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Cagnin Pereira T, Cardoso LP, da Silva de Paiva W, Santos de Camargos L, Cristina Rodrigues-Lisoni F, Redondo Martins A. Analysis of metabolic compounds and antitumorigenic effects of Albizia niopoides and Senegalia polyphylla leaves. Nat Prod Res 2024:1-8. [PMID: 38530002 DOI: 10.1080/14786419.2024.2331603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 03/10/2024] [Indexed: 03/27/2024]
Abstract
The objective of this study was to quantify metabolic compounds in leaves of A. niopoides and S. polyphylla and to evaluate the antitumor potential of extracts from both species in cervical tumour cells. The physiological analyses performed were quantification of starch, sucrose, phenolic compounds and proteins. An aqueous extract was prepared and added to the SiHa cell line at concentrations of 10, 100 and 1000 μg/mL at 4h, 24h, 48h and 72h. Cell morphology, proliferation and viability were analysed. The species showed a large amount of starch and phenolic compounds. Treatment with the extract of both species caused morphological changes in SiHa cells and exhibited antiproliferative effects at a concentration of 1000 µg/ml. In cell viability test, only A. niopoides showed a significant reduction. The study presented the effects of the species against a cervical cancer cell line, where A. niopoides has already shown to be a promising plant drug.
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Affiliation(s)
- Thalissa Cagnin Pereira
- Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Engenharia (Feis), Ilha Solteira, SP, Brazil
| | - Luana Pereira Cardoso
- Department of Biological Sciences, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas (Ibilce), São José do Rio Preto, SP, Brazil
| | - Wesller da Silva de Paiva
- Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Engenharia (Feis), Ilha Solteira, SP, Brazil
| | - Liliane Santos de Camargos
- Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Engenharia (Feis), Ilha Solteira, SP, Brazil
| | - Flávia Cristina Rodrigues-Lisoni
- Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Engenharia (Feis), Ilha Solteira, SP, Brazil
- Department of Biological Sciences, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas (Ibilce), São José do Rio Preto, SP, Brazil
| | - Aline Redondo Martins
- Department of Biology and Animal Science, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Engenharia (Feis), Ilha Solteira, SP, Brazil
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Maia JR, Lima JA, Freire PTC, Melo FEA, de Menezes AS, Remédios CMR, Cardoso LP. High pressure studies on bis(l-histidinate)nickel(II) monohydrate. Spectrochim Acta A Mol Biomol Spectrosc 2018; 189:258-264. [PMID: 28823966 DOI: 10.1016/j.saa.2017.08.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/10/2017] [Accepted: 08/13/2017] [Indexed: 06/07/2023]
Abstract
Raman spectra of bis(l-histidinate)nickel(II) monohydrate crystal were obtained for pressures up to 9.5GPa. Our results show the disappearance of some of the Raman modes and the appearance of other modes. These modifications evidence that the sample undergoes phase transitions at around 0.8 and 3.2GPa. The role played by the Ni ions and hydrogen bonds in the dynamics of the phase transitions is discussed. Under decompression, down to atmospheric pressure, the original Raman spectra are recovered, showing that both phase transitions are fully reversible.
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Affiliation(s)
- J R Maia
- Faculdade de Filosofia Dom Aureliano Mattos, Universidade Estadual do Ceará, CEP 63.900-000 Limoeiro do Norte, CE, Brazil
| | - J A Lima
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60440-970 Fortaleza, CE, Brazil.
