Pepijn G. Moerman
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View article: Flexible interaction patches lead to building blocks with fluctuating valency
Flexible interaction patches lead to building blocks with fluctuating valency Open
Patchy particles have directional interactions that enable self-assembly into materials with precisely tailored microstructures. The patches are usually rigid, but a study now shows that flexible patches can fluctuate between an on- and of…
View article: Single-lipid tracking reveals heterogeneities in the nanoscale dynamics of colloid-supported lipid bilayers
Single-lipid tracking reveals heterogeneities in the nanoscale dynamics of colloid-supported lipid bilayers Open
Single-particle tracking photoactivated localization microscopy was used to explore lipid dynamics in colloid-supported lipid bilayers, highlighting the inherent heterogeneity in lipid mobilities and their implications for self-assembly ap…
View article: Building RNA Concentration Fields
Building RNA Concentration Fields Open
In living systems, biomolecular concentration fields create maps that pattern a fly’s compound eyes, weave growing nerves into brain circuitry, and organize microbial communities. A simple, generalizable way to construct such concentration…
View article: Hydrogels with Tethered Transcription Circuit Elements for Chemical Communication and Collective Computation
Hydrogels with Tethered Transcription Circuit Elements for Chemical Communication and Collective Computation Open
Tissues, robots, and other distributed systems must make decisions about information originating from and then orchestrate responses at different physical locations. Cell-cell communication processes are essential for morphogenesis, immune…
View article: Self‐Organized Patterns in Non‐Reciprocal Active Droplet Systems
Self‐Organized Patterns in Non‐Reciprocal Active Droplet Systems Open
Non‐equilibrium patterns are widespread in nature and often arise from the self‐organization of constituents through nonreciprocal chemotactic interactions. In this study, we demonstrate how active oil‐in‐water droplet mixtures with predat…
View article: Self‐Organized Patterns in Non‐Reciprocal Active Droplet Systems
Self‐Organized Patterns in Non‐Reciprocal Active Droplet Systems Open
Non‐equilibrium patterns are widespread in nature and often arise from the self‐organization of constituents through nonreciprocal chemotactic interactions. In this study, we demonstrate how active oil‐in‐water droplet mixtures with predat…
View article: Broccoli aptamer allows quantitative transcription regulation studies in vitro
Broccoli aptamer allows quantitative transcription regulation studies in vitro Open
Quantitative transcription regulation studies in vivo and in vitro often make use of reporter proteins. Here we show that using Broccoli aptamers, quantitative study of transcription in various regulatory scenarios is possible without a tr…
View article: Self-organized Patterns in Predator-Prey Droplet Systems
Self-organized Patterns in Predator-Prey Droplet Systems Open
Non-equilibrium patterns are widespread in nature and often arise from the self-organization of constituents through nonreciprocal chemotactic interactions. In this study, we demonstrate how active oil-in-water droplet mixtures with predat…
View article: Directing Uphill Strand Displacement with an Engineered Superhelicase
Directing Uphill Strand Displacement with an Engineered Superhelicase Open
The ability to finely tune reaction rates and binding energies between components has made DNA strand displacement circuits promising candidates to replicate the complex regulatory functions of biological reaction networks. However, these …
View article: A simple method to alter the binding specificity of DNA-coated colloids that crystallize
A simple method to alter the binding specificity of DNA-coated colloids that crystallize Open
The binding properties of DNA-coated colloids are modified by growing new DNA domains on the particles’ surface using an isothermal DNA polymerization reaction.
