Browsing by Author "GIORDANI, SILVIA"
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Attracting Talented Researchers to Ireland: A review of The European Marie Curie Programme
GIORDANI, SILVIA (IUA, 2007)The purpose of this publication is to illustrate how researchers in academia and industry in Ireland have successfully secured funding from Europe in the Marie Curie Programme and to highlight the impact this has had in ... -
The balance between closed and open forms of spiropyrans in the solid state
GIORDANI, SILVIA; NATALI, MANUEL (2010)We present three new crystal structures of members from the photochromic spiropyran family, including a rare example of an open (merocyanine) form. The molecular structures are systematically compared with existing ... -
Conjugated Quantum Dots Inhibit the Amyloid β (1-42) Fibrillation Process
GIORDANI, SILVIA; ZHANG, HONGZHOU; MOVIA, DANIA (2011)Nanoparticles have enormous potential in diagnostic and therapeutic studies. We have demonstarted that the amyloid beta mixed with and conjugated to dihydrolipoic acid (DHLA)-capped CdSe/ZnS quantum dots (QDs) of size ... -
Controlled carboxylic acid introduction: a route to highly purified oxidized single walled carbon nanotubes
GIORDANI, SILVIA; KOPF, ILONA (2011)A chemical treatment for preparing high purity selectively oxidised SWNTs while preserving optical/ electronic properties of the material has been developed. Efficient removal of both metal and carbonaceous impurities ... -
Determination of spiropyran cytotoxicity by high content screening and analysis for safe application in bionanosensing
GIORDANI, SILVIA; MOVIA, DANIA; VOLKOV, YURI; PRINA MELLO, ADRIELE (2010)The in vitro toxic response of spiropyrans in cellular models has not been previously addressed, despite the fact that such photoswitchable molecules have shown great potential as versatile and tunable components for ... -
Effect of carbon nanotube surface modification on dispersion and structural properties of electrospun fibers
GIORDANI, SILVIA (2009)Covalent surface modification of multiwall carbon nanotubes leads to enhanced nanotube dispersion in the polymer. Despite this, the mechanical properties of electrospun fibers made of polymethylmethacrylate containing ... -
Effect of solvent and dispersant on the bundle dissociation of single-walled carbon nanotube
COLEMAN, JONATHAN; BLAU, WERNER; GIORDANI, SILVIA; DRURY, ANNA (2005)Single-wall carbon nanotubes (SWCNT) are severely restricted in their applications, as they exist in rope-like bundles. Recently, J. Coleman et al. demonstrated a spectroscopic method to monitor bundle dissociation in low ... -
Functionalization of Single Walled Carbon Nanotubes with Optically Switchable Spiropyrans
PEROVA, TANIA; GIORDANI, SILVIA; DEL CANTO, ELISA; FLAVIN, KEVIN; NATALI, MANUEL (2010)The design, synthesis and complete characterization of a smart material composed of single-walled nanotubes functionalized with spiropyran-based photo switchable molecules are reported. The chemical complexity of the system ... -
Interaction studies between photochromic spiropyrans and transition metal cations: the curious case of copper.
GIORDANI, SILVIA (2012)A series of four spiropyrans bearing different substituents on the indolic nitrogen were synthesized and their capability of binding mono and bivalent transition metal cations in solution was assessed via UV-visible ... -
Molecular Engineering of Nonplanar Porphyrin and Carbon Nanotube Assemblies- a Linear and Nonlinear Spectroscopic and Modeling Study
GIORDANI, SILVIA; SENGE, MATHIAS; RICKARD, DAVID; BLAU, WERNER (2011)The importance of molecular conformation to the nature and strength of noncovalent interactions existing between a series of increasingly nonplanar tetraphenylporphyrin (TPP) derivatives and carbon nanotubes was systematically ... -
Molecular switches as photocontrollable "smart" receptors
GIORDANI, SILVIA (2012)This critical review focuses on the development of photochromic compounds as sensors for cations, anions, and biologically important molecules. The review commences with a brief description of photochromism and the ... -
Organic Functionalisation and Characterisation of Single-walled Carbon Nanotubes
GIORDANI, SILVIA (2009)Since carbon nanotubes (CNTs) display unique structures and remarkable physical properties, a variety of applications have emerged in both materials and life sciences. In terms of applications, the functionalisation of ... -
Photo-controlled Uptake and Release of Zinc Metal Ions by Spiropyran receptors anchored to Single-Walled Carbon Nanotubes
GIORDANI, SILVIA; MOVIA, DANIA (2012)Light controllable release of antinflammatory zinc ions by a smart multifunctional material composed of spiropyrans and single walled carbon nanotubes (SWNTs) is demonstrated. The exploitation of a number of complementary ... -
Photochemically Triggered Alkylthiol Reactions on Highly Ordered Pyrolytic Graphite
COLAVITA, PAULA; GIORDANI, SILVIA (2011)The surface of highly ordered pyrolytic graphite (HOPG) has been modified using a new photochemically induced grafting reaction. Thiols have been revealed to behave as privileged substrates for this efficient grafting ... -
A photoswitchable Zn (II) selective spiropyran-based sensor
SOLDI, LAURA; GIORDANI, SILVIA; NATALI, MANUEL (2010)A spiropyran-based fluorescent and photoregenerable receptor that is selective towards zinc(II) ions over a series of biologically and environmentally relevant cations has been designed and synthesized. The complex formation ... -
Sonication of porphyrin-nanotube composites: a cautionary tale
GIORDANI, SILVIA; BLAU, WERNER (2007)We report the spectroscopic changes of tetraphenylporphyrin carbon nanotube composites in a variety of chlorinated solvents such as chloroform, dichloroethane and dichlorobenzene as a result of sonication. Detailed data ... -
Spectroscopic changes induced by sonication of porphyrin-carbon nanotube composites in chlorinated solvents
GIORDANI, SILVIA; BLAU, WERNER (2007)We report the spectroscopic changes of tetraphenylporphyrin carbon nanotube composites in a variety of chlorinated solvents such as chloroform, dichloroethane and dichlorobenzene as a result of sonication. Detailed data ... -
Spectroscopy of Single-Walled Carbon Nanotubes in Aqueous Surfactant Dispersion
MOVIA, DANIA; GIORDANI, SILVIA (2009)Optical studies of single-walled carbon nanotubes (SWNTs) dispersed in aqueous surfactant suspensions have made significant progress since the discovery of their bright band-gap fluorescence in the near-infrared region ... -
Structural Modifications of Ionic Liquid Surfactants for improving the Capability to Disperse Single-Walled Carbon Nanotubes in Water: an Experimental and Theoretical Study
GIORDANI, SILVIA; DEL CANTO, ELISA (2011)The 1-hexadecyl-3-vinylimidazolium bromide (hvimBr), a water-soluble long-chain imidazolium ionic liquid (IL) with surfactant properties, showed the ability to produce stable homogeneous aqueous dispersions of pristine ... -
Structural, spectroscopic and anion binding properties of 5,10-porphodimethenes, an unusual class of calixphyrins
GIORDANI, SILVIA; SENGE, MATHIAS (2010)Complete spectroscopic, structural and anion binding properties are reported for a special class of calixphyrins, namely 5,10-disubstituted porphodimethenes (PDMs). The crystal structure clearly shows that PDMs exhibit ...