Related Experiment Video
Updated: Aug 6, 2026
11:42
Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
Published on: June 20, 2019
Vesicular self-assembly of comb-dendritic block copolymers
Lu Tian1, Phuong Nguyen, Paula T Hammond
1Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Chemical Communications (Cambridge, England)
|August 22, 2006
Summary
New amphiphilic comb-dendritic block copolymers self-assemble into stable, uniformly sized vesicular structures. These advanced materials offer precise control for various applications.
Area of Science:
- Polymer Chemistry
- Materials Science
- Nanotechnology
Background:
- Amphiphilic block copolymers are crucial for self-assembly.
- Vesicular structures offer unique properties for encapsulation and delivery.
- Controlling size distribution is key for reproducible applications.
Purpose of the Study:
- To develop novel amphiphilic comb-dendritic block copolymers.
- To investigate their self-assembly into vesicular structures.
- To characterize the size distribution of the resulting vesicles.
Main Methods:
- Synthesis of novel amphiphilic comb-dendritic block copolymers.
- Self-assembly studies in solution.
- Dynamic Light Scattering (DLS) for size analysis.
Main Results:
- Successful development of new amphiphilic comb-dendritic block copolymers.
- Demonstrated self-assembly into stable vesicular structures.
- Achieved narrow size distribution in the formed vesicles.
Conclusions:
- The developed copolymers are effective building blocks for vesicular self-assembly.
- The resulting vesicles exhibit controlled and narrow size distribution.
- These materials hold promise for applications requiring precise nanostructures.
More Related Videos
Related Concept Videos
02:41Protein Complex Assembly
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
00:59COP Coated Vesicles
Membrane-enclosed structures called vesicles transport proteins and lipids across the cell. The vesicles derive their cargo from the plasma membrane, Golgi, ER, or endosome. Coated vesicles are spherical, protein-coated carriers with a 50–100 nm diameter that mediate bidirectional transport between the ER and the Golgi. The distribution of proteins between the ER and Golgi complex is dynamic and is maintained by different coated vesicles. Their formation is driven by the assembly of different...
01:12Clathrin Coated Vesicles
Clathrin-coated vesicles use endocytosis to transport receptors and lysosomal hydrolases from the Golgi to the lysosome in the late secretory pathway. Clathrin-mediated endocytosis was the first described endocytic process, and Clathrin-coated vesicles remain one of the most well-studied transport vesicles. The molecular machinery that generates clathrin-coated vesicles comprises over 50 proteins that precisely coordinate vesicle formation. Cell surface receptors concentrated in indented sites...
01:32Pinching-off of Coated Vesicles
Vesicle budding is orchestrated by distinct cytosolic proteins such as adaptor proteins, coat proteins, and GTPases. To initiate vesicle budding, membrane-bending proteins containing crescent-shaped BAR domains bind to the lipid heads in the bilayer and distort the membrane to form a protein-coated vesicle bud. Adaptors proteins such as AP2 for clathrin-coated vesicles can nucleate on the deformed membrane. Finally, coat proteins such as clathrin or COPI and COPII assemble into a coat forming...
01:32Assembly of Complex Microtubule Structures
Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.
01:24Characteristics and Nomenclature of Copolymers
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...