This work demonstrates that sonication, followed by polymer-wrapping, is an effective strategy to modulate the length of self-assembled nanotubes. The length distributions of the nanotubes were controlled by varying the amplitude of sonication. Wrapping the nanotubes with ionic polymers suspended the propensity of the nanotube fragments to re-assemble over time into their elongated precursors.

Download full-text PDF

Source
http://dx.doi.org/10.1039/c7cc07418bDOI Listing

Publication Analysis

Top Keywords

length self-assembled
8
self-assembled nanotubes
8
controlling length
4
nanotubes
4
nanotubes sonication
4
sonication polymer
4
polymer wrapping
4
wrapping work
4
work demonstrates
4
demonstrates sonication
4

Similar Publications

Water-regulated viscosity-plasticity phase transitions in a peptide self-assembled muscle-like hydrogel.

Nat Commun

January 2025

Department of Chemistry, School of Science, Westlake University, Hangzhou, Zhejiang Province, China.

The self-assembly of small molecules through non-covalent interactions is an emerging and promising strategy for building dynamic, stable, and large-scale structures. One remaining challenge is making the non-covalent interactions occur in the ideal positions to generate strength comparable to that of covalent bonds. This work shows that small molecule YAWF can self-assemble into a liquid-crystal hydrogel (LCH), the mechanical properties of which could be controlled by water.

View Article and Find Full Text PDF

Polydiacetylenes (PDAs) are conjugated polymers that are well known for their colorimetric transition from blue to red with the application of energetic stimulus. Sensing platforms based on polymerized diacetylene surfactant vesicles and other structures have been widely demonstrated for various colorimetric biosensing applications. Although less studied and utilized, the transition also results in a change from a non-fluorescent to a highly fluorescent state, making polydiacetylenes useful for both colorimetric and fluorogenic sensing applications.

View Article and Find Full Text PDF

Confinement Induces Morphological and Topological Transitions in Multivesicles.

ACS Nano

January 2025

Instituto de Histología y Embriología de Mendoza (IHEM)─Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (UNCuyo), 5500 Mendoza, Argentina.

The study of self-assembly in confined spaces has gained significant attention among amphiphilic superstructures and colloidal design. The additional complexity introduced by interactions between contents and their containers, along with the effects of shape and lipid mixing, makes multivesicular bodies an interesting subject of study. Despite its promising applications in biomedicine, such as drug delivery and biomimetic materials, much remains unexplored.

View Article and Find Full Text PDF

Opportunities in Bottlebrush Block Copolymers for Advanced Materials.

ACS Nano

January 2025

Conte Center for Polymer Research, Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States.

Bottlebrush block copolymers (BBCPs) are a unique class of materials that contain a backbone with densely grafted and chemically distinct polymeric side chains. The nonlinear architecture of BBCPs provides numerous degrees of freedom in their preparation, including control over key parameters such as grafting density, side chain length, block arrangement, and overall molecular weight. This uniquely branched structure provides BBCPs with several important distinctions from their linear counterparts, including sterically induced side chain and backbone conformations, rapid and large self-assembled nanostructures, and reduced or eliminated entanglement effects (assuming sufficient grafting density and that the molecular weight of the side chains is below their respective entanglement molecular weight).

View Article and Find Full Text PDF

Background: Egypt has the highest global prevalence of Hepatitis C Virus (HCV) infection, particularly of genotype 4. The development of a prophylactic vaccine remains crucial for HCV eradication, yet no such vaccine currently exists due to the vaccine development challenges. The ability of Virus-Like Particles (VLPs) to mimic the native virus and incorporate neutralizing and conformational epitopes, while effectively engaging both humoral and cellular immune responses, makes them a promising approach to addressing the challenges in HCV vaccine development.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!