G. Leo

ORCID: 0000-0001-8871-7556
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Quantum Dots Synthesis And Properties
  • Semiconductor Quantum Structures and Devices
  • Chalcogenide Semiconductor Thin Films
  • Advanced Semiconductor Detectors and Materials
  • Gas Sensing Nanomaterials and Sensors
  • Analytical Chemistry and Sensors
  • Ion-surface interactions and analysis
  • Semiconductor materials and interfaces
  • Electrochemical sensors and biosensors
  • Semiconductor materials and devices
  • Nanowire Synthesis and Applications
  • Conducting polymers and applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • ZnO doping and properties
  • GaN-based semiconductor devices and materials
  • Perovskite Materials and Applications
  • Copper-based nanomaterials and applications
  • nanoparticles nucleation surface interactions
  • Integrated Circuits and Semiconductor Failure Analysis
  • Enzyme-mediated dye degradation
  • Advanced Chemical Sensor Technologies
  • Magnetic Properties and Synthesis of Ferrites
  • Biofuel production and bioconversion
  • Photoreceptor and optogenetics research
  • Protein purification and stability

Azienda Ospedaliero-Universitaria di Modena
2024

University of Bari Aldo Moro
1989-2024

Institute of Nanostructured Materials
2002-2023

Vita-Salute San Raffaele University
2023

National Research Council
2022

Merck (Germany)
2021-2022

University of Naples Federico II
2009-2016

Institute of Organic Chemistry
2010

National Academies of Sciences, Engineering, and Medicine
2010

Institute of Structure of Matter
2003-2007

We report a novel, non-hydrolytic route to ZnO nanocrystals by means of thermal decomposition zinc acetate (ZnAc2) in alkylamines, the presence tert-butylphosphonic acid (TBPA). The slow heating an alkylamine/TBPA/ZnAc2 mixture is simple, safe, and scalable approach synthesize from handy chemicals. obtained were characterized UV-vis absorption, photoluminescence (PL) infrared (FT-IR) spectroscopies, X-ray diffraction (XRD) transmission electron microscopy (TEM). growth particles nanoscopic...

10.1021/jp027533+ article EN The Journal of Physical Chemistry B 2003-04-24

We have recently reported that in bone the cannabinoid CB1 receptor is present sympathetic terminals. Here we show traumatic brain injury (TBI), which humans enhances peripheral osteogenesis and fracture healing, acutely stimulates formation a distant skeletal site. At this site demonstrate i) high level of main endocannabinoid, 2-arachidonoylglycerol (2-AG), expression diacylglycerol lipases, enzymes essential for 2-AG synthesis; ii) TBI-induced increase preceded by elevation decrease...

10.1096/fj.06-7957com article EN The FASEB Journal 2007-08-17

Proteomic strategies are herein proved to be a complementary approach the well established amino acid composition analysis for characterization of aging and deterioration phenomena occurring proteinaceous materials in works-of-art. Amino analyses on several samples demonstrated that proteins frescoes from Camposanto Monumentale Pisa deteriorated as revealed by decrease Met, Lys, Tyr content presence all malonic result Ser, Phe, Cys oxidation. identified deamidation at Asn Gln further major...

10.1021/ac1027275 article EN Analytical Chemistry 2011-02-24

The Multi-Attribute Method (MAM) Consortium was initially formed as a venue to harmonize best practices, share experiences, and generate innovative methodologies facilitate widespread integration of the MAM platform, which is an emerging ultra-high-performance liquid chromatography–mass spectrometry application. Successful implementation purity-indicating assay requires new peak detection (NPD) potential process- and/or product-related impurities. NPD interlaboratory study described herein...

10.1021/jasms.0c00415 article EN cc-by-nc-nd Journal of the American Society for Mass Spectrometry 2021-03-12

Flexible screen-printing technology modified with nano/material coating boosted the manufacturing of highly sensitive electrochemical sensors for fast and easy-to-handle tests in different application fields.

