1
|
Ye Y, Li Y, Wang J, Yuan S, Xu X, Zhang X, Zhou J, Wang B, Ma X. Generation of Environmentally Persistent Free Radicals on Metal-Organic Frameworks. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3265-3275. [PMID: 35245423 DOI: 10.1021/acs.langmuir.1c03491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Environmentally persistent free radicals (EPFRs) have been recognized as one of the important emerging contaminants with biological toxicity, environmental persistence, and global mobility. Previous studies have identified the catalytic role of surface metal oxides in EPFRs formation and illustrated the metal-dependence of EPFRs by studying on various metal oxide nanoparticles and single crystals. However, there is still lack of an understanding on the formation of EPFRs from the point of view of metal sites. Various factors (e.g., crystalline phases and surface species) of metal oxides are regarded to contribute to the generation of EPFRs, which present profound difficulties for scientists to tease apart the impact of metal type. Herein, a laboratory investigation, in terms of the acidity and oxidation strength of metal cations, was conducted by selecting metal-variable isostructural metal-organic frameworks as material platforms. Specifically, we evaluated EPFRs generation on MIL-100(M) (M = Al, Cr, Fe) from chlorine-substituted phenol vapor and catechol under thermal conditions. It is found that high Lewis acidity of metal sites is crucial for capturing the above two phenolic precursors, activating the O-H bond and promoting EPFRs formation. Radical species with half-life as long as 70 days were generated on MIL-100 rich in 5-fold coordinated Al3+ sites. The unpaired electron spin density donation was further confirmed by using 27Al solid-state nuclear magnetic resonance spectroscopy. Despite their higher oxidation power than Al3+, the exposed Cr3+ and Fe3+ sites show undetectable catalytic activity for the formation of EPFRs, because of their insufficient Lewis acidity. Our results suggest that the surface species rather than Lewis acid sites may be a major contributor to the formation of EPFRs on metal oxides like Fe2O3.
Collapse
Affiliation(s)
- Yuqing Ye
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Yuan Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jie Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Shuai Yuan
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Xiaojun Xu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Xinning Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Junwen Zhou
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Bo Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Xiaojie Ma
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| |
Collapse
|
2
|
Vazquez-Lima H, Arroyo Abad U, Pérez Benítez A, Ramírez Rosales D, Zamorano Ulloa R, Reyes Ortega Y, Hernández Anzaldo S. Synthesis, Kinetic Study, and Spectroscopic Analysis of Peroxidase-like Pinch-Porphyrin Fe(III) Complexes. ACS OMEGA 2019; 4:22521-22529. [PMID: 31909335 PMCID: PMC6941391 DOI: 10.1021/acsomega.9b03186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
In the present manuscript, we report the kinetic and spectroscopic analysis of six new pinch-porphyrins: protoporphyrin-picpenta 1, mesoporphyrin-picpenta 2, deuteroporphyrin-picpenta 3, protoporphyrin-picocta 4, mesoporphyrin-picocta 5, and deuteroporphyrin-picocta 6. The Michaelis-Menten enzymatic pathway and the guaiacol test confirmed the ability of the compounds to function like new peroxidase models. UV-vis, 1H NMR, and electron spin resonance studies are in accordance with porphyrin-Fe(III) molecules with the quantum phenomena called quantum mixed spin (qms, s = 3/2, s = 5/2). Importantly, the influence of the presence of the s = 3/2 spin state in the compounds and its critical role for the catalytic capacity is proven here, which was the original hypothesis in our research group. The compounds with higher populations of the s = 3/2 spin state have increased peroxidase activity.
