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Valadez-Renteria E, Perez-Carrasco C, Medina-Velazquez DY, Rodriguez-Gonzalez V, Oliva J. Efficient removal of the recalcitrant metamizole contaminant from drinking water by using a CaLaCoO 9 perovskite supported on recycled polyethylene. J Environ Sci (China) 2024; 136:56-67. [PMID: 37923465 DOI: 10.1016/j.jes.2022.09.039] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/20/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2023]
Abstract
Metamizole (MZ) is a widely used anti-inflammatory drug. Due to its common use, this contaminant is found in sewage and rivers. In order to reduce the contamination produced by the MZ, we fabricated in this work a photocatalytic composite using recycled polyethylene (RPE) and the CaLaCoO9 (LCCO) perovskite. Those nanoparticles had a microplate-like morphology and sizes of 1.4-5.5 µm according to the analysis of microscopy. The photocatalytic properties of the LCCO powders were evaluated under ultraviolet-visible (UV-Vis) irradiation and found a removal efficiency of 96%. When the RPE+LCCO composite was employed for the photocatalytic degradation of MZ, a maximum degradation of 92.5% was obtained. The influence of the pH on the photocatalytic activity was also studied and found that an initial pH = 3 produced a total degradation of MZ after 240 min of UV-Vis irradiation. Moreover, three reuse cycles were carried out for the pure LCCO powders and for the RPE+LCCO composites and found that the maximum loss of degradation was 5%. Furthermore, scavenger experiments demonstrated that the super oxide and hydroxyl radicals are formed during the photocatalytic reaction and were responsible for the degradation of MZ. Additionally, the X-ray photoelectron-spectroscopy and Raman analysis demonstrated the formation of defects (oxygen vacancies), those ones delayed the electron-hole recombination, which in turn, enhanced the degradation of the MZ. Thus, the studies performed in this work proved that composites made with recycled plastics and LCCO perovskites are a low-cost and feasible alternative for the cleaning of water sources polluted with pharmaceutical compounds.
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Affiliation(s)
- Ernesto Valadez-Renteria
- CONACYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, SLP 78216, México
| | - Christian Perez-Carrasco
- División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana Azcapotzalco, Col. Reynosa-Tamaulipas, C.P., México, DF 02200, México
| | - Dulce Yolotzin Medina-Velazquez
- División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana Azcapotzalco, Col. Reynosa-Tamaulipas, C.P., México, DF 02200, México.
| | - Vicente Rodriguez-Gonzalez
- CONACYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, SLP 78216, México
| | - Jorge Oliva
- CONACYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, SLP 78216, México.
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Valadez-Renteria E, Oliva J, Oliva AI, Ruiz-Gomez MA, Encinas A, Rodriguez-Gonzalez V. A solar evaporator fabricated from corncob waste for the desalination of seawater and removal of oil/herbicides from contaminated water. Chemosphere 2024; 350:141030. [PMID: 38154668 DOI: 10.1016/j.chemosphere.2023.141030] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/16/2023] [Accepted: 12/22/2023] [Indexed: 12/30/2023]
Abstract
Corncob (CC) based solar evaporators were employed to desalinize seawater brought from the Vallarta coast in Mexico. The pure CC produced an evaporation-rate and evaporation-efficiency of 0.63 kg m-2 h-1 and 38.4%, respectively, under natural solar light. Later, the CC was coated with carbonized CC (CCCE evaporator) or was coated with graphene (CCGE evaporator). Those evaporators were used for the desalination of seawater and obtained higher evaporation rates of 1.59-1.67 kg m-2 h-1, and higher evaporation efficiencies of 92-94% (under natural solar light). The desalination experiments were repeated under artificial solar light and the evaporation-rates/evaporation-efficiencies slightly decreased to 1.43-1.52 kg m-2 h-1/88-92%. The surface analysis of the evaporators by FTIR, XPS and Raman revealed that the CCGE evaporator had on its surface a lower content of defects and a higher amount of OH groups than the CCCE evaporator. Therefore, the CCGE evaporator had higher evaporation-rates/evaporation-efficiencies in comparison with the CCCE evaporator. Furthermore, we purified water contaminated with three different herbicides (fomesafen, 2-6 dichlorobenzamide and 4-chlorophenol at 30 ppm) by evaporation and using natural solar light. Interestingly, the CCCE and CCGE evaporators also removed the herbicides by physical adsorption with efficiencies of 12-22.5%. Moreover, the CCGE evaporator removed vegetable oil from contaminated water by adsorption and its maximum adsorption capacity was 1.72 g/g. Overall, our results demonstrated that the corncob-based evaporators studied here are a low-cost alternative to obtain clean water under natural solar light and this one was more effective for the desalination of seawater than the artificial sunlight (Xe lamp).
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Affiliation(s)
- E Valadez-Renteria
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico; Tecnológico Nacional de México/ITS Zacatecas Occidente, Sombrerete, Zacatecas, 99100, Mexico
| | - J Oliva
- Centro de Física Aplicada y Tecnología avanzada, Universidad Nacional Autónoma de México, Juriquilla Querétaro, 76230, Mexico.
| | - A I Oliva
- Cinvestav IPN, Unidad Mérida, Depto. de Física Aplicada, A.P. 73-Cordemex, 97310, Mérida, Yucatán, 97310, Mexico
| | - M A Ruiz-Gomez
- CONAHCYT-Departamento de Física Aplicada, CINVESTAV-IPN, Mérida, Yucatán, 97310, Mexico
| | - A Encinas
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - V Rodriguez-Gonzalez
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
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Córdova-Fraga T, García-Pérez M, Hernández-Rayas A, Gómez-Solís C, Soto-Álvarez JA, Oliva J. Bone samples' behavior in sunlight, IR light, and temperature increase with FEM simulation. Med Biol Eng Comput 2024; 62:225-236. [PMID: 37770813 DOI: 10.1007/s11517-023-02929-5] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 09/05/2023] [Indexed: 09/30/2023]
Abstract
Biological and environmental factors produce biochemical processes that modify the bone structure. A few studies have attempted to show the adverse biological effects of sun radiation. The bone tissue exposures to infrared and sunlight radiation are analyzed by using focused sound, characterization spectroscopy techniques, and image processing. The study is complemented with a finite element method simulation on temperature behaviors. The crystal morphology on the bone hydroxyapatite and functional groups was characterized by X-ray diffraction and infrared spectroscopy. The infrared spectra confirmed the hydroxyl group of bovine hydroxyapatite, amines, and lipids are also correlated with modifications of the hydroxyapatite. The diffractograms showed the characteristic peaks of hydroxyapatite, with the main intensity at 2θ = 32.02°. Bone samples exposed to sun radiation presented a peak at 2θ = 27.5°, evidencing the possible formation of β-TCP y α-TCP. The analysis with the spectroscopy techniques about the structural changes in the samples suggests interpreting an increase of sound obtained by expanding the exposure time. It is possible to verify that there are some structural changes in the bone samples due to exposure to non-ionizing radiation. These results show an increase in the registered intensity sound correlated with the interpretation of the structural changes of bone. Thanks to the different novel analysis techniques established in the present study, it could establish the changes that experienced the bone structure under different sources of radiation, which will help to better detect scenarios of bone deficiency.
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Affiliation(s)
- Teodoro Córdova-Fraga
- Departamento de Ingeniería Física - DCI, Universidad de Guanajuato Campus León Loma del Bosque 103, Lomas del Campestre, 37150, León, GTO, Mexico.
| | - Marysol García-Pérez
- Departamento de Ingeniería Física - DCI, Universidad de Guanajuato Campus León Loma del Bosque 103, Lomas del Campestre, 37150, León, GTO, Mexico
| | - Angélica Hernández-Rayas
- Departamento de Ingeniería Física - DCI, Universidad de Guanajuato Campus León Loma del Bosque 103, Lomas del Campestre, 37150, León, GTO, Mexico
| | - Christian Gómez-Solís
- Departamento de Ingeniería Física - DCI, Universidad de Guanajuato Campus León Loma del Bosque 103, Lomas del Campestre, 37150, León, GTO, Mexico
| | - José Alfredo Soto-Álvarez
- Departamento de Ingeniería Física - DCI, Universidad de Guanajuato Campus León Loma del Bosque 103, Lomas del Campestre, 37150, León, GTO, Mexico
| | - Jorge Oliva
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, 76230, Mexico
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Oliva J, Valle-Garcia LS, Garces L, Oliva AI, Valadez-Renteria E, Hernandez-Bustos DA, Campos-Amador JJ, Gomez-Solis C. Using NIR irradiation and magnetic bismuth ferrite microparticles to accelerate the removal of polystyrene microparticles from the drinking water. J Environ Manage 2023; 345:118784. [PMID: 37611517 DOI: 10.1016/j.jenvman.2023.118784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/17/2023] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 08/25/2023]
Abstract
Magnetic bismuth ferrite (BiFO) microparticles were employed for the first time for the removal of polystyrene (PS) nano/microplastics from the drinking water. BiFO is formed by porous agglomerates with sizes of 5-11 μm, while the PS nano/microparticles have sizes in the range of 70-11000 nm. X-ray diffraction studies demonstrated that the BiFO microparticles are composed of BiFeO3/Bi25FeO40 (the content of Bi25FeO40 is ≈ 8.6%). Drinking water was contaminated with PS nano/microparticles (1 g L-1) and BiFO microparticles were also added to the contaminated water. Later, the mixture of PS-particles + BiFO was irradiated with NIR light (980 nm). Consequently, PS nano/microparticles melted on the BiFO microparticles due to the excessive heating on their surface. At the same time, the NIR (near infrared) light generated oxidizing agents (∙OH and h+), which degraded the by-products formed during the photocatalytic degradation of PS nano/microparticles. Subsequently, the NIR irradiation was stopped, and a Neodymium magnet was utilized to separate the BiFO microparticles from the water. This last procedure also permitted the removal of PS nano/microparticles by physical adsorption. Zeta potential measurements demonstrated that the BiFO surface was positively charged, allowing the removal of the negatively charged PS nano/microparticles by electrostatic attraction. The combination of the photocatalytic process and the physical adsorption permitted a complete removal of PS nano/microparticles after only 90 min as well as a high mineralization of by-products (≈95.5% as confirmed by the total organic carbon measurements). We estimate that ≈23.6% of the PS nano/microparticles were eliminated by photocatalysis and the rest of PS particles (≈76.4%) by physical adsorption. An outstanding adsorption capacity of 195.5 mg g-1 was obtained after the magnetic separation of the BiFO microparticles from the water. Hence, the results of this research demonstrated that using photocatalysis + physical-adsorption is a feasible strategy to quickly remove microplastic contaminants from the water.