10.1039/d3gc01103h article EN cc-by-nc Green Chemistry 2023-01-01

Thin films of hafnium oxide have been prepared by using a dual ion beam sputtering system. A study their physical properties is reported. In particular, structural and compositional characterization was performed means x-ray diffraction photoelectron spectroscopy techniques, showing mixture amorphous polycrystalline structure substoichiometric composition. The atomic force microscopy results shown crater-like morphology probably due to the deposition process. addition gas sensing...

10.1116/1.580999 article EN Journal of Vacuum Science & Technology A Vacuum Surfaces and Films 1998-11-01

Femtosecond pump-probe spectroscopy, in the visible spectral range, is used to study fast processes after photoexcitation quantum confined wurtzite CdSe core and $\mathrm{CdSe}∕\mathrm{CdS}∕\mathrm{ZnS}$ core/shell nanorods. Effective-mass theory applied assign energy levels linear absorption spectra. Sequential bleaching of excitonic states photoinduced are observed transmission difference A strong was found between samples. In fact, transient spectra, decay time higher faster than samples...

10.1103/physrevb.72.125346 article EN Physical Review B 2005-09-30

In this paper, we provide an in-depth electrochemical characterization of a label-free impedimetric immunosensor for rapid detection ochratoxin A. The sensor was based on carbodiimide-mediated amide coupling reaction to immobilize specific A antibody onto 4-mercaptobenzoic acid-modified commercial screen-printed gold electrode. Different variables affecting the performance developed were optimized. Cyclic voltammetry and impedance spectroscopy used analyse modifications interfacial...

10.1016/j.apsusc.2021.150791 article EN cc-by-nc-nd Applied Surface Science 2021-07-30

RATIONALE The aim of this study was to demonstrate, and characterize by high‐resolution mass spectrometry that it is possible preferentially induce covalent cross‐links in peptides using high‐energy femtosecond ultraviolet (UV) laser pulses. cross‐link readily formed only when aromatic amino acids are present the peptide sequence. METHODS Three peptides, xenopsin, angiotensin I, interleukin, individually or combination, were exposed UV pulses, either alone presence spin trapping molecules,...

10.1002/rcm.6610 article EN Rapid Communications in Mass Spectrometry 2013-06-11

A chloride‐based inorganic sol–gel route was used for preparing pure and metal (osmium, nickel, palladium, platinum)‐doped SnO 2 sol. SnCl 4 first reacted with propanol, then the resulting compound hydrolyzed subsequently mixed solutions of dopants. The obtained sols were depositing thin films by spin coating or powders solvent evaporation at 110°C. FTIR spectroscopy thermal analysis revealed that chlorine still bound to tin stabilized sol against gelation hindering condensation reactions....

10.1111/j.1151-2916.2001.tb00606.x article EN Journal of the American Ceramic Society 2001-01-01

Abstract Climate change represents one of the current major challenges and improper use water resources is an impeding threat. Agricultural research can play a crucial role by developing innovative strategies techniques to reduce without affecting crop productivity quality, particularly in grapevine growing Mediterranean areas, as both wine quality are quintessential for economic ecologic sustainability this crop. The present study aimed define deficit irrigation strategy “Primitivo”...

10.1007/s00271-024-00956-0 article EN cc-by Irrigation Science 2024-07-24

GaAs (001), GaP and InP (001) surfaces were exposed to N2 N2–H2 plasmas in order investigate the substrate nitridation process. In situ real time ellipsometry was used assess self-limiting kinetics. Ex x-ray photoelectron spectroscopy atomic force microscopy fingerprint surface composition morphology, respectively. For GaAs, plasma forms a GaN layer whose thickness is limited by As segregation at GaAs/GaN interface. substrates, phosphorous nitride capping formed which inhibits further...

10.1116/1.581747 article EN Journal of Vacuum Science & Technology A Vacuum Surfaces and Films 1999-07-01

Colloidal ZnSe nanocrystals are coated with a ZnS shell and investigated by means of time-resolved photoluminescence spectroscopy. These stable against photooxidation have quantum efficiencies around 15% even months after the synthesis. Recombination processes as function excitation intensity emission energy. Nonlinear such Auger recombination dominate in early times photogeneration electron-hole pairs. The lifetime single exciton states is shorter smaller dots than larger ones, accordance...

10.1063/1.1537050 article EN Applied Physics Letters 2003-01-16
Coming Soon ...