A5013456284- Carbon Nanotubes in Composites
- Graphene and Nanomaterials Applications
- Carbon and Quantum Dots Applications
- Graphene research and applications
- Photoreceptor and optogenetics research
- Photochromic and Fluorescence Chemistry
- Fullerene Chemistry and Applications
- Nanoparticles: synthesis and applications
- Molecular Sensors and Ion Detection
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Porphyrin and Phthalocyanine Chemistry
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- Advanced biosensing and bioanalysis techniques
- Nanoplatforms for cancer theranostics
- Nanotechnology research and applications
- Molecular Junctions and Nanostructures
- Nanopore and Nanochannel Transport Studies
- Nanoparticle-Based Drug Delivery
- Mechanical and Optical Resonators
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Nanocluster Synthesis and Applications
- Supramolecular Self-Assembly in Materials
Dublin City University
2018-2025
Sapienza University of Rome
2025
Italian Institute of Technology
2014-2021
Center for Sustainable Future Technologies
2018-2021
University of Turin
2013-2020
Daegu Cyber University
2020
Nano Carbon (Poland)
2014-2019
University of Genoa
2017
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
2014-2015
University College Dublin
2015
Spontaneous exfoliation of single-walled carbon nanotubes on dilution dispersions in a common solvent, N-methyl-pyrrolidone, is demonstrated. The free-energy mixing negative, confirming athermal solubility. Scanning tunneling microscopy measurements show physisorption the solvent to nanotube (see figure). Experiments, supported by simple model, that successful solvents for are those with surface tensions close graphite.
Large-scale debundling of single-walled nanotubes has been demonstrated by dilution nanotube dispersions in the solvent N-methyl-2-pyrrolidone (NMP). At high concentrations some very large (∼100s micrometers) aggregates exist that can be removed mild centrifugation. By measurement absorbance before and after centrifugation as a function concentration relative aggregate dispersed monitored. No are observed below CNT ≈ 0.02 mg/mL, suggesting this considered dispersion limit NMP. After...
Abstract Cancer, responsible for approximately 10 million lives annually, urgently requires innovative treatments, as well solutions to mitigate the limitations of traditional chemotherapy, such long‐term adverse side effects and multidrug resistance. This review focuses on Carbon Dots (CDs), an emergent class nanoparticles (NPs) with remarkable physicochemical biological properties, their burgeoning applications in bioimaging nanocarriers drug delivery systems cancer treatment. The...
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationSignal Processing at the Molecular LevelFrançisco M. Raymo and Silvia GiordaniView Author Information Center for Supramolecular Science Department of Chemistry, University Miami 1301 Memorial Drive, Coral Gables Florida 33146-0431 Cite this: J. Am. Chem. Soc. 2001, 123, 19, 4651–4652Publication Date (Web):April 24, 2001Publication History Received16 October 2000Revised6 February 2001Published online24 April inissue 1 May...
Certain molecular switches respond to input stimulations producing detectable outputs. The interplay of these signals can be exploited reproduce basic logic operations at the level. transition from simple gates complex digital circuits requires design chemical systems able process multiple inputs and We have identified a three-state switch that responds one two optical encoded binary digits in its outputs applying positive conventions demonstrated this system converts three-digit strings...
A gradual transition from electrical to optical networks is accompanying the rapid progress of telecommunication technology. The urge for enhanced transmission capacity and speed dictating this trend. In fact, large volumes data encoded on signals can be transported rapidly over long distances. Their propagation along specific routes across a communication network ensured by combination fibers optoelectronic switches. It becoming apparent, however, that interplay between routing stimulations...
We have identified a strategy to communicate chemical signal between two independent molecular components. One of them is photoactive merocyanine that switches spiropyran, releasing proton, when stimulated with visible light. The other 4,4'-pyridylpyridinium monocation captures the released producing an electroactive 4,4'-bipyridinium dication. Under irradiation conditions employed, photoinduced transformation requires ca. 15 min reach photostationary state. In dark, ensemble communicating...
Abstract The inflammatory effects of carbon nanoparticles (NPs) are highly disputed. Here it is demonstrated that endotoxin‐free preparations raw nanotubes (CNTs) very limited in their capacity to promote responses vitro, as well vivo. Upon purification and selective oxidation CNTs, a higher dispersibility achieved physiological solutions, but this process also enhances activity. In synergy with toll‐like receptor (TLR) ligands, CNTs NLRP3 inflammasome activation shown for the first time...
In present telecommunication networks, information transfer relies on the interplay of optical and electrical signals. Data are communicated optically but processed electronically. Methods to maintain propagating signals solely at level must be developed overcome transmission capacities speed limits imposed by electronic components. We have demonstrated that molecular switches can used gate in response realized a simple network consisting three light sources, one cell containing solution...
We report a new approach that uses microwaves to rapidly functionalize carbon nanotubes by using 1,3-dipolar cycloaddition of aziridines, well-known precursors azomethine ylides, in solvent-free conditions. The efficiency our microwave-mediated protocol is confirmed comparison similar classical conditions for the ylides DMF. Under these latter conditions, reaction proceeds 5 days (against 1 h under microwave irradiation), and functionalization degree much lower, as thermogravimetric analysis...
A novel versatile approach for the functionalization of multilayer fullerenes (carbon nano-onions) has been developed, which involves facile introduction a variety simple functionalities onto their surface by treatment with in situ generated diazonium compounds. This is complemented use "click" chemistry was used covalent more complex porphyrin molecules.
Abstract Functionalized carbon nano-onions (f-CNOs) are of great interest as platforms for imaging, diagnostic and therapeutic applications due to their high cellular uptake low cytotoxicity. To date, the toxicological effects f-CNOs on vertebrates have not been reported. In this study, possible biological impact zebrafish during development is investigated, evaluating different toxicity end-points such survival rate, hatching heart beat rate. Furthermore, a bio-distribution study boron...
Abstract Carbon‐based nanomaterials have attracted much interest during the last decade for biomedical applications. Multimodal imaging probes based on carbon nano‐onions (CNOs) emerged as a platform bioimaging because of their cell‐penetration properties and minimal systemic toxicity. Here, we describe covalent functionalization CNOs with fluorescein folic acid moieties both targeting cancer cells. The modified display high brightness photostability in aqueous solutions selective rapid...