185 documents found, page 1 of 19
Genossensores Eletroquímicos de Identificação de Espécies Vegetais: Foco no Cas...
Morais, Stephanie; Pereira, Eduarda; Castanheira, Michelle; Santos, Marlene; Domingues, Valentina; Deleure-Matos, Cristina; Barroso, FátimaNeste trabalho, foram desenvolvidos dois genossensores eletroquímicos descartáveis para a identificação de plantas baseado na reação de hibridização entre duas cadeias de ADN complementares de duas espécies de plantas: Erica arborea (urze) e Castanea sativa (castanheiro). Analisando bases de dados públicas, foram selecionados dois pares de sequências especificamente cortadas e desenhadas para identificar o ADN ...
Warfarin pharmacogenomics: Designing electrochemical DNA-based sensors to detec...
Barbosa, Tiago; Morais, Stephanie L.; Pereira, Eduarda; Magalhães, Júlia M. C. S.; Domingues, Valentina F.; Ferreira-Fernandes, Hygor; Pinto, GiovannyThe CYP2C9 enzyme is involved in the metabolism of warfarin. The CYP2C9 gene harbors several single-nucleotide polymorphisms (SNPs), including CYP2C9*2 (rs1799853), which is known to affect warfarin’s therapeutic response. So, it is important to develop analytical tools capable of genotyping these SNPs to adjust warfarin’s therapeutic outcomes. In this work, an electrochemical DNA-based sensor was constructed a...
Design of innovative electrochemical genosensors for honey fraud and quality de...
Morais, Stephanie L.; Castanheira, Michelle; Pereira, Eduarda; Santos, Marlene; Domingues, Valentina F.; Delerue-Matos, Cristina; Barroso, M. FátimaEnsuring food safety has become a concern for companies, consumers and the government alike, due to the increase of fraudulent and/or adulterated food products found in the global market [1,2]. Some common fraudulent strategies include mislabelling a product's geographical origin and blending it with lower-grade substances [3]. Among the frequently adulterated food products there is honey. Honey is a highly sou...
Ensuring food safety: electrochemical genosensors for the authentication of pla...
Morais, Stephanie L.; Pereira, Eduarda; Castanheira, Michelle; Santos, Marlene; Domingues, Valentina; Delerue-Matos, Cristina; Barroso, M. FátimaHoney is a high-quality and natural ingredient often consumed because of its unique sweet taste and multiple therapeutic and nutritional benefits. These properties are normally intrinsically connected to the regional flora from which the plant pollen is harvested. Hence, the botanical and geographical origins of honeys play a substantial role in the end product's composition. With the recent interest in natural...
Plant honey origin authentication: Use of electrochemical genosensors for food ...
Morais, Stephanie; Pereira, Eduarda; Castanheira, Michelle; Santos, Marlene; Domingues, Valentina; Delerue-Matos, Cristina; Barroso, M. FátimaHoney is a natural high-quality food product consumed worldwide due to its diverse nutritional profile and beneficial medical properties. These factors, along with honey’s unique sweet taste and odour, make it one of the most popular products for a healthy diet. Nevertheless, food fraud is an increasing problem with various impacts on the economy, health, and in the environment, as honey prices are established ...
Comparison between anthropometric equipment and scanners in hand measurement
Filho, P. C. Anacleto; Silva, Lincoln da; Castellucci, H. I.; Rodrigues, Matilde; Pereira, Eduarda; Pombeiro, Ana; Colim, Ana; Carneiro, PaulaAnthropometric studies have influenced the design of apparel, accessories, medical prostheses, equipment, workstations, and tools. Particularly, hand anthropometry is related to safety and adequacy of hand tools and devices. Different equipment and methods can be used to obtain body measurements with different precision and reliability levels. However, precision and reliability are not the only aspects to be co...
Trace elements assessment in Cerastoderma glaucum from port areas in the Tunisi...
Ben Youssef-Dridi, Soumaya; Magalhães, Luísa; Soares, Amadeu M. V. M.; Pereira, Eduarda; Freitas, Rosa; Gargouri, LamiaIn the present study, the seasonal concentration of seven trace elements was investigated in sediment and the cockle Cerastoderma glaucum tissues from two port areas in the North-East and South of Tunisia comparing cockles non-parasitized (NP) and parasitized (P) with digenean parasites. Elements concentration in sediments analyzed in both sites revealed that Zinc (Zn), Chromium (Cr), and Lead (Pb) were the mos...
Extraction of platinum and palladium from aqueous solutions using ionic-liquid-...
Almeida, Joana C.; Cardoso, Celso E. D.; Neves, Márcia C.; Trindade, Tito; Freire, Mara G.; Pereira, EduardaPlatinum (Pt) and palladium (Pd) are noble metals with a high economic and strategic value in several technologies, including catalytic converters production. This work focused on the impact of three key variables on the performance of ionic liquid (IL)-modified magnetite nanoparticles (NPs) in removing Pt(IV) and Pd(II) from aqueous solutions, in which the optimal operational conditions were identified through...
Silica supported ionic liquids for the efficient and selective recovery of plat...
Almeida, Joana C.; Neves, Márcia C.; Trindade, Tito; Freire, Mara G.; Pereira, EduardaPlatinum (Pt) and palladium (Pd) are considered critical elements due to their scarcity and high demand for important technologies, namely, in automotive catalytic converters. Therefore, sustainable technologies that are able to selectively extract such metals from secondary sources are extremely important. This work focuses on the preparation and evaluation of silica gel modified with ionic liquids (ILs) as al...
Ionic-liquid-supported magnetic nanoparticles: synthesis, characterization, and...
Almeida, Joana C.; Cardoso, Celso E. D.; Neves, Márcia; Freire, Mara G.; Pereira, EduardaThe evolution of the electric vehicle market and the ongoing demand for lithium (Li), cobalt (Co) and nickel (Ni) for batteries production requires secondary sources for obtaining these elements. The recycling of Li-ion batteries involves hydrometallurgical processes with potential environmental implications, hence there is an urgent need for sustainable and more efficient recycling methods. Functionalized coll...