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Giovanni Boero

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Publications associées (86)

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Reversible Drug Delivery: Thermal and pH Sensitive Composite Membrane for On‐Demand Drug Delivery by Applying an Alternating Magnetic Field (Adv. Mater. Interfaces 17/2020)

Giovanni Boero, Jürgen Brugger, Xiao Sheng Zhang, Ya Wang

In article number 2000733 by Juergen Brugger and co‐workers, a novel composite membrane of silk fibroin, microgels and magnetic nanoparticles whose permeability can be adjusted by temperature for controlled drug release is studied. The temperature induced ...

2020

Integrated Nickel Micro-Nano-Hall Sensors on SU-8 Cantilevers for Scanning Hall Probe Microscopy

Radivoje Popovic, Giovanni Boero, Christian Santschi, Jürgen Brugger, Schahrazede-Lila Mouaziz, Oscar Vazquez Mena

We report the fabrication and characterization of nickel Hall sensors integrated on SU-8 cantilevers. Sensors having active area down to 1x1 μm 2 show a magnetic field resolution better than 1μT/Hz 1/2 in the thermal noise frequency range. The fabricated d ...

IEEE2007

Precise Capillary‐Assisted Nanoparticle Assembly in Reusable Templates

Giovanni Boero, Jürgen Brugger, Olivier Martin, Henry Shao-Chi Yu, Hsiang-Chu Wang, Ana Conde Rubio

Capillary-assisted particle assembly (CAPA) in predefined topographical templates is a scalable method for the precise positioning of nanoscale objects on various surfaces. High-resolution CAPA templates are typically fabricated by expensive electron-beam ...

2022

A Glass-Like Carbon Mems Strain Sensor

Giovanni Boero, Jürgen Brugger, Jongmoon Jang

Glass-like carbon (GC) has been widely used in micro-nano devices due to its excellent properties such as hardness, biocompatibility, and chemical inertness. In this work we investigate, for the first time, the piezoresistive behavior of GC in view of its ...

IEEE2021

CMOS and 3D Printing for NMR Spectroscopy at the Single Embryo Scale

Johann Michler, Giovanni Boero, Martinus Adela Maria Gijs, Franck Vincent, Jürgen Brugger, Nicola Harris, Enrica Montinaro, Laszlo Pethö, Beatrice Volpe, Marco Grisi, Maria Cristina Letizia

SWISS CHEMICAL SOC2019

Element-resolved x-ray ferrimagnetic and ferromagnetic resonance spectroscopy

Giovanni Boero, Pietro Gambardella, Stefano Rusponi, Schahrazede-Lila Mouaziz

Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft2008

Direct observation of nuclear spin diffusion in real space

Giovanni Boero, Jürgen Brugger, Schahrazede-Lila Mouaziz

Images directly visualizing the spatial spin-diffusion process are reported. The measurements were performed using a magnetic resonance force microscope. The field gradient associated with the forcedetection experiment is large enough to affect the spin dy ...

2007

SU-8 cantilever with integrated pyrolyzed glass-like carbon piezoresistor

Giovanni Boero, Jürgen Brugger, Giulia Panusa, Jongmoon Jang

Glass-like carbon (GC) is a nongraphitizing material composed entirely of carbon atoms produced from selected organic polymer resins by controlled pyrolysis in an inert atmosphere. The GC properties are a combination of the properties of glass, ceramic, an ...

SPRINGERNATURE2022

A Low-Power Microwave HEMT $LC$ Oscillator Operating Down to 1.4 K

Giovanni Boero, Alessandro Valentino Matheoud, Nergiz Sahin Solmaz

High-electron-mobility transistors (HEMTs) based on 2-D electron gases (2DEGs) in III-V heterostructures have superior mobility compared with the transistors of silicon-based complementary metal-oxide-semiconductor technologies. The large mobility makes th ...

Institute of Electrical and Electronics Engineers2019

Highly Sensitive Cantilevers, with and without Magnetic Tip, for Magnetic Resonance Force Microscopy

Giovanni Boero, Jürgen Brugger, Schahrazede-Lila Mouaziz

In this paper we present the fabrication and characterization of highly sensitive cantilevers, with and without magnetic tip, used for magnetic resonance force microscopy experiments. The full wafer silicon batch microfabrication was successful and the ach ...