Collapse
Affiliation(s)
- Hugo Vazquez-Lima
- Centro
de Química Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edificio IC9, Ciudad Universitaria,
Col. Jardines de San Manuel, Puebla Pue. 72570, Mexico
| | - Uriel Arroyo Abad
- Centro
de Química Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edificio IC9, Ciudad Universitaria,
Col. Jardines de San Manuel, Puebla Pue. 72570, Mexico
| | - Aarón Pérez Benítez
- Facultad
de Ciencias Químicas, Benemérita
Universidad Autónoma de Puebla, Edificio FCQ9, Ciudad Universitaria, Col. Jardines
de San Manuel, Puebla Pue. 72570, Mexico
| | - Daniel Ramírez Rosales
- Instituto
Politécnico Nacional, ESFM, Ave. Instituto Politécnico
Nacional S/N, Edif. 9 U.P. Zacatenco, Col. San Pedro Zacatenco, México City 07738, Mexico
| | - Rafael Zamorano Ulloa
- Instituto
Politécnico Nacional, ESFM, Ave. Instituto Politécnico
Nacional S/N, Edif. 9 U.P. Zacatenco, Col. San Pedro Zacatenco, México City 07738, Mexico
| | - Yasmi Reyes Ortega
- Centro
de Química Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edificio IC9, Ciudad Universitaria,
Col. Jardines de San Manuel, Puebla Pue. 72570, Mexico
| | - Samuel Hernández Anzaldo
- Centro
de Química Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edificio IC9, Ciudad Universitaria,
Col. Jardines de San Manuel, Puebla Pue. 72570, Mexico
| |
Collapse
|
3
|
|
4
|
Alzate-Cardona JD, Barrero-Moreno MC, Restrepo-Parra E. Critical and compensation behavior of a mixed spin-5/2 and spin-3/2 Ising antiferromagnetic system in a core/shell nanowire. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:445801. [PMID: 28869214 DOI: 10.1088/1361-648x/aa8a06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, Monte Carlo simulations based on metropolis algorithm were performed to study the critical and compensation temperatures of a core-shell nanowire with spins [Formula: see text] and [Formula: see text], respectively, considering an Ising antiferromagnetic system. The influence of nearest neighbors exchange interactions and crystal field anisotropy on the critical and compensation behaviors of the system has been analyzed. The effects of the nanowire height in the critical and compensation temperatures were evaluated. The results show that, for a system with given values of exchange interaction constants and crystal field anisotropy, a compensation point only appears if two requirements are satisfied. First, the weight of the core magnetization in the total magnetization must be greater than the weight of the shell magnetization at zero temperature. And second, the exchange constant of shell ions must be greater than a certain value. This value is, at the same time, greater than the exchange constant of core ions. The critical and compensation temperatures are very sensitive to variations in the exchange constant of the shell ions and core ions, respectively, while the crystal field anisotropy affects both temperatures.
Collapse
Affiliation(s)
- J D Alzate-Cardona
- Departamento de Física y Química, Universidad Nacional de Colombia, Sede Manizales, A.A. 127 Manizales, Colombia
| | | | | |
Collapse
|
5
|
Spectroscopic and Kinetic Characterization of Peroxidase-Like π-Cation Radical Pinch-Porphyrin-Iron(III) Reaction Intermediate Models of Peroxidase Enzymes. Molecules 2016; 21:molecules21070804. [PMID: 27355940 PMCID: PMC6273987 DOI: 10.3390/molecules21070804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/01/2016] [Accepted: 06/13/2016] [Indexed: 11/17/2022] Open
Abstract
The spectroscopic and kinetic characterization of two intermediates from the H₂O₂ oxidation of three dimethyl ester [(proto), (meso), (deuteroporphyrinato) (picdien)]Fe(III) complexes ([FePPPic], [FeMPPic] and [FeDPPic], respectively) pinch-porphyrin peroxidase enzyme models, with s = 5/2 and 3/2 Fe(III) quantum mixed spin (qms) ground states is described herein. The kinetic study by UV/Vis at λmax = 465 nm showed two different types of kinetics during the oxidation process in the guaiacol test for peroxidases (1-3 + guaiacol + H₂O₂ → oxidation guaiacol products). The first intermediate was observed during the first 24 s of the reaction. When the reaction conditions were changed to higher concentration of pinch-porphyrins and hydrogen peroxide only one type of kinetics was observed. Next, the reaction was performed only between pinch-porphyrins-Fe(III) and H₂O₂, resulting in only two types of kinetics that were developed during the first 0-4 s. After this time a self-oxidation process was observed. Our hypotheses state that the formation of the π-cation radicals, reaction intermediates of the pinch-porphyrin-Fe(III) family with the ligand picdien [N,N'-bis-pyridin-2-ylmethyl-propane-1,3-diamine], occurred with unique kinetics that are different from the overall process and was involved in the oxidation pathway. UV-Vis, ¹H-NMR and ESR spectra confirmed the formation of such intermediates. The results in this paper highlight the link between different spectroscopic techniques that positively depict the kinetic traits of artificial compounds with enzyme-like activity.
