Rita Craveiro

Rita Craveiro
Universidade NOVA de Lisboa | NOVA · LAQV@REQUIMTE

PhD Sustainable Chemistry

About

28
Publications
28,562
Reads
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2,636
Citations
Additional affiliations
July 2016 - present
REQUIMTE
Position
  • PostDoc Position
February 2015 - present
Universidade NOVA de Lisboa
Position
  • Researcher
February 2014 - July 2015
Universidade NOVA de Lisboa
Position
  • PhD Student
Education
February 2014 - July 2015
Universidade NOVA de Lisboa
Field of study
  • Sustainable Chemistry
September 2009 - November 2010
University of Aveiro
Field of study
  • Chemistry
September 2001 - April 2008
University of Coimbra
Field of study
  • Chemistry

Publications

Publications (28)
Article
Full-text available
Today, environmental conservation is one of the most urgent targets [...]
Article
Full-text available
Biopolymers such as chitosan (CHT) or alginate (ALG) are among the most prominent for health-related applications due to their broad bioactivity. Their combination for the preparation of membranes is hereby proposed as an application for wound healing with the incorporation of lavender essential oil (LEO), widely known for its antioxidant and antim...
Article
This work is the first proof-of-concept of the use of carbonic anhydrase (CA) enzyme from microalgae biomass, extracted with deep eutectic systems (DES), with the goal of engineering a solution that will lead to a breakthrough in the Carbon Capture and Utilization (CCU) strategy. Three distinct microalgae were processed – Tisochrysis lutea, Chlorel...
Article
Full-text available
Rosemary ( Rosmarinus officinalis ) is a natural source of bioactive compounds that have high antioxidant activity. It has been in use as a medicinal herb since ancient times, and it currently is in widespread use due to its inherent pharmacological and therapeutic potential, in the pharmaceutical, food, and cosmetic industries. Natural deep eutect...
Article
Deep Eutectic Systems (DESs) are an emerging class of green solvents with a myriad of applications, from biotechnology to material science. The high viscosity of most DESs is an obstacle that can be circumvented by the addition of water. But how much water is too much water? There is a need to understand the effect of water in the organizational dy...
Article
Full-text available
In this work, we propose the utilization of scCO2 to impregnate ibuprofen into the mcl-PHA matrix produced by Pseudomonas chlororaphis subs. aurantiaca (DSM 19603). The biopolymer has adhesive properties, is biocompatible and has a melting temperature of 45 °C. Several conditions, namely, pressure (15 and 20 MPa) and impregnation time (30 min, 1 h...
Article
Full-text available
Natural deep eutectic systems (NADES), which have applications as solvents for both engineering and life sciences, are mainly composed of sugars, aminoacids or organic acids. In this work NADES composed by glucose, urea and proline (G:U:P in a molar ratio of 1:1:1) and proline and glucose (P:G 5:3) were prepared and added in different mass fraction...
Article
Lignocellulosic biomass is a renewable and sustainable feedstock, mainly composed of cellulose, hemicellulose, and lignin. Lignin, as the most abundant natural aromatic polymer occurring on Earth, has great potential to produce value-added products. However, the isolation of highly pure lignin from biomass requires the use of efficient methods duri...
Article
Deep eutectic mixtures (DES) have been proposed in the last years as viable and more sustainable solvents, in a myriad of applications. CO2 capture or adsorption is one of those possible applications, where DES can act as an alternative to the amine-based solvents that are currently being used in carbon capture and sequestration (CCS) processes. In...
Preprint
Full-text available
Tungsten is a critical raw material for European and U.S. economies. Tungsten mine residues, usually considered an environmental burden due to e.g. arsenic content, are also secondary tungsten resources. The electrodialytic (ED) process and deep eutectic solvents (DES) have been successfully and independently applied for the extraction of metals fr...
Article
Tungsten is a critical raw material for European and U.S. economies. Tungsten mine residues, usually considered an environmental burden due to e.g. arsenic content, are also secondary tungsten resources. The electrodialytic (ED) process and deep eutectic solvents (DES) have been successfully and independently applied for the extraction of metals fr...
Chapter
The role of deep eutectic solvents in Nature is nowadays an intriguing field of knowledge, attracting attention of a myriad of researchers from different fields. Fundamental studies in biochemistry, plant physiology, metabolomics, or chemistry aim to understand the role of these systems in living organism, to engineers looking for solutions to tech...
Article
Enzymatic esterification is an effective route that can contibute for the separation of racemic (rac) mixtures, and is thus of great importance for the pharmaceutical, food and cosmetic industries. All the processes involved in this methodology should be environmentally friendly, biocompatible, fast and cost effective. The use of deep eutectic solv...
Article
Natural deep eutectic systems (NADES) are mostly composed of natural primary metabolites such as sugars, sugar alcohols, organic acids, amino acids and amines. These simple molecules have been identified in animals living in environments with extreme temperature amplitudes, being responsible for their survival at negative temperatures during winter...
Article
Full-text available
Recent findings have reported the reason why some living beings are able to withstand the huge thermal amplitudes between winter and summer in their natural habitats. They are able to produce metabolites decreasing deeply the crystallization temperature of water, avoiding cell disrupture due to the presence of ice crystals and overcoming osmotic ef...
Article
Supercritical carbon dioxide has been used as a green solvent due to their well-known potential in biomaterials impregnation. The versatility of this technique enables the loading of implants with Active Pharmaceutical Ingredients which present several benefits when compared with traditional techniques to impregnate active compounds. In this review...
Article
In this work we report a new way of producing wrinkled soft Janus spheres by using scCO(2). The wrinkles appear in one of the half-hemispheres by the asymmetric UV irradiation of the particles followed by an anisotropic scCO(2) swelling. This treatment allows the fabrication of banded as well as sinusoidal packed wrinkles in the irradiated spheres...
Article
Deep eutectic solvents (DES) can be formed by bioactive compounds or pharmaceutical ingredients. A therapeutic DES (THEDES) based on ibuprofen, a non-steroidal anti-inflammatory drug (NSAID), and menthol was synthesized and its thermal behavior was analyzed by differential scanning calorimetry (DSC). A controlled drug delivery system was developed...
Article
Significance Natural deep eutectic solvents (NADES) are defined as a mixture of two or more solid or liquid components, which at a particular composition present a high melting point depression becoming liquids at room temperature. NADES are constituted by natural molecules and fully represent the green chemistry principles. For these reasons, the...
Article
Full-text available
In this work, blends of starch and poly-ε-caprolactone (PCL) doped with different concentrations of 1-butyl-3-methylimidazolium acetate ([BMIM]Ac) or 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) were studied. The blends were characterized by mechanical analysis, infra-red spectroscopy (FTIR), differential scanning calorimetry (DSC) and dielectri...
Article
Full-text available
Green technology actively seeks new solvents to replace common organic solvents that present inherent toxicity and have high volatility, leading to evaporation of volatile organic compounds to the atmosphere. Over the past two decades, ionic liquids (ILs) have gained enormous attention from the scientific community, and the number of reported artic...
Article
Some approaches have been developed in our group to investigate the role of novel ionic liquids as process and property modifiers of natural-based polymers. In our previous work, we proposed the use of ionic liquids as plasticizing agents for the creation of porous structures from a semi-crystalline natural-based polymer. The current work intended...

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