Publications related to Cell physiology

Protocol for live imaging of intracellular nanoscale structures using atomic force microscopy with nanoneedle probes

Atomic force microscopy (AFM) is capable of nanoscale imaging but has so far only been used on cell surfaces when applied to a living cell. Here, we describe a step-by-step protocol for nanoendoscopy-AFM, which enables the imaging of nanoscale structures i ...

2023

New and improved methods for integrated models of metabolism and gene expression

Pierre Guy Rémy Salvy

The beginning of the 21st century was marked by the advent of disruptive technologies, which ushered an era of groundbreaking advances in fundamental sciences, carried by the great pace at which computational capabilities spread and evolved. But the new ce ...

EPFL2021

Visualizing intracellular nanostructures of living cells by nanoendoscopy-AFM

Marcos Penedo Garcia

Atomic force microscopy (AFM) is the only technique that allows label-free imaging of nanoscale biomolecular dynamics, playing a crucial role in solving biological questions that cannot be addressed by other major bioimaging tools (fluorescence or electron ...

AMER ASSOC ADVANCEMENT SCIENCE2021

Quantum Sensing of Free Radicals in Primary Human Dendritic Cells

Mayeul Sylvain Chipaux

Free radicals are crucial indicators for stress and appear in all kinds of pathogenic conditions, including cancer, cardiovascular diseases, and infection. However, they are difficult to detect due to their reactivity and low abundance. We use relaxometry ...

AMER CHEMICAL SOC2022

Planar Optical Nanoantennas Resolve Cholesterol-Dependent Nanoscale Heterogeneities in the Plasma Membrane of Living Cells

Jürgen Brugger, Valentin Flauraud, Pamina Winkler, Raju Regmi

Optical nanoantennas can efficiently confine light into nanoscopic hotspots, enabling single-molecule detection sensitivity at biological relevant conditions. This innovative approach to breach the diffraction limit offers a versatile platform to investiga ...

2017

Direct visualization of dispersed lipid bicontinuous cubic phases by cryo-electron tomography

Cécile Hébert, Davide Demurtas, Paul Guichard, Raffaele Mezzenga

Bulk and dispersed cubic liquid crystalline phases (cubosomes), present in the body and in living cell membranes, are believed to play an essential role in biological phenomena. Moreover, their biocompatibility is attractive for nutrient or drug delivery s ...

Nature Publishing Group2015

Ultra-soft cantilevers and 3-D micro-patterned substrates for contractile bundle tension measurement in living cells

Jean-Jacques Meister, Niccolo Piacentini, Chiara Gabella, Alexander Verkhovskiy, Benoît Vianay

Actin-myosin microfilament bundles or stress-fibers are the principal tension-generating structures in the cell. Their mechanical properties are critical for cell shape, motion, and interaction with other cells and extracellular matrix, but were so far dif ...

Royal Society of Chemistry2014

Bioanalytical reagent, method for production thereof, sensor platforms and detection methods based on use of said bioanalytical reagent

Horst Vogel, Horst Pick

The invention relates to various embodiments of a bioanalytical reagent with at least one vesicle, generated from a living cell, comprising at least one receptor, characterized in that a mechanism of signal transduction triggered by said receptor in the ce ...

2011

Cyclosporine A-Sensitive, Cyclophilin B-Dependent Endoplasmic Reticulum-Associated Degradation

Maurizio Molinari, Riccardo Bernasconi

Peptidyl-prolyl cis/trans isomerases (PPIs) catalyze cis/trans isomerization of peptide bonds preceding proline residues. The involvement of PPI family members in protein refolding has been established in test tube experiments. Surprisingly, however, no da ...

Public Library of Science2010

Covalent labeling and chemical induced dimerization of fusion proteins

A new method was developed for the specific and covalent labeling of fusion proteins with small organic probes in vitro and in vivo. The method is based on the construction of fusion proteins of the human O6-alkylguanine-DNA alkyltransferase (hAGT) with a ...

EPFL2005

Degradation studies and directed evolution of the human O6-alkylguanine-DNA-alkyltransferase

Thomas Gronemeyer

A new technology for the specific and covalent labelling of fusion proteins with small organic molecules in vivo and in vitro has recently been developed in our laboratory. The method is based on the genetically encoded fusion of a target protein to O6-alk ...

EPFL2005