11 documents found, page 1 of 2
From food wastes to innovative crayfish chitosan bioactive membranes to fight c...
Conde, Alexandra Pereira; Borges, Sandra; Veloso, Telma; Pereira, Joana L.; Ventura, Sónia P. M.; Pintado, ManuelaBacterial and fungal vaginal infections pose significant health risks, necessitating effective and practical treatment strategies. Traditional antimicrobial treatments include pills, lotions, gels, and capsules. Recently, vaginal films have gained popularity due to their softness, flexibility, and ability to dissolve in vaginal fluid. These films are composed of plasticizers, antimicrobials, and polymers (Macha...
The role of biomass elemental composition and ion-exchange in metal sorption by...
Carreira, Ana R. F.; Veloso, Telma; Macário, Inês P. E.; Pereira, Joana L.; Ventura, Sónia P. M.; Passos, Helena; Coutinho, João A. P.The use of macroalgae, microalgae and cyanobacteria for metal sorption has been widely reported. Still, there are no studies allowing a direct comparison of the performance of these biomasses, especially while evaluating metal competition. The simultaneous sorption of Co2+, Cu2+, Ni2+ and Zn2+ present in a multi-elemental solution by six macroalgae, two microalgae and three cyanobacteria was evaluated. Brown ma...
Unveiling the use of hydrophobic eutectic solutions as task-specific solvents t...
Kholany, Mariam; Schaeffer, Nicolas; Macário, Inês P. E.; Veloso, Telma; Caetano, Tânia; Pereira, Joana L.; Dias, Ana C. R. V.; Coutinho, João A. P.Haloarchaea make up a class of untapped marine microbial resources that constitute a promising source of valuable compounds with unique characteristics. Bacterioruberin is a C50 carotenoid produced by haloarchaea that possesses interesting antioxidant properties and bioactivities relevant to the food and cosmetic industries. As a substitute for the conventional organic solvents used in the extraction of nonpola...
Cyanobacteria as candidates to support mars colonization: growth and biofertili...
Macário, Inês P. E.; Veloso, Telma; Frankenbach, Silja; Serôdio, João; Passos, Helena; Sousa, Clara; Gonçalves, Fernando J. M.; Ventura, Sónia P. M.Cyanobacteria are indicated as organisms that can possibly support Mars colonization, contributing to the production of oxygen and other commodities therein. In this general context, the aim of this work was to evaluate the ability of three species of cyanobacteria (Anabaena cylindrica, Nostoc muscorum, and Arthrospira platensis) and a green microalga (Chlorella vulgaris) to grow using only the resources existi...
Recovery of bacterioruberin and proteins using aqueous solutions of surface-act...
Vaz, Bárbara M. C.; Kholany, Mariam; Pinto, Diana C. G. A.; Macário, Inês P. E.; Veloso, Telma; Caetano, Tânia; Pereira, Joana L.; Coutinho, João A. P.Haloarchaea microorganisms are little explored marine resources that can be a promising source of valuable compounds with unique characteristics, due to their adaptation to extreme environments. In this work, the extraction of bacterioruberin and proteins from Haloferax mediterranei ATCC 33500 was investigated using aqueous solutions of ionic liquids and surfactants, which were further compared with ethanol. De...
Bio-based solar energy harvesting for onsite mobile optical temperature sensing...
Correia, Sandra F. H.; Bastos, Ana R. N.; Martins, Margarida; Macário, Inês P. E.; Veloso, Telma; Pereira, Joana L.; Coutinho, João A. P.The Internet of Things (IoT) fosters the development of smart city systems for sustainable living and increases comfort for people. One of the current challenges for sustainable buildings is the optimization of energy management. Temperature monitoring in buildings is of prime importance, as heating account for a great part of the total energy consumption. Here, a solar optical temperature sensor is presented w...
Cyanobacteria as Candidates to Support Mars Colonization: Growth and Biofertili...
Macário, Inês P. E.; Veloso, Telma; Frankenbach, Silja; Serôdio, João; Passos, Helena; Sousa, Clara; Gonçalves, Fernando J. M.; Ventura, Sónia P. M.Cyanobacteria are indicated as organisms that can possibly support Mars colonization, contributing to the production of oxygen and other commodities therein. In this general context, the aim of this work was to evaluate the ability of three species of cyanobacteria (Anabaena cylindrica, Nostoc muscorum, and Arthrospira platensis) and a green microalga (Chlorella vulgaris) to grow using only the resources existi...
Are cyanobacteria a nearly immortal source of high market value compounds?
Macário, Inês P. E.; Veloso, Telma; Fernandes, Andreia P. M.; Martins, Margarida; Frankenbach, Silja; Serôdio, João; Gonçalves, Fernando J. M.BACKGROUND: When the human population increases, so does the need to explore a wider range of feedstocks and biomasses, such as cyanobacteria. However, a deeper understanding of the growth patterns and pigment production is required to support the selection of the most beneficial species and conditions for industrial production. The growth and pigment production (i.e., chlorophyll a and C-phycocyanin) of three ...
Synthesis of purine-based ionic liquids and their applications
Carreira, Ana R. F.; Veloso, Telma; Schaeffer, Nicolas; Pereira, Joana L.; Ventura, Sónia P. M.; Rizzi, Cécile; Plénet, Juliette Sirieix; Passos, HelenaBio-based ionic liquids (ILs) are being increasingly sought after, as they are more sustainable and eco-friendly. Purines are the most widely distributed, naturally occurring N-heterocycles, but their low water-solubility limits their application. In this work, four purines (theobromine, theophylline, xanthine, and uric acid) were combined with the cation tetrabutylammonium to synthesize bio-based ILs. The phys...
Blue is not enough: biological activities of C-phycocyanin extracts from Anabae...
Macário, Inês PE; Veloso, Telma; Fernandes, Andreia PM; Martins, Margarida; Dias, Tânia R; Oliveira, Helena; Gonçalves, Fernando JM; Ventura, Sónia PMBACKGROUND: Natural products are currently in the spotlight due to the increasing awareness of consumers. Among these products is phycocyanin (C-PC), a blue colorant that can be extracted from cyanobacteria – a poorly explored feedstock – and applied in several fields, due to its argued health benefits. Arthropira (previously called Spirulina) is the major source of C-PC nowadays, but within the scope of pursui...