Publications by Esther Amstad | EPFL Graph Search

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Emulsions are omnipresent in our everyday life; for example, in food, certain drug and cosmetic formulations, agriculture, and as paints. Moreover, they are frequently used to perform high-throughput screening assays with minimum sample volumes. Key to the ...

Oxygen is ubiquitous in nature and it plays a key role in several biological processes, such as cellular respiration and food deterioration, to name a few. Currently, reversible and non-destructive oxygen sensing is usually performed with sensors produced ...

Compressed monodisperse emulsions in confined space exhibit highly ordered structures. The influence of the volume fraction and the confinement geometry on the organized structures is investigated and the mechanism by which structural transition occurs is ...

Drops are often used as picoliter-sized reaction vessels, for example for high-throughput screening assays, or as templates to produce particles of controlled sizes and compositions. Many of these applications require close control over the size of drops, ...

Emulsion drops are often employed as picoliter-sized containers to perform screening assays. These assays usually entail the formation of drops encompassing discrete objects such as cells or microparticles and reagents to study interactions between the dif ...

Formulation of hydrophobic drugs as amorphous materials is highly advantageous as this increases their solubility in water and therefore their bioavailability. However, many drugs have a high propensity to crystallize during production and storage, limitin ...

Regular arrays of colloidal particles can produce striking structural colors without the need for any chemical pigments. Regular arrays of colloidal particles can be processed into microparticles via emulsion templates for use as structural colorants. Phot ...

Many properties of materials, including their dissolution kinetics, hardness, and optical appearance, depend on their structure. Unfortunately, it is often difficult to control the structure of low molecular weight organic compounds that have a high propen ...

Microfluidic flow-focusing devices offer excellent control over fluid flow, enabling formation of drops with a narrow size distribution. However, the throughput of microfluidic flow-focusing devices is limited and scale-up through operation of multiple dro ...

Many natural materials display locally varying compositions that impart unique mechanical properties to them which are still unmatched by manmade counterparts. Synthetic materials often possess structures that are well-defined on the molecular level, but p ...

High-volume production of monodisperse droplets is of importance for industrial applications due to increased emulsion stability, precise control over droplet volumes, and the formation of periodic arranged structures. So far, parallelized microfluidic dev ...

Nature produces biomineral‐based materials with a fascinating set of properties using only a limited number of elements. This set of properties is obtained by closely controlling the structure and local composition of the biominerals. We are far from obtai ...

Capsules often prolong the shelf-life of active ingredients, such as many types of drugs, food additives, or cosmetic substances, because they delay oxidation of these substances or prevent their reactions with molecules contained in the surrounding. If ca ...

The invention relates to additive manufacturing inks and resins; methods of using said inks and resins in additive manufacturing; and additive manufactured articles made using said inks and resins. ...

Direct ink writing (DIW) enables 3D printing of macroscopic objects with well-defined structures and compositions that controllably change over length scales of order 100 µm. Unfortunately, only a limited number of materials can be processed through DIW be ...

Electrically conductive hydrogels can simulate the sensory capabilities of natural skin, such that they are well-suited for electronic skin. Unfortunately, currently available electronic skin cannot detect multiple stimuli in a selective manner. Inspired b ...

Guanine crystals are frequently encountered in nature in the beta-polymorph to create structural colors, to enhance the vision of creatures, and for camouflage. Unfortunately, it is challenging to control the crystallization of guanine in aqueous condition ...

Natural soft materials are often composed of proteins that self-assemble into well-defined structures and display mechanical properties that cannot be matched by manmade materials. These materials are frequently mimicked with hydrogels whose mechanical pro ...

The present invention relates to self-healing shells incorporating amphiphilic molecules having metal-coordinating group(s) reversibly cross-linked with metal cations. ...

Esther Amstad

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Influence of the hydrophile-lipophile balance of perfluorinated surfactants on the emulsion stability

Reversible Oxygen Sensing Based on Multi-Emission Fluorescence Quenching

Creation of Faceted Polyhedral Microgels from Compressed Emulsions

Production of monodisperse drops from viscous fluids

Microfluidic device for real-time formulation of reagents and their subsequent encapsulation into double emulsions

Leveraging Liquid-Liquid Interfaces to Assemble Responsive Vesicles

Crystallization of undercooled liquid fenofibrate

Hydrogel-Encased Photonic Microspheres with Enhanced Color Saturation and High Suspension Stability

Controlling the crystal structure of succinic acid via microfluidic spray-drying

Parallelization of microfluidic flow-focusing devices

Everything in its right place: controlling the local composition of hydrogels using microfluidic traps

High-Throughput Step Emulsification for the Production of Functional Materials Using a Glass Microfluidic Device

Water: How does it influence the CaCO3 formation?

Mechano-responsive microcapsules with uniform thin shells

Additive manufacturing inks or resins and additive manufactured structures

Direct Ink Writing of Rigid Microparticles

3D printing of self-healing longevous multi-sensory e-skin

Confinement-Controlled Crystallization of Guanine

Fabrication of Hexagonal-Prismatic Granular Hydrogel Sheets

Self-healing cross-linkable shells