activity. Its covalent attachment enables researchers to integrate heparin-related function into proteins, polymers, hydrogels, or device surfaces.