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Bibliografia
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Keywords
INTERFACES, ORGANIC MATERIALS, BIOMATERIALS, THIN FILMS, SELF-ASSEMBLY, THIOLS, PATTERNING, AFM, SYNCHROTRON RADIATION TECHNIQUES

Structural, Morphological and Electronic Properties of Organic-Organic Interfaces and water-induced modifications.

Scuola Internazionale Superiore di Studi Avanzati di Trieste
Abstract
One of the most important challenges and opportunities faced by material scientists in the recent years is understanding the properties of matter at the nanoscale and use the improved understanding for the design and making of novel materials and devices. The reduced size allows in fact nanoscale materials to exhibit novel and/or significantly improved physical, chemical, and biological properties. The controlled fabrication and integration of nanomaterials and nanodevices is likely to be revolutionary but difficult for both scientific and technological applications the main challenge being the preparation of large quantities of bulk materials starting from the bottom up. Quite clearly to solve this problem a hierarchical approach is necessary. This is why it is wise to start, as proposed here, by researching and implementing nanotechnology in small systems and devices to push forward , for instance, the state of the art of the sensitivity of biosensors as, in this application (as in many other similar ones) small quantitities of nanostructured materials can have appreciable practical consequences.

Most of the foreseeable applications of the new technology, which include organic (and flexible) electronic and optoelectronic devices, solar cells, biosensors, arrays for DNA sensing and proteomics, require the growth and immobilization of organic and bio-structures at the surface of organic or inorganic substrates. We believe that for such an approach to be proven >>>

Principal Investigator
Giacinto Scoles Scuola Internazionale Superiore di Studi Avanzati di TRIESTE
Research Objectives
In the last few years tremendous progress has been made in the field of molecular manipulation and handling. This has, in turn, the potential of strongly impacting the study of biological and medical problems. Applications to the preparation of biomaterials and the fabrication of biosensors and hybrid bioelectronic devices depend strongly on the ability to organize the functional elements at the nanoscale. Such applications rely strongly on the knowledge of the properties of films of biomolecules immobilized via (more or less guided) self-assembly on surfaces of both inorganic and organic materials. One of the reasons for the success of such approach rests therefore on the ability to guide and characterize the growth of nanostructures by means of a multitude of different structural, morphological and electronic techniques.

In the present research proposal we aim at addressing fundamental chemical, physical and biological issues of one of the most important tools of modern surface biology (i.e. self-assembled monolayers or SAMs) by using a wide portfolio of experimental methods closely correlated with advanced theoretical methods. In particular, we will aim at determining structural and electronic properties of thin films of organic or bio-molecules deposited onto self-assembled monolayers (SAMs) and/or nanostructured SAMs, grown on inorganic substrates.

SAMs of alkane thiols or of thiol-modified molecules provide in fact a soft intermediate >>>

Timescale
24 months
National and international background
One of the most important challenges and opportunities faced by physicists and, more generally, by material scientists in the recent years is understanding properties of matter at the nanoscale and use the improved understanding for the design and making of novel materials and devices. The reduced size allows in fact materials, designed from atomic or molecular scale, to exhibit novel and significantly improved physical, chemical, and biological properties. Since all natural materials and systems establish their foundation at nanoscale, controlling matter at the atomic, molecular or supramolecular level means tailoring the fundamental properties, phenomena, and processes exactly at the scale where the basic properties are initiated.

Designed and controlled fabrication and integration of nanomaterials and nanodevices is likely to be revolutionary but difficult for both science and technology the main challenge being the preparation of large quantities of bulk materials starting from the bottom up. This is why it is wise to start by researching and implementing nanotechnology in small systems and devices to push forward , for instance, the state of the art of sensor sensitivity or that of catalytic materials as, in both applications small quantitities of nanostructured materials can have appreciable macroscopic consequences. Alignment of linear molecules in an ordered array on a substrate surface can function as a new generation of chemical and biological >>>