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Affiliation(s)
- J Oliva
- CONAHCYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - L S Valle-Garcia
- División de Ciencias e Ingenierías, Universidad de Guanajuato, León 37150, Mexico
| | - L Garces
- CONAHCYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - A I Oliva
- Cinvestav IPN, Unidad Mérida, Depto. de Física Aplicada, A.P. 73-Cordemex, 97310, Mérida, Yucatán, 97310, Mexico
| | - E Valadez-Renteria
- CONAHCYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - D A Hernandez-Bustos
- División de Ciencias e Ingenierías, Universidad de Guanajuato, León 37150, Mexico
| | - J J Campos-Amador
- División de Ciencias e Ingenierías, Universidad de Guanajuato, León 37150, Mexico
| | - C Gomez-Solis
- División de Ciencias e Ingenierías, Universidad de Guanajuato, León 37150, Mexico.
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Esquivel-Castro TA, Oliva J, Rodríguez-González V, Rosu HC. Immobilized mesoporous materials for carvacrol delivery to the germination and early growth of tomato plants (Solanum Lycopersicum). Environ Res 2023; 228:115860. [PMID: 37030405 DOI: 10.1016/j.envres.2023.115860] [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: 10/19/2022] [Revised: 03/14/2023] [Accepted: 04/05/2023] [Indexed: 05/16/2023]
Abstract
The immobilization of TiO2-SiO2 (TSO) materials on seed mats stands as a practical way to help the germination and early growth of tomato plants (Solanum Lycopersicum). Mesoporous materials are functionalized with triethanolamine (TEA) and loaded with the biocide molecule of carvacrol (CAR). The effect of CAR on the parameters of germination percentage, germination time, root, shoot length, and chlorophyll content of seeds and/or tomato seedlings are investigated. The germination experiments were carried out using seed mats coated with the TSO materials, also TSO powdered materials were put directly on the tomato seeds to study their effect on germination. Direct deposition of TSO composites achieved the complete germination and longer shoots due to the cooperative interactions among nanomaterials, carvacrol, and the tomato seed. However, the handling of the seeds and the detrimental effect of powder in the germination system made difficult the application with agricultural purposes. The plastic seed mats provide a practical system with lower germination, but more homogenous growth of root/shoot is possible. Surprisingly, in this methodology the carvacrol presents a detrimental effect on germination due to less interaction with the seeds. The handling of seeds and recover of the nanomaterials and its reuse are advantages of the plastic seed mats, which together with less wastage of seeds suggest a potential use in agriculture. The as-synthetized TSO NPs, together with the functionalization of triethanolamine and carvacrol used to promote the health germination of the seeds, allows the control of the time for seed germination, germination %, and length for the root/shoot of seed tomato germination. The immobilization of mesoporous materials results in an alternative to help the germination and early growth of agricultural plants searching to avoid the lixiviation of nanomaterials to the environment.
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Affiliation(s)
- Tzipatly A Esquivel-Castro
- Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), División de Materiales Avanzados, Camino a la presa San José 2055, Col. Lomas 4a sección, 78216, San Luis Potosí, SLP, Mexico
| | - Jorge Oliva
- Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), División de Materiales Avanzados, Camino a la presa San José 2055, Col. Lomas 4a sección, 78216, San Luis Potosí, SLP, Mexico
| | - Vicente Rodríguez-González
- Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), División de Materiales Avanzados, Camino a la presa San José 2055, Col. Lomas 4a sección, 78216, San Luis Potosí, SLP, Mexico.
| | - Haret C Rosu
- Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), División de Materiales Avanzados, Camino a la presa San José 2055, Col. Lomas 4a sección, 78216, San Luis Potosí, SLP, Mexico
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Valadez-Renteria E, Perez-Gonzalez R, Gomez-Solis C, Diaz-Torres LA, Encinas A, Oliva J, Rodriguez-Gonzalez V. A novel and stretchable carbon-nanotube/Ni@TiO 2:W photocatalytic composite for the complete removal of diclofenac drug from the drinking water. J Environ Sci (China) 2023; 126:575-589. [PMID: 36503783 DOI: 10.1016/j.jes.2022.05.028] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 06/17/2023]
Abstract
We present the structural, morphological and photocatalytic properties of stretchable composites made with carbon nanotubes (CNTs), silicon rubber and Ni@TiO2:W nanoparticles (TiWNi NPs) with average size of 37 ± 2 nm. Microscopy images showed that the TiWNi NPs decorated the surface of the CNT fibers, which are oriented in a preferential direction. TiWNi NPs presented a mixture of anatase/rutile phases with cubic structure. The performance of the TiWNi powders and stretchable composites was evaluated for the photocatalytic degradation of diclofenac (DCF) anti-inflammatory drug under ultraviolet-visible light. The results revealed that the maximum DCF degradation percentages were 34.6%, 91.9%, 97.1%, 98.5% and 100% for the CNT composite (stretched at 0%), TiWNi powders, CNT + TiWNi (stretched at 0%), CNT + TiWNi (stretched at 50%) and CNT + TiWNi (stretched at 100%), respectively. Thus, stretching the CNT + TiWNi composites was a good strategy to enhance the DCF degradation percentage from 97.1% to 100%, since stretching created additional defects (oxygen vacancies) that acted as electron sink, delaying the electron-hole recombination, and favors the DCF degradation. Raman/absorbance measurements confirmed the presence of such defects. Moreover, the reactive oxygen species (ROS) were determined by the scavenger's experiments and found that the main ROS were the ·OH and O2- radicals, which attacked the DCF molecules, causing their degradation. The results of this investigation confirmed that the stretchable CNT/TiWNi-based composites are a viable alternative to remove pharmaceutical contaminants from water and can be manually separated from the decontaminated water, which is unviable using photocatalytic powders.
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Affiliation(s)
- Ernesto Valadez-Renteria
- Consejo Nacional de Ciencia y Tecnología-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí 78216, México
| | - Rafael Perez-Gonzalez
- Consejo Nacional de Ciencia y Tecnología-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí 78216, México
| | | | - Luis Armando Diaz-Torres
- Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA), Centro de Investigaciones en Óptica, A.C., Lomas Del Campestre, León 37150, México
| | - Armando Encinas
- Consejo Nacional de Ciencia y Tecnología-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí 78216, México
| | - Jorge Oliva
- Consejo Nacional de Ciencia y Tecnología-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí 78216, México.
| | - Vicente Rodriguez-Gonzalez
- Consejo Nacional de Ciencia y Tecnología-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí 78216, México.
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Valadez-Renteria E, Oliva J, Navarro-Garcia N, Rodriguez-Gonzalez V. An eco-friendly cellulose support functionalized with tin titanate nanoparticles for the fast removal of clonazepam drug from the drinking water: adsorption mechanisms. Environ Sci Pollut Res Int 2023; 30:58156-58168. [PMID: 36973629 DOI: 10.1007/s11356-023-26669-z] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 03/23/2023] [Indexed: 05/10/2023]
Abstract
This research studied the performance of tin titanate (SnTiO3, SnT) and cellulose-based composites for the removal of clonazepam (CZP) drug by physical adsorption. The cellulose was extracted from a plant named tithonia tubaeformis, which is considered as weed in the crop fields of Mexico. The analysis by microscopy revealed that the SnTiO3 powders are formed by a mixture of coalesced grains and nanotubes with lengths in the range of 97-633 nm. Furthermore, the X-ray diffraction analysis indicated that the SnT powders present a mixture of cassiterite and rutile phases. Experiments for the CZP removal from drinking water were carried out, and several parameters such as initial drug concentration (1-10 mg/L), amount of SnT adsorbent per liter of contaminated solution (10-50 mg/L), and pH (3-10) were varied in order to study their influence on the CZP removal percentage. Essentially, we found that the SnT dosage of 50 mg/L produced the most efficient and fastest CZP removal, since 94.3% of CZP was removed after only 10 min of reaction. Moreover, a piece of cellulose (Cell) was decorated with 50 mg of SnT powder to form the Cell+SnT composite, and this was able to remove a maximum of 80.5% of CZP after 180 min of reaction. If the amount of SnT powder deposited on the Cell+SnT composite is raised up to 100 mg, the composite can remove 95.5% of CZP. The adsorption capacity was also calculated for the SnT powders and Cell+SnT composite and found that it was 6.3 times higher for the SnT powders. Furthermore, the Raman spectra recorded for the Cell+SnT composites demonstrated the presence of surface defects, which acted as adsorption centers for the CZP molecules. The results of this investigation demonstrate that eco-friendly and low-cost floatable composites can be used for the removal of pharmaceutical contaminants, which is an advantage over adsorbent powders.
