Article
Plant Sciences
Seung-Ju Cha, Hyun Jun Park, Seon-Ju Kwon, Joo-Kyung Lee, Jin Hee Park
Summary: This study investigates the use of monitoring plant stem internal electrical conductivity (ECps) to predict physiological changes related to low temperature and salt stress. Results show that under low temperature stress, ECps decreases with lower chlorophyll content and higher proline content, while under salt stress, ECps increases with decreased chlorophyll and increased proline content.
PLANT GROWTH REGULATION
(2021)
Article
Chemistry, Multidisciplinary
Maria Vicent-Morales, Maria Esteve-Rochina, Joaquin Calbo, Enrique Orti, Inigo J. Vitorica-Yrezabal, Guillermo Minguez Espallargas
Summary: In this study, the use of tetrathiavulvalene-tetrabenzoic acid in porous hydrogen-bonded organic frameworks to induce semiconductivity is reported. By adjusting the synthetic conditions, three different polymorphs were obtained, and efficient charge transport was observed in two of them, demonstrating the semiconductor nature of these organic frameworks.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Matthew A. Limpert, Terrill B. Atwater, Tanner Hamann, Griffin Luh Godbey, Gregory T. Hitz, Dennis Wayne McOwen, Eric D. Wachsman
Summary: Lithium-ion-conducting garnets are promising solid-state electrolytes for lithium batteries. This study investigates the impact of lithium content on the physical and electrochemical properties of Li6.75 +/- XLa2.75Ca0.25Zr1.75Nb0.5O12 (LLCZN) garnets. The results show that variations in lithium content affect sintering and conductivity, with secondary phases hindering sintering and reducing total conductivity. Sintering in Al2O3 crucibles leads to higher total conductivity compared to MgO crucibles.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Applied
Salvatore Genovese, Francesco Epifano, Lorenzo Marchetti, Maria Bastianini, Fabio Cardellini, Roberto Spogli, Serena Fiorito
Summary: Capsaicinoids from hot peppers were analyzed using various heterogeneous supports, with one specific variety showing the highest concentrations. Solid phase extraction with hydrotalcite and bentonite yielded the best extractive yields. This study provides insights for industrial processes to obtain nutraceuticals and food additives enriched in capsaicinoids.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2021)
Article
Chemistry, Physical
Saichon Sriphan, Phieraya Pulphol, Thitirat Charoonsuk, Tosapol Maluangnont, Naratip Vittayakorn
Summary: The study investigated the impact of atmospheric water on the electrical properties and charge transport of ceramics, showing changes in dielectric characteristics and frequency-dependent anomalies caused by water adsorption. Analysis of AC conductivity provided insights into activation energy, effective dimension of the conduction pathway, and charge carrier concentration as a function of temperature under the influence of atmospheric water.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Geochemistry & Geophysics
Y. B. Tang, J. Z. Zhao, Y. Bernabe, M. Li
Summary: Fluid flow in geological formations is often concentrated in preferential flow paths due to pore-scale spatial fluctuations and connectivity. This study simulated flow through heterogeneous pore networks and identified preferential flow paths using graph theory based on pore-size heterogeneity and connectivity. The results showed a transition from uniform flow fields to flow localization on preferential paths, with differences between two- and three-dimensional simulations.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Chemistry, Multidisciplinary
Christine Arndt, Margarethe Hauck, Irene Wacker, Berit Zeller-Plumhoff, Florian Rasch, Mohammadreza Taale, Ali Shaygan Nia, Xinliang Feng, Rainer Adelung, Rasmus R. Schroeder, Fabian Schuett, Christine Selhuber-Unkel
Summary: The study presents a novel approach to fabricate hydrogel composites with outstanding electrical conductivity by microengineering graphene and polyacrylamide. The method allows for combining excellent conductivity of graphene with adaptable mechanical properties of polyacrylamide, while maintaining the original properties of the matrix. This approach shows promise for applications in bioelectronics and biohybrid robotics.
Article
Biochemistry & Molecular Biology
Sotiria Kripotou, Georgios Tsonos, Andrea Mezzetta, Angelica Mero, Lorenzo Guazzelli, Konstantinos Moutzouris, Ilias Stavrakas, Christos Tsonos
Summary: Broadband dielectric spectroscopy was used to study ionic conductivity and dynamics in tetraalkylammonium- and tetraalkylphosphonium-based ionic liquids with levulinate as the common anion. The results showed that ionic conductivity is controlled by viscosity and there is a strong association of ions. Tetraalkylphosphonium-based ionic liquids exhibited higher ionic conductivities than their ammonium counterparts due to their lower viscosity. The levulinate anion used in this study showed stronger interaction and association with the cations compared to the NTf2 anion. Different fitting approaches were employed to analyze dielectric data, and the correlation of relaxation processes was discussed in terms of ionic interactions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
E. I. Chereches, A. A. Minea
Summary: This study focuses on the applications of nanocolloids based on [C4mim][BF4] ionic liquid and investigates the electrical conductivity of the ionic liquid and three types of nanoparticles suspended in it. The results show that the electrical conductivity variation with temperature is linear, and the loading of nanoparticles has a significant impact on the conductivity of the suspensions.
