Publications de Simone Allazetta

High-throughput stem cell-based phenotypic screening through microniches

Matthias Lütolf, Simone Allazetta, Laura Kolb, Mehmet Ugur Girgin

As the field of tissue engineering develops, methods for screening combinations of signals for their effects on stem cell behavior are needed. We introduce a microgel-based screening platform for testing combinations of in situ-generated proteins on stem c ...

ROYAL SOC CHEMISTRY2019

Microfluidic production of bioactive fibrin micro-beads embedded in crosslinked collagen used as an injectable bulking agent for urinary incontinence treatment

Matthias Lütolf, Peter Frey, Jeffrey Alan Hubbell, Hans Mattias Larsson, Elif Vardar, Kalitha Pinnagoda, Simone Allazetta, Ganesh Vythilingam

2018

Natural polymer-derived scaffold material and methods for production thereof

Matthias Lütolf, Peter Frey, Jeffrey Alan Hubbell, Hans Mattias Larsson, Elif Vardar, Simone Allazetta, Kalitha Pinnagoda, Eva-Maria Balet

The invention relates to a scaffold material comprising a carrier and embedded microbeads for use in tissue engineering applications such as soft tissues therapeutic treatment. The scaffold provides a short-term bulking effect coupled with a long-term func ...

2017

Cell-Instructive Microgels with Tailor-Made Physicochemical Properties

Matthias Lütolf, Simone Allazetta, Laura Kolb, Samantha Zerbib

A microfluidic in vitro cell encapsulation platform to systematically test the effects of microenvironmental parameters on cell fate in 3D is developed. Multiple cell types including fibroblasts, embryonic stem cells, and cancer cells are incorporated in e ...

Wiley-V C H Verlag Gmbh2015

Stem cell niche engineering through droplet microfluidics

Matthias Lütolf, Simone Allazetta

Stem cells reside in complex niches in which their behaviour is tightly regulated by various biochemical and biophysical signals. In order to unveil some of the crucial stem cell-niche interactions and expedite the implementation of stem cells in clinical ...

Current Biology Ltd2015

Microfluidic engineering of artificial stem cell niches

Simone Allazetta

Stem cells play a key role in a wide range of biological processes, in large part due to their ability to self-renew or differentiate into specialized cell types in response to various biological cues. In vivo, stem cells reside in a complex microenvironme ...

EPFL2015

Microfluidic Synthesis of Cell-Type-Specific Artificial Extracellular Matrix Hydrogels

Matthias Lütolf, Tanja Cloé Hausherr, Simone Allazetta

Droplet microfluidic technology is applied for the high-throughput synthesis via Michael-type addition of reactive, micrometer-sized poly(ethylene glycol) (PEG) hydrogels (“microgels”) with precisely controlled dimension and physicochemical properties. A v ...

American Chemical Society2013

Patterning of cell-instructive hydrogels by hydrodynamic flow focusing

Matthias Lütolf, Steffen Cosson, Simone Allazetta

Microfluidic gradient systems offer a very precise means to probe the response of cells to graded biomolecular signals in vitro, for example to model how morphogen proteins affect cell fate during developmental processes. However, existing gradient makers ...

Royal Society of Chemistry2013

Programmable microfluidic patterning of protein gradients on hydrogels

Matthias Lütolf, Steffen Cosson, Simone Allazetta

Computer-controlled hydrodynamic flow focusing was utilized to generate tethered protein gradients of any user-defined shape on the surface of soft synthetic hydrogels. ...

Royal Society of Chemistry2010