A5005053668- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Surface Chemistry and Catalysis
- Luminescence and Fluorescent Materials
- Porphyrin and Phthalocyanine Chemistry
- Fullerene Chemistry and Applications
- Graphene research and applications
- Synthesis and Properties of Aromatic Compounds
- Supramolecular Self-Assembly in Materials
- Carbon Nanotubes in Composites
- Crystallography and molecular interactions
- Molecular Junctions and Nanostructures
- Supramolecular Chemistry and Complexes
- Organic Electronics and Photovoltaics
- Photochromic and Fluorescence Chemistry
- Conducting polymers and applications
- Organoboron and organosilicon chemistry
- Covalent Organic Framework Applications
- Surface and Thin Film Phenomena
- Molecular Sensors and Ion Detection
- Advanced Chemical Physics Studies
- Organoselenium and organotellurium chemistry
- Nanoparticle-Based Drug Delivery
- Metal-Organic Frameworks: Synthesis and Applications
- Nanopore and Nanochannel Transport Studies
University of Vienna
2020-2025
Cardiff University
2016-2024
University of Leeds
2023
Chinese Academy of Sciences
2023
Kyoto University
2023
Imperial College London
2023
École Polytechnique Fédérale de Lausanne
2023
City University of Hong Kong
2023
Indian Institute of Technology Kanpur
2023
University of Toronto
2023
Carbon nanotubes are emerging as innovative tools in nanobiotechnology. However, their toxic effects on environment and health have become an issue of strong concern. In the present study, we address impact functionalized carbon (f-CNTs) cells immune system. We prepared two types f-CNTs, following 1,3-dipolar cycloaddition reaction (f-CNTs 1 2) oxidation/amidation treatment 3 4), respectively. found that both f-CNTs uptaken by B T lymphocytes well macrophages vitro, without affecting cell...
Single wall carbon nanotubes (SWNT) and multiwall (MWNT) were linked to thioglycolic acid (TGA)-capped CdTe nanoparticles (NP) through electrostatic interactions producing photoactive superstructures. The novel nanohybrids characterized both in the ground excited states with specific accent on electron-transfer chemistry. In fact, assays provide kinetic spectroscopic evidence that support a partial transfer of charge density, rapid formation microsecond-lived radical ion pair states. Since...
Plenty of room on top: Unprecedented one- and two-dimensional fullerene patterns were obtained upon evaporation pristine C60 onto pre-organized porphyrin monolayers silver surfaces following a bottom-up approach. The arrangement the molecules patterned layer can be controlled by structure (see scanning tunneling microscopy images). Supporting information for this article is available WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z460562_s.html or from author. Please note: publisher...
An unprecedented two-dimensional porphyrin network featuring dynamic pores capable of hosting fullerenes is realized following a bottom-up approach at single-crystal silver surface. Surface- and porphyrin-driven long-range interactions between the C60 guest molecules layer result in formation exceptionally large supramolecular hybrid chains islands (see Figure Cover). Supporting information for this article available on WWW under http://www.wiley-vch.de/contents/jc_2089/2006/c1734_s.html or...
We employed a de novo synthesized porphyrin module to construct one-dimensional (1D) Cu-coordinated polymers on Cu(111) and Ag(111) surfaces. The programmed geometry functionality of the molecular together with its conformational flexibility substrate interaction yields sinuous metal−organic polymeric assemblies, based an unusual two-fold Cu−pyridyl coordination motif. An analysis scanning tunneling microscopy (STM) data reveals occurrence two enantiomers, resulting from surface confinement...
We study the formation of four supramolecular bicomponent networks based on linear modules (linkers) bridging melamine via triple hydrogen-bonds. explore at nanoscale level phenomena polymorphism and phase segregation which rule generation highly crystalline nanoporous patterns self-assembled solid−liquid interface. The investigated linkers include two systems exposing diuracil groups in α ω position, naphthalene tetracarboxylic diimide pyromellitic diimide. In situ scanning tunneling...
Abstract The high‐yielding synthesis of 2‐substituted benzo‐1,3‐tellurazoles and benzo‐1,3‐selenazoles through a dehydrative cyclization reaction has been reported, giving access to large variety benzo‐1,3‐chalcogenazoles. Exceptionally, these aromatic heterocycles proved be very stable thus handy form controlled solid‐state organizations in which wire‐like polymeric structures are formed secondary N⋅⋅⋅Y bonding interactions (SBIs) engaging the chalcogen (Y=Se or Te) nitrogen atoms. In...
