A5035282108- Advanced Physical and Chemical Molecular Interactions
- Conducting polymers and applications
- Inorganic and Organometallic Chemistry
- melanin and skin pigmentation
- Organic Electronics and Photovoltaics
- Thin-Film Transistor Technologies
- Organic Light-Emitting Diodes Research
- Carbon Nanotubes in Composites
- Plant-Derived Bioactive Compounds
- Transition Metal Oxide Nanomaterials
- Magnetic and Electromagnetic Effects
- Fiber-reinforced polymer composites
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Electrohydrodynamics and Fluid Dynamics
- Biochemical Analysis and Sensing Techniques
- Analytical Chemistry and Sensors
- Silicon and Solar Cell Technologies
- Radiation Effects and Dosimetry
- Chemical and Physical Properties of Materials
- Advanced Sensor and Energy Harvesting Materials
- Molecular Junctions and Nanostructures
- Chalcogenide Semiconductor Thin Films
- Advanced Memory and Neural Computing
- Silicon Nanostructures and Photoluminescence
Universidade Estadual Paulista (Unesp)
2016-2025
National Institute of Meteorology
2025
Universidade de São Paulo
2001-2020
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
2017
Université de Pau et des Pays de l'Adour
2017
Centre National de la Recherche Scientifique
2017
Fundação de Apoio à Universidade Federal de São Paulo
2009-2016
Sapienza University of Rome
2016
Universidade Federal de São Paulo
2016
Universidade de Ribeirão Preto
2004-2006
Chronic wounds have a significant impact on patients' quality of life, necessitating the management pain, infection, bleeding, and emotional challenges. Debridement, which involves removal nonviable tissue, is crucial for promoting wound healing. In addition to surgical methods, cost-effective alternatives such as local solutions ointments with biological properties been explored. The use natural compounds anti-inflammatory, antibacterial, collagen-synthesizing abilities holds promise This...
In this work, we propose natural rubber latex (NRL) membranes as a protein delivery system. For purpose Bovine Serum Albumin (BSA) was incorporated into the solution for in vitro experiments. Different polymerization temperatures were used, from -10 to 27 °C, order control membrane morphology. These characterized by Scanning Electron Microscopy (SEM), Atomic Force (AFM), well Lowry Method measure BSA release. SEM and AFM microscopy analysis showed that number, size distribution of pores NRL...
Abstract Latex extracted from Hevea brasiliensis was used as an occlusive membrane for guided bone regeneration. Twenty‐four rabbits were divided in two groups: treated and control group. Critical size defects (2 cm × 1 cm) surgically made the rabbit calvarium. Two latex membranes implanted each animal of group, whereas defect filled only with autogenous blood clot. After 15, 30, 60, 120 days, animals group euthanized, samples regenerated removed. No signs allergy or rejection noticed around...
Eumelanin pigments show hydration-dependent conductivity, broad-band UV-vis absorption, and chelation of metal ions. Solution-processing synthetic eumelanins opens new possibilities for the characterization eumelanin in thin film form its integration into bioelectronic devices. We investigate effect different synthesis routes processing solvents on growth, morphology, chemical composition films using atomic force microscopy X-ray photoelectron spectroscopy. further characterize by transient...
The development of pH sensors is great interest due to its extensive application in several areas such as industrial processes, biochemistry and particularly medical diagnostics. In this study, the sensing properties an extended gate field effect transistor (EGFET) based on melanin thin films active layer are investigated physical mechanisms related device operation discussed. Thin were produced from different precursors indium tin oxide (ITO) gold substrates by Atomic Force Microscopy...
Abstract The application of highly sensitive pH sensors manufactured in volume at low cost has great commercial interest due to an extensive array potential applications. Such areas include industrial processing, biotechnology and medical diagnostics particularly the development point care (POC) devices. A novel printable electrochemical sensor based on graphene pigment melanin (PGM), was designed produced by using a screen printing process that enables up scaling for application. We...
Nb 2 O 5 –Ti 3 C exhibits beneficial band-edge alignment, favoring carrier migration with a higher density of extracted charges and increased electron lifetime.
Subbandgap absorption of chemical-vapor-deposition diamond films, with nitrogen contents varying from 10 to 132 ppm has been explored by the constant-photoconductivity method (CPM), photothermal-deflection spectroscopy (PDS) and electron spin resonance (ESR). The spectra measured PDS increase monotonically are structureless increasing photon energies indicating due amorphous carbon graphite. CPM data show distinct features, bands at h\ensuremath{\nu}=1.6, 4.0, 4.7 eV in nominally undoped...
Natural Rubber Latex (NRL) can be used successfully in controlled release drug delivery due to their excellent matrix forming properties. Recently, NRL has shown stimulate angiogenesis, cellular adhesion and the formation of extracellular matrix, promoting replacement regeneration tissue. A dermatological system comprising a topically acceptable, inert support impregnated with metronidazole (MET) solution was developed. MET 2-(2- methyl- 5-nitro- 1H- imidazol- 1-yl) ethanol, been widely for...
Electronic structure calculations were employed to evaluate spin hamiltonian parameters of distinct monomers and dimers melanin. The results bring valuable insights regarding the nature sub-structures responsible for intrinsic paramagnetism observed in this biomaterial their roles electrical conductivity.
TiO2 derivatives with distinct morphologies have been successfully obtained by microwave assisted hydrothermal synthesis in acidic and alkaline medium using mild conditions. Titanium tetraisopropoxide (TTIP) was used as precursor different environmental conditions under low temperatures, inferior to 150 °C, short times, from 2 60 min. X ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM) N2 adsorption at 77 K (BET) were characterize the microstructural properties of...
Melanins are natural pigments with promising bioelectronic applications. Among their unique properties, the existence of a persistent paramagnetic signal can be considered one most intriguing and controversial features. Additionally, possible influence such centers on charge transport accentuates need for better understanding origin specific characteristics. In this report, electron resonance spectra melanin samples obtained at different experimental conditions were systematically studied....
Extended gate field-effect transistor (EGFET) is a device composed of conventional ion-sensitive electrode and MOSFET device, which can be applied to the measurement ion content in solution. This structure has lot advantages as compared Ion- Sensitive Field Effect Transistor (ISFET). In this work, we constructed an EGFET by connecting sensing fabricated with SnO2 commercial (CD4007UB). From numerical simulation site binding model it possible determine some desirable characteristics films. We...