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Affiliation(s)
- Ernesto Valadez-Renteria
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México
| | - Jorge Oliva
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México.
| | - Nayeli Navarro-Garcia
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México
| | - Vicente Rodriguez-Gonzalez
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México
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Hernández-Del Castillo PC, Oliva J, Núñez-Luna BP, Rodríguez-González V. Novel polypropylene-TiO 2:Bi spherical floater for the efficient photocatalytic degradation of the recalcitrant 2,4,6-TCP herbicide. J Environ Manage 2023; 329:117057. [PMID: 36549056 DOI: 10.1016/j.jenvman.2022.117057] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/27/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
In this work, spherical photocatalytic floaters were fabricated by depositing TiO2:Bi (TBi) particles on polypropylene (PP) spheres (recycled from beer cans). These particles were deposited on the sphere (TBi-sphere) by the spray coating technique and evaluated their performance for the photocatalytic degradation of 2,4,6-trichlorophenol (2,4,6-TCP) herbicide. SEM images demonstrated that the BTi powders consisted in conglomerated grains with sizes of 20-80 nm and the analysis by X-ray diffraction confirmed the presence of rutile and anatase phases in the BTi. The photocatalytic experiments showed that the TBi and TBi-sphere produced maximum degradation of 90 and 97% for 2,4,6-TCP, respectively, after 4 h under UV-Vis light. The photocatalytic powders/composites were reused 3 times and the loss of degradation efficiency was 3 and 16% for the TBi powder and TBi-sphere, respectively. This means that the TBi-sphere is more stable for the continuous degradation of the 2,4,6-TCP contaminant. The TiO2:Bi powder was compared with the commercial TiO2 (P25) and found that the TiO2:Bi powder had higher light absorption (≈42%) and higher surface area (≈105%) than the P25. Therefore, the degradation percentage for the 2,4,6-TCP was 52% higher in the sample doped with Bi. Also, scavenger experiments were carried out and found that the main oxidizing agents produced for the degradation of 2,4,6-TCP were •OH- radicals and •O2- anions. Other species such as h+ were also produced at lower amount. Hence, our results demonstrated that spherical/floatable photocatalytic composites are a viable option to remove herbicide residuals from the water, which is of interest in water-treatment-plants.
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Affiliation(s)
- P C Hernández-Del Castillo
- CONACYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, Mexico.
| | - J Oliva
- CONACYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, Mexico
| | - B P Núñez-Luna
- CONACYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, Mexico
| | - V Rodríguez-González
- CONACYT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, Mexico.
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Hernández-Del Castillo PC, Oliva J, Robledo-Trujillo G, Rodríguez-González V. Enhancing the eosin-yellowish dye degradation in drinking water by using TiO 2 coatings co-doped with Ni and In. Environ Sci Pollut Res Int 2023; 30:5258-5266. [PMID: 35980526 DOI: 10.1007/s11356-022-22572-1] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
This work reports on the structural, morphological, and photocatalytic properties of titanium dioxide (TiO2) and TiO2:NiIn (T-NiIn) coatings fabricated by spin coating. The SEM images revealed coatings with average thicknesses of 3.59 and 3.37 μm for the TiO2 and T-NiIn, respectively. EDS spectra and Raman studies confirmed the presence of TiO2 co-doped with nickel (Ni) and indium (In) in the coatings. XRD analysis showed the anatase and rutile phases for the TiO2 coatings, while the T-NiIn coatings presented the rutile and brookite phases. These samples were evaluated in the photocatalytic degradation of the eosin-yellowish (EY) dye. The T-NiIn coatings showed 9.1% higher effectiveness than the undoped TiO2 coatings after 300 min under UV irradiation. Meanwhile, the T-NiIn coatings exposed to solar light removed 40% more dye than the TiO2 coatings. Furthermore, T-NiIn coating was the most stable because its effectiveness was reduced by only 1.4% after 4 cycles of reuse. Additionally, the scavenger tests confirmed that the main oxidizing sites were the •OH- radicals and the superoxides •O2-. Thus, the use of coatings based on TiO2 co-doped with Ni and In is a feasible strategy to increase the degradation of the EY dye in drinking water.
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Affiliation(s)
- Pável César Hernández-Del Castillo
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A. C, 78216, San Luis Potosí, SLP, México.
| | - Jorge Oliva
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A. C, 78216, San Luis Potosí, SLP, México
| | - Gabriela Robledo-Trujillo
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A. C, 78216, San Luis Potosí, SLP, México
| | - Vicente Rodríguez-González
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A. C, 78216, San Luis Potosí, SLP, México
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10
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Jung T, Milenković I, Corcobado T, Májek T, Janoušek J, Kudláček1 T, Tomšovský M, Nagy Z, Durán A, Tarigan M, Sanfuentes von Stowasser E, Singh R, Ferreira M, Webber J, Scanu B, Chi N, Thu P, Junaid M, Rosmana A, Baharuddin B, Kuswinanti T, Nasri N, Kageyama K, Hieno A, Masuya H, Uematsu S, Oliva J, Redondo M, Maia C, Matsiakh I, Kramarets V, O’Hanlon R, Tomić Ž, Brasier C, Horta Jung M. Extensive morphological and behavioural diversity among fourteen new and seven described species in Phytophthora Clade 10 and its evolutionary implications. Persoonia 2022; 49:1-57. [PMID: 38234379 PMCID: PMC10792230 DOI: 10.3767/persoonia.2022.49.01] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/13/2022] [Indexed: 01/19/2024]
Abstract
During extensive surveys of global Phytophthora diversity 14 new species detected in natural ecosystems in Chile, Indonesia, USA (Louisiana), Sweden, Ukraine and Vietnam were assigned to Phytophthora major Clade 10 based on a multigene phylogeny of nine nuclear and three mitochondrial gene regions. Clade 10 now comprises three subclades. Subclades 10a and 10b contain species with nonpapillate sporangia, a range of breeding systems and a mainly soil- and waterborne lifestyle. These include the previously described P. afrocarpa, P. gallica and P. intercalaris and eight of the new species: P. ludoviciana, P. procera, P. pseudogallica, P. scandinavica, P. subarctica, P. tenuimura, P. tonkinensis and P. ukrainensis. In contrast, all species in Subclade 10c have papillate sporangia and are self-fertile (or homothallic) with an aerial lifestyle including the known P. boehmeriae, P. gondwanensis, P. kernoviae and P. morindae and the new species P. celebensis, P. chilensis, P. javanensis, P. multiglobulosa, P. pseudochilensis and P. pseudokernoviae. All new Phytophthora species differed from each other and from related species by their unique combinations of morphological characters, breeding systems, cardinal temperatures and growth rates. The biogeography and evolutionary history of Clade 10 are discussed. We propose that the three subclades originated via the early divergence of pre-Gondwanan ancestors > 175 Mya into water- and soilborne and aerially dispersed lineages and subsequently underwent multiple allopatric and sympatric radiations during their global spread. Citation: Jung T, Milenković I, Corcobado T, et al. 2022. Extensive morphological and behavioural diversity among fourteen new and seven described species in Phytophthora Clade 10 and its evolutionary implications. Persoonia 49: 1-57. https://doi.org/10.3767/persoonia.2022.49.01.
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Affiliation(s)
- T. Jung
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
- Phytophthora Research and Consultancy, 83131 Nussdorf, Germany
| | - I. Milenković
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
- University of Belgrade, Faculty of Forestry, 11030 Belgrade, Serbia
| | - T. Corcobado
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
| | - T. Májek
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
| | - J. Janoušek
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
| | - T. Kudláček1
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
| | - M. Tomšovský
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
| | - Z.Á Nagy
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
| | - A. Durán
- University of Belgrade, Faculty of Forestry, 11030 Belgrade, Serbia
- Research and Development, Asia Pacific Resources International Limited (APRIL), 28300 Pangkalan Kerinci, Riau, Indonesia
| | - M. Tarigan
- Research and Development, Asia Pacific Resources International Limited (APRIL), 28300 Pangkalan Kerinci, Riau, Indonesia
| | - E. Sanfuentes von Stowasser
- Laboratorio de Patología Forestal, Facultad Ciencias Forestales y Centro de Biotecnología, Universidad de Concepción, 4030000 Concepción, Chile
| | - R. Singh
- Plant Diagnostic Center, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, Louisiana, USA
| | - M. Ferreira
- Plant Diagnostic Center, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, Louisiana, USA
| | - J.F. Webber
- Forest Research, Alice Holt Lodge, Farnham, Surrey GU10 4LH, UK
| | - B. Scanu
- Department of Agricultural Sciences, University of Sassari, Viale Italia 39A, 07100 Sassari, Italy
| | - N.M. Chi
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 10000 Hanoi, Vietnam
| | - P.Q. Thu
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 10000 Hanoi, Vietnam
| | - M. Junaid
- Department of Plant Pest and Disease, Faculty of Agriculture, Hasanuddin University, Makassar, 90245, South Sulawesi, Indonesia
| | - A. Rosmana
- Department of Plant Pest and Disease, Faculty of Agriculture, Hasanuddin University, Makassar, 90245, South Sulawesi, Indonesia
| | - B. Baharuddin
- Department of Plant Pest and Disease, Faculty of Agriculture, Hasanuddin University, Makassar, 90245, South Sulawesi, Indonesia
| | - T. Kuswinanti
- Department of Plant Pest and Disease, Faculty of Agriculture, Hasanuddin University, Makassar, 90245, South Sulawesi, Indonesia
| | - N. Nasri
- Department of Forest Conservation, Faculty of Forestry, Hasanuddin University, Makassar, 90245, South Sulawesi, Indonesia
| | - K. Kageyama
- River Basin Research Center, Gifu University, Gifu, 501-1193, Japan
| | - A. Hieno
- River Basin Research Center, Gifu University, Gifu, 501-1193, Japan
| | - H. Masuya
- Forestry and Forest Products Research Institute (FFPRI), Tsukuba, Ibaraki, 305-8687, Japan
| | - S. Uematsu
- Laboratory of Molecular and Cellular Biology, Dept. of Bioregulation and Bio-interaction, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - J. Oliva
- Department of Crop and Forest Sciences, University of Lleida, Lleida 25198, Spain
| | - M. Redondo
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden
| | - C. Maia
- Centre of Marine Sciences (CCMAR), University of Algarve, 8005-139 Faro, Portugal
| | - I. Matsiakh
- Ukrainian National Forestry University, Pryrodna st.19, 79057, Lviv, Ukraine
| | - V. Kramarets
- Ukrainian National Forestry University, Pryrodna st.19, 79057, Lviv, Ukraine
| | - R. O’Hanlon
- Department of Agriculture, Food and the Marine, Dublin 2, D02 WK12, Ireland
| | - Ž. Tomić
- Center for Plant Protection, Croatian Agency for Agriculture and Food, 10000 Zagreb, Croatia
| | - C.M. Brasier
- Forest Research, Alice Holt Lodge, Farnham, Surrey GU10 4LH, UK
| | - M. Horta Jung
- Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Protection and Wildlife Management, Phytophthora Research Centre, 613 00 Brno, Czech Republic
- Phytophthora Research and Consultancy, 83131 Nussdorf, Germany
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11
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Valadez-Renteria E, Oliva J, Navarro-Garcia NE, Rodriguez-Gonzalez V. Novel sustainable composites made of car's waste and sodium titanate for the efficient photocatalytic removal of the bromophenol blue dye: study under solar and UV-Vis light. Environ Sci Pollut Res Int 2022; 29:76752-76765. [PMID: 35670940 DOI: 10.1007/s11356-022-21301-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 02/04/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
In this research, W-doped sodium nanotube titanate (NaTNT) nanoparticles were used for the photocatalytic degradation of the bromophenol blue (BPB) dye. The NaTNT powder was mixed with car's tire powder (TP) to enhance its light absorption or was supported on recycled car's air filters (AFs) to facilitate its removal from the cleaned water after the degradation of the BPB. The SEM analysis indicated that the NaTNT nanoparticles and the TP had sizes in the range of 150-325 nm and 8-37 µm, respectively. Both powders were also studied by X-ray diffraction and found that the sodium titanate corresponds to the Na2Ti6O13 with monoclinic phase, while the TP is formed by rubber, silicon, ZnS, and ZnO. The photocatalytic activity of the NaTNT powder was evaluated for the degradation of BPB dye (20 ppm) and obtained a maximum degradation of 95 and 80% under UV-Vis and natural solar light, respectively, after 4 h of irradiation. For the NaTNT + TP composite mixture, the maximum degradation was 87 and 68% under UV-Vis and solar light, respectively. The NaTNT and NaTNT + TP powders were supported on the AFs to form the AF + NaTNT and AF + NaTNT + TP composites. Those ones produced maximum degradation of 86% and 74% (under UV-Vis light), respectively. Besides, several initial pHs were tested for the contaminated water and determined that the maximum degradation of BPB (93-95%) is reached for the pHs of 3 and 7. Reuse experiments (3 cycles) revealed that the diminution of the BPB degradation percentage was 23% and 20% for the NaTNT and NaTNT + TP powders, respectively. Overall, it was demonstrated that the wasted car's air filters can be used as a support for photocatalytic powders, and this combination of AF + powder degrades the BPB with high efficiency.
