Publications related to Natural polymer-derived scaffold material and methods for production thereof

Engineering hydrogel microenvironments for epithelial organoid culture

Organoids, miniature tissues generated from self-organizing stem cells within three-dimensional (3D) extracellular matrices (ECM), have opened up exciting possibilities for in vitro studies of complex physiological processes. A key factor in the success of ...

EPFL2024

Mechanical principles of engineering fibrous tissues with programmable shape

Erik Mailand

The form and structure of biological tissues define their function. The emergence of tissue morphology during development is one of the wonders of nature. Cells mechanically probe and manipulate their surroundings while constructing structures from the ext ...

EPFL2021

Extracellular Matrix Production by Mesenchymal Stromal Cells in Hydrogels Facilitates Cell Spreading and Is Inhibited by FGF-2

Martin Ehrbar, Queralt Vallmajó Martín

In native tissues, the interaction between cells and the surrounding extracellular matrix (ECM) is reciprocal, as cells not only receive signals from the ECM but also actively remodel it through secretion of cell-derived ECM. However, very little is known ...

2020

Recapitulating macro-scale tissue self-organization through organoid bioprinting

Matthias Lütolf, Moritz Hofer, Mikhail Nikolaev, Jonathan Brassard

A 3D bioprinting approach has been developed to facilitate tissue morphogenesis by directly depositing organoid-forming stem cells in an extracellular matrix, with the ability to generate intestinal epithelia and branched vascular tissue constructs. ...

NATURE RESEARCH2021

Multifunctional hybrid alginate-based hydrogels for cell immobilization

Luca Szabó

Cell therapy could be a solution for many diseases that currently pose a huge health burden on patients. Especially, cell therapies based on cell microencapsulation are of great interest. Immunoprotection of cells would allow to avoid the need for immunosu ...

EPFL2020

Implementation of Functional Microfluidic Dispensing Tools Enabling Enhanced Control in Extrusion Bioprinting

Ludovic Serex

Inspired from additive manufacturing's success, the structuring of biocompatible materials through bioprinting has become a growing field of research in the past fifteen years. It opened the door to a plethora of applications ranging from the fabrication o ...

EPFL2019

Water: its influence on the formation and crystallization of amorphous calcium carbonate

Huachuan Du

Nature produces CaCO3-based materials that display fascinating mechanical properties. These properties are a result of the exquisite control over the formation of CaCO3 crystals that nature possesses. Such a high level of control is likely achieved, at lea ...

EPFL2019

The role of mechanical hysteresis source in mechanical and mechanobiological performances of load-bearing biomaterials

Naser Nasrollahzadeh Mamaghani

Tissue engineering is a promising approach for articular cartilage regeneration as no satisfactory treatment is actually available for cartilage, partly due to the very limited self-healing capability of this tissue. To successfully induce a cartilaginous ...

EPFL2019

Additive manufacturing of hierarchical injectable scaffolds for tissue engineering

Philippe Renaud, Thomas Michael Braschler, Niccolo Piacentini

We present a 3D-printing technology allowing free-form fabrication of centimetre-scale injectable structures for minimally invasive delivery. They result from the combination of 3D printing onto a cryogenic substrate and optimisation of carboxymethylcellul ...

2018

Fighting preterm birth with novel surgical tools and biomaterials engineering

Yannick Robert Devaud

With advances in fetal diagnosis and therapy, fetoscopy has become a good option to treat a series of life threatening diseases like twin-to-twin transfusion syndrome or severe congenital diaphragmatic hernia. The efficacy of fetoscopy for those types of d ...

EPFL2017

Therapeutic Proteins Engineered for Super-Affinity to the Extracellular Matrix in Regenerative Medicine

Priscilla Suhasna Maithili Briquez

Regenerative medicine aims to repair body tissues when natural mechanisms fail. Growth factors (GFs) are essential proteins that promote tissue regeneration upon injury, and as such, are very promising therapeutic drugs in regenerative medicine. Due to the ...

EPFL2016

Tunable and cell-responsive 3D poly(ethylene glycol) microenvironments for the development of tissue models

Stéphanie Elisabeth Metzger

The recapitulation of tissue organization and function in vitro is one of the main objectives of tissue engineering. Proper tissue function depends on the spatial assembly and interactions between key components such as cells, growth factors, signaling cue ...

EPFL2016

Bio-engineered collagen-fibrin scaffolds for enhancing urological tissue regeneration

Elif Vardar

Urological tissue engineering offers alternative solutions for congenital and acquired diseases of the urinary tract, which may require reconstructive surgery. It evolves to overcome complications, which might be encountered after surgery. Therefore, tissu ...

EPFL2015

Extracellular matrix components in peripheral nerve repair: how to affect neural cellular response and nerve regeneration?

Stéphanie Lacour, Alba Carla De Luca

Peripheral nerve injury is a serious problem affecting significantly patients' life. Autografts are the "gold standard" used to repair the injury gap, however, only 50% of patients fully recover from the trauma. Artificial conduits are a valid alternative ...

Shenyang Editorial Dept Neural Regeneration Res2014

Engineering the Regenerative Microenvironment with Biomaterials

Mikaël Martino, Jeffrey Alan Hubbell, Priscilla Suhasna Maithili Briquez, Jeffrey James Rice, Federico Tortelli

Modern synthetic biomaterials are being designed to integrate bioactive ligands within hydrogel scaffolds for cells to respond and assimilate within the matrix. These advanced biomaterials are only beginning to be used to simulate the complex spatio-tempor ...

Wiley-Blackwell2013

Advances in the design of macroporous polymer scaffolds for potential applications in dentistry

Philippe Renaud, Thomas Michael Braschler, Sidi Ahmed Bencherif

A paradigm shift is taking place in medicine and dentistry from using synthetic implants and tissue grafts to a tissue engineering approach that uses degradable porous three-dimensional (3D) material hydrogels integrated with cells and bioactive factors to ...

2013

Silk Hydrogels as Soft Substrates for Neural Tissue Engineering

Jeffrey Alan Hubbell, Federico Tortelli, Amy Marie Hopkins

There is great need for soft biomaterials that match the stiffness of human tissues for tissue engineering and regeneration. Hydrogels are frequently employed for extracellular matrix functionalization and to provide appropriate mechanical cues. It is chal ...

Wiley-V C H Verlag Gmbh2013

The effect of matrix characteristics on fibroblast proliferation in 3D gels

Matthias Lütolf, Jeffrey Alan Hubbell, Martin Ehrbar, Simone Rizzi

Engineering synthetic hydrogels on a molecular basis to introduce natural features that are important in instructing cell behavior is becoming increasingly crucial in biomaterial-based approaches for regenerative medicine and in cell biology to study cell– ...

Elsevier2010

Rat bladder muscle regeneration induced by local delivery of an engineered insulin-like growth factor 1 in fibrin gels

Lirong Yang

Currently, both congenital abnormalities and developmental problems of the bladder in children, and other dysfunctions in adults, require reconstructive surgery. Such correction involves transplant action of native tissues (such as gastrointestinal segment ...

EPFL2010

Fluidic microstructuring of alginate hydrogels for the single cell niche

Philippe Renaud, Jürgen Brugger, Thomas Michael Braschler, Kristopher Pataky, Ana Valero, Ludovica Colella

Controlling alginate gel formation by diffusion of Ca2+ ions through a filter barrier, a layer-by-layer deposition technique with resolution on the size scale of a single cell is presented. It offers the possibility of exposing cells under biocompatible co ...

Royal Society of Chemistry2010