Bottom-up Nanofabrication by Lasers and Scanning Probes
The idea that bottom up nanofabrication can be achieved by the joint use of nanometrically controlled sharp tips and electromagnetic radiation. If we think of an irradiated STM tip as an electromagnetic antenna operating at optical rather than radio frequencies, we can understand how, in the vicinity of its highly curved apex,…
Laser assisted fabrication of biomolecular sensing microarrays
The Pulsed Laser Deposition technique is used in these experiments in conjunction with micro and nanopatterning techniques to produce very high density arrays of localized active biomolecular layers. Such patterned layers of homogeneous or heterogeneous biomolecules are particularly interesting for the accomplishment of high density biosensing arrays.
3D Polymeric Scaffolds For Soft Tissue Engineering
Tissue engineering emerged in the early 1990s to address limitations of organ transplantation and synthetic tissue replacements, focusing on coupling cells and a biocompatible matrix known as a scaffold [1]. Since then, some clinical success has been obtained for hard tissues, such as bones and cartilages [2], and for bidimensional soft tissue, such as…
Nanocomposites Electrolytes for Intermediate Temperature Polymer Electrolyte Fuel Cells
Among the possible systems investigated for energy production with low environmental impact, fuel cells are very promising as electrochemical power sources both for stationary energy production and application in portable technology and electric vehicles. Polymeric electrolyte membrane fuel cells (PEMFCs) are the most promising candidates for the latter application.
Wetting Layer erosion during formation of InAs/GaAs(001) Quantum Dots
One of the puzzling aspects of the self-assembled QDs is that the nucleated 3D volume is far larger than that being deposited in the narrow coverage range where the entire nucleation process is completed. Resercher from NAST Centre have studied a peculiar feature, recently discovered [1], at the origin of this phenomenon, which is associated with mature 3D QDs,…
Ultra-high dense growth of germanium nanodots on SiO2 thin films
The use of self-organization phenomena at semiconducting surfaces allows fabricating quantum dot structures for producing novel nanodevices with unprecedented applications not only in optoelectronics, but also for room temperature operating single electron transistors and/or resonant tunneling structures. Fabrication of ultra-dense Ge dots on silicon surfaces still presents a series of problems far …
Nanoengineered silica nanoparticles as intracellular nanoprobes
Nanotechnology is the science of manipulating matter at the atomic and molecular level to obtain materials with specifically enhanced chemical and physical properties. Collaborative research among scientists from Italy – the Nast Centre for Nanoscience Nanotechnology and Innovative Instrumentation, are working in the emerging challanging field of nanomedicine…
Mean Kinetic Energy in Helium mixtures and nanoporous confinement
Collaborative research among scientists from Italy – the Nast Centre for Nanoscience Nanotechnology and Innovative Instrumentation, UK – ISIS Spallation Neutron Source – have studied the single particle microscopic dynamics of helium atoms (3He, 4He) in bulk and confined in silica nanopores, using Deep Inelastic Neutron Scattering (DINS) at the ISIS…
Sub-Femtoseconds proton dynamics in confined geometry and near proteins
Collaborative research among scientists from Italy – the Nast Centre for Nanoscience Nanotechnology and Innovative Instrumentation, UK – ISIS Spallation Neutron Source – and US, – University of Huston – have used Deep Inelastic Neutron Scattering (DINS) to shows how the proton momentum distribution in liquid water monitors the changing occurring …
New neutron facility for fast neutron irradiation tests of electronics
Collaborative research among Italian and British scientists and engineers from Nast Centre for Nanoscience Nanotechnology and Innovative Instrumentation, CNR (I), ISIS Spallation neutron Source (UK), Universities of Central Lancashire, Padova and Milano Bicocca, and from the avionics and aerospace industries have been using VESUVIO neutron flux…