Publication

Tuning growth direction of catalyst-free InAs(Sb) nanowires with indium droplets

Publications associées (31)

Fundamental aspects to localize self-catalyzed III-V nanowires on silicon

Anna Fontcuberta i Morral, Jelena Vukajlovic Plestina, Martin George Friedl, Heidi Andrea Potts, William Craig Carter, Lea Ghisalberti, Wonjong Kim, Vladimir Dubrovskii

III-V semiconductor nanowires deterministically placed on top of silicon electronic platform would open many avenues in silicon-based photonics, quantum technologies and energy harvesting. For this to become a reality, gold-free site-selected growth is nec ...

Nature Research2019

The heparin binding domain of von Willebrand factor binds to growth factors and promotes angiogenesis in wound healing

Matthias Lütolf, Jeffrey Alan Hubbell, Yoji Tabata, Jun Ishihara, Kazuto Fukunaga

During wound healing, the distribution, availability, and signaling of growth factors (GFs) are orchestrated by their binding to extracellular matrix components in the wound microenvironment. Extracellular matrix proteins have been shown to modulate angiog ...

AMER SOC HEMATOLOGY2019

Kinetics and Mechanism of Metal Nanoparticle Growth via Optical Extinction Spectroscopy and Computational Modeling: The Curious Case of Colloidal Gold

Paul Bowen, Alexander Wokaun, Andrea Testino, Mohammad Reza Andalibi

An overarching computational framework unifying several optical theories to describe the temporal evolution of gold nanoparticles (GNPs) during a seeded growth process is presented. To achieve this, we used the inexpensive and widely available optical exti ...

2019

Required growth facilitators propel axon regeneration across complete spinal cord injury

Sabry Leonardo Barlatey, Grégoire Courtine, Cheng Wang, Mark Andrew Anderson, Michael V. Sofroniew, Zhigang He, Nicholas David James

Transected axons fail to regrow across anatomically complete spinal cord injuries (SCI) in adults. Diverse molecules can partially facilitate or attenuate axon growth during development or after injury1,2,3, but efficient reversal of this regrowth failure ...

2018

Single Live Cell Monitoring of Protein Turnover Reveals Intercellular Variability and Cell-Cycle Dependence of Degradation Rates

Felix Naef, Eric Paquet, David Michael Suter, Martina Biserni, Andrea Brigitta Alber

Cells need to reliably control their proteome composition to maintain homeostasis and regulate growth. How protein synthesis and degradation interplay to control protein expression levels remains unclear. Here, we combined a tandem fluorescent timer and pu ...

CELL PRESS2018

Chemical composition, nutrient-balancing and biological treatment of hand washing greywater

Odile Marie Clotilde Hervás de Nalda-Larivé, Eva Reynaert

On-site biological hand washing water treatment can improve global access to safe hand washing water, but requires a thorough understanding of the chemical composition of the water to be treated, and an effective treatment strategy. This study first presen ...

2018

An essential thioredoxin is involved in the control of the cell cycle in the bacterium Caulobacter crescentus

Camille Véronique Bernadette Goemans

Thioredoxins (Trxs) are antioxidant proteins that are conserved among all species. These proteins have been extensively studied and perform reducing reactions on a broad range of substrates. Here, we identified Caulobacter crescentus Trx1 (CCNA_03653; CcTr ...

2018

Dopant-Induced Modifications of GaxIn(1-x)P Nanowire-Based p-n Junctions Monolithically Integrated on Si(111)

Kirsten Emilie Moselund, Anna Fontcuberta i Morral, Heike Riel, Rolf Erni, Luca Francaviglia, Nicolas Bologna

Today, silicon is the most used material in photovoltaics, with the maximum conversion efficiency getting very close to the Shockley-Queisser limit for single-junction devices. Integrating silicon with higher band-gap ternary III-V absorbers is the path to ...

2018

The growth and optical properties of III-V nanostructures grown by Molecular Beam Epitaxy

Gözde Tütüncüoglu

This thesis is dedicated to the growth and characterization of the optoelectronic properties of III-V semiconductor nanostructures namely nanowires and nanoscale membranes. III-V semiconductors possess promising intrinsic properties like direct band gap, h ...

EPFL2017

Tilting Catalyst-Free InAs Nanowires by 3D-Twinning and Unusual Growth Directions

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Jean-Baptiste Leran, Martin George Friedl, Heidi Andrea Potts, Youri Louis Winandus Van Hees

Controlling the growth direction of nanowires is of strategic importance both for applications where nanowire arrays are contacted in parallel and for the formation of more complex nanowire networks. We report on the existence of tilted InAs nanowires on ( ...

American Chemical Society2017

Influencing axon regeneration after spinal cord injury

Mark Andrew Anderson

Spinal cord injury (SCI) results in a severing of axonal connections that leads to permanent sensorimotor deficits. In cases of incomplete injury, rehabilitation paradigms have been reported to be successful in improving behavioral outcome in humans with S ...

EPFL2017