Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Concept

Méthode BCA

Publications associées (18)

Efficient AC electrothermal flow (ACET) on-chip for enhanced immunoassays

Martinus Adela Maria Gijs, Diego Gabriel Dupouy, Muaz Salama Abdelmonem Draz

Biochemical reaction rates in microfluidic systems are known to be limited by the diffusional transport of reagents, leading often to lowered sensitivity and/or longer detection times in immunoassays. Several methods, including electrically powering electr ...

ROYAL SOC CHEMISTRY2023

Development of next-generation microfluidic systems for enhanced, faster, and cost-effective immunoassays for tissue diagnostics - Ac electrothermal flow & Acoustofluidics

Muaz Salama Abdelmonem Draz

The application of microfluidics in the field of surface-based assays and more specifically, the spatial molecular profiling of tumor tissues has gained a lot of interest, especially with the increased interest in personalized medicine and targeted therapy ...

EPFL2023

Quantification of Strand Accessibility in Biostable DNA Origami with Single-Staple Resolution

Maartje Martina Cornelia Bastings, Alice Comberlato

DNA-based nanostructures are actively gaining interest as tools for biomedical and therapeutic applications following the recent development of protective coating strategies prolonging structural integrity in physiological conditions. For tailored biologic ...

AMER CHEMICAL SOC2021

Extra short incubation microfluidic assisted – fluorescence in situ hybridization (ESIMA-FISH)

Martinus Adela Maria Gijs, Raphaël Etienne Jean Trouillon, Huu Tuan Nguyen, Estelle Annick Cuttaz

Fluorescence in situ hybridization (FISH) is a powerful technique for evaluating the HER2 gene status in breast cancer specimen (1). However, most of FISH assays currently used in clinical laboratories are expensive and require long experimental time, up t ...

2016

A miniaturized electrochemical assay for homocysteine using screen-printed electrodes with cytochrome c anchored gold nanoparticles

Olivier Martin, Christian Santschi, Madasamy Thangamuthu

Determination of homocysteine (HcySH) is highly beneficial in human physiology and pathophysiology for diagnosis and prognosis of cardiovascular diseases (CVD). Unfortunately, the practicability of the existing methodologies for the determination of HcySH ...

Royal Society of Chemistry2015

Quantification of low molecular weight drugs : from the selection of nucleic acid-based capture molecules to the characterization in patient samples

Anna Ferretti

Therapeutic Drug Monitoring (TDM) is considered one of the most successful approaches to personalized medicine. However, the accuracy requirements on the quantification of drug concentration and the challenges in the dose adjustment limit the application o ...

EPFL2015

Bioluminescence for Assessing Drug Potency against Nonreplicating Mycobacterium tuberculosis

Stewart Cole, Neeraj Dhar, Claudia Sala, Anthony Vocat, Ruben Hartkoorn, Ming Zhang, Benoit Lechartier

Targeting dormant Mycobacterium tuberculosis represents a challenge to antituberculosis drug discovery programs. We previously reported and validated the use of the streptomycin (STR)-dependent M. tuberculosis 18b strain as a tool for assessing drug potenc ...

American Society for Microbiology2015

Simple and Rapid Method To Determine Antimycobacterial Potency of Compounds by Using Autoluminescent Mycobacterium tuberculosis

Neeraj Dhar, Ekaterina Gelman

A major obstacle in the process of discovery of drugs against Mycobacterium tuberculosis is its extremely slow growth rate and long generation time (similar to 20 to 24 h). Consequently, determination of MICs and minimum bactericidal concentrations (MBCs) ...

Amer Soc Microbiology2014

Digital approaches in Electronic biochips

Carlotta Guiducci, Enrico Accastelli, Fabio Mario Spiga

Download Citation Email Print Request Permissions Save to Project Electronic biochips are defined by the merge of integrated electronics, containing diverse sensors, with reaction solution and sample hold in reaction chamber(s). Based on their overall stru ...

IEEE2013

Use of the mitochondria toxicity assay for quantifying the viable cell density of microencapsulated jurkat cells

Jutta Christine Wandrey, Redouan Mahou, Michael Werner

The mitochondria toxicity assay (MTT assay) is an established method for monitoring cell viability based on mitochondrial activity. Here the MTT assay is proposed for the in situ quantification of the living cell density of microencapsulated Jurkat cells. ...

Wiley-Blackwell2013

Fused 3-Hydroxy-3-trifluoromethylpyrazoles Inhibit Mutant Huntingtin Toxicity

Here, we describe the selection and optimization of a chemical series active in both a full-length and a fragment-based Huntington's disease (HD) assay. Twenty-four thousand small molecules were screened in a phenotypic HD assay, identifying a series of co ...

Amer Chemical Soc2013

Automated Analysis of Rare Biomarkers Using a Magnetic Bead Surface Coverage Assay Coupled with Chaotic Mixing on a Microfluidic Chip

Hüseyin Cumhur Tekin

Extremely sensitive protein detection is crucial for early diagnosis and monitoring of diseases. Present day’s limit of detection for an antibody-antigen recognition-based immunoassay in serum without having to use special target antigen amplification tech ...

EPFL2012

Carbohydrate sensing with a metal-based indicator displacement assay

Kay Severin, Vera Janowski

A Pd-based indicator displacement assay for the fluorimetric sensing of carbohydrates has been developed. The assay allows the detection of saccharides in the low millimolar concentration range in water at neutral pH. ...

Royal Society of Chemistry2011

A simple fluorescence assay for the detection of fluoride in water at neutral pH

Kay Severin, Sébastien Rochat

A simple assay for the detection of fluoride in water by fluorescence spectroscopy was developed. The assay is based on commercially available reagents and allows sensing of fluoride in the low millimolar concentration range with high selectivity over othe ...

Royal Society of Chemistry2011

Target of rapamycin modulators of and use thereof

Yann Barrandon, Fahd Azzabi Zouraq

The present invention is related to new molecules capable of interacting with target of rapamycin (TOR) transcriptional complex. In particular, the present invention provides novel nucleic acid molecules, processes for production thereof, kits containing t ...

2009

Magnetic beads retention device for sandwich immunoassay: comparison of off-chip and on-chip antibody incubation

Martinus Adela Maria Gijs, Caroline Vandevyver, Frédéric Lacharme

We use magnetic microbeads, which are magnetically self-assembled in chains in a microfluidic chip, as reaction substrates to implement two different sandwich immunoassay protocols for the detection of mouse monoclonal target antibodies. The magnetic chain ...

Springer-Verlag2009

Electrical cell manipulation in microfluidic systems

Urban Seger

This dissertation reports on the development of devices and concepts for electrical and microfluidic cell manipulation. In the present context, the term cell manipulation stands for both cell handling and cell modification. The combination of microfluidic ...

EPFL2006

Microscale total analysis system

Hubert Girault

The invention relates to an apparatus for performing chemical assays in an aqueous medium. The apparatus contains a reaction chamber(s) and a liquid in-flow channel connected to each chamber. The flow of liquid through the fluid in-flow channel to the reac ...

2005