Publications associées à Optical imaging of molecules and their dynamics from surfaces to nanoscale confinement

Publications associées (12)

Optical tweeze-sectioning microscopy for 3D imaging and manipulation of suspended cells

Xiaohao Xu, Olivier Martin, Siarhei Zavatski

Optical manipulation and detection of biological particulates are crucial procedures in biophotonics. Optical sectioning (OS) opens the avenue to three-dimensional (3D) microscopy, but nonoptical approaches, including sample adhesion and mechanical scannin ...

American Association for the Advancement of Science (AAAS)2025

Intelligent and Self-Driving Microscopy of Protein Aggregation in Neurodegenerative Diseases

Khalid Ashraf Mohie Ibrahim

Neurodegenerative diseases, such as Alzheimer's, Parkinson's, and Huntington's, afflict tens of millions of patients worldwide. They are characterized by protein aggregation and progressive neuronal loss, leading to cognitive and motor impairments, and ult ...

EPFL2025

Spatial and stoichiometric in situ analysis of biomolecular oligomerization at single-protein resolution

Maartje Martina Cornelia Bastings

Latest advances in super-resolution microscopy allow the study of subcellular features at the level of single proteins, which could lead to discoveries in fundamental biological processes, specifically in cell signaling mediated by membrane receptors. Desp ...

Springer Science and Business Media LLC2025

Dissecting the mechanisms of centriole stability in Caenorhabditis elegans: Focus on SAS-1

Keshav Jha

Centrioles are evolutionarily conserved microtubule-based organelles essential for cell division, ciliogenesis, and cell polarity. While centrioles are critical for many cellular processes, their selective elimination is crucial during specific development ...

EPFL2025

Non-Resonant Magnetic X-ray Scattering as a Probe of Ultrafast Molecular Spin-State Dynamics: An Ab Initio Theory

Zhaoheng Guo

With the advancement of high harmonic generation and X-ray free-electron lasers (XFELs) to the attosecond domain, the studies of the ultrafast electron and spin dynamics became possible. Yet, the methods for efficient control and measurement of the quantum ...

AMER CHEMICAL SOC2025

Nonreciprocal Spin Waves in Nanoscale Hybrid Néel–Bloch–Néel Domain Walls Detected by Scanning X‐Ray Microscopy in Perpendicular Magnetic Anisotropic Fe/Gd Multilayers

Axel Johan Marie Deenen, Dirk Grundler, Andrea Mucchietto, Ping Che, Korbinian Baumgärtl

Spin wave nonreciprocity is crucial for signal processing in magnonic circuits. Domain walls (DWs) have been suggested as channels for nonreciprocal spin waves (magnons) with directional‐dependent properties. However, the experimental investigations are ch ...

Wiley2025

Individual nanostructures in an epsilon-near-zero material probed with 3D-sculpted light

Lisa Jutta Ackermann

Epsilon-near-zero (ENZ) materials, i.e., materials with a vanishing real part of the permittivity, have become an increasingly desirable platform for exploring linear and nonlinear optical phenomena in nanophotonic and on-chip environments. ENZ materials i ...

Optica Publishing Group2024

Resolving localized geometrically necessary dislocation densities in Al-Mg polycrystal via in situ EBSD

Xiaojiao You

The distribution of geometrically necessary dislocation (GND) densities is critical to understanding the heterogeneous plastic deformation at intragranular scales in polycrystals. In this work, we performed an in situ electron backscatter diffraction (EBSD ...

PERGAMON-ELSEVIER SCIENCE LTD2024

Exchangeable HaloTag Ligands for Super-Resolution Fluorescence Microscopy

Kai Johnsson, Michelle Susanne Frei

The specific and covalent labeling of the protein HaloTag with fluorescent probes in living cells makes it a powerful tool for bioimaging. However, the irreversible attachment of the probe to HaloTag precludes imaging applications that require transient bi ...

AMER CHEMICAL SOC2023

Harnessing data science to improve molecular structure elucidation from tandem mass spectrometry

Fernando Perez Cruz, Guillaume Romain Obozinski, Marco Volpi

Compound structural identification for non-targeted screening of organic molecules in complex mixtures is commonly carried out using liquid chromatography coupled to tandem mass spectrometry (UHPLC-HRMS/MS and related techniques). Instrumental developments ...

2023

Focus image scanning microscopy for sharp and gentle super-resolved microscopy

Giorgio Tortarolo

To date, the feasibility of super-resolution microscopy for imaging live and thick samples is still limited. Stimulated emission depletion (STED) microscopy requires high-intensity illumination to achieve sub-diffraction resolution, potentially introducing ...

Nature Portfolio2022

On Analog Silicon Photomultipliers in Standard 55-nm BCD Technology for LiDAR Applications

Edoardo Charbon, Francesco Gramuglia, Myung Jae Lee, Pouyan Keshavarzian, Tommaso Milanese, Jiuxuan Zhao

We present an analog silicon photomultiplier (SiPM) based on a standard 55-nm Bipolar-CMOS-DMOS (BCD) technology. The SiPM is composed of 16 x 16 single-photon avalanche diodes (SPADs) and measures 0.29 x 0.32 mm(2). Each SPAD cell is passively quenched by ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022