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Esther Amstad

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Publications associées (100)

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

Esther Amstad

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 ...

Wiley-Blackwell2017

Polymeric structures

Huachuan Du, Esther Amstad

A polymeric structure comprising a plurality of spherical or polyhedral polymeric cells bound through their sidewalls via a connection element, wherein the polymeric cells and the connection element have a different Young's modulus. ...

2019

Water: How does it influence the CaCO3 formation?

Huachuan Du, Esther Amstad

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 ...

Wiley-VCH Verlag GmbH2019

Mechano-responsive microcapsules with uniform thin shells

Esther Amstad, Antoine Claude Jean Vian

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 ...

2019

Additive manufacturing inks or resins and additive manufactured structures

Alvaro Lino Boris Charlet, Esther Amstad, Matteo Hirsch

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. ...

2022

Direct Ink Writing of Rigid Microparticles

Esther Amstad, Pauline Camille Charlotte Pradal

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 ...

2025

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

Esther Amstad, Francesca Bono, Josephine Anna Eleanor Hughes, Sudong Lee, Benhui Dai

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 ...

Springer Science and Business Media LLC2025

Confinement-Controlled Crystallization of Guanine

Esther Amstad, Chuen-Ru Li

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 ...

Amer Chemical Soc2024

Fabrication of Hexagonal-Prismatic Granular Hydrogel Sheets

Huachuan Du, Esther Amstad, Alice Cont, Mathias Steinacher

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 ...

2018

Self-healing cross-linkable shells

Esther Amstad, Gianluca Nicolas Etienne

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

2019

Reply to the 'Comment on "Robust scalable high throughput production of monodisperse drops"' by M. Nakajima, Lab Chip, 2017, 17, DOI: 10.1039/C7LC00181A

Esther Amstad

This reply to the comment by Nakajima on our article that appeared in Lab on a Chip (E. Amstad, M. Chemama, M. Eggersdorfer, L. R. Arriaga, M. Brenner and D. A. Weitz, Lab Chip, 2016, 16, 4163-4172) highlights the differences between the microchannel step ...

Royal Society of Chemistry2017

Microfluidics: A Tool to Control the Size and Composition of Particles

Esther Amstad

Particles and capsules are used as containers for active ingredients to delay their degradation and control the location and kinetics of their release. Key to a successful application of these containers is a good control over their size, composition, and ...

Swiss Chemical Soc2017

Device and methods for shell phase removal of core-shell capsules

Esther Amstad, Antoine Claude Jean Vian

A device and method for the mechanical (partial or total) removal of the liquid phase of the external shell of a core-shell capsule is disclosed. The device comprises a main channel having at least one inlet, one outlet and a tubular element in between, ad ...

2017

Editorial

Esther Amstad

SWISS CHEMICAL SOC2022

Recyclable 3D printable single network granular hydrogels

Esther Amstad, Lorenzo Lucherini, Gaia De Angelis, Gaia Dupont

Spherical microgels can be conveniently direct ink written into granular hydrogels because of their rheological properties when jammed. Yet, due to weak interparticle interactions, the resulting granular hydrogels are soft and often disassemble if immersed ...

2024

Microstructured thermo-responsive double network granular hydrogels

Esther Amstad, Alexandra Thoma, Reece Carolann Whatmore

Thermo-responsive double network granular hydrogels made of microgels with open micrometer-sized pores can lift up to 85% of their own weight and respond up to 3-fold faster to changes in temperature than bulk counterparts are introduced. ...

Royal Society of Chemistry (RSC)2025

Size‐Selective Functionalization of Sugars and Polyols Using Zeolites for Renewable Surfactant Production

Jeremy Luterbacher, Esther Amstad, Wen Hua Bi, Songlan Sun, Yu-Cheng Lin, Zezhong Li, Seongmin Jin, Tom Nelis, Benjamin Nicolas Raffy, Manon Stéphanie Dominique Rolland, Shasha Zheng

Diol functionalization with acetals in carbohydrates and polyols is ubiquitously used in protection chemistry and in the manufacture of several platform chemicals. However, the selective functionalization of molecules where multiple acetalization reactions ...

Wiley2025

Capsules: Their Past and Opportunities for Their Future

Esther Amstad

Capsules are often used as mobile delivery vehicles, for example, in pharmacy, food, and cosmetics, or as stationary containers that are embedded in a matrix to functionalize materials. Progress achieved in polymer chemistry opened up new possibilities to ...

2017

Deterministic scRNA-seq captures variation in intestinal crypt and organoid composition

Matthias Lütolf, Bart Deplancke, Saba Rezakhani, Esther Amstad, Riccardo Dainese, Julie Marie Russeil, Antonius Chrisnandy, Vincent Roland Julien Gardeux, Johannes Julius Bues, Marjan Biocanin, Rita Sarkis, Jörn Pezoldt, Wouter Jozef L Saelens

DisCo is a deterministic droplet microfluidics tool for single-cell analysis on low cell input samples, which is demonstrated to profile individual intestinal organoids and in vivo-derived small tissues. ...

Nature Publishing Group2022

Capsules made from prefabricated thin films

Esther Amstad

American Association for the Advancement of Science2018