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Affiliation(s)
- Ernesto Valadez-Renteria
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A.C, 78216, San Luis Potosí, SLP, México
| | - Jorge Oliva
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A.C, 78216, San Luis Potosí, SLP, México
| | - Nayeli E Navarro-Garcia
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A.C, 78216, San Luis Potosí, SLP, México
| | - Vicente Rodriguez-Gonzalez
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica Y Tecnológica A.C, 78216, San Luis Potosí, SLP, México.
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12
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Garces L, Lopez‐Medina M, Padmasree KP, Mtz‐Enriquez AI, Medina‐Velazquez DY, Flores‐Zuñiga H, Oliva J. A Parchment‐Like Supercapacitor Made with Sustainable Graphene Electrodes and its Enhanced Capacitance by Incorporation of the LaSrCoO
3
Perovskite. ChemistrySelect 2022. [DOI: 10.1002/slct.202202199] [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: 11/11/2022]
Affiliation(s)
- Luis Garces
- División de Ciencias Básicas e Ingeniería Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas 02200 Azcapotzalco Ciudad de México México
| | - Margarita Lopez‐Medina
- CONACyT-División de Materiales Avanzados Instituto Potosino de Investigación Científica y Tecnológica A. C. 78216 San Luis Potosí S.L.P. México
| | | | | | - Dulce Yolotzin Medina‐Velazquez
- División de Ciencias Básicas e Ingeniería Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas 02200 Azcapotzalco Ciudad de México México
| | - Horacio Flores‐Zuñiga
- CONACyT-División de Materiales Avanzados Instituto Potosino de Investigación Científica y Tecnológica A. C. 78216 San Luis Potosí S.L.P. México
| | - Jorge Oliva
- CONACyT-División de Materiales Avanzados Instituto Potosino de Investigación Científica y Tecnológica A. C. 78216 San Luis Potosí S.L.P. México
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13
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Hernández-Del Castillo PC, Oliva J, Rodriguez-Gonzalez V. An eco-friendly and sustainable support of agave-fibers functionalized with graphene/TiO2:SnO2 for the photocatalytic degradation of the 2,4-D herbicide from the drinking water. J Environ Manage 2022; 317:115514. [PMID: 35751295 DOI: 10.1016/j.jenvman.2022.115514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 01/29/2022] [Revised: 05/24/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
In this research, we evaluated the photocatalytic performance of biodegradable composites for the removal of the 2,4-Dichlorophenoxyacetic acid (2,4-D) herbicide. The composite was composed by agave fibers (AgF), graphene-microplates (GM) and titanium dioxide TiO2/SnO2 (TSn) nanoparticles (NPs) and was named TSn + AgF/GM. Both, the TSn NPs and the GM were deposited on the AgF using the Dip-coating method. According to the analysis by X-Ray Diffraction (XRD), the crystalline phase for the TiO2 and SnO2 was anatase and tetragonal-rutile, respectively. The Scanning Electron Microscopy (SEM) images demonstrated that the AgF were completely saturated by the GM (which had average dimensions of 15 μm × 22 μm) and by conglomerations of TSn NPs with average size of 642 nm. The TSn NPs and the TSn + AgF/GM composite were evaluated for the photocatalytic degradation of the 2,4-D herbicide under ultraviolet-visible (UV-Vis) light and found a maximum degradation of 98.4 and 93.7% (after 4 h) for the TSn NPs and the TSn + AgF/GM composite, respectively. Reuse cycles were also performed and the degradation percentage decreased by 13.1% and by 7.8% (after 3 cycles of reuse) when the TSn NPs and the TSn + AgF/GM composite are employed, respectively. Scavenger experiments were also carried out and found that the oxidizing agents are mainly produced in the order of: •OH>•O2- > h+; then, the main oxidizing agents generated during the photocatalytic reaction were the hydroxyl radicals. Thus, the photocatalytic system studied in this work for the degradation of 2,4-D could pave the way for the development of new eco-friendly/floatable photocatalysts, which can be applied in wastewater-treatment plants.
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Affiliation(s)
- P C Hernández-Del Castillo
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - J Oliva
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico.
| | - V Rodriguez-Gonzalez
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico.
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14
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Garcia CR, Oliva J, Chavez D, Viesca-Villanueva E, Tejada-Velasquez Y, Mtz-Enriquez AI, Diaz-Torres LA. Using a Novel Sr2CeO4:Ni Photocatalyst for the Degradation of the Recalcitrant Congo Red Dye Under Solar Irradiation. Top Catal 2022. [DOI: 10.1007/s11244-022-01690-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Oliva J, Valadez-Renteria E, Kshetri YK, Encinas A, Lee SW, Rodriguez-Gonzalez V. A sustainable composite of rice-paper/BaMoO 4 nanoparticles for the photocatalytic elimination of the recalcitrant 2,6-dichlorobenzamide (BAM) pesticide in drinking water and its mechanisms of degradation. Environ Sci Pollut Res Int 2022; 29:59915-59929. [PMID: 35397726 DOI: 10.1007/s11356-022-19908-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 01/11/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
This research reports the use of biodegradable and flexible composites for the removal of the 2,6-dichlorobenzamide (BAM) pesticide from drinking water. Rice paper (a biodegradable substrate) and Ag/BaMoO4 (MOBA) nanoparticles were employed to fabricate these composites. The SEM images showed that the MOBA nanoparticles with sizes of 300-800 nm decorated the surface of the biodegradable substrate and formed porous agglomerates, which have sizes of 1-3 μm. The MOBA powders were dispersed in drinking water polluted with BAM and were exposed to 4 h of UV-VIS irradiation, producing a maximum degradation of 82% for the BAM. Moreover, the flexible and biodegradable rice/MOBA composite produced a maximum removal percentage of 95% for the BAM. Also, we studied the effect of pH of the initial solution utilizing both powders and composites. From here, we found that a pH of 10 leads to a complete degradation of BAM after 4h, while a pH of 3 degraded only 37-47% of BAM for the same reaction time. According to the scavenger experiments, the •OH radical and the h+ were the main oxidizing agents for the BAM. Overall, the biodegradable photocatalytic composites are a reliable and a low-cost alternative to eliminate pesticides from the drinking water and can find application in water purification processes.
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Affiliation(s)
- Jorge Oliva
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México.
| | - Ernesto Valadez-Renteria
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México
| | - Yuwaraj K Kshetri
- Department of Environmental and Bio-Chemical Engineering, Sun Moon University, Chungnam, 31460, Republic of Korea
| | - Armando Encinas
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México
| | - Soo Wohn Lee
- Department of Environmental and Bio-Chemical Engineering, Sun Moon University, Chungnam, 31460, Republic of Korea
| | - Vicente Rodriguez-Gonzalez
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, México
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16
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Valadez-Renteria E, Oliva J, Rodriguez-Gonzalez V. A sustainable and green chlorophyll/TiO 2:W composite supported on recycled plastic bottle caps for the complete removal of Rhodamine B contaminant from drinking water. J Environ Manage 2022; 315:115204. [PMID: 35523072 DOI: 10.1016/j.jenvman.2022.115204] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/10/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
This investigation reports the photocatalytic performance of the tungsten doped titania (TiO2:W or TW) with and without coating of chlorophyll (Chl) for the removal of the RhB dye from the drinking water. These particles were also supported on recycled plastic bottle caps (Bcap) to form other photocatalytic composites (TW/Bcap and TW + Chl/Bcap). The SEM images demonstrated that the TW particles without Chl had irregular shapes and sizes of 0.8-12 μm. The TW particles coated by the Chl presented shapes of quasi-rounded grains and smaller particle sizes of 0.8-1.8 μm. The photocatalytyic experiments showed that the photocatalyst powders containing Chl removed completely the RhB dye from the water after 2h under UV-VIS light, while the photocatalyst without Chl removed a maximum of 95% of the RhB. Interestingly, the TW/Bcap and TW + Chl/Bcap composites removed 94-100% of the RhB after 2h. Those ones removed such dye by photocatalysis and by physical adsorption at the same time (as confirmed by the absorbance and FTIR measurements), therefore, the removal of RhB was still very high. Scavenger experiments were also achieved and found that the •OH radicals are the main oxidizing species generated by the photocatalysts with and without Chl. The •O2- radicals and holes (h+) were the secondary oxidizing species. The presence of the chlorophyll on the photocatalyst increased in general the light absorption and the photocurrent. Overall, our work demonstrated that making composites with recycled plastic bottle caps is a feasible alternative to remove dyes from contaminated drinking water with high efficiency and low cost.
