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Lara-Bernal A, Silva MGDA, Mota L, Marín E, Cordeiro TC, Silva ECDA, Viana DA, Vargas H, Polidoro JC, Mello-Monte MBDE. Characterization of Cuban and Brazilian natural zeolites by photoacoustic spectroscopy and electron paramagnetic resonance. AN ACAD BRAS CIENC 2022; 94:e20200512. [PMID: 35107514 DOI: 10.1590/0001-3765202120200512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 08/10/2020] [Indexed: 11/21/2022] Open
Abstract
This report describes the photoacoustic and electron paramagnetic resonance investigations of Brazilian and Cuban zeolites. Photoacoustic optical absorption measurements indicate the presence of iron (Fe3+) ions with their respective transition bands for both zeolites. Two species of manganese (Mn2+ and Mn3+) were identified in the Cuban sample and the electronic transitions assigned. Iron and manganese ions were confirmed through nonradiative relaxation (τ) and characteristic diffusion (τβ) times evaluation, whose values were found to be τBRA = 5.40 ms, τCUB = 4.60 ms, τβBRA = 387 μs and τβCUB = 305 μs. Crystal field (Dq-BRA/Dq-CUB = 1048 cm-1/945 cm-1) plus Racah (B-BRA/B-CUB = 457 cm-1/813 cm-1 and C-BRA/C-CUB = 3655 cm-1/2496 cm-1) parameters were assessed as well. Paramagnetic resonance corroborated Fe3+ ions present in the Brazilian zeolite occupying sites showing axial and/or rhombic symmetry distortions. For the Cuban sample, results reveal the characteristic hyperfine sextet lines of Mn2+ overlapping the Fe3+ line. Values of Landé factor and isotropic hyperfine splitting constant were found to be 2.0 and 9.7 mT, respectively. This tells us that the Mn2+ lies in octahedral symmetry probably replacing calcium ions and point towards an ionic bonding character of the Mn2+ and its surroundings.
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Affiliation(s)
- Arlem Lara-Bernal
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Instituto Politécnico Nacional, Legaria, 694, 11500 Colonia Irrigación, Mexico, D.F., Mexico
| | - Marcelo G DA Silva
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Avenida Alberto Lamego, 2000, 28013-602 Parque Califórnia, Campos dos Goytacazes, RJ, Brazil
| | - Leonardo Mota
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Avenida Alberto Lamego, 2000, 28013-602 Parque Califórnia, Campos dos Goytacazes, RJ, Brazil
| | - Ernesto Marín
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Instituto Politécnico Nacional, Legaria, 694, 11500 Colonia Irrigación, Mexico, D.F., Mexico
| | - Thallis C Cordeiro
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Avenida Alberto Lamego, 2000, 28013-602 Parque Califórnia, Campos dos Goytacazes, RJ, Brazil
| | - Edson C DA Silva
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Avenida Alberto Lamego, 2000, 28013-602 Parque Califórnia, Campos dos Goytacazes, RJ, Brazil
| | - Daniel A Viana
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Avenida Alberto Lamego, 2000, 28013-602 Parque Califórnia, Campos dos Goytacazes, RJ, Brazil
| | - Helion Vargas
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Avenida Alberto Lamego, 2000, 28013-602 Parque Califórnia, Campos dos Goytacazes, RJ, Brazil
| | - José Carlos Polidoro
- Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA-Solos), Rua Jardim Botânico, 1024, 22460-000 Jardim Botânico, RJ, Brazil
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Camilotti JG, Somer A, Costa GF, Ribeiro MA, Bonardi C, Cruz GK, Gómez SL, Beltrame FL, Medina AN, Sato F, Astrath NGC, Novatski A. The phase-resolved photoacoustic method to indicate chemical assignments of paracetamol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 121:719-723. [PMID: 24374885 DOI: 10.1016/j.saa.2013.11.099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 11/11/2013] [Accepted: 11/17/2013] [Indexed: 06/03/2023]
Abstract
In this work, the phase-resolved photoacoustic method was applied to provide specific information on the chemical assignments of paracetamol in the near-infrared region. Two broad bands, centered at 1370 and 1130 nm, were well-resolved using this method, making it possible to assign the peaks centered at 1398, 1355 and 1295 nm to a C-H combination from a CH3 structure and the peak at 1305 nm to a C-H combination from the aromatic ring. This information represents a new finding in chemical studies regarding this medicament.
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Affiliation(s)
- J G Camilotti
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748,CEP 84030-900 Ponta Grossa, PR, Brazil
| | - A Somer
- Departamento de Física, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748, CEP 84030-900 Ponta Grossa, PR, Brazil
| | - G F Costa
- Departamento de Física, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748, CEP 84030-900 Ponta Grossa, PR, Brazil
| | - M A Ribeiro
- Departamento de Física, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748, CEP 84030-900 Ponta Grossa, PR, Brazil
| | - C Bonardi
- Departamento de Física, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748, CEP 84030-900 Ponta Grossa, PR, Brazil
| | - G K Cruz
- Departamento de Física, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748, CEP 84030-900 Ponta Grossa, PR, Brazil
| | - S L Gómez
- Departamento de Física, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748, CEP 84030-900 Ponta Grossa, PR, Brazil
| | - F L Beltrame
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748,CEP 84030-900 Ponta Grossa, PR, Brazil
| | - A N Medina
- Departamento de Física, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 Maringá, PR, Brazil
| | - F Sato
- Departamento de Física, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 Maringá, PR, Brazil
| | - N G C Astrath
- Departamento de Física, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 Maringá, PR, Brazil
| | - A Novatski
- Departamento de Física, Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti 4748, CEP 84030-900 Ponta Grossa, PR, Brazil.
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Stolik S, Tomás SA, Ramón-Gallegos E, Sánchez F. Kinetic study of delta-Ala induced porphyrins in mice using photoacoustic and fluorescence spectroscopies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2002; 68:117-22. [PMID: 12468206 DOI: 10.1016/s1011-1344(02)00381-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The production of delta-aminolevulinic acid (ALA)-induced porphyrins in mice skin and blood was studied by photoacoustic and fluorescence spectroscopies. Mice were intraperitoneally administered with 30 mg/kg of ALA. The abdominal skin was subsequently excised at specific times within an 8-h interval and its absorption spectrum obtained by photoacoustics. The highest porphyrins concentration in skin, determined from the optical absorption of the Soret band at 410 nm, was found to occur nearly 2 h after ALA administration, but a first peak was also observed at approximately 15 min. Our hypothesis that the first peak represents the porphyrins content in blood vessels within the skin, whereas the second peak corresponds to porphyrins production in skin tissue, was confirmed by analysing the evolution of protoporphyrin IX content in plasma extracted intracardiacally. By finally applying phase resolved photoacoustic spectroscopy, we were able to evaluate the mean depth at which porphyrins are generated.
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Affiliation(s)
- Suren Stolik
- Departamento de Física, Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear-CITMA, Calle 30 No. 502, Miramar, Playa, Ciudad de la Habana, Cuba.
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Mansanares AM, Baesso ML, Gandra FC, Vargas H, Miranda LC. Photoacoustic and ESR studies of iron-doped soda-lime glasses: Thermal diffusivity. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:7912-7915. [PMID: 9991221 DOI: 10.1103/physrevb.40.7912] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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