A. V. Machado
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View article: Optimization of Flight Parameters for Gamma Radiation Detection and Mapping Using Drones
Optimization of Flight Parameters for Gamma Radiation Detection and Mapping Using Drones Open
The application of drones in radiometric surveys has emerged as a promising solution, particularly for mapping radiation in areas that are difficult to access. This approach enables the creation of detailed distribution maps. However, the …
View article: Dehydration and physicochemical changes in myopia control contact lenses: influence of material and maintenance solutions
Dehydration and physicochemical changes in myopia control contact lenses: influence of material and maintenance solutions Open
View article: Educação Brasileira e Cooperação no Ensino Superior
Educação Brasileira e Cooperação no Ensino Superior Open
View article: New Strategy for Upcycling Marine Plastic Waste Through the Development of a Diamine-Functionalized Poly(ethylene terephthalate) Compatibilizer
New Strategy for Upcycling Marine Plastic Waste Through the Development of a Diamine-Functionalized Poly(ethylene terephthalate) Compatibilizer Open
A compatibilizer for low-density polyethylene (LDPE)/poly(ethylene terephthalate) (PET) blends was developed. This compatibilizer consists of amine-functionalized PET, which is blended with maleated polyethylene to form a copolymer. The go…
View article: Challenges and persistence of contact lenses in wastewater treatment plants: Environmental implications
Challenges and persistence of contact lenses in wastewater treatment plants: Environmental implications Open
View article: A Drone-Based Approach for Radiometric Mapping of Gamma Radiation
A Drone-Based Approach for Radiometric Mapping of Gamma Radiation Open
This work presents the results of an experiment conducted with an Unmanned Aerial Vehicle (UAV) equipped with a Geiger-Müller detector module, aimed at validating a gamma radiation detection methodology. The experiment took place at the Ba…
View article: Novel Benzothiazole Boc-Phe-Phe-Bz Derivative Dipeptide Forming Fluorescent and Nonlinear Optical Self-Assembled Structures
Novel Benzothiazole Boc-Phe-Phe-Bz Derivative Dipeptide Forming Fluorescent and Nonlinear Optical Self-Assembled Structures Open
This work explores the self-assembly and optical properties of a novel chiral, aromatic-rich Boc-Phe-Phe dipeptide derivative functionalized with a benzothiazole bicyclic ring that forms supramolecular structures. Leveraging the well-known…
View article: Novel Benzothiazole Boc-Phe-Phe-Bz Derivative Dipeptide Forming Fluorescent and Nonlinear Optical Self-Assembled Structures
Novel Benzothiazole Boc-Phe-Phe-Bz Derivative Dipeptide Forming Fluorescent and Nonlinear Optical Self-Assembled Structures Open
This work explores the self-assembly and optical properties of a novel chiral, aromatic-rich Boc-Phe-Phe dipeptide derivative functionalized with a benzothiazole bicyclic ring, which forms supramolecular structures. Leveraging the well-kno…
View article: Challenges and Persistence of Contact Lenses in Wastewater Treatment Plants: Environmental Implications
Challenges and Persistence of Contact Lenses in Wastewater Treatment Plants: Environmental Implications Open
View article: A New Approach in PLS/TPS Compatibilization Using Garlic Oil: Effect on Morphological and Antioxidant Properties
A New Approach in PLS/TPS Compatibilization Using Garlic Oil: Effect on Morphological and Antioxidant Properties Open
The packaging industry has made efforts to reduce food waste and improve the resilience of food systems worldwide. Active food packaging, which incorporates active agents, represents a dynamic area where industry and academia have develope…
View article: Compatibilizer Efficiency in Enhancing Marine Plastic Waste Valorization Through Simulated Recycled Plastic Blends
Compatibilizer Efficiency in Enhancing Marine Plastic Waste Valorization Through Simulated Recycled Plastic Blends Open
