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Born on 8 of July of 1989 at Viana do Castelo, Portugal, Helena Passos obtained her MSc degree in Chemical Engineering from University of Aveiro, Portugal, in 2012. During her graduation Passos was awarded with a research grant and in the last year of the MSc studies joined to the Process and Product Applied Thermodynamics (PATh) research group, where she developed her MSc thesis within the topic "Extraction of bioactive compounds with ionic liquid aqueous solutions”. Helena Passos is currently a PhD research fellow in Chemical Engineering at the University of Aveiro, Portugal, working on the development of new extractive platforms for the extraction and separation of bioactive compounds using a new class of solvents, the ionic liquids.
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Passos, H; Luis, A; Coutinho, JAP; Freire, MG (2016) Thermoreversible (Ionic-Liquid-Based) Aqueous Biphasic Systems.
SCIENTIFIC REPORTS, 6,
DOI: 10.1038/srep20276
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Batista, MLS; Passos, H; Henriques, BJM; Maginn, EJ; Pinho, SP; Freire, MG; Gomes, JRB; Coutinho, JAP (2016) Why are some cyano-based ionic liquids better glucose solvents than water?.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 18, 28, 18958-18970.
DOI: 10.1039/c6cp02538b
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Passos, H; Tavares, DJP; Ferreira, AM; Freire, MG; Coutinho, JAP (2016) Are Aqueous Biphasic Systems Composed of Deep Eutectic Solvents Ternary or Quaternary Systems?.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 4, 5, 2881-2886.
DOI: 10.1021/acssuschemeng.6b00485
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Soares, B; Passos, H; Freire, CSR; Coutinho, JAP; Silvestre, AJD; Freire, MG (2016) Ionic liquids in chromatographic and electrophoretic techniques: toward additional improvements in the separation of natural compounds.
GREEN CHEMISTRY, 18, 17, 4582-4604.
DOI: 10.1039/c6gc01778a
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Dinis, TBV; Passos, H; Lima, DLD; Esteves, VI; Coutinho, JAP; Freire, MG (2015) One-step extraction and concentration of estrogens for an adequate monitoring of wastewater using ionic-liquid-based aqueous biphasic systems.
GREEN CHEMISTRY, 17, 4, 2570-2579.
DOI: 10.1039/c5gc00077g
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Quental, MV; Passos, H; Kurnia, KA; Coutinho, JAP; Freire, MG (2015) Aqueous Biphasic Systems Composed of Ionic Liquids and Acetate-Based Salts: Phase Diagrams, Densities, and Viscosities.
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 60, 6, 1674-1682.
DOI: 10.1021/je501044u
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Luis, A; Dinis, TBV; Passos, H; Taha, M; Freire, MG (2015) Good's buffers as novel phase-forming components of ionic-liquid-based aqueous biphasic systems.
BIOCHEMICAL ENGINEERING JOURNAL, 101, 142-149.
DOI: 10.1016/j.bej.2015.05.008
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Passos, H; Freire, MG; Coutinho, JAP (2014) Ionic liquid solutions as extractive solvents for value-added compounds from biomass.
GREEN CHEMISTRY, 16, 12, 4786-4815.
DOI: 10.1039/c4gc00236a
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Passos, H; Khan, I; Mutelet, F; Oliveira, MB; Carvalho, PJ; Santos, LMNBF; Held, C; Sadowski, G; Freire, MG; Coutinho, JAP (2014) Vapor-Liquid Equilibria of Water plus Alkylimidazolium-Based Ionic Liquids: Measurements and Perturbed-Chain Statistical Associating Fluid Theory Modeling.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 53, 9, 3737-3748.
DOI: 10.1021/ie4041093
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Almeida, MR; Passos, H; Pereira, MM; Lima, AS; Coutinho, JAP; Freire, MG (2014) Ionic liquids as additives to enhance the extraction of antioxidants in aqueous two-phase systems.
SEPARATION AND PURIFICATION TECHNOLOGY, 128, 1-10.
DOI: 10.1016/j.seppur.2014.03.004
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Passos, H; Trindade, MP; Vaz, TSM; da Costa, LP; Freire, MG; Coutinho, JAP (2013) The impact of self-aggregation on the extraction of biomolecules in ionic-liquid-based aqueous two-phase systems.
SEPARATION AND PURIFICATION TECHNOLOGY, 108, 174-180.
DOI: 10.1016/j.seppur.2013.02.008
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Almeida, HFD; Passos, H; Lopes-da-Silva, JA; Fernandes, AM; Freire, MG; Coutinho, JAP (2012) Thermophysical Properties of Five Acetate-Based Ionic Liquids.
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 57, 11, 3005-3013.
DOI: 10.1021/je300487n
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Passos, H; Ferreira, AR; Claudio, AFM; Coutinho, JAP; Freire, MG (2012) Characterization of aqueous biphasic systems composed of ionic liquids and a citrate-based biodegradable salt.
BIOCHEMICAL ENGINEERING JOURNAL, 67, 68-76.
DOI: 10.1016/j.bej.2012.05.004
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Passos, H; Sousa, ACA; Pastorinho, MR; Nogueira, AJA; Rebelo, LPN; Coutinho, JAP; Freire, MG (2012) Ionic-liquid-based aqueous biphasic systems for improved detection of bisphenol A in human fluids.
ANALYTICAL METHODS, 4, 9, 2664-2667.
DOI: 10.1039/c2ay25536g
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Thermoreversible ABS: towards novel separation processes