Article
Materials Science, Multidisciplinary
Huanyu Liang, Zining Sun, Mingrui Zhang, Wei Hu, Jing Shi, Jingwei Chen, Weiqian Tian, Minghua Huang, Jingyi Wu, Huanlei Wang
Summary: Researchers have synthesized boron-doped carbon nanobubbles (BCNBs) using a template method, which improves the conductivity of the carbon structure and enhances the intercalation-controlled and capacitive-controlled capacities of potassium-ion batteries (PIBs). Theoretical calculations confirm that boron doping effectively enhances conductivity and electrochemical reversibility in PIBs. The designed BCNBs anode exhibits high specific capacity, excellent rate performance, and considerable capacity retention. Additionally, the strategy of pre-forming a stable artificial inorganic solid electrolyte interface enables high initial coulombic efficiency for BCNBs. This work demonstrates the potential of heteroatom-doping strategy to enhance potassium-ion storage and pave the way for high-energy/power storage devices.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Applied
Ozce Durak, Muhammad Zeeshan, Nitasha Habib, Hasan Can Gulbalkan, Ala Abdulalem Abdo Moqbel Alsuhile, Hatice Pelin Caglayan, Samira F. Kurtoglu-Oztulum, Yuxin Zhao, Zeynep Pinar Haslak, Alper Uzun, Seda Keskin
Summary: The modification of porous materials' physicochemical properties using ionic liquids (ILs) has been extensively studied for various applications. The combination of ILs and porous materials shows great potential in gas adsorption and separation, catalysis, liquid-phase adsorption and separation, and ionic conductivity due to superior performances of hybrid composites. This review discusses the evolution of IL/porous material composites as a research field by exploring different types of porous materials, including metal organic frameworks (MOFs), covalent organic frameworks (COFs), zeolites, and carbonaceous materials. The challenges, opportunities, synthesis methods, characterization techniques, applications, and future prospects of IL/porous materials are discussed to provide a roadmap for this area. The future advancements discussed in this review will provide insights into the design and development of novel hybrid materials and their potential to replace conventional materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Materials Science, Ceramics
Shalini Rajpoot, Jang-Hoon Ha, Young-Wook Kim
Summary: The mechanical, thermal, and electrical properties of porous SiC ceramics can be independently tuned by selecting the appropriate starting particle size and sintering atmosphere. In the porosity range of 40% to 54%, the compressive strength and thermal conductivity of porous SiC ceramics increased as the porosity increased, contrary to the general trend. Additionally, the electrical conductivity of porous SiC ceramics sintered in N-2 atmosphere was significantly higher compared to those sintered in Ar atmosphere due to N doping in the PCS-derived beta-SiC.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Jiang Liu, Felix Kerner, Nicolas Schlueter, Daniel Schroeder
Summary: This study investigates the factors influencing the performance of polymer electrolyte membrane (PEM) electrolyzers, specifically the porous transport layer (PTL). By conducting numerical simulations and calculations, the researchers found that reducing porosity and fiber radii improved interfacial contact and electrical conductivity of the PTL, while decreasing the anisotropy parameters increased electrical conductivity in the through-plane direction. The design of PTLs should be differentiated based on the operating conditions, with lower porosity and fiber radii for nonstarvation conditions and higher porosity, lower anisotropy parameters, and smaller fiber radii for starvation conditions. Graded PTLs with customized porosity, fiber radius, and fiber orientation can enhance structural and transport properties.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Marcia A. Cooper, William W. Erikson, Michael S. Oliver
Summary: The study collected simultaneous data of quasi-static compaction and electrical conductivity of porous, binary powder mixtures as a function of bulk density. It found a dependency of conductivity on relative bulk density and metal volume fraction, influenced by conductor type and particle characteristics. Finite element models were used for simulating bulk conductivity near threshold, while the general effective media equation was used for conductivity across the compression regime.
MECHANICS OF MATERIALS
(2021)
Review
Chemistry, Physical
Yue Huang, Ruiming Qiu, Wenchao Lian, Libin Lei, Tong Liu, Jihao Zhang, Yao Wang, Jianping Liu, Jin Huang, Fanglin Chen
Summary: This review summarizes five methods for determining the electrical conduction properties of mixed ionic-electronic conducting (MIEC) oxides and discusses their modifications considering electrode polarization and operation conditions. The application of these methods in assessing the conduction properties of triple ionic-electronic conducting (TIEC) oxides is highlighted, and the reliability and applicability of these methods are elaborated and compared.