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60440-970 Fortaleza, CE, Brazil
| | - F E A Melo
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60440-970 Fortaleza, CE, Brazil
| | - A S de Menezes
- Departamento de Física, CCET, Universidade Federal do Maranhão, Centro Tecnológico, CEP 65085-580 São Luís, MA, Brazil
| | - C M R Remédios
- Instituto de Ciencias Exatas e Naturais, Universidade Federal do Pará, CEP66075-110 Belém, PA, Brazil
| | - L P Cardoso
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, CEP 13083-859 Campinas, SP, Brazil
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Pinheiro GS, Ferreira Júnior MNG, Dos Santos AO, Freire PTC, Lima JA, Nogueira CES, Cardoso LP, Sherwood JN, Remédios CMR. Low-temperature Raman spectra of the 2-(α-methylbenzylamino)-5-nitropyridine crystal. Spectrochim Acta A Mol Biomol Spectrosc 2017; 183:209-217. [PMID: 28454073 DOI: 10.1016/j.saa.2017.04.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 03/25/2017] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
The polar organic 2-(α-methylbenzylamino)-5-nitropyridine crystal (MBANP) has been studied by Raman spectroscopy at low temperatures (from 300 to 10K). The effect of temperature change on the vibrational spectrum is discussed with the aid of DFT calculations. The behavior of the Raman spectra indicates that MBANP molecules present a different conformation at low temperatures associated with the rotation of the phenyl and pyridine rings. Temperature-dependent X-ray measurements and differential scanning calorimetry (DSC) analysis were utilized as complementary techniques to investigate the structural stability of MBANP crystal.
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Affiliation(s)
- G S Pinheiro
- Departamento de Física, Campus Ministro Petrônio Portella, Universidade Federal do Piauí, CEP 64049-550 Teresina, PI, Brazil.
| | - M N G Ferreira Júnior
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 60740-000 Belém, PA, Brazil
| | - A O Dos Santos
- Centro de Ciências Sociais Saúde e Tecnologia, Universidade Federal do Maranhão, CEP 65900-410 Imperatriz, MA, Brazil
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-900 Fortaleza, CE, Brazil
| | - J A Lima
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-900 Fortaleza, CE, Brazil
| | - C E S Nogueira
- Departamento de Física, Universidade Regional do Cariri, CEP 63010-970 Juazeiro do Norte, CE, Brazil
| | - L P Cardoso
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, CEP 13083-859 Campinas, SP, Brazil
| | - J N Sherwood
- WESTCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, Scotland
| | - C M R Remédios
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 60740-000 Belém, PA, Brazil
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de Sousa FF, Freire PTC, de Menezes AS, Pinheiro GS, Cardoso LP, Alcantara P, Moreira SGC, Melo FEA, Mendes Filho J, Saraiva GD. Low-temperature phase transformation studies in the stearic acid: C form. Spectrochim Acta A Mol Biomol Spectrosc 2015; 148:280-288. [PMID: 25909902 DOI: 10.1016/j.saa.2015.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/24/2015] [Accepted: 04/05/2015] [Indexed: 06/04/2023]
Abstract
This paper reports the temperature-dependent measurements in the C form of stearic acid. Raman scattering, X-ray diffraction, and differential scanning calorimetry measurements were performed at low temperatures. The polarized Raman spectra were measured for temperatures ranging from 8 to 300 K over the spectral range of 30-3000 cm(-1). The spectral changes observed in both the lattice vibrational modes and the internal vibrational modes regions of the Raman spectrum, allowed to identify a phase transition undergone by the stearic acid crystal occurring between 210 and 170 K and a change in the structure continues to be observed down to 8 K. The anharmonicity of some vibrational modes and the possible space groups presented by the crystal at low temperatures were also discussed. Low-temperature X-ray diffraction measurements were performed from 290 to 80 K and the results showed slight changes in the lattice parameters at ∼200 K. Furthermore, the evidence of the phase transformation was provided by the differential scanning calorimetry measurements, which identified an enthalpic anomaly at about 160 K.
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Affiliation(s)
- F F de Sousa
- Instituto de Ciências Exatas, Universidade Federal do Sul e Sudeste do Pará, CEP 68507-970 Marabá, PA, Brazil
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, CE, Brazil
| | - A S de Menezes
- Departamento de Física, Universidade Federal do Maranhão, 65080-040 São Luis, MA, Brazil
| | - G S Pinheiro
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, CE, Brazil; Departamento de Física, Campus Ministro Petrônio Portella, Universidade Federal do Piauí, CEP 64049-550 Teresina, PI, Brazil
| | - L P Cardoso
- Institutode Física Gleb Wataghin, Universidade Estadual de Campinas, CEP 13083-859 Campinas, SP, Brazil
| | - P Alcantara
- Faculdadede Física, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
| | - S G C Moreira
- Faculdadede Física, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
| | - F E A Melo
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, CE, Brazil
| | - J Mendes Filho
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, CE, Brazil
| | - G D Saraiva
- Faculdadede Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63900-000 Quixadá, CE, Brazil.
