Mônica Lopes Aguiar

Electrospun Polymeric Nanofibers Incorporating Brazilian Red Propolis Extract for Wound Dressing Applications

Maria Sirlene Morais, Paulo Augusto Marques Chagas, Gustavo Cardoso da Mata, Gabriela R. Silva et autres

Background/Objectives: Chronic wounds remain difficult to manage because persistent inflammation, microbial colonization, and excess exudate require dressings that combine structural integrity, bioactivity, antimicrobial performance, and cytocompatibility. This study aimed to develop electrospun nanofibrous mats based on gelatin, poly(vinyl alcohol) (PVA), and poly(ε-caprolactone) …

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Experimental evaluation of convergent–divergent geometries applied to natural gas treatment in the oil industry

Mônica Lopes Aguiar

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Enhanced soybean seed germination through a bio-based and easy-to-apply short cellulose acetate nanofiber delivery system

Paulo Augusto Marques Chagas, Gabriela Brunosi Medeiros, Gustavo Cardoso da Mata, WANDERLEY PEREIRA DE OLIVEIRA et autres

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rPET Nanofiber Membranes for Air Filtration: High Performance via Electrospinning Optimization

Gabriela Brunosi Medeiros, Paulo Augusto Marques Chagas, Gustavo Cardoso da Mata, Daniela Patrícia Freire Bonfim et autres

Although recycled poly(ethylene terephthalate) (rPET) is an attractive, sustainable feedstock for electrospinning, optimization of processing variables for filtration performance remains limited. This study quantifies how polymer concentration, flow rate, and applied voltage govern fiber morphology and key filtration metrics—collection efficiency (η), pressure …

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Surfactant‐Enhanced Electrospun Nanofiber Filters for Efficient Viral and Bacterial Inactivation

Edilton Nunes da Silva, Paulo A. M. Chagas, Gustavo Cardoso da Mata, F. S. Lima et autres

ABSTRACT Air pollution caused by particulate matter (PM) and bioaerosols, including viruses and bacteria, represents a major global health concern. The development of air filters combining high filtration efficiency with antimicrobial activity is therefore essential. This study investigates electrospun polyacrylonitrile (PAN) nanofibers …

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Spider-Net Structures in Electrospun Poly(vinyl alcohol)/Chitosan Nanofibers for Airborne Nanoparticle Filtration

Gustavo Cardoso da Mata, Maria Sirlene Morais, WANDERLEY PEREIRA DE OLIVEIRA, Mônica Lopes Aguiar

High Resolution Image Download MS PowerPoint Slide “Spider-net” structures, nanometric web-like formations between electrospun fibers, have demonstrated significant potential for air filtration by enhancing material porosity and particle capture efficiency. However, their application has been primarily explored in synthetic polymers, raising concerns …

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Antibacterial and antiviral activity of a highly efficient electrospun r‐ PET nanofiber

Karine Machry, Danilo Machado de Melo, Daniela Patrícia Freire Bonfim, Paulo Augusto Marques Chagas et autres

Abstract Since the COVID‐19 pandemic, the emergence of clean air has increased interest in developing antimicrobial air filters, targeting sterilization and public health concerns. Nanofibers are a promising approach due to their high efficiency in air filtration, while nanoparticles adhered to the …

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Investigation of supersonic flow in a Laval nozzle with different convergent and divergent geometries

Liliana de Luca Xavier Augusto, Karla Raphaela Braga de Melo, Mônica Lopes Aguiar, Vádila Giovana Guerra et autres

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Electrospinning Parameters for Air Filtration with Spider-Net Structures

Gustavo Cardoso da Mata, Maria Sirlene Morais, WANDERLEY PEREIRA DE OLIVEIRA, Mônica Lopes Aguiar

Since the SARS-CoV-2 pandemic, the scientific community has increasingly focused on air pollution and its associated health impacts, particularly in urban areas. However, most air filtration systems still rely on synthetic materials, highlighting the need for natural, renewable alternatives. Due to their …

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Analysis of recycled polystyrene electrospinning process: Fiber diameter, morphology, and filtration applications

Felipe de Aquino Lima, Ana Carolina Sguizzato Honorato, Gabriela Brunosi Medeiros, Paulo Augusto Marques Chagas et autres

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Nonwoven Polypropylene Coated Poly(caprolactone) and Poly(1-vinylpyrrolidone-co-vinyl acetate) Electrospun Membranes for Improved Filtration Performance

Ariane R. de S. Rossin, Arthur R. S. Kammler, Mônica Lopes Aguiar, Gabriela Brunosi Medeiros et autres

Air pollution can expose the population to severe respiratory problems. Fibrous filters, such as those obtained by electrospinning nanofibers, have the potential to improve the filtration performance of standard filters. The aim of this work was to produce and evaluate the electrospinning …

From waste to innovation: Advancing the circular economy with nanofibers using recycled polymers and natural polymers from renewable or waste residues

Paulo Augusto Marques Chagas, Felipe A. Lima, Gabriela B. Medeirosi, Gustavo Cardoso da Mata et autres

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