Hema Monomer
Hema Monomer - Related Videos
11:56
Central Venous Access Device Dressing Change
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT Central venous access devices (CVAD), commonly known as central lines or central catheters, are large-bore intravenous (IV) catheters that are introduced into the central circulation. Typically, CVADs terminate in the superior vena cava, just outside of the right atrium of the heart, but they may also terminate in any one of the great veins (i.e., aorta, inferior vena cava, brachiocephalic...
09:47
Isolation and Compositional Analysis of Plant Cuticle Lipid Polyester Monomers
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Cited by 32 •
2015
Lipid polyesters constitute the structural components of two cell wall modifications, the plant cuticle and suberin-containing diffusion barriers. In this video, we describe a method to depolymerize cutin from whole delipidated leaves. The method can be applied to investigating mutants compromised in either cutin or suberin biosynthesis.
09:02
Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
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Cited by 1 •
2015
We report protocols for “polymerizing” various types of polymer-encapsulated metal nanoparticles into long chains of “homo-“ and “co-polymers”.
09:44
Generation of Alpha-Synuclein Preformed Fibrils from Monomers and Use In Vivo
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Cited by 56 •
2019
The goal of this article is to outline the steps required for the generation of fibrils from monomeric alpha-synuclein, subsequent quality control, and use of the preformed fibrils in vivo.
08:12
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
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2022
Here, we describe protocols for the preparation of trans-cyclobutane fused cyclooctenes (tCBCO), their polymerization to prepare depolymerizable olefinic polymers, and the depolymerization of these polymers under mild conditions. Additionally, protocols for the preparation of depolymerizable networks and compression molding of rigid linear plastics based on this system are described.
FAQs
The carbon-carbon double bond provides the reactive site for free-radical polymerization. Initiators generate radicals that enable monomer units to link into polymer chains, allowing HEMA-based formulations to become hydrophilic polymers or crosslinked materials. This reaction pathway is central to converting the liquid monomer into engineered structures with useful mechanical and transport properties.
The hydroxyl group increases water compatibility and provides a site for chemical modification or network formation. Consequently, it influences how the resulting material interacts with aqueous environments while also supporting additional structural control. Engineers can use this functionality when designing hydrogels, coatings, or other materials that require both processability and hydrophilicity.
Initiator selection, comonomer incorporation, and crosslinking conditions are key variables. Adjusting them can change swelling, stiffness, permeability, and durability in the final material. These variables allow engineers to balance water uptake against structural performance rather than treating hydrophilicity as an isolated property, which is important when a material must operate reliably in demanding applications.
Crosslinking conditions influence whether polymer chains form a network and help determine the resulting balance of swelling, stiffness, permeability, and durability. Greater control over network formation supports targeted performance in crosslinked materials and hydrogel systems. The selected conditions therefore connect the polymerization process to the practical behavior required for a specific engineering design.
HEMA monomer-based materials are used in contact lenses, dental composites, coatings, and hydrogel systems. These applications benefit from the combination of water compatibility and controllable material performance. By modifying initiators, comonomers, and crosslinking conditions, engineers can adapt the material’s swelling, stiffness, permeability, and durability to different functional requirements.
Its hydroxyl group supports water compatibility, while polymerization and network formation enable control over mechanical and transport behavior. That combination is valuable for contact lenses and hydrogel systems, where hydrophilicity must coexist with usable stiffness, permeability, and durability. HEMA-based formulations therefore provide an engineering route to balance aqueous interaction with structural function.