Publications by Rosario Maurizio Gullo

Rapid carbon nanotubes suspension in organic solvents using organosilicon polymers

Jürgen Brugger, Jonas Grossenbacher, Rosario Maurizio Gullo

A strategy for a simple dispersion of commercial multi-walled carbon nanotubes (MWCNTs) using two organosilicones, polycarbosilane SMP10 and polysilazane Ceraset PSZ20, in organic solvents such as cyclohexane, tetrahydrofuran (THF), m-xylene and chloroform ...

Elsevier2016

On the micrometre precise mould filling of liquid polymer derived ceramic precursor for 300-µm-thick high aspect ratio ceramic MEMS

Jürgen Brugger, Jonas Grossenbacher, Rosario Maurizio Gullo

This paper describes a novel and scalable method for the fabrication of polymer derived ceramics (PDC) structures with high aspect ratio and micrometre scale features. Elastomeric micro-moulds composed of a filling pot are used to deliver via sacrificial m ...

Elsevier2015

Inkjet printed superparamagnetic polymer composite hemispheres with programmed magnetic anisotropy

Jürgen Brugger, Loïc Jacot-Descombes, Victor Javier Cadarso Busto, Rosario Maurizio Gullo, Massimo Mastrangeli, Berna Ayse Özkale Edelmann, Christofer Hierold

We present the fabrication and characterization of large arrays of inkjet-printed superparamagnetic polymer composite (SPMPC) hemispherical microstructures. SPMPCs are appealing for applications in microsystems and nanorobotics due to the added functionali ...

Royal Soc Chemistry2014

Liquid-Filled Sealed Mems Capsules Fabricated By Fluidic Self-Assembly

Jürgen Brugger, Loïc Jacot-Descombes, Rosario Maurizio Gullo, Massimo Mastrangeli

We present a new method to encapsulate functional liquids into sealed MEMS capsules by fluidic self-assembly. Self-assembly of 200 mu m SU-8 cargos and picoliter liquid co-encapsulation are driven by the interplay of global fluidic drag and short-range cap ...

IEEE2014

Fluid-mediated parallel self-assembly of polymeric micro-capsules for liquid encapsulation and release

Alcherio Martinoli, Jürgen Brugger, Grégory Mermoud, Loïc Jacot-Descombes, Luis Guillermo Villanueva Torrijo, Cristina Martin Olmos, Victor Javier Cadarso Busto, Rosario Maurizio Gullo, Massimo Mastrangeli

Fluid-mediated self-assembly is one of the most promising routes for assembling and packaging smart microsystems in a scalable and cost-efficient way. In this work the pairwise fluidic self-assembly of 100 μm-sized SU-8 cylinders is studied with respect to ...

2013

In-liquid MEMS assembly by optical trapping

Jürgen Brugger, Loïc Jacot-Descombes, Rosario Maurizio Gullo

This paper presents a novel in-liquid method to manipulate and micro-assemble MEMS in 3D by means of holographic optical trapping and hydrophobic interaction. Up to eight traps can be simultaneously generated with a trapping stiffness of 5 pN/mu m each. SU ...

IEEE2013

Inkjet-printed SU-8 Hemispherical Microcapsules and Silicon chip Embedding

Jürgen Brugger, Loïc Jacot-Descombes, Victor Javier Cadarso Busto, Rosario Maurizio Gullo, Massimo Mastrangeli

Planar lithography techniques are not effective for precise fabrication of microdevices with hemispherical shapes. Drop-on-demand (DOD) inkjet printing (IJP) of photo-curable ink is a more appropriate fabrication approach as it takes advantage of the surfa ...

2013

Acousto-fluidic system assisting in-liquid self-assembly of microcomponents

Alcherio Martinoli, Jürgen Brugger, Grégory Mermoud, Loïc Jacot-Descombes, Rosario Maurizio Gullo, Massimo Mastrangeli, Helmut Knapp

In this paper, we present the theoretical background, design, fabrication and characterization of a micromachined chamber assisting the fluidic self-assembly of micro-electro-mechanical systems in a bulk liquid. Exploiting bubble-induced acoustic microstre ...

2013

Integrated long-range thermal bimorph actuators for parallelizable bio-AFM applications

Jürgen Brugger, Jonas Gustav Henriksson, Rosario Maurizio Gullo

AFM-based cell force spectroscopy is an emerging research method that already has enhanced our understanding of the structural changes that take place in a cell as it becomes cancerous. However, the method is limited as it is not time-efficient in its curr ...

Institute of Electrical and Electronics Engineers2013

Sub micrometer ceramic structures fabricated by molding a polymer-derived ceramic

Jürgen Brugger, Raphael Grandjean, Thomas Kiefer, Jonas Grossenbacher, Rosario Maurizio Gullo

This paper describes the fabrication of sub micrometer silicon oxycarbide (SiCO) ceramic structures. The method consists in replicating silicon micro/nanostructures in polydimethylsiloxane (PDMS), followed by a micro/nano molding of liquid polymer derived ...

Elsevier2012

Fabrication of epoxy spherical microstructures by controlled drop-on-demand inkjet printing

Jürgen Brugger, Loïc Jacot-Descombes, Victor Javier Cadarso Busto, Rosario Maurizio Gullo

Well-controlled spherical microstructures open new possibilities for several MEMS devices, such as hemispherical microfluidic channels or micro-optical elements. However, machining of micro-spherical shapes has proven to be difficult with conventional plan ...

Institute of Physics2012

3D hybrid microcomponents self-assembled in liquid

Jürgen Brugger, Loïc Jacot-Descombes, Victor Javier Cadarso Busto, Rosario Maurizio Gullo

2012

Hydrodynamic Trap for Directed Self-Assembly of MEMS

Jürgen Brugger, Loïc Jacot-Descombes, Rosario Maurizio Gullo

This paper presents the realization of a hydrodynamic microfluidic trap with the goal of sorting MEMS for self-assembly experiments in liquid. A simplified analytical design rule has been compiled and numerically verified. Microfluidic devices have been fa ...

2012

OPTIMIZATION OF THE PHOTOPOLYMERIZATION OF A POLYMER DERIVED CERAMIC

Jürgen Brugger, Jonas Grossenbacher, Rosario Maurizio Gullo

2012

Characterization of Hydrophobic Forces for in Liquid Self-Assembly of Micron-Sized Functional Building Blocks

Laure Aeschimann, Jürgen Brugger, Loïc Jacot-Descombes, Rosario Maurizio Gullo

This paper presents the experimental and numerical study of hydrophobic interaction forces at nanometer scale in the scope of engineering micron-sized building blocks for self-assembly in liquid. The hydrophobic force distance relation of carbon, Teflon an ...

2011 Materials Research Society2011