A5011675826- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Gas Sensing Nanomaterials and Sensors
- Porphyrin and Phthalocyanine Chemistry
- Molecular Sensors and Ion Detection
- Analytical Chemistry and Chromatography
- Electrochemical sensors and biosensors
- Surface Chemistry and Catalysis
- ZnO doping and properties
- Olfactory and Sensory Function Studies
- Insect Pheromone Research and Control
- Supramolecular Self-Assembly in Materials
- Fault Detection and Control Systems
- Lipid Membrane Structure and Behavior
- Transition Metal Oxide Nanomaterials
- Supramolecular Chemistry and Complexes
- Conducting polymers and applications
- Advanced biosensing and bioanalysis techniques
- Acoustic Wave Resonator Technologies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- MXene and MAX Phase Materials
- Spectroscopy and Chemometric Analyses
- 2D Materials and Applications
- Luminescence and Fluorescent Materials
University of Rome Tor Vergata
2016-2025
Istituto di Istruzione Superiore I.T.C. Di Vittorio
2019
Hybrid materials based on wide band gap semiconductors and dye molecules are intensively studied for photovoltaic applications. However, these also possess interesting gas sensitivities, besides photonic effects. In this Article, we report the study, under visible light illumination, of porphyrin-functionalized ZnO nanorod photoconductivity changes, modulated by exposure to two volatile organic compounds, ethanol triethylamine, chosen as model analytes. The sensitivity triethylamine exceeds...
Laser-induced graphene (LIG) has emerged as a highly versatile material with significant potential in the development of electrochemical sensors. In this paper, we investigate use LIG and functionalized ZnO porphyrins-ZnO gate electrodes extended field effect transistors (EGFETs). The resultant sensors exhibit remarkable sensitivity selectivity, particularly toward ascorbic acid. intrinsic undergoes notable enhancement through incorporation hybrid organic–inorganic materials. Among...
Recognition of enantiomers is one the most arduous challenges in chemical sensor development. Although several chiral systems exist, their effective exploitation as sensitive layer sensors hampered by practical implications that hinder stereoselective recognition solid state. In this paper, we report a new methodology to efficiently prepare films, using hybrid material approach where porphyrin derivatives are grafted onto zinc oxide nanoparticles. Circular dichroism (CD) evidences...
Enantiorecognition of a chiral analyte usually requires the ability to respond with high specificity one two enantiomers compound. However, in most cases, sensors have chemical sensitivity toward both enantiomers, showing differences only intensity responses. Furthermore, specific receptors are obtained synthetic efforts and limited structural versatility. These facts hinder implementation many potential applications. Here, we utilize presence each receptor introduce novel normalization that...
The development of next-generation optoelectronic devices relies on the necessity for self-powered, fast, and high-sensitivity photodetectors with a wide-spectral response. This Article investigates impact nickel doping growth ZnO nanorods (79–123 nm diameter) p-type silicon substrate, exploring alterations in photovoltaic characteristics compared to pure counterparts. results reveal enhanced performances ranging from 1% 5%, exhibiting superior behavior across tested parameters. Despite...
Recent studies evidence the interplay between photosensitivity and gas sensitivity in porphyrin-functionalized ZnO nanorods. These effects are critically governed by transport phenomena of electronic charge across interfaces organic inorganic structures. Then surface potential is a useful quantity to investigate mutual relationship these two phenomena. For this scope, Kelvin probe measurements porphyrin-ZnO structures were performed dark, under visible light exposed vapors. Results show...
The coupling of semiconductors with organic molecules results in a class sensors whose chemoresistive properties are dictated by the nature dyes. Organic generally reduce conductivity, but case optically active dyes, such as porphyrinoids, conductivity is restored illumination visible light. In this paper, we investigated gas sensing ZnO nanoparticles coated porphyrins and corroles. Under light illumination, resistance these materials increases adsorption volatile compounds decreases when...
The development of chiral receptors for discriminating the configuration analyte interest is increasingly urgent in view monitoring pollution water and waste liquids. Here, we investigate an easy protocol to immobilize desired non-water-soluble inside a water-dispersible nanoplatform made silica. This approach induces chirality makes dye@nanohelix system disperse suspension without aggregation. We noted strong induction amplification chiroptical activity both achiral (proline-based or...
Porphyrinoids are suitable sensitive materials for potentiometric electronic tongues. In this paper, we take advantage of these properties to develop an tongue using extended-gate field-effect transistor as a signal transducer. The films were made different porphyrins and corroles electropolymerized in situ onto laser-induced graphene electrodes. was duly characterized with respect ascorbic acid, common natural antioxidant. sensors shown be selective interferents, such dopamine uric acid....
The increasing global burden of chronic kidney disease (CKD) necessitates the development simple and inexpensive diagnostic tools. Capitalizing on relationship between breath composition CKD, we introduce a disposable array four resistive gas sensors printed low-cost, substrate embedded in internal layers FFP2 facemasks. Sensors are based blends porphyrins─a molecular family often used analysis─and PEDOT/PSS conducting polymer. individual demonstrate remarkable sensitivity to ammonia other...