Search research articles

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Apparatus for simultaneous dynamic light scattering-small angle neutron scattering investigations of dynamics and structure in soft matter.

The Review of scientific instruments·2021

Same author

Binding branched and linear DNA structures: From isolated clusters to fully bonded gels.

The Journal of chemical physics·2018

Same author

Small-angle neutron scattering and molecular dynamics structural study of gelling DNA nanostars.

The Journal of chemical physics·2016

Same author

Cationic liposomes formulated with DMPC and a gemini surfactant traverse the cell membrane without causing a significant bio-damage.

Biochimica et biophysica acta·2014

Same author

Confining ss-DNA/carbon nanotube complexes in ordered droplets.

Soft matter·2014

Same author

The cell membrane is the main target of resveratrol as shown by interdisciplinary biomolecular/cellular and biophysical approaches.

The Journal of membrane biology·2013

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jun 5, 2026

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Published on: January 10, 2017

Interactions between single-walled carbon nanotubes and lysozyme.

F Bomboi¹, A Bonincontro, C La Mesa

¹Physics Dept., La Sapienza University, Rome, Italy.

Journal of Colloid and Interface Science

|January 11, 2011

Summary

This study explores how pH and lysozyme concentration affect carbon nanotube stability in water. Higher protein concentrations initially stabilize nanotubes, but excessive amounts cause aggregation due to depletion effects.

More Related Videos

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

Repression of Multiple Myeloma Cell Growth In Vivo by Single-wall Carbon Nanotube (SWCNT)-delivered MALAT1 Antisense Oligos

Repression of Multiple Myeloma Cell Growth In Vivo by Single-wall Carbon Nanotube (SWCNT)-delivered MALAT1 Antisense Oligos

Published on: December 13, 2018

Related Experiment Videos

Last Updated: Jun 5, 2026

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Published on: January 10, 2017

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

Repression of Multiple Myeloma Cell Growth In Vivo by Single-wall Carbon Nanotube (SWCNT)-delivered MALAT1 Antisense Oligos

Repression of Multiple Myeloma Cell Growth In Vivo by Single-wall Carbon Nanotube (SWCNT)-delivered MALAT1 Antisense Oligos

Published on: December 13, 2018

Area of Science:

Biomaterials Science
Nanotechnology
Physical Chemistry

Background:

Carbon nanotubes (CNTs) are nanomaterials with unique properties but often aggregate in solution.
Stabilizing CNTs in aqueous media is crucial for their application in various fields.
Proteins like lysozyme can act as stabilizers for nanomaterials.

Purpose of the Study:

To investigate the stabilizing effect of lysozyme on single-walled carbon nanotube (SWCNT) dispersions.
To understand the influence of pH and protein concentration on SWCNT-lysozyme interactions.
To elucidate the mechanisms of stabilization and destabilization in these systems.

Main Methods:

Electrophoretic mobility measurements to assess surface charge.
Dielectric relaxation spectroscopy to probe the electrical double layer.
Circular dichroism to evaluate protein conformation.
Varying pH and lysozyme concentrations to observe dispersion behavior.

Main Results:

Lysozyme concentration and pH significantly modulate SWCNT-protein interactions and dispersion stability.
Complex formation between lysozyme and SWCNTs was observed, with binding indicated by surface charge and double layer changes.
Above a critical protein/nanotube mass ratio, depletion effects led to SWCNT aggregation and phase separation.

Conclusions:

Lysozyme can stabilize SWCNTs in aqueous solutions, with stability dependent on pH and protein concentration.
The binding of lysozyme to SWCNTs appears to preserve its native conformation.
Protein-based depletion phenomena can counteract stabilization, leading to aggregation, similar to surfactant systems.