Collapse
|
6
|
Hernández-Anzaldo S, Sánchez-Morales N, Zamorano-Ulloa R, Escudero R, de Jesús Rosales Hoz M, Reyes-Ortega Y. ESR and magnetic studies of octahedral [Fe(III)(Cl)(pcd)(H2O)(DMSO)] (pcd=pyridine-2,6-dicarboxylato) compound showing Fe(III) species with different spin states in solution. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
7
|
De la Espriella N, Buendía GM. Magnetic behavior of a mixed Ising 3/2 and 5/2 spin model. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2011; 23:176003. [PMID: 21493970 DOI: 10.1088/0953-8984/23/17/176003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We perform Monte Carlo simulations in order to study the magnetic properties of the mixed spin-S = ± 3/2, ± 1/2 and spin-σ = ± 5/2, ± 3/2, ± 1/2 Ising model. The spins are alternated on a square lattice such that S and σ are nearest neighbors. We found that when the Hamiltonian includes antiferromagnetic interactions between the S and σ spins, ferromagnetic interactions between the spins S, and a crystal field, the system presents compensation temperatures in a certain range of the parameters. The compensation temperatures are temperatures below the critical point where the total magnetization is zero, and they have important technological applications. We calculate the finite-temperature phase diagrams of the system. We found that the existence of compensation temperatures depends on the strength of the ferromagnetic interaction between the S spins.
Collapse
Affiliation(s)
- N De la Espriella
- Department of Physics, Universidad Simón Bolívar, Caracas 1080, Venezuela
| | | |
Collapse
|
8
|
Hernández-Lemus E. Biological physics in México: Review and new challenges. J Biol Phys 2011; 37:167-84. [PMID: 22379227 PMCID: PMC3047202 DOI: 10.1007/s10867-011-9218-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Accepted: 01/12/2011] [Indexed: 12/12/2022] Open
Abstract
Biological and physical sciences possess a long-standing tradition of cooperativity as separate but related subfields of science. For some time, this cooperativity has been limited by their obvious differences in methods and views. Biological physics has recently experienced a kind of revival (or better a rebirth) due to the growth of molecular research on animate matter. New avenues for research have been opened for both theoretical and experimental physicists. Nevertheless, in order to better travel for such paths, the contemporary biological physicist should be armed with a set of specialized tools and methods but also with a new attitude toward multidisciplinarity. In this review article, we intend to somehow summarize what has been done in the past (in particular, as an example we will take a closer look at the Mexican case), to show some examples of fruitful investigations in the biological physics area and also to set a proposal of new curricula for physics students and professionals interested in applying their science to get a better understanding of the physical basis of biological function.
Collapse
Affiliation(s)
- Enrique Hernández-Lemus
- Departamento de Genómica Computacional, Instituto Nacional de Medicina Genómica, Periférico Sur No. 4124, Torre Zafiro 2, Piso 6 Col. Ex Rancho de Anzaldo, Álvaro Obregón 01900 México, D.F., México
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, Torre de Ingeniería, Piso 6 Circuito Escolar s/n Ciudad Universitaria, Coyoacán, 04510 México, D.F., México
| |
Collapse
|
9
|
Droghetti E, Howes BD, Feis A, Dominici P, Fittipaldi M, Smulevich G. The quantum mechanically mixed-spin state in a non-symbiotic plant hemoglobin: The effect of distal mutation on AHb1 from Arabidopsis thaliana. J Inorg Biochem 2007; 101:1812-9. [PMID: 17686524 DOI: 10.1016/j.jinorgbio.2007.06.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Revised: 05/29/2007] [Accepted: 06/21/2007] [Indexed: 10/23/2022]
Abstract
Non-symbiotic hemoglobins are hexacoordinated heme proteins found in all plants. To gain insight into the importance of the heme hexacoordination and the coordinated distal histidine in general for the possible physiological functions of these proteins, the distal His(E7) of Arabidopsis thaliana hemoglobin (AHb1) was substituted by a leucine residue. The heme properties of the wild-type and mutant proteins have been characterized by electronic absorption, resonance Raman and electron paramagnetic resonance spectroscopic studies at room and low temperatures. Significant differences between the wild-type and mutant proteins have been detected. The most striking is the formation of an uncommon quantum mechanically mixed-spin heme species in the mutant. This is the first observation of such a spin state in a plant hemoglobin. The proportion of this species, which at room temperature coexists with a minor pentacoordinated high-spin form, increases markedly at low temperature.
Collapse
Affiliation(s)
- Enrica Droghetti
- Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy
| | | | | | | | | | | |
Collapse
|