This study investigated the optimal combination of compatibilizers and stabilizers to enhance the value of marine environment plastic (MEP). The composition of the plastics was analysed, and a simulated recycled plastic blend (sMEP) was pr…
View article: Crystal Structure and Optical Second Harmonic Generation of Self-Assembled Boc-P-Nitro-L-Phenylalanyl-P-Nitro-L-Phenylalanine Dipeptide
Crystal Structure and Optical Second Harmonic Generation of Self-Assembled Boc-P-Nitro-L-Phenylalanyl-P-Nitro-L-Phenylalanine Dipeptide Open
Boc(Boc= tert-butoxycarbonyl)-p-nitro-L-phenylalanyl-p-nitro-L-phenylalanine, a dipeptide characterized by acentric symmetry, self-assembles into micro-tapes. This study explores its thermal, structural, and nonlinear optical properties. T…
View article: Anti-industry beliefs and attitudes mediate the effect of culturally tailored anti-smoking messages on quit intentions among sexual minority women
Anti-industry beliefs and attitudes mediate the effect of culturally tailored anti-smoking messages on quit intentions among sexual minority women Open
View article: From multilayer LDPE/EVOH flexible film scraps to new multilayer films
From multilayer LDPE/EVOH flexible film scraps to new multilayer films Open
This study explores the mechanical and optical properties of multilayer films incorporating recycled materials, mimicking the structure of industrial films. Using a coextrusion blown film line with a three-layer ABC configuration extrusion…
View article: Toward mechanical recyclability of high barrier food packaging films through filler incorporation on the <scp>EVOH</scp> layer
Toward mechanical recyclability of high barrier food packaging films through filler incorporation on the <span>EVOH</span> layer Open
To preserve food from moisture and oxygen, polymers, such as ethylene vinyl alcohol (EVOH) are used in multilayer structures to provide oxygen barrier, while low‐density polyethylene (LDPE) is used for a water vapor barrier. While this mat…
View article: Investigation of Toughening Mechanisms in Elastomeric Polycarbonate Blends through Morphological and Mechanical Characterization at Small and Medium Strain Rates
Investigation of Toughening Mechanisms in Elastomeric Polycarbonate Blends through Morphological and Mechanical Characterization at Small and Medium Strain Rates Open
Despite polycarbonate (PC) being a widely used engineering plastic, its notch and crack sensitivity pose challenges in critical applications. To address this, PC was blended with elastomeric polymers to explore the improvement in toughness…
View article: Overview of Collaborative Research Between UNICAMP in Brazil and Fermilab in Cryogenics
Overview of Collaborative Research Between UNICAMP in Brazil and Fermilab in Cryogenics Open
The Long-Baseline Neutrino Facility (LBNF) situated at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, serves as the host for the Deep Underground Neutrino Experiment (DUNE), employing cryostats with nearly 70,000 m…
View article: Microplastics Biodegradation by Estuarine and Landfill Microbiomes
Microplastics Biodegradation by Estuarine and Landfill Microbiomes Open
Plastic pollution poses a worldwide environmental challenge, affecting wildlife and human health. Assessing the biodegradation capabilities of natural microbiomes in environments contaminated with microplastics is crucial for mitigating th…
View article: Investigation of Toughening Mechanisms in Elastomeric PC Blends through Morphological and Mechanical Characterization at Small and Medium Strain Rates
Investigation of Toughening Mechanisms in Elastomeric PC Blends through Morphological and Mechanical Characterization at Small and Medium Strain Rates Open
Despite polycarbonate (PC) being a widely used engineering plastic, its notch and crack sensitivity pose challenges in critical applications. To address this, PC was blended with elastomeric polymers to explore the improvement in toughness…
View article: Feasibility of incorporating recycled multilayer <scp>LDPE</scp>/<scp>EVOH</scp> films into flexible packaging