View article: Chemically tuning attractive and repulsive interactions between solubilizing oil droplets
Chemically tuning attractive and repulsive interactions between solubilizing oil droplets Open
Solubilization is a spontaneous transport process occurring in surfactant-stabilized emulsions that can lead to Marangoni flow and droplet motility. Conventionally, active droplets exhibit self-propulsion and pairwise repulsion due to solu…
View article: A simple method to reprogram the binding specificity of DNA-coated colloids that crystallize
A simple method to reprogram the binding specificity of DNA-coated colloids that crystallize Open
DNA-coated colloids can crystallize into a multitude of lattices, ranging from face-centered cubic to diamond and thereby contribute to our understanding of crystallization and open avenues to producing structures with useful photonic prop…
View article: Chemically tuning attractive and repulsive interactions between solubilizing oil droplets
Chemically tuning attractive and repulsive interactions between solubilizing oil droplets Open
Solubilization is a spontaneous transport process occurring in surfactant-stabilized emulsions that can lead to Marangoni flow and droplet motility. Conventionally, active droplets exhibit self-propulsion and pairwise repulsion due to solu…
View article: Catalytic DNA Polymerization Can Be Expedited by Active Product Release**
Catalytic DNA Polymerization Can Be Expedited by Active Product Release** Open
The sequence‐specific hybridization of DNA facilitates its use as a building block for designer nanoscale structures and reaction networks that perform computations. However, the strong binding energy of Watson–Crick base pairing that unde…
View article: Catalytic DNA Polymerization Can Be Expedited by Active Product Release**
Catalytic DNA Polymerization Can Be Expedited by Active Product Release** Open
The sequence‐specific hybridization of DNA facilitates its use as a building block for designer nanoscale structures and reaction networks that perform computations. However, the strong binding energy of Watson–Crick base pairing that unde…
View article: Catalytic DNA Polymerization Can Be Expedited by Active Product Release
Catalytic DNA Polymerization Can Be Expedited by Active Product Release Open
The sequence-specific hybridization of DNA facilitates its use as a building block for designer nanoscale structures and reaction networks that perform computations. However, the strong binding energy of Watson-Crick base pairing that unde…
View article: Chemical Design of Self-Propelled Janus Droplets
Chemical Design of Self-Propelled Janus Droplets Open
The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems and the design of functional, adaptive matter. Solubilizing, self-propelling drop…
View article: Chemical Design of Self-Propelled Janus Droplets
Chemical Design of Self-Propelled Janus Droplets Open
The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems and the design of functional, adaptive matter. Solubilizing, self-propelling drop…
View article: Chemical Design of Self-Propelled Janus Droplets
Chemical Design of Self-Propelled Janus Droplets Open
The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems and the design of functional, adaptive matter. Solubilizing, self-propelling drop…
View article: Chemical Design of Self-Propelled Janus Droplets
Chemical Design of Self-Propelled Janus Droplets Open
The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems and the design of functional, adaptive matter. Solubilizing, self-propelling drop…
View article: Tunable Persistent Random Walk in Swimming Droplets
Tunable Persistent Random Walk in Swimming Droplets Open
We characterize the motility of athermal swimming droplets within the framework of a persistent random walk. Just like active colloids, their trajectories can be modeled with a constant velocity V and a slow angular diffusion, but the rand…
View article: Brownian motion of freely jointed colloidal trimers
Brownian motion of freely jointed colloidal trimers Open
Shape changes resulting from segmental flexibility are ubiquitous in molecular and biological systems, and are expected to affect both the diffusive motion and (biological) function of dispersed objects. The recent development of colloidal…
View article: Dynamics of active droplets and freely-jointed colloidal trimers
Dynamics of active droplets and freely-jointed colloidal trimers Open
In this thesis we have investigated how the dynamics of particle are affected by surface activity, which is the property of particles to locally alter the solute concentration through for example a surface reactions or dissolution. We foun…
View article: Lasing Supraparticles Self-Assembled from Nanocrystals
Lasing Supraparticles Self-Assembled from Nanocrystals Open
One of the most attractive commercial applications of semiconductor nanocrystals (NCs) is their use in lasers. Thanks to their high quantum yield, tunable optical properties, photostability, and wet-chemical processability, NCs have arisen…
View article: Emulsion patterns in the wake of a liquid–liquid phase separation front
Emulsion patterns in the wake of a liquid–liquid phase separation front Open
Significance Liquid–liquid phase separation plays an important role in diverse processes, such as the organization of cellular subcompartments, the encapsulation of active agents, or the synthesis of complex emulsions. Demixing liquids usu…
View article: Solute-mediated interactions between active droplets
Solute-mediated interactions between active droplets Open
Concentration gradients play a critical role in embryogenesis, bacterial locomotion, as well as the motility of active particles. Particles develop concentration profiles around them by dissolution, adsorption, or the reactivity of surface…