David J.S. Patinha

Universidade Nova de Lisboa

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Isabel M. Marrucho

University of Lisbon

Armando J. D. Silvestre

University of Aveiro

Liliana C. Tomé

University of Coimbra

Carmen S. R. Freire

University of Aveiro

Luís Paulo N. Rebelo

Universidade Nova de Lisboa

Pothanagandhi Nellepalli

Concordia University

Ana M. Azevedo

University of Lisbon

Helga Garcia

Universidade Nova de Lisboa

M. Raquel Aires‐Barros

Institute for Biotechnology and Bioengineering

Carlos M. Silva

University of Aveiro

Cooperative Institutions

University of Lisbon

Universidade Nova de Lisboa

University of Aveiro

Instituto de Biologia Experimental e Tecnológica

Rede de Química e Tecnologia

Instituto de Tecnología Química

Instituto Politécnico de Lisboa

Institute for Biotechnology and Bioengineering

Universidade do Porto

Instituto Superior Técnico

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Ionic liquids based aqueous biphasic systems: Effect of the alkyl chains in the cation versus in the anion

The Journal of Chemical Thermodynamics (2013)

David J.S. Patinha Filipa Alves Luís Paulo N. Rebelo Isabel M. Marrucho

C4mim

10.1016/j.jct.2013.05.043

Cite

Citations (20)

EUCALYPTUS BIOMASS RESIDUES FROM AGRO-FOREST AND PULPING INDUSTRIES AS SOURCES OF HIGH-VALUE TRITERPENIC COMPOUNDS

Rui M. A. Domingues David J.S. Patinha G.D.A. Sousa Juan José Villaverde Carlos M. Silva

A comparative study on the triterpenic acids composition of the outer barks of several Eucalyptus species (E. globulus, E. grandis, E. urograndis, E. maidenii and E. nitens) is reported. The contents of the main triterpenic acids identified in the five species varied between 4.5 g/kg in E. urograndis and 21.6 g/kg in E. nitens. It has been observed that, out of these Eucalyptus species outer barks, those from temperate and Mediterranean zones, namely E. nitens and E. globulus, are richer in triterpenic acids than the species from sub-tropical and tropical regions. Furthermore, E. globulus outer bark is clearly the richest in ursane acids, while E. nitens outer bark is the richest in oleanane and lupane acids.

Eucalyptus nitens

Eucalyptus globulus

Myrtaceae

Source

Cite

Citations (37)

CO2 separation applying ionic liquid mixtures: the effect of mixing different anions on gas permeation through supported ionic liquid membranes

RSC Advances (2013)

Liliana C. Tomé David J.S. Patinha Carmen S. R. Freire Luís Paulo N. Rebelo Isabel M. Marrucho

In order to increase flexibility in tailoring the permeability and selectivity of supported ionic liquid membranes (SILMs) for flue gas separation and natural gas purification, this work explores the use of ionic liquid mixtures. For that purpose, gas permeation properties of CO2, CH4 and N2 in several binary ionic liquid mixtures based on a common cation ([C2mim]+) and different anions such as bis(trifluoromethylsulfonyl)imide ([NTf2]−), acetate ([Ac]−), lactate ([Lac]−), dicyanamide ([DCA]−) and thiocyanate ([SCN]−) were measured at 293 K using a time-lag apparatus. In addition to gas permeation results, the thermophysical properties of those mixtures, namely viscosity and density, were also determined so that trends between the two types of properties could be evaluated. The results show that mixing [Ac]− or [Lac]− with [NTf2]− promotes the decrease of gas permeability and diffusivity of the SILMs based on those binary mixtures, essentially due to their high viscosities. The pure ionic liquids containing anions with nitrile groups, [DCA]− or [SCN]−, and also their mixtures with [C2mim][NTf2] exhibit permselectivities ranging from 19.1 to 23.0 for CO2/CH4, and from 36.6 to 67.8 for CO2/N2, as a consequence of a reduction in the CH4 and N2 permeabilities, respectively. Furthermore, it is shown that mixing anions with different chemical features allows variations in ionic liquid viscosity and molar volume that impact the gas permeation properties of SILMs, offering a clear pathway for the optimization of their CO2 separation performances.

