Supramolecular architectures can be built-up from a single molecular component (building
block) to obtain a complex of organic or inorganic interactions creating a new emergent
condensed phase of matter, such as gels, liquid crystals and solid crystal. Further the
generation of multicomponent supramolecular hybrid architecture, a mix of organic and
inorganic components, increases the complexity of the condensed aggregate with functional
properties useful for important areas of research, like material science, medicine and
nanotechnology.
One may design a molecule storing a recognition pattern and programming a informed
self-organization process enables to grow-up into a hierarchical architecture. From a
molecular level to a supramolecular level, in a bottom-up fashion, it is possible to create a
new emergent structure-function, where the system, as a whole, is open to its own
environment to exchange energy, matter and information. “The emergent property of the
whole assembly is superior to the sum of a singles parts”.
In this thesis I present new architectures and functional materials built through the selfassembly
of guanosine, in the absence or in the presence of a cation, in solution and on the
surface.
By appropriate manipulation of intermolecular non-covalent interactions the spatial
(structural) and temporal (dynamic) features of these supramolecular architectures are
controlled.
Guanosine G7 (5',3'-di-decanoil-deoxi-guanosine) is able to interconvert reversibly
between a supramolecular polymer and a discrete octameric species by dynamic cation
binding and release.
Guanosine G16 (2',3'-O-Isopropylidene-5'-O-decylguanosine) shows selectivity binding
from a mix of different cation's nature.
Remarkably, reversibility, selectivity, adaptability and serendipity are mutual features to
appreciate the creativity of a molecular self-organization complex system into a multilevelscale
hierarchical growth.
The creativity - in general sense, the creation of a new thing, a new thinking, a new
functionality or a new structure - emerges from a contamination process of different
disciplines such as biology, chemistry, physics, architecture, design, philosophy and science
of complexity.
| Identifer | oai:union.ndltd.org:unibo.it/oai:amsdottorato.cib.unibo.it:1068 |
| Date | 30 May 2008 |
| Creators | Pandoli, Omar <1977> |
| Contributors | Spada, Gian Piero |
| Publisher | Alma Mater Studiorum - Università di Bologna |
| Source Sets | Università di Bologna |
| Language | English |
| Detected Language | English |
| Type | Doctoral Thesis, PeerReviewed |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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