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Affiliation(s)
- E Valadez-Renteria
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - J Oliva
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico.
| | - V Rodriguez-Gonzalez
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico.
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17
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Valadez-Renteria E, Oliva J, Rodriguez-Gonzalez V. Photocatalytic materials immobilized on recycled supports and their role in the degradation of water contaminants: A timely review. Sci Total Environ 2022; 807:150820. [PMID: 34627879 DOI: 10.1016/j.scitotenv.2021.150820] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 08/27/2021] [Revised: 10/01/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Global concern about environmental pollution has increased in recent times due to the cumulative harmful impact on the human health occasioned by the diverse toxic substances released into the environment. Water reduced availability for human consumption and its pollution have been paid so much attention due to their relevance in agricultural and industrial activities. In this context, the advanced oxidation processes for removing contaminants from water, more specifically photocatalytic processes, have displayed their usefulness due to features such as easy application, low-cost, harmless effects and sustainable decontamination efficiency. This timely review is centered on worldwide studies, where efforts aimed at employing recycled materials as supports for purification applications such as the removal of different contaminants (dyes, pharmaceutical contaminants, and heavy metals) dissolved in aqueous environments have been reported. Materials like polyethylene terephthalic (PET), polystyrene (PS), disposal textile fabrics, newspapers, aluminum soda cans, rubber, waste electronic and electric components and used batteries have been employed either as supports for immobilizing catalysts or as photocatalysts. The present work offers a discussion of the ways through which photocatalytic composites have been immobilized or produced, employed characterization techniques, removal efficiencies achieved during photocatalytic degradation and possible degradation mechanism of pollutants; not only the highlights of all these studies are discussed, but also paths for future research works that could help improve the reported results are suggested. These new practical tools stand as novel sustainable strategies for the removal of emerging contaminants reusing waste flexible materials.
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Affiliation(s)
- E Valadez-Renteria
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216 San Luis Potosí, SLP, Mexico
| | - J Oliva
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216 San Luis Potosí, SLP, Mexico
| | - V Rodriguez-Gonzalez
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216 San Luis Potosí, SLP, Mexico.
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MENDOZA RICARDO, Oliva J, MTZ-ENRIQUEZ ARTUROISAIAS, Rodríguez González V, Diaz-Castañon S. Recycling diapers’ waste for the fabrication of flexible supercapacitors and the role of the lead ferrite (PbFe11CrO19) to enhance their capacitance. NEW J CHEM 2022. [DOI: 10.1039/d2nj03707f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This work reports the electrochemical performance of sustainable solid-state supercapacitors (SCs) made with cellulose (extracted from diaper waste) and graphene. The SC electrodes were decorated with nanoparticles of PbFe11CrO19 (PbFeCr)...
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Alenad AM, Taha T, Amin MA, Irfan A, Oliva J, Al-Hadeethi Y, Palamanit A, khan M, Hayat A, Kumar Baburao Mane S, Sohail M. Selectivity, stability and reproducibility effect of Uric acid integrated carbon nitride for photocatalytic application. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113591] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Gomez-Solis C, Mendoza R, Rios-Orihuela JF, Robledo-Trujillo G, Diaz-Torres LA, Oliva J, Rodriguez-Gonzalez V. Efficient solar removal of acetaminophen contaminant from water using flexible graphene composites functionalized with Ni@TiO 2:W nanoparticles. J Environ Manage 2021; 290:112665. [PMID: 33892238 DOI: 10.1016/j.jenvman.2021.112665] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 10/20/2020] [Revised: 04/10/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
This work presents the morphological, structural and photocatalytic properties of flexible graphene composites decorated with Ni@TiO2:W nanoparticles (TiNiW NPs) with an average size of 27 ± 2 nm. The TiNiW NPs were immobilized on the surface of a flexible graphene composite using a PVA-based slurry-paste (FG/TiNiW composite). The SEM study showed that the TiNiW NPs remained exposed on the surface of the FG/TiNiW composite, which benefited its photocatalytic activity. The photocatalytic performance for the degradation of acetaminophen (ACT) was evaluated using both the TiNiW powders and the FG/TiNiW composite, obtaining maximum degradation efficiencies of 100 and 86%, respectively, after 3 h under natural solar irradiation. The degradation of ACT was caused mainly by the reactive oxygen species such as OH radicals and h+, which was confirmed by scavenger experiments. Photoluminescence, XPS and absorbance experiments revealed that oxygen vacancy defects were created by i) doping the TiNiW NPs with W and by ii) introducing graphene into the composites. These defects enhanced the absorbance of light in the range of 400-800 nm, which in turn, promoted the photocatalytic degradation of ACT. Moreover, the reuse experiments confirmed that both the TiNiW NPs and FG/TiNiW composite were very stable for the degradation of ACT, since degradation efficiencies >82% were obtained after 4 reuse cycles for both photocatalysts. The experimental findings of this work demonstrate that the flexible TiO2/graphene composites are a feasible option for the removal of pharmaceutical contaminants from water using natural solar irradiation.
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Affiliation(s)
- C Gomez-Solis
- Universidad de Guanajuato, División de Ciencias e Ingenierías, 37150, León, Guanajuato, Mexico
| | - R Mendoza
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - J F Rios-Orihuela
- Universidad de Guanajuato, División de Ciencias e Ingenierías, 37150, León, Guanajuato, Mexico
| | - G Robledo-Trujillo
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico
| | - L A Diaz-Torres
- Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA), Centro de Investigaciones en Óptica, A.C., Lomas Del Bosque115, Lomas Del Campestre, C.P. 37150, León, Guanajuato, Mexico
| | - J Oliva
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico.
| | - V Rodriguez-Gonzalez
- CONACyT-División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico.
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21
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Viesca-Villanueva E, Oliva J, Garcia C, Gomez-Solis C, Diaz-Torres L, Avalos-Belmontes F, Lopez-Badillo C, Enriquez AIM, Garcia-Lobato M. Effect of the urea concentration on the luminescence and photocatalytic properties of Sr2CeO4 powders synthesized by a combustion method. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Garcia CR, Oliva J, Chávez D, Esquivel B, Gómez-Solís C, Martínez-Sánchez E, Mtz-Enriquez AI. Effect of Bismuth Dopant on the Photocatalytic Properties of SrTiO3 Under Solar Irradiation. Top Catal 2020. [DOI: 10.1007/s11244-020-01391-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Andolina JR, Walia R, Oliva J, Baran A, Liesveld J, Becker MW, Busacco A, Coppage M. Non-donor specific anti-human leukocyte antigen (HLA) antibodies are not associated with poor outcome in hematopoietic stem cell transplant recipients. Hum Immunol 2020; 81:407-412. [PMID: 32471661 DOI: 10.1016/j.humimm.2020.05.006] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 11/15/2022]
Abstract
Testing for anti-human leukocyte antigen (HLA) antibodies has now become standard practice in allogeneic hematopoietic stem cell transplantation (HSCT), and anti-HLA antibodies (both donor specific and non-donor specific) are being identified and have many potential consequences. Most studies suggest that donor-specific HLA antibodies lead to adverse outcomes, though little is reported on non-donor specific anti-HLA antibodies. We present the results of a retrospective cohort analysis of 157 patients who received HSCT at the University of Rochester over a period of four years. We identified 45 patients (28.7%) who had detectable anti-HLA antibodies, while only one patient (0.6%) had donor-specific anti-HLA antibodies. Patients with prior pregnancies and multiple transfusions were at increased risk to develop antibodies. In our cohort, the presence of non-donor specific anti-HLA antibodies did not significantly impact overall survival, progression free survival, graft failure, or transplant-related mortality.
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Affiliation(s)
- J R Andolina
- Department of Pediatrics, Golisano Children's Hospital, University of Rochester Medical Center, Rochester, NY, United States.
| | - R Walia
- Department of Pediatrics, Golisano Children's Hospital, University of Rochester Medical Center, Rochester, NY, United States
| | - J Oliva
- Department of Medicine, Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, United States
| | - A Baran
- Department of Medicine, Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, United States
| | - J Liesveld
- Department of Medicine, Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, United States
| | - M W Becker
- Department of Medicine, Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, United States
| | - A Busacco
- Department of Pathology, University of Rochester Medical Center, Rochester, NY, United States
| | - M Coppage
- Department of Pathology, University of Rochester Medical Center, Rochester, NY, United States
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Cámara MA, Cermeño S, Martínez G, Oliva J. Removal residues of pesticides in apricot, peach and orange processed and dietary exposure assessment. Food Chem 2020; 325:126936. [PMID: 32387933 DOI: 10.1016/j.foodchem.2020.126936] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [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: 12/29/2019] [Revised: 03/31/2020] [Accepted: 04/26/2020] [Indexed: 10/24/2022]
Abstract
The effects of the industrial processing are evaluated of the removal of 16 pesticide residues in canned apricots and peaches and in orange juice. A method of multi-residual extraction that uses QuEChERS and liquid chromatography in tandem with triple quadrupole mass spectrometry was used. The method shows good linearity for the 16 pesticides studied (R2 > 0.999); it is accurate and precise (recoveries of 87-115%, relative standard deviation <8.0%). The processing factors are <0.6, indicating that all the processes significantly reduce the residue levels (spinosad, thiacloprid, pyridaben, bupirimate, flusilazole, triflumizole, flonicamid, imidacloprid, lambda-cyhalothrin, cyproconazole, fludioxinil and cyprodinil, abamectin, chlorpyrifos-methyl, hexythiazox and metalaxyl) initially present in the raw fruits and very significantly during washing/cutting, squeezing and hot pack canning (>55% loss). The risk quotient (EDI/ADI ratio) for canned foods is below 100, indicating that the potential consumer risk for the pesticides studied is practically negligent for human health.
