Collagen Monomer

A collagen monomer, often called tropocollagen, is the basic molecular unit of collagen and a key building block of the extracellular matrix. It consists of three polypeptide alpha chains assembled into a triple helix, which can align and self-assemble into fibrils; subsequent intermolecular crosslinking gives collagen tissues their strength and stability. In bioengineering, purified or recombinant collagen monomers support the design of hydrogels, porous scaffolds, and other biomaterials for tissue engineering, wound repair, and cell culture. Controlling monomer concentration, assembly conditions, and crosslinking enables researchers to tune mechanical properties, degradation, and cellular interactions.

Collagen Monomer - Related Videos

Education

JoVE Science Education - Engineering

Collagen Hydrogels

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2023

Collagen is another widely used biomaterial that has found popularity in commercial applications, such as photography. Collagen has more recently been used in tissue engineering applications, by creating hydrogels that provide structure to engineered tissue. This video introduces collagen as a biomaterial, demonstrates how it is harvested from porcine skin, and shows how the material is used to create a hydrogel for tissue engineering applications. Finally, several applications of the material...

Research

JoVE Journal - Bioengineering
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In vitro Synthesis of Native, Fibrous Long Spacing and Segmental Long Spacing Collagen

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Cited by 16 •

2012

Simple and reproducible procedures are described for making three structurally distinct collagen assemblies from a common commercially available Type I collagen monomer. Native type, fibrous long spacing or segmental long spacing collagen can be constructed by varying the conditions to which the 300 nm long and 1.4 nm diameter monomer building block is exposed.

Research

JoVE Journal - Biology
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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.

Imaging Denatured Collagen Strands In vivo and Ex vivo via Photo-triggered Hybridization of Caged Collagen Mimetic Peptides

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Cited by 18 •

2014

This procedure demonstrates in vivo near IR fluorescence imaging of collagen remodeling activities in mice as well as ex vivo staining of collagens in tissue sections using caged collagen mimetic peptides that can be photo-triggered to hybridize with denatured collagen strands.

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”.

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