16 documents found, page 1 of 2
Confidencialidade e Proteção de Dados
Fonseca, Ana Beatriz; Costa, Bárbara; Pereira, Daniela; Duarte, Flávia; Oliveira, Marco; Camarinha, AnaA necessidade de informação e acesso à mesma, cresce de dia para dia. A tecnologia, nos últimos tempos, afirmou-se como uma componente extremamente importante, uma vez que mudou o rumo como a sociedade e as organizações evoluíram sedentas de informação, tendo em conta que o acesso à mesma cresceu. A informação encontra-se difundida por toda a parte e está presente em diversos tipos de suportes, desde o papel at...
Harvesting the power of green synthesis: gold nanoparticles tailored for prosta...
Oliveira, Marco; Sousa, André; Sá, Sara; Soares, Sílvia; Pereira, Ana Cláudia; Rocha, Ana Catarina; Pais, Patrick; Ferreira, Diogo; Almeida, CátiaBiosynthetic gold nanoparticles (bAuNPs) present a promising avenue for enhancing biocompatibility and offering an economically and environmentally responsible alternative to traditional production methods, achieved through a reduction in the use of hazardous chemicals. While the potential of bAuNPs as anticancer agents has been explored, there is a limited body of research focusing on the crucial physicochemic...
The magic cocktail: ampicillin and biosynthesized gold nanoparticles synergism ...
Oliveira, Marco; Soares, Silvia; Sá, Sara; Gestoso, Álvaro; Correa-Duarte, Miguel; Baylina, Pilar; Fernandes, Rúben; Pereira, Carla F.Gold nanoparticles (AuNPs) have garnered attention as a potential alternative to conventional antibiotics due to their innovative antibacterial properties. This study demonstrates the successful production of biosynthetic gold nanoparticles (bAuNPs) using Pseudomonas aeruginosa (P. aeruginosa) as spherical nanostructures at 58 °C for 24 h, under alkaline pH (9.0). The successful synthesis of bAuNPs was confirme...
The magic cocktail: Ampicillin and Biosynthesized gold nanoparticles synergism ...
Oliveira, Marco; Soares, Sílvia; Sá, Sara; Gestoso, Álvaro; Correa-Duarte, Miguel; Baylina, Pilar; Fernandes, Rúben; Pereira, Carla F.Gold nanoparticles (AuNPs) have garnered attention as a potential alternative to conventional antibiotics due to their innovative antibacterial properties. This study demonstrates the successful production of biosynthetic gold nanoparticles (bAuNPs) using Pseudomonas aeruginosa (P. aeruginosa) as spherical nanostructures at 58 ◦C for 24 h, under alkaline pH (9.0). The successful synthesis of bAuNPs was confirme...
Virulence-linked mutations in rubredoxin reductase and glutaredoxin: impact on ...
Sá, Sara; Silva, Carina; Dias, Maria Clara; Veiga, Marlene; Lopes, Sofia; Fernandes, Ruben; Rocha, Ana Catarina; Pais, Patrick J.; Oliveira, MarcoPseudomonas aeruginosa (PAO1) is an opportunistic pathogen, lethal in immunocompromised individuals. The clinical management of PAO1 infections still depends deeply on antibiotic therapy. However, this therapy has been alarmingly overpowered by growing bacterial resistance mechanisms over the years. One of these bacterial mechanisms is quorum sensing (QS). QS is involved in the production of biofilm, rhamnolipi...
New CTX‐M group conferring β‐lactam resistance: a compendium of phylogenetic in...
Mendonça, Jacinta; Guedes, Carla; Silva, Carina; Sá, Sara; Oliveira, Marco; Accioly, Gustavo; Baylina, Pilar; Barata, Pedro; Pereira, CláudiaThe production of extended‐spectrum β‐lactamases (ESBLs) is the main defense mechanism found in Gram negative bacteria. Among all the ESBLs, the CTX‐M enzymes appear as the most efficient in terms of dissemination in different epidemiological contexts. CTX‐M enzymes exhibit a striking plas-ticity, with a large number of allelic variants distributed in several sublineages, which can be associated with functional...
The history and applications of phage therapy in pseudomonas aeruginosa
Silva, Carina; Sá, Sara; Guedes, Carla; Oliveira, Carla; Lima, Cláudio; Oliveira, Marco; Mendes, João; Novais, Gonçalo; Baylina, Pilar; Fernandes, RubenThe Pseudomonas aeruginosa is one of the bacteria that cause serious infections due to resistance to many antibiotics can be fatal in severe cases. Antimicrobial resistance is a global public health concern. To solve this problem, interest in phage therapy has revived; some studies are being developed to try to prove the effectiveness of this therapy. Thus, in this opinion article, several historical aspects ar...
New CTX-M group conferring β-Lactam resistance: A compendium of phylogenetic in...
Mendonça, Jacinta; Guedes, Carla; Silva, Carina; Sá, Sara; Oliveira, Marco; Accioly, Gustavo; Baylina, Pilar; Barata, Pedro; Pereira, CláudiaThe production of extended-spectrum β-lactamases (ESBLs) is the main defense mechanism found in Gram negative bacteria. Among all the ESBLs, the CTX-M enzymes appear as the most efficient in terms of dissemination in different epidemiological contexts. CTX-M enzymes exhibit a striking plasticity, with a large number of allelic variants distributed in several sublineages, which can be associated with functional ...
Redução electroquímica de iões de terras raras e o seu efeito na corrosão de me...
Oliveira, Marco; Bastos, A.C.; Kallip, Silvar; Zheludkevich, Mikhail; Ferreira, M.G.S.RESUMO: Os iões de terras raras estão entre os inibidores de corrosão de nova geração mais promissores. No entanto, foram encontradas condições onde a corrosão é acelerada na presença destes iões [1]. O caso mais relevante devido à sua importância é o aumento da corrosão do zinco no par galvânico zinco-ferro. Esse aumento está associado a uma reacção catódica adicional inesperada que é observada nas curvas de p...
Development and validation of an anthropometric equation to predict fat mass pe...
Giro, Rita; Matias, Catarina N.; Campa, Francesco; Santos, Diana A.; Cavaca, Margarida L.; Duque, Pedro; Oliveira, Marco; Matos, Nuno; Vicente, FilipaThis study aimed to (i) characterise the body composition of professional and semi-professional male futsal players, (ii) assess the validity of commonly used equations to estimate FM%, (iii) develop and cross-validate a futsal-specific FM% prediction equation. In a cross-sectional design, 78 adult male futsal players were assessed for body mass, stature, skinfolds, and girths as per the International Society f...