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Affiliation(s)
- M A Cámara
- Department of Agricultural Chemistry, Geology and Pedology. Faculty of Chemistry, University of Murcia, Campus Espinardo, 30100 Murcia, Spain.
| | - S Cermeño
- Department of Agricultural Chemistry, Geology and Pedology. Faculty of Chemistry, University of Murcia, Campus Espinardo, 30100 Murcia, Spain
| | - G Martínez
- Department of Agricultural Chemistry, Geology and Pedology. Faculty of Chemistry, University of Murcia, Campus Espinardo, 30100 Murcia, Spain
| | - J Oliva
- Department of Agricultural Chemistry, Geology and Pedology. Faculty of Chemistry, University of Murcia, Campus Espinardo, 30100 Murcia, Spain
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25
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Oliva J, Larque A, Marti C, Bodalo‐Torruella M, Nonell L, Nadal A, Castillo P, Sieira R, Ferrer A, Garcia‐Diez E, Alos L. Oral premalignant lesions of smokers and non‐smokers show similar carcinogenic pathways and outcomes. A clinicopathological and molecular comparative analysis. J Oral Pathol Med 2019; 50:280-286. [DOI: 10.1111/jop.12864] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/04/2019] [Accepted: 04/15/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Jorge Oliva
- Department of Pathology, Hospital Clínic, IDIBAPS University of Barcelona Barcelona Spain
| | - Ana‐Belen Larque
- Department of Pathology, Hospital Clínic, IDIBAPS University of Barcelona Barcelona Spain
| | - Carles Marti
- Department of Maxillofacial Surgery Hospital Clínic Barcelona Spain
| | - Marta Bodalo‐Torruella
- Microarray Analysis Service Institut Hospital del Mar d’InvestigacionsMèdiques (IMIM) Barcelona Spain
| | - Lara Nonell
- Microarray Analysis Service Institut Hospital del Mar d’InvestigacionsMèdiques (IMIM) Barcelona Spain
| | - Alfons Nadal
- Department of Pathology, Hospital Clínic, IDIBAPS University of Barcelona Barcelona Spain
| | - Paola Castillo
- Department of Pathology, Hospital Clínic, IDIBAPS University of Barcelona Barcelona Spain
| | - Ramón Sieira
- Department of Maxillofacial Surgery Hospital Clínic Barcelona Spain
| | - Ada Ferrer
- Department of Maxillofacial Surgery Hospital Clínic Barcelona Spain
| | - Eloy Garcia‐Diez
- Department of Maxillofacial Surgery Hospital Clínic Barcelona Spain
| | - Llucia Alos
- Department of Pathology, Hospital Clínic, IDIBAPS University of Barcelona Barcelona Spain
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26
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Anguita M, Dávalos A, López de Sá E, Mateo J, Monreal M, Oliva J, Polo J. Anticoagulantes orales directos en la fibrilación auricular no valvular: cómo mejorar su uso en España. Semergen 2019; 45:109-116. [DOI: 10.1016/j.semerg.2018.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 10/17/2018] [Accepted: 10/25/2018] [Indexed: 12/22/2022]
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27
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Esquivel-Castro TA, Ibarra-Alonso M, Oliva J, Martínez-Luévanos A. Porous aerogel and core/shell nanoparticles for controlled drug delivery: A review. Materials Science and Engineering: C 2019; 96:915-940. [DOI: 10.1016/j.msec.2018.11.067] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 11/06/2018] [Accepted: 11/27/2018] [Indexed: 12/12/2022]
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28
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Esparza D, Lopez-Luke T, Oliva J, Cerdán-Pasarán A, Martínez-Benítez A, Mora-Seró I, Rosa EDL. Enhancement of Efficiency in Quantum Dot Sensitized Solar Cells Based on CdS/CdSe/CdSeTe Heterostructure by Improving the Light Absorption in the VIS-NIR Region. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.060] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Liu J, Oliva J, Tong K, Zhao F, Chen D, Pei Q. Multi-Colored Light-Emitting Electrochemical Cells Based on Thermal Activated Delayed Fluorescence Host. Sci Rep 2017; 7:1524. [PMID: 28484284 PMCID: PMC5431554 DOI: 10.1038/s41598-017-01812-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 03/30/2017] [Indexed: 11/18/2022] Open
Abstract
Light-emitting electrochemical cells (LECs) with the thermally activated delayed fluorescence(TADF) host and phosphorescent guests were fabricated using solution process. It is demonstrated for the first time that TADF, a well-known phenomenon that helps to increase electroluminescence efficiency by harvesting excitons from triplet states, is used as a host in LECs. Devices with green, yellow, red and warm white emissions were fabricated, with the best devices showing more than 7000 cd/m2 stable emission and a peak efficiency over 7 cd/A. Under high voltage stress, a burst of extremely high luminance of over 30,000 cd/m2 was observed. All these LEC devices are extremely simple with only one active layer. Thus, our results could pave way to produce low- cost light source with high luminance, using TADF molecules.
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Affiliation(s)
- Jiang Liu
- Department of Materials Science and Engineering, University of California, Los Angeles, California, 90095, USA
| | - Jorge Oliva
- Department of Materials Science and Engineering, University of California, Los Angeles, California, 90095, USA
| | - Kwing Tong
- Department of Materials Science and Engineering, University of California, Los Angeles, California, 90095, USA
| | - Fangchao Zhao
- Department of Materials Science and Engineering, University of California, Los Angeles, California, 90095, USA
| | - Dustin Chen
- Department of Materials Science and Engineering, University of California, Los Angeles, California, 90095, USA
| | - Qibing Pei
- Department of Materials Science and Engineering, University of California, Los Angeles, California, 90095, USA.
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Alcantar-Medina K, Herrera-Trejo M, Tlahuice-Flores A, Martinez-Vargas S, Oliva J, Martinez A. Evolution of the structural and electronic properties of small alkali metal-doped aluminum clusters. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2016.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Delgado-Ortega L, Domínguez A, Moya-Alarcón C, Hidalgo Á, Cordero L, Jiménez M, Gascó A, Villoro R, Borras J, González-Haba E, Menjón S, Oliva J, Pérez P, Vicente D. The socioeconomic burden of ovarian cancer in Spain. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw374.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Cermeño S, Martínez G, Oliva J, Cámara M, Barba A. Influence of the presence of ethanol on in vitro bioavailability of fungicide residues. Food Chem Toxicol 2016; 93:1-4. [DOI: 10.1016/j.fct.2016.04.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/18/2016] [Accepted: 04/20/2016] [Indexed: 11/27/2022]
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Perez-Mayen L, Oliva J, Salas P, De la Rosa E. Nanomolar detection of glucose using SERS substrates fabricated with albumin coated gold nanoparticles. Nanoscale 2016; 8:11862-11869. [PMID: 27230115 DOI: 10.1039/c6nr00163g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This work presents the design of substrates for Surface Enhanced Raman Scattering (SERS) using star-like gold nanoparticles synthesized by a wet chemical method. The SERS substrates were used for glucose detection for concentrations as low as 10(-7) M, which represents an enhancement factor (EF) of 10(9), as a result of the hot spot formed by the spike termination and appropriate distribution of the gold nanoparticles. An improvement of two orders of magnitude was obtained by coating the gold nanoparticles with albumin with the configuration: glass/Au nanoparticles/albumin. In this case the lowest detection was at a concentration of 10(-9) M for an EF of 10(11). The albumin molecule allowed us to enhance the Raman signal because of the formation of peptide bonds (COOH-NH2) generated due to the interaction of glucose with albumin, and the appropriate separation distance between the glucose molecules and gold nanoparticles. The presence of such peptide conjugates was confirmed by FTIR spectra. Thus, our results suggest that our SERS substrates can be useful for the detection of very low concentrations of glucose, which is important for the diagnosis of diabetes in the field of medicine.
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Affiliation(s)
| | - Jorge Oliva
- Centro de Investigaciones en Óptica A.C., A.P. 1-948, León, Gto 37160, México.
| | - P Salas
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, Querétaro, Qro. 76000, México
| | - Elder De la Rosa
- Centro de Investigaciones en Óptica A.C., A.P. 1-948, León, Gto 37160, México.
