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Lv ZP, Kapuscinski M, Járvás G, Yu S, Bergström L. Time-Resolved SAXS Study of Polarity- and Surfactant-Controlled Superlattice Transformations of Oleate-Capped Nanocubes During Solvent Removal. Small 2022; 18:e2106768. [PMID: 35523733 DOI: 10.1002/smll.202106768] [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: 11/04/2021] [Revised: 04/14/2022] [Indexed: 06/14/2023]
Abstract
Structural transformations and lattice expansion of oleate-capped iron oxide nanocube superlattices are studied by time-resolved small-angle X-ray scattering (SAXS) during solvent removal. The combination of conductor-like screening model for real solvents (COSMO-RS) theory with computational fluid dynamics (CFD) modeling provides information on the solvent composition and polarity during droplet evaporation. Evaporation-driven poor-solvent enrichment in the presence of free oleic acid results in the formation of superlattices with a tilted face-centered cubic (fcc) structure when the polarity reaches its maximum. The tilted fcc lattice expands subsequently during the removal of the poor solvent and eventually transforms to a regular simple cubic (sc) lattice during the final evaporation stage when only free oleic acid remains. Comparative studies show that both the increase in polarity as the poor solvent is enriched and the presence of a sufficient amount of added oleic acid is required to promote the formation of structurally diverse superlattices with large domain sizes.
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Affiliation(s)
- Zhong-Peng Lv
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
- Department of Applied Physics, Aalto University, Espoo, FI-00076, Finland
| | - Martin Kapuscinski
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
- Department of Materials Science and Engineering, Uppsala University, Uppsala, SE-75103, Sweden
| | - Gábor Járvás
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprem, HU-8200, Hungary
| | - Shun Yu
- Department of Materials and Surface Design, RISE Research Institute of Sweden, Lund, SE-22370, Sweden
| | - Lennart Bergström
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
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2
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Homlok R, Mile V, Takács E, Járvás G, Góger S, Wojnárovits L. Comparison of hydrogen atom and hydroxyl radical reactions with simple aromatic molecules in aqueous solution. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110754] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Járvás G, Guttman A. Commentary regarding "Decision support algorithm for the selection of analytical methods in organic compounds detection for future extraterrestrial exploratory missions". Electrophoresis 2019; 40:2662-2663. [PMID: 31179558 DOI: 10.1002/elps.201900184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 05/20/2019] [Revised: 06/03/2019] [Accepted: 06/06/2019] [Indexed: 11/08/2022]
Abstract
Mátyás et al. recently published their paper entitled as "Decision support algorithm for the selection of analytical methods in organic compounds detection for future extraterrestrial exploratory missions," which we found interesting. However, there are some points of the developed method that need to be refined to get a practical tool for practitioners. In this commentary, we have summarized our suggestions and comments mainly from the chemical/separation point of view.
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Affiliation(s)
- Gábor Járvás
- Horváth Csaba Laboratory of Bioseparation Sciences, Research Centre for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Translational Glycomics Research Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém, Hungary
| | - András Guttman
- Horváth Csaba Laboratory of Bioseparation Sciences, Research Centre for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Translational Glycomics Research Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém, Hungary.,SCIEX, Brea, CA, USA
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4
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Járvás G, Varga T, Szigeti M, Hajba L, Fürjes P, Rajta I, Guttman A. Tilted pillar array fabrication by the combination of proton beam writing and soft lithography for microfluidic cell capture Part 2: Image sequence analysis based evaluation and biological application. Electrophoresis 2017; 39:534-539. [PMID: 28714133 DOI: 10.1002/elps.201700268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 06/29/2017] [Revised: 07/10/2017] [Accepted: 07/10/2017] [Indexed: 11/11/2022]
Abstract
As a continuation of our previously published work, this paper presents a detailed evaluation of a microfabricated cell capture device utilizing a doubly tilted micropillar array. The device was fabricated using a novel hybrid technology based on the combination of proton beam writing and conventional lithography techniques. Tilted pillars offer unique flow characteristics and support enhanced fluidic interaction for improved immunoaffinity based cell capture. The performance of the microdevice was evaluated by an image sequence analysis based in-house developed single-cell tracking system. Individual cell tracking allowed in-depth analysis of the cell-chip surface interaction mechanism from hydrodynamic point of view. Simulation results were validated by using the hybrid device and the optimized surface functionalization procedure. Finally, the cell capture capability of this new generation microdevice was demonstrated by efficiently arresting cells from a HT29 cell-line suspension.
