A5032320481- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Chromatography
- Olfactory and Sensory Function Studies
- Electrochemical sensors and biosensors
- Porphyrin and Phthalocyanine Chemistry
- Conducting polymers and applications
- Insect Pheromone Research and Control
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical Analysis and Applications
- Biosensors and Analytical Detection
- Acoustic Wave Resonator Technologies
- ZnO doping and properties
- Molecular Sensors and Ion Detection
- Biochemical Analysis and Sensing Techniques
- Inflammatory mediators and NSAID effects
- Air Quality Monitoring and Forecasting
- RFID technology advancements
- Advanced biosensing and bioanalysis techniques
- Marine animal studies overview
- Polydiacetylene-based materials and applications
- Fermentation and Sensory Analysis
- Molecular Communication and Nanonetworks
- Neurobiology and Insect Physiology Research
University of Rome Tor Vergata
2016-2025
Instituto Politécnico Nacional
2012
Passive ultra high-frequency radio frequency identification tags, besides item labeling, are also able to exploit capability sense the physical state of tagged object as well surrounding environment. Here, a new family polymer-doped tags proposed and fully characterized for detection ambient humidity. A sensitive chemical species based on PEDOT:PSS is used load shaped slot, carved into folded-like patch tag. The communication sensing capabilities resulting radio-sensor investigated by means...
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...
Cancer cells and non-cancer differ in their metabolism they emit distinct volatile compound profiles, allowing to recognise cancer by scent. Insect odorant receptors are excellent chemosensors with high sensitivity a broad receptive range unmatched current gas sensors. We thus investigated the potential of utilising fruit fly's olfactory system detect cells. Using vivo calcium imaging, we recorded an array receptor neurons on antenna. performed multidimensional analysis antenna responses,...
Abstract The efficacy of breath volatile organic compounds (VOCs) analysis for the screening patients bearing breast cancer lesions has been demonstrated by using gas chromatography and artificial olfactory systems. On other hand, in-vitro studies suggest that VOCs detection could also give important indications regarding molecular tumorigenic characteristics tumor cells. Aim this study was to analyze in headspace cell lines order ascertain potentiality signatures giving information about...
Abstract Currently, in clinical practice there is a pressing need for potential biomarkers that can identify lung cancer at early stage before becoming symptomatic or detectable by conventional means. Several researchers have independently pointed out the volatile organic compounds (VOCs) profile be considered as fingerprint useful diagnosis. In particular, 16% of volatiles contributing to human volatilome are found urine, which therefore an ideal sample medium. Its analysis through...
Tuberculosis (TB) is among the more frequent causes of death in many countries. For pulmonary TB, early diagnosis greatly increases efficiency therapies. Although highly sensitive tests based on nucleic acid amplification (NAATs) and loop-mediated isothermal (TB-LAMP) are available, smear microscopy still most widespread diagnostics method low–middle-income countries, true positive rate lower than 65%. Thus, there a need to increase performance low-cost diagnosis. years, use sensors analyze...
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...
The design of wireless sensor nodes for animal tracking is a multidisciplinary activity that presents several research challenges both from technical and biological point view. A monitoring device has to be designed accounting all system requirements including the specific characteristics animals environment. In this work we present some aspects node track monitor pink iguana Galápagos: recently discovered species living in remote locations at Galápagos Islands. few individuals live...
Recurrence and metastasis are the primary causes of mortality in patients with colorectal cancer (CRC), therefore effective tools to reduce morbidity CRC necessary. LOX-1, ox-LDL receptor, is strongly involved inflammation, obesity, atherosclerosis, several studies have assessed its role carcinogenesis process linking ROS, metabolic disorders cancer. We already demonstrated vitro that LOX-1 expression correlates aggressiveness human colon downregulation weakens tumoral phenotype, indicating...
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...
Passive UHF RFID tags, beside item labelling, are also able to exploit capability of sensing the physical state tagged object as well surrounding environment. Here a family polymer-doped tags proposed and fully characterized for detection ambient humidity. A sensitive chemical species based on PEDOT:PSS is used dope properly shaped slot carved into folded-like patch tag. The communication capabilities radio-sensor investigated by means simulation measurements showing how control balance...
Abstract Perovskite solar cells (PSCs) represent nowadays a promising starting point to develop new efficient and low‐cost photovoltaic technology due the demonstrated power conversion efficiency (PCE) exceeding 25% on small area devices. However, best reported devices suffer from stability issue under real working conditions thus slowing down race for commercialization. In particular, hole transporting material commonly employed in mesoscopic n–i–p PSCs (nip‐mPSCs), namely spiro‐OMeTAD, is...
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...
Battery-less ultrahigh frequency (UHF) radio identification (RFID) tags coated by proper sensitive layers have been recently demonstrated capable to play as low-cost sensors of some volatile compounds. The issue cross-sensitivity and the possibility develop an array differently are, however, still completely open. This paper investigates, through experimental campaign involving a general-purpose sensor-antenna transducer, potentiality functionalized in UHF RFID band sense multiplicity...