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García CR, Oliva J, Romero MT, Diaz-Torres LA. Enhancing the Photocatalytic Activity of Sr4
Al14
O25
: Eu2+
, Dy3+
Persistent Phosphors by Codoping with Bi3+
Ions. Photochem Photobiol 2016; 92:231-237. [DOI: 10.1111/php.12570] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/06/2015] [Indexed: 01/25/2023]
Affiliation(s)
- Carlos R. García
- Facultad de Ciencias Físico-Matemáticas; Universidad Autónoma de Coahuila; Saltillo Mexico
| | - Jorge Oliva
- Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA); Centro de Investigaciones en Óptica; León Mexico
| | - Maria Teresa Romero
- Facultad de Ciencias Físico-Matemáticas; Universidad Autónoma de Coahuila; Saltillo Mexico
| | - Luis A. Diaz-Torres
- Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA); Centro de Investigaciones en Óptica; León Mexico
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Oliva J, Rommel S, Fossdal CG, Hietala AM, Nemesio-Gorriz M, Solheim H, Elfstrand M. Transcriptional responses of Norway spruce (Picea abies) inner sapwood against Heterobasidion parviporum. Tree Physiol 2015. [PMID: 26209615 DOI: 10.1093/treephys/tpv063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The white-rot fungus Heterobasidion parviporum Niemelä & Korhonen establishes a necrotrophic interaction with Norway spruce (Picea abies (L.) H.Karst.) causing root and butt rot and growth losses in living trees. The interaction occurs first with the bark and the outer sapwood, as the pathogen enters the tree via wounds or root-to-root contacts. Later, when the fungus reaches the heartwood, it spreads therein creating a decay column, and the interaction mainly occurs in the inner sapwood where the tree creates a reaction zone. While bark and outer sapwood interactions are well studied, little is known about the nature of the transcriptional responses leading to the creation of a reaction zone. In this study, we sampled bark and sapwood both proximal and distal to the reaction zone in artificially inoculated and naturally infected trees. We quantified gene expression levels of candidate genes in secondary metabolite, hormone biosynthesis and signalling pathways using quantitative polymerase chain reaction. An up-regulation of mainly the phenylpropanoid pathway and jasmonic acid biosynthesis was found at the inoculation site, when inoculations were compared with wounding. We found that transcriptional responses in inner sapwood were similar to those reported upon infection through the bark. Our data suggest that the defence mechanism is induced due to direct fungal contact irrespective of the tissue type. Understanding the nature of these interactions is important when considering tree breeding-based resistance strategies to reduce the spread of the pathogen between and within trees.
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Affiliation(s)
- J Oliva
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Box 7026, S-750 07 Uppsala, Sweden
| | - S Rommel
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Box 7026, S-750 07 Uppsala, Sweden Institute of Population Genetics, Heinrich Heine University Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
| | - C G Fossdal
- NIBIO - Norwegian Institute of Bioeconomy Research, Plant Health and Biotechnology, Box 115, NO-1431 Ås, Norway
| | - A M Hietala
- NIBIO - Norwegian Institute of Bioeconomy Research, Plant Health and Biotechnology, Box 115, NO-1431 Ås, Norway
| | - M Nemesio-Gorriz
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Box 7026, S-750 07 Uppsala, Sweden
| | - H Solheim
- NIBIO - Norwegian Institute of Bioeconomy Research, Plant Health and Biotechnology, Box 115, NO-1431 Ås, Norway
| | - M Elfstrand
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Box 7026, S-750 07 Uppsala, Sweden
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36
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Mulero J, Martínez G, Oliva J, Cermeño S, Cayuela J, Zafrilla P, Martínez-Cachá A, Barba A. Phenolic compounds and antioxidant activity of red wine made from grapes treated with different fungicides. Food Chem 2015; 180:25-31. [DOI: 10.1016/j.foodchem.2015.01.141] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 01/19/2015] [Accepted: 01/26/2015] [Indexed: 10/24/2022]
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Pérez-Mayen L, Oliva J, Torres-Castro A, De la Rosa E. SERS substrates fabricated with star-like gold nanoparticles for zeptomole detection of analytes. Nanoscale 2015; 7:10249-58. [PMID: 25990708 DOI: 10.1039/c5nr02004b] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
This work presents the design of substrates for Surface Enhanced Raman Scattering (SERS) using star-like gold nanoparticles which were synthesized using a wet chemical method and functionalized with 1-dodecanethiol. This molecule allowed us to obtain a spacing of ∼2.6 nm among gold stars, which promoted the generation of SERS hotspots for single molecule detection. The gold nanoparticles were deposited on silicon substrates or on gold coated silicon substrates by using the Langmuir-Blodgett method which permitted the zeptomole detection of Rhodamine B (total moles per laser spot area). The Raman enhancement factor (EF) achieved for this level of detection was 10(12), and was obtained on the SERS substrate fabricated with the configuration: Si/Au film/Au nanoparticles. Raman spectra of the molecules TWEEN 20 and p-terphenyl were also measured in order to elucidate the effect of the molecule's length on the enhancement factor. According to these results, our SERS substrates without the gold film are useful for a minimum detection level of ∼10(-14) moles of analytes with sizes equal to or less than 1.3 nm and ∼10(-18) moles of analytes with the gold film (total moles per sample).
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Ceja-Fdez A, López-Luke T, Oliva J, Vivero-Escoto J, Gonzalez-Yebra AL, Rojas RAR, Martínez-Pérez A, de la Rosa E. Labeling of HeLa cells using ZrO2:Yb(3+)-Er(3+) nanoparticles with upconversion emission. J Biomed Opt 2015; 20:046006. [PMID: 25879389 DOI: 10.1117/1.jbo.20.4.046006] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 03/16/2015] [Indexed: 06/04/2023]
Abstract
This work reports the synthesis, structural characterization, and optical properties of ZrO2:Yb(3+)-Er(3+) (2–1 mol%) nanocrystals. The nanoparticles were coated with 3-aminopropyl triethoxysilane (APTES) and further modified with biomolecules, such as Biotin-Anti-rabbit (mouse IgG) and rabbit antibody-AntiKi-67, through a conjugation method. The conjugation was successfully confirmed by Fourier transform infrared, zeta potential, and dynamic light scattering. The internalization of the conjugated nanoparticles in human cervical cancer (HeLa) cells was followed by two-photon confocal microscopy. The ZrO2:Yb(3+)-Er(3+) nanocrystals exhibited strong red emission under 970-nm excitation. Moreover, the luminescence change due to the addition of APTES molecules and biomolecules on the nanocrystals was also studied. These results demonstrate that ZrO2:Yb(3+)-Er(3+) nanocrystals can be successfully functionalized with biomolecules to develop platforms for biolabeling and bioimaging.
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Affiliation(s)
- Andrea Ceja-Fdez
- Centro de Investigaciones en Óptica, A.C., Loma del Bosque 115, Lomas del Campestre, CP 37150, León, Guanajuato, México
| | - Tzarara López-Luke
- Centro de Investigaciones en Óptica, A.C., Loma del Bosque 115, Lomas del Campestre, CP 37150, León, Guanajuato, México
| | - Jorge Oliva
- Centro de Investigaciones en Óptica, A.C., Loma del Bosque 115, Lomas del Campestre, CP 37150, León, Guanajuato, México
| | - Juan Vivero-Escoto
- University of North Carolina at Charlotte, Department of Chemistry, 9201 University City Boulevard, Charlotte, North Carolina 28223, United States
| | - Ana Lilia Gonzalez-Yebra
- Universidad de Guanajuato Campus León, Departamento de Medicina y Nutrición, División Ciencias de la Salud, Boulevard Puente Milenio 1001, Predio San Carlos, CP 37670, León, Guanajuato, México
| | - Ruben A Rodriguez Rojas
- Universidad de Guadalajara, Centro Universitario de los Lagos, Paseos de la Montaña, CP 47460, Lagos de Moreno, Jalisco, México
| | - Andrea Martínez-Pérez
- Centro de Investigaciones en Óptica, A.C., Loma del Bosque 115, Lomas del Campestre, CP 37150, León, Guanajuato, MéxicodUniversidad de Guadalajara, Centro Universitario de los Lagos, Paseos de la Montaña, CP 47460, Lagos de Moreno, Jalisco, México
| | - Elder de la Rosa
- Centro de Investigaciones en Óptica, A.C., Loma del Bosque 115, Lomas del Campestre, CP 37150, León, Guanajuato, México
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García CR, Oliva J, Díaz-Torres LA. Photocatalytic Activity of LaSr2AlO5:Eu Ceramic Powders. Photochem Photobiol 2015; 91:505-9. [DOI: 10.1111/php.12428] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 01/27/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Carlos R. García
- Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA); Centro de Investigaciones en Óptica; León México
- Facultad de Ciencias Físico-Matemáticas; Universidad Autónoma de Coahuila; Unidad Campo Redondo; Saltillo México
| | - Jorge Oliva
- Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA); Centro de Investigaciones en Óptica; León México
| | - Luis A. Díaz-Torres
- Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA); Centro de Investigaciones en Óptica; León México
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40
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Oliva J, Martínez-Gil A, Lorenzo C, Cámara M, Salinas M, Barba A, Garde-Cerdán T. Influence of the use of fungicides on the volatile composition of Monastrell red wines obtained from inoculated fermentation. Food Chem 2015; 170:401-6. [DOI: 10.1016/j.foodchem.2014.08.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 08/12/2014] [Indexed: 10/24/2022]
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41
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Aguadé D, Poyatos R, Gómez M, Oliva J, Martínez-Vilalta J. The role of defoliation and root rot pathogen infection in driving the mode of drought-related physiological decline in Scots pine (Pinus sylvestris L.). Tree Physiol 2015; 35:229-42. [PMID: 25724949 DOI: 10.1093/treephys/tpv005] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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: 08/27/2014] [Accepted: 01/16/2015] [Indexed: 05/23/2023]
Abstract
Drought-related tree die-off episodes have been observed in all vegetated continents. Despite much research effort, however, the multiple interactions between carbon starvation, hydraulic failure and biotic agents in driving tree mortality under field conditions are still not well understood. We analysed the seasonal variability of non-structural carbohydrates (NSCs) in four organs (leaves, branches, trunk and roots), the vulnerability to embolism in roots and branches, native embolism (percentage loss of hydraulic conductivity (PLC)) in branches and the presence of root rot pathogens in defoliated and non-defoliated individuals in a declining Scots pine (Pinus sylvestris L.) population in the NE Iberian Peninsula in 2012, which included a particularly dry and warm summer. No differences were observed between defoliated and non-defoliated pines in hydraulic parameters, except for a higher vulnerability to embolism at pressures below -2 MPa in roots of defoliated pines. No differences were found between defoliation classes in branch PLC. Total NSC (TNSC, soluble sugars plus starch) values decreased during drought, particularly in leaves. Defoliation reduced TNSC levels across tree organs, especially just before (June) and during (August) drought. Root rot infection by the fungal pathogen Onnia P. Karst spp. was detected but it did not appear to be associated to tree defoliation. However, Onnia infection was associated with reduced leaf-specific hydraulic conductivity and sapwood depth, and thus contributed to hydraulic impairment, especially in defoliated pines. Infection was also associated with virtually depleted root starch reserves during and after drought in defoliated pines. Moreover, defoliated and infected trees tended to show lower basal area increment. Overall, our results show the intertwined nature of physiological mechanisms leading to drought-induced mortality and the inherent difficulty of isolating their contribution under field conditions.
