ANGELI , Elena

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The paper describes a reliable technique to prepare PDMS membrane used to determine the permeability to CO2 and He. SEM controls morphology of surface membrane and SEM/FIB measures the membrane thickness. The data show that permeability becomes thickness dependent below some tens of micrometers. The Islam׳s model, based on the non-equilibrium...

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Despite the widespread use of triangular nanochannels for the manipulation and analysis of DNA, studies on the confining effects induced by these nanofluidic structures on the molecules are still absent. Here, we perform coarse-grained Monte Carlo simulations to study the conformations of DNA in nanochannels. The influence of the shape of the...

Thin solid films exposed to ion irradiation exhibit a peculiar evolution that can differ substantially from what is observed for bulk samples. The phenomenology of the patterns that self-organize on the substrate is very rich, with morphologies that display several degrees of order upon the modification of initial film characteristics and...

There is currently a growing interest in control of stretching of DNA inside nanoconfined regions due to the possibility to analyze and manipulate single biomolecules for applications such as DNA mapping and barcoding, which are based on stretching the DNA in a linear fashion. In the present work, we couple Finite Element Methods and Monte...

We propose ion-induced dewetting of Au thin films as a mechanism to modify and control the morphology of Si nanowires formed through metal-assisted chemical etching. We show that the patterns formed upon irradiation resemble those typical of dewetting phenomena, with a characteristic length in the nanometer range. Irradiated Au films are then...

We exploit the fabrication capabilities of the Ultra High Resolution Field Emission Scanning Electron Microscopy (UHR-FE-SEM) and Focused Ion Beam (FIB), model CrossBeam® 1540XB by Zeiss, equipped with EDX, GIS, and STEM modules, in order to mill a silicon master for a first step of a wider project of designing, developing, and producing of...

In the last years, nanopore technology has been increasingly exploited for biomolecule detection andanalysis. Recently, the main focus of the research has moved from the study of nucleic acids to theanalysis of proteins and DNA-protein complexes. In this paper, chemically functionalized solid-statenanopore has been used to recognize Nuclear...