JOURNAL OF POWER SOURCES
(2022)
Article
Horticulture
Francisco A. Oliveira, Sergio N. Duarte, Jose F. Medeiros, Nildo S. Dias, Mychelle K. T. Oliveira, Ricardo C. P. Silva, Keivianne S. Lima
HORTICULTURA BRASILEIRA
(2015)
Article
Agricultural Engineering
Francisco de A. de Oliveira, Rodolfo A. A. Guedes, Lucas P. Gomes, Francisco M. S. Bezerra, Luan A. Lima, Mychelle K. T. de Oliveira
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2015)
Article
Agricultural Engineering
Isaias P. Guimaraes, Francisco de A. de Oliveira, Salvador B. Torres, Francisco E. C. B. Pereira, Francisco D. de Franca, Mychelle K. T. de Oliveira
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2016)
Article
Horticulture
Francisco A. Oliveira, Jaira M. Oliveira, Maria L. Souza Neta, Mychelle K. T Oliveira, Rita C. Alves
HORTICULTURA BRASILEIRA
(2017)
Article
Agricultural Engineering
Francisco de A. de Oliveira, Maria L. de Souza Neta, Neyton de O. Miranda, Antonia A. T. Souza, Mychelle K. T. de Oliveira, Dennis D. A. da Silva
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2017)
Article
Horticulture
Francisco A. Oliveira, Jose F. Medeiros, Paulo S. F. Linhares, Rita C. Alves, Arthur M. A. Medeiros, Mychelle K. T. Oliveira
HORTICULTURA BRASILEIRA
(2014)
Article
Horticulture
Francisco A. Oliveira, Mychelle K. T. Oliveira, Jose F. Medeiros, Otaciana M. P. Silva, Emanoela P. Paiva, Priscila M. E. Maia
HORTICULTURA BRASILEIRA
(2014)
Article
Plant Sciences
Renata de Paiva Dantas, Francisco de Assis de Oliveira, Antonio Lucieudo Goncalves Cavalcante, Kleane Targino Oliveira Pereira, Mychelle Karla Teixeira de Oliveira, Jose Francismar de Medeiros
Article
Agricultural Engineering
Francisco de A. de Oliveira, I. G. Francisco Paiva, Jose F. de Medeiros, Mikhael R. de S. Melo, Mychelle K. T. de Oliveira, Ricardo C. P. da Silvas
Summary: Adequate potassium and calcium nutrition help reduce salt stress on tomatoes by balancing plant nutrition. Higher salinity levels can lead to satisfactory tomato production, while fertigation with low K+/Ca2+ proportions intensifies the effects of salinity on tomato crops.
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2021)
Article
Horticulture
Francisco A. Oliveira, Rafaelle S. Freitas, Mychelle K. T. Oliveira, Sandy T. Santos, Jessilanne Plinia B. M. Costa, Helena M. Morais Neta, Isabelly C. S. Marques, Carla Jamile X. Cordeiro
Summary: The electrical conductivity of the nutrient solution has a direct impact on the growth and quality of kohlrabi. An experiment was conducted to evaluate the suitable electrical conductivity for soilless cultivation of kohlrabi. The results showed that the best growth and quality were achieved with a nutrient solution electrical conductivity of approximately 2.0 dS m(-1).
HORTICULTURA BRASILEIRA
(2022)
Article
Horticulture
Jessilanne Plinia B. M. Costa, Francisco A. Oliveira, Sandy T. dos Santos, Mychelle K. T. Oliveira, Isabelly C. S. Marques, Carla Jamile X. Cordeiro, Helena M. Morais Neta Gois
Summary: The objective of this study was to analyze the effect of potassium supplementation as a salinity-attenuating agent in okra. The results showed that potassium influenced the growth and yield characteristics of okra irrigated with saline water. Adequate potassium supplementation under saline irrigation conditions can improve the yield of okra.
HORTICULTURA BRASILEIRA
(2022)
Article
Agricultural Engineering
Victor G. Pessoa, Helena M. de M. N. Gois, Francisco de A. de Oliveira, Mychelle K. T. de Oliveira, Carla J. X. Cordeiro, Carlos E. A. de Oliveira, Mario J. V. Costa, Isabelly C. da S. Marques
Summary: The objective of this study was to evaluate the effect of enriching the nutrient solution with calcium nitrate in solutions prepared with saline water on the growth of lettuce under saline stress conditions. The results showed that, except for stem diameter, number of total leaves, plant pH, and vitamin C content, the other variables were affected by the extra addition of Ca(NO3)2 in the nutrient solutions. Therefore, the use of extra doses of Ca(NO3)2 in the lettuce crop is not recommended when preparing the nutrient solution with saline water.
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2023)
Article
Agriculture, Multidisciplinary
Giordanio Bruno Silva Oliveira, Francisco de Assis de Oliveira, Sandy Thomaz dos Santos, Mychelle Karla Teixeira de Oliveira, Edna Maria Mendes Aroucha, Jose Gustavo Lima de Almeida, Paulo Victor de Menezes, Mario Jonas Veras Costa, Francisco Felipe Barroso Pinto, Francisco Adenio Teixeira Alves
Summary: This study aimed to examine the efficiency of potassium nutrition as a salt stress-mitigating agent in melon, but found that the addition of extra potassium did not mitigate the deleterious effect of salinity on the yield of melon.
SEMINA-CIENCIAS AGRARIAS
(2021)
Article
Agricultural Engineering
Francisco de A. de Oliveira, Mychelle K. T. de Oliveira, Sandy T. dos Santos, Jessilanne P. B. M. Costa, Jose F. de Medeiros, Lucia R. de L. Regis
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2020)