Publications by Jiangtao Zhou | EPFL Graph Search

An Optical Fiber-Based Nanomotion Sensor for Rapid Antibiotic and Antifungal Susceptibility Tests

Giovanni Dietler, Sandor Kasas, Serguei Sekatski, Anne-Céline Verenna Kohler, Jiangtao Zhou, María Inés Villalba, Leonardo Venturelli

The emergence of antibiotic and antifungal resistant microorganisms represents nowadays a major public health issue that might push humanity into a post-antibiotic/antifungal era. One of the approaches to avoid such a catastrophe is to advance rapid antibi ...

Amer Chemical Soc2024

Hierarchical Protofilament Intertwining Rules the Formation of Mixed‐Curvature Amyloid Polymorphs

Henning Paul-Julius Stahlberg, Giovanni Dietler, Serguei Sekatski, Francesco Simone Ruggeri, Jiangtao Zhou, Meltem Tatli

Amyloid polymorphism is a hallmark of almost all amyloid species, yet the mechanisms underlying the formation of amyloid polymorphs and their complex architectures remain elusive. Commonly, two main mesoscopic topologies are found in amyloid polymorphs cha ...

Wiley2024

3D printed fiber-optic nanomechanical bioprobe

Sandor Kasas, Yuguang Chen, Jiangtao Zhou, Yiping Wang

Ultrasensitive nanomechanical instruments, e.g. atomic force microscopy (AFM), can be used to perform delicate biomechanical measurements and reveal the complex mechanical environment of biological processes. However, these instruments are limited because ...

IOP Publishing Ltd2023

Recent advances in fiber optic sensors for respiratory monitoring

Dan Liu, Jiangtao Zhou, Yiping Wang

There is a growing need to measure respiratory rate (RR) in a variety of applications, including in clinical and occupational settings, as well as during physical exercises. Fiber optic sensors (FOSs) is an attractive solution for wearable RR monitoring be ...

ELSEVIER SCIENCE INC2022

Environmental Control of Amyloid Polymorphism by Modulation of Hydrodynamic Stress

Giovanni Dietler, Sandor Kasas, Serguei Sekatski, François Gallaire, Jiangtao Zhou, Leonardo Venturelli, Ludovic Pierre Gustave Keiser

The phenomenon of amyloid polymorphism is a key feature of protein aggregation. Unravelling this phenomenon is of great significance for understanding the underlying molecular mechanisms associated with neurodegenerative diseases and for the development of ...

AMER CHEMICAL SOC2021

Effects of sedimentation, microgravity, hydrodynamic mixing and air-water interface on alpha-synuclein amyloid formation

Giovanni Dietler, Giovanni Longo, Francesco Simone Ruggeri, Jiangtao Zhou

The formation of amyloid fibrils is a characterizing feature of a range of protein misfolding diseases, including Parkinson's disease. The propensity of native proteins to form such amyloid fibril, both in vitro and in vivo, is highly sensitive to the surr ...

2020

Nanoscale Characterization of Amyloid Fibrils and Biomacromolecules by Atomic Force Microscopy Approaches

Jiangtao Zhou

This thesis focuses on the interdisciplinary biophysical research field, in which physical approaches are applied to study the biological phenomena. Specifically, the main object of the research in this thesis is to target biological species,especially the ...

EPFL2020

Fiber-interface directional coupler inscribed by femtosecond laser for refractive index measurements

Jiangtao Zhou, Jiachen Wang, Zhechen Zhang, Yiping Wang

A novel fiber-interface directional waveguide coupler was inscribed on the surface of a coreless fiber by femtosecond laser, and was successfully applied to highly sensitive refractive index (RI) measurements. The primary arm was first inscribed to couple ...

2020

Gap Plasmon Enhanced High Spatial Resolution Imaging by Photothermal Induced Resonance in Visible Spectral Range

Giovanni Dietler, Serguei Sekatski, Anton Smirnov, Jiangtao Zhou

CELL PRESS2020

The role of xanthophylls in the supramolecular organization of the photosynthetic complex LHCII in lipid membranes studied by high-resolution imaging and nanospectroscopy

Giovanni Dietler, Serguei Sekatski, Jiangtao Zhou

The xanthophyll cycle is a regulatory mechanism operating in the photosynthetic apparatus of plants. It consists of the conversion of the xanthophyll pigment violaxanthin to zeaxanthin, and vice versa, in response to light intensity. According to the curre ...

ELSEVIER2020

Fiber-Tip Polymer Microcantilever for Fast and Highly Sensitive Hydrogen Measurement

Giovanni Dietler, Sandor Kasas, Meng Zhu, Cong Xiong, Jiangtao Zhou, Leonardo Venturelli, Chaohui Li, Yiping Wang

Hydrogen as an antioxidant gas has been widely used in the medical and biological fields for preventing cancer or treating inflammation. However, controlling the hydrogen concentration is crucial for practical use due to its explosive property when its vol ...

AMER CHEMICAL SOC2020

Gap-Plasmon-Enhanced High-Spatial-Resolution Imaging by Photothermal-Induced Resonance in the Visible Range

Giovanni Dietler, Serguei Sekatski, Anton Smirnov, Jiangtao Zhou

Chemical characterization at the nanoscale is of significant importance for many applications in physics, analytical chemistry, material science, and biology. Despite the intensive studies in the infrared range, high-spatial resolution and high-sensitivity ...

AMER CHEMICAL SOC2019

Identification and Study of Polymorphic Structures of Hierarchically Twisted Amyloid Fibrils by Atomic Force Microscope

Giovanni Dietler, Serguei Sekatski, Jiangtao Zhou

CELL PRESS2019

Universal Soft Robotic Microgripper

Giovanni Dietler, Mahmut Selman Sakar, Erik Mailand, Jiangtao Zhou, Zhangjun Huang, John Martin Kolinski, Haiyan Jia, Xunhui Wang

2019

Europium-Doped CsPbI2Br for Stable and Highly Efficient Inorganic Perovskite Solar Cells

Michael Graetzel, Giovanni Dietler, Ulf Anders Hagfeldt, Dominik Józef Kubicki, Wolfgang Richard Tress, Jingshan Luo, David Lyndon Emsley, Jiangtao Zhou, Daniel Prochowicz, Zaiwei Wang, Wanchun Xiang, Seckin Akin

All-inorganic perovskite films hold promise for improving the stability of perovskite solar cells (PSCs). However, the 3D alpha phase of narrow-bandgap inorganic perovskites is thermodynamically unstable at room temperature, limiting the development of hig ...

CELL PRESS2019

Novel fabrication technique for phase-shifted fiber Bragg gratings using a variable-velocity scanning beam and a shielded phase mask

Jiangtao Zhou, Yiping Wang

2018