Publications de Paul Delrot | EPFL Graph Search

Multi-material Volumetric Bioprinting and Plug-and-play Suspension Bath Biofabrication via Bioresin Molecular Weight Tuning and via Multiwavelength Alignment Optics

Volumetric Bioprinting (VBP), enables to rapidly build complex, cell-laden hydrogel constructs for tissue engineering and regenerative medicine. Light-based tomographic manufacturing enables spatial-selective polymerization of a bioresin, resulting in high ...

WILEY-V C H VERLAG GMBH2025

Light from Afield: Fast, High-Resolution, and Layer-Free Deep Vat 3D Printing

Paul Delrot

Harnessing light for cross-linking of photoresponsive materials has revolutionized the field of 3D printing. A wide variety of techniques leveraging broad-spectrum light shaping have been introduced as a way to achieve fast and high-resolution printing, wi ...

American Chemical Society (ACS)2024

Multimaterial Volumetric Printing of Silica-Based Glasses

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot, Jorge Andres Madrid Wolff, Antoine Vincent Boniface, Roberto Arturo Emma

Silicate glasses have played a major role as structural and functional materials in human civilization since ancient Egypt. Despite their widespread use and importance in modern society, silica glasses with complex geometries are only fabricated in automat ...

Wiley2024

High Resolution Light-Based 3D Printing Of Cell-Laden Bio Constructs

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot, Jorge Andres Madrid Wolff, Antoine Vincent Boniface

MARY ANN LIEBERT, INC2023

Tomographic Volumetric Additive Manufacturing of Silicon Oxycarbide Ceramics

Jürgen Brugger, Christophe Moser, Damien Claude-Marie Loterie, Max Kollep, Paul Delrot, Georgia Konstantinou, Lorenz Hagelüken, Jorge Andres Madrid Wolff, Antoine Vincent Boniface

Ceramics are highly technical materials with properties of interest for multiple industries. Precisely because of their high chemical, thermal, and mechanical resistance, ceramics are difficult to mold into complex shapes. A possibility to make convoluted ...

2022

Volumetric Bioprinting

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

MARY ANN LIEBERT, INC2022

High-Speed Volumetric Bioprinting Approach For Biofabrication Of Complex Living Tissue Structures

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

MARY ANN LIEBERT, INC2022

Volumetric Bioprinting of Organoids and Optically Tuned Hydrogels to Build Liver-Like Metabolic Biofactories

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot, Jorge Andres Madrid Wolff

Organ- and tissue-level biological functions are intimately linked to microscale cell-cell interactions and to the overarching tissue architecture. Together, biofabrication and organoid technologies offer the unique potential to engineer multi-scale living ...

Wiley-V C H Verlag Gmbh2022

Controlling Light in Scattering Materials for Volumetric Additive Manufacturing

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot, Jorge Andres Madrid Wolff, Antoine Vincent Boniface

3D printing has revolutionized the manufacturing of volumetric components and structures in many areas. Several fully volumetric light-based techniques have been recently developed thanks to the advent of photocurable resins, promising to reach unprecedent ...

WILEY2022

Volumetric Additive Manufactuing of Ceramics

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot, Georgia Konstantinou, Jorge Andres Madrid Wolff

Two-photon additive manufacturing of ceramic materials has demon-strated high-precision manufacturing of tools at the micrometer scale. Here, we propose single photon volumetric additive manufacturing toovercome limitations on print size and which avoid th ...

IEEE2021

Smart 3D Volumetric Printing

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

In volumetric additive manufacturing, an entire three-dimensional object is simultaneously solidified by irradiating a liquid photopolymer volume from multiple angles with dynamic light patterns. Because this technique is based on 3D light dose accumulatio ...

IEEE2021

Method and apparatus for volumetric additive manufacturing of cell-loaded resins

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

The present invention is related to a method and apparatus for the volumetric fabrication of three-dimensional objects or articles from photoresponsive materials loaded with scattering particles, by adjusting the refractive index of said photoresponsive ma ...

2021

Method and apparatus for volumetric additive manufacturing with digital distortion compensation

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

The present invention is related to a method of digitally compensating distortions of rays of a light beam in tomography- based additive manufacturing, wherein said tomography-based additive manufacturing involves projecting light patterns from multiple an ...

2021

Repetitive regime of highly focused liquid microjets for needle-free injection

Christophe Moser, Paul Delrot, Jan Krizek

Fast liquid jets are investigated for use as a needle-free drug delivery system into an elastic tissue such as skin. Using smaller jet diameters in a repetitive regime can mitigate bruising and pain associated with current injectors. In this study, we aim ...

Nature Research2020

Methods and apparatus for tomographic additive manufacturing with a spatially coherent light source

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

A method of fabricating a three-dimensional article comprises providing a spatially coherent light source (101, 201), generating from said light source (101, 201), patterns of light based on computed tomographic projections of said three-dimensional articl ...

2020

Photoresponsive materials for volumetric additive manufacturing

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

Photoresponsive materials for use with a volumetric additive manufacturing system are described herein. Some embodiments of photoresponsive materials described herein include at least one constituent selected from the group consisting of (i) a thiol-contai ...

2020

System and method of using feedback for correcting three dimensional objects in volumetric tomographic printers

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

A method for monitoring the generation of a three-dimensional object (5) being formed in a tomographic additive manufacturing system from simulated tomographic two-dimensional back-projections (9) of a desired 3D article comprises the steps of: - illuminat ...

2020

High-resolution tomographic volumetric additive manufacturing

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

Tomographic additive manufacturing produces complex parts with a wide range of printable materials but remains limited in terms of resolution. Here, the authors tune the etendue of the light source and accurately control the photopolymerization kinetics us ...

Nature Publishing Group2020

Needle-free delivery of fluids from compact laser-based jet injector

Christophe Moser, Paul Delrot, Jan Krizek

Jet injection devices have been studied and developed for transdermal drug delivery to avoid the use of needles. Due to bulky actuation mechanisms, they are limited to body areas that are easy to reach such as skin. Here, we demonstrate a thin and long liq ...

2020

Methods and apparatus for three-dimensional fabrication by tomographic back projections

Christophe Moser, Damien Claude-Marie Loterie, Paul Delrot

A method for producing a three-dimensional object comprising computing a sequence of back-projections describing the three-dimensional object to be formed from different orientation angles of said object, defining a sequence of patterns of light using said ...

2019