Publications de Céline Marie Anne Journot

A DNA biosensors-based microfluidic platform for attomolar real-time detection of unamplified SARS-CoV-2 virus

Igor Stefanini, Mounir Driss Mensi, Sandrine Gerber, Roberto Robortella, Céline Marie Anne Journot, Lucas Mayoraz, Perrine Agnes Edith Robin

The emergence of the coronavirus 2019 (COVID-19) arose the need for rapid, accurate and massive virus detection methods to control the spread of infectious diseases. In this work, a device, deployable in non-medical environments, has been developed for the ...

2023

Development of Covalent Chitosan-Polyethylenimine Derivatives as Gene Delivery Vehicle: Synthesis, Characterization, and Evaluation

Sandrine Gerber, Céline Marie Anne Journot, Laura Camille Louise Nicolle

There is an increasing interest in cationic polymers as important constituents of non-viral gene delivery vectors. In the present study, we developed a versatile synthetic route for the production of covalent polymeric conjugates consisting of water-solubl ...

2021

Chitosan Functionalization: Covalent and Non-Covalent Interactions and Their Characterization

Sandrine Gerber, Céline Marie Anne Journot, Laura Camille Louise Nicolle

Chitosan (CS) is a natural biopolymer that has gained great interest in many research fields due to its promising biocompatibility, biodegradability, and favorable mechanical properties. The versatility of this low-cost polymer allows for a variety of chem ...

MDPI2021

Selection of Water-Soluble Chitosan by Microwave-Assisted Degradation and pH-Controlled Precipitation

Sandrine Gerber, Céline Marie Anne Journot, Yann Lavanchy, Laura Camille Louise Nicolle

In the field of gene therapy, chitosan (CS) gained interest for its promise as a non-viral DNA vector. However, commercial sources of CS lack precise characterization and do not generally reach sufficient solubility in aqueous media for in vitro and in viv ...

2020

Surface Modification of Biomaterials for Conjugation with Human Fetal Osteoblasts

Sandrine Gerber, Phally Kong, Françoise Borcard, Céline Marie Anne Journot, Davide Städler

Surface functionalization of hydroxyapatite (HA) and β-tricalcium phosphate (TCP) bioceramics with chemical ligands containing a pyrrogallol moiety was developed to improve the adhesion of bone cell precursors to the biomaterials. Fast and biocompatible co ...

Swiss Chemical Soc2013