Dicyanamide

Thiocyanate

10.1039/c3ra41269e

Cite

Citations (89)

M13 bacteriophage purification using poly(ionic liquids) as alternative separation matrices

Journal of Chromatography A (2017)

Maria João Jacinto David J.S. Patinha Isabel M. Marrucho João Gonçalves Richard C. Willson

Downstream processing

Lytic cycle

10.1016/j.chroma.2017.12.005

Cite

Citations (11)

The role of water in cholinium carboxylate ionic liquid’s aqueous solutions

The Journal of Chemical Thermodynamics (2015)

David J.S. Patinha Liliana C. Tomé Helga Garcia Rui Ferreira Cristina Silva Pereira

Carboxylate

Malonate

C4mim

10.1016/j.jct.2014.12.020

Cite

Citations (25)

Poly(ionic liquids) in solid phase microextraction: Recent advances and perspectives

Progress in Polymer Science (2019)

David J.S. Patinha Armando J. D. Silvestre Isabel M. Marrucho

Solid-Phase Microextraction

10.1016/j.progpolymsci.2019.101148

Cite

Citations (50)

Lipophilic extractives from the bark of Eucalyptus grandis x globulus, a rich source of methyl morolate: Selective extraction with supercritical CO2

Industrial Crops and Products (2012)

David J.S. Patinha Rui M. A. Domingues Juan José Villaverde Artur M. S. Silva Carlos M. Silva

Eucalyptus globulus

Supercritical fluid extraction

Betulinic acid

Terpene

10.1016/j.indcrop.2012.06.056

Cite

Citations (36)

Poly(ionic liquid) embedded particles as efficient solid phase microextraction phases of polar and aromatic analytes

Talanta (2019)

David J.S. Patinha Pothanagandhi Nellepalli Kari Vijayakrishna Armando J. D. Silvestre Isabel M. Marrucho

Imide

Solid-Phase Microextraction

10.1016/j.talanta.2019.01.106

Cite

Citations (18)

Expanding the Applicability of Poly(Ionic Liquids) in Solid Phase Microextraction: Pyrrolidinium Coatings

Materials (2017)

David J.S. Patinha Liliana C. Tomé Mehmet Işık David Mecerreyes Armando J. D. Silvestre

Crosslinked pyrrolidinium-based poly(ionic liquids) (Pyrr-PILs) were synthesized through a fast, simple, and solventless photopolymerization scheme, and tested as solid phase microextraction (SPME) sorbents. A series of Pyrr-PILs bearing three different alkyl side chain lengths with two, eight, and fourteen carbons was prepared, characterized, and homogeneously coated on a steel wire by using a very simple procedure. The resulting coatings showed a high thermal stability, with decomposition temperatures above 350 °C, excellent film stability, and lifetime of over 100 injections. The performance of these PIL-based SPME fibers was evaluated using a mixture of eleven organic compounds with different molar volumes and chemical functionalities (alcohols, ketones, and monoterpenes). The Pyrr-PIL fibers were obtained as dense film coatings, with 67 μm thickness, with an overall sorption increase of 90% and 55% as compared to commercial fibers of Polyacrylate (85 μm) (PA85) and Polydimethylsiloxane (7 μm) (PDMS7) coatings, respectively. A urine sample doped with the sample mixture was used to study the matrix effect and establish relative recoveries, which ranged from 60.2% to 104.1%.

Solid-Phase Microextraction

Polydimethylsiloxane

Thermal Stability

10.3390/ma10091094

Cite

Citations (16)

Screening polymeric ionic liquids for chromatography-based purification of bacteriophage M13

Separation and Purification Technology (2020)

Maria João Jacinto Alexandra Wagner Inês M. Sá David J.S. Patinha Isabel M. Marrucho

Ion chromatography

Biomolecule

Matrix (chemical analysis)

10.1016/j.seppur.2020.117906

Cite

Citations (3)