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Affiliation(s)
- Gábor Járvás
- MTA-PE Translational Glycomics Group, MUKKI, University of Pannonia, Veszprém, Hungary.,Horváth Csaba Memorial Institute of Bioanalytical Research, University of Debrecen, Debrecen, Hungary
| | - Tamás Varga
- Institute of Chemical and Process Engineering, University of Pannonia, Veszprém, Hungary
| | - Márton Szigeti
- MTA-PE Translational Glycomics Group, MUKKI, University of Pannonia, Veszprém, Hungary.,Horváth Csaba Memorial Institute of Bioanalytical Research, University of Debrecen, Debrecen, Hungary
| | - László Hajba
- MTA-PE Translational Glycomics Group, MUKKI, University of Pannonia, Veszprém, Hungary
| | - Péter Fürjes
- Hungarian Academy of Sciences, Centre for Energy Research, Institute of Technical Physics and Materials Science, Budapest, Hungary
| | | | - András Guttman
- MTA-PE Translational Glycomics Group, MUKKI, University of Pannonia, Veszprém, Hungary.,Horváth Csaba Memorial Institute of Bioanalytical Research, University of Debrecen, Debrecen, Hungary
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5
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Abstract
Databases which store and manage long-term scientific information related to life science are used to store huge amount of quantitative attributes. Introduction of a new entity attribute requires modification of the existing data tables and the programs that use these data tables. The solution is increasing the virtual data tables while the number of screens remains the same. The main objective of the present study was to introduce a logic called Joker Tao (JT) which provides universal data storage for cloud-based databases. It means all types of input data can be interpreted as an entity and attribute at the same time, in the same data table.
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Affiliation(s)
- Bence Mátyás
- Kerpely Kalman Doctoral School, Universidad Politécnica Salesiana, Rumichaca y Morán Valverde s/n, Debrecen, Ecuador
| | - Máté Szarka
- Medical and Health Sciences Center, Research Centre for Molecular Medicine, University of Debrecen, Debrecen, Hungary.,Vitrolink Biotechnological Researching, Development,Servicing and Trading Limited Liability Company, Debrecen, Hungary
| | - Gábor Járvás
- Hungarian Academy of Sciences MTA-PE, Translational Glycomics Group, University of Pannonia, Veszprem, Hungary
| | - Gábor Kusper
- Computer Science Department, Eszterhazy Karoly University, Eger, Hungary
| | - István Argay
- Department of Obstetric and Gynecology, UD MSHC, University of Debrecen Medical Center, Debrecen, Hungary.,IRCAD France Laporoscopic Training center, Strasbourg, France
| | - Alice Fialowski
- Institute of Mathematics and Informatics, University of Pécs, Pécs, Hungary
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Kerékgyártó M, Járvás G, Novák L, Guttman A. Activation energy associated with the electromigration of oligosaccharides through viscosity modifier and polymeric additive containing background electrolytes. Electrophoresis 2015; 37:573-8. [DOI: 10.1002/elps.201500394] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 11/09/2015] [Accepted: 11/09/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Márta Kerékgyártó
- Horváth Csaba Laboratory of Bioseparation Sciences, Regional Centre for Molecular Medicine; University of Debrecen; Debrecen Hungary
| | - Gábor Járvás
- MTA-PE Translational Glycomics Research Group; University of Pannonia; Veszprem Hungary
| | - Levente Novák
- Department of Colloid and Environmental Chemistry, Faculty of Sciences and Technology; University of Debrecen; Debrecen Hungary
| | - András Guttman
- Horváth Csaba Laboratory of Bioseparation Sciences, Regional Centre for Molecular Medicine; University of Debrecen; Debrecen Hungary
- MTA-PE Translational Glycomics Research Group; University of Pannonia; Veszprem Hungary
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