161 citations · 1.1k across the 39 of their papers we have counts for
26 papers · 1 filter
Colloidal layer deposition with a controllable number of layers and compositional order
Akshaya Kumar Jena, Aashima Aashima, Pritam Kumar Jana +1
We design a system with a binary suspension of colloids and a surface that triggers the self-assembly of crystallites with a finite thickness. The proposed design allows controllin…
Sliding across a surface: particles with fixed and mobile ligands
Janna Lowensohn, Laurie Stevens, Daniel Goldstein +1
A quantitative model of the mobility of functionalized particles at the interface is pivotal to understanding important systems in biology and nanotechnology. In this work, we inve…
Adaptable DNA interactions regulate surface triggered self assembly
Roberta Lanfranco, Pritam Kumar Jana, Gilles Bruylants +3
DNA-mediated multivalent interactions between colloidal particles have been extensively applied for their ability to program bulk phase behaviour and dynamic processes. Exploiting…
Self-assembly of finite-sized colloidal aggregates
Pritam Kumar Jana, Bortolo Matteo Mognetti
One of the challenges of self-assembling finite-sized colloidal aggregates with a sought morphology is the necessity of precisely sorting the position of the colloids at the micros…
Translational and Rotational Dynamics of Colloidal Particles Interacting through Reacting Linkers
Pritam Kumar Jana, Bortolo Matteo Mognetti
Much work has studied effective interactions between micron-sized particles carrying linkers forming reversible, inter-particle linkages. These studies allowed understanding the eq…
Programmable interactions with biomimetic DNA linkers at fluid membranes and interfaces
Bortolo Mognetti, Pietro Cicuta, Lorenzo Di Michele
At the heart of the structured architecture and complex dynamics of biological systems are specific and timely interactions operated by biomolecules. In many instances, biomolecula…
Linker-mediated phase behavior of DNA-coated colloids
Janna Lowensohn, Bernardo Oyarzún, Guillermo Narvaez Paliza +2
The possibility of prescribing local interactions between nano- and microscopic components that direct them to assemble in a predictable fashion is a central goal of nanotechnology…
Surface-triggered cascade reactions between DNA linkers direct self-assembly of colloidal crystals of controllable thickness
Pritam Kumar Jana, Bortolo Matteo Mognetti
Functionalizing colloids with reactive DNA linkers is a versatile way of programming self-assembly. DNA selectivity provides direct control over colloid-colloid interactions allowi…
Efficient sampling of reversible cross-linking polymers: Self-assembly of single-chain polymeric nanoparticles
Bernardo Oyarzún, Bortolo Matteo Mognetti
We present a new simulation technique to study systems of polymers functionalized by reactive sites that bind/unbind forming reversible linkages. Functionalized polymers feature se…
Bond formation kinetics affects self-assembly directed by ligand-receptor interactions
S. J. Bachmann, M. Petitzon, B. M. Mognetti
In this paper we study aggregation kinetics in systems of particles functionalised by complementary linkers. Most of the coarse-grained models currently employed to study large-sca…
Melting transition in lipid vesicles functionalised by mobile DNA linkers
S. J. Bachmann, J. Kotar, L. Parolini +4
We study phase behaviours of lipid--bilayer vesicles functionalised by ligand--receptor complexes made of synthetic DNA by introducing a modelling framework and a dedicated experim…
Theory and Simulation of DNA-Coated Colloids: a Guide for Rational Design
Stefano Angioletti-Uberti, Bortolo M. Mognetti, Daan Frenkel
By exploiting the exquisite selectivity of DNA hybridization, DNA-Coated Colloids (DNACCs) can be made to self-assemble in a wide variety of structures. The beauty of this system s…
A new configurational bias scheme for sampling supramolecular structures
Robin De Gernier, Tine Curk, Galina V. Dubacheva +2
We present a new simulation scheme which allows an efficient sampling of reconfigurable supramolecular structures made of polymeric constructs functionalized by reactive binding si…
Volume and porosity thermal regulation in lipid mesophases by coupling mobile ligands to soft membranes
Lucia Parolini, Bortolo M. Mognetti, Jurij Kotar +3
Short DNA linkers are increasingly being exploited for driving specific self-assembly of Brownian objects. DNA-functionalised colloids can assemble into ordered or amorphous materi…
Mobile linkers on DNA-coated colloids: valency without patches
Stefano Angioletti-Uberti, Patrick Varilly, Bortolo M. Mognetti +1
Colloids coated with single-stranded DNA (ssDNA) can bind selectively to other colloids coated with complementary ssDNA. The fact that DNA-coated colloids (DNACCs) can bind to spec…
Designing stimulus-sensitive colloidal walkers
Francisco J. Martinez-Veracoechea, Bortolo M. Mognetti, Stefano Angioletti-Uberti +3
Colloidal particles with DNA `legs' that can bind reversibly to receptors on a surface can be made to `walk' if there is a gradient in receptor concentration. We use a combination…
Living clusters and crystals from low density suspensions of active colloids
B. M. Mognetti, A. Šarić, S. Angioletti-Uberti +3
Recent studies aimed at investigating artificial analogs of bacterial colonies have shown that low-density suspensions of self-propelled particles confined in two dimensions can as…
A simple analytical formula for the free-energy of ligand-receptor mediated interactions
Stefano Angioletti-Uberti, Patrick Varilly, Bortolo Matteo Mognetti +2
Recently \1, we presented a general theory for calculat- ing the strength and properties of colloidal interactions mediated by ligand-receptor bonds (such as those that bind DNA-co…
A general theory of DNA-mediated and other valence-limited interactions
Patrick Varilly, Stefano Angioletti-Uberti, Bortolo M. Mognetti +1
We present a general theory for predicting the interaction potentials between DNA-coated colloids, and more broadly, any particles that interact via valence-limited ligand-receptor…
Controlling the temperature sensitivity of DNA-mediated colloidal interactions through competing linkages
B. M. Mognetti, M. E. Leunissen, D. Frenkel
We propose a new strategy to improve the self-assembly properties of DNA-functionalised colloids. The problem that we address is that DNA-functionalised colloids typically crystall…
Modelling receding contact lines on superhydrophobic surfaces
B. M. Mognetti, J. M. Yeomans
We use mesoscale simulations to study the depinning of a receding contact line on a superhydrophobic surface patterned by a regular array of posts. In order that the simulations ar…
Drop dynamics on hydrophobic and superhydrophobic surfaces
B. M. Mognetti, H. Kusumaatmaja, J. M. Yeomans
We investigate the dynamics of micron-scale drops pushed across a hydrophobic or superhydrophobic surface. The velocity profile across the drop varies from quadratic to linear with…
Using electrowetting to control interface motion in patterned microchannels
B. M. Mognetti, J. M. Yeomans
We use mesoscale simulations to demonstrate the feasibility of a novel microfluidic valve, which exploits Gibbs' pinning in microchannels patterned by posts or ridges, together wit…
Capillary filling in microchannels patterned by posts
B. M. Mognetti, J. M. Yeomans
We investigate the capillary filling of three dimensional micro-channels with surfaces patterned by posts of square cross section. We show that pinning on the edges of the posts su…