1
|
Neves MC, Pereira P, Pedro AQ, Martins JC, Trindade T, Queiroz JA, Freire MG, Sousa F. Improved ionic-liquid-functionalized macroporous supports able to purify nucleic acids in one step. Mater Today Bio 2020; 8:100086. [PMID: 33319188 PMCID: PMC7723793 DOI: 10.1016/j.mtbio.2020.100086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/28/2020] [Accepted: 11/02/2020] [Indexed: 11/16/2022] Open
Abstract
Nucleic acids are relevant biopolymers in therapy and diagnosis, for which their purity and biological activity are of crucial relevance. However, these features are difficult to achieve by cost-effective methods. Herein, we report the functionalization of a macroporous chromatographic support functionalized with an ionic liquid (IL) with remarkable performance to purify nucleic acids. An initial screening with distinct IL chemical structures supported in silica was carried out, allowing to identify the IL 1-methyl-3-propylimidazolium chloride as the most promising ligand. A chromatographic macroporous matrix able to be used in preparative liquid chromatography was then functionalized and binding/elution studies were performed. The IL 1-methyl-3-propylimidazolium chloride acts as a multimodal ligand with a remarkable dynamic binding capacity. This macroporous support allows the (one-step) purification of nucleic acids, namely small RNAs, ribosomal RNA, and genomic DNA, from a bacterial lysate, and can be regenerated and reused without compromising its separation performance.
Collapse
Affiliation(s)
- M C Neves
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - P Pereira
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - A Q Pedro
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - J C Martins
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - T Trindade
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - J A Queiroz
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - M G Freire
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - F Sousa
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| |
Collapse
|
2
|
Freire MG, Schweigmann NJ, Svagelj WS, Loetti MV, Jensen O, Burroni NE. Relationship between environmental conditions and host-seeking activity of Ochlerotatus albifasciatus (Diptera: Culicidae) in an agroecosystem and in an urban area in Chubut, Central Patagonia, Argentina. J NAT HIST 2016. [DOI: 10.1080/00222933.2016.1145271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- M. G. Freire
- Grupo de Estudio de Mosquitos, Departamento de Ecología, Genética y Evolución, Instituto IEGEBA (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - N. J. Schweigmann
- Grupo de Estudio de Mosquitos, Departamento de Ecología, Genética y Evolución, Instituto IEGEBA (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - W. S. Svagelj
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Instituto de Investigaciones Marinas y Costeras (CONICET-UNMdP), Universidad Nacional de Mar del Plata, Mar del Plata, Buenos Aires, Argentina
| | - M. V Loetti
- Grupo de Estudio de Mosquitos, Departamento de Ecología, Genética y Evolución, Instituto IEGEBA (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - O. Jensen
- Departamento de Zooartroponosis, Ministerio de Salud, Provincia de Chubut, Argentina
| | - N. E. Burroni
- Grupo de Estudio de Mosquitos, Departamento de Ecología, Genética y Evolución, Instituto IEGEBA (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| |
Collapse
|
3
|
Vieira NSM, Luís A, Reis PM, Carvalho PJ, Lopes-da-Silva JA, Esperança JMSS, Araújo JMM, Rebelo LPN, Freire MG, Pereiro AB. Fluorination effects on the thermodynamic, thermophysical and surface properties of ionic liquids. J Chem Thermodyn 2016; 97:354-361. [PMID: 27642190 PMCID: PMC5024757 DOI: 10.1016/j.jct.2016.02.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper reports the thermal, thermodynamic, thermophysical and surface properties of eight ionic liquids with fluorinated alkyl side chain lengths equal or greater than four carbon atoms. Melting and decomposition temperatures were determined together with experimental densities, surface tensions, refractive indices, dynamic viscosities and ionic conductivities in a temperature interval ranging from 293.15 to 353.15 K. The surface properties of these fluorinated ionic liquids were discussed and several thermodynamic functions, as well as critical temperatures, were estimated. Coefficients of isobaric thermal expansion, molecular volumes and free volume effects were calculated from experimental values of density and refractive index and compared with previous data. Finally, Walden plots were used to evaluate the ionicity of the investigated ionic liquids.
Collapse
Affiliation(s)
- N. S. M. Vieira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - A. Luís
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - P. M. Reis
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - P. J. Carvalho
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - J. A. Lopes-da-Silva
- QOPNA Unit, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - J. M. S. S. Esperança
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - J. M. M. Araújo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - L. P. N. Rebelo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - M. G. Freire
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - A. B. Pereiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| |
Collapse
|
4
|
Oliveira MB, Domínguez-Pérez M, Freire MG, Llovell F, Cabeza O, Lopes-da-Silva JA, Vega LF, Coutinho JAP. Surface Tension of Binary Mixtures of 1-Alkyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide Ionic Liquids: Experimental Measurements and Soft-SAFT Modeling. J Phys Chem B 2012; 116:12133-41. [DOI: 10.1021/jp3059905] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. B. Oliveira
- Chemistry Department, CICECO& QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - M. Domínguez-Pérez
- Mesturas Group, Departamento
de Física, Facultade de Ciencias, Universidade da Coruña, 15008 A Coruña, Spain
| | - M. G. Freire
- Chemistry Department, CICECO& QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - F. Llovell
- MATGAS Research Center (Carburos Metálicos/Air Products, CSIC, UAB),
Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - O. Cabeza
- Mesturas Group, Departamento
de Física, Facultade de Ciencias, Universidade da Coruña, 15008 A Coruña, Spain
| | - J. A. Lopes-da-Silva
- Chemistry Department, CICECO& QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - L. F. Vega
- MATGAS Research Center (Carburos Metálicos/Air Products, CSIC, UAB),
Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Carburos Metálicos/Air Products Group, C/Aragón, 300, 08069 Barcelona,
Spain
| | - J. A. P. Coutinho
- Chemistry Department, CICECO& QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| |
Collapse
|
5
|
Freire MG, Machado OL, Smolka MB, Marangoni S, Novello JC, Macedo ML. Isolation and characterization of isolectins from Talisia esculenta seeds. J Protein Chem 2001; 20:495-500. [PMID: 11760124 DOI: 10.1023/a:1012510614429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Four isolectins (TEL-I, TEL-II, TEL-III and TEL-IV) were isolated from seeds of Talisia esculenta by reverse-phase high-performance liquid chromatography. RP-HPLC was performed on a u-Bondapack C18 column (0.78 cm x 30 cm) (Waters 991-PDA system) at room temperature. Rechromatography of the four fractions on a C18 column under the same conditions yielded lectins with two dissimilar subunits (Mr 20 kDa and 40 kDa) bound noncovalently. The isolectins showed very similar characteristics, such as molecular masses, N-terminal sequences, and hemagglutinating activity, but differed in their isoelectric points and in inhibition by carbohydrates.
Collapse
Affiliation(s)
- M G Freire
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas (Unicamp), SP, Brazil
| | | | | | | | | | | |
Collapse
|