Seminario

Italiano

Hybrid Nanostructured Materials for Advanced Biomedical Applications

Non definito

Nanotechnology has enabled unprecedented control of the interactions between materials and biological
entities, from the microscale down to the molecular level. For example, nanosurfaces and nanostructures
have been used to mimic or interact with biological microenvironments, to support specific biological
functions such as cell adhesion, mobility and differentiation, as well as tissue healing.
Recently, a new paradigm has been proposed for nanomedicine to exploit the intrinsic properties of

Metal-matrix and ceramic composites: from preparation and consolidation to properties

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In this seminar, metal-matrix (tungsten-based) and ceramic (strontium ferrite-based) composites will be presented. Tungsten-based composites, which will be presented, are candidates for the DEMO divertor. DEMO is a next generation of fusion reactors, which will also be a demonstrational fusion power plant and the divertor is part of the reactor chamber, which has to withstand the highest thermal loads. On the other hand, strontium ferrite-based composites are part of the quest to replace rare-earth magnets in applications, which do not require such high energy products (BHmax).

2D X-ray detector developments and applications at ESRF

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The ESRF Detector Unit has a long experience in the development of X-ray detectors for a wide range of synchrotron applications. After a brief introduction of the ESRF, this talk will present examples of in-house designed 2D detector systems and their applications on beamlines, with some insights into the underlying technologies.

Resistive switching memory in Nano particle incorporated polymer & bio-degradable films

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Resistive switching in nano particle incorporated polymer and bio degradable films is now a fast growing field as it has memory applications. Further the conduction mechanisms involved that lead to switching are of great interest.

Giving a brief summary of the status of different emerging memory sytems, I shall describe our work and recent results on resistive switching in :

1. PMMA-Al doped ZnO nano particles,

2. PVA-reduced graphene oxide

3. Gelatin-Graphene Oxide,

4. Gelatin-CdTe quantum dots and

5. Gelatin-Silver nano particles.

Low Field Microwave Absorption and Novel Magnetism*

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Low field microwave absorption (LFMA) was first observed in Cuprate high-Tc Superconductors. Later LFMA was reported in half metallic manganites, then followed by some magnetic materials. The fact that LFMA is not observable in every magnetic material makes this phenomenon intriguing. Examples for LFMA in ZnO system arre given, then LFMA in multiferroic BiFO3 sytem is described. We then show our preliminary results from BiFe0.5Mn0.5O3 system from Parma.

The remaining part of my talk is about a brief description of  other activities of my group at UNISA:

Synthesis and characterization of inorganic anisotropic nanoparticles

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Nanoparticles with an anisotropic shape have shown great potential in innovative applications. For example, when magnetic anisotropic nanoparticles are subjected in a magnetic field, they will align with the field, resulting in a torque (τm = m x H), that can be transferred to the surrounding. Therefore, the effect is interesting for new magnetically responsive application such as magneto-optics and magneto-viscous fluids.

Hybrid Material and Device Platforms fo r Reconfigurable Integr ated Nanophotonics

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The development of ultra-compact integrated nanophotonic structures for communications, sensing, and signal processing has been of great interest lately. Recent progress in the development of miniaturized high-Q microresonators has resulted in orders of magnitude reduction in the size of functional integrated photonic structures. The possibility of low-power tuning of the resonance features in these structures has made the formation of reconfigurable photonic structures possible.

Design and Fabrication of Microchamber Arrays for Drug Encapsulation and Controlled Release

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Controlled drug delivery and gene expression is required for a large variety of applications including cancer therapy, wound healing, cell migration, cell modification, cell-analysis, reproductive and regenerative medicine. Specially, the development of external stimuli responsive micro/nano-containers, possessing novel functionalities is attracting increasing research interest due to their ability to encapsulate and release active components, cells, particles and due to their potential applications in drug delivery.

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