Gray-to-colorless electrochromic device based on a new red polymer and Prussian blue electrodes, exhibiting excellent color coordinates transmittance modulation (colored: */ b * = −5.3/−4.7, 30%; bleached: −3.2/−0.5; 63%).
Up to fifteen electrons are reversibly accommodated in a triply fused porphyrin dimer conjugated two [60]fullerene moieties. Its photophysical properties differ completely from those of the many known porphyrin–fullerene dyads: Photoexcitation C60 moieties results quantitative sensitization low-lying (about 1 eV) and very short lived lowest singlet level sheet (see scheme). The expansion functionalization π-conjugated molecular architectures enhance optoelectronic resulting chromophores is...
Spinning tops: A supramolecular rotary device, reminiscent of a mechanical switch, was engineered by bottom-up approach. Self-assembly functionalized porphyrin molecule leads to the formation porous network that features chiral cavities. These serve as hosts for molecular guests, which can be induced rotate either thermally or using scanning tunneling microscopy tip (see images).
Abstract Recent achievements in our laboratory toward the “bottom‐up” fabrication of addressable multicomponent molecular entities obtained by self‐assembly C 60 and porphyrins on Ag(100) Ag(111) surfaces are described. Scanning tunneling microscopy (STM) studies ad‐layers constituting monomeric triply linked porphyrin modules showed that molecules self‐organize into ordered supramolecular assemblies, ordering which is controlled chemical structure, metal substrate, surface coverage....
Discrete and multicomponent nanoscale noncovalent assemblies on surfaces featuring polygonal porous domains are presented. The molecular engineering concept involves multivalent modules that preprogrammed to undergo heteromolecular recognition by exploiting complementary multiple H bonds. Two types of have been engineered: (i) a linear unit twofold symmetry exposing two 2,6-di(acylamino)pyridyl [donor−acceptor−donor (DAD)] sites at its extremities with 180° orientation relative each other...
We employed de novo synthesized porphyrin modules to construct discrete cyclic supramolecular architectures supported on a copper surface. The programmed geometry and functionality of the molecular together with their conformational flexibility substrate interaction yields symmetric assemblies, including dimers chains as well three- six-membered structures. area cavities is extended by creating bicomponent structures combining building blocks different symmetry.
In this feature article we describe the past and recent developments in organic synthesis functionalisation of borazine, isostructural inorganic analogue benzene.
Antibody‐labeled gold nanoparticles represent a promising novel tool regarding cancer imaging and therapy. Nevertheless, the characterization of biodistribution such immunonanocarriers has been poorly documented. In this study, 89 Zr‐labeled cetuximab before after coupling reaction to (AuNPs) was compared quantitative performance Zr immuno‐PET evaluated. Cetuximab functionalized with desferal moiety labeled ( Zr–Df–Bz–NCS–cetuximab). AuNPs mean diameter 5 nm were synthesized according new...
Abstract The first rational synthesis of a BN‐doped coronene derivative in which the central benzene ring has been replaced by borazine core is described. This includes six C−C ring‐closure steps that, through intramolecular Friedel–Crafts‐type reactions, allow stepwise planarization hexaarylborazine precursor. UV/Vis absorption, emission, and electrochemical investigations show that introduction BN induces dramatic widening HOMO–LUMO gap an enhancement blue‐shifted emissive properties with...
The development of new modalities and protocols is major interest to improve the outcome cancer treatment. Given appealing physical properties protons emerging evidence biological relevance use gold nanoparticles (GNPs), radiosensitization effects GNPs (5 or 10 nm) have been investigated in vitro combination with a proton beam different linear energy transfer (LET). After incubation for 24 h, were observed cytoplasm A431 cells exposed nm GNPs, as well nucleus 5 GNPs. Cell uptake 0.05 mg ml-1...
In this work, we have programmed and synthesized a recognition motif constructed around chalcogenazolo-pyridine scaffold (CGP) that, through the formation of frontal double chalcogen-bonding interactions, associates into dimeric EX-type complexes. The reliability interaction has been shown at solid-state by X-ray analysis, depicting strongest persistence for Te-congener. high fidelity, chemical thermal stability easy derivatization 2-position makes CGP convenient constructing supramolecular...