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dos Reis RD, da Silva LM, dos Santos AO, Medina AMN, Cardoso LP, Gandra FG. Study of the magnetocaloric properties of the antiferromagnetic compounds RGa2 (R = Ce, Pr, Nd, Dy, Ho and Er). J Phys Condens Matter 2010; 22:486002. [PMID: 21406760 DOI: 10.1088/0953-8984/22/48/486002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Magnetocaloric properties of antiferromagnetic RGa(2) (R = Ce, Pr, Nd, Dy, Ho and Er) compounds have been reported. These systems present an antiferromagnetic transition below 15 K and a field induced metamagnetic transition from the antiferromagnetic to ferromagnetic state. Our results show that the character of the magnetic field induced transition along the series affects the magnetocaloric properties. For the compounds with R = Ho, Dy and Er both negative and positive magnetocaloric effect (MCE) were observed above μ(0)ΔH = 2 T where the rate between negative and positive MCE contributions depends on how the magnetic transitions occur in these compounds. The evaluated values of maximum magnetocaloric properties of RGa(2) compounds are similar to other potential magnetic refrigerant materials reported in the literature.
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Affiliation(s)
- R D dos Reis
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas-UNICAMP, Campinas, SP, Brazil
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da Silva LM, Dos Santos AO, Medina AN, Coelho AA, Cardoso LP, Gandra FG. A study of pressure and chemical substitution effects on the magnetocaloric properties of the ferromagnetic compound UGa(2). J Phys Condens Matter 2009; 21:276001. [PMID: 21828503 DOI: 10.1088/0953-8984/21/27/276001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report on pressure effects on the magnetic and magnetocaloric properties of the compound UGa(2). Using a mean field approximation, we were able to calculate the isothermal entropy change and the adiabatic temperature change. Neither the applied pressure nor the chemical substitution experiments within the ranges studied revealed a remarkable improvement on the magnetocaloric effect (MCE) except for the Al substitutions. Nevertheless, we found that mechanical pressure and chemical pressure are equivalent in terms of the Curie temperature shift when Al, Ge and Si are substituted for Ga, but a different behavior is found when Ni, Fe and Co are used. Our results also show that a composite to operate between 80 and 120 K can be obtained using different concentrations of U(Ga,Ni)(2).
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Affiliation(s)
- L M da Silva
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas-UNICAMP, 13083-970, Campinas, SP, Brazil. Centro de Ciências Sociais, Saúde e Tecnologia (CCSST), Universidade Federal do Maranhão-UFMA, R. Urbano Santos, s/n, 65900-000, Imperatriz, MA, Brazil
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Lai X, Ma CY, Roberts KJ, Cardoso LP, dos Santos AO, Bogg D, Miller MC. An instrument for combining x-ray multiple diffraction and x-ray topographic imaging for examining crystal microcrystallography and perfection. Rev Sci Instrum 2009; 80:033705. [PMID: 19334925 DOI: 10.1063/1.3103571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Diffraction imaging using x-ray topography (XRT) and x-ray multiple diffraction (XRMD) provide valuable tools for examining the growth defects in crystals and the distributions from ideal lattice symmetry (microcrystallography). The topographic x-ray multiple diffraction microprobe (TMDM) combines the complementary aspects of both techniques enabling XRT and XRMD studies within the same instrument providing a useful resource for the structural characterization of materials that are not very stable in vacuum and electron beam environments. The design of the TMDM instrument is described together with data taken on GaAs (001) and potassium dihydrogen phosphate (001).
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Affiliation(s)
- X Lai
- Institute of Particle Science and Engineering, School of Process, Environmental and Materials Engineering, The University of Leeds, Leeds LS2 9JT, United Kingdom
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