Feasibility of incorporating recycled multilayer <span>LDPE</span>/<span>EVOH</span> films into flexible packaging Open
Multilayer films are widely used in the food industry because they allow the combination of properties of different materials to increase product shelf life without sacrificing product value. Despite the associated benefits, these films ar…
View article: Development of a Polyethylene Breathable Packaging Film with Modified Microcrystalline Cellulose for Fresh Products
Development of a Polyethylene Breathable Packaging Film with Modified Microcrystalline Cellulose for Fresh Products Open
In this study, a material based on polyethylene (PE) and microcrystalline cellulose (MC) was developed as a breathable packaging film. Surface functionalization of MC with 3-aminopropyltriethoxysilane (APTES) has been shown to be an effici…
View article: Blown film of PLA for packaging with green tea and fish industrial residues: An insight on their properties
Blown film of PLA for packaging with green tea and fish industrial residues: An insight on their properties Open
Available online 13 April 2024
View article: Piezoelectric and Pyroelectric Properties of Organic MDABCO-NH4Cl3 Perovskite for Flexible Energy Harvesting
Piezoelectric and Pyroelectric Properties of Organic MDABCO-NH4Cl3 Perovskite for Flexible Energy Harvesting Open
This study describes the synthesis and characterization of the lead-free organic ferroelectric perovskite N-methyl-N’-diazabicyclo [2.2.2]octonium)-ammonium trichloride (MDABCO-NH4Cl3). The electrospinning technique was employed to obtain …
View article: Development of a Breathable Packaging Film for Fresh Products
Development of a Breathable Packaging Film for Fresh Products Open
In this study a material based on Polyethylene (PE) and Microcrystalline Cellulose (MC) was developed as a breathable packaging film. Surface functionalization of MC with 3 aminopropyltriethoxysilane (APTES) shows to be an efficient altern…
View article: Piezoelectric and Pyroelectric Properties of Organic MDABCO-NH4Cl3 Perovskite for Flexible Energy Harvesting
Piezoelectric and Pyroelectric Properties of Organic MDABCO-NH4Cl3 Perovskite for Flexible Energy Harvesting Open
This study describes the synthesis, and characterization of lead-free organic ferroelectric perovskite N-methyl-N’-diazabicyclo[2.2.2]octonium)-ammonium trichloride (MDABCO-NH4Cl3). The electrospinning technique was employed to obtain nano…
View article: Active Low-Density Polyethylene-Based Films by Incorporating α-Tocopherol in the Free State and Loaded in PLA Nanoparticles: A Comparative Study
Active Low-Density Polyethylene-Based Films by Incorporating α-Tocopherol in the Free State and Loaded in PLA Nanoparticles: A Comparative Study Open
In this work, alpha-tocopherol (α-TOC) was encapsulated in poly(lactic acid) nanoparticles (PLA NPs) and added to low-density polyethylene (LDPE) films with the aim of producing an active film for food packaging applications. PLA NPs loade…
View article: Blown Film of PLA for Packaging with Green Tea and Fish Industrial Residues: An Insight on Their Properties
Blown Film of PLA for Packaging with Green Tea and Fish Industrial Residues: An Insight on Their Properties Open
View article: From Multilayer Ldpe/Evoh Flexible Film Scraps to New Multilayer Films
From Multilayer Ldpe/Evoh Flexible Film Scraps to New Multilayer Films Open
View article: Culturally Tailored Anti-Smoking Messages: A Randomized Trial With U.S. Sexual Minority Young Women
Culturally Tailored Anti-Smoking Messages: A Randomized Trial With U.S. Sexual Minority Young Women Open
View article: Nanoplasmonic Au:CuO thin films functionalized with APTES to enhance the sensitivity of gas sensors
Nanoplasmonic Au:CuO thin films functionalized with APTES to enhance the sensitivity of gas sensors Open
Carbon monoxide (CO) is a highly flammable and toxic gas to humans and animals, that's why its detection and monitoring are crucial. A promising technique to develop a robust and cheap gas sensor, operating at room temperature, is Localize…