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Affiliation(s)
- D Aguadé
- CREAF, Cerdanyola del Vallès, E-08193 Barcelona, Spain Universitat Autònoma Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain
| | - R Poyatos
- CREAF, Cerdanyola del Vallès, E-08193 Barcelona, Spain
| | - M Gómez
- Forest Science Centre of Catalonia, Solsona, Catalonia, Spain
| | - J Oliva
- Department of Forest Mycology and Plant Pathology, Uppsala Biocenter, Swedish University of Agricultural Sciences, Box 7026, S-750 07 Uppsala, Sweden
| | - J Martínez-Vilalta
- CREAF, Cerdanyola del Vallès, E-08193 Barcelona, Spain Universitat Autònoma Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain
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42
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Esparza D, Oliva J, López-Luke T, Carriles R, Zarazúa I, De la Rosa E. Current improvement in hybrid quantum dot sensitized solar cells by increased light-scattering with a polymer layer. RSC Adv 2015. [DOI: 10.1039/c5ra03280f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We investigate the effect of the incorporation of a material with efficient electron transport into a Hybrid Quantum Dot Sensitized Solar Cell (HyQDSSC).
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Affiliation(s)
| | - Jorge Oliva
- Centro de Investigaciones en Óptica
- León
- México
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Villoro R, Zozaya N, Hidalgo A, Oliva J, Rubio M. Key Cost Drivers Of Type 2 Diabetes Mellitus: an International Literature Review. Value Health 2014; 17:A340-A341. [PMID: 27200623 DOI: 10.1016/j.jval.2014.08.674] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- R Villoro
- Weber Economía y Salud, Madrid, Spain
| | - N Zozaya
- Weber Economía y Salud, Madrid, Spain
| | - A Hidalgo
- University of Castilla La Mancha, Toledo, Spain
| | - J Oliva
- University of Castilla La Mancha, Toledo, Spain
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44
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Massengill J, Lombardini E, Oliva J, Buller J, Gruber D. Ultrasonic Thermal Damage during Robotic Hysterecomy. J Minim Invasive Gynecol 2013. [DOI: 10.1016/j.jmig.2013.08.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Oliva J, Boberg J, Stenlid J. First report of
Sphaeropsis sapinea
on Scots pine (
Pinus sylvestris
) and Austrian pine (
P. nigra
) in Sweden. ACTA ACUST UNITED AC 2013. [DOI: 10.5197/j.2044-0588.2013.027.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- J. Oliva
- Department of Forest Mycology and Plant PathologySwedish University of Agricultural SciencesBox 702675006UppsalaSweden
| | - J. Boberg
- Department of Forest Mycology and Plant PathologySwedish University of Agricultural SciencesBox 702675006UppsalaSweden
| | - J. Stenlid
- Department of Forest Mycology and Plant PathologySwedish University of Agricultural SciencesBox 702675006UppsalaSweden
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46
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Mar J, Álvarez-Sabín J, Oliva J, Becerra V, Casado M, Yébenes M, González-Rojas N, Arenillas J, Martínez-Zabaleta M, Rebollo M, Lago A, Segura T, Castillo J, Gállego J, Jiménez-Martínez C, López-Gastón J, Moniche F, Casado-Naranjo I, López-Fernández J, González-Rodríguez C, Escribano B, Masjuan J. Los costes del ictus en España según su etiología. El protocolo del estudio CONOCES. Neurologia 2013; 28:332-9. [DOI: 10.1016/j.nrl.2012.07.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 07/10/2012] [Accepted: 07/13/2012] [Indexed: 11/30/2022] Open
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French SW, French BA, Oliva J, Li J, Bardag-Gorce F, Tillman B, Canaan A. FAT10 knock out mice livers fail to develop Mallory-Denk bodies in the DDC mouse model. Exp Mol Pathol 2012; 93:309-14. [PMID: 22981937 DOI: 10.1016/j.yexmp.2012.09.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 09/02/2012] [Indexed: 12/30/2022]
Abstract
Mallory-Denk bodies (MDBs) are aggresomes composed of undigested ubiqutinated short lived proteins which have accumulated because of a decrease in the rate of their degradation by the 26s proteasome. The decrease in the activity of the proteasome is due to a shift in the activity of the 26s proteasome to the immunoproteasome triggered by an increase in expression of the catalytic subunits of the immunoproteasome which replaces the catalytic subunits of the 26s proteasome. This switch in the type of proteasome in liver cells is triggered by the binding of IFNγ to the IFNγ sequence response element (ISRE) located on the FAT10 promoter. To determine if either FAT10 or IFNγ are essential for the formation of MDBs we fed both IFNγ and FAT10 knock out (KO) mice DDC added to the control diet for 10weeks in order to induce MDBs. Mice fed the control diet and Wild type mice fed the DDC or control diet were compared. MDBs were located by immunofluorescent double stains using antibodies to ubiquitin to stain MDBs and FAT10 to localize the increased expression of FAT10 in MDB forming hepatocytes. We found that MDB formation occurred in the IFNγ KO mice but not in the FAT10 KO mice. Western blots showed an increase in the ubiquitin smears and decreases β 5 (chymotrypsin-like 26S proteasome subunit) in the Wild type mice fed DDC but not in the FAT10 KO mice fed DDC. To conclude, we have demonstrated that FAT10 is essential to the induction of MDB formation in the DDC fed mice.
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Affiliation(s)
- S W French
- Department of Pathology, Harbor-UCLA Medical Center, Torrance, CA 90509, USA.
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Iglesias A, Del Castillo MD, Serrano JI, Oliva J. A computational knowledge-based model for emulating human performance in the Iowa Gambling Task. Neural Netw 2012; 33:168-80. [PMID: 22698633 DOI: 10.1016/j.neunet.2012.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 04/10/2012] [Accepted: 05/20/2012] [Indexed: 10/28/2022]
Abstract
A new computational knowledge-based model for emulating human performance in decision making tasks is proposed. This model is mainly based on the knowledge acquired through past experience, the knowledge extracted from the environment and the relationships between the concepts that represent these two kinds of knowledge. The proposed model divides the decision making process into two phases. The first phase lies in the estimation of the decision outcomes using a net of concepts. In the second phase, the proposed model uses a value function to score each possible alternative. The design of the model focuses on some psychological and neurophysiological evidence from current research. In order to validate the model, it is compared with other widely used models that implement different theories of decision making under risk and uncertainty. The model comparison is centered on a well defined task, the Iowa Gambling Task, used in several psychological experiments. The comparison applies an evaluation method based on the optimization of each model in order to emulate human performance individually starting both the participant and the model from the same environmentally available information. The results show that the performance of the proposed model is quantitatively better than the other compared models. Besides, using relevant concepts extracted from interviews with the participants increases the performance of the proposed model.
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Affiliation(s)
- A Iglesias
- Bioengineering Group, CSIC, Ctra. Campo Real km 0.200, La Poveda, E-28500 Arganda del Rey, Madrid, Spain.
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Monne JS, Gallardo E, Blanco R, Bastús R, Mesía R, Montesinos J, Macià M, Cambra M, Oliva J, Garcia Y. EP-1221 RESULTS OF CONCURRENT HYPERFRACTIONATED CHEMO-RADIOTHERAPY IN LIMITED SMALL-CELL LUNG CANCER (LD-SCLC). Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71554-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Oliva J, Cama J, Cortina JL, Ayora C, De Pablo J. Biogenic hydroxyapatite (Apatite II™) dissolution kinetics and metal removal from acid mine drainage. J Hazard Mater 2012; 213-214:7-18. [PMID: 22341745 DOI: 10.1016/j.jhazmat.2012.01.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 01/09/2012] [Accepted: 01/09/2012] [Indexed: 05/31/2023]
Abstract
Apatite II™ is a biogenic hydroxyapatite (expressed as Ca(5)(PO(4))OH) derived from fish bone. Using grains of Apatite II™ with a fraction size between 250 and 500 μm, batch and flow-through experiments were carried out to (1) determine the solubility constant for the dissolution reaction Ca(5)(PO(4))(3)(OH) ⇔ 5Ca(2+) + 3PO(4)(3-) + OH(-), (2) obtain steady-state dissolution rates over the pH range between 2.22 and 7.14, and (3) study the Apatite II™'s mechanisms to remove Pb(2+), Zn(2+), Mn(2+), and Cu(2+) from metal polluted water as it dissolves. The logK(S) value obtained was -50.8±0.82 at 25 °C. Far-from-equilibrium fish-bone hydroxyapatite dissolution rates decrease by increasing pH. Assuming that the dissolution reaction is controlled by fast adsorption of a proton on a specific surface site that dominates through the pH range studied, probably ≡PO(-), followed by a slow hydrolysis step, the dissolution rate dependence is expressed in mol m(-2) s(-1) as where Rate(25 °C) = -8.9 × 10(-10) × [9.96 × 10(5) × a(H+)]/[1 + 9.96 × 10(5) × a(H+)] where a(H+) is the proton activity in solution. Removal of Pb(2+), Zn(2+), Mn(2+) and Cu(2+) was by formation of phosphate-metal compounds on the Apatite II™ substrate, whereas removal of Cd(2+) was by surface adsorption. Increase in pH enhanced the removal of aqueous heavy metals. Using the kinetic parameters obtained (e.g., dissolution rate and pH-rate dependence law), reactive transport simulations reproduced the experimental variation of pH and concentrations of Ca, P and toxic divalent metal in a column experiment filled with Apatite II™ that was designed to simulate the Apatite II™-metal polluted water interaction.
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Affiliation(s)
- J Oliva
- Department of Mining Engineering and Natural Resources, Politechnical University of Catalunya, Bases de Manresa 61-73, Manresa 08242, Catalonia, Spain
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