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A short-term exposure to saxitoxin triggers a multitude of deleterious effects ...
Pinto, Albano; Macário, Inês P. E.; Marques, Sérgio M.; Lourenço, Joana; Domingues, Inês; Botelho, Maria João; Asselman, Jana; Pereira, PatríciaHarmful algal blooms and the toxins produced during these events are a human and environmental health concern worldwide. Saxitoxin and its derivatives are potent natural aquatic neurotoxins produced by certain freshwater cyanobacteria and marine algae species during these bloom events. Saxitoxins effects on human health are well studied, however its effects on aquatic biota are still largely unexplored. This wo...
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...
Uncovering the Use of Fucoxanthin and Phycobiliproteins into Solid Matrices to ...
Dias, Lília M. S.; Kovaleski, Gabriela; Fu, Lianshe; Dias, Tânia R.; Macário, Inês P. E.; Correia, Sandra F. H.; Pereira, Joana L.; Coutinho, João A. P.In the search for a better and brighter future, the use of natural luminescent renewable materials as substitutes for synthetic ones in the energy field is of prime importance. The incorporation of natural pigments (e.g., xanthophylls and phycobiliproteins) is a fundamental step in a broad spectrum of applications that are presently marred by their limited stability. The incorporation of bio-based luminescent m...
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 ...
Enhanced dissolution of chitin using acidic deep eutectic solvents: a sustainab...
Bisht, Meena; Macário, Inês P. E.; Neves, Márcia C.; Pereira, Joana L.; Pandey, Siddharth; Rogers, Robin D.; Coutinho, João A. P.; Ventura, Sónia P. M.Chitin is a natural biomass resource with high potential for a wide variety of applications. However, it remains poorly explored because of its solubility issues. In this work, a large range of acidic deep eutectic solvents (aDESs), combining different hydrogen bond acceptors [betaine (Bet), urea (U), and cholinium chloride (CC)] and hydrogen bond donors [formic acid (FA), acetic acid (AA) propanoic acid (PA), ...