IEEE2007

A Low-Noise CMOS Receiver Frontend for MRI

Giovanni Boero, Jens Anders

In this paper a novel architecture for an integrated receiver front-end for micro magnetic resonance imaging (micro-MRI) applications is described. While the chip consumes only 9mA supply current (4mA in the LNA and 5mA in the output buffer) from a 33V pow ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

Deterministic grayscale nanotopography to engineer mobilities in strained MoS2 FETs

Giovanni Boero, Andras Kis, Jürgen Brugger, Georg Fantner, Nicola Marzari, Norma Rivano, Zhenyu Wang, Xia Liu, Ana Conde Rubio, Berke Erbas, Mitali Banerjee, Jin Jiang, Marcos Penedo Garcia

Field-effect transistors (FETs) based on two-dimensional materials (2DMs) with atomically thin channels have emerged as a promising platform for beyond-silicon electronics. However, low carrier mobility in 2DM transistors driven by phonon scattering remain ...

Nature Research2024

Single-Cell 3D Bio-Mems Environment With Engineered Geometry And Physiologically Relevant Stiffnesses

Giovanni Boero, Jürgen Brugger, Mattia Marelli

We present a three dimensional (3D) microenvironment for on-chip cell culture, with engineered geometrical and mechanical properties. The device, named mu-flower, is based on micorfabricated cantilever beams bent out of plane by the intrinsic stresses of a ...

Ieee2014

An integrated micro-Hall probe for scanning magnetic microscopy

Radivoje Popovic, Giovanni Boero, Pavel Kejik

Anewmicrosystem with the ability to detect magnetic microstructures based on the non-invasive Hall principle is presented. The micro-Hall plate embedded in the microsystem and scaled down to the physical limits of the employedCMOStechnology has an active a ...

Elsevier2006

Photoinduced Nonpersistent Radicals as Polarizing Agents for X-Nuclei Dissolution Dynamic Nuclear Polarization

Arnaud Comment, Jacques Van Der Klink, Giovanni Boero, Christophe Roussel, Tian Cheng, Tim Rolf Eichhorn, Jean-Noël Hyacinthe, Andrea Capozzi

Hyperpolarization via dissolution dynamic nuclear polarization (DNP) is a versatile method to dramatically enhance the liquid-state NMR signal of X-nuclei and can be used for performing metabolic and molecular imaging. It was recently demonstrated that ins ...

American Chemical Society2015

Ferrimagnetic resonance field sensors for particle accelerators

Giovanni Boero, Anthony Jean Beaumont

We report on two ferrimagnetic resonance (FMR) sensors for absolute dynamic magnetic field measurements at 36 and 100 mT. The sensors are designed to mark precisely and reproducibly the moment when a time-transient magnetic field attains a specific value. ...

AMER INST PHYSICS2019

A broadband single-chip transceiver for multi-nuclear NMR probes

Giovanni Boero, Gabriele Gualco, Marco Grisi

In this article, we present an integrated broadband complementary metal-oxide semiconductor single-chip transceiver suitable for the realization of multi-nuclear pulsed nuclear magnetic resonance (NMR) probes. The realized single-chip transceiver can be in ...

American Institute of Physics2015

NMR microsystem for label-free characterization of 3D nanoliter microtissues

Giovanni Boero, Jürgen Brugger, Marco Grisi, Gaurasundar Marc Conley, Kyle Joel Rodriguez

Performing chemical analysis at the nanoliter (nL) scale is of paramount importance for medicine, drug development, toxicology, and research. Despite the numerous methodologies available, a tool for obtaining chemical information non-invasively is still mi ...

Nature Research2020

Integrated NMR probe for magnetometry

Giovanni Boero

EPFL2000

Cryogenic single-chip electron spin resonance detector

Stefano Alberti, László Forró, Andrzej Sienkiewicz, Giovanni Boero, Jens Anders, Gabriele Gualco

We report on the design and characterization of a single-chip electron spin resonance detector, operating at a frequency of about 20 GHz and in a temperature range extending at least from 300 K down to 4 K. The detector consists of an LC oscillator formed ...

Academic Press Inc - Elsevier Science2014