Next Article in Journal
Perspectives on Iron Oxide-Based Materials with Carbon as Anodes for Li- and K-Ion Batteries
Next Article in Special Issue
Maximum Incorporation of Soft Microgel at Interfaces of Water in Oil Emulsion Droplets Stabilized by Solid Silica Spheres
Previous Article in Journal
Transition Metal Phosphides (TMP) as a Versatile Class of Catalysts for the Hydrodeoxygenation Reaction (HDO) of Oil-Derived Compounds
 
 
Article

Driven Engulfment of Janus Particles by Giant Vesicles in and out of Thermal Equilibrium

Institute Charles Sadron, CNRS UPR22, University of Strasbourg, 23 Rue du Loess, 67034 Strasbourg, France
*
Author to whom correspondence should be addressed.
Current address: University of Lyon, ENS-Lyon, CNRS UMR 5182, Chem. Lab., 69342 Lyon, France.
Academic Editor: Jose L. Arias
Nanomaterials 2022, 12(9), 1434; https://doi.org/10.3390/nano12091434
Received: 15 March 2022 / Revised: 12 April 2022 / Accepted: 19 April 2022 / Published: 22 April 2022
(This article belongs to the Special Issue Nano- and Micro-Particles Interacting with Soft Interfaces)
The interaction between Janus colloids and giant lipid vesicles was experimentally investigated to elucidate the dynamics and mechanisms related to microparticle engulfment by lipid vesicles. Janus (Pt–SiO2 and Pt–MF, where MF is melamine formaldehyde) colloids do not spontaneously adhere to POPC or DOPC bilayers, but by applying external forces via centrifugation we were able to force the contact between the particles and the membranes, which may result in a partial engulfment state of the particle. Surface properties of the Janus colloids play a crucial role in the driven particle engulfment by vesicles. Engulfment of the silica and platinum regions of the Janus particles can be observed, whereas the polymer (MF) region does not show any affinity towards the lipid bilayer. By using fluorescence microscopy, we were able to monitor the particle orientation and measure the rotational dynamics of a single Janus particle engulfed by a vesicle. By adding hydrogen peroxide to the solution, particle self-propulsion was used to perform an active transport of a giant vesicle by a single active particle. Finally, we observe that partially engulfed particles experience a membrane curvature-induced force, which pushes the colloids towards the bottom where the membrane curvature is the lowest. View Full-Text
Keywords: Janus particles; lipids; vesicles; engulfment; adhesion; self-propulsion; driven interaction Janus particles; lipids; vesicles; engulfment; adhesion; self-propulsion; driven interaction
Show Figures

Graphical abstract

MDPI and ACS Style

Sharma, V.; Marques, C.M.; Stocco, A. Driven Engulfment of Janus Particles by Giant Vesicles in and out of Thermal Equilibrium. Nanomaterials 2022, 12, 1434. https://doi.org/10.3390/nano12091434

AMA Style

Sharma V, Marques CM, Stocco A. Driven Engulfment of Janus Particles by Giant Vesicles in and out of Thermal Equilibrium. Nanomaterials. 2022; 12(9):1434. https://doi.org/10.3390/nano12091434

Chicago/Turabian Style

Sharma, Vaibhav, Carlos M. Marques, and Antonio Stocco. 2022. "Driven Engulfment of Janus Particles by Giant Vesicles in and out of Thermal Equilibrium" Nanomaterials 12, no. 9: 1434. https://doi.org/10.3390/nano12091434

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop